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* [U-Boot] [PATCH v4 1/8] include: Add support for "do_div" macro
       [not found] <1451069788-6786-1-git-send-email-wills.wang@live.com>
@ 2015-12-25 18:56 ` Wills Wang
  2015-12-26  7:24   ` Marek Vasut
  2015-12-26 13:09   ` Daniel Schwierzeck
  2015-12-25 18:56 ` [U-Boot] [PATCH v4 2/8] mips: implement to access the KSEG0/1 memory range in map_physmem Wills Wang
                   ` (6 subsequent siblings)
  7 siblings, 2 replies; 39+ messages in thread
From: Wills Wang @ 2015-12-25 18:56 UTC (permalink / raw)
  To: u-boot

Use the div64 header files from the kernel.

Signed-off-by: Wills Wang <wills.wang@live.com>
---

Changes in v4: None
Changes in v3: None
Changes in v2: None

 arch/mips/include/asm/div64.h | 68 +++++++++++++++++++++++++++++++++++++++++++
 include/asm-generic/div64.h   | 59 +++++++++++++++++++++++++++++++++++++
 2 files changed, 127 insertions(+)
 create mode 100644 arch/mips/include/asm/div64.h
 create mode 100644 include/asm-generic/div64.h

diff --git a/arch/mips/include/asm/div64.h b/arch/mips/include/asm/div64.h
new file mode 100644
index 0000000..e5e6782
--- /dev/null
+++ b/arch/mips/include/asm/div64.h
@@ -0,0 +1,68 @@
+/*
+ * Copyright (C) 2000, 2004  Maciej W. Rozycki
+ * Copyright (C) 2003, 07 Ralf Baechle (ralf at linux-mips.org)
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#ifndef __ASM_DIV64_H
+#define __ASM_DIV64_H
+
+#include <asm-generic/div64.h>
+
+#if BITS_PER_LONG == 64
+
+#include <linux/types.h>
+
+/*
+ * No traps on overflows for any of these...
+ */
+
+#define __div64_32(n, base)						\
+({									\
+	unsigned long __cf, __tmp, __tmp2, __i;				\
+	unsigned long __quot32, __mod32;				\
+	unsigned long __high, __low;					\
+	unsigned long long __n;						\
+									\
+	__high = *__n >> 32;						\
+	__low = __n;							\
+	__asm__(							\
+	"	.set	push\n"						\
+	"	.set	noat\n"						\
+	"	.set	noreorder\n"					\
+	"	move	%2, $0\n"					\
+	"	move	%3, $0\n"					\
+	"	b	1f\n"						\
+	"	 li	%4, 0x21\n"					\
+	"0:\n"								\
+	"	sll	$1, %0, 0x1\n"					\
+	"	srl	%3, %0, 0x1f\n"					\
+	"	or	%0, $1, %5\n"					\
+	"	sll	%1, %1, 0x1\n"					\
+	"	sll	%2, %2, 0x1\n"					\
+	"1:\n"								\
+	"	bnez	%3, 2f\n"					\
+	"	 sltu	%5, %0, %z6\n"					\
+	"	bnez	%5, 3f\n"					\
+	"2:\n"								\
+	"	 addiu	%4, %4, -1\n"					\
+	"	subu	%0, %0, %z6\n"					\
+	"	addiu	%2, %2, 1\n"					\
+	"3:\n"								\
+	"	bnez	%4, 0b\n\t"					\
+	"	 srl	%5, %1, 0x1f\n\t"				\
+	"	.set	pop"						\
+	: "=&r" (__mod32), "=&r" (__tmp),				\
+	  "=&r" (__quot32), "=&r" (__cf),				\
+	  "=&r" (__i), "=&r" (__tmp2)					\
+	: "Jr" (base), "0" (__high), "1" (__low));			\
+									\
+	(__n) = __quot32;						\
+	__mod32;							\
+})
+
+#endif /* BITS_PER_LONG == 64 */
+
+#endif /* __ASM_DIV64_H */
diff --git a/include/asm-generic/div64.h b/include/asm-generic/div64.h
new file mode 100644
index 0000000..d689fc4
--- /dev/null
+++ b/include/asm-generic/div64.h
@@ -0,0 +1,59 @@
+/*
+ * Copyright (C) 2003 Bernardo Innocenti <bernie@develer.com>
+ * Based on former asm-ppc/div64.h and asm-m68knommu/div64.h
+ *
+ * The semantics of do_div() are:
+ *
+ * uint32_t do_div(uint64_t *n, uint32_t base)
+ * {
+ *  uint32_t remainder = *n % base;
+ *  *n = *n / base;
+ *  return remainder;
+ * }
+ *
+ * NOTE: macro parameter n is evaluated multiple times,
+ *       beware of side effects!
+ */
+
+#ifndef _ASM_GENERIC_DIV64_H
+#define _ASM_GENERIC_DIV64_H
+
+#include <linux/types.h>
+#include <linux/compiler.h>
+
+#if BITS_PER_LONG == 64
+
+# define do_div(n, base) ({					\
+	uint32_t __base = (base);				\
+	uint32_t __rem;						\
+	__rem = ((uint64_t)(n)) % __base;			\
+	(n) = ((uint64_t)(n)) / __base;				\
+	__rem;							\
+})
+
+#elif BITS_PER_LONG == 32
+
+extern uint32_t __div64_32(uint64_t *dividend, uint32_t divisor);
+
+/* The unnecessary pointer compare is there
+ * to check for type safety (n must be 64bit)
+ */
+# define do_div(n, base) ({				\
+	uint32_t __base = (base);			\
+	uint32_t __rem;					\
+	(void)(((typeof((n)) *)0) == ((uint64_t *)0));	\
+	if (likely(((n) >> 32) == 0)) {			\
+		__rem = (uint32_t)(n) % __base;		\
+		(n) = (uint32_t)(n) / __base;		\
+	} else						\
+		__rem = __div64_32(&(n), __base);	\
+	__rem;						\
+})
+
+#else /* BITS_PER_LONG == ?? */
+
+# error do_div() does not yet support the C64
+
+#endif /* BITS_PER_LONG */
+
+#endif /* _ASM_GENERIC_DIV64_H */
-- 
1.9.1

^ permalink raw reply related	[flat|nested] 39+ messages in thread

* [U-Boot] [PATCH v4 2/8] mips: implement to access the KSEG0/1 memory range in map_physmem
       [not found] <1451069788-6786-1-git-send-email-wills.wang@live.com>
  2015-12-25 18:56 ` [U-Boot] [PATCH v4 1/8] include: Add support for "do_div" macro Wills Wang
@ 2015-12-25 18:56 ` Wills Wang
  2015-12-26  7:25   ` Marek Vasut
  2015-12-25 18:56 ` [U-Boot] [PATCH v4 3/8] mips: add base support for atheros ath79 based SOCs Wills Wang
                   ` (5 subsequent siblings)
  7 siblings, 1 reply; 39+ messages in thread
From: Wills Wang @ 2015-12-25 18:56 UTC (permalink / raw)
  To: u-boot

U-boot just use the no MMU virtual address segment(KSEG0/1), this
patch enable access the uncached memory range(KSEG1) by flag
"MAP_NOCACHE", other flag for KSEG0 access.

Signed-off-by: Wills Wang <wills.wang@live.com>
---

Changes in v4: None
Changes in v3: None
Changes in v2: None

 arch/mips/include/asm/io.h | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/arch/mips/include/asm/io.h b/arch/mips/include/asm/io.h
index a7ab087..943053d 100644
--- a/arch/mips/include/asm/io.h
+++ b/arch/mips/include/asm/io.h
@@ -485,7 +485,7 @@ static inline void sync(void)
  * that can be used to access the memory range with the caching
  * properties specified by "flags".
  */
-#define MAP_NOCACHE	(0)
+#define MAP_NOCACHE	(1)
 #define MAP_WRCOMBINE	(0)
 #define MAP_WRBACK	(0)
 #define MAP_WRTHROUGH	(0)
@@ -493,7 +493,10 @@ static inline void sync(void)
 static inline void *
 map_physmem(phys_addr_t paddr, unsigned long len, unsigned long flags)
 {
-	return (void *)paddr;
+	if (flags)
+		return (void *)KSEG1ADDR(paddr);
+	else
+		return (void *)KSEG0ADDR(paddr);
 }
 
 /*
-- 
1.9.1

^ permalink raw reply related	[flat|nested] 39+ messages in thread

* [U-Boot] [PATCH v4 3/8] mips: add base support for atheros ath79 based SOCs
       [not found] <1451069788-6786-1-git-send-email-wills.wang@live.com>
  2015-12-25 18:56 ` [U-Boot] [PATCH v4 1/8] include: Add support for "do_div" macro Wills Wang
  2015-12-25 18:56 ` [U-Boot] [PATCH v4 2/8] mips: implement to access the KSEG0/1 memory range in map_physmem Wills Wang
@ 2015-12-25 18:56 ` Wills Wang
  2015-12-26  7:28   ` Marek Vasut
  2015-12-25 18:56 ` [U-Boot] [PATCH v4 4/8] mips: ath79: add serial driver for ar933x SOC Wills Wang
                   ` (4 subsequent siblings)
  7 siblings, 1 reply; 39+ messages in thread
From: Wills Wang @ 2015-12-25 18:56 UTC (permalink / raw)
  To: u-boot

This patch enable work for ar933x SOC, tested on ar9331 board.

Signed-off-by: Wills Wang <wills.wang@live.com>
---

Changes in v4: None
Changes in v3: None
Changes in v2: None

 arch/mips/Makefile                              |    1 +
 arch/mips/include/asm/global_data.h             |    5 +
 arch/mips/mach-ath79/Makefile                   |    9 +
 arch/mips/mach-ath79/ar933x/Makefile            |    8 +
 arch/mips/mach-ath79/ar933x/clk.c               |   86 ++
 arch/mips/mach-ath79/ar933x/cpu.c               |   32 +
 arch/mips/mach-ath79/ar933x/ddr_tap.S           |  268 ++++++
 arch/mips/mach-ath79/ar933x/lowlevel_init.S     |  460 +++++++++
 arch/mips/mach-ath79/cpu.c                      |  171 ++++
 arch/mips/mach-ath79/dram.c                     |   27 +
 arch/mips/mach-ath79/include/mach/ar71xx_regs.h | 1144 +++++++++++++++++++++++
 arch/mips/mach-ath79/include/mach/ath79.h       |  143 +++
 arch/mips/mach-ath79/include/mach/ddr.h         |   13 +
 arch/mips/mach-ath79/reset.c                    |   46 +
 14 files changed, 2413 insertions(+)
 create mode 100644 arch/mips/mach-ath79/Makefile
 create mode 100644 arch/mips/mach-ath79/ar933x/Makefile
 create mode 100644 arch/mips/mach-ath79/ar933x/clk.c
 create mode 100644 arch/mips/mach-ath79/ar933x/cpu.c
 create mode 100644 arch/mips/mach-ath79/ar933x/ddr_tap.S
 create mode 100644 arch/mips/mach-ath79/ar933x/lowlevel_init.S
 create mode 100644 arch/mips/mach-ath79/cpu.c
 create mode 100644 arch/mips/mach-ath79/dram.c
 create mode 100644 arch/mips/mach-ath79/include/mach/ar71xx_regs.h
 create mode 100644 arch/mips/mach-ath79/include/mach/ath79.h
 create mode 100644 arch/mips/mach-ath79/include/mach/ddr.h
 create mode 100644 arch/mips/mach-ath79/reset.c

diff --git a/arch/mips/Makefile b/arch/mips/Makefile
index 6a9f798..da5fa72 100644
--- a/arch/mips/Makefile
+++ b/arch/mips/Makefile
@@ -8,6 +8,7 @@ libs-y += arch/mips/cpu/
 libs-y += arch/mips/lib/
 
 machine-$(CONFIG_SOC_AU1X00) += au1x00
+machine-$(CONFIG_ARCH_ATH79) += ath79
 
 machdirs := $(patsubst %,arch/mips/mach-%/,$(machine-y))
 libs-y += $(machdirs)
diff --git a/arch/mips/include/asm/global_data.h b/arch/mips/include/asm/global_data.h
index 2d9a0c9..8cbc298 100644
--- a/arch/mips/include/asm/global_data.h
+++ b/arch/mips/include/asm/global_data.h
@@ -20,6 +20,11 @@ struct arch_global_data {
 	unsigned long tbl;
 	unsigned long lastinc;
 #endif
+#ifdef CONFIG_ARCH_ATH79
+	unsigned long soc;
+	unsigned long rev;
+	unsigned long id;
+#endif
 };
 
 #include <asm-generic/global_data.h>
diff --git a/arch/mips/mach-ath79/Makefile b/arch/mips/mach-ath79/Makefile
new file mode 100644
index 0000000..bc0a41f
--- /dev/null
+++ b/arch/mips/mach-ath79/Makefile
@@ -0,0 +1,9 @@
+#
+# SPDX-License-Identifier:	GPL-2.0+
+#
+
+obj-y += reset.o
+obj-y += cpu.o
+obj-y += dram.o
+
+obj-$(CONFIG_SOC_AR933X)	+= ar933x/
diff --git a/arch/mips/mach-ath79/ar933x/Makefile b/arch/mips/mach-ath79/ar933x/Makefile
new file mode 100644
index 0000000..22107d5
--- /dev/null
+++ b/arch/mips/mach-ath79/ar933x/Makefile
@@ -0,0 +1,8 @@
+#
+# SPDX-License-Identifier:	GPL-2.0+
+#
+
+obj-y += cpu.o
+obj-y += clk.o
+obj-y += lowlevel_init.o
+obj-y += ddr_tap.o
diff --git a/arch/mips/mach-ath79/ar933x/clk.c b/arch/mips/mach-ath79/ar933x/clk.c
new file mode 100644
index 0000000..3e130c7
--- /dev/null
+++ b/arch/mips/mach-ath79/ar933x/clk.c
@@ -0,0 +1,86 @@
+/*
+ * (C) Copyright 2015
+ * Wills Wang, <wills.wang@live.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/addrspace.h>
+#include <asm/types.h>
+#include <asm/arch/ar71xx_regs.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static u32 ar933x_get_xtal(void)
+{
+	u32 val;
+
+	val = readl(KSEG1ADDR(AR71XX_RESET_BASE + AR933X_RESET_REG_BOOTSTRAP));
+	if (val & AR933X_BOOTSTRAP_REF_CLK_40)
+		return 40000000;
+	else
+		return 25000000;
+}
+
+int get_serial_clock(void)
+{
+	return ar933x_get_xtal();
+}
+
+int get_clocks(void)
+{
+	u32 val, xtal, pll, div;
+
+	xtal = ar933x_get_xtal();
+	val = readl(KSEG1ADDR(AR71XX_PLL_BASE + AR933X_PLL_CPU_CONFIG_REG));
+
+	/* VCOOUT = XTAL * DIV_INT */
+	div = (val >> AR933X_PLL_CPU_CONFIG_REFDIV_SHIFT)
+			& AR933X_PLL_CPU_CONFIG_REFDIV_MASK;
+	pll = xtal / div;
+
+	/* PLLOUT = VCOOUT * (1/2^OUTDIV) */
+	div = (val >> AR933X_PLL_CPU_CONFIG_DIVINT_SHIFT)
+			& AR933X_PLL_CPU_CONFIG_DIVINT_MASK;
+	pll *= div;
+	div = (val >> AR933X_PLL_CPU_CONFIG_OUTDIV_SHIFT)
+			& AR933X_PLL_CPU_CONFIG_OUTDIV_MASK;
+	if (!div)
+		div = 1;
+	pll >>= div;
+
+	val = readl(KSEG1ADDR(AR71XX_PLL_BASE + AR933X_PLL_CLOCK_CTRL_REG));
+
+	/* CPU_CLK = PLLOUT / CPU_POST_DIV */
+	div = ((val >> AR933X_PLL_CLOCK_CTRL_CPU_DIV_SHIFT)
+			& AR933X_PLL_CLOCK_CTRL_CPU_DIV_MASK) + 1;
+	gd->cpu_clk = pll / div;
+
+	/* DDR_CLK = PLLOUT / DDR_POST_DIV */
+	div = ((val >> AR933X_PLL_CLOCK_CTRL_DDR_DIV_SHIFT)
+			& AR933X_PLL_CLOCK_CTRL_DDR_DIV_MASK) + 1;
+	gd->mem_clk = pll / div;
+
+	/* AHB_CLK = PLLOUT / AHB_POST_DIV */
+	div = ((val >> AR933X_PLL_CLOCK_CTRL_AHB_DIV_SHIFT)
+			& AR933X_PLL_CLOCK_CTRL_AHB_DIV_MASK) + 1;
+	gd->bus_clk = pll / div;
+
+	return 0;
+}
+
+ulong get_bus_freq(ulong dummy)
+{
+	if (!gd->bus_clk)
+		get_clocks();
+	return gd->bus_clk;
+}
+
+ulong get_ddr_freq(ulong dummy)
+{
+	if (!gd->mem_clk)
+		get_clocks();
+	return gd->mem_clk;
+}
diff --git a/arch/mips/mach-ath79/ar933x/cpu.c b/arch/mips/mach-ath79/ar933x/cpu.c
new file mode 100644
index 0000000..e734dac
--- /dev/null
+++ b/arch/mips/mach-ath79/ar933x/cpu.c
@@ -0,0 +1,32 @@
+/*
+ * (C) Copyright 2015
+ * Wills Wang, <wills.wang@live.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/addrspace.h>
+#include <asm/types.h>
+#include <asm/arch/ar71xx_regs.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int arch_cpu_init(void)
+{
+	u32 val;
+
+	/*
+	 * Set GPIO10 (UART_SO) as output and enable UART,
+	 * BIT(15) in GPIO_FUNCTION_1 register must be written with 1
+	 */
+	val = readl(KSEG1ADDR(AR71XX_GPIO_BASE + AR71XX_GPIO_REG_OE));
+	val |= BIT(10);
+	writel(val, KSEG1ADDR(AR71XX_GPIO_BASE + AR71XX_GPIO_REG_OE));
+
+	val = readl(KSEG1ADDR(AR71XX_GPIO_BASE + AR71XX_GPIO_REG_FUNC));
+	val |= (AR933X_GPIO_FUNC_UART_EN | BIT(15));
+	writel(val, KSEG1ADDR(AR71XX_GPIO_BASE + AR71XX_GPIO_REG_FUNC));
+	return 0;
+}
diff --git a/arch/mips/mach-ath79/ar933x/ddr_tap.S b/arch/mips/mach-ath79/ar933x/ddr_tap.S
new file mode 100644
index 0000000..18c57de
--- /dev/null
+++ b/arch/mips/mach-ath79/ar933x/ddr_tap.S
@@ -0,0 +1,268 @@
+/*
+ * (C) Copyright 2015
+ * Wills Wang, <wills.wang@live.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <config.h>
+#include <asm/asm.h>
+#include <asm/regdef.h>
+#include <asm/mipsregs.h>
+#include <asm/addrspace.h>
+#include <asm/arch/ar71xx_regs.h>
+
+#define DRAM_K0(x)      KSEG0ADDR(x)
+#define DRAM_K1(x)      KSEG1ADDR(x)
+
+	.text
+	.set noreorder
+
+LEAF(ddr_tap_init)
+	/* Tap settings for the DDR */
+	li      t0, 0xffffffff
+	li      t1, DRAM_K0(0x500000)
+	sw      t0, 0x0(t1)
+	sw      t0, 0x4(t1)
+	sw      t0, 0x8(t1)
+	sw      t0, 0xc(t1)
+	nop
+	nop
+
+	li      t8, DRAM_K1(0x2000)
+	li      t0, 0x00
+	li      t1, 0x100
+0:
+	andi    t2, t0, 0x03
+	li      t3, 0x00
+	bne     t2, t3,1f
+	 nop
+	li      t9, 0x00000000
+	sw      t9, 0x0(t8)
+	b       2f
+	 nop
+1:
+	li      t3, 0x01
+	bne     t2, t3,1f
+	 nop
+	li      t9, 0x0000ffff
+	sw      t9, 0x0(t8)
+	b       2f
+	 nop
+1:
+	li      t3, 0x02
+	bne     t2, t3,1f
+	 nop
+	li      t9, 0xffff0000
+	sw      t9, 0x0(t8)
+	b       2f
+	 nop
+1:
+	li      t3, 0x03
+	bne     t2, t3,2f
+	 nop
+	li      t9, 0xffffffff
+	sw      t9, 0x0(t8)
+2:
+	andi    t2, t0, 0x0c
+	li      t3, 0x00
+	bne     t2, t3,1f
+	 nop
+	li      t9, 0x00000000
+	sw      t9, 0x4(t8)
+	b       2f
+	 nop
+1:
+	li      t3, 0x04
+	bne     t2, t3,1f
+	 nop
+	li      t9, 0x0000ffff
+	sw      t9, 0x4(t8)
+	b       2f
+	 nop
+1:
+	li      t3, 0x08
+	bne     t2, t3,1f
+	 nop
+	li      t9, 0xffff0000
+	sw      t9, 0x4(t8)
+	b       2f
+	 nop
+1:
+	li      t3, 0x0c
+	bne     t2, t3,2f
+	li      t9, 0xffffffff
+	sw      t9, 0x4(t8)
+2:
+	andi    t2, t0, 0x30
+	li      t3, 0x00
+	bne     t2, t3,1f
+	 nop
+	li      t9, 0x00000000
+	sw      t9, 0x8(t8)
+	b       2f
+	 nop
+1:
+	li      t3, 0x10
+	bne     t2, t3,1f
+	 nop
+	li      t9, 0x0000ffff
+	sw      t9, 0x8(t8)
+	b       2f
+	 nop
+1:
+	li      t3, 0x20
+	bne     t2, t3,1f
+	 nop
+	li      t9, 0xffff0000
+	sw      t9, 0x8(t8)
+	b       2f
+	 nop
+1:
+	li      t3, 0x30
+	bne     t2, t3,2f
+	 nop
+	li      t9, 0xffffffff
+	sw      t9, 0x8(t8)
+2:
+	andi    t2, t0, 0xc0
+	li      t3, 0x00
+	bne     t2, t3,1f
+	 nop
+	li      t9, 0x00000000
+	sw      t9, 0xc(t8)
+	b       2f
+	 nop
+1:
+	li      t3, 0x40
+	bne     t2, t3,1f
+	 nop
+	li      t9, 0x0000ffff
+	sw      t9, 0xc(t8)
+	b       2f
+	 nop
+1:
+	li      t3, 0x80
+	bne     t2, t3,1f
+	 nop
+	li      t9, 0xffff0000
+	sw      t9, 0xc(t8)
+	b       2f
+	 nop
+1:
+	li      t3, 0xc0
+	bne     t2, t3,2f
+	 nop
+	li      t9, 0xffffffff
+	sw      t9, 0xc(t8)
+2:
+	addiu   t0, t0, 0x1
+	addiu   t8, t8, 0x10
+	bne     t0, t1, 0b
+	 nop
+
+	li      a0, DRAM_K1(0x2000)     # Start address
+	li      a1, DRAM_K0(0x2000)     # Start address of the pattern 200
+	li      a2, DRAM_K0(0x3000)     # End Address of the pattern 220
+	li      t0, KSEG1ADDR(AR71XX_DDR_CTRL_BASE)
+	lw      a3, AR71XX_DDR_REG_TAP_CTRL0(t0)
+	nop                             # loading default tap value
+	ori     t0, a3, 0x0
+
+	/* $t1=1 indicates increasing tap value, 0 = decreasing */
+	li      t1, 0x1
+0:
+	li      t7, 0x2
+	li      t8, KSEG1ADDR(AR71XX_DDR_CTRL_BASE)
+	sw      t0, AR71XX_DDR_REG_TAP_CTRL0(t8)
+	nop
+	sw      t0, AR71XX_DDR_REG_TAP_CTRL1(t8)
+	nop
+
+	/* t0 stores current tap setting under test
+	   t1 indicates increment or decrement of tap */
+1:
+	ori     t2, a0, 0x0
+	ori     t3, a1, 0x0
+	ori     t4, a2, 0x0
+2:
+	lw      t5, 0x0(t2)             # upper and lower limit detection
+	lw      t6, 0x0(t3)
+	bne     t5, t6, 3f
+	 nop
+	addiu   t2, t2, 0x4
+	addiu   t3, t3, 0x4
+	bne     t3, t4, 2b
+	 nop
+	addiu   t7, t7, -1
+	bnez    t7, 1b
+	 nop
+
+	bnez    t1, 2f                  # increment tap if t1 = 1
+	 nop
+	bnez    t0, 1f                  # tap=0 works so low limit=0,
+	 nop                            # else decrement tap value
+
+	li      t8, DRAM_K0(0x500000)   # assigning lower limit = 0
+	sw      t0, 0x0(t8)
+	nop
+	add     t9, t9, t0              # adding lower limit to upper limit
+	b       4f                      # used to calc mid value
+	 nop
+1:
+	addiu   t0, t0 , -1             # decrement and loading this new tap
+	b       0b
+	 nop
+2:
+	addiu   t0, t0, 0x1
+	xori    v1, t0, 0x20            # limiting upper limit to 0x20
+	bnez    v1, 0b
+	 nop
+	b       1f
+	 nop
+3:
+	bnez    t1, 1f                  # t1=1 fail for upper limit
+	 nop                             # t1=0 fail for lower limit
+	addiu   t0, t0, 0x1
+	 nop
+	li      t8, DRAM_K0(0x500000)   # storing lower limit
+	sw      t0, 0x0(t8)
+	nop
+	add     t9, t9, t0              # adding lower limit and upper limit
+	b       4f
+	 nop
+1:
+	addiu   t0, t0, -1
+	li      t1, 0x0                 # changing to decreasing tap mode
+	li      t8, DRAM_K0(0x500000)   # storing upper limit
+	sw      t0, 0x4(t8)
+	nop
+	ori     t9, t0, 0x0
+	ori     t0, a3, 0x0             # loading default tap value
+	b       0b
+	 nop
+
+	/* calculating mid value of the tap, storing DQS0, DQS1 in
+	   0x80500008, 0x8050000c resp */
+4:
+	li      t7, 0x2
+	div     t9, t7
+	nop
+	mfhi    t6
+	mflo    t5
+	add     t6, t6, t5
+	li      t8, DRAM_K0(0x500000)
+	sw      t5, 0x8(t8)
+	nop
+	sw      t6, 0xc(t8)
+	nop
+	li      t8, KSEG1ADDR(AR71XX_DDR_CTRL_BASE)
+	sw      t5, AR71XX_DDR_REG_TAP_CTRL0(t8)
+	nop
+	sw      t6, AR71XX_DDR_REG_TAP_CTRL1(t8)
+	nop
+
+	nop
+	jr ra
+	 nop
+	END(ddr_tap_init)
diff --git a/arch/mips/mach-ath79/ar933x/lowlevel_init.S b/arch/mips/mach-ath79/ar933x/lowlevel_init.S
new file mode 100644
index 0000000..72509ca
--- /dev/null
+++ b/arch/mips/mach-ath79/ar933x/lowlevel_init.S
@@ -0,0 +1,460 @@
+/*
+ * (C) Copyright 2015
+ * Wills Wang, <wills.wang@live.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <config.h>
+#include <asm/asm.h>
+#include <asm/regdef.h>
+#include <asm/mipsregs.h>
+#include <asm/addrspace.h>
+#include <asm/arch/ar71xx_regs.h>
+
+#define SET_BIT(val, bit)   ((val) | (1 << (bit)))
+#define SET_PLL_PD(val)     SET_BIT(val, 30)
+#define AHB_DIV_TO_4(val)   SET_BIT(SET_BIT(val, 15), 16)
+#define PLL_BYPASS(val)     SET_BIT(val, 2)
+
+#define MK_PLL_CONF(divint, refdiv, range, outdiv) \
+     (((0x3F & divint) << 10) | \
+     ((0x1F & refdiv) << 16) | \
+     ((0x1 & range)   << 21) | \
+     ((0x7 & outdiv)  << 23) )
+
+#define MK_CLK_CNTL(cpudiv, ddrdiv, ahbdiv) \
+    (((0x3 & (cpudiv - 1)) << 5)  | \
+    ((0x3 & (ddrdiv - 1)) << 10) | \
+    ((0x3 & (ahbdiv - 1)) << 15) )
+
+/*
+ * PLL_CPU_CONFIG_VAL
+ *
+ * Bit30 is set (CPU_PLLPWD = 1 -> power down control for CPU PLL)
+ * After PLL configuration we need to clear this bit
+ *
+ * Values written into CPU PLL Configuration (CPU_PLL_CONFIG)
+ *
+ * bits 10..15  (6bit)  DIV_INT (Integer part of the DIV to CPU PLL)
+ *                      =>  32  (0x20)  VCOOUT = XTAL * DIV_INT
+ * bits 16..20  (5bit)  REFDIV  (Reference clock divider)
+ *                      =>  1   (0x1)   [Must start at values 1]
+ * bits 21      (1bit)  RANGE   (VCO frequency range of the CPU PLL)
+ *                      =>  0   (0x0)   [Doesn't impact clock values]
+ * bits 23..25  (3bit)  OUTDIV  (Ratio between VCO and PLL output)
+ *                      =>  1   (0x1)   [0 is illegal!]
+ *                              PLLOUT = VCOOUT * (1/2^OUTDIV)
+ */
+/* DIV_INT=32 (25MHz*32/2=400MHz), REFDIV=1, RANGE=0, OUTDIV=1 */
+#define PLL_CPU_CONFIG_VAL_40M  MK_PLL_CONF(20, 1, 0, 1)
+/* DIV_INT=20 (40MHz*20/2=400MHz), REFDIV=1, RANGE=0, OUTDIV=1 */
+#define PLL_CPU_CONFIG_VAL_25M  MK_PLL_CONF(32, 1, 0, 1)
+
+/*
+ * PLL_CLK_CONTROL_VAL
+ *
+ * In PLL_CLK_CONTROL_VAL bit 2 is set (BYPASS = 1 -> bypass PLL)
+ * After PLL configuration we need to clear this bit
+ *
+ * Values written into CPU Clock Control Register CLOCK_CONTROL
+ *
+ * bits 2       (1bit)  BYPASS (Bypass PLL. This defaults to 1 for test.
+ *                      Software must enable the CPU PLL for normal and
+ *                      then set this bit to 0)
+ * bits 5..6    (2bit)  CPU_POST_DIV    =>  0   (DEFAULT, Ratio = 1)
+ *                      CPU_CLK = PLLOUT / CPU_POST_DIV
+ * bits 10..11  (2bit)  DDR_POST_DIV    =>  0   (DEFAULT, Ratio = 1)
+ *                      DDR_CLK = PLLOUT / DDR_POST_DIV
+ * bits 15..16  (2bit)  AHB_POST_DIV    =>  1   (DEFAULT, Ratio = 2)
+ *                      AHB_CLK = PLLOUT / AHB_POST_DIV
+ *
+ */
+#define PLL_CLK_CONTROL_VAL MK_CLK_CNTL(1, 1, 2)
+
+    .text
+    .set noreorder
+
+LEAF(lowlevel_init)
+   /* These three WLAN_RESET will avoid original issue */
+    li      t3, 0x03
+1:
+    li      t0, KSEG1ADDR(AR71XX_RESET_BASE)
+    lw      t1, AR933X_RESET_REG_RESET_MODULE(t0)
+    ori     t1, t1, 0x0800
+    sw      t1, AR933X_RESET_REG_RESET_MODULE(t0)
+    nop
+    lw      t1, AR933X_RESET_REG_RESET_MODULE(t0)
+    li      t2, 0xfffff7ff
+    and     t1, t1, t2
+    sw      t1, AR933X_RESET_REG_RESET_MODULE(t0)
+    nop
+    addi    t3, t3, -1
+    bnez    t3, 1b
+     nop
+
+    li      t2, 0x20
+2:
+    beqz    t2, 1b
+     nop
+    addi    t2, t2, -1
+    lw      t5, AR933X_RESET_REG_BOOTSTRAP(t0)
+    andi    t1, t5, 0x10
+    bnez    t1, 2b
+     nop
+
+    li      t1, 0x02110E
+    sw      t1, AR933X_RESET_REG_BOOTSTRAP(t0)
+    nop
+
+    /* RTC Force Wake */
+    li      t0, KSEG1ADDR(AR933X_RTC_BASE)
+    li      t1, 0x03
+    sw      t1, AR933X_RTC_REG_FORCE_WAKE(t0)
+    nop
+    nop
+
+    /* RTC Reset */
+    li      t1, 0x00
+    sw      t1, AR933X_RTC_REG_RESET(t0)
+    nop
+    nop
+
+    li      t1, 0x01
+    sw      t1, AR933X_RTC_REG_RESET(t0)
+    nop
+    nop
+
+    /* Wait for RTC in on state */
+1:
+    lw      t1, AR933X_RTC_REG_STATUS(t0)
+    andi    t1, t1, 0x02
+    beqz    t1, 1b
+     nop
+
+    /* Program ki/kd */
+    li      t0, KSEG1ADDR(AR933X_SRIF_BASE)
+    andi    t1, t5, 0x01            # t5 BOOT_STRAP
+    bnez    t1, 1f
+     nop
+    li      t1, 0x19e82f01
+    b       2f
+     nop
+1:
+    li      t1, 0x18e82f01
+2:
+    sw      t1, AR933X_SRIF_DDR_DPLL2_REG(t0)
+
+    /* Program phase shift */
+    lw      t1, AR933X_SRIF_DDR_DPLL3_REG(t0)
+    li      t2, 0xc07fffff
+    and     t1, t1, t2
+    li      t2, 0x800000            # meas_at_txon
+    or      t1, t1, t2
+    sw      t1, AR933X_SRIF_DDR_DPLL3_REG(t0)
+    nop
+
+    /* Max AHB Master wait time out ... */
+    li      t0, KSEG1ADDR(AR71XX_DDR_CTRL_BASE)
+    li      t1, 0xfffff
+    sw      t1, AR933X_DDR_REG_TIMEOUT_MAX(t0)
+    nop
+
+    /* in some cases, the SoC doesn't start with higher clock on AHB */
+    li      t0, KSEG1ADDR(AR71XX_PLL_BASE)
+    li      t1, AHB_DIV_TO_4(PLL_BYPASS(PLL_CLK_CONTROL_VAL))
+    sw      t1, AR933X_PLL_CLOCK_CTRL_REG(t0)
+    nop
+
+    /* Set SETTLE_TIME in CPU PLL */
+    andi    t1, t5, 0x01            # t5 BOOT_STRAP
+    bnez    t1, 1f
+     nop
+    li      t1, 0x0352
+    b       2f
+     nop
+1:
+    li      t1, 0x0550
+2:
+    sw      t1, AR71XX_PLL_REG_SEC_CONFIG(t0)
+    nop
+
+    /* Set nint, frac, refdiv, outdiv, range according to xtal */
+0:
+    andi    t1, t5, 0x01            # t5 BOOT_STRAP
+    bnez    t1, 1f
+     nop
+    li      t1, SET_PLL_PD(PLL_CPU_CONFIG_VAL_25M)
+    b       2f
+     nop
+1:
+    li      t1, SET_PLL_PD(PLL_CPU_CONFIG_VAL_40M)
+2:
+    sw      t1, AR933X_PLL_CPU_CONFIG_REG(t0)
+    nop
+1:
+    lw      t1, AR933X_PLL_CPU_CONFIG_REG(t0)
+    li      t2, 0x80000000
+    and     t1, t1, t2
+    bnez    t1, 1b
+     nop
+
+    /* Put frac bit19:10 configuration */
+    li      t1, 0x1003E8
+    sw      t1, AR71XX_PLL_REG_ETH0_INT_CLOCK(t0)
+    nop
+
+    /* Clear PLL power down bit in CPU PLL configuration */
+    andi    t1, t5, 0x01            # t5 BOOT_STRAP
+    bnez    t1, 1f
+     nop
+    li      t1, PLL_CPU_CONFIG_VAL_25M
+    b       2f
+     nop
+1:
+    li      t1, PLL_CPU_CONFIG_VAL_40M
+2:
+    sw      t1, AR933X_PLL_CPU_CONFIG_REG(t0)
+    nop
+
+    /* Wait for PLL update -> bit 31 in CPU_PLL_CONFIG should be 0 */
+1:
+    lw      t1, AR933X_PLL_CPU_CONFIG_REG(t0)
+    li      t2, 0x80000000
+    and     t1, t1, t2
+    bnez    t1, 1b
+     nop
+
+    /* Confirm DDR PLL lock */
+    li      t3, 100
+    li      t4, 0
+
+2:
+    addi    t4, t4, 1
+    bgt     t4, t3, 0b
+     nop
+
+    li      t3, 5
+3:
+    /* Clear do_meas */
+    li      t0, KSEG1ADDR(AR933X_SRIF_BASE)
+    lw      t1, AR933X_SRIF_DDR_DPLL3_REG(t0)
+    li      t2, 0xBFFFFFFF
+    and     t1, t1, t2
+    sw      t1, AR933X_SRIF_DDR_DPLL3_REG(t0)
+    nop
+
+    li      t2, 10
+1:
+    subu    t2, t2, 1
+    bnez    t2, 1b
+     nop
+
+    /* Set do_meas */
+    li      t2, 0x40000000
+    or      t1, t1, t2
+    sw      t1, AR933X_SRIF_DDR_DPLL3_REG(t0)
+    nop
+
+    /* Check meas_done */
+1:
+    lw      t1, AR933X_SRIF_DDR_DPLL4_REG(t0)
+    andi    t1, t1, 0x8
+    beqz    t1, 1b
+     nop
+
+    lw      t1, AR933X_SRIF_DDR_DPLL3_REG(t0)
+    li      t2, 0x007FFFF8
+    and     t1, t1, t2
+    srl     t1, t1, 3
+    li      t2, 0x4000
+    bgt     t1, t2, 2b
+     nop
+    addi    t3, t3, -1
+    bnez    t3, 3b
+     nop
+
+    /* clear PLL bypass (bit 2) in CPU CLOCK CONTROL register */
+    li      t0, KSEG1ADDR(AR71XX_PLL_BASE)
+    li      t1, PLL_CLK_CONTROL_VAL
+    sw      t1, AR933X_PLL_CLOCK_CTRL_REG(t0)
+    nop
+
+    li      t0, KSEG1ADDR(AR71XX_DDR_CTRL_BASE)
+    li      t1, 0x7fbc8cd0
+    sw      t1, AR71XX_DDR_REG_CONFIG(t0)
+
+    li      t1, 0x9dd0e6a8
+    sw      t1, AR71XX_DDR_REG_CONFIG2(t0)
+
+    andi    t1, t5, 0x2000          # t5 BOOT_STRAP
+    beqz    t1, 3f
+     nop
+
+    /* Enable DDR2 */
+    li      t1, 0xA59
+    sw      t1, AR933X_DDR_REG_DDR2_CONFIG(t0)
+
+    /* Precharge All */
+    li      t1, 0x08
+    sw      t1, AR71XX_DDR_REG_CONTROL(t0)
+
+    /* Disable High Temperature Self-Refresh Rate */
+    li      t1, 0x00
+    sw      t1, AR933X_DDR_REG_EMR2(t0)
+
+    /* Extended Mode Register 2 Set (EMR2S) */
+    li      t1, 0x10
+    sw      t1, AR71XX_DDR_REG_CONTROL(t0)
+
+    li      t1, 0x00
+    sw      t1, AR933X_DDR_REG_EMR3(t0)
+
+    /* Extended Mode Register 3 Set (EMR3S) */
+    li      t1, 0x20
+    sw      t1, AR71XX_DDR_REG_CONTROL(t0)
+
+    /* Enable DLL */
+    li      t1, 0x00
+    sw      t1, AR71XX_DDR_REG_EMR(t0)
+
+    /* Extended Mode Register Set (EMRS) */
+    li      t1, 0x02
+    sw      t1, AR71XX_DDR_REG_CONTROL(t0)
+
+    /* Reset DLL */
+    li      t1, 0x100
+    sw      t1, AR71XX_DDR_REG_MODE(t0)
+
+    /* Mode Register Set (MRS) */
+    li      t1, 0x01
+    sw      t1, AR71XX_DDR_REG_CONTROL(t0)
+
+    /* Precharge All */
+    li      t1, 0x08
+    sw      t1, AR71XX_DDR_REG_CONTROL(t0)
+
+    /* Auto Refresh */
+    li      t1, 0x04
+    sw      t1, AR71XX_DDR_REG_CONTROL(t0)
+
+    /* Auto Refresh */
+    li      t1, 0x04
+    sw      t1, AR71XX_DDR_REG_CONTROL(t0)
+
+    /* Write recovery (WR) 6 clock, CAS Latency 3, Burst Length 8 */
+    li      t1, 0xa33
+    sw      t1, AR71XX_DDR_REG_MODE(t0)
+
+    /* Mode Register Set (MRS) */
+    li      t1, 0x01
+    sw      t1, AR71XX_DDR_REG_CONTROL(t0)
+
+    /* E7,E8,E9 equal to 1(Enable OCD defaults), Enable DLL,
+       Reduced Drive Strength */
+    li      t1, 0x382
+    sw      t1, AR71XX_DDR_REG_EMR(t0)
+
+    /* Extended Mode Register Set (EMRS) */
+    li      t1, 0x02
+    sw      t1, AR71XX_DDR_REG_CONTROL(t0)
+
+    /* E7,E8,E9 equal to 0(OCD exit), Enable DLL,
+       Reduced Drive Strength */
+    li      t1, 0x402
+    sw      t1, AR71XX_DDR_REG_EMR(t0)
+
+    /* Extended Mode Register Set (EMRS) */
+    li      t1, 0x02
+    sw      t1, AR71XX_DDR_REG_CONTROL(t0)
+
+    /* Refresh control. Bit 14 is enable. Bits<13:0> Refresh time */
+    andi    t1, t5, 0x01            # t5 BOOT_STRAP
+    bnez    t1, 1f
+     nop
+    li      t1, 0x4186
+    b       2f
+     nop
+1:
+    li      t1, 0x4270
+2:
+    sw      t1, AR71XX_DDR_REG_REFRESH(t0)
+
+    /* DQS 0 Tap Control (needs tuning) */
+    li      t1, 0x08
+    sw      t1, AR71XX_DDR_REG_TAP_CTRL0(t0)
+
+    /* DQS 1 Tap Control (needs tuning) */
+    li      t1, 0x09
+    sw      t1, AR71XX_DDR_REG_TAP_CTRL1(t0)
+
+    /* For 16-bit DDR */
+    li      t1, 0xff
+    sw      t1, AR71XX_DDR_REG_RD_CYCLE(t0)
+    nop
+    b       4f
+     nop
+
+    /* DDR1 config */
+3:
+    /* Precharge All */
+    li      t1, 0x08
+    sw      t1, AR71XX_DDR_REG_CONTROL(t0)
+
+    /* Write Mode Word */
+    li      t1, 0x133
+    sw      t1, AR71XX_DDR_REG_MODE(t0)
+
+    /* Forces an MRS update cycle in DDR */
+    li      t1, 0x01
+    sw      t1, AR71XX_DDR_REG_CONTROL(t0)
+
+    /* Enable DLL, High drive strength from DDR */
+    li      t1, 0x02
+    sw      t1, AR71XX_DDR_REG_EMR(t0)
+
+    /* Write Extended Mode Word of DDR */
+    li      t1, 0x02
+    sw      t1, AR71XX_DDR_REG_CONTROL(t0)
+
+    /* Precharge All */
+    li      t1, 0x08
+    sw      t1, AR71XX_DDR_REG_CONTROL(t0)
+
+    /* DLL out of reset, CAS Latency 3 */
+    li      t1, 0x33
+    sw      t1, AR71XX_DDR_REG_MODE(t0)
+
+    /* Write mode word */
+    li      t1, 0x01
+    sw      t1, AR71XX_DDR_REG_CONTROL(t0)
+
+    /* Refresh control. Bit 14 is enable. Bits<13:0> Refresh time */
+    andi    t1, t5, 0x01            # t5 BOOT_STRAP
+    bnez    t1, 1f
+     nop
+    li      t1, 0x4270
+    b       2f
+     nop
+1:
+    li      t1, 0x4186
+2:
+    sw      t1, AR71XX_DDR_REG_REFRESH(t0)
+
+    /* DQS 0 Tap Control (needs tuning) */
+    li      t1, 0x08
+    sw      t1, AR71XX_DDR_REG_TAP_CTRL0(t0)
+
+    /* DQS 1 Tap Control (needs tuning) */
+    li      t1, 0x09
+    sw      t1, AR71XX_DDR_REG_TAP_CTRL1(t0)
+
+    /* For 16-bit DDR */
+    li      t1, 0xff
+    sw      t1, AR71XX_DDR_REG_RD_CYCLE(t0)
+
+4:
+    nop
+    jr ra
+     nop
+    END(lowlevel_init)
diff --git a/arch/mips/mach-ath79/cpu.c b/arch/mips/mach-ath79/cpu.c
new file mode 100644
index 0000000..681127c
--- /dev/null
+++ b/arch/mips/mach-ath79/cpu.c
@@ -0,0 +1,171 @@
+/*
+ * (C) Copyright 2015
+ * Wills Wang, <wills.wang@live.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/addrspace.h>
+#include <asm/types.h>
+#include <asm/arch/ath79.h>
+#include <asm/arch/ar71xx_regs.h>
+
+int print_cpuinfo(void)
+{
+	enum ath79_soc_type soc = ATH79_SOC_UNKNOWN;
+	char *chip = "????";
+	u32 id, major, minor;
+	u32 rev = 0;
+	u32 ver = 1;
+
+	id = readl(KSEG1ADDR(AR71XX_RESET_BASE + AR71XX_RESET_REG_REV_ID));
+	major = id & REV_ID_MAJOR_MASK;
+
+	switch (major) {
+	case REV_ID_MAJOR_AR71XX:
+		minor = id & AR71XX_REV_ID_MINOR_MASK;
+		rev = id >> AR71XX_REV_ID_REVISION_SHIFT;
+		rev &= AR71XX_REV_ID_REVISION_MASK;
+		switch (minor) {
+		case AR71XX_REV_ID_MINOR_AR7130:
+			soc = ATH79_SOC_AR7130;
+			chip = "7130";
+			break;
+
+		case AR71XX_REV_ID_MINOR_AR7141:
+			soc = ATH79_SOC_AR7141;
+			chip = "7141";
+			break;
+
+		case AR71XX_REV_ID_MINOR_AR7161:
+			soc = ATH79_SOC_AR7161;
+			chip = "7161";
+			break;
+		}
+		break;
+
+	case REV_ID_MAJOR_AR7240:
+		soc = ATH79_SOC_AR7240;
+		chip = "7240";
+		rev = id & AR724X_REV_ID_REVISION_MASK;
+		break;
+
+	case REV_ID_MAJOR_AR7241:
+		soc = ATH79_SOC_AR7241;
+		chip = "7241";
+		rev = id & AR724X_REV_ID_REVISION_MASK;
+		break;
+
+	case REV_ID_MAJOR_AR7242:
+		soc = ATH79_SOC_AR7242;
+		chip = "7242";
+		rev = id & AR724X_REV_ID_REVISION_MASK;
+		break;
+
+	case REV_ID_MAJOR_AR913X:
+		minor = id & AR913X_REV_ID_MINOR_MASK;
+		rev = id >> AR913X_REV_ID_REVISION_SHIFT;
+		rev &= AR913X_REV_ID_REVISION_MASK;
+		switch (minor) {
+		case AR913X_REV_ID_MINOR_AR9130:
+			soc = ATH79_SOC_AR9130;
+			chip = "9130";
+			break;
+
+		case AR913X_REV_ID_MINOR_AR9132:
+			soc = ATH79_SOC_AR9132;
+			chip = "9132";
+			break;
+		}
+		break;
+
+	case REV_ID_MAJOR_AR9330:
+		soc = ATH79_SOC_AR9330;
+		chip = "9330";
+		rev = id & AR933X_REV_ID_REVISION_MASK;
+		break;
+
+	case REV_ID_MAJOR_AR9331:
+		soc = ATH79_SOC_AR9331;
+		chip = "9331";
+		rev = id & AR933X_REV_ID_REVISION_MASK;
+		break;
+
+	case REV_ID_MAJOR_AR9341:
+		soc = ATH79_SOC_AR9341;
+		chip = "9341";
+		rev = id & AR934X_REV_ID_REVISION_MASK;
+		break;
+
+	case REV_ID_MAJOR_AR9342:
+		soc = ATH79_SOC_AR9342;
+		chip = "9342";
+		rev = id & AR934X_REV_ID_REVISION_MASK;
+		break;
+
+	case REV_ID_MAJOR_AR9344:
+		soc = ATH79_SOC_AR9344;
+		chip = "9344";
+		rev = id & AR934X_REV_ID_REVISION_MASK;
+		break;
+
+	case REV_ID_MAJOR_QCA9533_V2:
+		ver = 2;
+		/* drop through */
+
+	case REV_ID_MAJOR_QCA9533:
+		soc = ATH79_SOC_QCA9533;
+		chip = "9533";
+		rev = id & QCA953X_REV_ID_REVISION_MASK;
+		break;
+
+	case REV_ID_MAJOR_QCA9556:
+		soc = ATH79_SOC_QCA9556;
+		chip = "9556";
+		rev = id & QCA955X_REV_ID_REVISION_MASK;
+		break;
+
+	case REV_ID_MAJOR_QCA9558:
+		soc = ATH79_SOC_QCA9558;
+		chip = "9558";
+		rev = id & QCA955X_REV_ID_REVISION_MASK;
+		break;
+
+	case REV_ID_MAJOR_TP9343:
+		soc = ATH79_SOC_TP9343;
+		chip = "9343";
+		rev = id & QCA956X_REV_ID_REVISION_MASK;
+		break;
+
+	case REV_ID_MAJOR_QCA9561:
+		soc = ATH79_SOC_QCA9561;
+		chip = "9561";
+		rev = id & QCA956X_REV_ID_REVISION_MASK;
+		break;
+	}
+
+	gd->arch.soc = soc;
+	gd->arch.rev = rev;
+	gd->arch.id = id;
+	puts("SoC:   ");
+	switch (soc) {
+	case ATH79_SOC_QCA9533:
+	case ATH79_SOC_QCA9556:
+	case ATH79_SOC_QCA9558:
+	case ATH79_SOC_QCA9561:
+		printf("Qualcomm Atheros QCA%s ver %u rev %u\n", chip,
+		       ver, rev);
+		break;
+	case ATH79_SOC_TP9343:
+		printf("Qualcomm Atheros TP%s rev %u\n", chip, rev);
+		break;
+	case ATH79_SOC_UNKNOWN:
+		printf("ATH79: unknown SoC, id:0x%08x", id);
+	default:
+		printf("Atheros AR%s rev %u\n", chip, rev);
+	}
+
+	return 0;
+}
diff --git a/arch/mips/mach-ath79/dram.c b/arch/mips/mach-ath79/dram.c
new file mode 100644
index 0000000..42539dc
--- /dev/null
+++ b/arch/mips/mach-ath79/dram.c
@@ -0,0 +1,27 @@
+/*
+ * (C) Copyright 2015
+ * Wills Wang, <wills.wang@live.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/addrspace.h>
+#include <asm/arch/ddr.h>
+
+phys_size_t initdram(int board_type)
+{
+	uint8_t *addr, *p;
+	int i;
+
+	ddr_tap_init();
+	addr = (uint8_t *)KSEG1;
+	*addr = 0x77;
+	for (i = 0, p = addr; p < (uint8_t *)KSEG2; i++) {
+		p += 0x1000000;
+		*p = i;
+		if (*addr != 0x77)
+			break;
+	}
+	return (phys_size_t)(p - addr);
+}
diff --git a/arch/mips/mach-ath79/include/mach/ar71xx_regs.h b/arch/mips/mach-ath79/include/mach/ar71xx_regs.h
new file mode 100644
index 0000000..994aeef
--- /dev/null
+++ b/arch/mips/mach-ath79/include/mach/ar71xx_regs.h
@@ -0,0 +1,1144 @@
+/*
+ * Atheros AR71XX/AR724X/AR913X SoC register definitions
+ *
+ * Copyright (C) 2015 Wills Wang, <wills.wang@live.com>
+ * Copyright (C) 2010-2011 Jaiganesh Narayanan <jnarayanan@atheros.com>
+ * Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org>
+ * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef __ASM_MACH_AR71XX_REGS_H
+#define __ASM_MACH_AR71XX_REGS_H
+
+#ifndef __ASSEMBLY__
+#include <linux/bitops.h>
+#else
+#ifndef BIT
+#define BIT(nr)			(1UL << (nr))
+#endif
+#endif
+
+#define AR71XX_APB_BASE		0x18000000
+#define AR71XX_GE0_BASE		0x19000000
+#define AR71XX_GE0_SIZE		0x10000
+#define AR71XX_GE1_BASE		0x1a000000
+#define AR71XX_GE1_SIZE		0x10000
+#define AR71XX_EHCI_BASE	0x1b000000
+#define AR71XX_EHCI_SIZE	0x1000
+#define AR71XX_OHCI_BASE	0x1c000000
+#define AR71XX_OHCI_SIZE	0x1000
+#define AR71XX_SPI_BASE		0x1f000000
+#define AR71XX_SPI_SIZE		0x01000000
+
+#define AR71XX_DDR_CTRL_BASE	(AR71XX_APB_BASE + 0x00000000)
+#define AR71XX_DDR_CTRL_SIZE	0x100
+#define AR71XX_UART_BASE	(AR71XX_APB_BASE + 0x00020000)
+#define AR71XX_UART_SIZE	0x100
+#define AR71XX_USB_CTRL_BASE	(AR71XX_APB_BASE + 0x00030000)
+#define AR71XX_USB_CTRL_SIZE	0x100
+#define AR71XX_GPIO_BASE	(AR71XX_APB_BASE + 0x00040000)
+#define AR71XX_GPIO_SIZE	0x100
+#define AR71XX_PLL_BASE		(AR71XX_APB_BASE + 0x00050000)
+#define AR71XX_PLL_SIZE		0x100
+#define AR71XX_RESET_BASE	(AR71XX_APB_BASE + 0x00060000)
+#define AR71XX_RESET_SIZE	0x100
+#define AR71XX_MII_BASE		(AR71XX_APB_BASE + 0x00070000)
+#define AR71XX_MII_SIZE		0x100
+
+#define AR71XX_PCI_MEM_BASE	0x10000000
+#define AR71XX_PCI_MEM_SIZE	0x07000000
+
+#define AR71XX_PCI_WIN0_OFFS	0x10000000
+#define AR71XX_PCI_WIN1_OFFS	0x11000000
+#define AR71XX_PCI_WIN2_OFFS	0x12000000
+#define AR71XX_PCI_WIN3_OFFS	0x13000000
+#define AR71XX_PCI_WIN4_OFFS	0x14000000
+#define AR71XX_PCI_WIN5_OFFS	0x15000000
+#define AR71XX_PCI_WIN6_OFFS	0x16000000
+#define AR71XX_PCI_WIN7_OFFS	0x07000000
+
+#define AR71XX_PCI_CFG_BASE	\
+	(AR71XX_PCI_MEM_BASE + AR71XX_PCI_WIN7_OFFS + 0x10000)
+#define AR71XX_PCI_CFG_SIZE	0x100
+
+#define AR7240_USB_CTRL_BASE	(AR71XX_APB_BASE + 0x00030000)
+#define AR7240_USB_CTRL_SIZE	0x100
+#define AR7240_OHCI_BASE	0x1b000000
+#define AR7240_OHCI_SIZE	0x1000
+
+#define AR724X_PCI_MEM_BASE	0x10000000
+#define AR724X_PCI_MEM_SIZE	0x04000000
+
+#define AR724X_PCI_CFG_BASE	0x14000000
+#define AR724X_PCI_CFG_SIZE	0x1000
+#define AR724X_PCI_CRP_BASE	(AR71XX_APB_BASE + 0x000c0000)
+#define AR724X_PCI_CRP_SIZE	0x1000
+#define AR724X_PCI_CTRL_BASE	(AR71XX_APB_BASE + 0x000f0000)
+#define AR724X_PCI_CTRL_SIZE	0x100
+
+#define AR724X_EHCI_BASE	0x1b000000
+#define AR724X_EHCI_SIZE	0x1000
+
+#define AR913X_EHCI_BASE	0x1b000000
+#define AR913X_EHCI_SIZE	0x1000
+#define AR913X_WMAC_BASE	(AR71XX_APB_BASE + 0x000C0000)
+#define AR913X_WMAC_SIZE	0x30000
+
+#define AR933X_UART_BASE	(AR71XX_APB_BASE + 0x00020000)
+#define AR933X_UART_SIZE	0x14
+#define AR933X_GMAC_BASE	(AR71XX_APB_BASE + 0x00070000)
+#define AR933X_GMAC_SIZE	0x04
+#define AR933X_WMAC_BASE	(AR71XX_APB_BASE + 0x00100000)
+#define AR933X_WMAC_SIZE	0x20000
+#define AR933X_RTC_BASE		(AR71XX_APB_BASE + 0x00107000)
+#define AR933X_RTC_SIZE		0x1000
+#define AR933X_EHCI_BASE	0x1b000000
+#define AR933X_EHCI_SIZE	0x1000
+#define AR933X_SRIF_BASE	(AR71XX_APB_BASE + 0x00116000)
+#define AR933X_SRIF_SIZE	0x1000
+
+#define AR934X_GMAC_BASE	(AR71XX_APB_BASE + 0x00070000)
+#define AR934X_GMAC_SIZE	0x14
+#define AR934X_WMAC_BASE	(AR71XX_APB_BASE + 0x00100000)
+#define AR934X_WMAC_SIZE	0x20000
+#define AR934X_EHCI_BASE	0x1b000000
+#define AR934X_EHCI_SIZE	0x200
+#define AR934X_NFC_BASE		0x1b000200
+#define AR934X_NFC_SIZE		0xb8
+#define AR934X_SRIF_BASE	(AR71XX_APB_BASE + 0x00116000)
+#define AR934X_SRIF_SIZE	0x1000
+
+#define QCA953X_GMAC_BASE	(AR71XX_APB_BASE + 0x00070000)
+#define QCA953X_GMAC_SIZE	0x14
+#define QCA953X_WMAC_BASE	(AR71XX_APB_BASE + 0x00100000)
+#define QCA953X_WMAC_SIZE	0x20000
+#define QCA953X_EHCI_BASE	0x1b000000
+#define QCA953X_EHCI_SIZE	0x200
+#define QCA953X_SRIF_BASE	(AR71XX_APB_BASE + 0x00116000)
+#define QCA953X_SRIF_SIZE	0x1000
+
+#define QCA953X_PCI_CFG_BASE0	0x14000000
+#define QCA953X_PCI_CTRL_BASE0	(AR71XX_APB_BASE + 0x000f0000)
+#define QCA953X_PCI_CRP_BASE0	(AR71XX_APB_BASE + 0x000c0000)
+#define QCA953X_PCI_MEM_BASE0	0x10000000
+#define QCA953X_PCI_MEM_SIZE	0x02000000
+
+#define QCA955X_PCI_MEM_BASE0	0x10000000
+#define QCA955X_PCI_MEM_BASE1	0x12000000
+#define QCA955X_PCI_MEM_SIZE	0x02000000
+#define QCA955X_PCI_CFG_BASE0	0x14000000
+#define QCA955X_PCI_CFG_BASE1	0x16000000
+#define QCA955X_PCI_CFG_SIZE	0x1000
+#define QCA955X_PCI_CRP_BASE0	(AR71XX_APB_BASE + 0x000c0000)
+#define QCA955X_PCI_CRP_BASE1	(AR71XX_APB_BASE + 0x00250000)
+#define QCA955X_PCI_CRP_SIZE	0x1000
+#define QCA955X_PCI_CTRL_BASE0	(AR71XX_APB_BASE + 0x000f0000)
+#define QCA955X_PCI_CTRL_BASE1	(AR71XX_APB_BASE + 0x00280000)
+#define QCA955X_PCI_CTRL_SIZE	0x100
+
+#define QCA955X_GMAC_BASE	(AR71XX_APB_BASE + 0x00070000)
+#define QCA955X_GMAC_SIZE	0x40
+#define QCA955X_WMAC_BASE	(AR71XX_APB_BASE + 0x00100000)
+#define QCA955X_WMAC_SIZE	0x20000
+#define QCA955X_EHCI0_BASE	0x1b000000
+#define QCA955X_EHCI1_BASE	0x1b400000
+#define QCA955X_EHCI_SIZE	0x1000
+#define QCA955X_NFC_BASE	0x1b800200
+#define QCA955X_NFC_SIZE	0xb8
+
+#define QCA956X_PCI_MEM_BASE1	0x12000000
+#define QCA956X_PCI_MEM_SIZE	0x02000000
+#define QCA956X_PCI_CFG_BASE1	0x16000000
+#define QCA956X_PCI_CFG_SIZE	0x1000
+#define QCA956X_PCI_CRP_BASE1	(AR71XX_APB_BASE + 0x00250000)
+#define QCA956X_PCI_CRP_SIZE	0x1000
+#define QCA956X_PCI_CTRL_BASE1	(AR71XX_APB_BASE + 0x00280000)
+#define QCA956X_PCI_CTRL_SIZE	0x100
+
+#define QCA956X_WMAC_BASE	(AR71XX_APB_BASE + 0x00100000)
+#define QCA956X_WMAC_SIZE	0x20000
+#define QCA956X_EHCI0_BASE	0x1b000000
+#define QCA956X_EHCI1_BASE	0x1b400000
+#define QCA956X_EHCI_SIZE	0x200
+#define QCA956X_GMAC_BASE	(AR71XX_APB_BASE + 0x00070000)
+#define QCA956X_GMAC_SIZE	0x64
+
+#define AR9300_OTP_BASE		0x14000
+#define AR9300_OTP_STATUS	0x15f18
+#define AR9300_OTP_STATUS_TYPE		0x7
+#define AR9300_OTP_STATUS_VALID		0x4
+#define AR9300_OTP_STATUS_ACCESS_BUSY	0x2
+#define AR9300_OTP_STATUS_SM_BUSY	0x1
+#define AR9300_OTP_READ_DATA	0x15f1c
+
+/*
+ * DDR_CTRL block
+ */
+#define AR71XX_DDR_REG_CONFIG		0x00
+#define AR71XX_DDR_REG_CONFIG2		0x04
+#define AR71XX_DDR_REG_MODE		0x08
+#define AR71XX_DDR_REG_EMR		0x0c
+#define AR71XX_DDR_REG_CONTROL		0x10
+#define AR71XX_DDR_REG_REFRESH		0x14
+#define AR71XX_DDR_REG_RD_CYCLE		0x18
+#define AR71XX_DDR_REG_TAP_CTRL0	0x1c
+#define AR71XX_DDR_REG_TAP_CTRL1	0x20
+
+#define AR71XX_DDR_REG_PCI_WIN0		0x7c
+#define AR71XX_DDR_REG_PCI_WIN1		0x80
+#define AR71XX_DDR_REG_PCI_WIN2		0x84
+#define AR71XX_DDR_REG_PCI_WIN3		0x88
+#define AR71XX_DDR_REG_PCI_WIN4		0x8c
+#define AR71XX_DDR_REG_PCI_WIN5		0x90
+#define AR71XX_DDR_REG_PCI_WIN6		0x94
+#define AR71XX_DDR_REG_PCI_WIN7		0x98
+#define AR71XX_DDR_REG_FLUSH_GE0	0x9c
+#define AR71XX_DDR_REG_FLUSH_GE1	0xa0
+#define AR71XX_DDR_REG_FLUSH_USB	0xa4
+#define AR71XX_DDR_REG_FLUSH_PCI	0xa8
+
+#define AR724X_DDR_REG_FLUSH_GE0	0x7c
+#define AR724X_DDR_REG_FLUSH_GE1	0x80
+#define AR724X_DDR_REG_FLUSH_USB	0x84
+#define AR724X_DDR_REG_FLUSH_PCIE	0x88
+
+#define AR913X_DDR_REG_FLUSH_GE0	0x7c
+#define AR913X_DDR_REG_FLUSH_GE1	0x80
+#define AR913X_DDR_REG_FLUSH_USB	0x84
+#define AR913X_DDR_REG_FLUSH_WMAC	0x88
+
+#define AR933X_DDR_REG_FLUSH_GE0	0x7c
+#define AR933X_DDR_REG_FLUSH_GE1	0x80
+#define AR933X_DDR_REG_FLUSH_USB	0x84
+#define AR933X_DDR_REG_FLUSH_WMAC	0x88
+#define AR933X_DDR_REG_DDR2_CONFIG	0x8c
+#define AR933X_DDR_REG_EMR2		0x90
+#define AR933X_DDR_REG_EMR3		0x94
+#define AR933X_DDR_REG_BURST		0x98
+#define AR933X_DDR_REG_TIMEOUT_MAX	0x9c
+#define AR933X_DDR_REG_TIMEOUT_CNT	0x9c
+#define AR933X_DDR_REG_TIMEOUT_ADDR	0x9c
+
+#define AR934X_DDR_REG_FLUSH_GE0	0x9c
+#define AR934X_DDR_REG_FLUSH_GE1	0xa0
+#define AR934X_DDR_REG_FLUSH_USB	0xa4
+#define AR934X_DDR_REG_FLUSH_PCIE	0xa8
+#define AR934X_DDR_REG_FLUSH_WMAC	0xac
+
+#define QCA953X_DDR_REG_FLUSH_GE0	0x9c
+#define QCA953X_DDR_REG_FLUSH_GE1	0xa0
+#define QCA953X_DDR_REG_FLUSH_USB	0xa4
+#define QCA953X_DDR_REG_FLUSH_PCIE	0xa8
+#define QCA953X_DDR_REG_FLUSH_WMAC	0xac
+
+/*
+ * PLL block
+ */
+#define AR71XX_PLL_REG_CPU_CONFIG	0x00
+#define AR71XX_PLL_REG_SEC_CONFIG	0x04
+#define AR71XX_PLL_REG_ETH0_INT_CLOCK	0x10
+#define AR71XX_PLL_REG_ETH1_INT_CLOCK	0x14
+
+#define AR71XX_PLL_DIV_SHIFT		3
+#define AR71XX_PLL_DIV_MASK		0x1f
+#define AR71XX_CPU_DIV_SHIFT		16
+#define AR71XX_CPU_DIV_MASK		0x3
+#define AR71XX_DDR_DIV_SHIFT		18
+#define AR71XX_DDR_DIV_MASK		0x3
+#define AR71XX_AHB_DIV_SHIFT		20
+#define AR71XX_AHB_DIV_MASK		0x7
+
+#define AR71XX_ETH0_PLL_SHIFT		17
+#define AR71XX_ETH1_PLL_SHIFT		19
+
+#define AR724X_PLL_REG_CPU_CONFIG	0x00
+#define AR724X_PLL_REG_PCIE_CONFIG	0x18
+
+#define AR724X_PLL_DIV_SHIFT		0
+#define AR724X_PLL_DIV_MASK		0x3ff
+#define AR724X_PLL_REF_DIV_SHIFT	10
+#define AR724X_PLL_REF_DIV_MASK		0xf
+#define AR724X_AHB_DIV_SHIFT		19
+#define AR724X_AHB_DIV_MASK		0x1
+#define AR724X_DDR_DIV_SHIFT		22
+#define AR724X_DDR_DIV_MASK		0x3
+
+#define AR7242_PLL_REG_ETH0_INT_CLOCK	0x2c
+
+#define AR913X_PLL_REG_CPU_CONFIG	0x00
+#define AR913X_PLL_REG_ETH_CONFIG	0x04
+#define AR913X_PLL_REG_ETH0_INT_CLOCK	0x14
+#define AR913X_PLL_REG_ETH1_INT_CLOCK	0x18
+
+#define AR913X_PLL_DIV_SHIFT		0
+#define AR913X_PLL_DIV_MASK		0x3ff
+#define AR913X_DDR_DIV_SHIFT		22
+#define AR913X_DDR_DIV_MASK		0x3
+#define AR913X_AHB_DIV_SHIFT		19
+#define AR913X_AHB_DIV_MASK		0x1
+
+#define AR913X_ETH0_PLL_SHIFT		20
+#define AR913X_ETH1_PLL_SHIFT		22
+
+#define AR933X_PLL_CPU_CONFIG_REG	0x00
+#define AR933X_PLL_CLOCK_CTRL_REG	0x08
+
+#define AR933X_PLL_CPU_CONFIG_DIVINT_SHIFT	10
+#define AR933X_PLL_CPU_CONFIG_DIVINT_MASK	0x3f
+#define AR933X_PLL_CPU_CONFIG_REFDIV_SHIFT	16
+#define AR933X_PLL_CPU_CONFIG_REFDIV_MASK	0x1f
+#define AR933X_PLL_CPU_CONFIG_OUTDIV_SHIFT	23
+#define AR933X_PLL_CPU_CONFIG_OUTDIV_MASK	0x7
+
+#define AR933X_PLL_CLOCK_CTRL_BYPASS		BIT(2)
+#define AR933X_PLL_CLOCK_CTRL_CPU_DIV_SHIFT	5
+#define AR933X_PLL_CLOCK_CTRL_CPU_DIV_MASK	0x3
+#define AR933X_PLL_CLOCK_CTRL_DDR_DIV_SHIFT	10
+#define AR933X_PLL_CLOCK_CTRL_DDR_DIV_MASK	0x3
+#define AR933X_PLL_CLOCK_CTRL_AHB_DIV_SHIFT	15
+#define AR933X_PLL_CLOCK_CTRL_AHB_DIV_MASK	0x7
+
+#define AR934X_PLL_CPU_CONFIG_REG		0x00
+#define AR934X_PLL_DDR_CONFIG_REG		0x04
+#define AR934X_PLL_CPU_DDR_CLK_CTRL_REG		0x08
+#define AR934X_PLL_SWITCH_CLOCK_CONTROL_REG	0x24
+#define AR934X_PLL_ETH_XMII_CONTROL_REG		0x2c
+
+#define AR934X_PLL_CPU_CONFIG_NFRAC_SHIFT	0
+#define AR934X_PLL_CPU_CONFIG_NFRAC_MASK	0x3f
+#define AR934X_PLL_CPU_CONFIG_NINT_SHIFT	6
+#define AR934X_PLL_CPU_CONFIG_NINT_MASK		0x3f
+#define AR934X_PLL_CPU_CONFIG_REFDIV_SHIFT	12
+#define AR934X_PLL_CPU_CONFIG_REFDIV_MASK	0x1f
+#define AR934X_PLL_CPU_CONFIG_OUTDIV_SHIFT	19
+#define AR934X_PLL_CPU_CONFIG_OUTDIV_MASK	0x3
+
+#define AR934X_PLL_DDR_CONFIG_NFRAC_SHIFT	0
+#define AR934X_PLL_DDR_CONFIG_NFRAC_MASK	0x3ff
+#define AR934X_PLL_DDR_CONFIG_NINT_SHIFT	10
+#define AR934X_PLL_DDR_CONFIG_NINT_MASK		0x3f
+#define AR934X_PLL_DDR_CONFIG_REFDIV_SHIFT	16
+#define AR934X_PLL_DDR_CONFIG_REFDIV_MASK	0x1f
+#define AR934X_PLL_DDR_CONFIG_OUTDIV_SHIFT	23
+#define AR934X_PLL_DDR_CONFIG_OUTDIV_MASK	0x7
+
+#define AR934X_PLL_CPU_DDR_CLK_CTRL_CPU_PLL_BYPASS	BIT(2)
+#define AR934X_PLL_CPU_DDR_CLK_CTRL_DDR_PLL_BYPASS	BIT(3)
+#define AR934X_PLL_CPU_DDR_CLK_CTRL_AHB_PLL_BYPASS	BIT(4)
+#define AR934X_PLL_CPU_DDR_CLK_CTRL_CPU_POST_DIV_SHIFT	5
+#define AR934X_PLL_CPU_DDR_CLK_CTRL_CPU_POST_DIV_MASK	0x1f
+#define AR934X_PLL_CPU_DDR_CLK_CTRL_DDR_POST_DIV_SHIFT	10
+#define AR934X_PLL_CPU_DDR_CLK_CTRL_DDR_POST_DIV_MASK	0x1f
+#define AR934X_PLL_CPU_DDR_CLK_CTRL_AHB_POST_DIV_SHIFT	15
+#define AR934X_PLL_CPU_DDR_CLK_CTRL_AHB_POST_DIV_MASK	0x1f
+#define AR934X_PLL_CPU_DDR_CLK_CTRL_CPUCLK_FROM_CPUPLL	BIT(20)
+#define AR934X_PLL_CPU_DDR_CLK_CTRL_DDRCLK_FROM_DDRPLL	BIT(21)
+#define AR934X_PLL_CPU_DDR_CLK_CTRL_AHBCLK_FROM_DDRPLL	BIT(24)
+
+#define AR934X_PLL_SWITCH_CLOCK_CONTROL_MDIO_CLK_SEL	BIT(6)
+
+#define QCA953X_PLL_CPU_CONFIG_REG		0x00
+#define QCA953X_PLL_DDR_CONFIG_REG		0x04
+#define QCA953X_PLL_CLK_CTRL_REG		0x08
+#define QCA953X_PLL_SWITCH_CLOCK_CONTROL_REG	0x24
+#define QCA953X_PLL_ETH_XMII_CONTROL_REG	0x2c
+#define QCA953X_PLL_ETH_SGMII_CONTROL_REG	0x48
+
+#define QCA953X_PLL_CPU_CONFIG_NFRAC_SHIFT	0
+#define QCA953X_PLL_CPU_CONFIG_NFRAC_MASK	0x3f
+#define QCA953X_PLL_CPU_CONFIG_NINT_SHIFT	6
+#define QCA953X_PLL_CPU_CONFIG_NINT_MASK	0x3f
+#define QCA953X_PLL_CPU_CONFIG_REFDIV_SHIFT	12
+#define QCA953X_PLL_CPU_CONFIG_REFDIV_MASK	0x1f
+#define QCA953X_PLL_CPU_CONFIG_OUTDIV_SHIFT	19
+#define QCA953X_PLL_CPU_CONFIG_OUTDIV_MASK	0x7
+
+#define QCA953X_PLL_DDR_CONFIG_NFRAC_SHIFT	0
+#define QCA953X_PLL_DDR_CONFIG_NFRAC_MASK	0x3ff
+#define QCA953X_PLL_DDR_CONFIG_NINT_SHIFT	10
+#define QCA953X_PLL_DDR_CONFIG_NINT_MASK	0x3f
+#define QCA953X_PLL_DDR_CONFIG_REFDIV_SHIFT	16
+#define QCA953X_PLL_DDR_CONFIG_REFDIV_MASK	0x1f
+#define QCA953X_PLL_DDR_CONFIG_OUTDIV_SHIFT	23
+#define QCA953X_PLL_DDR_CONFIG_OUTDIV_MASK	0x7
+
+#define QCA953X_PLL_CLK_CTRL_CPU_PLL_BYPASS		BIT(2)
+#define QCA953X_PLL_CLK_CTRL_DDR_PLL_BYPASS		BIT(3)
+#define QCA953X_PLL_CLK_CTRL_AHB_PLL_BYPASS		BIT(4)
+#define QCA953X_PLL_CLK_CTRL_CPU_POST_DIV_SHIFT		5
+#define QCA953X_PLL_CLK_CTRL_CPU_POST_DIV_MASK		0x1f
+#define QCA953X_PLL_CLK_CTRL_DDR_POST_DIV_SHIFT		10
+#define QCA953X_PLL_CLK_CTRL_DDR_POST_DIV_MASK		0x1f
+#define QCA953X_PLL_CLK_CTRL_AHB_POST_DIV_SHIFT		15
+#define QCA953X_PLL_CLK_CTRL_AHB_POST_DIV_MASK		0x1f
+#define QCA953X_PLL_CLK_CTRL_CPUCLK_FROM_CPUPLL		BIT(20)
+#define QCA953X_PLL_CLK_CTRL_DDRCLK_FROM_DDRPLL		BIT(21)
+#define QCA953X_PLL_CLK_CTRL_AHBCLK_FROM_DDRPLL		BIT(24)
+
+#define QCA955X_PLL_CPU_CONFIG_REG		0x00
+#define QCA955X_PLL_DDR_CONFIG_REG		0x04
+#define QCA955X_PLL_CLK_CTRL_REG		0x08
+#define QCA955X_PLL_ETH_XMII_CONTROL_REG	0x28
+#define QCA955X_PLL_ETH_SGMII_CONTROL_REG	0x48
+
+#define QCA955X_PLL_CPU_CONFIG_NFRAC_SHIFT	0
+#define QCA955X_PLL_CPU_CONFIG_NFRAC_MASK	0x3f
+#define QCA955X_PLL_CPU_CONFIG_NINT_SHIFT	6
+#define QCA955X_PLL_CPU_CONFIG_NINT_MASK	0x3f
+#define QCA955X_PLL_CPU_CONFIG_REFDIV_SHIFT	12
+#define QCA955X_PLL_CPU_CONFIG_REFDIV_MASK	0x1f
+#define QCA955X_PLL_CPU_CONFIG_OUTDIV_SHIFT	19
+#define QCA955X_PLL_CPU_CONFIG_OUTDIV_MASK	0x3
+
+#define QCA955X_PLL_DDR_CONFIG_NFRAC_SHIFT	0
+#define QCA955X_PLL_DDR_CONFIG_NFRAC_MASK	0x3ff
+#define QCA955X_PLL_DDR_CONFIG_NINT_SHIFT	10
+#define QCA955X_PLL_DDR_CONFIG_NINT_MASK	0x3f
+#define QCA955X_PLL_DDR_CONFIG_REFDIV_SHIFT	16
+#define QCA955X_PLL_DDR_CONFIG_REFDIV_MASK	0x1f
+#define QCA955X_PLL_DDR_CONFIG_OUTDIV_SHIFT	23
+#define QCA955X_PLL_DDR_CONFIG_OUTDIV_MASK	0x7
+
+#define QCA955X_PLL_CLK_CTRL_CPU_PLL_BYPASS		BIT(2)
+#define QCA955X_PLL_CLK_CTRL_DDR_PLL_BYPASS		BIT(3)
+#define QCA955X_PLL_CLK_CTRL_AHB_PLL_BYPASS		BIT(4)
+#define QCA955X_PLL_CLK_CTRL_CPU_POST_DIV_SHIFT		5
+#define QCA955X_PLL_CLK_CTRL_CPU_POST_DIV_MASK		0x1f
+#define QCA955X_PLL_CLK_CTRL_DDR_POST_DIV_SHIFT		10
+#define QCA955X_PLL_CLK_CTRL_DDR_POST_DIV_MASK		0x1f
+#define QCA955X_PLL_CLK_CTRL_AHB_POST_DIV_SHIFT		15
+#define QCA955X_PLL_CLK_CTRL_AHB_POST_DIV_MASK		0x1f
+#define QCA955X_PLL_CLK_CTRL_CPUCLK_FROM_CPUPLL		BIT(20)
+#define QCA955X_PLL_CLK_CTRL_DDRCLK_FROM_DDRPLL		BIT(21)
+#define QCA955X_PLL_CLK_CTRL_AHBCLK_FROM_DDRPLL		BIT(24)
+
+#define QCA956X_PLL_CPU_CONFIG_REG			0x00
+#define QCA956X_PLL_CPU_CONFIG1_REG			0x04
+#define QCA956X_PLL_DDR_CONFIG_REG			0x08
+#define QCA956X_PLL_DDR_CONFIG1_REG			0x0c
+#define QCA956X_PLL_CLK_CTRL_REG			0x10
+
+#define QCA956X_PLL_CPU_CONFIG_REFDIV_SHIFT		12
+#define QCA956X_PLL_CPU_CONFIG_REFDIV_MASK		0x1f
+#define QCA956X_PLL_CPU_CONFIG_OUTDIV_SHIFT		19
+#define QCA956X_PLL_CPU_CONFIG_OUTDIV_MASK		0x7
+
+#define QCA956X_PLL_CPU_CONFIG1_NFRAC_L_SHIFT		0
+#define QCA956X_PLL_CPU_CONFIG1_NFRAC_L_MASK		0x1f
+#define QCA956X_PLL_CPU_CONFIG1_NFRAC_H_SHIFT		5
+#define QCA956X_PLL_CPU_CONFIG1_NFRAC_H_MASK		0x3fff
+#define QCA956X_PLL_CPU_CONFIG1_NINT_SHIFT		18
+#define QCA956X_PLL_CPU_CONFIG1_NINT_MASK		0x1ff
+
+#define QCA956X_PLL_DDR_CONFIG_REFDIV_SHIFT		16
+#define QCA956X_PLL_DDR_CONFIG_REFDIV_MASK		0x1f
+#define QCA956X_PLL_DDR_CONFIG_OUTDIV_SHIFT		23
+#define QCA956X_PLL_DDR_CONFIG_OUTDIV_MASK		0x7
+
+#define QCA956X_PLL_DDR_CONFIG1_NFRAC_L_SHIFT		0
+#define QCA956X_PLL_DDR_CONFIG1_NFRAC_L_MASK		0x1f
+#define QCA956X_PLL_DDR_CONFIG1_NFRAC_H_SHIFT		5
+#define QCA956X_PLL_DDR_CONFIG1_NFRAC_H_MASK		0x3fff
+#define QCA956X_PLL_DDR_CONFIG1_NINT_SHIFT		18
+#define QCA956X_PLL_DDR_CONFIG1_NINT_MASK		0x1ff
+
+#define QCA956X_PLL_CLK_CTRL_CPU_PLL_BYPASS		BIT(2)
+#define QCA956X_PLL_CLK_CTRL_DDR_PLL_BYPASS		BIT(3)
+#define QCA956X_PLL_CLK_CTRL_AHB_PLL_BYPASS		BIT(4)
+#define QCA956X_PLL_CLK_CTRL_CPU_POST_DIV_SHIFT		5
+#define QCA956X_PLL_CLK_CTRL_CPU_POST_DIV_MASK		0x1f
+#define QCA956X_PLL_CLK_CTRL_DDR_POST_DIV_SHIFT		10
+#define QCA956X_PLL_CLK_CTRL_DDR_POST_DIV_MASK		0x1f
+#define QCA956X_PLL_CLK_CTRL_AHB_POST_DIV_SHIFT		15
+#define QCA956X_PLL_CLK_CTRL_AHB_POST_DIV_MASK		0x1f
+#define QCA956X_PLL_CLK_CTRL_CPU_DDRCLK_FROM_DDRPLL	BIT(20)
+#define QCA956X_PLL_CLK_CTRL_CPU_DDRCLK_FROM_CPUPLL	BIT(21)
+#define QCA956X_PLL_CLK_CTRL_AHBCLK_FROM_DDRPLL		BIT(24)
+
+/*
+ * USB_CONFIG block
+ */
+#define AR71XX_USB_CTRL_REG_FLADJ	0x00
+#define AR71XX_USB_CTRL_REG_CONFIG	0x04
+
+/*
+ * RESET block
+ */
+#define AR71XX_RESET_REG_TIMER			0x00
+#define AR71XX_RESET_REG_TIMER_RELOAD		0x04
+#define AR71XX_RESET_REG_WDOG_CTRL		0x08
+#define AR71XX_RESET_REG_WDOG			0x0c
+#define AR71XX_RESET_REG_MISC_INT_STATUS	0x10
+#define AR71XX_RESET_REG_MISC_INT_ENABLE	0x14
+#define AR71XX_RESET_REG_PCI_INT_STATUS		0x18
+#define AR71XX_RESET_REG_PCI_INT_ENABLE		0x1c
+#define AR71XX_RESET_REG_GLOBAL_INT_STATUS	0x20
+#define AR71XX_RESET_REG_RESET_MODULE		0x24
+#define AR71XX_RESET_REG_PERFC_CTRL		0x2c
+#define AR71XX_RESET_REG_PERFC0			0x30
+#define AR71XX_RESET_REG_PERFC1			0x34
+#define AR71XX_RESET_REG_REV_ID			0x90
+
+#define AR913X_RESET_REG_GLOBAL_INT_STATUS	0x18
+#define AR913X_RESET_REG_RESET_MODULE		0x1c
+#define AR913X_RESET_REG_PERF_CTRL		0x20
+#define AR913X_RESET_REG_PERFC0			0x24
+#define AR913X_RESET_REG_PERFC1			0x28
+
+#define AR724X_RESET_REG_RESET_MODULE		0x1c
+
+#define AR933X_RESET_REG_RESET_MODULE		0x1c
+#define AR933X_RESET_REG_BOOTSTRAP		0xac
+
+#define AR934X_RESET_REG_RESET_MODULE		0x1c
+#define AR934X_RESET_REG_BOOTSTRAP		0xb0
+#define AR934X_RESET_REG_PCIE_WMAC_INT_STATUS	0xac
+
+#define QCA953X_RESET_REG_RESET_MODULE		0x1c
+#define QCA953X_RESET_REG_BOOTSTRAP		0xb0
+#define QCA953X_RESET_REG_PCIE_WMAC_INT_STATUS	0xac
+
+#define QCA955X_RESET_REG_RESET_MODULE		0x1c
+#define QCA955X_RESET_REG_BOOTSTRAP		0xb0
+#define QCA955X_RESET_REG_EXT_INT_STATUS	0xac
+
+#define QCA956X_RESET_REG_RESET_MODULE		0x1c
+#define QCA956X_RESET_REG_BOOTSTRAP		0xb0
+#define QCA956X_RESET_REG_EXT_INT_STATUS	0xac
+
+#define MISC_INT_MIPS_SI_TIMERINT_MASK	BIT(28)
+#define MISC_INT_ETHSW			BIT(12)
+#define MISC_INT_TIMER4			BIT(10)
+#define MISC_INT_TIMER3			BIT(9)
+#define MISC_INT_TIMER2			BIT(8)
+#define MISC_INT_DMA			BIT(7)
+#define MISC_INT_OHCI			BIT(6)
+#define MISC_INT_PERFC			BIT(5)
+#define MISC_INT_WDOG			BIT(4)
+#define MISC_INT_UART			BIT(3)
+#define MISC_INT_GPIO			BIT(2)
+#define MISC_INT_ERROR			BIT(1)
+#define MISC_INT_TIMER			BIT(0)
+
+#define AR71XX_RESET_EXTERNAL		BIT(28)
+#define AR71XX_RESET_FULL_CHIP		BIT(24)
+#define AR71XX_RESET_CPU_NMI		BIT(21)
+#define AR71XX_RESET_CPU_COLD		BIT(20)
+#define AR71XX_RESET_DMA		BIT(19)
+#define AR71XX_RESET_SLIC		BIT(18)
+#define AR71XX_RESET_STEREO		BIT(17)
+#define AR71XX_RESET_DDR		BIT(16)
+#define AR71XX_RESET_GE1_MAC		BIT(13)
+#define AR71XX_RESET_GE1_PHY		BIT(12)
+#define AR71XX_RESET_USBSUS_OVERRIDE	BIT(10)
+#define AR71XX_RESET_GE0_MAC		BIT(9)
+#define AR71XX_RESET_GE0_PHY		BIT(8)
+#define AR71XX_RESET_USB_OHCI_DLL	BIT(6)
+#define AR71XX_RESET_USB_HOST		BIT(5)
+#define AR71XX_RESET_USB_PHY		BIT(4)
+#define AR71XX_RESET_PCI_BUS		BIT(1)
+#define AR71XX_RESET_PCI_CORE		BIT(0)
+
+#define AR7240_RESET_USB_HOST		BIT(5)
+#define AR7240_RESET_OHCI_DLL		BIT(3)
+
+#define AR724X_RESET_GE1_MDIO		BIT(23)
+#define AR724X_RESET_GE0_MDIO		BIT(22)
+#define AR724X_RESET_PCIE_PHY_SERIAL	BIT(10)
+#define AR724X_RESET_PCIE_PHY		BIT(7)
+#define AR724X_RESET_PCIE		BIT(6)
+#define AR724X_RESET_USB_HOST		BIT(5)
+#define AR724X_RESET_USB_PHY		BIT(4)
+#define AR724X_RESET_USBSUS_OVERRIDE	BIT(3)
+
+#define AR913X_RESET_AMBA2WMAC		BIT(22)
+#define AR913X_RESET_USBSUS_OVERRIDE	BIT(10)
+#define AR913X_RESET_USB_HOST		BIT(5)
+#define AR913X_RESET_USB_PHY		BIT(4)
+
+#define AR933X_RESET_GE1_MDIO		BIT(23)
+#define AR933X_RESET_GE0_MDIO		BIT(22)
+#define AR933X_RESET_GE1_MAC		BIT(13)
+#define AR933X_RESET_WMAC		BIT(11)
+#define AR933X_RESET_GE0_MAC		BIT(9)
+#define AR933X_RESET_USB_HOST		BIT(5)
+#define AR933X_RESET_USB_PHY		BIT(4)
+#define AR933X_RESET_USBSUS_OVERRIDE	BIT(3)
+
+#define AR934X_RESET_HOST		BIT(31)
+#define AR934X_RESET_SLIC		BIT(30)
+#define AR934X_RESET_HDMA		BIT(29)
+#define AR934X_RESET_EXTERNAL		BIT(28)
+#define AR934X_RESET_RTC		BIT(27)
+#define AR934X_RESET_PCIE_EP_INT	BIT(26)
+#define AR934X_RESET_CHKSUM_ACC		BIT(25)
+#define AR934X_RESET_FULL_CHIP		BIT(24)
+#define AR934X_RESET_GE1_MDIO		BIT(23)
+#define AR934X_RESET_GE0_MDIO		BIT(22)
+#define AR934X_RESET_CPU_NMI		BIT(21)
+#define AR934X_RESET_CPU_COLD		BIT(20)
+#define AR934X_RESET_HOST_RESET_INT	BIT(19)
+#define AR934X_RESET_PCIE_EP		BIT(18)
+#define AR934X_RESET_UART1		BIT(17)
+#define AR934X_RESET_DDR		BIT(16)
+#define AR934X_RESET_USB_PHY_PLL_PWD_EXT BIT(15)
+#define AR934X_RESET_NANDF		BIT(14)
+#define AR934X_RESET_GE1_MAC		BIT(13)
+#define AR934X_RESET_ETH_SWITCH_ANALOG	BIT(12)
+#define AR934X_RESET_USB_PHY_ANALOG	BIT(11)
+#define AR934X_RESET_HOST_DMA_INT	BIT(10)
+#define AR934X_RESET_GE0_MAC		BIT(9)
+#define AR934X_RESET_ETH_SWITCH		BIT(8)
+#define AR934X_RESET_PCIE_PHY		BIT(7)
+#define AR934X_RESET_PCIE		BIT(6)
+#define AR934X_RESET_USB_HOST		BIT(5)
+#define AR934X_RESET_USB_PHY		BIT(4)
+#define AR934X_RESET_USBSUS_OVERRIDE	BIT(3)
+#define AR934X_RESET_LUT		BIT(2)
+#define AR934X_RESET_MBOX		BIT(1)
+#define AR934X_RESET_I2S		BIT(0)
+
+#define QCA953X_RESET_USB_EXT_PWR	BIT(29)
+#define QCA953X_RESET_EXTERNAL		BIT(28)
+#define QCA953X_RESET_RTC		BIT(27)
+#define QCA953X_RESET_FULL_CHIP		BIT(24)
+#define QCA953X_RESET_GE1_MDIO		BIT(23)
+#define QCA953X_RESET_GE0_MDIO		BIT(22)
+#define QCA953X_RESET_CPU_NMI		BIT(21)
+#define QCA953X_RESET_CPU_COLD		BIT(20)
+#define QCA953X_RESET_DDR		BIT(16)
+#define QCA953X_RESET_USB_PHY_PLL_PWD_EXT BIT(15)
+#define QCA953X_RESET_GE1_MAC		BIT(13)
+#define QCA953X_RESET_ETH_SWITCH_ANALOG	BIT(12)
+#define QCA953X_RESET_USB_PHY_ANALOG	BIT(11)
+#define QCA953X_RESET_GE0_MAC		BIT(9)
+#define QCA953X_RESET_ETH_SWITCH	BIT(8)
+#define QCA953X_RESET_PCIE_PHY		BIT(7)
+#define QCA953X_RESET_PCIE		BIT(6)
+#define QCA953X_RESET_USB_HOST		BIT(5)
+#define QCA953X_RESET_USB_PHY		BIT(4)
+#define QCA953X_RESET_USBSUS_OVERRIDE	BIT(3)
+
+#define QCA955X_RESET_HOST		BIT(31)
+#define QCA955X_RESET_SLIC		BIT(30)
+#define QCA955X_RESET_HDMA		BIT(29)
+#define QCA955X_RESET_EXTERNAL		BIT(28)
+#define QCA955X_RESET_RTC		BIT(27)
+#define QCA955X_RESET_PCIE_EP_INT	BIT(26)
+#define QCA955X_RESET_CHKSUM_ACC	BIT(25)
+#define QCA955X_RESET_FULL_CHIP		BIT(24)
+#define QCA955X_RESET_GE1_MDIO		BIT(23)
+#define QCA955X_RESET_GE0_MDIO		BIT(22)
+#define QCA955X_RESET_CPU_NMI		BIT(21)
+#define QCA955X_RESET_CPU_COLD		BIT(20)
+#define QCA955X_RESET_HOST_RESET_INT	BIT(19)
+#define QCA955X_RESET_PCIE_EP		BIT(18)
+#define QCA955X_RESET_UART1		BIT(17)
+#define QCA955X_RESET_DDR		BIT(16)
+#define QCA955X_RESET_USB_PHY_PLL_PWD_EXT BIT(15)
+#define QCA955X_RESET_NANDF		BIT(14)
+#define QCA955X_RESET_GE1_MAC		BIT(13)
+#define QCA955X_RESET_SGMII_ANALOG	BIT(12)
+#define QCA955X_RESET_USB_PHY_ANALOG	BIT(11)
+#define QCA955X_RESET_HOST_DMA_INT	BIT(10)
+#define QCA955X_RESET_GE0_MAC		BIT(9)
+#define QCA955X_RESET_SGMII		BIT(8)
+#define QCA955X_RESET_PCIE_PHY		BIT(7)
+#define QCA955X_RESET_PCIE		BIT(6)
+#define QCA955X_RESET_USB_HOST		BIT(5)
+#define QCA955X_RESET_USB_PHY		BIT(4)
+#define QCA955X_RESET_USBSUS_OVERRIDE	BIT(3)
+#define QCA955X_RESET_LUT		BIT(2)
+#define QCA955X_RESET_MBOX		BIT(1)
+#define QCA955X_RESET_I2S		BIT(0)
+
+#define AR933X_BOOTSTRAP_MDIO_GPIO_EN	BIT(18)
+#define AR933X_BOOTSTRAP_EEPBUSY	BIT(4)
+#define AR933X_BOOTSTRAP_REF_CLK_40	BIT(0)
+
+#define AR934X_BOOTSTRAP_SW_OPTION8	BIT(23)
+#define AR934X_BOOTSTRAP_SW_OPTION7	BIT(22)
+#define AR934X_BOOTSTRAP_SW_OPTION6	BIT(21)
+#define AR934X_BOOTSTRAP_SW_OPTION5	BIT(20)
+#define AR934X_BOOTSTRAP_SW_OPTION4	BIT(19)
+#define AR934X_BOOTSTRAP_SW_OPTION3	BIT(18)
+#define AR934X_BOOTSTRAP_SW_OPTION2	BIT(17)
+#define AR934X_BOOTSTRAP_SW_OPTION1	BIT(16)
+#define AR934X_BOOTSTRAP_USB_MODE_DEVICE BIT(7)
+#define AR934X_BOOTSTRAP_PCIE_RC	BIT(6)
+#define AR934X_BOOTSTRAP_EJTAG_MODE	BIT(5)
+#define AR934X_BOOTSTRAP_REF_CLK_40	BIT(4)
+#define AR934X_BOOTSTRAP_BOOT_FROM_SPI	BIT(2)
+#define AR934X_BOOTSTRAP_SDRAM_DISABLED BIT(1)
+#define AR934X_BOOTSTRAP_DDR1		BIT(0)
+
+#define QCA953X_BOOTSTRAP_SW_OPTION2	BIT(12)
+#define QCA953X_BOOTSTRAP_SW_OPTION1	BIT(11)
+#define QCA953X_BOOTSTRAP_EJTAG_MODE	BIT(5)
+#define QCA953X_BOOTSTRAP_REF_CLK_40	BIT(4)
+#define QCA953X_BOOTSTRAP_SDRAM_DISABLED BIT(1)
+#define QCA953X_BOOTSTRAP_DDR1		BIT(0)
+
+#define QCA955X_BOOTSTRAP_REF_CLK_40	BIT(4)
+
+#define QCA956X_BOOTSTRAP_REF_CLK_40	BIT(2)
+
+#define AR934X_PCIE_WMAC_INT_WMAC_MISC		BIT(0)
+#define AR934X_PCIE_WMAC_INT_WMAC_TX		BIT(1)
+#define AR934X_PCIE_WMAC_INT_WMAC_RXLP		BIT(2)
+#define AR934X_PCIE_WMAC_INT_WMAC_RXHP		BIT(3)
+#define AR934X_PCIE_WMAC_INT_PCIE_RC		BIT(4)
+#define AR934X_PCIE_WMAC_INT_PCIE_RC0		BIT(5)
+#define AR934X_PCIE_WMAC_INT_PCIE_RC1		BIT(6)
+#define AR934X_PCIE_WMAC_INT_PCIE_RC2		BIT(7)
+#define AR934X_PCIE_WMAC_INT_PCIE_RC3		BIT(8)
+#define AR934X_PCIE_WMAC_INT_WMAC_ALL \
+	(AR934X_PCIE_WMAC_INT_WMAC_MISC | AR934X_PCIE_WMAC_INT_WMAC_TX | \
+	 AR934X_PCIE_WMAC_INT_WMAC_RXLP | AR934X_PCIE_WMAC_INT_WMAC_RXHP)
+
+#define AR934X_PCIE_WMAC_INT_PCIE_ALL \
+	(AR934X_PCIE_WMAC_INT_PCIE_RC | AR934X_PCIE_WMAC_INT_PCIE_RC0 | \
+	 AR934X_PCIE_WMAC_INT_PCIE_RC1 | AR934X_PCIE_WMAC_INT_PCIE_RC2 | \
+	 AR934X_PCIE_WMAC_INT_PCIE_RC3)
+
+#define QCA953X_PCIE_WMAC_INT_WMAC_MISC		BIT(0)
+#define QCA953X_PCIE_WMAC_INT_WMAC_TX		BIT(1)
+#define QCA953X_PCIE_WMAC_INT_WMAC_RXLP		BIT(2)
+#define QCA953X_PCIE_WMAC_INT_WMAC_RXHP		BIT(3)
+#define QCA953X_PCIE_WMAC_INT_PCIE_RC		BIT(4)
+#define QCA953X_PCIE_WMAC_INT_PCIE_RC0		BIT(5)
+#define QCA953X_PCIE_WMAC_INT_PCIE_RC1		BIT(6)
+#define QCA953X_PCIE_WMAC_INT_PCIE_RC2		BIT(7)
+#define QCA953X_PCIE_WMAC_INT_PCIE_RC3		BIT(8)
+#define QCA953X_PCIE_WMAC_INT_WMAC_ALL \
+	(QCA953X_PCIE_WMAC_INT_WMAC_MISC | QCA953X_PCIE_WMAC_INT_WMAC_TX | \
+	 QCA953X_PCIE_WMAC_INT_WMAC_RXLP | QCA953X_PCIE_WMAC_INT_WMAC_RXHP)
+
+#define QCA953X_PCIE_WMAC_INT_PCIE_ALL \
+	(QCA953X_PCIE_WMAC_INT_PCIE_RC | QCA953X_PCIE_WMAC_INT_PCIE_RC0 | \
+	 QCA953X_PCIE_WMAC_INT_PCIE_RC1 | QCA953X_PCIE_WMAC_INT_PCIE_RC2 | \
+	 QCA953X_PCIE_WMAC_INT_PCIE_RC3)
+
+#define QCA955X_EXT_INT_WMAC_MISC		BIT(0)
+#define QCA955X_EXT_INT_WMAC_TX			BIT(1)
+#define QCA955X_EXT_INT_WMAC_RXLP		BIT(2)
+#define QCA955X_EXT_INT_WMAC_RXHP		BIT(3)
+#define QCA955X_EXT_INT_PCIE_RC1		BIT(4)
+#define QCA955X_EXT_INT_PCIE_RC1_INT0		BIT(5)
+#define QCA955X_EXT_INT_PCIE_RC1_INT1		BIT(6)
+#define QCA955X_EXT_INT_PCIE_RC1_INT2		BIT(7)
+#define QCA955X_EXT_INT_PCIE_RC1_INT3		BIT(8)
+#define QCA955X_EXT_INT_PCIE_RC2		BIT(12)
+#define QCA955X_EXT_INT_PCIE_RC2_INT0		BIT(13)
+#define QCA955X_EXT_INT_PCIE_RC2_INT1		BIT(14)
+#define QCA955X_EXT_INT_PCIE_RC2_INT2		BIT(15)
+#define QCA955X_EXT_INT_PCIE_RC2_INT3		BIT(16)
+#define QCA955X_EXT_INT_USB1			BIT(24)
+#define QCA955X_EXT_INT_USB2			BIT(28)
+
+#define QCA955X_EXT_INT_WMAC_ALL \
+	(QCA955X_EXT_INT_WMAC_MISC | QCA955X_EXT_INT_WMAC_TX | \
+	 QCA955X_EXT_INT_WMAC_RXLP | QCA955X_EXT_INT_WMAC_RXHP)
+
+#define QCA955X_EXT_INT_PCIE_RC1_ALL \
+	(QCA955X_EXT_INT_PCIE_RC1 | QCA955X_EXT_INT_PCIE_RC1_INT0 | \
+	 QCA955X_EXT_INT_PCIE_RC1_INT1 | QCA955X_EXT_INT_PCIE_RC1_INT2 | \
+	 QCA955X_EXT_INT_PCIE_RC1_INT3)
+
+#define QCA955X_EXT_INT_PCIE_RC2_ALL \
+	(QCA955X_EXT_INT_PCIE_RC2 | QCA955X_EXT_INT_PCIE_RC2_INT0 | \
+	 QCA955X_EXT_INT_PCIE_RC2_INT1 | QCA955X_EXT_INT_PCIE_RC2_INT2 | \
+	 QCA955X_EXT_INT_PCIE_RC2_INT3)
+
+#define QCA956X_EXT_INT_WMAC_MISC		BIT(0)
+#define QCA956X_EXT_INT_WMAC_TX			BIT(1)
+#define QCA956X_EXT_INT_WMAC_RXLP		BIT(2)
+#define QCA956X_EXT_INT_WMAC_RXHP		BIT(3)
+#define QCA956X_EXT_INT_PCIE_RC1		BIT(4)
+#define QCA956X_EXT_INT_PCIE_RC1_INT0		BIT(5)
+#define QCA956X_EXT_INT_PCIE_RC1_INT1		BIT(6)
+#define QCA956X_EXT_INT_PCIE_RC1_INT2		BIT(7)
+#define QCA956X_EXT_INT_PCIE_RC1_INT3		BIT(8)
+#define QCA956X_EXT_INT_PCIE_RC2		BIT(12)
+#define QCA956X_EXT_INT_PCIE_RC2_INT0		BIT(13)
+#define QCA956X_EXT_INT_PCIE_RC2_INT1		BIT(14)
+#define QCA956X_EXT_INT_PCIE_RC2_INT2		BIT(15)
+#define QCA956X_EXT_INT_PCIE_RC2_INT3		BIT(16)
+#define QCA956X_EXT_INT_USB1			BIT(24)
+#define QCA956X_EXT_INT_USB2			BIT(28)
+
+#define QCA956X_EXT_INT_WMAC_ALL \
+	(QCA956X_EXT_INT_WMAC_MISC | QCA956X_EXT_INT_WMAC_TX | \
+	 QCA956X_EXT_INT_WMAC_RXLP | QCA956X_EXT_INT_WMAC_RXHP)
+
+#define QCA956X_EXT_INT_PCIE_RC1_ALL \
+	(QCA956X_EXT_INT_PCIE_RC1 | QCA956X_EXT_INT_PCIE_RC1_INT0 | \
+	 QCA956X_EXT_INT_PCIE_RC1_INT1 | QCA956X_EXT_INT_PCIE_RC1_INT2 | \
+	 QCA956X_EXT_INT_PCIE_RC1_INT3)
+
+#define QCA956X_EXT_INT_PCIE_RC2_ALL \
+	(QCA956X_EXT_INT_PCIE_RC2 | QCA956X_EXT_INT_PCIE_RC2_INT0 | \
+	 QCA956X_EXT_INT_PCIE_RC2_INT1 | QCA956X_EXT_INT_PCIE_RC2_INT2 | \
+	 QCA956X_EXT_INT_PCIE_RC2_INT3)
+
+#define REV_ID_MAJOR_MASK		0xfff0
+#define REV_ID_MAJOR_AR71XX		0x00a0
+#define REV_ID_MAJOR_AR913X		0x00b0
+#define REV_ID_MAJOR_AR7240		0x00c0
+#define REV_ID_MAJOR_AR7241		0x0100
+#define REV_ID_MAJOR_AR7242		0x1100
+#define REV_ID_MAJOR_AR9330		0x0110
+#define REV_ID_MAJOR_AR9331		0x1110
+#define REV_ID_MAJOR_AR9341		0x0120
+#define REV_ID_MAJOR_AR9342		0x1120
+#define REV_ID_MAJOR_AR9344		0x2120
+#define REV_ID_MAJOR_QCA9533		0x0140
+#define REV_ID_MAJOR_QCA9533_V2		0x0160
+#define REV_ID_MAJOR_QCA9556		0x0130
+#define REV_ID_MAJOR_QCA9558		0x1130
+#define REV_ID_MAJOR_TP9343		0x0150
+#define REV_ID_MAJOR_QCA9561		0x1150
+
+#define AR71XX_REV_ID_MINOR_MASK	0x3
+#define AR71XX_REV_ID_MINOR_AR7130	0x0
+#define AR71XX_REV_ID_MINOR_AR7141	0x1
+#define AR71XX_REV_ID_MINOR_AR7161	0x2
+#define AR71XX_REV_ID_REVISION_MASK	0x3
+#define AR71XX_REV_ID_REVISION_SHIFT	2
+
+#define AR913X_REV_ID_MINOR_MASK	0x3
+#define AR913X_REV_ID_MINOR_AR9130	0x0
+#define AR913X_REV_ID_MINOR_AR9132	0x1
+#define AR913X_REV_ID_REVISION_MASK	0x3
+#define AR913X_REV_ID_REVISION_SHIFT	2
+
+#define AR933X_REV_ID_REVISION_MASK	0x3
+
+#define AR724X_REV_ID_REVISION_MASK	0x3
+
+#define AR934X_REV_ID_REVISION_MASK	0xf
+
+#define QCA953X_REV_ID_REVISION_MASK	0xf
+
+#define QCA955X_REV_ID_REVISION_MASK	0xf
+
+#define QCA956X_REV_ID_REVISION_MASK	0xf
+
+/*
+ * RTC block
+ */
+#define AR933X_RTC_REG_RESET		0x40
+#define AR933X_RTC_REG_STATUS		0x44
+#define AR933X_RTC_REG_DERIVED		0x48
+#define AR933X_RTC_REG_FORCE_WAKE	0x4c
+#define AR933X_RTC_REG_INT_CAUSE	0x50
+#define AR933X_RTC_REG_CAUSE_CLR	0x50
+#define AR933X_RTC_REG_INT_ENABLE	0x54
+#define AR933X_RTC_REG_INT_MASKE	0x58
+
+/*
+ * SPI block
+ */
+#define AR71XX_SPI_REG_FS	0x00	/* Function Select */
+#define AR71XX_SPI_REG_CTRL	0x04	/* SPI Control */
+#define AR71XX_SPI_REG_IOC	0x08	/* SPI I/O Control */
+#define AR71XX_SPI_REG_RDS	0x0c	/* Read Data Shift */
+
+#define AR71XX_SPI_FS_GPIO	BIT(0)	/* Enable GPIO mode */
+
+#define AR71XX_SPI_CTRL_RD	BIT(6)	/* Remap Disable */
+#define AR71XX_SPI_CTRL_DIV_MASK 0x3f
+
+#define AR71XX_SPI_IOC_DO	BIT(0)	/* Data Out pin */
+#define AR71XX_SPI_IOC_CLK	BIT(8)	/* CLK pin */
+#define AR71XX_SPI_IOC_CS(n)	BIT(16 + (n))
+#define AR71XX_SPI_IOC_CS0	AR71XX_SPI_IOC_CS(0)
+#define AR71XX_SPI_IOC_CS1	AR71XX_SPI_IOC_CS(1)
+#define AR71XX_SPI_IOC_CS2	AR71XX_SPI_IOC_CS(2)
+#define AR71XX_SPI_IOC_CS_ALL	(AR71XX_SPI_IOC_CS0 | AR71XX_SPI_IOC_CS1 | \
+				 AR71XX_SPI_IOC_CS2)
+
+/*
+ * GPIO block
+ */
+#define AR71XX_GPIO_REG_OE		0x00
+#define AR71XX_GPIO_REG_IN		0x04
+#define AR71XX_GPIO_REG_OUT		0x08
+#define AR71XX_GPIO_REG_SET		0x0c
+#define AR71XX_GPIO_REG_CLEAR		0x10
+#define AR71XX_GPIO_REG_INT_MODE	0x14
+#define AR71XX_GPIO_REG_INT_TYPE	0x18
+#define AR71XX_GPIO_REG_INT_POLARITY	0x1c
+#define AR71XX_GPIO_REG_INT_PENDING	0x20
+#define AR71XX_GPIO_REG_INT_ENABLE	0x24
+#define AR71XX_GPIO_REG_FUNC		0x28
+#define AR933X_GPIO_REG_FUNC		0x30
+
+#define AR934X_GPIO_REG_OUT_FUNC0	0x2c
+#define AR934X_GPIO_REG_OUT_FUNC1	0x30
+#define AR934X_GPIO_REG_OUT_FUNC2	0x34
+#define AR934X_GPIO_REG_OUT_FUNC3	0x38
+#define AR934X_GPIO_REG_OUT_FUNC4	0x3c
+#define AR934X_GPIO_REG_OUT_FUNC5	0x40
+#define AR934X_GPIO_REG_FUNC		0x6c
+
+#define QCA953X_GPIO_REG_OUT_FUNC0	0x2c
+#define QCA953X_GPIO_REG_OUT_FUNC1	0x30
+#define QCA953X_GPIO_REG_OUT_FUNC2	0x34
+#define QCA953X_GPIO_REG_OUT_FUNC3	0x38
+#define QCA953X_GPIO_REG_OUT_FUNC4	0x3c
+#define QCA953X_GPIO_REG_IN_ENABLE0	0x44
+#define QCA953X_GPIO_REG_FUNC		0x6c
+
+#define QCA953X_GPIO_OUT_MUX_SPI_CS1		10
+#define QCA953X_GPIO_OUT_MUX_SPI_CS2		11
+#define QCA953X_GPIO_OUT_MUX_SPI_CS0		9
+#define QCA953X_GPIO_OUT_MUX_SPI_CLK		8
+#define QCA953X_GPIO_OUT_MUX_SPI_MOSI		12
+#define QCA953X_GPIO_OUT_MUX_LED_LINK1		41
+#define QCA953X_GPIO_OUT_MUX_LED_LINK2		42
+#define QCA953X_GPIO_OUT_MUX_LED_LINK3		43
+#define QCA953X_GPIO_OUT_MUX_LED_LINK4		44
+#define QCA953X_GPIO_OUT_MUX_LED_LINK5		45
+
+#define QCA955X_GPIO_REG_OUT_FUNC0	0x2c
+#define QCA955X_GPIO_REG_OUT_FUNC1	0x30
+#define QCA955X_GPIO_REG_OUT_FUNC2	0x34
+#define QCA955X_GPIO_REG_OUT_FUNC3	0x38
+#define QCA955X_GPIO_REG_OUT_FUNC4	0x3c
+#define QCA955X_GPIO_REG_OUT_FUNC5	0x40
+#define QCA955X_GPIO_REG_FUNC		0x6c
+
+#define QCA956X_GPIO_REG_OUT_FUNC0	0x2c
+#define QCA956X_GPIO_REG_OUT_FUNC1	0x30
+#define QCA956X_GPIO_REG_OUT_FUNC2	0x34
+#define QCA956X_GPIO_REG_OUT_FUNC3	0x38
+#define QCA956X_GPIO_REG_OUT_FUNC4	0x3c
+#define QCA956X_GPIO_REG_OUT_FUNC5	0x40
+#define QCA956X_GPIO_REG_IN_ENABLE0	0x44
+#define QCA956X_GPIO_REG_IN_ENABLE3	0x50
+#define QCA956X_GPIO_REG_FUNC		0x6c
+
+#define QCA956X_GPIO_OUT_MUX_GE0_MDO	32
+#define QCA956X_GPIO_OUT_MUX_GE0_MDC	33
+
+#define AR71XX_GPIO_COUNT		16
+#define AR7240_GPIO_COUNT		18
+#define AR7241_GPIO_COUNT		20
+#define AR913X_GPIO_COUNT		22
+#define AR933X_GPIO_COUNT		30
+#define AR934X_GPIO_COUNT		23
+#define QCA953X_GPIO_COUNT		18
+#define QCA955X_GPIO_COUNT		24
+#define QCA956X_GPIO_COUNT		23
+
+/*
+ * SRIF block
+ */
+#define AR933X_SRIF_DDR_DPLL1_REG	0x240
+#define AR933X_SRIF_DDR_DPLL2_REG	0x244
+#define AR933X_SRIF_DDR_DPLL3_REG	0x248
+#define AR933X_SRIF_DDR_DPLL4_REG	0x24c
+
+#define AR934X_SRIF_CPU_DPLL1_REG	0x1c0
+#define AR934X_SRIF_CPU_DPLL2_REG	0x1c4
+#define AR934X_SRIF_CPU_DPLL3_REG	0x1c8
+
+#define AR934X_SRIF_DDR_DPLL1_REG	0x240
+#define AR934X_SRIF_DDR_DPLL2_REG	0x244
+#define AR934X_SRIF_DDR_DPLL3_REG	0x248
+
+#define AR934X_SRIF_DPLL1_REFDIV_SHIFT	27
+#define AR934X_SRIF_DPLL1_REFDIV_MASK	0x1f
+#define AR934X_SRIF_DPLL1_NINT_SHIFT	18
+#define AR934X_SRIF_DPLL1_NINT_MASK	0x1ff
+#define AR934X_SRIF_DPLL1_NFRAC_MASK	0x0003ffff
+
+#define AR934X_SRIF_DPLL2_LOCAL_PLL	BIT(30)
+#define AR934X_SRIF_DPLL2_OUTDIV_SHIFT	13
+#define AR934X_SRIF_DPLL2_OUTDIV_MASK	0x7
+
+#define QCA953X_SRIF_CPU_DPLL1_REG	0x1c0
+#define QCA953X_SRIF_CPU_DPLL2_REG	0x1c4
+#define QCA953X_SRIF_CPU_DPLL3_REG	0x1c8
+
+#define QCA953X_SRIF_DDR_DPLL1_REG	0x240
+#define QCA953X_SRIF_DDR_DPLL2_REG	0x244
+#define QCA953X_SRIF_DDR_DPLL3_REG	0x248
+
+#define QCA953X_SRIF_DPLL1_REFDIV_SHIFT	27
+#define QCA953X_SRIF_DPLL1_REFDIV_MASK	0x1f
+#define QCA953X_SRIF_DPLL1_NINT_SHIFT	18
+#define QCA953X_SRIF_DPLL1_NINT_MASK	0x1ff
+#define QCA953X_SRIF_DPLL1_NFRAC_MASK	0x0003ffff
+
+#define QCA953X_SRIF_DPLL2_LOCAL_PLL	BIT(30)
+#define QCA953X_SRIF_DPLL2_OUTDIV_SHIFT	13
+#define QCA953X_SRIF_DPLL2_OUTDIV_MASK	0x7
+
+#define AR71XX_GPIO_FUNC_STEREO_EN		BIT(17)
+#define AR71XX_GPIO_FUNC_SLIC_EN		BIT(16)
+#define AR71XX_GPIO_FUNC_SPI_CS2_EN		BIT(13)
+#define AR71XX_GPIO_FUNC_SPI_CS1_EN		BIT(12)
+#define AR71XX_GPIO_FUNC_UART_EN		BIT(8)
+#define AR71XX_GPIO_FUNC_USB_OC_EN		BIT(4)
+#define AR71XX_GPIO_FUNC_USB_CLK_EN		BIT(0)
+
+#define AR724X_GPIO_FUNC_GE0_MII_CLK_EN		BIT(19)
+#define AR724X_GPIO_FUNC_SPI_EN			BIT(18)
+#define AR724X_GPIO_FUNC_SPI_CS_EN2		BIT(14)
+#define AR724X_GPIO_FUNC_SPI_CS_EN1		BIT(13)
+#define AR724X_GPIO_FUNC_CLK_OBS5_EN		BIT(12)
+#define AR724X_GPIO_FUNC_CLK_OBS4_EN		BIT(11)
+#define AR724X_GPIO_FUNC_CLK_OBS3_EN		BIT(10)
+#define AR724X_GPIO_FUNC_CLK_OBS2_EN		BIT(9)
+#define AR724X_GPIO_FUNC_CLK_OBS1_EN		BIT(8)
+#define AR724X_GPIO_FUNC_ETH_SWITCH_LED4_EN	BIT(7)
+#define AR724X_GPIO_FUNC_ETH_SWITCH_LED3_EN	BIT(6)
+#define AR724X_GPIO_FUNC_ETH_SWITCH_LED2_EN	BIT(5)
+#define AR724X_GPIO_FUNC_ETH_SWITCH_LED1_EN	BIT(4)
+#define AR724X_GPIO_FUNC_ETH_SWITCH_LED0_EN	BIT(3)
+#define AR724X_GPIO_FUNC_UART_RTS_CTS_EN	BIT(2)
+#define AR724X_GPIO_FUNC_UART_EN		BIT(1)
+#define AR724X_GPIO_FUNC_JTAG_DISABLE		BIT(0)
+
+#define AR913X_GPIO_FUNC_WMAC_LED_EN		BIT(22)
+#define AR913X_GPIO_FUNC_EXP_PORT_CS_EN		BIT(21)
+#define AR913X_GPIO_FUNC_I2S_REFCLKEN		BIT(20)
+#define AR913X_GPIO_FUNC_I2S_MCKEN		BIT(19)
+#define AR913X_GPIO_FUNC_I2S1_EN		BIT(18)
+#define AR913X_GPIO_FUNC_I2S0_EN		BIT(17)
+#define AR913X_GPIO_FUNC_SLIC_EN		BIT(16)
+#define AR913X_GPIO_FUNC_UART_RTSCTS_EN		BIT(9)
+#define AR913X_GPIO_FUNC_UART_EN		BIT(8)
+#define AR913X_GPIO_FUNC_USB_CLK_EN		BIT(4)
+
+#define AR933X_GPIO_FUNC_SPDIF2TCK		BIT(31)
+#define AR933X_GPIO_FUNC_SPDIF_EN		BIT(30)
+#define AR933X_GPIO_FUNC_I2SO_22_18_EN		BIT(29)
+#define AR933X_GPIO_FUNC_I2S_MCK_EN		BIT(27)
+#define AR933X_GPIO_FUNC_I2SO_EN		BIT(26)
+#define AR933X_GPIO_FUNC_ETH_SWITCH_LED_DUPL	BIT(25)
+#define AR933X_GPIO_FUNC_ETH_SWITCH_LED_COLL	BIT(24)
+#define AR933X_GPIO_FUNC_ETH_SWITCH_LED_ACT	BIT(23)
+#define AR933X_GPIO_FUNC_SPI_EN			BIT(18)
+#define AR933X_GPIO_FUNC_SPI_CS_EN2		BIT(14)
+#define AR933X_GPIO_FUNC_SPI_CS_EN1		BIT(13)
+#define AR933X_GPIO_FUNC_ETH_SWITCH_LED4_EN	BIT(7)
+#define AR933X_GPIO_FUNC_ETH_SWITCH_LED3_EN	BIT(6)
+#define AR933X_GPIO_FUNC_ETH_SWITCH_LED2_EN	BIT(5)
+#define AR933X_GPIO_FUNC_ETH_SWITCH_LED1_EN	BIT(4)
+#define AR933X_GPIO_FUNC_ETH_SWITCH_LED0_EN	BIT(3)
+#define AR933X_GPIO_FUNC_UART_RTS_CTS_EN	BIT(2)
+#define AR933X_GPIO_FUNC_UART_EN		BIT(1)
+#define AR933X_GPIO_FUNC_JTAG_DISABLE		BIT(0)
+
+#define AR933X_GPIO_FUNC_XLNA_EN		BIT(12)
+
+#define AR934X_GPIO_FUNC_CLK_OBS7_EN		BIT(9)
+#define AR934X_GPIO_FUNC_CLK_OBS6_EN		BIT(8)
+#define AR934X_GPIO_FUNC_CLK_OBS5_EN		BIT(7)
+#define AR934X_GPIO_FUNC_CLK_OBS4_EN		BIT(6)
+#define AR934X_GPIO_FUNC_CLK_OBS3_EN		BIT(5)
+#define AR934X_GPIO_FUNC_CLK_OBS2_EN		BIT(4)
+#define AR934X_GPIO_FUNC_CLK_OBS1_EN		BIT(3)
+#define AR934X_GPIO_FUNC_CLK_OBS0_EN		BIT(2)
+#define AR934X_GPIO_FUNC_JTAG_DISABLE		BIT(1)
+
+#define AR934X_GPIO_OUT_GPIO		0
+#define AR934X_GPIO_OUT_SPI_CS1	7
+#define AR934X_GPIO_OUT_LED_LINK0	41
+#define AR934X_GPIO_OUT_LED_LINK1	42
+#define AR934X_GPIO_OUT_LED_LINK2	43
+#define AR934X_GPIO_OUT_LED_LINK3	44
+#define AR934X_GPIO_OUT_LED_LINK4	45
+#define AR934X_GPIO_OUT_EXT_LNA0	46
+#define AR934X_GPIO_OUT_EXT_LNA1	47
+
+#define QCA955X_GPIO_OUT_GPIO		0
+
+/*
+ * MII_CTRL block
+ */
+#define AR71XX_MII_REG_MII0_CTRL	0x00
+#define AR71XX_MII_REG_MII1_CTRL	0x04
+
+#define AR71XX_MII_CTRL_IF_MASK		3
+#define AR71XX_MII_CTRL_SPEED_SHIFT	4
+#define AR71XX_MII_CTRL_SPEED_MASK	3
+#define AR71XX_MII_CTRL_SPEED_10	0
+#define AR71XX_MII_CTRL_SPEED_100	1
+#define AR71XX_MII_CTRL_SPEED_1000	2
+
+#define AR71XX_MII0_CTRL_IF_GMII	0
+#define AR71XX_MII0_CTRL_IF_MII		1
+#define AR71XX_MII0_CTRL_IF_RGMII	2
+#define AR71XX_MII0_CTRL_IF_RMII	3
+
+#define AR71XX_MII1_CTRL_IF_RGMII	0
+#define AR71XX_MII1_CTRL_IF_RMII	1
+
+/*
+ * AR933X GMAC interface
+ */
+#define AR933X_GMAC_REG_ETH_CFG		0x00
+
+#define AR933X_ETH_CFG_RGMII_GE0	BIT(0)
+#define AR933X_ETH_CFG_MII_GE0		BIT(1)
+#define AR933X_ETH_CFG_GMII_GE0		BIT(2)
+#define AR933X_ETH_CFG_MII_GE0_MASTER	BIT(3)
+#define AR933X_ETH_CFG_MII_GE0_SLAVE	BIT(4)
+#define AR933X_ETH_CFG_MII_GE0_ERR_EN	BIT(5)
+#define AR933X_ETH_CFG_SW_PHY_SWAP	BIT(7)
+#define AR933X_ETH_CFG_SW_PHY_ADDR_SWAP	BIT(8)
+#define AR933X_ETH_CFG_RMII_GE0		BIT(9)
+#define AR933X_ETH_CFG_RMII_GE0_SPD_10	0
+#define AR933X_ETH_CFG_RMII_GE0_SPD_100	BIT(10)
+
+/*
+ * AR934X GMAC Interface
+ */
+#define AR934X_GMAC_REG_ETH_CFG		0x00
+
+#define AR934X_ETH_CFG_RGMII_GMAC0	BIT(0)
+#define AR934X_ETH_CFG_MII_GMAC0	BIT(1)
+#define AR934X_ETH_CFG_GMII_GMAC0	BIT(2)
+#define AR934X_ETH_CFG_MII_GMAC0_MASTER	BIT(3)
+#define AR934X_ETH_CFG_MII_GMAC0_SLAVE	BIT(4)
+#define AR934X_ETH_CFG_MII_GMAC0_ERR_EN	BIT(5)
+#define AR934X_ETH_CFG_SW_ONLY_MODE	BIT(6)
+#define AR934X_ETH_CFG_SW_PHY_SWAP	BIT(7)
+#define AR934X_ETH_CFG_SW_APB_ACCESS	BIT(9)
+#define AR934X_ETH_CFG_RMII_GMAC0	BIT(10)
+#define AR933X_ETH_CFG_MII_CNTL_SPEED	BIT(11)
+#define AR934X_ETH_CFG_RMII_GMAC0_MASTER BIT(12)
+#define AR933X_ETH_CFG_SW_ACC_MSB_FIRST	BIT(13)
+#define AR934X_ETH_CFG_RXD_DELAY        BIT(14)
+#define AR934X_ETH_CFG_RXD_DELAY_MASK   0x3
+#define AR934X_ETH_CFG_RXD_DELAY_SHIFT  14
+#define AR934X_ETH_CFG_RDV_DELAY        BIT(16)
+#define AR934X_ETH_CFG_RDV_DELAY_MASK   0x3
+#define AR934X_ETH_CFG_RDV_DELAY_SHIFT  16
+
+/*
+ * QCA953X GMAC Interface
+ */
+#define QCA953X_GMAC_REG_ETH_CFG		0x00
+
+#define QCA953X_ETH_CFG_SW_ONLY_MODE		BIT(6)
+#define QCA953X_ETH_CFG_SW_PHY_SWAP		BIT(7)
+#define QCA953X_ETH_CFG_SW_APB_ACCESS		BIT(9)
+#define QCA953X_ETH_CFG_SW_ACC_MSB_FIRST	BIT(13)
+
+/*
+ * QCA955X GMAC Interface
+ */
+
+#define QCA955X_GMAC_REG_ETH_CFG	0x00
+
+#define QCA955X_ETH_CFG_RGMII_EN	BIT(0)
+#define QCA955X_ETH_CFG_GE0_SGMII	BIT(6)
+
+#endif /* __ASM_AR71XX_H */
diff --git a/arch/mips/mach-ath79/include/mach/ath79.h b/arch/mips/mach-ath79/include/mach/ath79.h
new file mode 100644
index 0000000..58c8224
--- /dev/null
+++ b/arch/mips/mach-ath79/include/mach/ath79.h
@@ -0,0 +1,143 @@
+/*
+ * Atheros AR71XX/AR724X/AR913X common definitions
+ *
+ * Copyright (C) 2015 Wills Wang, <wills.wang@live.com>
+ * Copyright (C) 2008-2011 Gabor Juhos <juhosg@openwrt.org>
+ * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef __ASM_MACH_ATH79_H
+#define __ASM_MACH_ATH79_H
+
+#include <linux/types.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+enum ath79_soc_type {
+	ATH79_SOC_UNKNOWN,
+	ATH79_SOC_AR7130,
+	ATH79_SOC_AR7141,
+	ATH79_SOC_AR7161,
+	ATH79_SOC_AR7240,
+	ATH79_SOC_AR7241,
+	ATH79_SOC_AR7242,
+	ATH79_SOC_AR9130,
+	ATH79_SOC_AR9132,
+	ATH79_SOC_AR9330,
+	ATH79_SOC_AR9331,
+	ATH79_SOC_AR9341,
+	ATH79_SOC_AR9342,
+	ATH79_SOC_AR9344,
+	ATH79_SOC_QCA9533,
+	ATH79_SOC_QCA9556,
+	ATH79_SOC_QCA9558,
+	ATH79_SOC_TP9343,
+	ATH79_SOC_QCA9561,
+};
+
+static inline int soc_is_ar71xx(void)
+{
+	return gd->arch.soc == ATH79_SOC_AR7130 ||
+		gd->arch.soc == ATH79_SOC_AR7141 ||
+		gd->arch.soc == ATH79_SOC_AR7161;
+}
+
+static inline int soc_is_ar724x(void)
+{
+	return gd->arch.soc == ATH79_SOC_AR7240 ||
+		gd->arch.soc == ATH79_SOC_AR7241 ||
+		gd->arch.soc == ATH79_SOC_AR7242;
+}
+
+static inline int soc_is_ar7240(void)
+{
+	return gd->arch.soc == ATH79_SOC_AR7240;
+}
+
+static inline int soc_is_ar7241(void)
+{
+	return gd->arch.soc == ATH79_SOC_AR7241;
+}
+
+static inline int soc_is_ar7242(void)
+{
+	return gd->arch.soc == ATH79_SOC_AR7242;
+}
+
+static inline int soc_is_ar913x(void)
+{
+	return gd->arch.soc == ATH79_SOC_AR9130 ||
+		gd->arch.soc == ATH79_SOC_AR9132;
+}
+
+static inline int soc_is_ar933x(void)
+{
+	return gd->arch.soc == ATH79_SOC_AR9330 ||
+		gd->arch.soc == ATH79_SOC_AR9331;
+}
+
+static inline int soc_is_ar9341(void)
+{
+	return gd->arch.soc == ATH79_SOC_AR9341;
+}
+
+static inline int soc_is_ar9342(void)
+{
+	return gd->arch.soc == ATH79_SOC_AR9342;
+}
+
+static inline int soc_is_ar9344(void)
+{
+	return gd->arch.soc == ATH79_SOC_AR9344;
+}
+
+static inline int soc_is_ar934x(void)
+{
+	return soc_is_ar9341() ||
+		soc_is_ar9342() ||
+		soc_is_ar9344();
+}
+
+static inline int soc_is_qca9533(void)
+{
+	return gd->arch.soc == ATH79_SOC_QCA9533;
+}
+
+static inline int soc_is_qca953x(void)
+{
+	return soc_is_qca9533();
+}
+
+static inline int soc_is_qca9556(void)
+{
+	return gd->arch.soc == ATH79_SOC_QCA9556;
+}
+
+static inline int soc_is_qca9558(void)
+{
+	return gd->arch.soc == ATH79_SOC_QCA9558;
+}
+
+static inline int soc_is_qca955x(void)
+{
+	return soc_is_qca9556() || soc_is_qca9558();
+}
+
+static inline int soc_is_tp9343(void)
+{
+	return gd->arch.soc == ATH79_SOC_TP9343;
+}
+
+static inline int soc_is_qca9561(void)
+{
+	return gd->arch.soc == ATH79_SOC_QCA9561;
+}
+
+static inline int soc_is_qca956x(void)
+{
+	return soc_is_tp9343() || soc_is_qca9561();
+}
+
+#endif /* __ASM_MACH_ATH79_H */
diff --git a/arch/mips/mach-ath79/include/mach/ddr.h b/arch/mips/mach-ath79/include/mach/ddr.h
new file mode 100644
index 0000000..e90c9a1
--- /dev/null
+++ b/arch/mips/mach-ath79/include/mach/ddr.h
@@ -0,0 +1,13 @@
+/*
+ * (C) Copyright 2015
+ * Wills Wang, <wills.wang@live.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef __ASM_MACH_DDR_H
+#define __ASM_MACH_DDR_H
+
+void ddr_tap_init(void);
+
+#endif /* __ASM_MACH_DDR_H */
diff --git a/arch/mips/mach-ath79/reset.c b/arch/mips/mach-ath79/reset.c
new file mode 100644
index 0000000..5322df3
--- /dev/null
+++ b/arch/mips/mach-ath79/reset.c
@@ -0,0 +1,46 @@
+/*
+ * (C) Copyright 2015
+ * Wills Wang, <wills.wang@live.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/addrspace.h>
+#include <asm/types.h>
+#include <asm/arch/ath79.h>
+#include <asm/arch/ar71xx_regs.h>
+
+void _machine_restart(void)
+{
+	u32 val, reg = 0;
+
+	if (soc_is_ar71xx())
+		reg = AR71XX_RESET_REG_RESET_MODULE;
+	else if (soc_is_ar724x())
+		reg = AR724X_RESET_REG_RESET_MODULE;
+	else if (soc_is_ar913x())
+		reg = AR913X_RESET_REG_RESET_MODULE;
+	else if (soc_is_ar933x())
+		reg = AR933X_RESET_REG_RESET_MODULE;
+	else if (soc_is_ar934x())
+		reg = AR934X_RESET_REG_RESET_MODULE;
+	else if (soc_is_qca953x())
+		reg = QCA953X_RESET_REG_RESET_MODULE;
+	else if (soc_is_qca955x())
+		reg = QCA955X_RESET_REG_RESET_MODULE;
+	else if (soc_is_qca956x())
+		reg = QCA956X_RESET_REG_RESET_MODULE;
+	else
+		puts("Reset register not defined for this SOC\n");
+
+	if (reg) {
+		val = readl(KSEG1ADDR(AR71XX_RESET_BASE + reg));
+		val |= AR71XX_RESET_FULL_CHIP;
+		writel(val, KSEG1ADDR(AR71XX_RESET_BASE + reg));
+	}
+
+	while (1)
+		/* NOP */;
+}
-- 
1.9.1

^ permalink raw reply related	[flat|nested] 39+ messages in thread

* [U-Boot] [PATCH v4 4/8] mips: ath79: add serial driver for ar933x SOC
       [not found] <1451069788-6786-1-git-send-email-wills.wang@live.com>
                   ` (2 preceding siblings ...)
  2015-12-25 18:56 ` [U-Boot] [PATCH v4 3/8] mips: add base support for atheros ath79 based SOCs Wills Wang
@ 2015-12-25 18:56 ` Wills Wang
  2015-12-26 13:20   ` Daniel Schwierzeck
  2015-12-25 18:56 ` [U-Boot] [PATCH v4 5/8] mips: ath79: add spi driver Wills Wang
                   ` (3 subsequent siblings)
  7 siblings, 1 reply; 39+ messages in thread
From: Wills Wang @ 2015-12-25 18:56 UTC (permalink / raw)
  To: u-boot

Signed-off-by: Wills Wang <wills.wang@live.com>
---

Changes in v4: None
Changes in v3: None
Changes in v2: None

 drivers/serial/Makefile        |   1 +
 drivers/serial/serial_ar933x.c | 225 +++++++++++++++++++++++++++++++++++++++++
 2 files changed, 226 insertions(+)
 create mode 100644 drivers/serial/serial_ar933x.c

diff --git a/drivers/serial/Makefile b/drivers/serial/Makefile
index dd87147..9a7ad89 100644
--- a/drivers/serial/Makefile
+++ b/drivers/serial/Makefile
@@ -17,6 +17,7 @@ endif
 
 obj-$(CONFIG_ALTERA_UART) += altera_uart.o
 obj-$(CONFIG_ALTERA_JTAG_UART) += altera_jtag_uart.o
+obj-$(CONFIG_AR933X_SERIAL) += serial_ar933x.o
 obj-$(CONFIG_ARM_DCC) += arm_dcc.o
 obj-$(CONFIG_ATMEL_USART) += atmel_usart.o
 obj-$(CONFIG_EFI_APP) += serial_efi.o
diff --git a/drivers/serial/serial_ar933x.c b/drivers/serial/serial_ar933x.c
new file mode 100644
index 0000000..efca93c
--- /dev/null
+++ b/drivers/serial/serial_ar933x.c
@@ -0,0 +1,225 @@
+/*
+ * (C) Copyright 2015
+ * Wills Wang, <wills.wang@live.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <errno.h>
+#include <serial.h>
+#include <asm/io.h>
+#include <asm/addrspace.h>
+#include <asm/div64.h>
+#include <asm/types.h>
+#include <asm/arch/ar71xx_regs.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#define AR933X_UART_DATA_REG            0x00
+#define AR933X_UART_CS_REG              0x04
+#define AR933X_UART_CLK_REG             0x08
+
+#define AR933X_UART_DATA_TX_RX_MASK     0xff
+#define AR933X_UART_DATA_RX_CSR         BIT(8)
+#define AR933X_UART_DATA_TX_CSR         BIT(9)
+#define AR933X_UART_CS_IF_MODE_S        2
+#define AR933X_UART_CS_IF_MODE_M        0x3
+#define AR933X_UART_CS_IF_MODE_DTE      1
+#define AR933X_UART_CS_IF_MODE_DCE      2
+#define AR933X_UART_CS_TX_RDY_ORIDE     BIT(7)
+#define AR933X_UART_CS_RX_RDY_ORIDE     BIT(8)
+#define AR933X_UART_CLK_STEP_M          0xffff
+#define AR933X_UART_CLK_SCALE_M         0xfff
+#define AR933X_UART_CLK_SCALE_S         16
+#define AR933X_UART_CLK_STEP_S          0
+
+struct ar933x_serial_platdata {
+	void __iomem *regs;
+};
+
+struct ar933x_serial_priv {
+	void __iomem *regs;
+};
+
+static inline u32 ar933x_serial_read(struct udevice *dev, u32 offset)
+{
+	struct ar933x_serial_priv *priv = dev_get_priv(dev);
+	return readl(priv->regs + offset);
+}
+
+static inline void ar933x_serial_write(struct udevice *dev,
+					u32 val, u32 offset)
+{
+	struct ar933x_serial_priv *priv = dev_get_priv(dev);
+	writel(val, priv->regs + offset);
+}
+
+/*
+ * baudrate = (clk / (scale + 1)) * (step * (1 / 2^17))
+ */
+static u32 ar933x_serial_get_baud(u32 clk, u32 scale, u32 step)
+{
+	u64 t;
+	u32 div;
+
+	div = (2 << 16) * (scale + 1);
+	t = clk;
+	t *= step;
+	t += (div / 2);
+	do_div(t, div);
+
+	return t;
+}
+
+static void ar933x_serial_get_scale_step(u32 clk, u32 baud,
+				       u32 *scale, u32 *step)
+{
+	u32 tscale, baudrate;
+	long min_diff;
+
+	*scale = 0;
+	*step = 0;
+
+	min_diff = baud;
+	for (tscale = 0; tscale < AR933X_UART_CLK_SCALE_M; tscale++) {
+		u64 tstep;
+		int diff;
+
+		tstep = baud * (tscale + 1);
+		tstep *= (2 << 16);
+		do_div(tstep, clk);
+
+		if (tstep > AR933X_UART_CLK_STEP_M)
+			break;
+
+		baudrate = ar933x_serial_get_baud(clk, tscale, tstep);
+		diff = abs(baudrate - baud);
+		if (diff < min_diff) {
+			min_diff = diff;
+			*scale = tscale;
+			*step = tstep;
+		}
+	}
+}
+
+static int ar933x_serial_setbrg(struct udevice *dev, int baudrate)
+{
+	u32 val, scale, step;
+
+	val = get_serial_clock();
+	ar933x_serial_get_scale_step(val, baudrate, &scale, &step);
+
+	val  = (scale & AR933X_UART_CLK_SCALE_M)
+			<< AR933X_UART_CLK_SCALE_S;
+	val |= (step & AR933X_UART_CLK_STEP_M)
+			<< AR933X_UART_CLK_STEP_S;
+	ar933x_serial_write(dev, val, AR933X_UART_CLK_REG);
+
+	return 0;
+}
+
+static int ar933x_serial_putc(struct udevice *dev, const char c)
+{
+	u32 data;
+
+	if (c == '\n')
+		ar933x_serial_putc(dev, '\r');
+
+	do {
+		data = ar933x_serial_read(dev, AR933X_UART_DATA_REG);
+	} while (!(data & AR933X_UART_DATA_TX_CSR));
+
+	data  = (u32)c | AR933X_UART_DATA_TX_CSR;
+	ar933x_serial_write(dev, data, AR933X_UART_DATA_REG);
+
+	return 0;
+}
+
+static int ar933x_serial_getc(struct udevice *dev)
+{
+	u32 data;
+
+	do {
+		data = ar933x_serial_read(dev, AR933X_UART_DATA_REG);
+	} while (!(data & AR933X_UART_DATA_RX_CSR));
+
+	data = ar933x_serial_read(dev, AR933X_UART_DATA_REG);
+	ar933x_serial_write(dev, AR933X_UART_DATA_RX_CSR,
+			    AR933X_UART_DATA_REG);
+	return data & AR933X_UART_DATA_TX_RX_MASK;
+}
+
+static int ar933x_serial_pending(struct udevice *dev, bool input)
+{
+	u32 data;
+
+	data = ar933x_serial_read(dev, AR933X_UART_DATA_REG);
+	if (input)
+		return (data & AR933X_UART_DATA_RX_CSR) ? 1 : 0;
+	else
+		return (data & AR933X_UART_DATA_TX_CSR) ? 0 : 1;
+}
+
+static int ar933x_serial_probe(struct udevice *dev)
+{
+	struct ar933x_serial_priv *priv = dev_get_priv(dev);
+	struct ar933x_serial_platdata *plat = dev_get_platdata(dev);
+	u32 val;
+
+	priv->regs = plat->regs;
+
+	/*
+	 * UART controller configuration:
+	 * - no DMA
+	 * - no interrupt
+	 * - DCE mode
+	 * - no flow control
+	 * - set RX ready oride
+	 * - set TX ready oride
+	 */
+	val = (AR933X_UART_CS_IF_MODE_DCE << AR933X_UART_CS_IF_MODE_S) |
+	      AR933X_UART_CS_TX_RDY_ORIDE | AR933X_UART_CS_RX_RDY_ORIDE;
+	ar933x_serial_write(dev, val, AR933X_UART_CS_REG);
+	return 0;
+}
+
+static int ar933x_serial_ofdata_to_platdata(struct udevice *dev)
+{
+	struct ar933x_serial_platdata *plat = dev_get_platdata(dev);
+	fdt_addr_t addr;
+
+	addr = dev_get_addr(dev);
+	if (addr == FDT_ADDR_T_NONE)
+		return -EINVAL;
+
+	plat->regs = map_physmem(addr,
+				 AR933X_UART_SIZE,
+				 MAP_NOCACHE);
+	return 0;
+}
+
+static const struct dm_serial_ops ar933x_serial_ops = {
+	.putc = ar933x_serial_putc,
+	.pending = ar933x_serial_pending,
+	.getc = ar933x_serial_getc,
+	.setbrg = ar933x_serial_setbrg,
+};
+
+static const struct udevice_id ar933x_serial_ids[] = {
+	{ .compatible = "ath79,ar933x-uart" },
+	{ }
+};
+
+U_BOOT_DRIVER(serial_ar933x) = {
+	.name   = "serial_ar933x",
+	.id = UCLASS_SERIAL,
+	.of_match = ar933x_serial_ids,
+	.ofdata_to_platdata = ar933x_serial_ofdata_to_platdata,
+	.platdata_auto_alloc_size = sizeof(struct ar933x_serial_platdata),
+	.priv_auto_alloc_size = sizeof(struct ar933x_serial_priv),
+	.probe = ar933x_serial_probe,
+	.ops    = &ar933x_serial_ops,
+	.flags = DM_FLAG_PRE_RELOC,
+};
-- 
1.9.1

^ permalink raw reply related	[flat|nested] 39+ messages in thread

* [U-Boot] [PATCH v4 5/8] mips: ath79: add spi driver
       [not found] <1451069788-6786-1-git-send-email-wills.wang@live.com>
                   ` (3 preceding siblings ...)
  2015-12-25 18:56 ` [U-Boot] [PATCH v4 4/8] mips: ath79: add serial driver for ar933x SOC Wills Wang
@ 2015-12-25 18:56 ` Wills Wang
  2015-12-26 13:23   ` Daniel Schwierzeck
  2015-12-25 18:56 ` [U-Boot] [PATCH v4 6/8] mips: ath79: add AP121 reference board Wills Wang
                   ` (2 subsequent siblings)
  7 siblings, 1 reply; 39+ messages in thread
From: Wills Wang @ 2015-12-25 18:56 UTC (permalink / raw)
  To: u-boot

Signed-off-by: Wills Wang <wills.wang@live.com>
---

Changes in v4: None
Changes in v3: None
Changes in v2: None

 drivers/spi/Kconfig     |   8 ++
 drivers/spi/Makefile    |   1 +
 drivers/spi/ath79_spi.c | 211 ++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 220 insertions(+)
 create mode 100644 drivers/spi/ath79_spi.c

diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig
index 2cdb110..a9e1d31 100644
--- a/drivers/spi/Kconfig
+++ b/drivers/spi/Kconfig
@@ -23,6 +23,14 @@ config ALTERA_SPI
 	  IP core. Please find details on the "Embedded Peripherals IP
 	  User Guide" of Altera.
 
+config ATH79_SPI
+	bool "Atheros SPI driver"
+	help
+	  Enable the Atheros ar7xxx/ar9xxx SoC SPI driver, it was used
+	  to access SPI NOR flash and other SPI peripherals. This driver
+	  uses driver model and requires a device tree binding to
+	  operate.
+
 config CADENCE_QSPI
 	bool "Cadence QSPI driver"
 	help
diff --git a/drivers/spi/Makefile b/drivers/spi/Makefile
index 3eca745..7fb2926 100644
--- a/drivers/spi/Makefile
+++ b/drivers/spi/Makefile
@@ -17,6 +17,7 @@ endif
 
 obj-$(CONFIG_ALTERA_SPI) += altera_spi.o
 obj-$(CONFIG_ARMADA100_SPI) += armada100_spi.o
+obj-$(CONFIG_ATH79_SPI) += ath79_spi.o
 obj-$(CONFIG_ATMEL_DATAFLASH_SPI) += atmel_dataflash_spi.o
 obj-$(CONFIG_ATMEL_SPI) += atmel_spi.o
 obj-$(CONFIG_BFIN_SPI) += bfin_spi.o
diff --git a/drivers/spi/ath79_spi.c b/drivers/spi/ath79_spi.c
new file mode 100644
index 0000000..dcce584
--- /dev/null
+++ b/drivers/spi/ath79_spi.c
@@ -0,0 +1,211 @@
+/*
+ * (C) Copyright 2015
+ * Wills Wang, <wills.wang@live.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <spi.h>
+#include <dm.h>
+#include <errno.h>
+#include <asm/io.h>
+#include <asm/addrspace.h>
+#include <asm/types.h>
+#include <asm/arch/ar71xx_regs.h>
+
+/* CLOCK_DIVIDER = 3 (SPI clock = 200 / 8 ~ 25 MHz) */
+#define SPI_CLK_DIV(x)     (((x) >> 1) - 1)
+
+struct ath79_spi_platdata {
+	void __iomem *regs;
+};
+
+struct ath79_spi_priv {
+	void __iomem *regs;
+};
+
+static inline u32 ath79_spi_read(struct udevice *bus, u32 offset)
+{
+	struct ath79_spi_priv *priv = dev_get_priv(bus);
+	return readl(priv->regs + offset);
+}
+
+static inline void ath79_spi_write(struct udevice *bus,
+					u32 val, u32 offset)
+{
+	struct ath79_spi_priv *priv = dev_get_priv(bus);
+	writel(val, priv->regs + offset);
+}
+
+static int ath79_spi_claim_bus(struct udevice *dev)
+{
+	return 0;
+}
+
+static int ath79_spi_release_bus(struct udevice *dev)
+{
+	return 0;
+}
+
+static int ath79_spi_xfer(struct udevice *dev, unsigned int bitlen,
+		const void *dout, void *din, unsigned long flags)
+{
+	struct udevice *bus = dev->parent;
+	struct dm_spi_slave_platdata *slave = dev_get_parent_platdata(dev);
+	uint8_t *rx = din;
+	const uint8_t *tx = dout;
+	uint8_t curbyte, curbitlen, restbits;
+	uint32_t bytes = bitlen / 8;
+	uint32_t out;
+	uint32_t in;
+
+	if (flags & SPI_XFER_BEGIN) {
+		ath79_spi_write(bus, AR71XX_SPI_FS_GPIO, AR71XX_SPI_REG_FS);
+		ath79_spi_write(bus, AR71XX_SPI_IOC_CS_ALL, AR71XX_SPI_REG_IOC);
+	}
+
+	restbits = (bitlen % 8);
+	if (restbits)
+		bytes++;
+
+	/* enable chip select */
+	out = AR71XX_SPI_IOC_CS_ALL & ~(AR71XX_SPI_IOC_CS(slave->cs));
+	while (bytes--) {
+		curbyte = 0;
+		if (tx)
+			curbyte = *tx++;
+
+		if (restbits) {
+			curbitlen = restbits;
+			curbyte <<= 8 - restbits;
+		} else {
+			curbitlen = 8;
+		}
+
+		/* clock starts@inactive polarity */
+		for (curbyte <<= (8 - curbitlen); curbitlen; curbitlen--) {
+			if (curbyte & 0x80)
+				out |= AR71XX_SPI_IOC_DO;
+			else
+				out &= ~(AR71XX_SPI_IOC_DO);
+
+			/* setup MSB (to slave) on trailing edge */
+			ath79_spi_write(bus, out, AR71XX_SPI_REG_IOC);
+			ath79_spi_write(bus, out | AR71XX_SPI_IOC_CLK,
+					AR71XX_SPI_REG_IOC);
+			curbyte <<= 1;
+		}
+
+		in = ath79_spi_read(bus, AR71XX_SPI_REG_RDS);
+		if (rx) {
+			if (restbits)
+				*rx++ = (in << (8 - restbits));
+			else
+				*rx++ = in;
+		}
+	}
+
+	if (flags & SPI_XFER_END) {
+		ath79_spi_write(bus, AR71XX_SPI_IOC_CS(slave->cs),
+				AR71XX_SPI_REG_IOC);
+		ath79_spi_write(bus, AR71XX_SPI_IOC_CS_ALL, AR71XX_SPI_REG_IOC);
+		ath79_spi_write(bus, 0, AR71XX_SPI_REG_FS);
+	}
+
+	return 0;
+}
+
+
+static int ath79_spi_set_speed(struct udevice *bus, uint speed)
+{
+	u32 val, div = 0;
+
+	if (speed)
+		div = get_bus_freq(0) / speed;
+
+	if (div > 63)
+		div = 63;
+
+	if (div < 5)
+		div = 5;
+
+	ath79_spi_write(bus, AR71XX_SPI_FS_GPIO, AR71XX_SPI_REG_FS);
+	val = ath79_spi_read(bus, AR71XX_SPI_REG_CTRL);
+	val &= ~AR71XX_SPI_CTRL_DIV_MASK;
+	val |= SPI_CLK_DIV(div);
+	ath79_spi_write(bus, val, AR71XX_SPI_REG_CTRL);
+	ath79_spi_write(bus, 0, AR71XX_SPI_REG_FS);
+	return 0;
+}
+
+static int ath79_spi_set_mode(struct udevice *bus, uint mode)
+{
+	return 0;
+}
+
+static int ath79_spi_probe(struct udevice *bus)
+{
+	struct ath79_spi_priv *priv = dev_get_priv(bus);
+	struct ath79_spi_platdata *plat = dev_get_platdata(bus);
+
+	priv->regs = plat->regs;
+
+	/* Init SPI Hardware, disable remap, set clock */
+	ath79_spi_write(bus, AR71XX_SPI_FS_GPIO, AR71XX_SPI_REG_FS);
+	ath79_spi_write(bus, AR71XX_SPI_CTRL_RD | SPI_CLK_DIV(8),
+			AR71XX_SPI_REG_CTRL);
+	ath79_spi_write(bus, 0, AR71XX_SPI_REG_FS);
+
+	return 0;
+}
+
+static int ath79_cs_info(struct udevice *bus, uint cs,
+			   struct spi_cs_info *info)
+{
+	/* Always allow activity on CS 0/1/2 */
+	if (cs >= 3)
+		return -ENODEV;
+
+	return 0;
+}
+
+static int ath79_spi_ofdata_to_platdata(struct udevice *bus)
+{
+	struct ath79_spi_platdata *plat = dev_get_platdata(bus);
+	fdt_addr_t addr;
+
+	addr = dev_get_addr(bus);
+	if (addr == FDT_ADDR_T_NONE)
+		return -EINVAL;
+
+	plat->regs = map_physmem(addr,
+				 AR71XX_SPI_SIZE,
+				 MAP_NOCACHE);
+	return 0;
+}
+
+static const struct dm_spi_ops ath79_spi_ops = {
+	.claim_bus  = ath79_spi_claim_bus,
+	.release_bus    = ath79_spi_release_bus,
+	.xfer       = ath79_spi_xfer,
+	.set_speed  = ath79_spi_set_speed,
+	.set_mode   = ath79_spi_set_mode,
+	.cs_info    = ath79_cs_info,
+};
+
+static const struct udevice_id ath79_spi_ids[] = {
+	{ .compatible = "ath79,ath79-spi" },
+	{}
+};
+
+U_BOOT_DRIVER(ath79_spi) = {
+	.name   = "ath79_spi",
+	.id = UCLASS_SPI,
+	.of_match = ath79_spi_ids,
+	.ops    = &ath79_spi_ops,
+	.ofdata_to_platdata = ath79_spi_ofdata_to_platdata,
+	.platdata_auto_alloc_size = sizeof(struct ath79_spi_platdata),
+	.priv_auto_alloc_size = sizeof(struct ath79_spi_priv),
+	.probe  = ath79_spi_probe,
+};
-- 
1.9.1

^ permalink raw reply related	[flat|nested] 39+ messages in thread

* [U-Boot] [PATCH v4 6/8] mips: ath79: add AP121 reference board
       [not found] <1451069788-6786-1-git-send-email-wills.wang@live.com>
                   ` (4 preceding siblings ...)
  2015-12-25 18:56 ` [U-Boot] [PATCH v4 5/8] mips: ath79: add spi driver Wills Wang
@ 2015-12-25 18:56 ` Wills Wang
  2015-12-26 13:52   ` Daniel Schwierzeck
  2015-12-25 18:56 ` [U-Boot] [PATCH v4 7/8] mips: support optimize tuning for same common processor cores Wills Wang
  2015-12-25 18:56 ` [U-Boot] [PATCH v4 8/8] mips: move optimize tuning option from deprecated config.mk to Kconfig Wills Wang
  7 siblings, 1 reply; 39+ messages in thread
From: Wills Wang @ 2015-12-25 18:56 UTC (permalink / raw)
  To: u-boot

Signed-off-by: Wills Wang <wills.wang@live.com>
---

Changes in v4: None
Changes in v3: None
Changes in v2: None

 arch/mips/Kconfig             |  8 +++++
 arch/mips/dts/Makefile        |  2 +-
 arch/mips/dts/ap121.dts       | 37 +++++++++++++++++++
 arch/mips/dts/ar933x.dtsi     | 64 +++++++++++++++++++++++++++++++++
 board/ath79/ap121/Kconfig     | 15 ++++++++
 board/ath79/ap121/MAINTAINERS |  6 ++++
 board/ath79/ap121/Makefile    |  8 +++++
 board/ath79/ap121/README      | 18 ++++++++++
 board/ath79/ap121/ap121.c     | 17 +++++++++
 board/ath79/ap121/config.mk   | 16 +++++++++
 configs/ap121_defconfig       | 42 ++++++++++++++++++++++
 include/configs/ap121.h       | 82 +++++++++++++++++++++++++++++++++++++++++++
 12 files changed, 314 insertions(+), 1 deletion(-)
 create mode 100644 arch/mips/dts/ap121.dts
 create mode 100644 arch/mips/dts/ar933x.dtsi
 create mode 100644 board/ath79/ap121/Kconfig
 create mode 100644 board/ath79/ap121/MAINTAINERS
 create mode 100644 board/ath79/ap121/Makefile
 create mode 100644 board/ath79/ap121/README
 create mode 100644 board/ath79/ap121/ap121.c
 create mode 100644 board/ath79/ap121/config.mk
 create mode 100644 configs/ap121_defconfig
 create mode 100644 include/configs/ap121.h

diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 7f7e258..09b8709 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -51,6 +51,13 @@ config TARGET_PB1X00
 	select SUPPORTS_CPU_MIPS32_R2
 	select SYS_MIPS_CACHE_INIT_RAM_LOAD
 
+config TARGET_AP121
+	bool "Support ap121"
+	select SUPPORTS_BIG_ENDIAN
+	select SUPPORTS_CPU_MIPS32_R1
+	select SUPPORTS_CPU_MIPS32_R2
+	select SYS_MIPS_CACHE_INIT_RAM_LOAD
+
 
 endchoice
 
@@ -59,6 +66,7 @@ source "board/imgtec/malta/Kconfig"
 source "board/micronas/vct/Kconfig"
 source "board/pb1x00/Kconfig"
 source "board/qemu-mips/Kconfig"
+source "board/ath79/ap121/Kconfig"
 
 if MIPS
 
diff --git a/arch/mips/dts/Makefile b/arch/mips/dts/Makefile
index 47b6eb5..6f8b413 100644
--- a/arch/mips/dts/Makefile
+++ b/arch/mips/dts/Makefile
@@ -2,7 +2,7 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-dtb-y +=
+dtb-$(CONFIG_TARGET_AP121) += ap121.dtb
 
 targets += $(dtb-y)
 
diff --git a/arch/mips/dts/ap121.dts b/arch/mips/dts/ap121.dts
new file mode 100644
index 0000000..769458a
--- /dev/null
+++ b/arch/mips/dts/ap121.dts
@@ -0,0 +1,37 @@
+/dts-v1/;
+#include "ar933x.dtsi"
+
+/ {
+	model = "AP121 Reference Board";
+	compatible = "ath79,ap121", "ath79,ar933x";
+
+	aliases {
+		spi0 = &spi0;
+		serial0 = &uart0;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+};
+
+&xtal {
+	clock-frequency = <25000000>;
+};
+
+&uart0 {
+	status = "okay";
+};
+
+&spi0 {
+	spi-max-frequency = <25000000>;
+	status = "okay";
+	spi-flash at 0 {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		compatible = "spi-flash";
+		memory-map = <0x9f000000 0x00800000>;
+		spi-max-frequency = <25000000>;
+		reg = <0>;
+	};
+};
diff --git a/arch/mips/dts/ar933x.dtsi b/arch/mips/dts/ar933x.dtsi
new file mode 100644
index 0000000..64b30f7
--- /dev/null
+++ b/arch/mips/dts/ar933x.dtsi
@@ -0,0 +1,64 @@
+#include "skeleton.dtsi"
+
+/ {
+	compatible = "ath79,ar933x";
+
+	#address-cells = <1>;
+	#size-cells = <1>;
+
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		cpu at 0 {
+			device_type = "cpu";
+			compatible = "mips,mips24Kc";
+			reg = <0>;
+		};
+	};
+
+	clocks {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges;
+
+		xtal: xtal {
+			#clock-cells = <0>;
+			compatible = "fixed-clock";
+			clock-output-names = "xtal";
+		};
+	};
+
+	ahb {
+		compatible = "simple-bus";
+		ranges;
+
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		apb {
+			compatible = "simple-bus";
+			ranges;
+
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			uart0: uart at 18020000 {
+				compatible = "ath79,ar933x-uart";
+				reg = <0x18020000 0x20>;
+
+				status = "disabled";
+			};
+		};
+
+		spi0: spi at 1f000000 {
+			compatible = "ath79,ath79-spi";
+			reg = <0x1f000000 0x10>;
+
+			status = "disabled";
+
+			#address-cells = <1>;
+			#size-cells = <0>;
+		};
+	};
+};
diff --git a/board/ath79/ap121/Kconfig b/board/ath79/ap121/Kconfig
new file mode 100644
index 0000000..88d9eff
--- /dev/null
+++ b/board/ath79/ap121/Kconfig
@@ -0,0 +1,15 @@
+if TARGET_AP121
+
+config SYS_BOARD
+	default "ap121"
+
+config SYS_VENDOR
+	default "ath79"
+
+config SYS_SOC
+	default "ath79"
+
+config SYS_CONFIG_NAME
+	default "ap121"
+
+endif
diff --git a/board/ath79/ap121/MAINTAINERS b/board/ath79/ap121/MAINTAINERS
new file mode 100644
index 0000000..319b521
--- /dev/null
+++ b/board/ath79/ap121/MAINTAINERS
@@ -0,0 +1,6 @@
+AP121 BOARD
+M:	Wills Wang <wills.wang@live.com>
+S:	Maintained
+F:	board/ath79/ap121/
+F:	include/configs/ap121.h
+F:	configs/ap121_defconfig
diff --git a/board/ath79/ap121/Makefile b/board/ath79/ap121/Makefile
new file mode 100644
index 0000000..9132118
--- /dev/null
+++ b/board/ath79/ap121/Makefile
@@ -0,0 +1,8 @@
+#
+# (C) Copyright 2003-2006
+# Wolfgang Denk, DENX Software Engineering, wd at denx.de.
+#
+# SPDX-License-Identifier:	GPL-2.0+
+#
+
+obj-y	= ap121.o
diff --git a/board/ath79/ap121/README b/board/ath79/ap121/README
new file mode 100644
index 0000000..104850f
--- /dev/null
+++ b/board/ath79/ap121/README
@@ -0,0 +1,18 @@
+ATHEROS AP121
+==================
+
+Supported hardware: AP121 referance board.
+
+Files of the AP121 port
+--------------------------
+
+arch/mips/mach-ath79/ar933x/	- The CPU support code for the Atheros ar933x
+arch/mips/include/asm/arch-ath79	- Header files for the Atheros ath79
+board/ath79/ap121/	- AP121 board specific files
+include/configs/ap121.h	- AP121 configuration file
+
+Configure
+-------------------
+
+To configure for the current board
+	make ap121_defconfig
diff --git a/board/ath79/ap121/ap121.c b/board/ath79/ap121/ap121.c
new file mode 100644
index 0000000..f60f88b
--- /dev/null
+++ b/board/ath79/ap121/ap121.c
@@ -0,0 +1,17 @@
+/*
+ * (C) Copyright 2015
+ * Wills Wang, <wills.wang@live.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <command.h>
+#include <asm/mipsregs.h>
+#include <asm/addrspace.h>
+#include <asm/io.h>
+
+int checkboard(void)
+{
+	return 0;
+}
diff --git a/board/ath79/ap121/config.mk b/board/ath79/ap121/config.mk
new file mode 100644
index 0000000..f7dd3b7
--- /dev/null
+++ b/board/ath79/ap121/config.mk
@@ -0,0 +1,16 @@
+#
+# (C) Copyright 2003
+# Wolfgang Denk, DENX Software Engineering, wd at denx.de.
+#
+# SPDX-License-Identifier:	GPL-2.0+
+#
+
+#
+# AP121 referance board, MIPS32 core
+#
+
+# ROM version
+CONFIG_SYS_TEXT_BASE = 0x9f000000
+
+# RAM version
+#CONFIG_SYS_TEXT_BASE = 0x80010000
diff --git a/configs/ap121_defconfig b/configs/ap121_defconfig
new file mode 100644
index 0000000..cec0bb7
--- /dev/null
+++ b/configs/ap121_defconfig
@@ -0,0 +1,42 @@
+CONFIG_MIPS=y
+CONFIG_TARGET_AP121=y
+CONFIG_SYS_MALLOC_F_LEN=0x2000
+CONFIG_SYS_PROMPT="ap121 # "
+CONFIG_OF_CONTROL=y
+CONFIG_DEFAULT_DEVICE_TREE="ap121"
+CONFIG_DM=y
+CONFIG_DM_SERIAL=y
+CONFIG_DM_SPI=y
+CONFIG_DM_SPI_FLASH=y
+CONFIG_ATH79_SPI=y
+CONFIG_SPI_FLASH=y
+CONFIG_SPI_FLASH_BAR=y
+CONFIG_SPI_FLASH_ATMEL=y
+CONFIG_SPI_FLASH_EON=y
+CONFIG_SPI_FLASH_GIGADEVICE=y
+CONFIG_SPI_FLASH_MACRONIX=y
+CONFIG_SPI_FLASH_SPANSION=y
+CONFIG_SPI_FLASH_STMICRO=y
+CONFIG_SPI_FLASH_SST=y
+CONFIG_SPI_FLASH_WINBOND=y
+CONFIG_SPI_FLASH_USE_4K_SECTORS=y
+CONFIG_SPI_FLASH_DATAFLASH=y
+CONFIG_SPI_FLASH_MTD=y
+CONFIG_CMD_DM=y
+CONFIG_CMD_SF=y
+CONFIG_CMD_SPI=y
+# CONFIG_NET is not set
+# CONFIG_CMD_BDI is not set
+# CONFIG_CMD_CONSOLE is not set
+# CONFIG_CMD_IMLS is not set
+# CONFIG_CMD_XIMG is not set
+# CONFIG_CMD_ELF is not set
+# CONFIG_CMD_EXPORTENV is not set
+# CONFIG_CMD_IMPORTENV is not set
+# CONFIG_CMD_EDITENV is not set
+# CONFIG_CMD_CRC32 is not set
+# CONFIG_CMD_FLASH is not set
+# CONFIG_CMD_FPGA is not set
+# CONFIG_CMD_NFS is not set
+# CONFIG_CMD_NET is not set
+CONFIG_USE_PRIVATE_LIBGCC=y
diff --git a/include/configs/ap121.h b/include/configs/ap121.h
new file mode 100644
index 0000000..5a01d11
--- /dev/null
+++ b/include/configs/ap121.h
@@ -0,0 +1,82 @@
+#ifndef __CONFIG_H
+#define __CONFIG_H
+
+#include <linux/kconfig.h>
+#include <linux/sizes.h>
+
+#define CONFIG_ARCH_ATH79
+#define CONFIG_SOC_AR933X
+
+#define CONFIG_DISPLAY_CPUINFO
+#define CONFIG_DISPLAY_BOARDINFO
+
+#define CONFIG_OF_LIBFDT
+
+#define CONFIG_SYS_HZ                   1000
+#define CONFIG_SYS_MHZ                  200
+#define CONFIG_SYS_MIPS_TIMER_FREQ      (CONFIG_SYS_MHZ * 1000000)
+
+/* Cache Configuration */
+#define CONFIG_SYS_DCACHE_SIZE          32 * SZ_1K
+#define CONFIG_SYS_ICACHE_SIZE          64 * SZ_1K
+#define CONFIG_SYS_CACHELINE_SIZE       32
+
+#define CONFIG_SYS_MONITOR_BASE         CONFIG_SYS_TEXT_BASE
+
+#define CONFIG_SYS_MALLOC_LEN           ROUND(0x30000 + 128 * SZ_1K, 0x1000)
+
+#define CONFIG_SYS_BOOTPARAMS_LEN       128 * SZ_1K
+
+#define CONFIG_SYS_SDRAM_BASE           0x80000000
+#define CONFIG_SYS_LOAD_ADDR            0x81000000
+
+#define CONFIG_SYS_INIT_SP_OFFSET       0x20000
+#define CONFIG_SYS_NO_FLASH
+
+#define CONFIG_AR933X_SERIAL
+#define CONFIG_BAUDRATE                 115200
+#define CONFIG_SYS_BAUDRATE_TABLE       {9600, 19200, 38400, 57600, 115200}
+
+#define CONFIG_BOOTDELAY                3
+#define CONFIG_BOOTARGS                 "console=ttyS0,115200 " \
+					"root=/dev/mtdblock2 " \
+					"rootfstype=squashfs"
+#define CONFIG_BOOTCOMMAND              "sf probe;" \
+					"mtdparts default;" \
+					"bootm 0x9f300000"
+#define CONFIG_LZMA
+
+#define MTDIDS_DEFAULT                  "nor0=spi-flash.0"
+#define MTDPARTS_DEFAULT                "mtdparts=spi-flash.0:256k(u-boot)," \
+		"64k(u-boot-env),2752k(rootfs),896k(uImage),64k(NVRAM),64k(ART)"
+
+#define CONFIG_ENV_SPI_MAX_HZ           25000000
+#define CONFIG_ENV_IS_IN_SPI_FLASH
+#define CONFIG_ENV_OFFSET               (256 * SZ_1K)
+#define CONFIG_ENV_SECT_SIZE            (64 * SZ_1K)
+#define CONFIG_ENV_SIZE                 (64 * SZ_1K)
+
+/*
+ * Command
+ */
+#define CONFIG_CMD_MTDPARTS
+
+/* Miscellaneous configurable options */
+#define CONFIG_SYS_CBSIZE               256
+#define CONFIG_SYS_MAXARGS              16
+#define CONFIG_SYS_PBSIZE               (CONFIG_SYS_CBSIZE + \
+					sizeof(CONFIG_SYS_PROMPT) + 16)
+#define CONFIG_SYS_LONGHELP
+#define CONFIG_CMDLINE_EDITING
+#define CONFIG_AUTO_COMPLETE
+#define CONFIG_SYS_HUSH_PARSER
+#define CONFIG_SYS_PROMPT_HUSH_PS2      "> "
+
+/*
+ * Diagnostics
+ */
+#define CONFIG_SYS_MEMTEST_START        0x80100000
+#define CONFIG_SYS_MEMTEST_END          0x83f00000
+#define CONFIG_CMD_MEMTEST
+
+#endif  /* __CONFIG_H */
-- 
1.9.1

^ permalink raw reply related	[flat|nested] 39+ messages in thread

* [U-Boot] [PATCH v4 7/8] mips: support optimize tuning for same common processor cores
       [not found] <1451069788-6786-1-git-send-email-wills.wang@live.com>
                   ` (5 preceding siblings ...)
  2015-12-25 18:56 ` [U-Boot] [PATCH v4 6/8] mips: ath79: add AP121 reference board Wills Wang
@ 2015-12-25 18:56 ` Wills Wang
  2015-12-26  7:30   ` Marek Vasut
  2015-12-26 18:58   ` Daniel Schwierzeck
  2015-12-25 18:56 ` [U-Boot] [PATCH v4 8/8] mips: move optimize tuning option from deprecated config.mk to Kconfig Wills Wang
  7 siblings, 2 replies; 39+ messages in thread
From: Wills Wang @ 2015-12-25 18:56 UTC (permalink / raw)
  To: u-boot

Signed-off-by: Wills Wang <wills.wang@live.com>
---

Changes in v4: None
Changes in v3: None
Changes in v2: None

 arch/mips/Makefile | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/arch/mips/Makefile b/arch/mips/Makefile
index da5fa72..0be5e64 100644
--- a/arch/mips/Makefile
+++ b/arch/mips/Makefile
@@ -2,6 +2,13 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
+tune-$(CONFIG_OPTIMIZE_CPU_MIPS_4KC)	=-mtune=4kc
+tune-$(CONFIG_OPTIMIZE_CPU_MIPS_24KC)	=-mtune=24kc
+
+tune-y := $(tune-y)
+
+PLATFORM_CPPFLAGS += $(tune-y)
+
 head-y := arch/mips/cpu/start.o
 
 libs-y += arch/mips/cpu/
-- 
1.9.1

^ permalink raw reply related	[flat|nested] 39+ messages in thread

* [U-Boot] [PATCH v4 8/8] mips: move optimize tuning option from deprecated config.mk to Kconfig
       [not found] <1451069788-6786-1-git-send-email-wills.wang@live.com>
                   ` (6 preceding siblings ...)
  2015-12-25 18:56 ` [U-Boot] [PATCH v4 7/8] mips: support optimize tuning for same common processor cores Wills Wang
@ 2015-12-25 18:56 ` Wills Wang
  2015-12-26  7:30   ` Marek Vasut
  7 siblings, 1 reply; 39+ messages in thread
From: Wills Wang @ 2015-12-25 18:56 UTC (permalink / raw)
  To: u-boot

config.mk files in mach-xxx directory are deprecated, this patch move
the processor tuning option of compiler into Kconfig

Signed-off-by: Wills Wang <wills.wang@live.com>
---

Changes in v4:
- Add div64 macro for MIPS
- Convert physical address to uncached and cached(KSEG0/1) memory range
  in map_physmem
- Auto calculate baudrate for serial driver
- Move pinctrl code in serial driver into arch/mips/mach-ath79
- Use global_data to save CPU/DDR/AHB clock
- Use get_serial_clock to serial clock source
- Use get_bus_freq instead of hardcode in SPI driver
- Use arch_global_data to save SOC's type, revison and id
- move CPU optimize tuning flag from config.mk to Kconfig

Changes in v3:
- Convert serial driver to driver model
- Convert spi driver to driver model
- Add support for device tree
- Move SoC specific header files into arch/mips/mach-ath79/include/mach
- Optimize assembly code
- Same code style convertion

Changes in v2:
- Move all SoC specific header files into arch/mips/include/asm/arch-ath79
- Check SOC type and extract common code into arch/mips/mach-ath79
- Add a compatible spi driver
- Move serial driver code into drivers/serial
- Add a reference board implemention

 arch/mips/Kconfig               | 9 +++++++++
 arch/mips/mach-au1x00/config.mk | 8 --------
 2 files changed, 9 insertions(+), 8 deletions(-)
 delete mode 100644 arch/mips/mach-au1x00/config.mk

diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 09b8709..8672cc6 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -43,6 +43,7 @@ config TARGET_DBAU1X00
 	select SUPPORTS_CPU_MIPS32_R1
 	select SUPPORTS_CPU_MIPS32_R2
 	select SYS_MIPS_CACHE_INIT_RAM_LOAD
+	select OPTIMIZE_CPU_MIPS_4KC
 
 config TARGET_PB1X00
 	bool "Support pb1x00"
@@ -50,6 +51,7 @@ config TARGET_PB1X00
 	select SUPPORTS_CPU_MIPS32_R1
 	select SUPPORTS_CPU_MIPS32_R2
 	select SYS_MIPS_CACHE_INIT_RAM_LOAD
+	select OPTIMIZE_CPU_MIPS_4KC
 
 config TARGET_AP121
 	bool "Support ap121"
@@ -57,6 +59,7 @@ config TARGET_AP121
 	select SUPPORTS_CPU_MIPS32_R1
 	select SUPPORTS_CPU_MIPS32_R2
 	select SYS_MIPS_CACHE_INIT_RAM_LOAD
+	select OPTIMIZE_CPU_MIPS_24KC
 
 
 endchoice
@@ -174,6 +177,12 @@ config SUPPORTS_CPU_MIPS64_R1
 config SUPPORTS_CPU_MIPS64_R2
 	bool
 
+config OPTIMIZE_CPU_MIPS_4KC
+	bool
+
+config OPTIMIZE_CPU_MIPS_24KC
+	bool
+
 config CPU_MIPS32
 	bool
 	default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
diff --git a/arch/mips/mach-au1x00/config.mk b/arch/mips/mach-au1x00/config.mk
deleted file mode 100644
index 5c89129..0000000
--- a/arch/mips/mach-au1x00/config.mk
+++ /dev/null
@@ -1,8 +0,0 @@
-#
-# (C) Copyright 2011
-# Wolfgang Denk, DENX Software Engineering, wd at denx.de.
-#
-# SPDX-License-Identifier:	GPL-2.0+
-#
-
-PLATFORM_CPPFLAGS += -mtune=4kc
-- 
1.9.1

^ permalink raw reply related	[flat|nested] 39+ messages in thread

* [U-Boot] [PATCH v4 1/8] include: Add support for "do_div" macro
  2015-12-25 18:56 ` [U-Boot] [PATCH v4 1/8] include: Add support for "do_div" macro Wills Wang
@ 2015-12-26  7:24   ` Marek Vasut
  2015-12-26 15:48     ` Wills Wang
  2015-12-26 13:09   ` Daniel Schwierzeck
  1 sibling, 1 reply; 39+ messages in thread
From: Marek Vasut @ 2015-12-26  7:24 UTC (permalink / raw)
  To: u-boot

On Friday, December 25, 2015 at 07:56:21 PM, Wills Wang wrote:
> Use the div64 header files from the kernel.
> 
> Signed-off-by: Wills Wang <wills.wang@live.com>
> ---

We already have include/div64.h , is that what you're after ?

Best regards,
Marek Vasut

^ permalink raw reply	[flat|nested] 39+ messages in thread

* [U-Boot] [PATCH v4 2/8] mips: implement to access the KSEG0/1 memory range in map_physmem
  2015-12-25 18:56 ` [U-Boot] [PATCH v4 2/8] mips: implement to access the KSEG0/1 memory range in map_physmem Wills Wang
@ 2015-12-26  7:25   ` Marek Vasut
  0 siblings, 0 replies; 39+ messages in thread
From: Marek Vasut @ 2015-12-26  7:25 UTC (permalink / raw)
  To: u-boot

On Friday, December 25, 2015 at 07:56:22 PM, Wills Wang wrote:
> U-boot just use the no MMU virtual address segment(KSEG0/1), this
> patch enable access the uncached memory range(KSEG1) by flag
> "MAP_NOCACHE", other flag for KSEG0 access.
> 
> Signed-off-by: Wills Wang <wills.wang@live.com>
> ---
> 
> Changes in v4: None
> Changes in v3: None
> Changes in v2: None
> 
>  arch/mips/include/asm/io.h | 7 +++++--
>  1 file changed, 5 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/mips/include/asm/io.h b/arch/mips/include/asm/io.h
> index a7ab087..943053d 100644
> --- a/arch/mips/include/asm/io.h
> +++ b/arch/mips/include/asm/io.h
> @@ -485,7 +485,7 @@ static inline void sync(void)
>   * that can be used to access the memory range with the caching
>   * properties specified by "flags".
>   */
> -#define MAP_NOCACHE	(0)
> +#define MAP_NOCACHE	(1)

I _think_ this is something someone familiar with mips has to review,
since I think this has a potential to break a lot of machines.

>  #define MAP_WRCOMBINE	(0)
>  #define MAP_WRBACK	(0)
>  #define MAP_WRTHROUGH	(0)
> @@ -493,7 +493,10 @@ static inline void sync(void)
>  static inline void *
>  map_physmem(phys_addr_t paddr, unsigned long len, unsigned long flags)
>  {
> -	return (void *)paddr;
> +	if (flags)
> +		return (void *)KSEG1ADDR(paddr);
> +	else
> +		return (void *)KSEG0ADDR(paddr);
>  }
> 
>  /*

Best regards,
Marek Vasut

^ permalink raw reply	[flat|nested] 39+ messages in thread

* [U-Boot] [PATCH v4 3/8] mips: add base support for atheros ath79 based SOCs
  2015-12-25 18:56 ` [U-Boot] [PATCH v4 3/8] mips: add base support for atheros ath79 based SOCs Wills Wang
@ 2015-12-26  7:28   ` Marek Vasut
  2015-12-26 16:17     ` Wills Wang
  0 siblings, 1 reply; 39+ messages in thread
From: Marek Vasut @ 2015-12-26  7:28 UTC (permalink / raw)
  To: u-boot

On Friday, December 25, 2015 at 07:56:23 PM, Wills Wang wrote:
> This patch enable work for ar933x SOC, tested on ar9331 board.
> 
> Signed-off-by: Wills Wang <wills.wang@live.com>
> ---

[...]

> +int arch_cpu_init(void)
> +{
> +	u32 val;
> +
> +	/*
> +	 * Set GPIO10 (UART_SO) as output and enable UART,
> +	 * BIT(15) in GPIO_FUNCTION_1 register must be written with 1
> +	 */
> +	val = readl(KSEG1ADDR(AR71XX_GPIO_BASE + AR71XX_GPIO_REG_OE));
> +	val |= BIT(10);
> +	writel(val, KSEG1ADDR(AR71XX_GPIO_BASE + AR71XX_GPIO_REG_OE));
> +
> +	val = readl(KSEG1ADDR(AR71XX_GPIO_BASE + AR71XX_GPIO_REG_FUNC));
> +	val |= (AR933X_GPIO_FUNC_UART_EN | BIT(15));
> +	writel(val, KSEG1ADDR(AR71XX_GPIO_BASE + AR71XX_GPIO_REG_FUNC));
> +	return 0;
> +}

Pinmux should be done on a per-board basis, not per-CPU. Also, please use
setbits_le32().

> diff --git a/arch/mips/mach-ath79/ar933x/ddr_tap.S
> b/arch/mips/mach-ath79/ar933x/ddr_tap.S new file mode 100644
> index 0000000..18c57de
> --- /dev/null
> +++ b/arch/mips/mach-ath79/ar933x/ddr_tap.S
> @@ -0,0 +1,268 @@
> +/*
> + * (C) Copyright 2015
> + * Wills Wang, <wills.wang@live.com>
> + *
> + * SPDX-License-Identifier: GPL-2.0+
> + */
> +
> +#include <config.h>
> +#include <asm/asm.h>
> +#include <asm/regdef.h>
> +#include <asm/mipsregs.h>
> +#include <asm/addrspace.h>
> +#include <asm/arch/ar71xx_regs.h>
> +
> +#define DRAM_K0(x)      KSEG0ADDR(x)
> +#define DRAM_K1(x)      KSEG1ADDR(x)
> +
> +	.text
> +	.set noreorder
> +
> +LEAF(ddr_tap_init)
> +	/* Tap settings for the DDR */
> +	li      t0, 0xffffffff
> +	li      t1, DRAM_K0(0x500000)
> +	sw      t0, 0x0(t1)
> +	sw      t0, 0x4(t1)
> +	sw      t0, 0x8(t1)
> +	sw      t0, 0xc(t1)
> +	nop
> +	nop

This should be C code, pretty please.

[...]

> diff --git a/arch/mips/mach-ath79/ar933x/lowlevel_init.S
> b/arch/mips/mach-ath79/ar933x/lowlevel_init.S new file mode 100644
> index 0000000..72509ca
> --- /dev/null
> +++ b/arch/mips/mach-ath79/ar933x/lowlevel_init.S

lowlevel_init.S should be C code too, I don't see anything which would
require this to be ASM .

[...]

> diff --git a/arch/mips/mach-ath79/cpu.c b/arch/mips/mach-ath79/cpu.c
> new file mode 100644
> index 0000000..681127c
> --- /dev/null
> +++ b/arch/mips/mach-ath79/cpu.c
> @@ -0,0 +1,171 @@
> +/*
> + * (C) Copyright 2015
> + * Wills Wang, <wills.wang@live.com>
> + *
> + * SPDX-License-Identifier:	GPL-2.0+
> + */
> +
> +#include <common.h>
> +#include <asm/io.h>
> +#include <asm/addrspace.h>
> +#include <asm/types.h>
> +#include <asm/arch/ath79.h>
> +#include <asm/arch/ar71xx_regs.h>
> +
> +int print_cpuinfo(void)
> +{
> +	enum ath79_soc_type soc = ATH79_SOC_UNKNOWN;
> +	char *chip = "????";
> +	u32 id, major, minor;
> +	u32 rev = 0;
> +	u32 ver = 1;
> +
> +	id = readl(KSEG1ADDR(AR71XX_RESET_BASE + AR71XX_RESET_REG_REV_ID));
> +	major = id & REV_ID_MAJOR_MASK;
> +
> +	switch (major) {
> +	case REV_ID_MAJOR_AR71XX:
> +		minor = id & AR71XX_REV_ID_MINOR_MASK;
> +		rev = id >> AR71XX_REV_ID_REVISION_SHIFT;
> +		rev &= AR71XX_REV_ID_REVISION_MASK;
> +		switch (minor) {

I did review this already and my suggestions were ignored :-( I stop here ...

[...]

^ permalink raw reply	[flat|nested] 39+ messages in thread

* [U-Boot] [PATCH v4 7/8] mips: support optimize tuning for same common processor cores
  2015-12-25 18:56 ` [U-Boot] [PATCH v4 7/8] mips: support optimize tuning for same common processor cores Wills Wang
@ 2015-12-26  7:30   ` Marek Vasut
  2015-12-26 18:58   ` Daniel Schwierzeck
  1 sibling, 0 replies; 39+ messages in thread
From: Marek Vasut @ 2015-12-26  7:30 UTC (permalink / raw)
  To: u-boot

On Friday, December 25, 2015 at 07:56:27 PM, Wills Wang wrote:

Missing commit message. There is exactly zero explanation why this patch
is necessary/beneficial/whatever . I just do not understand why we should
pick this patch.

> Signed-off-by: Wills Wang <wills.wang@live.com>
> ---
> 
> Changes in v4: None
> Changes in v3: None
> Changes in v2: None
> 
>  arch/mips/Makefile | 7 +++++++
>  1 file changed, 7 insertions(+)
> 
> diff --git a/arch/mips/Makefile b/arch/mips/Makefile
> index da5fa72..0be5e64 100644
> --- a/arch/mips/Makefile
> +++ b/arch/mips/Makefile
> @@ -2,6 +2,13 @@
>  # SPDX-License-Identifier:	GPL-2.0+
>  #
> 
> +tune-$(CONFIG_OPTIMIZE_CPU_MIPS_4KC)	=-mtune=4kc
> +tune-$(CONFIG_OPTIMIZE_CPU_MIPS_24KC)	=-mtune=24kc
> +
> +tune-y := $(tune-y)
> +
> +PLATFORM_CPPFLAGS += $(tune-y)
> +
>  head-y := arch/mips/cpu/start.o
> 
>  libs-y += arch/mips/cpu/

Best regards,
Marek Vasut

^ permalink raw reply	[flat|nested] 39+ messages in thread

* [U-Boot] [PATCH v4 8/8] mips: move optimize tuning option from deprecated config.mk to Kconfig
  2015-12-25 18:56 ` [U-Boot] [PATCH v4 8/8] mips: move optimize tuning option from deprecated config.mk to Kconfig Wills Wang
@ 2015-12-26  7:30   ` Marek Vasut
  2015-12-26 17:33     ` Wills Wang
  0 siblings, 1 reply; 39+ messages in thread
From: Marek Vasut @ 2015-12-26  7:30 UTC (permalink / raw)
  To: u-boot

On Friday, December 25, 2015 at 07:56:28 PM, Wills Wang wrote:
> config.mk files in mach-xxx directory are deprecated, this patch move
> the processor tuning option of compiler into Kconfig
> 
> Signed-off-by: Wills Wang <wills.wang@live.com>
> ---
> 
> Changes in v4:
> - Add div64 macro for MIPS
> - Convert physical address to uncached and cached(KSEG0/1) memory range
>   in map_physmem
> - Auto calculate baudrate for serial driver
> - Move pinctrl code in serial driver into arch/mips/mach-ath79
> - Use global_data to save CPU/DDR/AHB clock
> - Use get_serial_clock to serial clock source
> - Use get_bus_freq instead of hardcode in SPI driver
> - Use arch_global_data to save SOC's type, revison and id
> - move CPU optimize tuning flag from config.mk to Kconfig

The changelog should be at patch 0/8 and there should be a dedicated changelog
with each patch. The changelog for entire series should not be with patch 8/8.

Best regards,
Marek Vasut

^ permalink raw reply	[flat|nested] 39+ messages in thread

* [U-Boot] [PATCH v4 1/8] include: Add support for "do_div" macro
  2015-12-25 18:56 ` [U-Boot] [PATCH v4 1/8] include: Add support for "do_div" macro Wills Wang
  2015-12-26  7:24   ` Marek Vasut
@ 2015-12-26 13:09   ` Daniel Schwierzeck
  2015-12-26 16:54     ` Wills Wang
  1 sibling, 1 reply; 39+ messages in thread
From: Daniel Schwierzeck @ 2015-12-26 13:09 UTC (permalink / raw)
  To: u-boot



Am 25.12.2015 um 19:56 schrieb Wills Wang:
> Use the div64 header files from the kernel.
> 
> Signed-off-by: Wills Wang <wills.wang@live.com>
> ---
> 
> Changes in v4: None
> Changes in v3: None
> Changes in v2: None
> 
>  arch/mips/include/asm/div64.h | 68 +++++++++++++++++++++++++++++++++++++++++++
>  include/asm-generic/div64.h   | 59 +++++++++++++++++++++++++++++++++++++
>  2 files changed, 127 insertions(+)
>  create mode 100644 arch/mips/include/asm/div64.h
>  create mode 100644 include/asm-generic/div64.h

please drop this patch, we already have a generic do_div()
implementation. Also we do not really need an assembly optimized
implementation for MIPS.

> 
> diff --git a/arch/mips/include/asm/div64.h b/arch/mips/include/asm/div64.h
> new file mode 100644
> index 0000000..e5e6782
> --- /dev/null
> +++ b/arch/mips/include/asm/div64.h
> @@ -0,0 +1,68 @@
> +/*
> + * Copyright (C) 2000, 2004  Maciej W. Rozycki
> + * Copyright (C) 2003, 07 Ralf Baechle (ralf at linux-mips.org)
> + *
> + * This file is subject to the terms and conditions of the GNU General Public
> + * License.  See the file "COPYING" in the main directory of this archive
> + * for more details.
> + */
> +#ifndef __ASM_DIV64_H
> +#define __ASM_DIV64_H
> +
> +#include <asm-generic/div64.h>
> +
> +#if BITS_PER_LONG == 64
> +
> +#include <linux/types.h>
> +
> +/*
> + * No traps on overflows for any of these...
> + */
> +
> +#define __div64_32(n, base)						\
> +({									\
> +	unsigned long __cf, __tmp, __tmp2, __i;				\
> +	unsigned long __quot32, __mod32;				\
> +	unsigned long __high, __low;					\
> +	unsigned long long __n;						\
> +									\
> +	__high = *__n >> 32;						\
> +	__low = __n;							\
> +	__asm__(							\
> +	"	.set	push\n"						\
> +	"	.set	noat\n"						\
> +	"	.set	noreorder\n"					\
> +	"	move	%2, $0\n"					\
> +	"	move	%3, $0\n"					\
> +	"	b	1f\n"						\
> +	"	 li	%4, 0x21\n"					\
> +	"0:\n"								\
> +	"	sll	$1, %0, 0x1\n"					\
> +	"	srl	%3, %0, 0x1f\n"					\
> +	"	or	%0, $1, %5\n"					\
> +	"	sll	%1, %1, 0x1\n"					\
> +	"	sll	%2, %2, 0x1\n"					\
> +	"1:\n"								\
> +	"	bnez	%3, 2f\n"					\
> +	"	 sltu	%5, %0, %z6\n"					\
> +	"	bnez	%5, 3f\n"					\
> +	"2:\n"								\
> +	"	 addiu	%4, %4, -1\n"					\
> +	"	subu	%0, %0, %z6\n"					\
> +	"	addiu	%2, %2, 1\n"					\
> +	"3:\n"								\
> +	"	bnez	%4, 0b\n\t"					\
> +	"	 srl	%5, %1, 0x1f\n\t"				\
> +	"	.set	pop"						\
> +	: "=&r" (__mod32), "=&r" (__tmp),				\
> +	  "=&r" (__quot32), "=&r" (__cf),				\
> +	  "=&r" (__i), "=&r" (__tmp2)					\
> +	: "Jr" (base), "0" (__high), "1" (__low));			\
> +									\
> +	(__n) = __quot32;						\
> +	__mod32;							\
> +})
> +
> +#endif /* BITS_PER_LONG == 64 */
> +
> +#endif /* __ASM_DIV64_H */
> diff --git a/include/asm-generic/div64.h b/include/asm-generic/div64.h
> new file mode 100644
> index 0000000..d689fc4
> --- /dev/null
> +++ b/include/asm-generic/div64.h
> @@ -0,0 +1,59 @@
> +/*
> + * Copyright (C) 2003 Bernardo Innocenti <bernie@develer.com>
> + * Based on former asm-ppc/div64.h and asm-m68knommu/div64.h
> + *
> + * The semantics of do_div() are:
> + *
> + * uint32_t do_div(uint64_t *n, uint32_t base)
> + * {
> + *  uint32_t remainder = *n % base;
> + *  *n = *n / base;
> + *  return remainder;
> + * }
> + *
> + * NOTE: macro parameter n is evaluated multiple times,
> + *       beware of side effects!
> + */
> +
> +#ifndef _ASM_GENERIC_DIV64_H
> +#define _ASM_GENERIC_DIV64_H
> +
> +#include <linux/types.h>
> +#include <linux/compiler.h>
> +
> +#if BITS_PER_LONG == 64
> +
> +# define do_div(n, base) ({					\
> +	uint32_t __base = (base);				\
> +	uint32_t __rem;						\
> +	__rem = ((uint64_t)(n)) % __base;			\
> +	(n) = ((uint64_t)(n)) / __base;				\
> +	__rem;							\
> +})
> +
> +#elif BITS_PER_LONG == 32
> +
> +extern uint32_t __div64_32(uint64_t *dividend, uint32_t divisor);
> +
> +/* The unnecessary pointer compare is there
> + * to check for type safety (n must be 64bit)
> + */
> +# define do_div(n, base) ({				\
> +	uint32_t __base = (base);			\
> +	uint32_t __rem;					\
> +	(void)(((typeof((n)) *)0) == ((uint64_t *)0));	\
> +	if (likely(((n) >> 32) == 0)) {			\
> +		__rem = (uint32_t)(n) % __base;		\
> +		(n) = (uint32_t)(n) / __base;		\
> +	} else						\
> +		__rem = __div64_32(&(n), __base);	\
> +	__rem;						\
> +})
> +
> +#else /* BITS_PER_LONG == ?? */
> +
> +# error do_div() does not yet support the C64
> +
> +#endif /* BITS_PER_LONG */
> +
> +#endif /* _ASM_GENERIC_DIV64_H */
> 

-- 
- Daniel

^ permalink raw reply	[flat|nested] 39+ messages in thread

* [U-Boot] [PATCH v4 4/8] mips: ath79: add serial driver for ar933x SOC
  2015-12-25 18:56 ` [U-Boot] [PATCH v4 4/8] mips: ath79: add serial driver for ar933x SOC Wills Wang
@ 2015-12-26 13:20   ` Daniel Schwierzeck
  2015-12-26 16:54     ` Wills Wang
                       ` (2 more replies)
  0 siblings, 3 replies; 39+ messages in thread
From: Daniel Schwierzeck @ 2015-12-26 13:20 UTC (permalink / raw)
  To: u-boot



Am 25.12.2015 um 19:56 schrieb Wills Wang:
> Signed-off-by: Wills Wang <wills.wang@live.com>
> ---
> 
> Changes in v4: None
> Changes in v3: None
> Changes in v2: None
> 
>  drivers/serial/Makefile        |   1 +
>  drivers/serial/serial_ar933x.c | 225 +++++++++++++++++++++++++++++++++++++++++
>  2 files changed, 226 insertions(+)
>  create mode 100644 drivers/serial/serial_ar933x.c
> 
> diff --git a/drivers/serial/Makefile b/drivers/serial/Makefile
> index dd87147..9a7ad89 100644
> --- a/drivers/serial/Makefile
> +++ b/drivers/serial/Makefile
> @@ -17,6 +17,7 @@ endif
>  
>  obj-$(CONFIG_ALTERA_UART) += altera_uart.o
>  obj-$(CONFIG_ALTERA_JTAG_UART) += altera_jtag_uart.o
> +obj-$(CONFIG_AR933X_SERIAL) += serial_ar933x.o
>  obj-$(CONFIG_ARM_DCC) += arm_dcc.o
>  obj-$(CONFIG_ATMEL_USART) += atmel_usart.o
>  obj-$(CONFIG_EFI_APP) += serial_efi.o
> diff --git a/drivers/serial/serial_ar933x.c b/drivers/serial/serial_ar933x.c
> new file mode 100644
> index 0000000..efca93c
> --- /dev/null
> +++ b/drivers/serial/serial_ar933x.c
> @@ -0,0 +1,225 @@
> +/*
> + * (C) Copyright 2015
> + * Wills Wang, <wills.wang@live.com>
> + *
> + * SPDX-License-Identifier: GPL-2.0+
> + */
> +
> +#include <common.h>
> +#include <dm.h>
> +#include <errno.h>
> +#include <serial.h>
> +#include <asm/io.h>
> +#include <asm/addrspace.h>
> +#include <asm/div64.h>

use the existing and generic implementation in include/div64.h

> +#include <asm/types.h>
> +#include <asm/arch/ar71xx_regs.h>

#include <mach/ar71xx_regs.h>

I wonder how you can stil compile your code


> +
> +DECLARE_GLOBAL_DATA_PTR;
> +
> +#define AR933X_UART_DATA_REG            0x00
> +#define AR933X_UART_CS_REG              0x04
> +#define AR933X_UART_CLK_REG             0x08
> +
> +#define AR933X_UART_DATA_TX_RX_MASK     0xff
> +#define AR933X_UART_DATA_RX_CSR         BIT(8)
> +#define AR933X_UART_DATA_TX_CSR         BIT(9)
> +#define AR933X_UART_CS_IF_MODE_S        2
> +#define AR933X_UART_CS_IF_MODE_M        0x3
> +#define AR933X_UART_CS_IF_MODE_DTE      1
> +#define AR933X_UART_CS_IF_MODE_DCE      2
> +#define AR933X_UART_CS_TX_RDY_ORIDE     BIT(7)
> +#define AR933X_UART_CS_RX_RDY_ORIDE     BIT(8)
> +#define AR933X_UART_CLK_STEP_M          0xffff
> +#define AR933X_UART_CLK_SCALE_M         0xfff
> +#define AR933X_UART_CLK_SCALE_S         16
> +#define AR933X_UART_CLK_STEP_S          0
> +
> +struct ar933x_serial_platdata {
> +	void __iomem *regs;
> +};

if you always support device-tree, you do not need platform data

> +
> +struct ar933x_serial_priv {
> +	void __iomem *regs;
> +};
> +
> +static inline u32 ar933x_serial_read(struct udevice *dev, u32 offset)
> +{
> +	struct ar933x_serial_priv *priv = dev_get_priv(dev);
> +	return readl(priv->regs + offset);
> +}
> +
> +static inline void ar933x_serial_write(struct udevice *dev,
> +					u32 val, u32 offset)
> +{
> +	struct ar933x_serial_priv *priv = dev_get_priv(dev);
> +	writel(val, priv->regs + offset);
> +}
> +
> +/*
> + * baudrate = (clk / (scale + 1)) * (step * (1 / 2^17))
> + */
> +static u32 ar933x_serial_get_baud(u32 clk, u32 scale, u32 step)
> +{
> +	u64 t;
> +	u32 div;
> +
> +	div = (2 << 16) * (scale + 1);
> +	t = clk;
> +	t *= step;
> +	t += (div / 2);
> +	do_div(t, div);
> +
> +	return t;
> +}
> +
> +static void ar933x_serial_get_scale_step(u32 clk, u32 baud,
> +				       u32 *scale, u32 *step)
> +{
> +	u32 tscale, baudrate;
> +	long min_diff;
> +
> +	*scale = 0;
> +	*step = 0;
> +
> +	min_diff = baud;
> +	for (tscale = 0; tscale < AR933X_UART_CLK_SCALE_M; tscale++) {
> +		u64 tstep;
> +		int diff;
> +
> +		tstep = baud * (tscale + 1);
> +		tstep *= (2 << 16);
> +		do_div(tstep, clk);
> +
> +		if (tstep > AR933X_UART_CLK_STEP_M)
> +			break;
> +
> +		baudrate = ar933x_serial_get_baud(clk, tscale, tstep);
> +		diff = abs(baudrate - baud);
> +		if (diff < min_diff) {
> +			min_diff = diff;
> +			*scale = tscale;
> +			*step = tstep;
> +		}
> +	}
> +}
> +
> +static int ar933x_serial_setbrg(struct udevice *dev, int baudrate)
> +{
> +	u32 val, scale, step;
> +
> +	val = get_serial_clock();
> +	ar933x_serial_get_scale_step(val, baudrate, &scale, &step);
> +
> +	val  = (scale & AR933X_UART_CLK_SCALE_M)
> +			<< AR933X_UART_CLK_SCALE_S;
> +	val |= (step & AR933X_UART_CLK_STEP_M)
> +			<< AR933X_UART_CLK_STEP_S;
> +	ar933x_serial_write(dev, val, AR933X_UART_CLK_REG);
> +
> +	return 0;
> +}
> +
> +static int ar933x_serial_putc(struct udevice *dev, const char c)
> +{
> +	u32 data;
> +
> +	if (c == '\n')
> +		ar933x_serial_putc(dev, '\r');

remove this, the serial core driver takes care of it

> +
> +	do {
> +		data = ar933x_serial_read(dev, AR933X_UART_DATA_REG);
> +	} while (!(data & AR933X_UART_DATA_TX_CSR));

remove this, the serial core driver takes care of it via your pending
callback (ar933x_serial_pending)

> +
> +	data  = (u32)c | AR933X_UART_DATA_TX_CSR;
> +	ar933x_serial_write(dev, data, AR933X_UART_DATA_REG);
> +
> +	return 0;
> +}
> +
> +static int ar933x_serial_getc(struct udevice *dev)
> +{
> +	u32 data;
> +
> +	do {
> +		data = ar933x_serial_read(dev, AR933X_UART_DATA_REG);
> +	} while (!(data & AR933X_UART_DATA_RX_CSR));

dito

> +
> +	data = ar933x_serial_read(dev, AR933X_UART_DATA_REG);
> +	ar933x_serial_write(dev, AR933X_UART_DATA_RX_CSR,
> +			    AR933X_UART_DATA_REG);
> +	return data & AR933X_UART_DATA_TX_RX_MASK;
> +}
> +
> +static int ar933x_serial_pending(struct udevice *dev, bool input)
> +{
> +	u32 data;
> +
> +	data = ar933x_serial_read(dev, AR933X_UART_DATA_REG);
> +	if (input)
> +		return (data & AR933X_UART_DATA_RX_CSR) ? 1 : 0;
> +	else
> +		return (data & AR933X_UART_DATA_TX_CSR) ? 0 : 1;
> +}
> +
> +static int ar933x_serial_probe(struct udevice *dev)
> +{
> +	struct ar933x_serial_priv *priv = dev_get_priv(dev);
> +	struct ar933x_serial_platdata *plat = dev_get_platdata(dev);
> +	u32 val;
> +
> +	priv->regs = plat->regs;
> +
> +	/*
> +	 * UART controller configuration:
> +	 * - no DMA
> +	 * - no interrupt
> +	 * - DCE mode
> +	 * - no flow control
> +	 * - set RX ready oride
> +	 * - set TX ready oride
> +	 */
> +	val = (AR933X_UART_CS_IF_MODE_DCE << AR933X_UART_CS_IF_MODE_S) |
> +	      AR933X_UART_CS_TX_RDY_ORIDE | AR933X_UART_CS_RX_RDY_ORIDE;
> +	ar933x_serial_write(dev, val, AR933X_UART_CS_REG);
> +	return 0;
> +}
> +
> +static int ar933x_serial_ofdata_to_platdata(struct udevice *dev)
> +{
> +	struct ar933x_serial_platdata *plat = dev_get_platdata(dev);
> +	fdt_addr_t addr;
> +
> +	addr = dev_get_addr(dev);
> +	if (addr == FDT_ADDR_T_NONE)
> +		return -EINVAL;
> +
> +	plat->regs = map_physmem(addr,
> +				 AR933X_UART_SIZE,
> +				 MAP_NOCACHE);

move this code to function ar933x_serial_probe and drop this function

> +	return 0;
> +}
> +
> +static const struct dm_serial_ops ar933x_serial_ops = {
> +	.putc = ar933x_serial_putc,
> +	.pending = ar933x_serial_pending,
> +	.getc = ar933x_serial_getc,
> +	.setbrg = ar933x_serial_setbrg,
> +};
> +
> +static const struct udevice_id ar933x_serial_ids[] = {
> +	{ .compatible = "ath79,ar933x-uart" },
> +	{ }
> +};
> +
> +U_BOOT_DRIVER(serial_ar933x) = {
> +	.name   = "serial_ar933x",
> +	.id = UCLASS_SERIAL,
> +	.of_match = ar933x_serial_ids,
> +	.ofdata_to_platdata = ar933x_serial_ofdata_to_platdata,
> +	.platdata_auto_alloc_size = sizeof(struct ar933x_serial_platdata),

drop the two lines, you do not need to allocate platdata

> +	.priv_auto_alloc_size = sizeof(struct ar933x_serial_priv),
> +	.probe = ar933x_serial_probe,
> +	.ops    = &ar933x_serial_ops,
> +	.flags = DM_FLAG_PRE_RELOC,
> +};
> 

-- 
- Daniel

^ permalink raw reply	[flat|nested] 39+ messages in thread

* [U-Boot] [PATCH v4 5/8] mips: ath79: add spi driver
  2015-12-25 18:56 ` [U-Boot] [PATCH v4 5/8] mips: ath79: add spi driver Wills Wang
@ 2015-12-26 13:23   ` Daniel Schwierzeck
  2015-12-26 16:56     ` Wills Wang
  0 siblings, 1 reply; 39+ messages in thread
From: Daniel Schwierzeck @ 2015-12-26 13:23 UTC (permalink / raw)
  To: u-boot



Am 25.12.2015 um 19:56 schrieb Wills Wang:
> Signed-off-by: Wills Wang <wills.wang@live.com>
> ---
> 
> Changes in v4: None
> Changes in v3: None
> Changes in v2: None
> 
>  drivers/spi/Kconfig     |   8 ++
>  drivers/spi/Makefile    |   1 +
>  drivers/spi/ath79_spi.c | 211 ++++++++++++++++++++++++++++++++++++++++++++++++
>  3 files changed, 220 insertions(+)
>  create mode 100644 drivers/spi/ath79_spi.c
> 
> diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig
> index 2cdb110..a9e1d31 100644
> --- a/drivers/spi/Kconfig
> +++ b/drivers/spi/Kconfig
> @@ -23,6 +23,14 @@ config ALTERA_SPI
>  	  IP core. Please find details on the "Embedded Peripherals IP
>  	  User Guide" of Altera.
>  
> +config ATH79_SPI
> +	bool "Atheros SPI driver"
> +	help
> +	  Enable the Atheros ar7xxx/ar9xxx SoC SPI driver, it was used
> +	  to access SPI NOR flash and other SPI peripherals. This driver
> +	  uses driver model and requires a device tree binding to
> +	  operate.
> +
>  config CADENCE_QSPI
>  	bool "Cadence QSPI driver"
>  	help
> diff --git a/drivers/spi/Makefile b/drivers/spi/Makefile
> index 3eca745..7fb2926 100644
> --- a/drivers/spi/Makefile
> +++ b/drivers/spi/Makefile
> @@ -17,6 +17,7 @@ endif
>  
>  obj-$(CONFIG_ALTERA_SPI) += altera_spi.o
>  obj-$(CONFIG_ARMADA100_SPI) += armada100_spi.o
> +obj-$(CONFIG_ATH79_SPI) += ath79_spi.o
>  obj-$(CONFIG_ATMEL_DATAFLASH_SPI) += atmel_dataflash_spi.o
>  obj-$(CONFIG_ATMEL_SPI) += atmel_spi.o
>  obj-$(CONFIG_BFIN_SPI) += bfin_spi.o
> diff --git a/drivers/spi/ath79_spi.c b/drivers/spi/ath79_spi.c
> new file mode 100644
> index 0000000..dcce584
> --- /dev/null
> +++ b/drivers/spi/ath79_spi.c
> @@ -0,0 +1,211 @@
> +/*
> + * (C) Copyright 2015
> + * Wills Wang, <wills.wang@live.com>
> + *
> + * SPDX-License-Identifier:	GPL-2.0+
> + */
> +
> +#include <common.h>
> +#include <spi.h>
> +#include <dm.h>
> +#include <errno.h>
> +#include <asm/io.h>
> +#include <asm/addrspace.h>
> +#include <asm/types.h>
> +#include <asm/arch/ar71xx_regs.h>

#include <mach/ar71xx_regs.h>

> +
> +/* CLOCK_DIVIDER = 3 (SPI clock = 200 / 8 ~ 25 MHz) */
> +#define SPI_CLK_DIV(x)     (((x) >> 1) - 1)
> +
> +struct ath79_spi_platdata {
> +	void __iomem *regs;
> +};

again, platdata is not needed

> +
> +struct ath79_spi_priv {
> +	void __iomem *regs;
> +};
> +
> +static inline u32 ath79_spi_read(struct udevice *bus, u32 offset)
> +{
> +	struct ath79_spi_priv *priv = dev_get_priv(bus);
> +	return readl(priv->regs + offset);
> +}
> +
> +static inline void ath79_spi_write(struct udevice *bus,
> +					u32 val, u32 offset)
> +{
> +	struct ath79_spi_priv *priv = dev_get_priv(bus);
> +	writel(val, priv->regs + offset);
> +}
> +
> +static int ath79_spi_claim_bus(struct udevice *dev)
> +{
> +	return 0;
> +}
> +
> +static int ath79_spi_release_bus(struct udevice *dev)
> +{
> +	return 0;
> +}
> +
> +static int ath79_spi_xfer(struct udevice *dev, unsigned int bitlen,
> +		const void *dout, void *din, unsigned long flags)
> +{
> +	struct udevice *bus = dev->parent;
> +	struct dm_spi_slave_platdata *slave = dev_get_parent_platdata(dev);
> +	uint8_t *rx = din;
> +	const uint8_t *tx = dout;
> +	uint8_t curbyte, curbitlen, restbits;
> +	uint32_t bytes = bitlen / 8;
> +	uint32_t out;
> +	uint32_t in;
> +
> +	if (flags & SPI_XFER_BEGIN) {
> +		ath79_spi_write(bus, AR71XX_SPI_FS_GPIO, AR71XX_SPI_REG_FS);
> +		ath79_spi_write(bus, AR71XX_SPI_IOC_CS_ALL, AR71XX_SPI_REG_IOC);
> +	}
> +
> +	restbits = (bitlen % 8);
> +	if (restbits)
> +		bytes++;
> +
> +	/* enable chip select */
> +	out = AR71XX_SPI_IOC_CS_ALL & ~(AR71XX_SPI_IOC_CS(slave->cs));
> +	while (bytes--) {
> +		curbyte = 0;
> +		if (tx)
> +			curbyte = *tx++;
> +
> +		if (restbits) {
> +			curbitlen = restbits;
> +			curbyte <<= 8 - restbits;
> +		} else {
> +			curbitlen = 8;
> +		}
> +
> +		/* clock starts at inactive polarity */
> +		for (curbyte <<= (8 - curbitlen); curbitlen; curbitlen--) {
> +			if (curbyte & 0x80)
> +				out |= AR71XX_SPI_IOC_DO;
> +			else
> +				out &= ~(AR71XX_SPI_IOC_DO);
> +
> +			/* setup MSB (to slave) on trailing edge */
> +			ath79_spi_write(bus, out, AR71XX_SPI_REG_IOC);
> +			ath79_spi_write(bus, out | AR71XX_SPI_IOC_CLK,
> +					AR71XX_SPI_REG_IOC);
> +			curbyte <<= 1;
> +		}
> +
> +		in = ath79_spi_read(bus, AR71XX_SPI_REG_RDS);
> +		if (rx) {
> +			if (restbits)
> +				*rx++ = (in << (8 - restbits));
> +			else
> +				*rx++ = in;
> +		}
> +	}
> +
> +	if (flags & SPI_XFER_END) {
> +		ath79_spi_write(bus, AR71XX_SPI_IOC_CS(slave->cs),
> +				AR71XX_SPI_REG_IOC);
> +		ath79_spi_write(bus, AR71XX_SPI_IOC_CS_ALL, AR71XX_SPI_REG_IOC);
> +		ath79_spi_write(bus, 0, AR71XX_SPI_REG_FS);
> +	}
> +
> +	return 0;
> +}
> +
> +
> +static int ath79_spi_set_speed(struct udevice *bus, uint speed)
> +{
> +	u32 val, div = 0;
> +
> +	if (speed)
> +		div = get_bus_freq(0) / speed;
> +
> +	if (div > 63)
> +		div = 63;
> +
> +	if (div < 5)
> +		div = 5;
> +
> +	ath79_spi_write(bus, AR71XX_SPI_FS_GPIO, AR71XX_SPI_REG_FS);
> +	val = ath79_spi_read(bus, AR71XX_SPI_REG_CTRL);
> +	val &= ~AR71XX_SPI_CTRL_DIV_MASK;
> +	val |= SPI_CLK_DIV(div);
> +	ath79_spi_write(bus, val, AR71XX_SPI_REG_CTRL);
> +	ath79_spi_write(bus, 0, AR71XX_SPI_REG_FS);
> +	return 0;
> +}
> +
> +static int ath79_spi_set_mode(struct udevice *bus, uint mode)
> +{
> +	return 0;
> +}
> +
> +static int ath79_spi_probe(struct udevice *bus)
> +{
> +	struct ath79_spi_priv *priv = dev_get_priv(bus);
> +	struct ath79_spi_platdata *plat = dev_get_platdata(bus);
> +
> +	priv->regs = plat->regs;
> +
> +	/* Init SPI Hardware, disable remap, set clock */
> +	ath79_spi_write(bus, AR71XX_SPI_FS_GPIO, AR71XX_SPI_REG_FS);
> +	ath79_spi_write(bus, AR71XX_SPI_CTRL_RD | SPI_CLK_DIV(8),
> +			AR71XX_SPI_REG_CTRL);
> +	ath79_spi_write(bus, 0, AR71XX_SPI_REG_FS);
> +
> +	return 0;
> +}
> +
> +static int ath79_cs_info(struct udevice *bus, uint cs,
> +			   struct spi_cs_info *info)
> +{
> +	/* Always allow activity on CS 0/1/2 */
> +	if (cs >= 3)
> +		return -ENODEV;
> +
> +	return 0;
> +}
> +
> +static int ath79_spi_ofdata_to_platdata(struct udevice *bus)
> +{
> +	struct ath79_spi_platdata *plat = dev_get_platdata(bus);
> +	fdt_addr_t addr;
> +
> +	addr = dev_get_addr(bus);
> +	if (addr == FDT_ADDR_T_NONE)
> +		return -EINVAL;
> +
> +	plat->regs = map_physmem(addr,
> +				 AR71XX_SPI_SIZE,
> +				 MAP_NOCACHE);

move this code to function ath79_spi_probe and drop this function

> +	return 0;
> +}
> +
> +static const struct dm_spi_ops ath79_spi_ops = {
> +	.claim_bus  = ath79_spi_claim_bus,
> +	.release_bus    = ath79_spi_release_bus,
> +	.xfer       = ath79_spi_xfer,
> +	.set_speed  = ath79_spi_set_speed,
> +	.set_mode   = ath79_spi_set_mode,
> +	.cs_info    = ath79_cs_info,
> +};
> +
> +static const struct udevice_id ath79_spi_ids[] = {
> +	{ .compatible = "ath79,ath79-spi" },
> +	{}
> +};
> +
> +U_BOOT_DRIVER(ath79_spi) = {
> +	.name   = "ath79_spi",
> +	.id = UCLASS_SPI,
> +	.of_match = ath79_spi_ids,
> +	.ops    = &ath79_spi_ops,
> +	.ofdata_to_platdata = ath79_spi_ofdata_to_platdata,
> +	.platdata_auto_alloc_size = sizeof(struct ath79_spi_platdata),

again, no platdata needed

> +	.priv_auto_alloc_size = sizeof(struct ath79_spi_priv),
> +	.probe  = ath79_spi_probe,
> +};
> 

-- 
- Daniel

^ permalink raw reply	[flat|nested] 39+ messages in thread

* [U-Boot] [PATCH v4 6/8] mips: ath79: add AP121 reference board
  2015-12-25 18:56 ` [U-Boot] [PATCH v4 6/8] mips: ath79: add AP121 reference board Wills Wang
@ 2015-12-26 13:52   ` Daniel Schwierzeck
  2015-12-26 16:59     ` Wills Wang
  2015-12-27  6:36     ` Wills Wang
  0 siblings, 2 replies; 39+ messages in thread
From: Daniel Schwierzeck @ 2015-12-26 13:52 UTC (permalink / raw)
  To: u-boot



Am 25.12.2015 um 19:56 schrieb Wills Wang:
> Signed-off-by: Wills Wang <wills.wang@live.com>
> ---
> 
> Changes in v4: None
> Changes in v3: None
> Changes in v2: None
> 
>  arch/mips/Kconfig             |  8 +++++
>  arch/mips/dts/Makefile        |  2 +-
>  arch/mips/dts/ap121.dts       | 37 +++++++++++++++++++
>  arch/mips/dts/ar933x.dtsi     | 64 +++++++++++++++++++++++++++++++++
>  board/ath79/ap121/Kconfig     | 15 ++++++++
>  board/ath79/ap121/MAINTAINERS |  6 ++++
>  board/ath79/ap121/Makefile    |  8 +++++
>  board/ath79/ap121/README      | 18 ++++++++++
>  board/ath79/ap121/ap121.c     | 17 +++++++++
>  board/ath79/ap121/config.mk   | 16 +++++++++
>  configs/ap121_defconfig       | 42 ++++++++++++++++++++++
>  include/configs/ap121.h       | 82 +++++++++++++++++++++++++++++++++++++++++++
>  12 files changed, 314 insertions(+), 1 deletion(-)
>  create mode 100644 arch/mips/dts/ap121.dts
>  create mode 100644 arch/mips/dts/ar933x.dtsi
>  create mode 100644 board/ath79/ap121/Kconfig
>  create mode 100644 board/ath79/ap121/MAINTAINERS
>  create mode 100644 board/ath79/ap121/Makefile
>  create mode 100644 board/ath79/ap121/README
>  create mode 100644 board/ath79/ap121/ap121.c
>  create mode 100644 board/ath79/ap121/config.mk
>  create mode 100644 configs/ap121_defconfig
>  create mode 100644 include/configs/ap121.h
> 
> diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
> index 7f7e258..09b8709 100644
> --- a/arch/mips/Kconfig
> +++ b/arch/mips/Kconfig
> @@ -51,6 +51,13 @@ config TARGET_PB1X00
>  	select SUPPORTS_CPU_MIPS32_R2
>  	select SYS_MIPS_CACHE_INIT_RAM_LOAD
>  
> +config TARGET_AP121
> +	bool "Support ap121"
> +	select SUPPORTS_BIG_ENDIAN
> +	select SUPPORTS_CPU_MIPS32_R1
> +	select SUPPORTS_CPU_MIPS32_R2
> +	select SYS_MIPS_CACHE_INIT_RAM_LOAD
> +

please create a dedicated Kconfig in arch/mips/mach-ath79/ and add this
board there. Have a look at following links for examples:

https://github.com/danielschwierzeck/u-boot-lantiq/blob/lantiq/upstream/arch/mips/mach-lantiq/Kconfig

http://patchwork.ozlabs.org/patch/558465/
http://patchwork.ozlabs.org/patch/558469/

>  
>  endchoice
>  
> @@ -59,6 +66,7 @@ source "board/imgtec/malta/Kconfig"
>  source "board/micronas/vct/Kconfig"
>  source "board/pb1x00/Kconfig"
>  source "board/qemu-mips/Kconfig"
> +source "board/ath79/ap121/Kconfig"
>  
>  if MIPS
>  
> diff --git a/arch/mips/dts/Makefile b/arch/mips/dts/Makefile
> index 47b6eb5..6f8b413 100644
> --- a/arch/mips/dts/Makefile
> +++ b/arch/mips/dts/Makefile
> @@ -2,7 +2,7 @@
>  # SPDX-License-Identifier:	GPL-2.0+
>  #
>  
> -dtb-y +=
> +dtb-$(CONFIG_TARGET_AP121) += ap121.dtb
>  
>  targets += $(dtb-y)
>  
> diff --git a/arch/mips/dts/ap121.dts b/arch/mips/dts/ap121.dts
> new file mode 100644
> index 0000000..769458a
> --- /dev/null
> +++ b/arch/mips/dts/ap121.dts
> @@ -0,0 +1,37 @@
> +/dts-v1/;
> +#include "ar933x.dtsi"
> +
> +/ {
> +	model = "AP121 Reference Board";
> +	compatible = "ath79,ap121", "ath79,ar933x";
> +
> +	aliases {
> +		spi0 = &spi0;
> +		serial0 = &uart0;
> +	};
> +
> +	chosen {
> +		stdout-path = "serial0:115200n8";
> +	};
> +};
> +
> +&xtal {
> +	clock-frequency = <25000000>;
> +};
> +
> +&uart0 {
> +	status = "okay";
> +};
> +
> +&spi0 {
> +	spi-max-frequency = <25000000>;
> +	status = "okay";
> +	spi-flash at 0 {
> +		#address-cells = <1>;
> +		#size-cells = <1>;
> +		compatible = "spi-flash";
> +		memory-map = <0x9f000000 0x00800000>;
> +		spi-max-frequency = <25000000>;
> +		reg = <0>;
> +	};
> +};
> diff --git a/arch/mips/dts/ar933x.dtsi b/arch/mips/dts/ar933x.dtsi
> new file mode 100644
> index 0000000..64b30f7
> --- /dev/null
> +++ b/arch/mips/dts/ar933x.dtsi
> @@ -0,0 +1,64 @@
> +#include "skeleton.dtsi"
> +
> +/ {
> +	compatible = "ath79,ar933x";

the first part should be a vendor name and according to device-trees
from kernel this should be "qca"

> +
> +	#address-cells = <1>;
> +	#size-cells = <1>;
> +
> +	cpus {
> +		#address-cells = <1>;
> +		#size-cells = <0>;
> +
> +		cpu at 0 {
> +			device_type = "cpu";
> +			compatible = "mips,mips24Kc";
> +			reg = <0>;
> +		};
> +	};
> +
> +	clocks {
> +		#address-cells = <1>;
> +		#size-cells = <1>;
> +		ranges;
> +
> +		xtal: xtal {
> +			#clock-cells = <0>;
> +			compatible = "fixed-clock";
> +			clock-output-names = "xtal";
> +		};
> +	};
> +
> +	ahb {
> +		compatible = "simple-bus";
> +		ranges;
> +
> +		#address-cells = <1>;
> +		#size-cells = <1>;
> +
> +		apb {
> +			compatible = "simple-bus";
> +			ranges;
> +
> +			#address-cells = <1>;
> +			#size-cells = <1>;
> +
> +			uart0: uart at 18020000 {
> +				compatible = "ath79,ar933x-uart";

I suggest to use "qca,ar9330-uart" like the kernel driver

> +				reg = <0x18020000 0x20>;
> +
> +				status = "disabled";
> +			};
> +		};
> +
> +		spi0: spi at 1f000000 {
> +			compatible = "ath79,ath79-spi";

I suggest to use "qca,ar7100-spi" like the kernel driver

> +			reg = <0x1f000000 0x10>;
> +
> +			status = "disabled";
> +
> +			#address-cells = <1>;
> +			#size-cells = <0>;
> +		};
> +	};
> +};
> diff --git a/board/ath79/ap121/Kconfig b/board/ath79/ap121/Kconfig
> new file mode 100644
> index 0000000..88d9eff
> --- /dev/null
> +++ b/board/ath79/ap121/Kconfig
> @@ -0,0 +1,15 @@
> +if TARGET_AP121
> +
> +config SYS_BOARD
> +	default "ap121"
> +
> +config SYS_VENDOR
> +	default "ath79"
> +
> +config SYS_SOC
> +	default "ath79"
> +
> +config SYS_CONFIG_NAME
> +	default "ap121"
> +
> +endif
> diff --git a/board/ath79/ap121/MAINTAINERS b/board/ath79/ap121/MAINTAINERS
> new file mode 100644
> index 0000000..319b521
> --- /dev/null
> +++ b/board/ath79/ap121/MAINTAINERS
> @@ -0,0 +1,6 @@
> +AP121 BOARD
> +M:	Wills Wang <wills.wang@live.com>
> +S:	Maintained
> +F:	board/ath79/ap121/
> +F:	include/configs/ap121.h
> +F:	configs/ap121_defconfig
> diff --git a/board/ath79/ap121/Makefile b/board/ath79/ap121/Makefile
> new file mode 100644
> index 0000000..9132118
> --- /dev/null
> +++ b/board/ath79/ap121/Makefile
> @@ -0,0 +1,8 @@
> +#
> +# (C) Copyright 2003-2006
> +# Wolfgang Denk, DENX Software Engineering, wd at denx.de.

again, no historic copyright needed for a simple one-line Makefile

> +#
> +# SPDX-License-Identifier:	GPL-2.0+
> +#
> +
> +obj-y	= ap121.o
> diff --git a/board/ath79/ap121/README b/board/ath79/ap121/README
> new file mode 100644
> index 0000000..104850f
> --- /dev/null
> +++ b/board/ath79/ap121/README
> @@ -0,0 +1,18 @@
> +ATHEROS AP121
> +==================
> +
> +Supported hardware: AP121 referance board.
> +
> +Files of the AP121 port
> +--------------------------
> +
> +arch/mips/mach-ath79/ar933x/	- The CPU support code for the Atheros ar933x
> +arch/mips/include/asm/arch-ath79	- Header files for the Atheros ath79
> +board/ath79/ap121/	- AP121 board specific files
> +include/configs/ap121.h	- AP121 configuration file
> +
> +Configure
> +-------------------
> +
> +To configure for the current board
> +	make ap121_defconfig

you can drop this README. There is no new or relevant information in it

> diff --git a/board/ath79/ap121/ap121.c b/board/ath79/ap121/ap121.c
> new file mode 100644
> index 0000000..f60f88b
> --- /dev/null
> +++ b/board/ath79/ap121/ap121.c
> @@ -0,0 +1,17 @@
> +/*
> + * (C) Copyright 2015
> + * Wills Wang, <wills.wang@live.com>
> + *
> + * SPDX-License-Identifier:	GPL-2.0+
> + */
> +
> +#include <common.h>
> +#include <command.h>
> +#include <asm/mipsregs.h>
> +#include <asm/addrspace.h>
> +#include <asm/io.h>
> +
> +int checkboard(void)
> +{
> +	return 0;
> +}

you could/should print your board name here

> diff --git a/board/ath79/ap121/config.mk b/board/ath79/ap121/config.mk
> new file mode 100644
> index 0000000..f7dd3b7
> --- /dev/null
> +++ b/board/ath79/ap121/config.mk
> @@ -0,0 +1,16 @@
> +#
> +# (C) Copyright 2003
> +# Wolfgang Denk, DENX Software Engineering, wd at denx.de.
> +#
> +# SPDX-License-Identifier:	GPL-2.0+
> +#
> +
> +#
> +# AP121 referance board, MIPS32 core
> +#
> +
> +# ROM version
> +CONFIG_SYS_TEXT_BASE = 0x9f000000
> +
> +# RAM version
> +#CONFIG_SYS_TEXT_BASE = 0x80010000

config.mk files in board directory are also deprecated. Please add
"#define CONFIG_SYS_TEXT_BASE 0x9f000000" to include/configs/ap121.h

> diff --git a/configs/ap121_defconfig b/configs/ap121_defconfig
> new file mode 100644
> index 0000000..cec0bb7
> --- /dev/null
> +++ b/configs/ap121_defconfig
> @@ -0,0 +1,42 @@
> +CONFIG_MIPS=y
> +CONFIG_TARGET_AP121=y
> +CONFIG_SYS_MALLOC_F_LEN=0x2000
> +CONFIG_SYS_PROMPT="ap121 # "
> +CONFIG_OF_CONTROL=y
> +CONFIG_DEFAULT_DEVICE_TREE="ap121"
> +CONFIG_DM=y

options like CONFIG_OF_CONTROL and CONFIG_DM should be pre-selected by
the mach or SoC specific Kconfig file if you always require it. An user
of your board should not be able to disable those options.

> +CONFIG_DM_SERIAL=y
> +CONFIG_DM_SPI=y
> +CONFIG_DM_SPI_FLASH=y
> +CONFIG_ATH79_SPI=y
> +CONFIG_SPI_FLASH=y
> +CONFIG_SPI_FLASH_BAR=y
> +CONFIG_SPI_FLASH_ATMEL=y
> +CONFIG_SPI_FLASH_EON=y
> +CONFIG_SPI_FLASH_GIGADEVICE=y
> +CONFIG_SPI_FLASH_MACRONIX=y
> +CONFIG_SPI_FLASH_SPANSION=y
> +CONFIG_SPI_FLASH_STMICRO=y
> +CONFIG_SPI_FLASH_SST=y
> +CONFIG_SPI_FLASH_WINBOND=y
> +CONFIG_SPI_FLASH_USE_4K_SECTORS=y
> +CONFIG_SPI_FLASH_DATAFLASH=y
> +CONFIG_SPI_FLASH_MTD=y
> +CONFIG_CMD_DM=y
> +CONFIG_CMD_SF=y
> +CONFIG_CMD_SPI=y
> +# CONFIG_NET is not set
> +# CONFIG_CMD_BDI is not set
> +# CONFIG_CMD_CONSOLE is not set
> +# CONFIG_CMD_IMLS is not set
> +# CONFIG_CMD_XIMG is not set
> +# CONFIG_CMD_ELF is not set
> +# CONFIG_CMD_EXPORTENV is not set
> +# CONFIG_CMD_IMPORTENV is not set
> +# CONFIG_CMD_EDITENV is not set
> +# CONFIG_CMD_CRC32 is not set
> +# CONFIG_CMD_FLASH is not set
> +# CONFIG_CMD_FPGA is not set
> +# CONFIG_CMD_NFS is not set
> +# CONFIG_CMD_NET is not set
> +CONFIG_USE_PRIVATE_LIBGCC=y
> diff --git a/include/configs/ap121.h b/include/configs/ap121.h
> new file mode 100644
> index 0000000..5a01d11
> --- /dev/null
> +++ b/include/configs/ap121.h
> @@ -0,0 +1,82 @@
> +#ifndef __CONFIG_H
> +#define __CONFIG_H
> +
> +#include <linux/kconfig.h>
> +#include <linux/sizes.h>

those includes are not needed in a board config header file respectively
they are already included implicitely

> +
> +#define CONFIG_ARCH_ATH79
> +#define CONFIG_SOC_AR933X

this is already configured by Kconfig

> +
> +#define CONFIG_DISPLAY_CPUINFO
> +#define CONFIG_DISPLAY_BOARDINFO
> +
> +#define CONFIG_OF_LIBFDT
> +
> +#define CONFIG_SYS_HZ                   1000
> +#define CONFIG_SYS_MHZ                  200
> +#define CONFIG_SYS_MIPS_TIMER_FREQ      (CONFIG_SYS_MHZ * 1000000)
> +
> +/* Cache Configuration */
> +#define CONFIG_SYS_DCACHE_SIZE          32 * SZ_1K
> +#define CONFIG_SYS_ICACHE_SIZE          64 * SZ_1K
> +#define CONFIG_SYS_CACHELINE_SIZE       32

you can drop this, the cache sizes will be detected automatically

> +
> +#define CONFIG_SYS_MONITOR_BASE         CONFIG_SYS_TEXT_BASE
> +
> +#define CONFIG_SYS_MALLOC_LEN           ROUND(0x30000 + 128 * SZ_1K, 0x1000)

no need for a magic calculation, please choose a fixed value

> +
> +#define CONFIG_SYS_BOOTPARAMS_LEN       128 * SZ_1K
> +
> +#define CONFIG_SYS_SDRAM_BASE           0x80000000
> +#define CONFIG_SYS_LOAD_ADDR            0x81000000
> +
> +#define CONFIG_SYS_INIT_SP_OFFSET       0x20000
> +#define CONFIG_SYS_NO_FLASH
> +
> +#define CONFIG_AR933X_SERIAL

this is already configured by Kconfig

> +#define CONFIG_BAUDRATE                 115200
> +#define CONFIG_SYS_BAUDRATE_TABLE       {9600, 19200, 38400, 57600, 115200}
> +
> +#define CONFIG_BOOTDELAY                3
> +#define CONFIG_BOOTARGS                 "console=ttyS0,115200 " \
> +					"root=/dev/mtdblock2 " \
> +					"rootfstype=squashfs"
> +#define CONFIG_BOOTCOMMAND              "sf probe;" \
> +					"mtdparts default;" \
> +					"bootm 0x9f300000"
> +#define CONFIG_LZMA
> +
> +#define MTDIDS_DEFAULT                  "nor0=spi-flash.0"
> +#define MTDPARTS_DEFAULT                "mtdparts=spi-flash.0:256k(u-boot)," \
> +		"64k(u-boot-env),2752k(rootfs),896k(uImage),64k(NVRAM),64k(ART)"
> +
> +#define CONFIG_ENV_SPI_MAX_HZ           25000000
> +#define CONFIG_ENV_IS_IN_SPI_FLASH
> +#define CONFIG_ENV_OFFSET               (256 * SZ_1K)
> +#define CONFIG_ENV_SECT_SIZE            (64 * SZ_1K)
> +#define CONFIG_ENV_SIZE                 (64 * SZ_1K)
> +
> +/*
> + * Command
> + */
> +#define CONFIG_CMD_MTDPARTS
> +
> +/* Miscellaneous configurable options */
> +#define CONFIG_SYS_CBSIZE               256
> +#define CONFIG_SYS_MAXARGS              16
> +#define CONFIG_SYS_PBSIZE               (CONFIG_SYS_CBSIZE + \
> +					sizeof(CONFIG_SYS_PROMPT) + 16)
> +#define CONFIG_SYS_LONGHELP
> +#define CONFIG_CMDLINE_EDITING
> +#define CONFIG_AUTO_COMPLETE
> +#define CONFIG_SYS_HUSH_PARSER
> +#define CONFIG_SYS_PROMPT_HUSH_PS2      "> "

this is already configured by Kconfig

> +
> +/*
> + * Diagnostics
> + */
> +#define CONFIG_SYS_MEMTEST_START        0x80100000
> +#define CONFIG_SYS_MEMTEST_END          0x83f00000
> +#define CONFIG_CMD_MEMTEST
> +
> +#endif  /* __CONFIG_H */
> 

-- 
- Daniel

^ permalink raw reply	[flat|nested] 39+ messages in thread

* [U-Boot] [PATCH v4 1/8] include: Add support for "do_div" macro
  2015-12-26  7:24   ` Marek Vasut
@ 2015-12-26 15:48     ` Wills Wang
  0 siblings, 0 replies; 39+ messages in thread
From: Wills Wang @ 2015-12-26 15:48 UTC (permalink / raw)
  To: u-boot

Sorry, i missed this file.

On 12/26/2015 03:24 PM, Marek Vasut wrote:
> On Friday, December 25, 2015 at 07:56:21 PM, Wills Wang wrote:
>> Use the div64 header files from the kernel.
>>
>> Signed-off-by: Wills Wang <wills.wang@live.com>
>> ---
> We already have include/div64.h , is that what you're after ?
>
> Best regards,
> Marek Vasut
>
>

^ permalink raw reply	[flat|nested] 39+ messages in thread

* [U-Boot] [PATCH v4 3/8] mips: add base support for atheros ath79 based SOCs
  2015-12-26  7:28   ` Marek Vasut
@ 2015-12-26 16:17     ` Wills Wang
  2015-12-26 17:01       ` Daniel Schwierzeck
  0 siblings, 1 reply; 39+ messages in thread
From: Wills Wang @ 2015-12-26 16:17 UTC (permalink / raw)
  To: u-boot



On 12/26/2015 03:28 PM, Marek Vasut wrote:
> On Friday, December 25, 2015 at 07:56:23 PM, Wills Wang wrote:
>> This patch enable work for ar933x SOC, tested on ar9331 board.
>>
>> Signed-off-by: Wills Wang <wills.wang@live.com>
>> ---
> [...]
>
>> +int arch_cpu_init(void)
>> +{
>> +	u32 val;
>> +
>> +	/*
>> +	 * Set GPIO10 (UART_SO) as output and enable UART,
>> +	 * BIT(15) in GPIO_FUNCTION_1 register must be written with 1
>> +	 */
>> +	val = readl(KSEG1ADDR(AR71XX_GPIO_BASE + AR71XX_GPIO_REG_OE));
>> +	val |= BIT(10);
>> +	writel(val, KSEG1ADDR(AR71XX_GPIO_BASE + AR71XX_GPIO_REG_OE));
>> +
>> +	val = readl(KSEG1ADDR(AR71XX_GPIO_BASE + AR71XX_GPIO_REG_FUNC));
>> +	val |= (AR933X_GPIO_FUNC_UART_EN | BIT(15));
>> +	writel(val, KSEG1ADDR(AR71XX_GPIO_BASE + AR71XX_GPIO_REG_FUNC));
>> +	return 0;
>> +}
> Pinmux should be done on a per-board basis, not per-CPU. Also, please use
> setbits_le32().
I don't find other more fit entry for pinctrl initialization.
We must set these IO pin before serial initialization.
Put it into board directory?
>> diff --git a/arch/mips/mach-ath79/ar933x/ddr_tap.S
>> b/arch/mips/mach-ath79/ar933x/ddr_tap.S new file mode 100644
>> index 0000000..18c57de
>> --- /dev/null
>> +++ b/arch/mips/mach-ath79/ar933x/ddr_tap.S
>> @@ -0,0 +1,268 @@
>> +/*
>> + * (C) Copyright 2015
>> + * Wills Wang, <wills.wang@live.com>
>> + *
>> + * SPDX-License-Identifier: GPL-2.0+
>> + */
>> +
>> +#include <config.h>
>> +#include <asm/asm.h>
>> +#include <asm/regdef.h>
>> +#include <asm/mipsregs.h>
>> +#include <asm/addrspace.h>
>> +#include <asm/arch/ar71xx_regs.h>
>> +
>> +#define DRAM_K0(x)      KSEG0ADDR(x)
>> +#define DRAM_K1(x)      KSEG1ADDR(x)
>> +
>> +	.text
>> +	.set noreorder
>> +
>> +LEAF(ddr_tap_init)
>> +	/* Tap settings for the DDR */
>> +	li      t0, 0xffffffff
>> +	li      t1, DRAM_K0(0x500000)
>> +	sw      t0, 0x0(t1)
>> +	sw      t0, 0x4(t1)
>> +	sw      t0, 0x8(t1)
>> +	sw      t0, 0xc(t1)
>> +	nop
>> +	nop
> This should be C code, pretty please.
Must this be change to c code?
I think there should be no problem.
>
> [...]
>
>> diff --git a/arch/mips/mach-ath79/ar933x/lowlevel_init.S
>> b/arch/mips/mach-ath79/ar933x/lowlevel_init.S new file mode 100644
>> index 0000000..72509ca
>> --- /dev/null
>> +++ b/arch/mips/mach-ath79/ar933x/lowlevel_init.S
> lowlevel_init.S should be C code too, I don't see anything which would
> require this to be ASM .
I don't find SRAM in this chip, we need DDR memory to handle C runtime 
statck.
> [...]
>
>> diff --git a/arch/mips/mach-ath79/cpu.c b/arch/mips/mach-ath79/cpu.c
>> new file mode 100644
>> index 0000000..681127c
>> --- /dev/null
>> +++ b/arch/mips/mach-ath79/cpu.c
>> @@ -0,0 +1,171 @@
>> +/*
>> + * (C) Copyright 2015
>> + * Wills Wang, <wills.wang@live.com>
>> + *
>> + * SPDX-License-Identifier:	GPL-2.0+
>> + */
>> +
>> +#include <common.h>
>> +#include <asm/io.h>
>> +#include <asm/addrspace.h>
>> +#include <asm/types.h>
>> +#include <asm/arch/ath79.h>
>> +#include <asm/arch/ar71xx_regs.h>
>> +
>> +int print_cpuinfo(void)
>> +{
>> +	enum ath79_soc_type soc = ATH79_SOC_UNKNOWN;
>> +	char *chip = "????";
>> +	u32 id, major, minor;
>> +	u32 rev = 0;
>> +	u32 ver = 1;
>> +
>> +	id = readl(KSEG1ADDR(AR71XX_RESET_BASE + AR71XX_RESET_REG_REV_ID));
>> +	major = id & REV_ID_MAJOR_MASK;
>> +
>> +	switch (major) {
>> +	case REV_ID_MAJOR_AR71XX:
>> +		minor = id & AR71XX_REV_ID_MINOR_MASK;
>> +		rev = id >> AR71XX_REV_ID_REVISION_SHIFT;
>> +		rev &= AR71XX_REV_ID_REVISION_MASK;
>> +		switch (minor) {
> I did review this already and my suggestions were ignored :-( I stop here ...
Sorry, I forget this.
This code inherit from kernel, to change would maintain it much more 
difficult.
>
> [...]
>
>

^ permalink raw reply	[flat|nested] 39+ messages in thread

* [U-Boot] [PATCH v4 1/8] include: Add support for "do_div" macro
  2015-12-26 13:09   ` Daniel Schwierzeck
@ 2015-12-26 16:54     ` Wills Wang
  0 siblings, 0 replies; 39+ messages in thread
From: Wills Wang @ 2015-12-26 16:54 UTC (permalink / raw)
  To: u-boot



On 12/26/2015 09:09 PM, Daniel Schwierzeck wrote:
>
> Am 25.12.2015 um 19:56 schrieb Wills Wang:
>> Use the div64 header files from the kernel.
>>
>> Signed-off-by: Wills Wang <wills.wang@live.com>
>> ---
>>
>> Changes in v4: None
>> Changes in v3: None
>> Changes in v2: None
>>
>>   arch/mips/include/asm/div64.h | 68 +++++++++++++++++++++++++++++++++++++++++++
>>   include/asm-generic/div64.h   | 59 +++++++++++++++++++++++++++++++++++++
>>   2 files changed, 127 insertions(+)
>>   create mode 100644 arch/mips/include/asm/div64.h
>>   create mode 100644 include/asm-generic/div64.h
> please drop this patch, we already have a generic do_div()
> implementation. Also we do not really need an assembly optimized
> implementation for MIPS.
I missed this file, please ignore this patch.
>> diff --git a/arch/mips/include/asm/div64.h b/arch/mips/include/asm/div64.h
>> new file mode 100644
>> index 0000000..e5e6782
>> --- /dev/null
>> +++ b/arch/mips/include/asm/div64.h
>> @@ -0,0 +1,68 @@
>> +/*
>> + * Copyright (C) 2000, 2004  Maciej W. Rozycki
>> + * Copyright (C) 2003, 07 Ralf Baechle (ralf at linux-mips.org)
>> + *
>> + * This file is subject to the terms and conditions of the GNU General Public
>> + * License.  See the file "COPYING" in the main directory of this archive
>> + * for more details.
>> + */
>> +#ifndef __ASM_DIV64_H
>> +#define __ASM_DIV64_H
>> +
>> +#include <asm-generic/div64.h>
>> +
>> +#if BITS_PER_LONG == 64
>> +
>> +#include <linux/types.h>
>> +
>> +/*
>> + * No traps on overflows for any of these...
>> + */
>> +
>> +#define __div64_32(n, base)						\
>> +({									\
>> +	unsigned long __cf, __tmp, __tmp2, __i;				\
>> +	unsigned long __quot32, __mod32;				\
>> +	unsigned long __high, __low;					\
>> +	unsigned long long __n;						\
>> +									\
>> +	__high = *__n >> 32;						\
>> +	__low = __n;							\
>> +	__asm__(							\
>> +	"	.set	push\n"						\
>> +	"	.set	noat\n"						\
>> +	"	.set	noreorder\n"					\
>> +	"	move	%2, $0\n"					\
>> +	"	move	%3, $0\n"					\
>> +	"	b	1f\n"						\
>> +	"	 li	%4, 0x21\n"					\
>> +	"0:\n"								\
>> +	"	sll	$1, %0, 0x1\n"					\
>> +	"	srl	%3, %0, 0x1f\n"					\
>> +	"	or	%0, $1, %5\n"					\
>> +	"	sll	%1, %1, 0x1\n"					\
>> +	"	sll	%2, %2, 0x1\n"					\
>> +	"1:\n"								\
>> +	"	bnez	%3, 2f\n"					\
>> +	"	 sltu	%5, %0, %z6\n"					\
>> +	"	bnez	%5, 3f\n"					\
>> +	"2:\n"								\
>> +	"	 addiu	%4, %4, -1\n"					\
>> +	"	subu	%0, %0, %z6\n"					\
>> +	"	addiu	%2, %2, 1\n"					\
>> +	"3:\n"								\
>> +	"	bnez	%4, 0b\n\t"					\
>> +	"	 srl	%5, %1, 0x1f\n\t"				\
>> +	"	.set	pop"						\
>> +	: "=&r" (__mod32), "=&r" (__tmp),				\
>> +	  "=&r" (__quot32), "=&r" (__cf),				\
>> +	  "=&r" (__i), "=&r" (__tmp2)					\
>> +	: "Jr" (base), "0" (__high), "1" (__low));			\
>> +									\
>> +	(__n) = __quot32;						\
>> +	__mod32;							\
>> +})
>> +
>> +#endif /* BITS_PER_LONG == 64 */
>> +
>> +#endif /* __ASM_DIV64_H */
>> diff --git a/include/asm-generic/div64.h b/include/asm-generic/div64.h
>> new file mode 100644
>> index 0000000..d689fc4
>> --- /dev/null
>> +++ b/include/asm-generic/div64.h
>> @@ -0,0 +1,59 @@
>> +/*
>> + * Copyright (C) 2003 Bernardo Innocenti <bernie@develer.com>
>> + * Based on former asm-ppc/div64.h and asm-m68knommu/div64.h
>> + *
>> + * The semantics of do_div() are:
>> + *
>> + * uint32_t do_div(uint64_t *n, uint32_t base)
>> + * {
>> + *  uint32_t remainder = *n % base;
>> + *  *n = *n / base;
>> + *  return remainder;
>> + * }
>> + *
>> + * NOTE: macro parameter n is evaluated multiple times,
>> + *       beware of side effects!
>> + */
>> +
>> +#ifndef _ASM_GENERIC_DIV64_H
>> +#define _ASM_GENERIC_DIV64_H
>> +
>> +#include <linux/types.h>
>> +#include <linux/compiler.h>
>> +
>> +#if BITS_PER_LONG == 64
>> +
>> +# define do_div(n, base) ({					\
>> +	uint32_t __base = (base);				\
>> +	uint32_t __rem;						\
>> +	__rem = ((uint64_t)(n)) % __base;			\
>> +	(n) = ((uint64_t)(n)) / __base;				\
>> +	__rem;							\
>> +})
>> +
>> +#elif BITS_PER_LONG == 32
>> +
>> +extern uint32_t __div64_32(uint64_t *dividend, uint32_t divisor);
>> +
>> +/* The unnecessary pointer compare is there
>> + * to check for type safety (n must be 64bit)
>> + */
>> +# define do_div(n, base) ({				\
>> +	uint32_t __base = (base);			\
>> +	uint32_t __rem;					\
>> +	(void)(((typeof((n)) *)0) == ((uint64_t *)0));	\
>> +	if (likely(((n) >> 32) == 0)) {			\
>> +		__rem = (uint32_t)(n) % __base;		\
>> +		(n) = (uint32_t)(n) / __base;		\
>> +	} else						\
>> +		__rem = __div64_32(&(n), __base);	\
>> +	__rem;						\
>> +})
>> +
>> +#else /* BITS_PER_LONG == ?? */
>> +
>> +# error do_div() does not yet support the C64
>> +
>> +#endif /* BITS_PER_LONG */
>> +
>> +#endif /* _ASM_GENERIC_DIV64_H */
>>

^ permalink raw reply	[flat|nested] 39+ messages in thread

* [U-Boot] [PATCH v4 4/8] mips: ath79: add serial driver for ar933x SOC
  2015-12-26 13:20   ` Daniel Schwierzeck
@ 2015-12-26 16:54     ` Wills Wang
  2015-12-26 17:19       ` Daniel Schwierzeck
  2015-12-27  6:28     ` Wills Wang
  2015-12-27  8:31     ` Thomas Chou
  2 siblings, 1 reply; 39+ messages in thread
From: Wills Wang @ 2015-12-26 16:54 UTC (permalink / raw)
  To: u-boot



On 12/26/2015 09:20 PM, Daniel Schwierzeck wrote:
>
> Am 25.12.2015 um 19:56 schrieb Wills Wang:
>> Signed-off-by: Wills Wang <wills.wang@live.com>
>> ---
>>
>> Changes in v4: None
>> Changes in v3: None
>> Changes in v2: None
>>
>>   drivers/serial/Makefile        |   1 +
>>   drivers/serial/serial_ar933x.c | 225 +++++++++++++++++++++++++++++++++++++++++
>>   2 files changed, 226 insertions(+)
>>   create mode 100644 drivers/serial/serial_ar933x.c
>>
>> diff --git a/drivers/serial/Makefile b/drivers/serial/Makefile
>> index dd87147..9a7ad89 100644
>> --- a/drivers/serial/Makefile
>> +++ b/drivers/serial/Makefile
>> @@ -17,6 +17,7 @@ endif
>>   
>>   obj-$(CONFIG_ALTERA_UART) += altera_uart.o
>>   obj-$(CONFIG_ALTERA_JTAG_UART) += altera_jtag_uart.o
>> +obj-$(CONFIG_AR933X_SERIAL) += serial_ar933x.o
>>   obj-$(CONFIG_ARM_DCC) += arm_dcc.o
>>   obj-$(CONFIG_ATMEL_USART) += atmel_usart.o
>>   obj-$(CONFIG_EFI_APP) += serial_efi.o
>> diff --git a/drivers/serial/serial_ar933x.c b/drivers/serial/serial_ar933x.c
>> new file mode 100644
>> index 0000000..efca93c
>> --- /dev/null
>> +++ b/drivers/serial/serial_ar933x.c
>> @@ -0,0 +1,225 @@
>> +/*
>> + * (C) Copyright 2015
>> + * Wills Wang, <wills.wang@live.com>
>> + *
>> + * SPDX-License-Identifier: GPL-2.0+
>> + */
>> +
>> +#include <common.h>
>> +#include <dm.h>
>> +#include <errno.h>
>> +#include <serial.h>
>> +#include <asm/io.h>
>> +#include <asm/addrspace.h>
>> +#include <asm/div64.h>
> use the existing and generic implementation in include/div64.h
Ok.
>> +#include <asm/types.h>
>> +#include <asm/arch/ar71xx_regs.h>
> #include <mach/ar71xx_regs.h>
>
> I wonder how you can stil compile your code
U-boot create symbolic links from arch/mips/mach-ath79/include/mach
to arch/mips/include/asm/arch.
>
>
>> +
>> +DECLARE_GLOBAL_DATA_PTR;
>> +
>> +#define AR933X_UART_DATA_REG            0x00
>> +#define AR933X_UART_CS_REG              0x04
>> +#define AR933X_UART_CLK_REG             0x08
>> +
>> +#define AR933X_UART_DATA_TX_RX_MASK     0xff
>> +#define AR933X_UART_DATA_RX_CSR         BIT(8)
>> +#define AR933X_UART_DATA_TX_CSR         BIT(9)
>> +#define AR933X_UART_CS_IF_MODE_S        2
>> +#define AR933X_UART_CS_IF_MODE_M        0x3
>> +#define AR933X_UART_CS_IF_MODE_DTE      1
>> +#define AR933X_UART_CS_IF_MODE_DCE      2
>> +#define AR933X_UART_CS_TX_RDY_ORIDE     BIT(7)
>> +#define AR933X_UART_CS_RX_RDY_ORIDE     BIT(8)
>> +#define AR933X_UART_CLK_STEP_M          0xffff
>> +#define AR933X_UART_CLK_SCALE_M         0xfff
>> +#define AR933X_UART_CLK_SCALE_S         16
>> +#define AR933X_UART_CLK_STEP_S          0
>> +
>> +struct ar933x_serial_platdata {
>> +	void __iomem *regs;
>> +};
> if you always support device-tree, you do not need platform data
Ok.
>> +
>> +struct ar933x_serial_priv {
>> +	void __iomem *regs;
>> +};
>> +
>> +static inline u32 ar933x_serial_read(struct udevice *dev, u32 offset)
>> +{
>> +	struct ar933x_serial_priv *priv = dev_get_priv(dev);
>> +	return readl(priv->regs + offset);
>> +}
>> +
>> +static inline void ar933x_serial_write(struct udevice *dev,
>> +					u32 val, u32 offset)
>> +{
>> +	struct ar933x_serial_priv *priv = dev_get_priv(dev);
>> +	writel(val, priv->regs + offset);
>> +}
>> +
>> +/*
>> + * baudrate = (clk / (scale + 1)) * (step * (1 / 2^17))
>> + */
>> +static u32 ar933x_serial_get_baud(u32 clk, u32 scale, u32 step)
>> +{
>> +	u64 t;
>> +	u32 div;
>> +
>> +	div = (2 << 16) * (scale + 1);
>> +	t = clk;
>> +	t *= step;
>> +	t += (div / 2);
>> +	do_div(t, div);
>> +
>> +	return t;
>> +}
>> +
>> +static void ar933x_serial_get_scale_step(u32 clk, u32 baud,
>> +				       u32 *scale, u32 *step)
>> +{
>> +	u32 tscale, baudrate;
>> +	long min_diff;
>> +
>> +	*scale = 0;
>> +	*step = 0;
>> +
>> +	min_diff = baud;
>> +	for (tscale = 0; tscale < AR933X_UART_CLK_SCALE_M; tscale++) {
>> +		u64 tstep;
>> +		int diff;
>> +
>> +		tstep = baud * (tscale + 1);
>> +		tstep *= (2 << 16);
>> +		do_div(tstep, clk);
>> +
>> +		if (tstep > AR933X_UART_CLK_STEP_M)
>> +			break;
>> +
>> +		baudrate = ar933x_serial_get_baud(clk, tscale, tstep);
>> +		diff = abs(baudrate - baud);
>> +		if (diff < min_diff) {
>> +			min_diff = diff;
>> +			*scale = tscale;
>> +			*step = tstep;
>> +		}
>> +	}
>> +}
>> +
>> +static int ar933x_serial_setbrg(struct udevice *dev, int baudrate)
>> +{
>> +	u32 val, scale, step;
>> +
>> +	val = get_serial_clock();
>> +	ar933x_serial_get_scale_step(val, baudrate, &scale, &step);
>> +
>> +	val  = (scale & AR933X_UART_CLK_SCALE_M)
>> +			<< AR933X_UART_CLK_SCALE_S;
>> +	val |= (step & AR933X_UART_CLK_STEP_M)
>> +			<< AR933X_UART_CLK_STEP_S;
>> +	ar933x_serial_write(dev, val, AR933X_UART_CLK_REG);
>> +
>> +	return 0;
>> +}
>> +
>> +static int ar933x_serial_putc(struct udevice *dev, const char c)
>> +{
>> +	u32 data;
>> +
>> +	if (c == '\n')
>> +		ar933x_serial_putc(dev, '\r');
> remove this, the serial core driver takes care of it
Ok.
>> +
>> +	do {
>> +		data = ar933x_serial_read(dev, AR933X_UART_DATA_REG);
>> +	} while (!(data & AR933X_UART_DATA_TX_CSR));
> remove this, the serial core driver takes care of it via your pending
> callback (ar933x_serial_pending)
Ok.
>> +
>> +	data  = (u32)c | AR933X_UART_DATA_TX_CSR;
>> +	ar933x_serial_write(dev, data, AR933X_UART_DATA_REG);
>> +
>> +	return 0;
>> +}
>> +
>> +static int ar933x_serial_getc(struct udevice *dev)
>> +{
>> +	u32 data;
>> +
>> +	do {
>> +		data = ar933x_serial_read(dev, AR933X_UART_DATA_REG);
>> +	} while (!(data & AR933X_UART_DATA_RX_CSR));
> dito
Ok.
>> +
>> +	data = ar933x_serial_read(dev, AR933X_UART_DATA_REG);
>> +	ar933x_serial_write(dev, AR933X_UART_DATA_RX_CSR,
>> +			    AR933X_UART_DATA_REG);
>> +	return data & AR933X_UART_DATA_TX_RX_MASK;
>> +}
>> +
>> +static int ar933x_serial_pending(struct udevice *dev, bool input)
>> +{
>> +	u32 data;
>> +
>> +	data = ar933x_serial_read(dev, AR933X_UART_DATA_REG);
>> +	if (input)
>> +		return (data & AR933X_UART_DATA_RX_CSR) ? 1 : 0;
>> +	else
>> +		return (data & AR933X_UART_DATA_TX_CSR) ? 0 : 1;
>> +}
>> +
>> +static int ar933x_serial_probe(struct udevice *dev)
>> +{
>> +	struct ar933x_serial_priv *priv = dev_get_priv(dev);
>> +	struct ar933x_serial_platdata *plat = dev_get_platdata(dev);
>> +	u32 val;
>> +
>> +	priv->regs = plat->regs;
>> +
>> +	/*
>> +	 * UART controller configuration:
>> +	 * - no DMA
>> +	 * - no interrupt
>> +	 * - DCE mode
>> +	 * - no flow control
>> +	 * - set RX ready oride
>> +	 * - set TX ready oride
>> +	 */
>> +	val = (AR933X_UART_CS_IF_MODE_DCE << AR933X_UART_CS_IF_MODE_S) |
>> +	      AR933X_UART_CS_TX_RDY_ORIDE | AR933X_UART_CS_RX_RDY_ORIDE;
>> +	ar933x_serial_write(dev, val, AR933X_UART_CS_REG);
>> +	return 0;
>> +}
>> +
>> +static int ar933x_serial_ofdata_to_platdata(struct udevice *dev)
>> +{
>> +	struct ar933x_serial_platdata *plat = dev_get_platdata(dev);
>> +	fdt_addr_t addr;
>> +
>> +	addr = dev_get_addr(dev);
>> +	if (addr == FDT_ADDR_T_NONE)
>> +		return -EINVAL;
>> +
>> +	plat->regs = map_physmem(addr,
>> +				 AR933X_UART_SIZE,
>> +				 MAP_NOCACHE);
> move this code to function ar933x_serial_probe and drop this function
Ok.
>> +	return 0;
>> +}
>> +
>> +static const struct dm_serial_ops ar933x_serial_ops = {
>> +	.putc = ar933x_serial_putc,
>> +	.pending = ar933x_serial_pending,
>> +	.getc = ar933x_serial_getc,
>> +	.setbrg = ar933x_serial_setbrg,
>> +};
>> +
>> +static const struct udevice_id ar933x_serial_ids[] = {
>> +	{ .compatible = "ath79,ar933x-uart" },
>> +	{ }
>> +};
>> +
>> +U_BOOT_DRIVER(serial_ar933x) = {
>> +	.name   = "serial_ar933x",
>> +	.id = UCLASS_SERIAL,
>> +	.of_match = ar933x_serial_ids,
>> +	.ofdata_to_platdata = ar933x_serial_ofdata_to_platdata,
>> +	.platdata_auto_alloc_size = sizeof(struct ar933x_serial_platdata),
> drop the two lines, you do not need to allocate platdata
>
Ok.
>> +	.priv_auto_alloc_size = sizeof(struct ar933x_serial_priv),
>> +	.probe = ar933x_serial_probe,
>> +	.ops    = &ar933x_serial_ops,
>> +	.flags = DM_FLAG_PRE_RELOC,
>> +};
>>

^ permalink raw reply	[flat|nested] 39+ messages in thread

* [U-Boot] [PATCH v4 5/8] mips: ath79: add spi driver
  2015-12-26 13:23   ` Daniel Schwierzeck
@ 2015-12-26 16:56     ` Wills Wang
  0 siblings, 0 replies; 39+ messages in thread
From: Wills Wang @ 2015-12-26 16:56 UTC (permalink / raw)
  To: u-boot



On 12/26/2015 09:23 PM, Daniel Schwierzeck wrote:
>
> Am 25.12.2015 um 19:56 schrieb Wills Wang:
>> Signed-off-by: Wills Wang <wills.wang@live.com>
>> ---
>>
>> Changes in v4: None
>> Changes in v3: None
>> Changes in v2: None
>>
>>   drivers/spi/Kconfig     |   8 ++
>>   drivers/spi/Makefile    |   1 +
>>   drivers/spi/ath79_spi.c | 211 ++++++++++++++++++++++++++++++++++++++++++++++++
>>   3 files changed, 220 insertions(+)
>>   create mode 100644 drivers/spi/ath79_spi.c
>>
>> diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig
>> index 2cdb110..a9e1d31 100644
>> --- a/drivers/spi/Kconfig
>> +++ b/drivers/spi/Kconfig
>> @@ -23,6 +23,14 @@ config ALTERA_SPI
>>   	  IP core. Please find details on the "Embedded Peripherals IP
>>   	  User Guide" of Altera.
>>   
>> +config ATH79_SPI
>> +	bool "Atheros SPI driver"
>> +	help
>> +	  Enable the Atheros ar7xxx/ar9xxx SoC SPI driver, it was used
>> +	  to access SPI NOR flash and other SPI peripherals. This driver
>> +	  uses driver model and requires a device tree binding to
>> +	  operate.
>> +
>>   config CADENCE_QSPI
>>   	bool "Cadence QSPI driver"
>>   	help
>> diff --git a/drivers/spi/Makefile b/drivers/spi/Makefile
>> index 3eca745..7fb2926 100644
>> --- a/drivers/spi/Makefile
>> +++ b/drivers/spi/Makefile
>> @@ -17,6 +17,7 @@ endif
>>   
>>   obj-$(CONFIG_ALTERA_SPI) += altera_spi.o
>>   obj-$(CONFIG_ARMADA100_SPI) += armada100_spi.o
>> +obj-$(CONFIG_ATH79_SPI) += ath79_spi.o
>>   obj-$(CONFIG_ATMEL_DATAFLASH_SPI) += atmel_dataflash_spi.o
>>   obj-$(CONFIG_ATMEL_SPI) += atmel_spi.o
>>   obj-$(CONFIG_BFIN_SPI) += bfin_spi.o
>> diff --git a/drivers/spi/ath79_spi.c b/drivers/spi/ath79_spi.c
>> new file mode 100644
>> index 0000000..dcce584
>> --- /dev/null
>> +++ b/drivers/spi/ath79_spi.c
>> @@ -0,0 +1,211 @@
>> +/*
>> + * (C) Copyright 2015
>> + * Wills Wang, <wills.wang@live.com>
>> + *
>> + * SPDX-License-Identifier:	GPL-2.0+
>> + */
>> +
>> +#include <common.h>
>> +#include <spi.h>
>> +#include <dm.h>
>> +#include <errno.h>
>> +#include <asm/io.h>
>> +#include <asm/addrspace.h>
>> +#include <asm/types.h>
>> +#include <asm/arch/ar71xx_regs.h>
> #include <mach/ar71xx_regs.h>
Ok.
>
>> +
>> +/* CLOCK_DIVIDER = 3 (SPI clock = 200 / 8 ~ 25 MHz) */
>> +#define SPI_CLK_DIV(x)     (((x) >> 1) - 1)
>> +
>> +struct ath79_spi_platdata {
>> +	void __iomem *regs;
>> +};
> again, platdata is not needed
Ok.
>> +
>> +struct ath79_spi_priv {
>> +	void __iomem *regs;
>> +};
>> +
>> +static inline u32 ath79_spi_read(struct udevice *bus, u32 offset)
>> +{
>> +	struct ath79_spi_priv *priv = dev_get_priv(bus);
>> +	return readl(priv->regs + offset);
>> +}
>> +
>> +static inline void ath79_spi_write(struct udevice *bus,
>> +					u32 val, u32 offset)
>> +{
>> +	struct ath79_spi_priv *priv = dev_get_priv(bus);
>> +	writel(val, priv->regs + offset);
>> +}
>> +
>> +static int ath79_spi_claim_bus(struct udevice *dev)
>> +{
>> +	return 0;
>> +}
>> +
>> +static int ath79_spi_release_bus(struct udevice *dev)
>> +{
>> +	return 0;
>> +}
>> +
>> +static int ath79_spi_xfer(struct udevice *dev, unsigned int bitlen,
>> +		const void *dout, void *din, unsigned long flags)
>> +{
>> +	struct udevice *bus = dev->parent;
>> +	struct dm_spi_slave_platdata *slave = dev_get_parent_platdata(dev);
>> +	uint8_t *rx = din;
>> +	const uint8_t *tx = dout;
>> +	uint8_t curbyte, curbitlen, restbits;
>> +	uint32_t bytes = bitlen / 8;
>> +	uint32_t out;
>> +	uint32_t in;
>> +
>> +	if (flags & SPI_XFER_BEGIN) {
>> +		ath79_spi_write(bus, AR71XX_SPI_FS_GPIO, AR71XX_SPI_REG_FS);
>> +		ath79_spi_write(bus, AR71XX_SPI_IOC_CS_ALL, AR71XX_SPI_REG_IOC);
>> +	}
>> +
>> +	restbits = (bitlen % 8);
>> +	if (restbits)
>> +		bytes++;
>> +
>> +	/* enable chip select */
>> +	out = AR71XX_SPI_IOC_CS_ALL & ~(AR71XX_SPI_IOC_CS(slave->cs));
>> +	while (bytes--) {
>> +		curbyte = 0;
>> +		if (tx)
>> +			curbyte = *tx++;
>> +
>> +		if (restbits) {
>> +			curbitlen = restbits;
>> +			curbyte <<= 8 - restbits;
>> +		} else {
>> +			curbitlen = 8;
>> +		}
>> +
>> +		/* clock starts at inactive polarity */
>> +		for (curbyte <<= (8 - curbitlen); curbitlen; curbitlen--) {
>> +			if (curbyte & 0x80)
>> +				out |= AR71XX_SPI_IOC_DO;
>> +			else
>> +				out &= ~(AR71XX_SPI_IOC_DO);
>> +
>> +			/* setup MSB (to slave) on trailing edge */
>> +			ath79_spi_write(bus, out, AR71XX_SPI_REG_IOC);
>> +			ath79_spi_write(bus, out | AR71XX_SPI_IOC_CLK,
>> +					AR71XX_SPI_REG_IOC);
>> +			curbyte <<= 1;
>> +		}
>> +
>> +		in = ath79_spi_read(bus, AR71XX_SPI_REG_RDS);
>> +		if (rx) {
>> +			if (restbits)
>> +				*rx++ = (in << (8 - restbits));
>> +			else
>> +				*rx++ = in;
>> +		}
>> +	}
>> +
>> +	if (flags & SPI_XFER_END) {
>> +		ath79_spi_write(bus, AR71XX_SPI_IOC_CS(slave->cs),
>> +				AR71XX_SPI_REG_IOC);
>> +		ath79_spi_write(bus, AR71XX_SPI_IOC_CS_ALL, AR71XX_SPI_REG_IOC);
>> +		ath79_spi_write(bus, 0, AR71XX_SPI_REG_FS);
>> +	}
>> +
>> +	return 0;
>> +}
>> +
>> +
>> +static int ath79_spi_set_speed(struct udevice *bus, uint speed)
>> +{
>> +	u32 val, div = 0;
>> +
>> +	if (speed)
>> +		div = get_bus_freq(0) / speed;
>> +
>> +	if (div > 63)
>> +		div = 63;
>> +
>> +	if (div < 5)
>> +		div = 5;
>> +
>> +	ath79_spi_write(bus, AR71XX_SPI_FS_GPIO, AR71XX_SPI_REG_FS);
>> +	val = ath79_spi_read(bus, AR71XX_SPI_REG_CTRL);
>> +	val &= ~AR71XX_SPI_CTRL_DIV_MASK;
>> +	val |= SPI_CLK_DIV(div);
>> +	ath79_spi_write(bus, val, AR71XX_SPI_REG_CTRL);
>> +	ath79_spi_write(bus, 0, AR71XX_SPI_REG_FS);
>> +	return 0;
>> +}
>> +
>> +static int ath79_spi_set_mode(struct udevice *bus, uint mode)
>> +{
>> +	return 0;
>> +}
>> +
>> +static int ath79_spi_probe(struct udevice *bus)
>> +{
>> +	struct ath79_spi_priv *priv = dev_get_priv(bus);
>> +	struct ath79_spi_platdata *plat = dev_get_platdata(bus);
>> +
>> +	priv->regs = plat->regs;
>> +
>> +	/* Init SPI Hardware, disable remap, set clock */
>> +	ath79_spi_write(bus, AR71XX_SPI_FS_GPIO, AR71XX_SPI_REG_FS);
>> +	ath79_spi_write(bus, AR71XX_SPI_CTRL_RD | SPI_CLK_DIV(8),
>> +			AR71XX_SPI_REG_CTRL);
>> +	ath79_spi_write(bus, 0, AR71XX_SPI_REG_FS);
>> +
>> +	return 0;
>> +}
>> +
>> +static int ath79_cs_info(struct udevice *bus, uint cs,
>> +			   struct spi_cs_info *info)
>> +{
>> +	/* Always allow activity on CS 0/1/2 */
>> +	if (cs >= 3)
>> +		return -ENODEV;
>> +
>> +	return 0;
>> +}
>> +
>> +static int ath79_spi_ofdata_to_platdata(struct udevice *bus)
>> +{
>> +	struct ath79_spi_platdata *plat = dev_get_platdata(bus);
>> +	fdt_addr_t addr;
>> +
>> +	addr = dev_get_addr(bus);
>> +	if (addr == FDT_ADDR_T_NONE)
>> +		return -EINVAL;
>> +
>> +	plat->regs = map_physmem(addr,
>> +				 AR71XX_SPI_SIZE,
>> +				 MAP_NOCACHE);
> move this code to function ath79_spi_probe and drop this function
Ok.
>> +	return 0;
>> +}
>> +
>> +static const struct dm_spi_ops ath79_spi_ops = {
>> +	.claim_bus  = ath79_spi_claim_bus,
>> +	.release_bus    = ath79_spi_release_bus,
>> +	.xfer       = ath79_spi_xfer,
>> +	.set_speed  = ath79_spi_set_speed,
>> +	.set_mode   = ath79_spi_set_mode,
>> +	.cs_info    = ath79_cs_info,
>> +};
>> +
>> +static const struct udevice_id ath79_spi_ids[] = {
>> +	{ .compatible = "ath79,ath79-spi" },
>> +	{}
>> +};
>> +
>> +U_BOOT_DRIVER(ath79_spi) = {
>> +	.name   = "ath79_spi",
>> +	.id = UCLASS_SPI,
>> +	.of_match = ath79_spi_ids,
>> +	.ops    = &ath79_spi_ops,
>> +	.ofdata_to_platdata = ath79_spi_ofdata_to_platdata,
>> +	.platdata_auto_alloc_size = sizeof(struct ath79_spi_platdata),
> again, no platdata needed
Ok.
>> +	.priv_auto_alloc_size = sizeof(struct ath79_spi_priv),
>> +	.probe  = ath79_spi_probe,
>> +};
>>

^ permalink raw reply	[flat|nested] 39+ messages in thread

* [U-Boot] [PATCH v4 6/8] mips: ath79: add AP121 reference board
  2015-12-26 13:52   ` Daniel Schwierzeck
@ 2015-12-26 16:59     ` Wills Wang
  2015-12-26 17:07       ` Daniel Schwierzeck
  2015-12-27  6:36     ` Wills Wang
  1 sibling, 1 reply; 39+ messages in thread
From: Wills Wang @ 2015-12-26 16:59 UTC (permalink / raw)
  To: u-boot



On 12/26/2015 09:52 PM, Daniel Schwierzeck wrote:
>
> Am 25.12.2015 um 19:56 schrieb Wills Wang:
>> Signed-off-by: Wills Wang <wills.wang@live.com>
>> ---
>>
>> Changes in v4: None
>> Changes in v3: None
>> Changes in v2: None
>>
>>   arch/mips/Kconfig             |  8 +++++
>>   arch/mips/dts/Makefile        |  2 +-
>>   arch/mips/dts/ap121.dts       | 37 +++++++++++++++++++
>>   arch/mips/dts/ar933x.dtsi     | 64 +++++++++++++++++++++++++++++++++
>>   board/ath79/ap121/Kconfig     | 15 ++++++++
>>   board/ath79/ap121/MAINTAINERS |  6 ++++
>>   board/ath79/ap121/Makefile    |  8 +++++
>>   board/ath79/ap121/README      | 18 ++++++++++
>>   board/ath79/ap121/ap121.c     | 17 +++++++++
>>   board/ath79/ap121/config.mk   | 16 +++++++++
>>   configs/ap121_defconfig       | 42 ++++++++++++++++++++++
>>   include/configs/ap121.h       | 82 +++++++++++++++++++++++++++++++++++++++++++
>>   12 files changed, 314 insertions(+), 1 deletion(-)
>>   create mode 100644 arch/mips/dts/ap121.dts
>>   create mode 100644 arch/mips/dts/ar933x.dtsi
>>   create mode 100644 board/ath79/ap121/Kconfig
>>   create mode 100644 board/ath79/ap121/MAINTAINERS
>>   create mode 100644 board/ath79/ap121/Makefile
>>   create mode 100644 board/ath79/ap121/README
>>   create mode 100644 board/ath79/ap121/ap121.c
>>   create mode 100644 board/ath79/ap121/config.mk
>>   create mode 100644 configs/ap121_defconfig
>>   create mode 100644 include/configs/ap121.h
>>
>> diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
>> index 7f7e258..09b8709 100644
>> --- a/arch/mips/Kconfig
>> +++ b/arch/mips/Kconfig
>> @@ -51,6 +51,13 @@ config TARGET_PB1X00
>>   	select SUPPORTS_CPU_MIPS32_R2
>>   	select SYS_MIPS_CACHE_INIT_RAM_LOAD
>>   
>> +config TARGET_AP121
>> +	bool "Support ap121"
>> +	select SUPPORTS_BIG_ENDIAN
>> +	select SUPPORTS_CPU_MIPS32_R1
>> +	select SUPPORTS_CPU_MIPS32_R2
>> +	select SYS_MIPS_CACHE_INIT_RAM_LOAD
>> +
> please create a dedicated Kconfig in arch/mips/mach-ath79/ and add this
> board there. Have a look at following links for examples:
>
> https://github.com/danielschwierzeck/u-boot-lantiq/blob/lantiq/upstream/arch/mips/mach-lantiq/Kconfig
>
> http://patchwork.ozlabs.org/patch/558465/
> http://patchwork.ozlabs.org/patch/558469/
Ok.
>>   
>>   endchoice
>>   
>> @@ -59,6 +66,7 @@ source "board/imgtec/malta/Kconfig"
>>   source "board/micronas/vct/Kconfig"
>>   source "board/pb1x00/Kconfig"
>>   source "board/qemu-mips/Kconfig"
>> +source "board/ath79/ap121/Kconfig"
>>   
>>   if MIPS
>>   
>> diff --git a/arch/mips/dts/Makefile b/arch/mips/dts/Makefile
>> index 47b6eb5..6f8b413 100644
>> --- a/arch/mips/dts/Makefile
>> +++ b/arch/mips/dts/Makefile
>> @@ -2,7 +2,7 @@
>>   # SPDX-License-Identifier:	GPL-2.0+
>>   #
>>   
>> -dtb-y +=
>> +dtb-$(CONFIG_TARGET_AP121) += ap121.dtb
>>   
>>   targets += $(dtb-y)
>>   
>> diff --git a/arch/mips/dts/ap121.dts b/arch/mips/dts/ap121.dts
>> new file mode 100644
>> index 0000000..769458a
>> --- /dev/null
>> +++ b/arch/mips/dts/ap121.dts
>> @@ -0,0 +1,37 @@
>> +/dts-v1/;
>> +#include "ar933x.dtsi"
>> +
>> +/ {
>> +	model = "AP121 Reference Board";
>> +	compatible = "ath79,ap121", "ath79,ar933x";
>> +
>> +	aliases {
>> +		spi0 = &spi0;
>> +		serial0 = &uart0;
>> +	};
>> +
>> +	chosen {
>> +		stdout-path = "serial0:115200n8";
>> +	};
>> +};
>> +
>> +&xtal {
>> +	clock-frequency = <25000000>;
>> +};
>> +
>> +&uart0 {
>> +	status = "okay";
>> +};
>> +
>> +&spi0 {
>> +	spi-max-frequency = <25000000>;
>> +	status = "okay";
>> +	spi-flash at 0 {
>> +		#address-cells = <1>;
>> +		#size-cells = <1>;
>> +		compatible = "spi-flash";
>> +		memory-map = <0x9f000000 0x00800000>;
>> +		spi-max-frequency = <25000000>;
>> +		reg = <0>;
>> +	};
>> +};
>> diff --git a/arch/mips/dts/ar933x.dtsi b/arch/mips/dts/ar933x.dtsi
>> new file mode 100644
>> index 0000000..64b30f7
>> --- /dev/null
>> +++ b/arch/mips/dts/ar933x.dtsi
>> @@ -0,0 +1,64 @@
>> +#include "skeleton.dtsi"
>> +
>> +/ {
>> +	compatible = "ath79,ar933x";
> the first part should be a vendor name and according to device-trees
> from kernel this should be "qca"
Ok.
>> +
>> +	#address-cells = <1>;
>> +	#size-cells = <1>;
>> +
>> +	cpus {
>> +		#address-cells = <1>;
>> +		#size-cells = <0>;
>> +
>> +		cpu at 0 {
>> +			device_type = "cpu";
>> +			compatible = "mips,mips24Kc";
>> +			reg = <0>;
>> +		};
>> +	};
>> +
>> +	clocks {
>> +		#address-cells = <1>;
>> +		#size-cells = <1>;
>> +		ranges;
>> +
>> +		xtal: xtal {
>> +			#clock-cells = <0>;
>> +			compatible = "fixed-clock";
>> +			clock-output-names = "xtal";
>> +		};
>> +	};
>> +
>> +	ahb {
>> +		compatible = "simple-bus";
>> +		ranges;
>> +
>> +		#address-cells = <1>;
>> +		#size-cells = <1>;
>> +
>> +		apb {
>> +			compatible = "simple-bus";
>> +			ranges;
>> +
>> +			#address-cells = <1>;
>> +			#size-cells = <1>;
>> +
>> +			uart0: uart at 18020000 {
>> +				compatible = "ath79,ar933x-uart";
> I suggest to use "qca,ar9330-uart" like the kernel driver
>
Ok.
>> +				reg = <0x18020000 0x20>;
>> +
>> +				status = "disabled";
>> +			};
>> +		};
>> +
>> +		spi0: spi at 1f000000 {
>> +			compatible = "ath79,ath79-spi";
> I suggest to use "qca,ar7100-spi" like the kernel driver
Ok.
>> +			reg = <0x1f000000 0x10>;
>> +
>> +			status = "disabled";
>> +
>> +			#address-cells = <1>;
>> +			#size-cells = <0>;
>> +		};
>> +	};
>> +};
>> diff --git a/board/ath79/ap121/Kconfig b/board/ath79/ap121/Kconfig
>> new file mode 100644
>> index 0000000..88d9eff
>> --- /dev/null
>> +++ b/board/ath79/ap121/Kconfig
>> @@ -0,0 +1,15 @@
>> +if TARGET_AP121
>> +
>> +config SYS_BOARD
>> +	default "ap121"
>> +
>> +config SYS_VENDOR
>> +	default "ath79"
>> +
>> +config SYS_SOC
>> +	default "ath79"
>> +
>> +config SYS_CONFIG_NAME
>> +	default "ap121"
>> +
>> +endif
>> diff --git a/board/ath79/ap121/MAINTAINERS b/board/ath79/ap121/MAINTAINERS
>> new file mode 100644
>> index 0000000..319b521
>> --- /dev/null
>> +++ b/board/ath79/ap121/MAINTAINERS
>> @@ -0,0 +1,6 @@
>> +AP121 BOARD
>> +M:	Wills Wang <wills.wang@live.com>
>> +S:	Maintained
>> +F:	board/ath79/ap121/
>> +F:	include/configs/ap121.h
>> +F:	configs/ap121_defconfig
>> diff --git a/board/ath79/ap121/Makefile b/board/ath79/ap121/Makefile
>> new file mode 100644
>> index 0000000..9132118
>> --- /dev/null
>> +++ b/board/ath79/ap121/Makefile
>> @@ -0,0 +1,8 @@
>> +#
>> +# (C) Copyright 2003-2006
>> +# Wolfgang Denk, DENX Software Engineering, wd at denx.de.
> again, no historic copyright needed for a simple one-line Makefile
Ok.
>> +#
>> +# SPDX-License-Identifier:	GPL-2.0+
>> +#
>> +
>> +obj-y	= ap121.o
>> diff --git a/board/ath79/ap121/README b/board/ath79/ap121/README
>> new file mode 100644
>> index 0000000..104850f
>> --- /dev/null
>> +++ b/board/ath79/ap121/README
>> @@ -0,0 +1,18 @@
>> +ATHEROS AP121
>> +==================
>> +
>> +Supported hardware: AP121 referance board.
>> +
>> +Files of the AP121 port
>> +--------------------------
>> +
>> +arch/mips/mach-ath79/ar933x/	- The CPU support code for the Atheros ar933x
>> +arch/mips/include/asm/arch-ath79	- Header files for the Atheros ath79
>> +board/ath79/ap121/	- AP121 board specific files
>> +include/configs/ap121.h	- AP121 configuration file
>> +
>> +Configure
>> +-------------------
>> +
>> +To configure for the current board
>> +	make ap121_defconfig
> you can drop this README. There is no new or relevant information in it
>
Ok.
>> diff --git a/board/ath79/ap121/ap121.c b/board/ath79/ap121/ap121.c
>> new file mode 100644
>> index 0000000..f60f88b
>> --- /dev/null
>> +++ b/board/ath79/ap121/ap121.c
>> @@ -0,0 +1,17 @@
>> +/*
>> + * (C) Copyright 2015
>> + * Wills Wang, <wills.wang@live.com>
>> + *
>> + * SPDX-License-Identifier:	GPL-2.0+
>> + */
>> +
>> +#include <common.h>
>> +#include <command.h>
>> +#include <asm/mipsregs.h>
>> +#include <asm/addrspace.h>
>> +#include <asm/io.h>
>> +
>> +int checkboard(void)
>> +{
>> +	return 0;
>> +}
> you could/should print your board name here
U-boot print the board model property from device tree when power up,
I think it's duplicated.
>> diff --git a/board/ath79/ap121/config.mk b/board/ath79/ap121/config.mk
>> new file mode 100644
>> index 0000000..f7dd3b7
>> --- /dev/null
>> +++ b/board/ath79/ap121/config.mk
>> @@ -0,0 +1,16 @@
>> +#
>> +# (C) Copyright 2003
>> +# Wolfgang Denk, DENX Software Engineering, wd at denx.de.
>> +#
>> +# SPDX-License-Identifier:	GPL-2.0+
>> +#
>> +
>> +#
>> +# AP121 referance board, MIPS32 core
>> +#
>> +
>> +# ROM version
>> +CONFIG_SYS_TEXT_BASE = 0x9f000000
>> +
>> +# RAM version
>> +#CONFIG_SYS_TEXT_BASE = 0x80010000
> config.mk files in board directory are also deprecated. Please add
> "#define CONFIG_SYS_TEXT_BASE 0x9f000000" to include/configs/ap121.h
Ok.
>> diff --git a/configs/ap121_defconfig b/configs/ap121_defconfig
>> new file mode 100644
>> index 0000000..cec0bb7
>> --- /dev/null
>> +++ b/configs/ap121_defconfig
>> @@ -0,0 +1,42 @@
>> +CONFIG_MIPS=y
>> +CONFIG_TARGET_AP121=y
>> +CONFIG_SYS_MALLOC_F_LEN=0x2000
>> +CONFIG_SYS_PROMPT="ap121 # "
>> +CONFIG_OF_CONTROL=y
>> +CONFIG_DEFAULT_DEVICE_TREE="ap121"
>> +CONFIG_DM=y
> options like CONFIG_OF_CONTROL and CONFIG_DM should be pre-selected by
> the mach or SoC specific Kconfig file if you always require it. An user
> of your board should not be able to disable those options.
>
Ok.
>> +CONFIG_DM_SERIAL=y
>> +CONFIG_DM_SPI=y
>> +CONFIG_DM_SPI_FLASH=y
>> +CONFIG_ATH79_SPI=y
>> +CONFIG_SPI_FLASH=y
>> +CONFIG_SPI_FLASH_BAR=y
>> +CONFIG_SPI_FLASH_ATMEL=y
>> +CONFIG_SPI_FLASH_EON=y
>> +CONFIG_SPI_FLASH_GIGADEVICE=y
>> +CONFIG_SPI_FLASH_MACRONIX=y
>> +CONFIG_SPI_FLASH_SPANSION=y
>> +CONFIG_SPI_FLASH_STMICRO=y
>> +CONFIG_SPI_FLASH_SST=y
>> +CONFIG_SPI_FLASH_WINBOND=y
>> +CONFIG_SPI_FLASH_USE_4K_SECTORS=y
>> +CONFIG_SPI_FLASH_DATAFLASH=y
>> +CONFIG_SPI_FLASH_MTD=y
>> +CONFIG_CMD_DM=y
>> +CONFIG_CMD_SF=y
>> +CONFIG_CMD_SPI=y
>> +# CONFIG_NET is not set
>> +# CONFIG_CMD_BDI is not set
>> +# CONFIG_CMD_CONSOLE is not set
>> +# CONFIG_CMD_IMLS is not set
>> +# CONFIG_CMD_XIMG is not set
>> +# CONFIG_CMD_ELF is not set
>> +# CONFIG_CMD_EXPORTENV is not set
>> +# CONFIG_CMD_IMPORTENV is not set
>> +# CONFIG_CMD_EDITENV is not set
>> +# CONFIG_CMD_CRC32 is not set
>> +# CONFIG_CMD_FLASH is not set
>> +# CONFIG_CMD_FPGA is not set
>> +# CONFIG_CMD_NFS is not set
>> +# CONFIG_CMD_NET is not set
>> +CONFIG_USE_PRIVATE_LIBGCC=y
>> diff --git a/include/configs/ap121.h b/include/configs/ap121.h
>> new file mode 100644
>> index 0000000..5a01d11
>> --- /dev/null
>> +++ b/include/configs/ap121.h
>> @@ -0,0 +1,82 @@
>> +#ifndef __CONFIG_H
>> +#define __CONFIG_H
>> +
>> +#include <linux/kconfig.h>
>> +#include <linux/sizes.h>
> those includes are not needed in a board config header file respectively
> they are already included implicitely
Ok.
>> +
>> +#define CONFIG_ARCH_ATH79
>> +#define CONFIG_SOC_AR933X
> this is already configured by Kconfig
>
Ok.
>> +
>> +#define CONFIG_DISPLAY_CPUINFO
>> +#define CONFIG_DISPLAY_BOARDINFO
>> +
>> +#define CONFIG_OF_LIBFDT
>> +
>> +#define CONFIG_SYS_HZ                   1000
>> +#define CONFIG_SYS_MHZ                  200
>> +#define CONFIG_SYS_MIPS_TIMER_FREQ      (CONFIG_SYS_MHZ * 1000000)
>> +
>> +/* Cache Configuration */
>> +#define CONFIG_SYS_DCACHE_SIZE          32 * SZ_1K
>> +#define CONFIG_SYS_ICACHE_SIZE          64 * SZ_1K
>> +#define CONFIG_SYS_CACHELINE_SIZE       32
> you can drop this, the cache sizes will be detected automatically
I  have a try later,  i will drop this if it work fine.
>> +
>> +#define CONFIG_SYS_MONITOR_BASE         CONFIG_SYS_TEXT_BASE
>> +
>> +#define CONFIG_SYS_MALLOC_LEN           ROUND(0x30000 + 128 * SZ_1K, 0x1000)
> no need for a magic calculation, please choose a fixed value
Ok.
>> +
>> +#define CONFIG_SYS_BOOTPARAMS_LEN       128 * SZ_1K
>> +
>> +#define CONFIG_SYS_SDRAM_BASE           0x80000000
>> +#define CONFIG_SYS_LOAD_ADDR            0x81000000
>> +
>> +#define CONFIG_SYS_INIT_SP_OFFSET       0x20000
>> +#define CONFIG_SYS_NO_FLASH
>> +
>> +#define CONFIG_AR933X_SERIAL
> this is already configured by Kconfig
Ok.
>> +#define CONFIG_BAUDRATE                 115200
>> +#define CONFIG_SYS_BAUDRATE_TABLE       {9600, 19200, 38400, 57600, 115200}
>> +
>> +#define CONFIG_BOOTDELAY                3
>> +#define CONFIG_BOOTARGS                 "console=ttyS0,115200 " \
>> +					"root=/dev/mtdblock2 " \
>> +					"rootfstype=squashfs"
>> +#define CONFIG_BOOTCOMMAND              "sf probe;" \
>> +					"mtdparts default;" \
>> +					"bootm 0x9f300000"
>> +#define CONFIG_LZMA
>> +
>> +#define MTDIDS_DEFAULT                  "nor0=spi-flash.0"
>> +#define MTDPARTS_DEFAULT                "mtdparts=spi-flash.0:256k(u-boot)," \
>> +		"64k(u-boot-env),2752k(rootfs),896k(uImage),64k(NVRAM),64k(ART)"
>> +
>> +#define CONFIG_ENV_SPI_MAX_HZ           25000000
>> +#define CONFIG_ENV_IS_IN_SPI_FLASH
>> +#define CONFIG_ENV_OFFSET               (256 * SZ_1K)
>> +#define CONFIG_ENV_SECT_SIZE            (64 * SZ_1K)
>> +#define CONFIG_ENV_SIZE                 (64 * SZ_1K)
>> +
>> +/*
>> + * Command
>> + */
>> +#define CONFIG_CMD_MTDPARTS
>> +
>> +/* Miscellaneous configurable options */
>> +#define CONFIG_SYS_CBSIZE               256
>> +#define CONFIG_SYS_MAXARGS              16
>> +#define CONFIG_SYS_PBSIZE               (CONFIG_SYS_CBSIZE + \
>> +					sizeof(CONFIG_SYS_PROMPT) + 16)
>> +#define CONFIG_SYS_LONGHELP
>> +#define CONFIG_CMDLINE_EDITING
>> +#define CONFIG_AUTO_COMPLETE
>> +#define CONFIG_SYS_HUSH_PARSER
>> +#define CONFIG_SYS_PROMPT_HUSH_PS2      "> "
> this is already configured by Kconfig
Ok.
>> +
>> +/*
>> + * Diagnostics
>> + */
>> +#define CONFIG_SYS_MEMTEST_START        0x80100000
>> +#define CONFIG_SYS_MEMTEST_END          0x83f00000
>> +#define CONFIG_CMD_MEMTEST
>> +
>> +#endif  /* __CONFIG_H */
>>

^ permalink raw reply	[flat|nested] 39+ messages in thread

* [U-Boot] [PATCH v4 3/8] mips: add base support for atheros ath79 based SOCs
  2015-12-26 16:17     ` Wills Wang
@ 2015-12-26 17:01       ` Daniel Schwierzeck
  2015-12-26 17:06         ` Marek Vasut
  2015-12-27  9:37         ` Wills Wang
  0 siblings, 2 replies; 39+ messages in thread
From: Daniel Schwierzeck @ 2015-12-26 17:01 UTC (permalink / raw)
  To: u-boot



Am 26.12.2015 um 17:17 schrieb Wills Wang:
> 
> 
> On 12/26/2015 03:28 PM, Marek Vasut wrote:
>> On Friday, December 25, 2015 at 07:56:23 PM, Wills Wang wrote:
>>> This patch enable work for ar933x SOC, tested on ar9331 board.
>>>
>>> Signed-off-by: Wills Wang <wills.wang@live.com>
>>> ---
>> [...]
>>
>>> +int arch_cpu_init(void)
>>> +{
>>> +    u32 val;
>>> +
>>> +    /*
>>> +     * Set GPIO10 (UART_SO) as output and enable UART,
>>> +     * BIT(15) in GPIO_FUNCTION_1 register must be written with 1
>>> +     */
>>> +    val = readl(KSEG1ADDR(AR71XX_GPIO_BASE + AR71XX_GPIO_REG_OE));
>>> +    val |= BIT(10);
>>> +    writel(val, KSEG1ADDR(AR71XX_GPIO_BASE + AR71XX_GPIO_REG_OE));
>>> +
>>> +    val = readl(KSEG1ADDR(AR71XX_GPIO_BASE + AR71XX_GPIO_REG_FUNC));
>>> +    val |= (AR933X_GPIO_FUNC_UART_EN | BIT(15));
>>> +    writel(val, KSEG1ADDR(AR71XX_GPIO_BASE + AR71XX_GPIO_REG_FUNC));
>>> +    return 0;
>>> +}
>> Pinmux should be done on a per-board basis, not per-CPU. Also, please use
>> setbits_le32().
> I don't find other more fit entry for pinctrl initialization.
> We must set these IO pin before serial initialization.
> Put it into board directory?

you could use the board_early_init_f hook, implemented in
board/ath79/ap121/ap121.c. If possible you should add a real pinctrl
driver in a later step

>>> diff --git a/arch/mips/mach-ath79/ar933x/ddr_tap.S
>>> b/arch/mips/mach-ath79/ar933x/ddr_tap.S new file mode 100644
>>> index 0000000..18c57de
>>> --- /dev/null
>>> +++ b/arch/mips/mach-ath79/ar933x/ddr_tap.S
>>> @@ -0,0 +1,268 @@
>>> +/*
>>> + * (C) Copyright 2015
>>> + * Wills Wang, <wills.wang@live.com>
>>> + *
>>> + * SPDX-License-Identifier: GPL-2.0+
>>> + */
>>> +
>>> +#include <config.h>
>>> +#include <asm/asm.h>
>>> +#include <asm/regdef.h>
>>> +#include <asm/mipsregs.h>
>>> +#include <asm/addrspace.h>
>>> +#include <asm/arch/ar71xx_regs.h>
>>> +
>>> +#define DRAM_K0(x)      KSEG0ADDR(x)
>>> +#define DRAM_K1(x)      KSEG1ADDR(x)
>>> +
>>> +    .text
>>> +    .set noreorder
>>> +
>>> +LEAF(ddr_tap_init)
>>> +    /* Tap settings for the DDR */
>>> +    li      t0, 0xffffffff
>>> +    li      t1, DRAM_K0(0x500000)
>>> +    sw      t0, 0x0(t1)
>>> +    sw      t0, 0x4(t1)
>>> +    sw      t0, 0x8(t1)
>>> +    sw      t0, 0xc(t1)
>>> +    nop
>>> +    nop
>> This should be C code, pretty please.
> Must this be change to c code?
> I think there should be no problem.

this function is only called from init_dram() which already runs in a
full C environment. The conversion to C should be simple. But I would
accept the current patch for the initial merge if you do the conversion
later.

>>
>> [...]
>>
>>> diff --git a/arch/mips/mach-ath79/ar933x/lowlevel_init.S
>>> b/arch/mips/mach-ath79/ar933x/lowlevel_init.S new file mode 100644
>>> index 0000000..72509ca
>>> --- /dev/null
>>> +++ b/arch/mips/mach-ath79/ar933x/lowlevel_init.S
>> lowlevel_init.S should be C code too, I don't see anything which would
>> require this to be ASM .
> I don't find SRAM in this chip, we need DDR memory to handle C runtime
> statck.

currently lowlevel_init() must be coded in assembly because it runs
before RAM and caches are initialized. This function only exists to do
that initialization. MIPS did this from the beginning. Maybe I will send
some patches to use locked cache lines, but that should not be a hard
requirement for adding new SoC's. Actually all modern MIPS based SoC's
have some type of SRAM or first-stage bootloaders, thus adding the cache
line lock feature was not really necessary. I would accept the current
patch for the initial merge.

>> [...]
>>
>>> diff --git a/arch/mips/mach-ath79/cpu.c b/arch/mips/mach-ath79/cpu.c
>>> new file mode 100644
>>> index 0000000..681127c
>>> --- /dev/null
>>> +++ b/arch/mips/mach-ath79/cpu.c
>>> @@ -0,0 +1,171 @@
>>> +/*
>>> + * (C) Copyright 2015
>>> + * Wills Wang, <wills.wang@live.com>
>>> + *
>>> + * SPDX-License-Identifier:    GPL-2.0+
>>> + */
>>> +
>>> +#include <common.h>
>>> +#include <asm/io.h>
>>> +#include <asm/addrspace.h>
>>> +#include <asm/types.h>
>>> +#include <asm/arch/ath79.h>
>>> +#include <asm/arch/ar71xx_regs.h>
>>> +
>>> +int print_cpuinfo(void)
>>> +{
>>> +    enum ath79_soc_type soc = ATH79_SOC_UNKNOWN;
>>> +    char *chip = "????";

const char *chip

>>> +    u32 id, major, minor;
>>> +    u32 rev = 0;
>>> +    u32 ver = 1;
>>> +
>>> +    id = readl(KSEG1ADDR(AR71XX_RESET_BASE + AR71XX_RESET_REG_REV_ID));
>>> +    major = id & REV_ID_MAJOR_MASK;
>>> +
>>> +    switch (major) {
>>> +    case REV_ID_MAJOR_AR71XX:
>>> +        minor = id & AR71XX_REV_ID_MINOR_MASK;
>>> +        rev = id >> AR71XX_REV_ID_REVISION_SHIFT;
>>> +        rev &= AR71XX_REV_ID_REVISION_MASK;
>>> +        switch (minor) {
>> I did review this already and my suggestions were ignored :-( I stop
>> here ...
> Sorry, I forget this.
> This code inherit from kernel, to change would maintain it much more
> difficult.
>>

I agree with Marek that a lookup table would be better. But why do you
want to add all possible QCA based SoC's? Until there is no supported
board for other SoC's than yours, this would be dead code.

-- 
- Daniel

^ permalink raw reply	[flat|nested] 39+ messages in thread

* [U-Boot] [PATCH v4 3/8] mips: add base support for atheros ath79 based SOCs
  2015-12-26 17:01       ` Daniel Schwierzeck
@ 2015-12-26 17:06         ` Marek Vasut
  2015-12-27  9:37         ` Wills Wang
  1 sibling, 0 replies; 39+ messages in thread
From: Marek Vasut @ 2015-12-26 17:06 UTC (permalink / raw)
  To: u-boot

On Saturday, December 26, 2015 at 06:01:36 PM, Daniel Schwierzeck wrote:

[...]

> >> This should be C code, pretty please.
> > 
> > Must this be change to c code?
> > I think there should be no problem.
> 
> this function is only called from init_dram() which already runs in a
> full C environment. The conversion to C should be simple. But I would
> accept the current patch for the initial merge if you do the conversion
> later.

I'm quite opposed to that, we should keep the code out of tree until it's
in sensible state, otherwise it'd only set a bad example. Especially if the
conversion is easy and it has full C env, we should just do that.

> >> [...]
> >> 
> >>> diff --git a/arch/mips/mach-ath79/ar933x/lowlevel_init.S
> >>> b/arch/mips/mach-ath79/ar933x/lowlevel_init.S new file mode 100644
> >>> index 0000000..72509ca
> >>> --- /dev/null
> >>> +++ b/arch/mips/mach-ath79/ar933x/lowlevel_init.S
> >> 
> >> lowlevel_init.S should be C code too, I don't see anything which would
> >> require this to be ASM .
> > 
> > I don't find SRAM in this chip, we need DDR memory to handle C runtime
> > statck.
> 
> currently lowlevel_init() must be coded in assembly because it runs
> before RAM and caches are initialized. This function only exists to do
> that initialization. MIPS did this from the beginning. Maybe I will send
> some patches to use locked cache lines, but that should not be a hard
> requirement for adding new SoC's. Actually all modern MIPS based SoC's
> have some type of SRAM or first-stage bootloaders, thus adding the cache
> line lock feature was not really necessary. I would accept the current
> patch for the initial merge.

I believe the AR9331 has SRAM , at least according to the datasheet I have.
We should therefore use it.

[...]

Best regards,
Marek Vasut

^ permalink raw reply	[flat|nested] 39+ messages in thread

* [U-Boot] [PATCH v4 6/8] mips: ath79: add AP121 reference board
  2015-12-26 16:59     ` Wills Wang
@ 2015-12-26 17:07       ` Daniel Schwierzeck
  0 siblings, 0 replies; 39+ messages in thread
From: Daniel Schwierzeck @ 2015-12-26 17:07 UTC (permalink / raw)
  To: u-boot



Am 26.12.2015 um 17:59 schrieb Wills Wang:
> 
> 
> On 12/26/2015 09:52 PM, Daniel Schwierzeck wrote:
>>
>> Am 25.12.2015 um 19:56 schrieb Wills Wang:
>>> Signed-off-by: Wills Wang <wills.wang@live.com>
>>> ---
>>>
>>> Changes in v4: None
>>> Changes in v3: None
>>> Changes in v2: None
>>>
>>>   arch/mips/Kconfig             |  8 +++++
>>>   arch/mips/dts/Makefile        |  2 +-
>>>   arch/mips/dts/ap121.dts       | 37 +++++++++++++++++++
>>>   arch/mips/dts/ar933x.dtsi     | 64 +++++++++++++++++++++++++++++++++
>>>   board/ath79/ap121/Kconfig     | 15 ++++++++
>>>   board/ath79/ap121/MAINTAINERS |  6 ++++
>>>   board/ath79/ap121/Makefile    |  8 +++++
>>>   board/ath79/ap121/README      | 18 ++++++++++
>>>   board/ath79/ap121/ap121.c     | 17 +++++++++
>>>   board/ath79/ap121/config.mk   | 16 +++++++++
>>>   configs/ap121_defconfig       | 42 ++++++++++++++++++++++
>>>   include/configs/ap121.h       | 82
>>> +++++++++++++++++++++++++++++++++++++++++++
>>>   12 files changed, 314 insertions(+), 1 deletion(-)
>>>   create mode 100644 arch/mips/dts/ap121.dts
>>>   create mode 100644 arch/mips/dts/ar933x.dtsi
>>>   create mode 100644 board/ath79/ap121/Kconfig
>>>   create mode 100644 board/ath79/ap121/MAINTAINERS
>>>   create mode 100644 board/ath79/ap121/Makefile
>>>   create mode 100644 board/ath79/ap121/README
>>>   create mode 100644 board/ath79/ap121/ap121.c
>>>   create mode 100644 board/ath79/ap121/config.mk
>>>   create mode 100644 configs/ap121_defconfig
>>>   create mode 100644 include/configs/ap121.h
>>>
>>> diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
>>> index 7f7e258..09b8709 100644
>>> --- a/arch/mips/Kconfig
>>> +++ b/arch/mips/Kconfig
>>> @@ -51,6 +51,13 @@ config TARGET_PB1X00
>>>       select SUPPORTS_CPU_MIPS32_R2
>>>       select SYS_MIPS_CACHE_INIT_RAM_LOAD
>>>   +config TARGET_AP121
>>> +    bool "Support ap121"
>>> +    select SUPPORTS_BIG_ENDIAN
>>> +    select SUPPORTS_CPU_MIPS32_R1
>>> +    select SUPPORTS_CPU_MIPS32_R2
>>> +    select SYS_MIPS_CACHE_INIT_RAM_LOAD
>>> +
>> please create a dedicated Kconfig in arch/mips/mach-ath79/ and add this
>> board there. Have a look at following links for examples:
>>
>> https://github.com/danielschwierzeck/u-boot-lantiq/blob/lantiq/upstream/arch/mips/mach-lantiq/Kconfig
>>
>>
>> http://patchwork.ozlabs.org/patch/558465/
>> http://patchwork.ozlabs.org/patch/558469/
> Ok.
>>>     endchoice
>>>   @@ -59,6 +66,7 @@ source "board/imgtec/malta/Kconfig"
>>>   source "board/micronas/vct/Kconfig"
>>>   source "board/pb1x00/Kconfig"
>>>   source "board/qemu-mips/Kconfig"
>>> +source "board/ath79/ap121/Kconfig"
>>>     if MIPS
>>>   diff --git a/arch/mips/dts/Makefile b/arch/mips/dts/Makefile
>>> index 47b6eb5..6f8b413 100644
>>> --- a/arch/mips/dts/Makefile
>>> +++ b/arch/mips/dts/Makefile
>>> @@ -2,7 +2,7 @@
>>>   # SPDX-License-Identifier:    GPL-2.0+
>>>   #
>>>   -dtb-y +=
>>> +dtb-$(CONFIG_TARGET_AP121) += ap121.dtb
>>>     targets += $(dtb-y)
>>>   diff --git a/arch/mips/dts/ap121.dts b/arch/mips/dts/ap121.dts
>>> new file mode 100644
>>> index 0000000..769458a
>>> --- /dev/null
>>> +++ b/arch/mips/dts/ap121.dts
>>> @@ -0,0 +1,37 @@
>>> +/dts-v1/;
>>> +#include "ar933x.dtsi"
>>> +
>>> +/ {
>>> +    model = "AP121 Reference Board";
>>> +    compatible = "ath79,ap121", "ath79,ar933x";
>>> +
>>> +    aliases {
>>> +        spi0 = &spi0;
>>> +        serial0 = &uart0;
>>> +    };
>>> +
>>> +    chosen {
>>> +        stdout-path = "serial0:115200n8";
>>> +    };
>>> +};
>>> +
>>> +&xtal {
>>> +    clock-frequency = <25000000>;
>>> +};
>>> +
>>> +&uart0 {
>>> +    status = "okay";
>>> +};
>>> +
>>> +&spi0 {
>>> +    spi-max-frequency = <25000000>;
>>> +    status = "okay";
>>> +    spi-flash at 0 {
>>> +        #address-cells = <1>;
>>> +        #size-cells = <1>;
>>> +        compatible = "spi-flash";
>>> +        memory-map = <0x9f000000 0x00800000>;
>>> +        spi-max-frequency = <25000000>;
>>> +        reg = <0>;
>>> +    };
>>> +};
>>> diff --git a/arch/mips/dts/ar933x.dtsi b/arch/mips/dts/ar933x.dtsi
>>> new file mode 100644
>>> index 0000000..64b30f7
>>> --- /dev/null
>>> +++ b/arch/mips/dts/ar933x.dtsi
>>> @@ -0,0 +1,64 @@
>>> +#include "skeleton.dtsi"
>>> +
>>> +/ {
>>> +    compatible = "ath79,ar933x";
>> the first part should be a vendor name and according to device-trees
>> from kernel this should be "qca"
> Ok.
>>> +
>>> +    #address-cells = <1>;
>>> +    #size-cells = <1>;
>>> +
>>> +    cpus {
>>> +        #address-cells = <1>;
>>> +        #size-cells = <0>;
>>> +
>>> +        cpu at 0 {
>>> +            device_type = "cpu";
>>> +            compatible = "mips,mips24Kc";
>>> +            reg = <0>;
>>> +        };
>>> +    };
>>> +
>>> +    clocks {
>>> +        #address-cells = <1>;
>>> +        #size-cells = <1>;
>>> +        ranges;
>>> +
>>> +        xtal: xtal {
>>> +            #clock-cells = <0>;
>>> +            compatible = "fixed-clock";
>>> +            clock-output-names = "xtal";
>>> +        };
>>> +    };
>>> +
>>> +    ahb {
>>> +        compatible = "simple-bus";
>>> +        ranges;
>>> +
>>> +        #address-cells = <1>;
>>> +        #size-cells = <1>;
>>> +
>>> +        apb {
>>> +            compatible = "simple-bus";
>>> +            ranges;
>>> +
>>> +            #address-cells = <1>;
>>> +            #size-cells = <1>;
>>> +
>>> +            uart0: uart at 18020000 {
>>> +                compatible = "ath79,ar933x-uart";
>> I suggest to use "qca,ar9330-uart" like the kernel driver
>>
> Ok.
>>> +                reg = <0x18020000 0x20>;
>>> +
>>> +                status = "disabled";
>>> +            };
>>> +        };
>>> +
>>> +        spi0: spi at 1f000000 {
>>> +            compatible = "ath79,ath79-spi";
>> I suggest to use "qca,ar7100-spi" like the kernel driver
> Ok.
>>> +            reg = <0x1f000000 0x10>;
>>> +
>>> +            status = "disabled";
>>> +
>>> +            #address-cells = <1>;
>>> +            #size-cells = <0>;
>>> +        };
>>> +    };
>>> +};
>>> diff --git a/board/ath79/ap121/Kconfig b/board/ath79/ap121/Kconfig
>>> new file mode 100644
>>> index 0000000..88d9eff
>>> --- /dev/null
>>> +++ b/board/ath79/ap121/Kconfig
>>> @@ -0,0 +1,15 @@
>>> +if TARGET_AP121
>>> +
>>> +config SYS_BOARD
>>> +    default "ap121"
>>> +
>>> +config SYS_VENDOR
>>> +    default "ath79"
>>> +
>>> +config SYS_SOC
>>> +    default "ath79"
>>> +
>>> +config SYS_CONFIG_NAME
>>> +    default "ap121"
>>> +
>>> +endif
>>> diff --git a/board/ath79/ap121/MAINTAINERS
>>> b/board/ath79/ap121/MAINTAINERS
>>> new file mode 100644
>>> index 0000000..319b521
>>> --- /dev/null
>>> +++ b/board/ath79/ap121/MAINTAINERS
>>> @@ -0,0 +1,6 @@
>>> +AP121 BOARD
>>> +M:    Wills Wang <wills.wang@live.com>
>>> +S:    Maintained
>>> +F:    board/ath79/ap121/
>>> +F:    include/configs/ap121.h
>>> +F:    configs/ap121_defconfig
>>> diff --git a/board/ath79/ap121/Makefile b/board/ath79/ap121/Makefile
>>> new file mode 100644
>>> index 0000000..9132118
>>> --- /dev/null
>>> +++ b/board/ath79/ap121/Makefile
>>> @@ -0,0 +1,8 @@
>>> +#
>>> +# (C) Copyright 2003-2006
>>> +# Wolfgang Denk, DENX Software Engineering, wd at denx.de.
>> again, no historic copyright needed for a simple one-line Makefile
> Ok.
>>> +#
>>> +# SPDX-License-Identifier:    GPL-2.0+
>>> +#
>>> +
>>> +obj-y    = ap121.o
>>> diff --git a/board/ath79/ap121/README b/board/ath79/ap121/README
>>> new file mode 100644
>>> index 0000000..104850f
>>> --- /dev/null
>>> +++ b/board/ath79/ap121/README
>>> @@ -0,0 +1,18 @@
>>> +ATHEROS AP121
>>> +==================
>>> +
>>> +Supported hardware: AP121 referance board.
>>> +
>>> +Files of the AP121 port
>>> +--------------------------
>>> +
>>> +arch/mips/mach-ath79/ar933x/    - The CPU support code for the
>>> Atheros ar933x
>>> +arch/mips/include/asm/arch-ath79    - Header files for the Atheros
>>> ath79
>>> +board/ath79/ap121/    - AP121 board specific files
>>> +include/configs/ap121.h    - AP121 configuration file
>>> +
>>> +Configure
>>> +-------------------
>>> +
>>> +To configure for the current board
>>> +    make ap121_defconfig
>> you can drop this README. There is no new or relevant information in it
>>
> Ok.
>>> diff --git a/board/ath79/ap121/ap121.c b/board/ath79/ap121/ap121.c
>>> new file mode 100644
>>> index 0000000..f60f88b
>>> --- /dev/null
>>> +++ b/board/ath79/ap121/ap121.c
>>> @@ -0,0 +1,17 @@
>>> +/*
>>> + * (C) Copyright 2015
>>> + * Wills Wang, <wills.wang@live.com>
>>> + *
>>> + * SPDX-License-Identifier:    GPL-2.0+
>>> + */
>>> +
>>> +#include <common.h>
>>> +#include <command.h>
>>> +#include <asm/mipsregs.h>
>>> +#include <asm/addrspace.h>
>>> +#include <asm/io.h>
>>> +
>>> +int checkboard(void)
>>> +{
>>> +    return 0;
>>> +}
>> you could/should print your board name here
> U-boot print the board model property from device tree when power up,
> I think it's duplicated.

yes, you are right. But checkboard is already implemented in
common/board_info.c as empty and weak function. Thus you can drop your
implementation.

>>> diff --git a/board/ath79/ap121/config.mk b/board/ath79/ap121/config.mk
>>> new file mode 100644
>>> index 0000000..f7dd3b7
>>> --- /dev/null
>>> +++ b/board/ath79/ap121/config.mk
>>> @@ -0,0 +1,16 @@
>>> +#
>>> +# (C) Copyright 2003
>>> +# Wolfgang Denk, DENX Software Engineering, wd at denx.de.
>>> +#
>>> +# SPDX-License-Identifier:    GPL-2.0+
>>> +#
>>> +
>>> +#
>>> +# AP121 referance board, MIPS32 core
>>> +#
>>> +
>>> +# ROM version
>>> +CONFIG_SYS_TEXT_BASE = 0x9f000000
>>> +
>>> +# RAM version
>>> +#CONFIG_SYS_TEXT_BASE = 0x80010000
>> config.mk files in board directory are also deprecated. Please add
>> "#define CONFIG_SYS_TEXT_BASE 0x9f000000" to include/configs/ap121.h
> Ok.
>>> diff --git a/configs/ap121_defconfig b/configs/ap121_defconfig
>>> new file mode 100644
>>> index 0000000..cec0bb7
>>> --- /dev/null
>>> +++ b/configs/ap121_defconfig
>>> @@ -0,0 +1,42 @@
>>> +CONFIG_MIPS=y
>>> +CONFIG_TARGET_AP121=y
>>> +CONFIG_SYS_MALLOC_F_LEN=0x2000
>>> +CONFIG_SYS_PROMPT="ap121 # "
>>> +CONFIG_OF_CONTROL=y
>>> +CONFIG_DEFAULT_DEVICE_TREE="ap121"
>>> +CONFIG_DM=y
>> options like CONFIG_OF_CONTROL and CONFIG_DM should be pre-selected by
>> the mach or SoC specific Kconfig file if you always require it. An user
>> of your board should not be able to disable those options.
>>
> Ok.
>>> +CONFIG_DM_SERIAL=y
>>> +CONFIG_DM_SPI=y
>>> +CONFIG_DM_SPI_FLASH=y
>>> +CONFIG_ATH79_SPI=y
>>> +CONFIG_SPI_FLASH=y
>>> +CONFIG_SPI_FLASH_BAR=y
>>> +CONFIG_SPI_FLASH_ATMEL=y
>>> +CONFIG_SPI_FLASH_EON=y
>>> +CONFIG_SPI_FLASH_GIGADEVICE=y
>>> +CONFIG_SPI_FLASH_MACRONIX=y
>>> +CONFIG_SPI_FLASH_SPANSION=y
>>> +CONFIG_SPI_FLASH_STMICRO=y
>>> +CONFIG_SPI_FLASH_SST=y
>>> +CONFIG_SPI_FLASH_WINBOND=y
>>> +CONFIG_SPI_FLASH_USE_4K_SECTORS=y
>>> +CONFIG_SPI_FLASH_DATAFLASH=y
>>> +CONFIG_SPI_FLASH_MTD=y
>>> +CONFIG_CMD_DM=y
>>> +CONFIG_CMD_SF=y
>>> +CONFIG_CMD_SPI=y
>>> +# CONFIG_NET is not set
>>> +# CONFIG_CMD_BDI is not set
>>> +# CONFIG_CMD_CONSOLE is not set
>>> +# CONFIG_CMD_IMLS is not set
>>> +# CONFIG_CMD_XIMG is not set
>>> +# CONFIG_CMD_ELF is not set
>>> +# CONFIG_CMD_EXPORTENV is not set
>>> +# CONFIG_CMD_IMPORTENV is not set
>>> +# CONFIG_CMD_EDITENV is not set
>>> +# CONFIG_CMD_CRC32 is not set
>>> +# CONFIG_CMD_FLASH is not set
>>> +# CONFIG_CMD_FPGA is not set
>>> +# CONFIG_CMD_NFS is not set
>>> +# CONFIG_CMD_NET is not set
>>> +CONFIG_USE_PRIVATE_LIBGCC=y
>>> diff --git a/include/configs/ap121.h b/include/configs/ap121.h
>>> new file mode 100644
>>> index 0000000..5a01d11
>>> --- /dev/null
>>> +++ b/include/configs/ap121.h
>>> @@ -0,0 +1,82 @@
>>> +#ifndef __CONFIG_H
>>> +#define __CONFIG_H
>>> +
>>> +#include <linux/kconfig.h>
>>> +#include <linux/sizes.h>
>> those includes are not needed in a board config header file respectively
>> they are already included implicitely
> Ok.
>>> +
>>> +#define CONFIG_ARCH_ATH79
>>> +#define CONFIG_SOC_AR933X
>> this is already configured by Kconfig
>>
> Ok.
>>> +
>>> +#define CONFIG_DISPLAY_CPUINFO
>>> +#define CONFIG_DISPLAY_BOARDINFO
>>> +
>>> +#define CONFIG_OF_LIBFDT
>>> +
>>> +#define CONFIG_SYS_HZ                   1000
>>> +#define CONFIG_SYS_MHZ                  200
>>> +#define CONFIG_SYS_MIPS_TIMER_FREQ      (CONFIG_SYS_MHZ * 1000000)
>>> +
>>> +/* Cache Configuration */
>>> +#define CONFIG_SYS_DCACHE_SIZE          32 * SZ_1K
>>> +#define CONFIG_SYS_ICACHE_SIZE          64 * SZ_1K
>>> +#define CONFIG_SYS_CACHELINE_SIZE       32
>> you can drop this, the cache sizes will be detected automatically
> I  have a try later,  i will drop this if it work fine.
>>> +
>>> +#define CONFIG_SYS_MONITOR_BASE         CONFIG_SYS_TEXT_BASE
>>> +
>>> +#define CONFIG_SYS_MALLOC_LEN           ROUND(0x30000 + 128 * SZ_1K,
>>> 0x1000)
>> no need for a magic calculation, please choose a fixed value
> Ok.
>>> +
>>> +#define CONFIG_SYS_BOOTPARAMS_LEN       128 * SZ_1K
>>> +
>>> +#define CONFIG_SYS_SDRAM_BASE           0x80000000
>>> +#define CONFIG_SYS_LOAD_ADDR            0x81000000
>>> +
>>> +#define CONFIG_SYS_INIT_SP_OFFSET       0x20000
>>> +#define CONFIG_SYS_NO_FLASH
>>> +
>>> +#define CONFIG_AR933X_SERIAL
>> this is already configured by Kconfig
> Ok.
>>> +#define CONFIG_BAUDRATE                 115200
>>> +#define CONFIG_SYS_BAUDRATE_TABLE       {9600, 19200, 38400, 57600,
>>> 115200}
>>> +
>>> +#define CONFIG_BOOTDELAY                3
>>> +#define CONFIG_BOOTARGS                 "console=ttyS0,115200 " \
>>> +                    "root=/dev/mtdblock2 " \
>>> +                    "rootfstype=squashfs"
>>> +#define CONFIG_BOOTCOMMAND              "sf probe;" \
>>> +                    "mtdparts default;" \
>>> +                    "bootm 0x9f300000"
>>> +#define CONFIG_LZMA
>>> +
>>> +#define MTDIDS_DEFAULT                  "nor0=spi-flash.0"
>>> +#define MTDPARTS_DEFAULT               
>>> "mtdparts=spi-flash.0:256k(u-boot)," \
>>> +       
>>> "64k(u-boot-env),2752k(rootfs),896k(uImage),64k(NVRAM),64k(ART)"
>>> +
>>> +#define CONFIG_ENV_SPI_MAX_HZ           25000000
>>> +#define CONFIG_ENV_IS_IN_SPI_FLASH
>>> +#define CONFIG_ENV_OFFSET               (256 * SZ_1K)
>>> +#define CONFIG_ENV_SECT_SIZE            (64 * SZ_1K)
>>> +#define CONFIG_ENV_SIZE                 (64 * SZ_1K)
>>> +
>>> +/*
>>> + * Command
>>> + */
>>> +#define CONFIG_CMD_MTDPARTS
>>> +
>>> +/* Miscellaneous configurable options */
>>> +#define CONFIG_SYS_CBSIZE               256
>>> +#define CONFIG_SYS_MAXARGS              16
>>> +#define CONFIG_SYS_PBSIZE               (CONFIG_SYS_CBSIZE + \
>>> +                    sizeof(CONFIG_SYS_PROMPT) + 16)
>>> +#define CONFIG_SYS_LONGHELP
>>> +#define CONFIG_CMDLINE_EDITING
>>> +#define CONFIG_AUTO_COMPLETE
>>> +#define CONFIG_SYS_HUSH_PARSER
>>> +#define CONFIG_SYS_PROMPT_HUSH_PS2      "> "
>> this is already configured by Kconfig
> Ok.
>>> +
>>> +/*
>>> + * Diagnostics
>>> + */
>>> +#define CONFIG_SYS_MEMTEST_START        0x80100000
>>> +#define CONFIG_SYS_MEMTEST_END          0x83f00000
>>> +#define CONFIG_CMD_MEMTEST
>>> +
>>> +#endif  /* __CONFIG_H */
>>>
> 

-- 
- Daniel

^ permalink raw reply	[flat|nested] 39+ messages in thread

* [U-Boot] [PATCH v4 4/8] mips: ath79: add serial driver for ar933x SOC
  2015-12-26 16:54     ` Wills Wang
@ 2015-12-26 17:19       ` Daniel Schwierzeck
  0 siblings, 0 replies; 39+ messages in thread
From: Daniel Schwierzeck @ 2015-12-26 17:19 UTC (permalink / raw)
  To: u-boot



Am 26.12.2015 um 17:54 schrieb Wills Wang:
> 
> 
> On 12/26/2015 09:20 PM, Daniel Schwierzeck wrote:
>>
>> Am 25.12.2015 um 19:56 schrieb Wills Wang:
>>> Signed-off-by: Wills Wang <wills.wang@live.com>
>>> ---
>>>
>>> Changes in v4: None
>>> Changes in v3: None
>>> Changes in v2: None
>>>
>>>   drivers/serial/Makefile        |   1 +
>>>   drivers/serial/serial_ar933x.c | 225
>>> +++++++++++++++++++++++++++++++++++++++++
>>>   2 files changed, 226 insertions(+)
>>>   create mode 100644 drivers/serial/serial_ar933x.c
>>>
>>> diff --git a/drivers/serial/Makefile b/drivers/serial/Makefile
>>> index dd87147..9a7ad89 100644
>>> --- a/drivers/serial/Makefile
>>> +++ b/drivers/serial/Makefile
>>> @@ -17,6 +17,7 @@ endif
>>>     obj-$(CONFIG_ALTERA_UART) += altera_uart.o
>>>   obj-$(CONFIG_ALTERA_JTAG_UART) += altera_jtag_uart.o
>>> +obj-$(CONFIG_AR933X_SERIAL) += serial_ar933x.o
>>>   obj-$(CONFIG_ARM_DCC) += arm_dcc.o
>>>   obj-$(CONFIG_ATMEL_USART) += atmel_usart.o
>>>   obj-$(CONFIG_EFI_APP) += serial_efi.o
>>> diff --git a/drivers/serial/serial_ar933x.c
>>> b/drivers/serial/serial_ar933x.c
>>> new file mode 100644
>>> index 0000000..efca93c
>>> --- /dev/null
>>> +++ b/drivers/serial/serial_ar933x.c
>>> @@ -0,0 +1,225 @@
>>> +/*
>>> + * (C) Copyright 2015
>>> + * Wills Wang, <wills.wang@live.com>
>>> + *
>>> + * SPDX-License-Identifier: GPL-2.0+
>>> + */
>>> +
>>> +#include <common.h>
>>> +#include <dm.h>
>>> +#include <errno.h>
>>> +#include <serial.h>
>>> +#include <asm/io.h>
>>> +#include <asm/addrspace.h>
>>> +#include <asm/div64.h>
>> use the existing and generic implementation in include/div64.h
> Ok.
>>> +#include <asm/types.h>
>>> +#include <asm/arch/ar71xx_regs.h>
>> #include <mach/ar71xx_regs.h>
>>
>> I wonder how you can stil compile your code
> U-boot create symbolic links from arch/mips/mach-ath79/include/mach
> to arch/mips/include/asm/arch.

but it should not. Only if you enable CREATE_ARCH_SYMLINK. Maybe this is
some magic for backward compatibility. Anyway the long-term goal is to
remove the creation of symbolic links and to use "#include <mach/file.h>".

>>
>>
>>> +
>>> +DECLARE_GLOBAL_DATA_PTR;
>>> +
>>> +#define AR933X_UART_DATA_REG            0x00
>>> +#define AR933X_UART_CS_REG              0x04
>>> +#define AR933X_UART_CLK_REG             0x08
>>> +
>>> +#define AR933X_UART_DATA_TX_RX_MASK     0xff
>>> +#define AR933X_UART_DATA_RX_CSR         BIT(8)
>>> +#define AR933X_UART_DATA_TX_CSR         BIT(9)
>>> +#define AR933X_UART_CS_IF_MODE_S        2
>>> +#define AR933X_UART_CS_IF_MODE_M        0x3
>>> +#define AR933X_UART_CS_IF_MODE_DTE      1
>>> +#define AR933X_UART_CS_IF_MODE_DCE      2
>>> +#define AR933X_UART_CS_TX_RDY_ORIDE     BIT(7)
>>> +#define AR933X_UART_CS_RX_RDY_ORIDE     BIT(8)
>>> +#define AR933X_UART_CLK_STEP_M          0xffff
>>> +#define AR933X_UART_CLK_SCALE_M         0xfff
>>> +#define AR933X_UART_CLK_SCALE_S         16
>>> +#define AR933X_UART_CLK_STEP_S          0
>>> +
>>> +struct ar933x_serial_platdata {
>>> +    void __iomem *regs;
>>> +};
>> if you always support device-tree, you do not need platform data
> Ok.
>>> +
>>> +struct ar933x_serial_priv {
>>> +    void __iomem *regs;
>>> +};
>>> +
>>> +static inline u32 ar933x_serial_read(struct udevice *dev, u32 offset)
>>> +{
>>> +    struct ar933x_serial_priv *priv = dev_get_priv(dev);
>>> +    return readl(priv->regs + offset);
>>> +}
>>> +
>>> +static inline void ar933x_serial_write(struct udevice *dev,
>>> +                    u32 val, u32 offset)
>>> +{
>>> +    struct ar933x_serial_priv *priv = dev_get_priv(dev);
>>> +    writel(val, priv->regs + offset);
>>> +}
>>> +
>>> +/*
>>> + * baudrate = (clk / (scale + 1)) * (step * (1 / 2^17))
>>> + */
>>> +static u32 ar933x_serial_get_baud(u32 clk, u32 scale, u32 step)
>>> +{
>>> +    u64 t;
>>> +    u32 div;
>>> +
>>> +    div = (2 << 16) * (scale + 1);
>>> +    t = clk;
>>> +    t *= step;
>>> +    t += (div / 2);
>>> +    do_div(t, div);
>>> +
>>> +    return t;
>>> +}
>>> +
>>> +static void ar933x_serial_get_scale_step(u32 clk, u32 baud,
>>> +                       u32 *scale, u32 *step)
>>> +{
>>> +    u32 tscale, baudrate;
>>> +    long min_diff;
>>> +
>>> +    *scale = 0;
>>> +    *step = 0;
>>> +
>>> +    min_diff = baud;
>>> +    for (tscale = 0; tscale < AR933X_UART_CLK_SCALE_M; tscale++) {
>>> +        u64 tstep;
>>> +        int diff;
>>> +
>>> +        tstep = baud * (tscale + 1);
>>> +        tstep *= (2 << 16);
>>> +        do_div(tstep, clk);
>>> +
>>> +        if (tstep > AR933X_UART_CLK_STEP_M)
>>> +            break;
>>> +
>>> +        baudrate = ar933x_serial_get_baud(clk, tscale, tstep);
>>> +        diff = abs(baudrate - baud);
>>> +        if (diff < min_diff) {
>>> +            min_diff = diff;
>>> +            *scale = tscale;
>>> +            *step = tstep;
>>> +        }
>>> +    }
>>> +}
>>> +
>>> +static int ar933x_serial_setbrg(struct udevice *dev, int baudrate)
>>> +{
>>> +    u32 val, scale, step;
>>> +
>>> +    val = get_serial_clock();
>>> +    ar933x_serial_get_scale_step(val, baudrate, &scale, &step);
>>> +
>>> +    val  = (scale & AR933X_UART_CLK_SCALE_M)
>>> +            << AR933X_UART_CLK_SCALE_S;
>>> +    val |= (step & AR933X_UART_CLK_STEP_M)
>>> +            << AR933X_UART_CLK_STEP_S;
>>> +    ar933x_serial_write(dev, val, AR933X_UART_CLK_REG);
>>> +
>>> +    return 0;
>>> +}
>>> +
>>> +static int ar933x_serial_putc(struct udevice *dev, const char c)
>>> +{
>>> +    u32 data;
>>> +
>>> +    if (c == '\n')
>>> +        ar933x_serial_putc(dev, '\r');
>> remove this, the serial core driver takes care of it
> Ok.
>>> +
>>> +    do {
>>> +        data = ar933x_serial_read(dev, AR933X_UART_DATA_REG);
>>> +    } while (!(data & AR933X_UART_DATA_TX_CSR));
>> remove this, the serial core driver takes care of it via your pending
>> callback (ar933x_serial_pending)
> Ok.
>>> +
>>> +    data  = (u32)c | AR933X_UART_DATA_TX_CSR;
>>> +    ar933x_serial_write(dev, data, AR933X_UART_DATA_REG);
>>> +
>>> +    return 0;
>>> +}
>>> +
>>> +static int ar933x_serial_getc(struct udevice *dev)
>>> +{
>>> +    u32 data;
>>> +
>>> +    do {
>>> +        data = ar933x_serial_read(dev, AR933X_UART_DATA_REG);
>>> +    } while (!(data & AR933X_UART_DATA_RX_CSR));
>> dito
> Ok.
>>> +
>>> +    data = ar933x_serial_read(dev, AR933X_UART_DATA_REG);
>>> +    ar933x_serial_write(dev, AR933X_UART_DATA_RX_CSR,
>>> +                AR933X_UART_DATA_REG);
>>> +    return data & AR933X_UART_DATA_TX_RX_MASK;
>>> +}
>>> +
>>> +static int ar933x_serial_pending(struct udevice *dev, bool input)
>>> +{
>>> +    u32 data;
>>> +
>>> +    data = ar933x_serial_read(dev, AR933X_UART_DATA_REG);
>>> +    if (input)
>>> +        return (data & AR933X_UART_DATA_RX_CSR) ? 1 : 0;
>>> +    else
>>> +        return (data & AR933X_UART_DATA_TX_CSR) ? 0 : 1;
>>> +}
>>> +
>>> +static int ar933x_serial_probe(struct udevice *dev)
>>> +{
>>> +    struct ar933x_serial_priv *priv = dev_get_priv(dev);
>>> +    struct ar933x_serial_platdata *plat = dev_get_platdata(dev);
>>> +    u32 val;
>>> +
>>> +    priv->regs = plat->regs;
>>> +
>>> +    /*
>>> +     * UART controller configuration:
>>> +     * - no DMA
>>> +     * - no interrupt
>>> +     * - DCE mode
>>> +     * - no flow control
>>> +     * - set RX ready oride
>>> +     * - set TX ready oride
>>> +     */
>>> +    val = (AR933X_UART_CS_IF_MODE_DCE << AR933X_UART_CS_IF_MODE_S) |
>>> +          AR933X_UART_CS_TX_RDY_ORIDE | AR933X_UART_CS_RX_RDY_ORIDE;
>>> +    ar933x_serial_write(dev, val, AR933X_UART_CS_REG);
>>> +    return 0;
>>> +}
>>> +
>>> +static int ar933x_serial_ofdata_to_platdata(struct udevice *dev)
>>> +{
>>> +    struct ar933x_serial_platdata *plat = dev_get_platdata(dev);
>>> +    fdt_addr_t addr;
>>> +
>>> +    addr = dev_get_addr(dev);
>>> +    if (addr == FDT_ADDR_T_NONE)
>>> +        return -EINVAL;
>>> +
>>> +    plat->regs = map_physmem(addr,
>>> +                 AR933X_UART_SIZE,
>>> +                 MAP_NOCACHE);
>> move this code to function ar933x_serial_probe and drop this function
> Ok.
>>> +    return 0;
>>> +}
>>> +
>>> +static const struct dm_serial_ops ar933x_serial_ops = {
>>> +    .putc = ar933x_serial_putc,
>>> +    .pending = ar933x_serial_pending,
>>> +    .getc = ar933x_serial_getc,
>>> +    .setbrg = ar933x_serial_setbrg,
>>> +};
>>> +
>>> +static const struct udevice_id ar933x_serial_ids[] = {
>>> +    { .compatible = "ath79,ar933x-uart" },
>>> +    { }
>>> +};
>>> +
>>> +U_BOOT_DRIVER(serial_ar933x) = {
>>> +    .name   = "serial_ar933x",
>>> +    .id = UCLASS_SERIAL,
>>> +    .of_match = ar933x_serial_ids,
>>> +    .ofdata_to_platdata = ar933x_serial_ofdata_to_platdata,
>>> +    .platdata_auto_alloc_size = sizeof(struct ar933x_serial_platdata),
>> drop the two lines, you do not need to allocate platdata
>>
> Ok.
>>> +    .priv_auto_alloc_size = sizeof(struct ar933x_serial_priv),
>>> +    .probe = ar933x_serial_probe,
>>> +    .ops    = &ar933x_serial_ops,
>>> +    .flags = DM_FLAG_PRE_RELOC,
>>> +};
>>>
> 

-- 
- Daniel

^ permalink raw reply	[flat|nested] 39+ messages in thread

* [U-Boot] [PATCH v4 8/8] mips: move optimize tuning option from deprecated config.mk to Kconfig
  2015-12-26  7:30   ` Marek Vasut
@ 2015-12-26 17:33     ` Wills Wang
  0 siblings, 0 replies; 39+ messages in thread
From: Wills Wang @ 2015-12-26 17:33 UTC (permalink / raw)
  To: u-boot


Sorry, i use patman tool incorrectly.

On 12/26/2015 03:30 PM, Marek Vasut wrote:
> On Friday, December 25, 2015 at 07:56:28 PM, Wills Wang wrote:
>> config.mk files in mach-xxx directory are deprecated, this patch move
>> the processor tuning option of compiler into Kconfig
>>
>> Signed-off-by: Wills Wang <wills.wang@live.com>
>> ---
>>
>> Changes in v4:
>> - Add div64 macro for MIPS
>> - Convert physical address to uncached and cached(KSEG0/1) memory range
>>    in map_physmem
>> - Auto calculate baudrate for serial driver
>> - Move pinctrl code in serial driver into arch/mips/mach-ath79
>> - Use global_data to save CPU/DDR/AHB clock
>> - Use get_serial_clock to serial clock source
>> - Use get_bus_freq instead of hardcode in SPI driver
>> - Use arch_global_data to save SOC's type, revison and id
>> - move CPU optimize tuning flag from config.mk to Kconfig
> The changelog should be at patch 0/8 and there should be a dedicated changelog
> with each patch. The changelog for entire series should not be with patch 8/8.
>
> Best regards,
> Marek Vasut
>
>

^ permalink raw reply	[flat|nested] 39+ messages in thread

* [U-Boot] [PATCH v4 7/8] mips: support optimize tuning for same common processor cores
  2015-12-25 18:56 ` [U-Boot] [PATCH v4 7/8] mips: support optimize tuning for same common processor cores Wills Wang
  2015-12-26  7:30   ` Marek Vasut
@ 2015-12-26 18:58   ` Daniel Schwierzeck
  2015-12-27  3:03     ` Wills Wang
  1 sibling, 1 reply; 39+ messages in thread
From: Daniel Schwierzeck @ 2015-12-26 18:58 UTC (permalink / raw)
  To: u-boot



Am 25.12.2015 um 19:56 schrieb Wills Wang:
> Signed-off-by: Wills Wang <wills.wang@live.com>
> ---
> 
> Changes in v4: None
> Changes in v3: None
> Changes in v2: None

I would prefer it like this [1] so you can drop patches 07/08 and 08/08.

[1] http://patchwork.ozlabs.org/patch/561113/

> 
>  arch/mips/Makefile | 7 +++++++
>  1 file changed, 7 insertions(+)
> 
> diff --git a/arch/mips/Makefile b/arch/mips/Makefile
> index da5fa72..0be5e64 100644
> --- a/arch/mips/Makefile
> +++ b/arch/mips/Makefile
> @@ -2,6 +2,13 @@
>  # SPDX-License-Identifier:	GPL-2.0+
>  #
>  
> +tune-$(CONFIG_OPTIMIZE_CPU_MIPS_4KC)	=-mtune=4kc
> +tune-$(CONFIG_OPTIMIZE_CPU_MIPS_24KC)	=-mtune=24kc
> +
> +tune-y := $(tune-y)
> +
> +PLATFORM_CPPFLAGS += $(tune-y)
> +
>  head-y := arch/mips/cpu/start.o
>  
>  libs-y += arch/mips/cpu/
> 

-- 
- Daniel

^ permalink raw reply	[flat|nested] 39+ messages in thread

* [U-Boot] [PATCH v4 7/8] mips: support optimize tuning for same common processor cores
  2015-12-26 18:58   ` Daniel Schwierzeck
@ 2015-12-27  3:03     ` Wills Wang
  0 siblings, 0 replies; 39+ messages in thread
From: Wills Wang @ 2015-12-27  3:03 UTC (permalink / raw)
  To: u-boot



On 12/27/2015 02:58 AM, Daniel Schwierzeck wrote:
>
> Am 25.12.2015 um 19:56 schrieb Wills Wang:
>> Signed-off-by: Wills Wang <wills.wang@live.com>
>> ---
>>
>> Changes in v4: None
>> Changes in v3: None
>> Changes in v2: None
> I would prefer it like this [1] so you can drop patches 07/08 and 08/08.
>
> [1] http://patchwork.ozlabs.org/patch/561113/
Ok.
>>   arch/mips/Makefile | 7 +++++++
>>   1 file changed, 7 insertions(+)
>>
>> diff --git a/arch/mips/Makefile b/arch/mips/Makefile
>> index da5fa72..0be5e64 100644
>> --- a/arch/mips/Makefile
>> +++ b/arch/mips/Makefile
>> @@ -2,6 +2,13 @@
>>   # SPDX-License-Identifier:	GPL-2.0+
>>   #
>>   
>> +tune-$(CONFIG_OPTIMIZE_CPU_MIPS_4KC)	=-mtune=4kc
>> +tune-$(CONFIG_OPTIMIZE_CPU_MIPS_24KC)	=-mtune=24kc
>> +
>> +tune-y := $(tune-y)
>> +
>> +PLATFORM_CPPFLAGS += $(tune-y)
>> +
>>   head-y := arch/mips/cpu/start.o
>>   
>>   libs-y += arch/mips/cpu/
>>

^ permalink raw reply	[flat|nested] 39+ messages in thread

* [U-Boot] [PATCH v4 4/8] mips: ath79: add serial driver for ar933x SOC
  2015-12-26 13:20   ` Daniel Schwierzeck
  2015-12-26 16:54     ` Wills Wang
@ 2015-12-27  6:28     ` Wills Wang
  2015-12-27  8:21       ` Thomas Chou
  2015-12-27  8:31     ` Thomas Chou
  2 siblings, 1 reply; 39+ messages in thread
From: Wills Wang @ 2015-12-27  6:28 UTC (permalink / raw)
  To: u-boot



On 12/26/2015 09:20 PM, Daniel Schwierzeck wrote:
>
> Am 25.12.2015 um 19:56 schrieb Wills Wang:
>> Signed-off-by: Wills Wang <wills.wang@live.com>
>> ---
>>
>> Changes in v4: None
>> Changes in v3: None
>> Changes in v2: None
>>
>>   drivers/serial/Makefile        |   1 +
>>   drivers/serial/serial_ar933x.c | 225 +++++++++++++++++++++++++++++++++++++++++
>>   2 files changed, 226 insertions(+)
>>   create mode 100644 drivers/serial/serial_ar933x.c
>>
>> diff --git a/drivers/serial/Makefile b/drivers/serial/Makefile
>> index dd87147..9a7ad89 100644
>> --- a/drivers/serial/Makefile
>> +++ b/drivers/serial/Makefile
>> @@ -17,6 +17,7 @@ endif
>>   
>>   obj-$(CONFIG_ALTERA_UART) += altera_uart.o
>>   obj-$(CONFIG_ALTERA_JTAG_UART) += altera_jtag_uart.o
>> +obj-$(CONFIG_AR933X_SERIAL) += serial_ar933x.o
>>   obj-$(CONFIG_ARM_DCC) += arm_dcc.o
>>   obj-$(CONFIG_ATMEL_USART) += atmel_usart.o
>>   obj-$(CONFIG_EFI_APP) += serial_efi.o
>> diff --git a/drivers/serial/serial_ar933x.c b/drivers/serial/serial_ar933x.c
>> new file mode 100644
>> index 0000000..efca93c
>> --- /dev/null
>> +++ b/drivers/serial/serial_ar933x.c
>> @@ -0,0 +1,225 @@
>> +/*
>> + * (C) Copyright 2015
>> + * Wills Wang, <wills.wang@live.com>
>> + *
>> + * SPDX-License-Identifier: GPL-2.0+
>> + */
>> +
>> +#include <common.h>
>> +#include <dm.h>
>> +#include <errno.h>
>> +#include <serial.h>
>> +#include <asm/io.h>
>> +#include <asm/addrspace.h>
>> +#include <asm/div64.h>
> use the existing and generic implementation in include/div64.h
>
>> +#include <asm/types.h>
>> +#include <asm/arch/ar71xx_regs.h>
> #include <mach/ar71xx_regs.h>
>
> I wonder how you can stil compile your code
>
>
>> +
>> +DECLARE_GLOBAL_DATA_PTR;
>> +
>> +#define AR933X_UART_DATA_REG            0x00
>> +#define AR933X_UART_CS_REG              0x04
>> +#define AR933X_UART_CLK_REG             0x08
>> +
>> +#define AR933X_UART_DATA_TX_RX_MASK     0xff
>> +#define AR933X_UART_DATA_RX_CSR         BIT(8)
>> +#define AR933X_UART_DATA_TX_CSR         BIT(9)
>> +#define AR933X_UART_CS_IF_MODE_S        2
>> +#define AR933X_UART_CS_IF_MODE_M        0x3
>> +#define AR933X_UART_CS_IF_MODE_DTE      1
>> +#define AR933X_UART_CS_IF_MODE_DCE      2
>> +#define AR933X_UART_CS_TX_RDY_ORIDE     BIT(7)
>> +#define AR933X_UART_CS_RX_RDY_ORIDE     BIT(8)
>> +#define AR933X_UART_CLK_STEP_M          0xffff
>> +#define AR933X_UART_CLK_SCALE_M         0xfff
>> +#define AR933X_UART_CLK_SCALE_S         16
>> +#define AR933X_UART_CLK_STEP_S          0
>> +
>> +struct ar933x_serial_platdata {
>> +	void __iomem *regs;
>> +};
> if you always support device-tree, you do not need platform data
>
>> +
>> +struct ar933x_serial_priv {
>> +	void __iomem *regs;
>> +};
>> +
>> +static inline u32 ar933x_serial_read(struct udevice *dev, u32 offset)
>> +{
>> +	struct ar933x_serial_priv *priv = dev_get_priv(dev);
>> +	return readl(priv->regs + offset);
>> +}
>> +
>> +static inline void ar933x_serial_write(struct udevice *dev,
>> +					u32 val, u32 offset)
>> +{
>> +	struct ar933x_serial_priv *priv = dev_get_priv(dev);
>> +	writel(val, priv->regs + offset);
>> +}
>> +
>> +/*
>> + * baudrate = (clk / (scale + 1)) * (step * (1 / 2^17))
>> + */
>> +static u32 ar933x_serial_get_baud(u32 clk, u32 scale, u32 step)
>> +{
>> +	u64 t;
>> +	u32 div;
>> +
>> +	div = (2 << 16) * (scale + 1);
>> +	t = clk;
>> +	t *= step;
>> +	t += (div / 2);
>> +	do_div(t, div);
>> +
>> +	return t;
>> +}
>> +
>> +static void ar933x_serial_get_scale_step(u32 clk, u32 baud,
>> +				       u32 *scale, u32 *step)
>> +{
>> +	u32 tscale, baudrate;
>> +	long min_diff;
>> +
>> +	*scale = 0;
>> +	*step = 0;
>> +
>> +	min_diff = baud;
>> +	for (tscale = 0; tscale < AR933X_UART_CLK_SCALE_M; tscale++) {
>> +		u64 tstep;
>> +		int diff;
>> +
>> +		tstep = baud * (tscale + 1);
>> +		tstep *= (2 << 16);
>> +		do_div(tstep, clk);
>> +
>> +		if (tstep > AR933X_UART_CLK_STEP_M)
>> +			break;
>> +
>> +		baudrate = ar933x_serial_get_baud(clk, tscale, tstep);
>> +		diff = abs(baudrate - baud);
>> +		if (diff < min_diff) {
>> +			min_diff = diff;
>> +			*scale = tscale;
>> +			*step = tstep;
>> +		}
>> +	}
>> +}
>> +
>> +static int ar933x_serial_setbrg(struct udevice *dev, int baudrate)
>> +{
>> +	u32 val, scale, step;
>> +
>> +	val = get_serial_clock();
>> +	ar933x_serial_get_scale_step(val, baudrate, &scale, &step);
>> +
>> +	val  = (scale & AR933X_UART_CLK_SCALE_M)
>> +			<< AR933X_UART_CLK_SCALE_S;
>> +	val |= (step & AR933X_UART_CLK_STEP_M)
>> +			<< AR933X_UART_CLK_STEP_S;
>> +	ar933x_serial_write(dev, val, AR933X_UART_CLK_REG);
>> +
>> +	return 0;
>> +}
>> +
>> +static int ar933x_serial_putc(struct udevice *dev, const char c)
>> +{
>> +	u32 data;
>> +
>> +	if (c == '\n')
>> +		ar933x_serial_putc(dev, '\r');
> remove this, the serial core driver takes care of it
>
>> +
>> +	do {
>> +		data = ar933x_serial_read(dev, AR933X_UART_DATA_REG);
>> +	} while (!(data & AR933X_UART_DATA_TX_CSR));
> remove this, the serial core driver takes care of it via your pending
> callback (ar933x_serial_pending)
>

Serial core driver don't query and wait the pending function before
"serial_getc" and "serial_putc", so these statements can't remove,
or board don't work.
>> +
>> +	data  = (u32)c | AR933X_UART_DATA_TX_CSR;
>> +	ar933x_serial_write(dev, data, AR933X_UART_DATA_REG);
>> +
>> +	return 0;
>> +}
>> +
>> +static int ar933x_serial_getc(struct udevice *dev)
>> +{
>> +	u32 data;
>> +
>> +	do {
>> +		data = ar933x_serial_read(dev, AR933X_UART_DATA_REG);
>> +	} while (!(data & AR933X_UART_DATA_RX_CSR));
> dito
ditto
>
>> +
>> +	data = ar933x_serial_read(dev, AR933X_UART_DATA_REG);
>> +	ar933x_serial_write(dev, AR933X_UART_DATA_RX_CSR,
>> +			    AR933X_UART_DATA_REG);
>> +	return data & AR933X_UART_DATA_TX_RX_MASK;
>> +}
>> +
>> +static int ar933x_serial_pending(struct udevice *dev, bool input)
>> +{
>> +	u32 data;
>> +
>> +	data = ar933x_serial_read(dev, AR933X_UART_DATA_REG);
>> +	if (input)
>> +		return (data & AR933X_UART_DATA_RX_CSR) ? 1 : 0;
>> +	else
>> +		return (data & AR933X_UART_DATA_TX_CSR) ? 0 : 1;
>> +}
>> +
>> +static int ar933x_serial_probe(struct udevice *dev)
>> +{
>> +	struct ar933x_serial_priv *priv = dev_get_priv(dev);
>> +	struct ar933x_serial_platdata *plat = dev_get_platdata(dev);
>> +	u32 val;
>> +
>> +	priv->regs = plat->regs;
>> +
>> +	/*
>> +	 * UART controller configuration:
>> +	 * - no DMA
>> +	 * - no interrupt
>> +	 * - DCE mode
>> +	 * - no flow control
>> +	 * - set RX ready oride
>> +	 * - set TX ready oride
>> +	 */
>> +	val = (AR933X_UART_CS_IF_MODE_DCE << AR933X_UART_CS_IF_MODE_S) |
>> +	      AR933X_UART_CS_TX_RDY_ORIDE | AR933X_UART_CS_RX_RDY_ORIDE;
>> +	ar933x_serial_write(dev, val, AR933X_UART_CS_REG);
>> +	return 0;
>> +}
>> +
>> +static int ar933x_serial_ofdata_to_platdata(struct udevice *dev)
>> +{
>> +	struct ar933x_serial_platdata *plat = dev_get_platdata(dev);
>> +	fdt_addr_t addr;
>> +
>> +	addr = dev_get_addr(dev);
>> +	if (addr == FDT_ADDR_T_NONE)
>> +		return -EINVAL;
>> +
>> +	plat->regs = map_physmem(addr,
>> +				 AR933X_UART_SIZE,
>> +				 MAP_NOCACHE);
> move this code to function ar933x_serial_probe and drop this function
>
>> +	return 0;
>> +}
>> +
>> +static const struct dm_serial_ops ar933x_serial_ops = {
>> +	.putc = ar933x_serial_putc,
>> +	.pending = ar933x_serial_pending,
>> +	.getc = ar933x_serial_getc,
>> +	.setbrg = ar933x_serial_setbrg,
>> +};
>> +
>> +static const struct udevice_id ar933x_serial_ids[] = {
>> +	{ .compatible = "ath79,ar933x-uart" },
>> +	{ }
>> +};
>> +
>> +U_BOOT_DRIVER(serial_ar933x) = {
>> +	.name   = "serial_ar933x",
>> +	.id = UCLASS_SERIAL,
>> +	.of_match = ar933x_serial_ids,
>> +	.ofdata_to_platdata = ar933x_serial_ofdata_to_platdata,
>> +	.platdata_auto_alloc_size = sizeof(struct ar933x_serial_platdata),
> drop the two lines, you do not need to allocate platdata
>
>> +	.priv_auto_alloc_size = sizeof(struct ar933x_serial_priv),
>> +	.probe = ar933x_serial_probe,
>> +	.ops    = &ar933x_serial_ops,
>> +	.flags = DM_FLAG_PRE_RELOC,
>> +};
>>

^ permalink raw reply	[flat|nested] 39+ messages in thread

* [U-Boot] [PATCH v4 6/8] mips: ath79: add AP121 reference board
  2015-12-26 13:52   ` Daniel Schwierzeck
  2015-12-26 16:59     ` Wills Wang
@ 2015-12-27  6:36     ` Wills Wang
  2015-12-27  6:41       ` Marek Vasut
  1 sibling, 1 reply; 39+ messages in thread
From: Wills Wang @ 2015-12-27  6:36 UTC (permalink / raw)
  To: u-boot



On 12/26/2015 09:52 PM, Daniel Schwierzeck wrote:
>
> Am 25.12.2015 um 19:56 schrieb Wills Wang:
>> Signed-off-by: Wills Wang <wills.wang@live.com>
>> ---
>>
>> Changes in v4: None
>> Changes in v3: None
>> Changes in v2: None
>>
>>   arch/mips/Kconfig             |  8 +++++
>>   arch/mips/dts/Makefile        |  2 +-
>>   arch/mips/dts/ap121.dts       | 37 +++++++++++++++++++
>>   arch/mips/dts/ar933x.dtsi     | 64 +++++++++++++++++++++++++++++++++
>>   board/ath79/ap121/Kconfig     | 15 ++++++++
>>   board/ath79/ap121/MAINTAINERS |  6 ++++
>>   board/ath79/ap121/Makefile    |  8 +++++
>>   board/ath79/ap121/README      | 18 ++++++++++
>>   board/ath79/ap121/ap121.c     | 17 +++++++++
>>   board/ath79/ap121/config.mk   | 16 +++++++++
>>   configs/ap121_defconfig       | 42 ++++++++++++++++++++++
>>   include/configs/ap121.h       | 82 +++++++++++++++++++++++++++++++++++++++++++
>>   12 files changed, 314 insertions(+), 1 deletion(-)
>>   create mode 100644 arch/mips/dts/ap121.dts
>>   create mode 100644 arch/mips/dts/ar933x.dtsi
>>   create mode 100644 board/ath79/ap121/Kconfig
>>   create mode 100644 board/ath79/ap121/MAINTAINERS
>>   create mode 100644 board/ath79/ap121/Makefile
>>   create mode 100644 board/ath79/ap121/README
>>   create mode 100644 board/ath79/ap121/ap121.c
>>   create mode 100644 board/ath79/ap121/config.mk
>>   create mode 100644 configs/ap121_defconfig
>>   create mode 100644 include/configs/ap121.h
>>
>> diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
>> index 7f7e258..09b8709 100644
>> --- a/arch/mips/Kconfig
>> +++ b/arch/mips/Kconfig
>> @@ -51,6 +51,13 @@ config TARGET_PB1X00
>>   	select SUPPORTS_CPU_MIPS32_R2
>>   	select SYS_MIPS_CACHE_INIT_RAM_LOAD
>>   
>> +config TARGET_AP121
>> +	bool "Support ap121"
>> +	select SUPPORTS_BIG_ENDIAN
>> +	select SUPPORTS_CPU_MIPS32_R1
>> +	select SUPPORTS_CPU_MIPS32_R2
>> +	select SYS_MIPS_CACHE_INIT_RAM_LOAD
>> +
> please create a dedicated Kconfig in arch/mips/mach-ath79/ and add this
> board there. Have a look at following links for examples:
>
> https://github.com/danielschwierzeck/u-boot-lantiq/blob/lantiq/upstream/arch/mips/mach-lantiq/Kconfig
>
> http://patchwork.ozlabs.org/patch/558465/
> http://patchwork.ozlabs.org/patch/558469/
>
>>   
>>   endchoice
>>   
>> @@ -59,6 +66,7 @@ source "board/imgtec/malta/Kconfig"
>>   source "board/micronas/vct/Kconfig"
>>   source "board/pb1x00/Kconfig"
>>   source "board/qemu-mips/Kconfig"
>> +source "board/ath79/ap121/Kconfig"
>>   
>>   if MIPS
>>   
>> diff --git a/arch/mips/dts/Makefile b/arch/mips/dts/Makefile
>> index 47b6eb5..6f8b413 100644
>> --- a/arch/mips/dts/Makefile
>> +++ b/arch/mips/dts/Makefile
>> @@ -2,7 +2,7 @@
>>   # SPDX-License-Identifier:	GPL-2.0+
>>   #
>>   
>> -dtb-y +=
>> +dtb-$(CONFIG_TARGET_AP121) += ap121.dtb
>>   
>>   targets += $(dtb-y)
>>   
>> diff --git a/arch/mips/dts/ap121.dts b/arch/mips/dts/ap121.dts
>> new file mode 100644
>> index 0000000..769458a
>> --- /dev/null
>> +++ b/arch/mips/dts/ap121.dts
>> @@ -0,0 +1,37 @@
>> +/dts-v1/;
>> +#include "ar933x.dtsi"
>> +
>> +/ {
>> +	model = "AP121 Reference Board";
>> +	compatible = "ath79,ap121", "ath79,ar933x";
>> +
>> +	aliases {
>> +		spi0 = &spi0;
>> +		serial0 = &uart0;
>> +	};
>> +
>> +	chosen {
>> +		stdout-path = "serial0:115200n8";
>> +	};
>> +};
>> +
>> +&xtal {
>> +	clock-frequency = <25000000>;
>> +};
>> +
>> +&uart0 {
>> +	status = "okay";
>> +};
>> +
>> +&spi0 {
>> +	spi-max-frequency = <25000000>;
>> +	status = "okay";
>> +	spi-flash at 0 {
>> +		#address-cells = <1>;
>> +		#size-cells = <1>;
>> +		compatible = "spi-flash";
>> +		memory-map = <0x9f000000 0x00800000>;
>> +		spi-max-frequency = <25000000>;
>> +		reg = <0>;
>> +	};
>> +};
>> diff --git a/arch/mips/dts/ar933x.dtsi b/arch/mips/dts/ar933x.dtsi
>> new file mode 100644
>> index 0000000..64b30f7
>> --- /dev/null
>> +++ b/arch/mips/dts/ar933x.dtsi
>> @@ -0,0 +1,64 @@
>> +#include "skeleton.dtsi"
>> +
>> +/ {
>> +	compatible = "ath79,ar933x";
> the first part should be a vendor name and according to device-trees
> from kernel this should be "qca"
>
>> +
>> +	#address-cells = <1>;
>> +	#size-cells = <1>;
>> +
>> +	cpus {
>> +		#address-cells = <1>;
>> +		#size-cells = <0>;
>> +
>> +		cpu at 0 {
>> +			device_type = "cpu";
>> +			compatible = "mips,mips24Kc";
>> +			reg = <0>;
>> +		};
>> +	};
>> +
>> +	clocks {
>> +		#address-cells = <1>;
>> +		#size-cells = <1>;
>> +		ranges;
>> +
>> +		xtal: xtal {
>> +			#clock-cells = <0>;
>> +			compatible = "fixed-clock";
>> +			clock-output-names = "xtal";
>> +		};
>> +	};
>> +
>> +	ahb {
>> +		compatible = "simple-bus";
>> +		ranges;
>> +
>> +		#address-cells = <1>;
>> +		#size-cells = <1>;
>> +
>> +		apb {
>> +			compatible = "simple-bus";
>> +			ranges;
>> +
>> +			#address-cells = <1>;
>> +			#size-cells = <1>;
>> +
>> +			uart0: uart at 18020000 {
>> +				compatible = "ath79,ar933x-uart";
> I suggest to use "qca,ar9330-uart" like the kernel driver
>
>> +				reg = <0x18020000 0x20>;
>> +
>> +				status = "disabled";
>> +			};
>> +		};
>> +
>> +		spi0: spi at 1f000000 {
>> +			compatible = "ath79,ath79-spi";
> I suggest to use "qca,ar7100-spi" like the kernel driver
>
>> +			reg = <0x1f000000 0x10>;
>> +
>> +			status = "disabled";
>> +
>> +			#address-cells = <1>;
>> +			#size-cells = <0>;
>> +		};
>> +	};
>> +};
>> diff --git a/board/ath79/ap121/Kconfig b/board/ath79/ap121/Kconfig
>> new file mode 100644
>> index 0000000..88d9eff
>> --- /dev/null
>> +++ b/board/ath79/ap121/Kconfig
>> @@ -0,0 +1,15 @@
>> +if TARGET_AP121
>> +
>> +config SYS_BOARD
>> +	default "ap121"
>> +
>> +config SYS_VENDOR
>> +	default "ath79"
>> +
>> +config SYS_SOC
>> +	default "ath79"
>> +
>> +config SYS_CONFIG_NAME
>> +	default "ap121"
>> +
>> +endif
>> diff --git a/board/ath79/ap121/MAINTAINERS b/board/ath79/ap121/MAINTAINERS
>> new file mode 100644
>> index 0000000..319b521
>> --- /dev/null
>> +++ b/board/ath79/ap121/MAINTAINERS
>> @@ -0,0 +1,6 @@
>> +AP121 BOARD
>> +M:	Wills Wang <wills.wang@live.com>
>> +S:	Maintained
>> +F:	board/ath79/ap121/
>> +F:	include/configs/ap121.h
>> +F:	configs/ap121_defconfig
>> diff --git a/board/ath79/ap121/Makefile b/board/ath79/ap121/Makefile
>> new file mode 100644
>> index 0000000..9132118
>> --- /dev/null
>> +++ b/board/ath79/ap121/Makefile
>> @@ -0,0 +1,8 @@
>> +#
>> +# (C) Copyright 2003-2006
>> +# Wolfgang Denk, DENX Software Engineering, wd at denx.de.
> again, no historic copyright needed for a simple one-line Makefile
>
>> +#
>> +# SPDX-License-Identifier:	GPL-2.0+
>> +#
>> +
>> +obj-y	= ap121.o
>> diff --git a/board/ath79/ap121/README b/board/ath79/ap121/README
>> new file mode 100644
>> index 0000000..104850f
>> --- /dev/null
>> +++ b/board/ath79/ap121/README
>> @@ -0,0 +1,18 @@
>> +ATHEROS AP121
>> +==================
>> +
>> +Supported hardware: AP121 referance board.
>> +
>> +Files of the AP121 port
>> +--------------------------
>> +
>> +arch/mips/mach-ath79/ar933x/	- The CPU support code for the Atheros ar933x
>> +arch/mips/include/asm/arch-ath79	- Header files for the Atheros ath79
>> +board/ath79/ap121/	- AP121 board specific files
>> +include/configs/ap121.h	- AP121 configuration file
>> +
>> +Configure
>> +-------------------
>> +
>> +To configure for the current board
>> +	make ap121_defconfig
> you can drop this README. There is no new or relevant information in it
>
>> diff --git a/board/ath79/ap121/ap121.c b/board/ath79/ap121/ap121.c
>> new file mode 100644
>> index 0000000..f60f88b
>> --- /dev/null
>> +++ b/board/ath79/ap121/ap121.c
>> @@ -0,0 +1,17 @@
>> +/*
>> + * (C) Copyright 2015
>> + * Wills Wang, <wills.wang@live.com>
>> + *
>> + * SPDX-License-Identifier:	GPL-2.0+
>> + */
>> +
>> +#include <common.h>
>> +#include <command.h>
>> +#include <asm/mipsregs.h>
>> +#include <asm/addrspace.h>
>> +#include <asm/io.h>
>> +
>> +int checkboard(void)
>> +{
>> +	return 0;
>> +}
> you could/should print your board name here
>
>> diff --git a/board/ath79/ap121/config.mk b/board/ath79/ap121/config.mk
>> new file mode 100644
>> index 0000000..f7dd3b7
>> --- /dev/null
>> +++ b/board/ath79/ap121/config.mk
>> @@ -0,0 +1,16 @@
>> +#
>> +# (C) Copyright 2003
>> +# Wolfgang Denk, DENX Software Engineering, wd at denx.de.
>> +#
>> +# SPDX-License-Identifier:	GPL-2.0+
>> +#
>> +
>> +#
>> +# AP121 referance board, MIPS32 core
>> +#
>> +
>> +# ROM version
>> +CONFIG_SYS_TEXT_BASE = 0x9f000000
>> +
>> +# RAM version
>> +#CONFIG_SYS_TEXT_BASE = 0x80010000
> config.mk files in board directory are also deprecated. Please add
> "#define CONFIG_SYS_TEXT_BASE 0x9f000000" to include/configs/ap121.h
>
>> diff --git a/configs/ap121_defconfig b/configs/ap121_defconfig
>> new file mode 100644
>> index 0000000..cec0bb7
>> --- /dev/null
>> +++ b/configs/ap121_defconfig
>> @@ -0,0 +1,42 @@
>> +CONFIG_MIPS=y
>> +CONFIG_TARGET_AP121=y
>> +CONFIG_SYS_MALLOC_F_LEN=0x2000
>> +CONFIG_SYS_PROMPT="ap121 # "
>> +CONFIG_OF_CONTROL=y
>> +CONFIG_DEFAULT_DEVICE_TREE="ap121"
>> +CONFIG_DM=y
> options like CONFIG_OF_CONTROL and CONFIG_DM should be pre-selected by
> the mach or SoC specific Kconfig file if you always require it. An user
> of your board should not be able to disable those options.
>
>> +CONFIG_DM_SERIAL=y
>> +CONFIG_DM_SPI=y
>> +CONFIG_DM_SPI_FLASH=y
>> +CONFIG_ATH79_SPI=y
>> +CONFIG_SPI_FLASH=y
>> +CONFIG_SPI_FLASH_BAR=y
>> +CONFIG_SPI_FLASH_ATMEL=y
>> +CONFIG_SPI_FLASH_EON=y
>> +CONFIG_SPI_FLASH_GIGADEVICE=y
>> +CONFIG_SPI_FLASH_MACRONIX=y
>> +CONFIG_SPI_FLASH_SPANSION=y
>> +CONFIG_SPI_FLASH_STMICRO=y
>> +CONFIG_SPI_FLASH_SST=y
>> +CONFIG_SPI_FLASH_WINBOND=y
>> +CONFIG_SPI_FLASH_USE_4K_SECTORS=y
>> +CONFIG_SPI_FLASH_DATAFLASH=y
>> +CONFIG_SPI_FLASH_MTD=y
>> +CONFIG_CMD_DM=y
>> +CONFIG_CMD_SF=y
>> +CONFIG_CMD_SPI=y
>> +# CONFIG_NET is not set
>> +# CONFIG_CMD_BDI is not set
>> +# CONFIG_CMD_CONSOLE is not set
>> +# CONFIG_CMD_IMLS is not set
>> +# CONFIG_CMD_XIMG is not set
>> +# CONFIG_CMD_ELF is not set
>> +# CONFIG_CMD_EXPORTENV is not set
>> +# CONFIG_CMD_IMPORTENV is not set
>> +# CONFIG_CMD_EDITENV is not set
>> +# CONFIG_CMD_CRC32 is not set
>> +# CONFIG_CMD_FLASH is not set
>> +# CONFIG_CMD_FPGA is not set
>> +# CONFIG_CMD_NFS is not set
>> +# CONFIG_CMD_NET is not set
>> +CONFIG_USE_PRIVATE_LIBGCC=y
>> diff --git a/include/configs/ap121.h b/include/configs/ap121.h
>> new file mode 100644
>> index 0000000..5a01d11
>> --- /dev/null
>> +++ b/include/configs/ap121.h
>> @@ -0,0 +1,82 @@
>> +#ifndef __CONFIG_H
>> +#define __CONFIG_H
>> +
>> +#include <linux/kconfig.h>
>> +#include <linux/sizes.h>
> those includes are not needed in a board config header file respectively
> they are already included implicitely
>
>> +
>> +#define CONFIG_ARCH_ATH79
>> +#define CONFIG_SOC_AR933X
> this is already configured by Kconfig
>
>> +
>> +#define CONFIG_DISPLAY_CPUINFO
>> +#define CONFIG_DISPLAY_BOARDINFO
>> +
>> +#define CONFIG_OF_LIBFDT
>> +
>> +#define CONFIG_SYS_HZ                   1000
>> +#define CONFIG_SYS_MHZ                  200
>> +#define CONFIG_SYS_MIPS_TIMER_FREQ      (CONFIG_SYS_MHZ * 1000000)
>> +
>> +/* Cache Configuration */
>> +#define CONFIG_SYS_DCACHE_SIZE          32 * SZ_1K
>> +#define CONFIG_SYS_ICACHE_SIZE          64 * SZ_1K
>> +#define CONFIG_SYS_CACHELINE_SIZE       32
> you can drop this, the cache sizes will be detected automatically
My board don't boot up if drop this.
>> +
>> +#define CONFIG_SYS_MONITOR_BASE         CONFIG_SYS_TEXT_BASE
>> +
>> +#define CONFIG_SYS_MALLOC_LEN           ROUND(0x30000 + 128 * SZ_1K, 0x1000)
> no need for a magic calculation, please choose a fixed value
>
>> +
>> +#define CONFIG_SYS_BOOTPARAMS_LEN       128 * SZ_1K
>> +
>> +#define CONFIG_SYS_SDRAM_BASE           0x80000000
>> +#define CONFIG_SYS_LOAD_ADDR            0x81000000
>> +
>> +#define CONFIG_SYS_INIT_SP_OFFSET       0x20000
>> +#define CONFIG_SYS_NO_FLASH
>> +
>> +#define CONFIG_AR933X_SERIAL
> this is already configured by Kconfig
>
>> +#define CONFIG_BAUDRATE                 115200
>> +#define CONFIG_SYS_BAUDRATE_TABLE       {9600, 19200, 38400, 57600, 115200}
>> +
>> +#define CONFIG_BOOTDELAY                3
>> +#define CONFIG_BOOTARGS                 "console=ttyS0,115200 " \
>> +					"root=/dev/mtdblock2 " \
>> +					"rootfstype=squashfs"
>> +#define CONFIG_BOOTCOMMAND              "sf probe;" \
>> +					"mtdparts default;" \
>> +					"bootm 0x9f300000"
>> +#define CONFIG_LZMA
>> +
>> +#define MTDIDS_DEFAULT                  "nor0=spi-flash.0"
>> +#define MTDPARTS_DEFAULT                "mtdparts=spi-flash.0:256k(u-boot)," \
>> +		"64k(u-boot-env),2752k(rootfs),896k(uImage),64k(NVRAM),64k(ART)"
>> +
>> +#define CONFIG_ENV_SPI_MAX_HZ           25000000
>> +#define CONFIG_ENV_IS_IN_SPI_FLASH
>> +#define CONFIG_ENV_OFFSET               (256 * SZ_1K)
>> +#define CONFIG_ENV_SECT_SIZE            (64 * SZ_1K)
>> +#define CONFIG_ENV_SIZE                 (64 * SZ_1K)
>> +
>> +/*
>> + * Command
>> + */
>> +#define CONFIG_CMD_MTDPARTS
>> +
>> +/* Miscellaneous configurable options */
>> +#define CONFIG_SYS_CBSIZE               256
>> +#define CONFIG_SYS_MAXARGS              16
>> +#define CONFIG_SYS_PBSIZE               (CONFIG_SYS_CBSIZE + \
>> +					sizeof(CONFIG_SYS_PROMPT) + 16)
>> +#define CONFIG_SYS_LONGHELP
>> +#define CONFIG_CMDLINE_EDITING
>> +#define CONFIG_AUTO_COMPLETE
>> +#define CONFIG_SYS_HUSH_PARSER
>> +#define CONFIG_SYS_PROMPT_HUSH_PS2      "> "
> this is already configured by Kconfig
>
>> +
>> +/*
>> + * Diagnostics
>> + */
>> +#define CONFIG_SYS_MEMTEST_START        0x80100000
>> +#define CONFIG_SYS_MEMTEST_END          0x83f00000
>> +#define CONFIG_CMD_MEMTEST
>> +
>> +#endif  /* __CONFIG_H */
>>

^ permalink raw reply	[flat|nested] 39+ messages in thread

* [U-Boot] [PATCH v4 6/8] mips: ath79: add AP121 reference board
  2015-12-27  6:36     ` Wills Wang
@ 2015-12-27  6:41       ` Marek Vasut
  2015-12-27  7:03         ` Wills Wang
  0 siblings, 1 reply; 39+ messages in thread
From: Marek Vasut @ 2015-12-27  6:41 UTC (permalink / raw)
  To: u-boot

On Sunday, December 27, 2015 at 07:36:00 AM, Wills Wang wrote:
> On 12/26/2015 09:52 PM, Daniel Schwierzeck wrote:
> > Am 25.12.2015 um 19:56 schrieb Wills Wang:
> >> Signed-off-by: Wills Wang <wills.wang@live.com>

[...]

> >> diff --git a/configs/ap121_defconfig b/configs/ap121_defconfig
> >> new file mode 100644
> >> index 0000000..cec0bb7
> >> --- /dev/null
> >> +++ b/configs/ap121_defconfig
> >> @@ -0,0 +1,42 @@
> >> +CONFIG_MIPS=y
> >> +CONFIG_TARGET_AP121=y
> >> +CONFIG_SYS_MALLOC_F_LEN=0x2000
> >> +CONFIG_SYS_PROMPT="ap121 # "
> >> +CONFIG_OF_CONTROL=y
> >> +CONFIG_DEFAULT_DEVICE_TREE="ap121"
> >> +CONFIG_DM=y
> > 
> > options like CONFIG_OF_CONTROL and CONFIG_DM should be pre-selected by
> > the mach or SoC specific Kconfig file if you always require it. An user
> > of your board should not be able to disable those options.
> > 
> >> +CONFIG_DM_SERIAL=y
> >> +CONFIG_DM_SPI=y
> >> +CONFIG_DM_SPI_FLASH=y
> >> +CONFIG_ATH79_SPI=y
> >> +CONFIG_SPI_FLASH=y
> >> +CONFIG_SPI_FLASH_BAR=y
> >> +CONFIG_SPI_FLASH_ATMEL=y
> >> +CONFIG_SPI_FLASH_EON=y
> >> +CONFIG_SPI_FLASH_GIGADEVICE=y
> >> +CONFIG_SPI_FLASH_MACRONIX=y
> >> +CONFIG_SPI_FLASH_SPANSION=y
> >> +CONFIG_SPI_FLASH_STMICRO=y
> >> +CONFIG_SPI_FLASH_SST=y
> >> +CONFIG_SPI_FLASH_WINBOND=y
> >> +CONFIG_SPI_FLASH_USE_4K_SECTORS=y
> >> +CONFIG_SPI_FLASH_DATAFLASH=y
> >> +CONFIG_SPI_FLASH_MTD=y
> >> +CONFIG_CMD_DM=y
> >> +CONFIG_CMD_SF=y
> >> +CONFIG_CMD_SPI=y
> >> +# CONFIG_NET is not set
> >> +# CONFIG_CMD_BDI is not set
> >> +# CONFIG_CMD_CONSOLE is not set
> >> +# CONFIG_CMD_IMLS is not set
> >> +# CONFIG_CMD_XIMG is not set
> >> +# CONFIG_CMD_ELF is not set
> >> +# CONFIG_CMD_EXPORTENV is not set
> >> +# CONFIG_CMD_IMPORTENV is not set
> >> +# CONFIG_CMD_EDITENV is not set
> >> +# CONFIG_CMD_CRC32 is not set
> >> +# CONFIG_CMD_FLASH is not set
> >> +# CONFIG_CMD_FPGA is not set
> >> +# CONFIG_CMD_NFS is not set
> >> +# CONFIG_CMD_NET is not set
> >> +CONFIG_USE_PRIVATE_LIBGCC=y

Why is private libgcc enabled here ? Is your toolchain buggy ?

> >> diff --git a/include/configs/ap121.h b/include/configs/ap121.h
> >> new file mode 100644
> >> index 0000000..5a01d11
> >> --- /dev/null
> >> +++ b/include/configs/ap121.h
> >> @@ -0,0 +1,82 @@
> >> +#ifndef __CONFIG_H
> >> +#define __CONFIG_H
> >> +
> >> +#include <linux/kconfig.h>
> >> +#include <linux/sizes.h>
> > 
> > those includes are not needed in a board config header file respectively
> > they are already included implicitely
> > 
> >> +
> >> +#define CONFIG_ARCH_ATH79
> >> +#define CONFIG_SOC_AR933X
> > 
> > this is already configured by Kconfig
> > 
> >> +
> >> +#define CONFIG_DISPLAY_CPUINFO
> >> +#define CONFIG_DISPLAY_BOARDINFO
> >> +
> >> +#define CONFIG_OF_LIBFDT
> >> +
> >> +#define CONFIG_SYS_HZ                   1000
> >> +#define CONFIG_SYS_MHZ                  200
> >> +#define CONFIG_SYS_MIPS_TIMER_FREQ      (CONFIG_SYS_MHZ * 1000000)
> >> +
> >> +/* Cache Configuration */
> >> +#define CONFIG_SYS_DCACHE_SIZE          32 * SZ_1K
> >> +#define CONFIG_SYS_ICACHE_SIZE          64 * SZ_1K
> >> +#define CONFIG_SYS_CACHELINE_SIZE       32
> > 
> > you can drop this, the cache sizes will be detected automatically
> 
> My board don't boot up if drop this.

btw please use the [...] to trim your reply to relevant parts only, it's
often real hard to find the relevant one-liner reply in a sea of quoted
text.

[...]

^ permalink raw reply	[flat|nested] 39+ messages in thread

* [U-Boot] [PATCH v4 6/8] mips: ath79: add AP121 reference board
  2015-12-27  6:41       ` Marek Vasut
@ 2015-12-27  7:03         ` Wills Wang
  2015-12-27  7:10           ` Marek Vasut
  0 siblings, 1 reply; 39+ messages in thread
From: Wills Wang @ 2015-12-27  7:03 UTC (permalink / raw)
  To: u-boot



On 12/27/2015 02:41 PM, Marek Vasut wrote:
> On Sunday, December 27, 2015 at 07:36:00 AM, Wills Wang wrote:
>> On 12/26/2015 09:52 PM, Daniel Schwierzeck wrote:
>>> Am 25.12.2015 um 19:56 schrieb Wills Wang:
>>>> Signed-off-by: Wills Wang <wills.wang@live.com>
> [...]
>
>>>> diff --git a/configs/ap121_defconfig b/configs/ap121_defconfig
>>>> new file mode 100644
>>>> index 0000000..cec0bb7
>>>> --- /dev/null
>>>> +++ b/configs/ap121_defconfig
>>>> @@ -0,0 +1,42 @@
>>>> +CONFIG_MIPS=y
>>>> +CONFIG_TARGET_AP121=y
>>>> +CONFIG_SYS_MALLOC_F_LEN=0x2000
>>>> +CONFIG_SYS_PROMPT="ap121 # "
>>>> +CONFIG_OF_CONTROL=y
>>>> +CONFIG_DEFAULT_DEVICE_TREE="ap121"
>>>> +CONFIG_DM=y
>>> options like CONFIG_OF_CONTROL and CONFIG_DM should be pre-selected by
>>> the mach or SoC specific Kconfig file if you always require it. An user
>>> of your board should not be able to disable those options.
>>>
>>>> +CONFIG_DM_SERIAL=y
>>>> +CONFIG_DM_SPI=y
>>>> +CONFIG_DM_SPI_FLASH=y
>>>> +CONFIG_ATH79_SPI=y
>>>> +CONFIG_SPI_FLASH=y
>>>> +CONFIG_SPI_FLASH_BAR=y
>>>> +CONFIG_SPI_FLASH_ATMEL=y
>>>> +CONFIG_SPI_FLASH_EON=y
>>>> +CONFIG_SPI_FLASH_GIGADEVICE=y
>>>> +CONFIG_SPI_FLASH_MACRONIX=y
>>>> +CONFIG_SPI_FLASH_SPANSION=y
>>>> +CONFIG_SPI_FLASH_STMICRO=y
>>>> +CONFIG_SPI_FLASH_SST=y
>>>> +CONFIG_SPI_FLASH_WINBOND=y
>>>> +CONFIG_SPI_FLASH_USE_4K_SECTORS=y
>>>> +CONFIG_SPI_FLASH_DATAFLASH=y
>>>> +CONFIG_SPI_FLASH_MTD=y
>>>> +CONFIG_CMD_DM=y
>>>> +CONFIG_CMD_SF=y
>>>> +CONFIG_CMD_SPI=y
>>>> +# CONFIG_NET is not set
>>>> +# CONFIG_CMD_BDI is not set
>>>> +# CONFIG_CMD_CONSOLE is not set
>>>> +# CONFIG_CMD_IMLS is not set
>>>> +# CONFIG_CMD_XIMG is not set
>>>> +# CONFIG_CMD_ELF is not set
>>>> +# CONFIG_CMD_EXPORTENV is not set
>>>> +# CONFIG_CMD_IMPORTENV is not set
>>>> +# CONFIG_CMD_EDITENV is not set
>>>> +# CONFIG_CMD_CRC32 is not set
>>>> +# CONFIG_CMD_FLASH is not set
>>>> +# CONFIG_CMD_FPGA is not set
>>>> +# CONFIG_CMD_NFS is not set
>>>> +# CONFIG_CMD_NET is not set
>>>> +CONFIG_USE_PRIVATE_LIBGCC=y
> Why is private libgcc enabled here ? Is your toolchain buggy ?
Follow from dbau1000_defconfig.
>>>> diff --git a/include/configs/ap121.h b/include/configs/ap121.h
>>>> new file mode 100644
>>>> index 0000000..5a01d11
>>>> --- /dev/null
>>>> +++ b/include/configs/ap121.h
>>>> @@ -0,0 +1,82 @@
>>>> +#ifndef __CONFIG_H
>>>> +#define __CONFIG_H
>>>> +
>>>> +#include <linux/kconfig.h>
>>>> +#include <linux/sizes.h>
>>> those includes are not needed in a board config header file respectively
>>> they are already included implicitely
>>>
>>>> +
>>>> +#define CONFIG_ARCH_ATH79
>>>> +#define CONFIG_SOC_AR933X
>>> this is already configured by Kconfig
>>>
>>>> +
>>>> +#define CONFIG_DISPLAY_CPUINFO
>>>> +#define CONFIG_DISPLAY_BOARDINFO
>>>> +
>>>> +#define CONFIG_OF_LIBFDT
>>>> +
>>>> +#define CONFIG_SYS_HZ                   1000
>>>> +#define CONFIG_SYS_MHZ                  200
>>>> +#define CONFIG_SYS_MIPS_TIMER_FREQ      (CONFIG_SYS_MHZ * 1000000)
>>>> +
>>>> +/* Cache Configuration */
>>>> +#define CONFIG_SYS_DCACHE_SIZE          32 * SZ_1K
>>>> +#define CONFIG_SYS_ICACHE_SIZE          64 * SZ_1K
>>>> +#define CONFIG_SYS_CACHELINE_SIZE       32
>>> you can drop this, the cache sizes will be detected automatically
>> My board don't boot up if drop this.
> btw please use the [...] to trim your reply to relevant parts only, it's
> often real hard to find the relevant one-liner reply in a sea of quoted
> text.
>
> [...]
>
>

^ permalink raw reply	[flat|nested] 39+ messages in thread

* [U-Boot] [PATCH v4 6/8] mips: ath79: add AP121 reference board
  2015-12-27  7:03         ` Wills Wang
@ 2015-12-27  7:10           ` Marek Vasut
  0 siblings, 0 replies; 39+ messages in thread
From: Marek Vasut @ 2015-12-27  7:10 UTC (permalink / raw)
  To: u-boot

On Sunday, December 27, 2015 at 08:03:55 AM, Wills Wang wrote:
> On 12/27/2015 02:41 PM, Marek Vasut wrote:
> > On Sunday, December 27, 2015 at 07:36:00 AM, Wills Wang wrote:
> >> On 12/26/2015 09:52 PM, Daniel Schwierzeck wrote:
> >>> Am 25.12.2015 um 19:56 schrieb Wills Wang:
> >>>> Signed-off-by: Wills Wang <wills.wang@live.com>
> > 
> > [...]
> > 
> >>>> diff --git a/configs/ap121_defconfig b/configs/ap121_defconfig
> >>>> new file mode 100644
> >>>> index 0000000..cec0bb7
> >>>> --- /dev/null
> >>>> +++ b/configs/ap121_defconfig
> >>>> @@ -0,0 +1,42 @@
> >>>> +CONFIG_MIPS=y
> >>>> +CONFIG_TARGET_AP121=y
> >>>> +CONFIG_SYS_MALLOC_F_LEN=0x2000
> >>>> +CONFIG_SYS_PROMPT="ap121 # "
> >>>> +CONFIG_OF_CONTROL=y
> >>>> +CONFIG_DEFAULT_DEVICE_TREE="ap121"
> >>>> +CONFIG_DM=y
> >>> 
> >>> options like CONFIG_OF_CONTROL and CONFIG_DM should be pre-selected by
> >>> the mach or SoC specific Kconfig file if you always require it. An user
> >>> of your board should not be able to disable those options.
> >>> 
> >>>> +CONFIG_DM_SERIAL=y
> >>>> +CONFIG_DM_SPI=y
> >>>> +CONFIG_DM_SPI_FLASH=y
> >>>> +CONFIG_ATH79_SPI=y
> >>>> +CONFIG_SPI_FLASH=y
> >>>> +CONFIG_SPI_FLASH_BAR=y
> >>>> +CONFIG_SPI_FLASH_ATMEL=y
> >>>> +CONFIG_SPI_FLASH_EON=y
> >>>> +CONFIG_SPI_FLASH_GIGADEVICE=y
> >>>> +CONFIG_SPI_FLASH_MACRONIX=y
> >>>> +CONFIG_SPI_FLASH_SPANSION=y
> >>>> +CONFIG_SPI_FLASH_STMICRO=y
> >>>> +CONFIG_SPI_FLASH_SST=y
> >>>> +CONFIG_SPI_FLASH_WINBOND=y
> >>>> +CONFIG_SPI_FLASH_USE_4K_SECTORS=y
> >>>> +CONFIG_SPI_FLASH_DATAFLASH=y
> >>>> +CONFIG_SPI_FLASH_MTD=y
> >>>> +CONFIG_CMD_DM=y
> >>>> +CONFIG_CMD_SF=y
> >>>> +CONFIG_CMD_SPI=y
> >>>> +# CONFIG_NET is not set
> >>>> +# CONFIG_CMD_BDI is not set
> >>>> +# CONFIG_CMD_CONSOLE is not set
> >>>> +# CONFIG_CMD_IMLS is not set
> >>>> +# CONFIG_CMD_XIMG is not set
> >>>> +# CONFIG_CMD_ELF is not set
> >>>> +# CONFIG_CMD_EXPORTENV is not set
> >>>> +# CONFIG_CMD_IMPORTENV is not set
> >>>> +# CONFIG_CMD_EDITENV is not set
> >>>> +# CONFIG_CMD_CRC32 is not set
> >>>> +# CONFIG_CMD_FLASH is not set
> >>>> +# CONFIG_CMD_FPGA is not set
> >>>> +# CONFIG_CMD_NFS is not set
> >>>> +# CONFIG_CMD_NET is not set
> >>>> +CONFIG_USE_PRIVATE_LIBGCC=y
> > 
> > Why is private libgcc enabled here ? Is your toolchain buggy ?
> 
> Follow from dbau1000_defconfig.

Daniel, can you clarify why this is enabled ?

[...]

^ permalink raw reply	[flat|nested] 39+ messages in thread

* [U-Boot] [PATCH v4 4/8] mips: ath79: add serial driver for ar933x SOC
  2015-12-27  6:28     ` Wills Wang
@ 2015-12-27  8:21       ` Thomas Chou
  2015-12-27 13:07         ` Thomas Chou
  0 siblings, 1 reply; 39+ messages in thread
From: Thomas Chou @ 2015-12-27  8:21 UTC (permalink / raw)
  To: u-boot

Hi Wills,

On 2015?12?27? 14:28, Wills Wang wrote:
>>> +static int ar933x_serial_putc(struct udevice *dev, const char c)
>>> +{
>>> +    u32 data;
>>> +
>>> +    if (c == '\n')
>>> +        ar933x_serial_putc(dev, '\r');
>> remove this, the serial core driver takes care of it
>>
>>> +
>>> +    do {
>>> +        data = ar933x_serial_read(dev, AR933X_UART_DATA_REG);
>>> +    } while (!(data & AR933X_UART_DATA_TX_CSR));
>> remove this, the serial core driver takes care of it via your pending
>> callback (ar933x_serial_pending)
>>
>
> Serial core driver don't query and wait the pending function before
> "serial_getc" and "serial_putc", so these statements can't remove,
> or board don't work.

As I wrote in the v3 patch review, both the getc() and putc() should 
return -EAGAIN if there is no available data to read or not ready to 
write. The polling is done in the serial-uclass.c

Regards,
Thomas

^ permalink raw reply	[flat|nested] 39+ messages in thread

* [U-Boot] [PATCH v4 4/8] mips: ath79: add serial driver for ar933x SOC
  2015-12-26 13:20   ` Daniel Schwierzeck
  2015-12-26 16:54     ` Wills Wang
  2015-12-27  6:28     ` Wills Wang
@ 2015-12-27  8:31     ` Thomas Chou
  2 siblings, 0 replies; 39+ messages in thread
From: Thomas Chou @ 2015-12-27  8:31 UTC (permalink / raw)
  To: u-boot

Hi Wills,

On 2015?12?26? 21:20, Daniel Schwierzeck wrote:
>> +static int ar933x_serial_probe(struct udevice *dev)
>> +{
>> +	struct ar933x_serial_priv *priv = dev_get_priv(dev);
>> +	struct ar933x_serial_platdata *plat = dev_get_platdata(dev);
>> +	u32 val;
>> +
>> +	priv->regs = plat->regs;
>> +
>> +	/*
>> +	 * UART controller configuration:
>> +	 * - no DMA
>> +	 * - no interrupt
>> +	 * - DCE mode
>> +	 * - no flow control
>> +	 * - set RX ready oride
>> +	 * - set TX ready oride
>> +	 */
>> +	val = (AR933X_UART_CS_IF_MODE_DCE << AR933X_UART_CS_IF_MODE_S) |
>> +	      AR933X_UART_CS_TX_RDY_ORIDE | AR933X_UART_CS_RX_RDY_ORIDE;
>> +	ar933x_serial_write(dev, val, AR933X_UART_CS_REG);
>> +	return 0;
>> +}
>> +
>> +static int ar933x_serial_ofdata_to_platdata(struct udevice *dev)
>> +{
>> +	struct ar933x_serial_platdata *plat = dev_get_platdata(dev);
>> +	fdt_addr_t addr;
>> +
>> +	addr = dev_get_addr(dev);
>> +	if (addr == FDT_ADDR_T_NONE)
>> +		return -EINVAL;
>> +
>> +	plat->regs = map_physmem(addr,
>> +				 AR933X_UART_SIZE,
>> +				 MAP_NOCACHE);
>
> move this code to function ar933x_serial_probe and drop this function
>
>> +	return 0;
>> +}
>> +
>> +static const struct dm_serial_ops ar933x_serial_ops = {
>> +	.putc = ar933x_serial_putc,
>> +	.pending = ar933x_serial_pending,
>> +	.getc = ar933x_serial_getc,
>> +	.setbrg = ar933x_serial_setbrg,
>> +};
>> +
>> +static const struct udevice_id ar933x_serial_ids[] = {
>> +	{ .compatible = "ath79,ar933x-uart" },
>> +	{ }
>> +};
>> +
>> +U_BOOT_DRIVER(serial_ar933x) = {
>> +	.name   = "serial_ar933x",
>> +	.id = UCLASS_SERIAL,
>> +	.of_match = ar933x_serial_ids,
>> +	.ofdata_to_platdata = ar933x_serial_ofdata_to_platdata,
>> +	.platdata_auto_alloc_size = sizeof(struct ar933x_serial_platdata),
>
> drop the two lines, you do not need to allocate platdata
>

It might be another option to keep platdata and ofdata_to_platdata(), 
and remove the priv data. Let ofdata_to_platdata() do the DT conversion 
and probe() detect and initialize the hardware. This is what these func 
expected to do. The priv data is needed only when there is variable data 
to save per device.

Best regards,
Thomas

^ permalink raw reply	[flat|nested] 39+ messages in thread

* [U-Boot] [PATCH v4 3/8] mips: add base support for atheros ath79 based SOCs
  2015-12-26 17:01       ` Daniel Schwierzeck
  2015-12-26 17:06         ` Marek Vasut
@ 2015-12-27  9:37         ` Wills Wang
  1 sibling, 0 replies; 39+ messages in thread
From: Wills Wang @ 2015-12-27  9:37 UTC (permalink / raw)
  To: u-boot



On 12/27/2015 01:01 AM, Daniel Schwierzeck wrote:
>>>> +    u32 id, major, minor;
>>>> +    u32 rev = 0;
>>>> +    u32 ver = 1;
>>>> +
>>>> +    id = readl(KSEG1ADDR(AR71XX_RESET_BASE + AR71XX_RESET_REG_REV_ID));
>>>> +    major = id & REV_ID_MAJOR_MASK;
>>>> +
>>>> +    switch (major) {
>>>> +    case REV_ID_MAJOR_AR71XX:
>>>> +        minor = id & AR71XX_REV_ID_MINOR_MASK;
>>>> +        rev = id >> AR71XX_REV_ID_REVISION_SHIFT;
>>>> +        rev &= AR71XX_REV_ID_REVISION_MASK;
>>>> +        switch (minor) {
>>> I did review this already and my suggestions were ignored :-( I stop
>>> here ...
>> Sorry, I forget this.
>> This code inherit from kernel, to change would maintain it much more
>> difficult.
> I agree with Marek that a lookup table would be better. But why do you
> want to add all possible QCA based SoC's? Until there is no supported
> board for other SoC's than yours, this would be dead code.
>
The shift bits of minor and revision is different for same chips, same chips
should ignore the minor bits,  the lookup table must store these shift
information and which was ignored in common, so the table will become more
complex if this code want to be compatible with many other SOCs.
If people want to add other QCA's SoC, need spend a great deal of time
to debug this code.

-- 
Best Regards
Wills

^ permalink raw reply	[flat|nested] 39+ messages in thread

* [U-Boot] [PATCH v4 4/8] mips: ath79: add serial driver for ar933x SOC
  2015-12-27  8:21       ` Thomas Chou
@ 2015-12-27 13:07         ` Thomas Chou
  0 siblings, 0 replies; 39+ messages in thread
From: Thomas Chou @ 2015-12-27 13:07 UTC (permalink / raw)
  To: u-boot

Hi Wills,

Please note the following,

1. add this uart to drivers/serial/Kconfig .

2. add debug uart support. see include/debug_uart.h . also add it to Kconfig

3. cp linux/Documentation/devicetree/bindings/serial/qca,ar9330-uart.txt
       u-boot/doc/device-tree-bindings/serial/

4. to save change to xxx_defconfig, run
    make savedefconfig
    cp defconfig configs/xxx_defconfig

Best regards,
Thomas

^ permalink raw reply	[flat|nested] 39+ messages in thread

end of thread, other threads:[~2015-12-27 13:07 UTC | newest]

Thread overview: 39+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
     [not found] <1451069788-6786-1-git-send-email-wills.wang@live.com>
2015-12-25 18:56 ` [U-Boot] [PATCH v4 1/8] include: Add support for "do_div" macro Wills Wang
2015-12-26  7:24   ` Marek Vasut
2015-12-26 15:48     ` Wills Wang
2015-12-26 13:09   ` Daniel Schwierzeck
2015-12-26 16:54     ` Wills Wang
2015-12-25 18:56 ` [U-Boot] [PATCH v4 2/8] mips: implement to access the KSEG0/1 memory range in map_physmem Wills Wang
2015-12-26  7:25   ` Marek Vasut
2015-12-25 18:56 ` [U-Boot] [PATCH v4 3/8] mips: add base support for atheros ath79 based SOCs Wills Wang
2015-12-26  7:28   ` Marek Vasut
2015-12-26 16:17     ` Wills Wang
2015-12-26 17:01       ` Daniel Schwierzeck
2015-12-26 17:06         ` Marek Vasut
2015-12-27  9:37         ` Wills Wang
2015-12-25 18:56 ` [U-Boot] [PATCH v4 4/8] mips: ath79: add serial driver for ar933x SOC Wills Wang
2015-12-26 13:20   ` Daniel Schwierzeck
2015-12-26 16:54     ` Wills Wang
2015-12-26 17:19       ` Daniel Schwierzeck
2015-12-27  6:28     ` Wills Wang
2015-12-27  8:21       ` Thomas Chou
2015-12-27 13:07         ` Thomas Chou
2015-12-27  8:31     ` Thomas Chou
2015-12-25 18:56 ` [U-Boot] [PATCH v4 5/8] mips: ath79: add spi driver Wills Wang
2015-12-26 13:23   ` Daniel Schwierzeck
2015-12-26 16:56     ` Wills Wang
2015-12-25 18:56 ` [U-Boot] [PATCH v4 6/8] mips: ath79: add AP121 reference board Wills Wang
2015-12-26 13:52   ` Daniel Schwierzeck
2015-12-26 16:59     ` Wills Wang
2015-12-26 17:07       ` Daniel Schwierzeck
2015-12-27  6:36     ` Wills Wang
2015-12-27  6:41       ` Marek Vasut
2015-12-27  7:03         ` Wills Wang
2015-12-27  7:10           ` Marek Vasut
2015-12-25 18:56 ` [U-Boot] [PATCH v4 7/8] mips: support optimize tuning for same common processor cores Wills Wang
2015-12-26  7:30   ` Marek Vasut
2015-12-26 18:58   ` Daniel Schwierzeck
2015-12-27  3:03     ` Wills Wang
2015-12-25 18:56 ` [U-Boot] [PATCH v4 8/8] mips: move optimize tuning option from deprecated config.mk to Kconfig Wills Wang
2015-12-26  7:30   ` Marek Vasut
2015-12-26 17:33     ` Wills Wang

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