[PATCH v5 0/8] MIPS: Loongson: Add the Loongson-1A processor support

[PATCH v5 0/8] MIPS: Loongson: Add the Loongson-1A processor support

[Binbin Zhou]

The Loongson-1A CPU is similar with Loongson-1B/1C, which is a 32-bit SoC.

It is a cost-effective single chip system based on LS232 processor core,
and is applicable to fields such as industrial control, and security applications.

It implements the MIPS32 release 2 instruction set.

They share the same PRID, so we rewrite them into PRID_REV_LOONGSON1ABC,
and use their CPU macros to distinguish.

Changes since v1:

1. According commit c908656a7531771ae7642990a7c5f3c7307bd612
   (MIPS: Loongson: Naming style cleanup and rework) to fix the naming style.

Changes since v2:

1. Remove __irq_set_handler_locked()
2. Rebases on top of v4.5-rc5.

Changes since v3:

1. Rename the Loongson-1 series's PRID name
2. Rewite Loongson-1A's clk driver
2. Rebases on top of v4.10-rc2.

Changes since v4:

1. Fix some commit message error

Binbin Zhou(8):
 MIPS: Loongson: Merge PRID macro for Loongson-1A/1B/1C
 MIPS: Loongson: Expand Loongson-1's register definition
 MIPS: Loongson: Add basic Loongson-1A CPU support
 MIPS: Loongson: Add Loongson-1A Kconfig options
 MIPS: Loongson: Add platform devices for Loongson-1A
 MIPS: Loongson: Add Loongson-1A board support
 clk: Loongson: Add Loongson-1A clock support
 MIPS: Loongson: Add Loongson-1A default config file

Signed-off-by: Binbin Zhou <zhoubb@lemote.com>
Signed-off-by: Huacai Chen <chenhc@lemote.com>
-- 
 arch/mips/Kconfig                                 |  12 +++++++++
 arch/mips/configs/loongson1a_defconfig            | 131 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 arch/mips/include/asm/cpu-type.h                  |   3 ++-
 arch/mips/include/asm/cpu.h                       |   3 +--
 arch/mips/include/asm/mach-loongson32/irq.h       |  16 ++++++++----
 arch/mips/include/asm/mach-loongson32/loongson1.h | 172 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++---------------------
 arch/mips/include/asm/mach-loongson32/platform.h  |   2 ++
 arch/mips/include/asm/mach-loongson32/regs-clk.h  |  30 ++++++++++++++++++++-
 arch/mips/include/asm/mach-loongson32/regs-mux.h  |  36 ++++++++++++++++++++++++-
 arch/mips/kernel/cpu-probe.c                      |   6 ++++-
 arch/mips/loongson32/Kconfig                      |  20 ++++++++++++++
 arch/mips/loongson32/Makefile                     |   6 +++++
 arch/mips/loongson32/Platform                     |   1 +
 arch/mips/loongson32/common/irq.c                 |   2 +-
 arch/mips/loongson32/common/platform.c            |  83 ++++++++++++++++++++++++++++++++++++++++++++++++----------
 arch/mips/loongson32/common/setup.c               |   6 +++--
 arch/mips/loongson32/ls1a/Makefile                |   5 ++++
 arch/mips/loongson32/ls1a/board.c                 |  31 ++++++++++++++++++++++
 arch/mips/mm/c-r4k.c                              |  10 +++++++
 drivers/clk/loongson1/Makefile                    |   1 +
 drivers/clk/loongson1/clk-loongson1a.c            |  75 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 21 files changed, 593 insertions(+), 58 deletions(-)
 create mode 100644 arch/mips/configs/loongson1a_defconfig
 create mode 100644 arch/mips/loongson32/ls1a/Makefile
 create mode 100644 arch/mips/loongson32/ls1a/board.c
 create mode 100644 drivers/clk/loongson1/clk-loongson1a.c
--
1.9.0

[PATCH v5 1/8] MIPS: Loongson: Merge PRID macro for Loongson-1A/1B/1C

[Binbin Zhou]

The Loongson-1 series CPUs(1A/1B/1C) share the same PRID macro.

Signed-off-by: Binbin Zhou <zhoubb@lemote.com>
Signed-off-by: HuaCai Chen <chenhc@lemote.com>
---
 arch/mips/include/asm/cpu.h         | 3 +--
 arch/mips/kernel/cpu-probe.c        | 4 +++-
 arch/mips/loongson32/common/setup.c | 2 +-
 3 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/arch/mips/include/asm/cpu.h b/arch/mips/include/asm/cpu.h
index 9a83724..76c0b56c3 100644
--- a/arch/mips/include/asm/cpu.h
+++ b/arch/mips/include/asm/cpu.h
@@ -239,8 +239,7 @@
 #define PRID_REV_VR4181A	0x0070	/* Same as VR4122 */
 #define PRID_REV_VR4130		0x0080
 #define PRID_REV_34K_V1_0_2	0x0022
-#define PRID_REV_LOONGSON1B	0x0020
-#define PRID_REV_LOONGSON1C	0x0020	/* Same as Loongson-1B */
+#define PRID_REV_LOONGSON1ABC	0x0020
 #define PRID_REV_LOONGSON2E	0x0002
 #define PRID_REV_LOONGSON2F	0x0003
 #define PRID_REV_LOONGSON3A_R1	0x0005
diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c
index 07718bb..657d65d 100644
--- a/arch/mips/kernel/cpu-probe.c
+++ b/arch/mips/kernel/cpu-probe.c
@@ -1502,8 +1502,10 @@ static inline void cpu_probe_legacy(struct cpuinfo_mips *c, unsigned int cpu)
 		c->cputype = CPU_LOONGSON1;
 
 		switch (c->processor_id & PRID_REV_MASK) {
-		case PRID_REV_LOONGSON1B:
+		case PRID_REV_LOONGSON1ABC:
+#ifdef CONFIG_CPU_LOONGSON1B
 			__cpu_name[cpu] = "Loongson 1B";
+#endif
 			break;
 		}
 
diff --git a/arch/mips/loongson32/common/setup.c b/arch/mips/loongson32/common/setup.c
index 1640744..c8e8b3e 100644
--- a/arch/mips/loongson32/common/setup.c
+++ b/arch/mips/loongson32/common/setup.c
@@ -21,7 +21,7 @@ const char *get_system_type(void)
 	unsigned int processor_id = (&current_cpu_data)->processor_id;
 
 	switch (processor_id & PRID_REV_MASK) {
-	case PRID_REV_LOONGSON1B:
+	case PRID_REV_LOONGSON1ABC:
 #if defined(CONFIG_LOONGSON1_LS1B)
 		return "LOONGSON LS1B";
 #elif defined(CONFIG_LOONGSON1_LS1C)
-- 
2.9.3

[PATCH v5 2/8] MIPS: Loongson: Expand Loongson-1's register definition

[Binbin Zhou]

Rewrite their names for more readable

Signed-off-by: Binbin Zhou <zhoubb@lemote.com>
Signed-off-by: HuaCai Chen <chenhc@lemote.com>
---
 arch/mips/include/asm/mach-loongson32/loongson1.h | 170 ++++++++++++++++++----
 arch/mips/loongson32/common/platform.c            |  16 +-
 2 files changed, 149 insertions(+), 37 deletions(-)

diff --git a/arch/mips/include/asm/mach-loongson32/loongson1.h b/arch/mips/include/asm/mach-loongson32/loongson1.h
index 84c28a8..8cfd4ba 100644
--- a/arch/mips/include/asm/mach-loongson32/loongson1.h
+++ b/arch/mips/include/asm/mach-loongson32/loongson1.h
@@ -19,35 +19,147 @@
 #endif
 
 /* Loongson 1 Register Bases */
-#define LS1X_MUX_BASE			0x1fd00420
-#define LS1X_INTC_BASE			0x1fd01040
-#define LS1X_GPIO0_BASE			0x1fd010c0
-#define LS1X_GPIO1_BASE			0x1fd010c4
-#define LS1X_DMAC_BASE			0x1fd01160
-#define LS1X_CBUS_BASE			0x1fd011c0
-#define LS1X_EHCI_BASE			0x1fe00000
-#define LS1X_OHCI_BASE			0x1fe08000
-#define LS1X_GMAC0_BASE			0x1fe10000
-#define LS1X_GMAC1_BASE			0x1fe20000
-
-#define LS1X_UART0_BASE			0x1fe40000
-#define LS1X_UART1_BASE			0x1fe44000
-#define LS1X_UART2_BASE			0x1fe48000
-#define LS1X_UART3_BASE			0x1fe4c000
-#define LS1X_CAN0_BASE			0x1fe50000
-#define LS1X_CAN1_BASE			0x1fe54000
-#define LS1X_I2C0_BASE			0x1fe58000
-#define LS1X_I2C1_BASE			0x1fe68000
-#define LS1X_I2C2_BASE			0x1fe70000
-#define LS1X_PWM0_BASE			0x1fe5c000
-#define LS1X_PWM1_BASE			0x1fe5c010
-#define LS1X_PWM2_BASE			0x1fe5c020
-#define LS1X_PWM3_BASE			0x1fe5c030
-#define LS1X_WDT_BASE			0x1fe5c060
-#define LS1X_RTC_BASE			0x1fe64000
-#define LS1X_AC97_BASE			0x1fe74000
-#define LS1X_NAND_BASE			0x1fe78000
-#define LS1X_CLK_BASE			0x1fe78030
+#define LS1X_DC_REG_BASE		0x1c200000
+#define LS1X_MUX_REG_BASE		0x1f000000
+
+#define LS1X_CFG_REG_BASE		(LS1X_MUX_REG_BASE + 0x00d00000)
+
+#define LS1X_INTC_BASE			(LS1X_CFG_REG_BASE + 0x1040)
+
+/* GPIO regs */
+#define LS1X_GPIO_REG_BASE		(LS1X_CFG_REG_BASE + 0x1000)
+#define LS1X_GPIO_CFG0_REG		(LS1X_GPIO_REG_BASE + 0xc0)
+#define LS1X_GPIO_CFG1_REG		(LS1X_GPIO_REG_BASE + 0xc4)
+#define LS1X_GPIO_CFG2_REG		(LS1X_GPIO_REG_BASE + 0xc8)
+#define LS1X_GPIO_OE0_REG		(LS1X_GPIO_REG_BASE + 0xd0)
+#define LS1X_GPIO_OE1_REG		(LS1X_GPIO_REG_BASE + 0xd4)
+#define LS1X_GPIO_OE2_REG		(LS1X_GPIO_REG_BASE + 0xd8)
+#define LS1X_GPIO_IN0_REG		(LS1X_GPIO_REG_BASE + 0xe0)
+#define LS1X_GPIO_IN1_REG		(LS1X_GPIO_REG_BASE + 0xe4)
+#define LS1X_GPIO_IN2_REG		(LS1X_GPIO_REG_BASE + 0xe8)
+#define LS1X_GPIO_OUT0_REG		(LS1X_GPIO_REG_BASE + 0xf0)
+#define LS1X_GPIO_OUT1_REG		(LS1X_GPIO_REG_BASE + 0xf4)
+#define LS1X_GPIO_OUT2_REG		(LS1X_GPIO_REG_BASE + 0xf8)
+
+#define LS1X_DMA_ORDER_REG		(LS1X_CFG_REG_BASE + 0x1160)
+
+#define LS1X_MUX_BASE			(LS1X_CFG_REG_BASE + 0x0420)
+
+/* USB regs */
+#define LS1X_EHCI_BASE			(LS1X_MUX_REG_BASE + 0x00e00000)
+#define LS1X_OHCI_BASE			(LS1X_MUX_REG_BASE + 0x00e08000)
+
+/* GMAC regs */
+#define LS1X_GMAC0_BASE			(LS1X_MUX_REG_BASE + 0x00e10000)
+#define LS1X_GMAC0_DMA_REG		(LS1X_GMAC0_BASE + 0x1000)
+#define LS1X_GMAC1_BASE			(LS1X_MUX_REG_BASE + 0x00e20000)
+#define LS1X_GMAC1_DMA_REG		(LS1X_GMAC1_BASE + 0x1000)
+
+/* SATA regs */
+#define LS1X_AHCI_BASE			(LS1X_MUX_REG_BASE + 0x00e30000)
+
+/* APB regs */
+#define LS1X_APB_REG_BASE		(LS1X_MUX_REG_BASE + 0x00e40000)
+
+/* UART regs */
+#define LS1X_UART0_BASE			(LS1X_APB_REG_BASE + 0x0000)
+#define LS1X_UART1_BASE			(LS1X_APB_REG_BASE + 0x4000)
+#define LS1X_UART2_BASE			(LS1X_APB_REG_BASE + 0x8000)
+#define LS1X_UART3_BASE			(LS1X_APB_REG_BASE + 0xc000)
+
+/* CAN regs */
+#define LS1X_CAN0_BASE			(LS1X_APB_REG_BASE + 0x10000)
+#define LS1X_CAN1_BASE			(LS1X_APB_REG_BASE + 0x14000)
+
+#define LS1X_I2C0_BASE			(LS1X_APB_REG_BASE + 0x18000)
+#define LS1X_I2C0_PRER_LO_REG		(LS1X_I2C0_BASE + 0x0)
+#define LS1X_I2C0_PRER_HI_REG		(LS1X_I2C0_BASE + 0x1)
+#define LS1X_I2C0_CTR_REG		(LS1X_I2C0_BASE + 0x2)
+#define LS1X_I2C0_TXR_REG		(LS1X_I2C0_BASE + 0x3)
+#define LS1X_I2C0_RXR_REG		(LS1X_I2C0_BASE + 0x3)
+#define LS1X_I2C0_CR_REG		(LS1X_I2C0_BASE + 0x4)
+#define LS1X_I2C0_SR_REG		(LS1X_I2C0_BASE + 0x4)
+
+#define LS1X_I2C1_BASE			(LS1X_APB_REG_BASE + 0x28000)
+#define LS1X_I2C1_PRER_LO_REG		(LS1X_I2C1_BASE + 0x0)
+#define LS1X_I2C1_PRER_HI_REG		(LS1X_I2C1_BASE + 0x1)
+#define LS1X_I2C1_CTR_REG		(LS1X_I2C1_BASE + 0x2)
+#define LS1X_I2C1_TXR_REG		(LS1X_I2C1_BASE + 0x3)
+#define LS1X_I2C1_RXR_REG		(LS1X_I2C1_BASE + 0x3)
+#define LS1X_I2C1_CR_REG		(LS1X_I2C1_BASE + 0x4)
+#define LS1X_I2C1_SR_REG		(LS1X_I2C1_BASE + 0x4)
+
+#define LS1X_I2C2_BASE			(LS1X_APB_REG_BASE + 0x30000)
+#define LS1X_I2C2_PRER_LO_REG		(LS1X_I2C2_BASE + 0x0)
+#define LS1X_I2C2_PRER_HI_REG		(LS1X_I2C2_BASE + 0x1)
+#define LS1X_I2C2_CTR_REG		(LS1X_I2C2_BASE + 0x2)
+#define LS1X_I2C2_TXR_REG		(LS1X_I2C2_BASE + 0x3)
+#define LS1X_I2C2_RXR_REG		(LS1X_I2C2_BASE + 0x3)
+#define LS1X_I2C2_CR_REG		(LS1X_I2C2_BASE + 0x4)
+#define LS1X_I2C2_SR_REG		(LS1X_I2C2_BASE + 0x4)
+
+#define LS1X_PWM_REG_BASE		(LS1X_APB_REG_BASE + 0x1c000)
+#define LS1X_PWM0_BASE			(LS1X_PWM_REG_BASE + 0x00)
+#define LS1X_PWM1_BASE			(LS1X_PWM_REG_BASE + 0x10)
+#define LS1X_PWM2_BASE			(LS1X_PWM_REG_BASE + 0x20)
+#define LS1X_PWM3_BASE			(LS1X_PWM_REG_BASE + 0x30)
+
+/* RTC regs */
+#define LS1X_RTC_BASE			(LS1X_APB_REG_BASE + 0x24000)
+
+/* AC97 regs */
+#define LS1X_AC97_BASE			(LS1X_APB_REG_BASE + 0x34000)
+
+/* Watchdog regs */
+#ifdef CONFIG_CPU_LOONGSON1A
+#define LS1X_WDT_BASE			(LS1X_MUX_REG_BASE + 0x00e7c060)
+#else
+#define LS1X_WDT_BASE			(LS1X_MUX_REG_BASE + 0x00e5c060)
+#endif
+
+/* CLK regs */
+#define LS1X_CLK_BASE			(LS1X_MUX_REG_BASE + 0x00e78030)
+
+/* NAND regs */
+#define LS1X_NAND_REG_BASE		(LS1X_APB_REG_BASE + 0x38000)
+#define LS1X_NAND_CMD_REG		(LS1X_NAND_REG_BASE + 0x0000)
+#define LS1X_NAND_ADDR_C_REG		(LS1X_NAND_REG_BASE + 0x0004)
+#define LS1X_NAND_ADDR_R_REG		(LS1X_NAND_REG_BASE + 0x0008)
+#define LS1X_NAND_TIMING_REG		(LS1X_NAND_REG_BASE + 0x000c)
+#define LS1X_NAND_IDL_REG		(LS1X_NAND_REG_BASE + 0x0010)
+#define LS1X_NAND_STA_IDH_REG		(LS1X_NAND_REG_BASE + 0x0014)
+#define LS1X_NAND_PARAM_REG		(LS1X_NAND_REG_BASE + 0x0018)
+#define LS1X_NAND_OP_NUM_REG		(LS1X_NAND_REG_BASE + 0x001c)
+#define LS1X_NAND_CSRDY_MAP_REG		(LS1X_NAND_REG_BASE + 0x0020)
+#define LS1X_NAND_DMA_ACC_REG		(LS1X_NAND_REG_BASE + 0x0040)
+
+/* ACPI regs for ls1a */
+#define LS1X_ACPI_REG_BASE		(LS1X_APB_REG_BASE + 0x3c000)
+#define LS1X_PM1_STS_REG		(LS1X_ACPI_REG_BASE + 0x0000)
+#define LS1X_PM1_EN_REG			(LS1X_ACPI_REG_BASE + 0x0004)
+#define LS1X_PM1_CNT_REG		(LS1X_ACPI_REG_BASE + 0x0008)
+#define LS1X_PM1_TMR_REG		(LS1X_ACPI_REG_BASE + 0x000c)
+#define LS1X_P_CNT_REG			(LS1X_ACPI_REG_BASE + 0x0010)
+#define LS1X_P_LVL2_REG			(LS1X_ACPI_REG_BASE + 0x0014)
+#define LS1X_P_LVL3_REG			(LS1X_ACPI_REG_BASE + 0x0018)
+#define LS1X_GPE0_STS_REG		(LS1X_ACPI_REG_BASE + 0x0020)
+#define LS1X_GPE0_EN_REG		(LS1X_ACPI_REG_BASE + 0x0024)
+#define LS1X_PM_CONF1_REG		(LS1X_ACPI_REG_BASE + 0x0030)
+#define LS1X_PM_CONF2_REG		(LS1X_ACPI_REG_BASE + 0x0034)
+#define LS1X_PM_CONF3_REG		(LS1X_ACPI_REG_BASE + 0x0038)
+#define LS1X_RST_CNT_REG		(LS1X_ACPI_REG_BASE + 0x0044)
+#define LS1X_CPU_INIT_REG		(LS1X_ACPI_REG_BASE + 0x0050)
+
+#define LS1X_SPI0_REG_BASE		(LS1X_MUX_REG_BASE + 0x00e80000)
+#define LS1X_SPI1_REG_BASE		(LS1X_MUX_REG_BASE + 0x00ec0000)
+
+/* LPC regs */
+#define LS1X_LPC_IO_BASE		(LS1X_MUX_REG_BASE + 0x00f00000)
+#define LS1X_LPC_REG_BASE		(LS1X_MUX_REG_BASE + 0x00f10200)
+#define LS1X_LPC_CFG0_REG		(LS1X_LPC_REG_BASE + 0x0)
+#define LS1X_LPC_CFG1_REG		(LS1X_LPC_REG_BASE + 0x4)
+#define LS1X_LPC_CFG2_REG		(LS1X_LPC_REG_BASE + 0x8)
+#define LS1X_LPC_CFG3_REG		(LS1X_LPC_REG_BASE + 0xc)
 
 #include <regs-clk.h>
 #include <regs-mux.h>
diff --git a/arch/mips/loongson32/common/platform.c b/arch/mips/loongson32/common/platform.c
index 100f23d..f71392f 100644
--- a/arch/mips/loongson32/common/platform.c
+++ b/arch/mips/loongson32/common/platform.c
@@ -84,8 +84,8 @@ struct platform_device ls1x_cpufreq_pdev = {
 /* DMA */
 static struct resource ls1x_dma_resources[] = {
 	[0] = {
-		.start = LS1X_DMAC_BASE,
-		.end = LS1X_DMAC_BASE + SZ_4 - 1,
+		.start = LS1X_DMA_ORDER_REG,
+		.end = LS1X_DMA_ORDER_REG + SZ_4 - 1,
 		.flags = IORESOURCE_MEM,
 	},
 	[1] = {
@@ -259,8 +259,8 @@ struct platform_device ls1x_eth1_pdev = {
 /* GPIO */
 static struct resource ls1x_gpio0_resources[] = {
 	[0] = {
-		.start	= LS1X_GPIO0_BASE,
-		.end	= LS1X_GPIO0_BASE + SZ_4 - 1,
+		.start	= LS1X_GPIO_CFG0_REG,
+		.end	= LS1X_GPIO_CFG0_REG + SZ_4 - 1,
 		.flags	= IORESOURCE_MEM,
 	},
 };
@@ -274,8 +274,8 @@ struct platform_device ls1x_gpio0_pdev = {
 
 static struct resource ls1x_gpio1_resources[] = {
 	[0] = {
-		.start	= LS1X_GPIO1_BASE,
-		.end	= LS1X_GPIO1_BASE + SZ_4 - 1,
+		.start	= LS1X_GPIO_CFG1_REG,
+		.end	= LS1X_GPIO_CFG1_REG + SZ_4 - 1,
 		.flags	= IORESOURCE_MEM,
 	},
 };
@@ -290,8 +290,8 @@ struct platform_device ls1x_gpio1_pdev = {
 /* NAND Flash */
 static struct resource ls1x_nand_resources[] = {
 	[0] = {
-		.start	= LS1X_NAND_BASE,
-		.end	= LS1X_NAND_BASE + SZ_32 - 1,
+		.start	= LS1X_NAND_REG_BASE,
+		.end	= LS1X_NAND_REG_BASE + SZ_32 - 1,
 		.flags	= IORESOURCE_MEM,
 	},
 	[1] = {
-- 
2.9.3

[PATCH v5 3/8] MIPS: Loongson: Add basic Loongson-1A CPU support

[Binbin Zhou]

The Loongson-1A CPU is similar with Loongson-1B/1C, which is a 32-bit SoC.
It implements the MIPS32 release 2 instruction set.

It is a cost-effective single chip system based on LS232 processor core,
and is applicable to fields such as industrial control, and security applications.

Signed-off-by: Binbin Zhou <zhoubb@lemote.com>
Signed-off-by: HuaCai Chen <chenhc@lemote.com>
---
 arch/mips/include/asm/cpu-type.h    |  3 ++-
 arch/mips/kernel/cpu-probe.c        |  4 +++-
 arch/mips/loongson32/Platform       |  1 +
 arch/mips/loongson32/common/setup.c |  4 +++-
 arch/mips/mm/c-r4k.c                | 10 ++++++++++
 5 files changed, 19 insertions(+), 3 deletions(-)

diff --git a/arch/mips/include/asm/cpu-type.h b/arch/mips/include/asm/cpu-type.h
index bdd6dc1..13ea1ea5 100644
--- a/arch/mips/include/asm/cpu-type.h
+++ b/arch/mips/include/asm/cpu-type.h
@@ -24,7 +24,8 @@ static inline int __pure __get_cpu_type(const int cpu_type)
 	case CPU_LOONGSON3:
 #endif
 
-#if defined(CONFIG_SYS_HAS_CPU_LOONGSON1B) || \
+#if defined(CONFIG_SYS_HAS_CPU_LOONGSON1A) || \
+    defined(CONFIG_SYS_HAS_CPU_LOONGSON1B) || \
     defined(CONFIG_SYS_HAS_CPU_LOONGSON1C)
 	case CPU_LOONGSON1:
 #endif
diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c
index 657d65d..59ad3b7 100644
--- a/arch/mips/kernel/cpu-probe.c
+++ b/arch/mips/kernel/cpu-probe.c
@@ -1503,7 +1503,9 @@ static inline void cpu_probe_legacy(struct cpuinfo_mips *c, unsigned int cpu)
 
 		switch (c->processor_id & PRID_REV_MASK) {
 		case PRID_REV_LOONGSON1ABC:
-#ifdef CONFIG_CPU_LOONGSON1B
+#if defined(CONFIG_LOONGSON1_LS1A)
+			__cpu_name[cpu] = "Loongson 1A";
+#elif defined(CONFIG_CPU_LOONGSON1B)
 			__cpu_name[cpu] = "Loongson 1B";
 #endif
 			break;
diff --git a/arch/mips/loongson32/Platform b/arch/mips/loongson32/Platform
index ffe01c6..a9e0fa7 100644
--- a/arch/mips/loongson32/Platform
+++ b/arch/mips/loongson32/Platform
@@ -4,5 +4,6 @@ cflags-$(CONFIG_CPU_LOONGSON1)	+= \
 
 platform-$(CONFIG_MACH_LOONGSON32)	+= loongson32/
 cflags-$(CONFIG_MACH_LOONGSON32)	+= -I$(srctree)/arch/mips/include/asm/mach-loongson32
+load-$(CONFIG_LOONGSON1_LS1A)		+= 0xffffffff80200000
 load-$(CONFIG_LOONGSON1_LS1B)		+= 0xffffffff80100000
 load-$(CONFIG_LOONGSON1_LS1C)		+= 0xffffffff80100000
diff --git a/arch/mips/loongson32/common/setup.c b/arch/mips/loongson32/common/setup.c
index c8e8b3e..1c3324a 100644
--- a/arch/mips/loongson32/common/setup.c
+++ b/arch/mips/loongson32/common/setup.c
@@ -22,7 +22,9 @@ const char *get_system_type(void)
 
 	switch (processor_id & PRID_REV_MASK) {
 	case PRID_REV_LOONGSON1ABC:
-#if defined(CONFIG_LOONGSON1_LS1B)
+#if defined(CONFIG_LOONGSON1_LS1A)
+		return "LOONGSON LS1A";
+#elif defined(CONFIG_LOONGSON1_LS1B)
 		return "LOONGSON LS1B";
 #elif defined(CONFIG_LOONGSON1_LS1C)
 		return "LOONGSON LS1C";
diff --git a/arch/mips/mm/c-r4k.c b/arch/mips/mm/c-r4k.c
index e7f798d..44c4088 100644
--- a/arch/mips/mm/c-r4k.c
+++ b/arch/mips/mm/c-r4k.c
@@ -1366,6 +1366,16 @@ static void probe_pcache(void)
 		c->options |= MIPS_CPU_PREFETCH;
 		break;
 
+	case CPU_LOONGSON1:
+		if (read_c0_config7() & MIPS_CONF7_AR) {
+			/*
+			 * effectively physically indexed dcache,
+			 * thus no virtual aliases.
+			 */
+			c->dcache.flags |= MIPS_CACHE_PINDEX;
+			break;
+		}
+
 	default:
 		if (!(config & MIPS_CONF_M))
 			panic("Don't know how to probe P-caches on this cpu.");
-- 
2.9.3

[PATCH v5 4/8] MIPS: Loongson: Add Loongson-1A Kconfig options

[Binbin Zhou]

Added Kconfig options include: Loongson-1A CPU and machine definition,
CPU cache features, 32-bit kernel and early printk support.

Signed-off-by: Binbin Zhou <zhoubb@lemote.com>
Signed-off-by: HuaCai Chen <chenhc@lemote.com>
---
 arch/mips/Kconfig            | 12 ++++++++++++
 arch/mips/loongson32/Kconfig | 20 ++++++++++++++++++++
 2 files changed, 32 insertions(+)

diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index b969522..b4f59c5 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -1420,6 +1420,15 @@ config CPU_LOONGSON2F
 	  have a similar programming interface with FPGA northbridge used in
 	  Loongson2E.
 
+config CPU_LOONGSON1A
+	bool "Loongson 1A"
+	depends on SYS_HAS_CPU_LOONGSON1A
+	select CPU_LOONGSON1
+	select LEDS_GPIO_REGISTER
+	help
+	  The Loongson 1A is a 32-bit SoC, which implements the MIPS32
+	  release 2 instruction set.
+
 config CPU_LOONGSON1B
 	bool "Loongson 1B"
 	depends on SYS_HAS_CPU_LOONGSON1B
@@ -1884,6 +1893,9 @@ config SYS_HAS_CPU_LOONGSON2F
 	select CPU_SUPPORTS_ADDRWINCFG if 64BIT
 	select CPU_SUPPORTS_UNCACHED_ACCELERATED
 
+config SYS_HAS_CPU_LOONGSON1A
+	bool
+
 config SYS_HAS_CPU_LOONGSON1B
 	bool
 
diff --git a/arch/mips/loongson32/Kconfig b/arch/mips/loongson32/Kconfig
index 3c0c2f2..6e0f6ec 100644
--- a/arch/mips/loongson32/Kconfig
+++ b/arch/mips/loongson32/Kconfig
@@ -1,8 +1,28 @@
 if MACH_LOONGSON32
 
+config ZONE_DMA
+	prompt "Zone DMA"
+	bool
+
 choice
 	prompt "Machine Type"
 
+config LOONGSON1_LS1A
+	bool "Loongson LS1A board"
+	select CEVT_R4K if !MIPS_EXTERNAL_TIMER
+	select CSRC_R4K if !MIPS_EXTERNAL_TIMER
+	select SYS_HAS_CPU_LOONGSON1A
+	select DMA_NONCOHERENT
+	select BOOT_ELF32
+	select IRQ_MIPS_CPU
+	select SYS_SUPPORTS_32BIT_KERNEL
+	select SYS_SUPPORTS_LITTLE_ENDIAN
+	select SYS_SUPPORTS_HIGHMEM
+	select SYS_SUPPORTS_MIPS16
+	select SYS_HAS_EARLY_PRINTK
+	select USE_GENERIC_EARLY_PRINTK_8250
+	select COMMON_CLK
+
 config LOONGSON1_LS1B
 	bool "Loongson LS1B board"
 	select CEVT_R4K if !MIPS_EXTERNAL_TIMER
-- 
2.9.3

[PATCH v5 5/8] MIPS: Loongson: Add platform devices for Loongson-1A

[Binbin Zhou]

Added basic platform devices for Loongson-1A, including serial port,
ethernet, AHCI, USB and so on.

As we known, Most of them are shared with Loongson-1B/1C,
like serial port, ethernet and so on.

But something like AHCI is only supported by Loonson-1A.

Signed-off-by: Binbin Zhou <zhoubb@lemote.com>
Signed-off-by: HuaCai Chen <chenhc@lemote.com>
---
 arch/mips/include/asm/mach-loongson32/irq.h       | 16 ++++--
 arch/mips/include/asm/mach-loongson32/loongson1.h |  2 +-
 arch/mips/include/asm/mach-loongson32/platform.h  |  2 +
 arch/mips/include/asm/mach-loongson32/regs-mux.h  | 36 +++++++++++-
 arch/mips/loongson32/common/irq.c                 |  2 +-
 arch/mips/loongson32/common/platform.c            | 67 +++++++++++++++++++++--
 6 files changed, 111 insertions(+), 14 deletions(-)

diff --git a/arch/mips/include/asm/mach-loongson32/irq.h b/arch/mips/include/asm/mach-loongson32/irq.h
index 8c01b30..e790957 100644
--- a/arch/mips/include/asm/mach-loongson32/irq.h
+++ b/arch/mips/include/asm/mach-loongson32/irq.h
@@ -36,7 +36,7 @@
 #define LS1X_IRQ(n, x)			(LS1X_IRQ_BASE + (n << 5) + (x))
 
 #define LS1X_UART0_IRQ			LS1X_IRQ(0, 2)
-#if defined(CONFIG_LOONGSON1_LS1B)
+#if defined(CONFIG_LOONGSON1_LS1A) || defined(CONFIG_LOONGSON1_LS1B)
 #define LS1X_UART1_IRQ			LS1X_IRQ(0, 3)
 #define LS1X_UART2_IRQ			LS1X_IRQ(0, 4)
 #define LS1X_UART3_IRQ			LS1X_IRQ(0, 5)
@@ -52,7 +52,9 @@
 #define LS1X_DMA0_IRQ			LS1X_IRQ(0, 13)
 #define LS1X_DMA1_IRQ			LS1X_IRQ(0, 14)
 #define LS1X_DMA2_IRQ			LS1X_IRQ(0, 15)
-#if defined(CONFIG_LOONGSON1_LS1C)
+#if defined(CONFIG_LOONGSON1_LS1A)
+#define LS1X_LPC_IRQ			LS1X_IRQ(0, 16)
+#elif defined(CONFIG_LOONGSON1_LS1C)
 #define LS1X_NAND_IRQ			LS1X_IRQ(0, 16)
 #endif
 #define LS1X_PWM0_IRQ			LS1X_IRQ(0, 17)
@@ -62,7 +64,7 @@
 #define LS1X_RTC_INT0_IRQ		LS1X_IRQ(0, 21)
 #define LS1X_RTC_INT1_IRQ		LS1X_IRQ(0, 22)
 #define LS1X_RTC_INT2_IRQ		LS1X_IRQ(0, 23)
-#if defined(CONFIG_LOONGSON1_LS1B)
+#if defined(CONFIG_LOONGSON1_LS1A) || defined(CONFIG_LOONGSON1_LS1B)
 #define LS1X_TOY_INT0_IRQ		LS1X_IRQ(0, 24)
 #define LS1X_TOY_INT1_IRQ		LS1X_IRQ(0, 25)
 #define LS1X_TOY_INT2_IRQ		LS1X_IRQ(0, 26)
@@ -78,7 +80,11 @@
 
 #define LS1X_EHCI_IRQ			LS1X_IRQ(1, 0)
 #define LS1X_OHCI_IRQ			LS1X_IRQ(1, 1)
-#if defined(CONFIG_LOONGSON1_LS1B)
+#if defined(CONFIG_LOONGSON1_LS1A)
+#define LS1X_GMAC0_IRQ			LS1X_IRQ(1, 2)
+#define LS1X_GMAC1_IRQ			LS1X_IRQ(1, 3)
+#define LS1X_SATA_IRQ			LS1X_IRQ(1, 4)
+#elif defined(CONFIG_LOONGSON1_LS1B)
 #define LS1X_GMAC0_IRQ			LS1X_IRQ(1, 2)
 #define LS1X_GMAC1_IRQ			LS1X_IRQ(1, 3)
 #elif defined(CONFIG_LOONGSON1_LS1C)
@@ -100,7 +106,7 @@
 
 #if defined(CONFIG_LOONGSON1_LS1B)
 #define INTN	4
-#elif defined(CONFIG_LOONGSON1_LS1C)
+#elif defined(CONFIG_LOONGSON1_LS1A) || defined(CONFIG_LOONGSON1_LS1C)
 #define INTN	5
 #endif
 
diff --git a/arch/mips/include/asm/mach-loongson32/loongson1.h b/arch/mips/include/asm/mach-loongson32/loongson1.h
index 8cfd4ba..029b3b7 100644
--- a/arch/mips/include/asm/mach-loongson32/loongson1.h
+++ b/arch/mips/include/asm/mach-loongson32/loongson1.h
@@ -12,7 +12,7 @@
 #ifndef __ASM_MACH_LOONGSON32_LOONGSON1_H
 #define __ASM_MACH_LOONGSON32_LOONGSON1_H
 
-#if defined(CONFIG_LOONGSON1_LS1B)
+#if defined(CONFIG_LOONGSON1_LS1A) || defined(CONFIG_LOONGSON1_LS1B)
 #define DEFAULT_MEMSIZE			64	/* If no memsize provided */
 #elif defined(CONFIG_LOONGSON1_LS1C)
 #define DEFAULT_MEMSIZE			32
diff --git a/arch/mips/include/asm/mach-loongson32/platform.h b/arch/mips/include/asm/mach-loongson32/platform.h
index 8f8fa43..f28f814 100644
--- a/arch/mips/include/asm/mach-loongson32/platform.h
+++ b/arch/mips/include/asm/mach-loongson32/platform.h
@@ -26,6 +26,8 @@ extern struct platform_device ls1x_gpio1_pdev;
 extern struct platform_device ls1x_nand_pdev;
 extern struct platform_device ls1x_rtc_pdev;
 extern struct platform_device ls1x_wdt_pdev;
+extern struct platform_device ls1x_ahci_pdev;
+extern struct platform_device ls1x_ohci_pdev;
 
 void __init ls1x_clk_init(void);
 void __init ls1x_dma_set_platdata(struct plat_ls1x_dma *pdata);
diff --git a/arch/mips/include/asm/mach-loongson32/regs-mux.h b/arch/mips/include/asm/mach-loongson32/regs-mux.h
index 4a0bdeb..2c22603 100644
--- a/arch/mips/include/asm/mach-loongson32/regs-mux.h
+++ b/arch/mips/include/asm/mach-loongson32/regs-mux.h
@@ -18,7 +18,41 @@
 #define LS1X_MUX_CTRL0			LS1X_MUX_REG(0x0)
 #define LS1X_MUX_CTRL1			LS1X_MUX_REG(0x4)
 
-#if defined(CONFIG_LOONGSON1_LS1B)
+#if defined(CONFIG_LOONGSON1_LS1A)
+/* GPIO CTRL0 Register Bits */
+#define NAND3_USE_CAN1			BIT(31)
+#define NAND2_USE_MS			BIT(30)
+#define NAND1_USE_PWM01			BIT(29)
+#define NAND3_D45_USE_PWM23		BIT(28)
+#define NAND3_D45_USE_LPC		BIT(27)
+#define NAND3_D03_USE_SPI1		BIT(26)
+#define NAND3_D03_USE_LPC		BIT(25)
+#define GMAC1_SHUT			BIT(24)
+#define GMAC0_SHUT			BIT(23)
+#define SATA_SHUT			BIT(22)
+#define USB_SHUT			BIT(21)
+#define GPU_SHUT			BIT(20)
+#define DDR2_SHUT			BIT(19)
+#define VGA_USE_PCI			BIT(18)
+#define I2C3_USE_CAN0			BIT(17)
+#define I2C2_USE_CAN1			BIT(16)
+#define SPI0_USE_CAN0_TX		BIT(15)
+#define SPI0_USE_CAN0_RX		BIT(14)
+#define SPI1_USE_CAN1_TX		BIT(13)
+#define SPI1_USE_CAN1_RX		BIT(12)
+#define GMAC1_USE_TXCLK			BIT(11)
+#define GMAC0_USE_TXCLK			BIT(10)
+#define GMAC1_USE_PWM23			BIT(9)
+#define GMAC0_USE_PWM01			BIT(8)
+#define GMAC1_USE_UART1			BIT(7)
+#define GMAC1_USE_UART0			BIT(6)
+#define GMAC1_USE_SPI1			BIT(5)
+#define GMAC1_USE_NAND			BIT(4)
+#define PCI_REQ2_USE_GMAC1		BIT(2)
+#define DISABLE_DDR2_CONFSPACE		BIT(1)
+#define DDE32TO16EN			BIT(0)
+
+#elif defined(CONFIG_LOONGSON1_LS1B)
 /* MUX CTRL0 Register Bits */
 #define UART0_USE_PWM23			BIT(28)
 #define UART0_USE_PWM01			BIT(27)
diff --git a/arch/mips/loongson32/common/irq.c b/arch/mips/loongson32/common/irq.c
index 635a4ab..b414eca 100644
--- a/arch/mips/loongson32/common/irq.c
+++ b/arch/mips/loongson32/common/irq.c
@@ -184,7 +184,7 @@ static void __init ls1x_irq_init(int base)
 	setup_irq(INT1_IRQ, &cascade_irqaction);
 	setup_irq(INT2_IRQ, &cascade_irqaction);
 	setup_irq(INT3_IRQ, &cascade_irqaction);
-#if defined(CONFIG_LOONGSON1_LS1C)
+#if defined(CONFIG_LOONGSON1_LS1A) || defined(CONFIG_LOONGSON1_LS1C)
 	setup_irq(INT4_IRQ, &cascade_irqaction);
 #endif
 }
diff --git a/arch/mips/loongson32/common/platform.c b/arch/mips/loongson32/common/platform.c
index f71392f..6b83fcf 100644
--- a/arch/mips/loongson32/common/platform.c
+++ b/arch/mips/loongson32/common/platform.c
@@ -16,6 +16,7 @@
 #include <linux/serial_8250.h>
 #include <linux/stmmac.h>
 #include <linux/usb/ehci_pdriver.h>
+#include <linux/usb/ohci_pdriver.h>
 
 #include <platform.h>
 #include <loongson1.h>
@@ -133,7 +134,7 @@ int ls1x_eth_mux_init(struct platform_device *pdev, void *priv)
 
 	val = __raw_readl(LS1X_MUX_CTRL1);
 
-#if defined(CONFIG_LOONGSON1_LS1B)
+#if defined(CONFIG_LOONGSON1_LS1A) || defined(CONFIG_LOONGSON1_LS1B)
 	plat_dat = dev_get_platdata(&pdev->dev);
 	if (plat_dat->bus_id) {
 		__raw_writel(__raw_readl(LS1X_MUX_CTRL0) | GMAC1_USE_UART1 |
@@ -185,7 +186,7 @@ int ls1x_eth_mux_init(struct platform_device *pdev, void *priv)
 static struct plat_stmmacenet_data ls1x_eth0_pdata = {
 	.bus_id		= 0,
 	.phy_addr	= -1,
-#if defined(CONFIG_LOONGSON1_LS1B)
+#if defined(CONFIG_LOONGSON1_LS1A) || defined(CONFIG_LOONGSON1_LS1B)
 	.interface	= PHY_INTERFACE_MODE_MII,
 #elif defined(CONFIG_LOONGSON1_LS1C)
 	.interface	= PHY_INTERFACE_MODE_RMII,
@@ -220,7 +221,7 @@ struct platform_device ls1x_eth0_pdev = {
 	},
 };
 
-#ifdef CONFIG_LOONGSON1_LS1B
+#if defined(CONFIG_LOONGSON1_LS1A) || defined(CONFIG_LOONGSON1_LS1B)
 static struct plat_stmmacenet_data ls1x_eth1_pdata = {
 	.bus_id		= 1,
 	.phy_addr	= -1,
@@ -254,7 +255,7 @@ struct platform_device ls1x_eth1_pdev = {
 		.platform_data = &ls1x_eth1_pdata,
 	},
 };
-#endif	/* CONFIG_LOONGSON1_LS1B */
+#endif	/* CONFIG_LOONGSON1_LS1A || CONFIG_LOONGSON1_LS1B */
 
 /* GPIO */
 static struct resource ls1x_gpio0_resources[] = {
@@ -315,7 +316,7 @@ void __init ls1x_nand_set_platdata(struct plat_ls1x_nand *pdata)
 }
 
 /* USB EHCI */
-static u64 ls1x_ehci_dmamask = DMA_BIT_MASK(32);
+static u64 ls1x_platform_dmamask = DMA_BIT_MASK(32);
 
 static struct resource ls1x_ehci_resources[] = {
 	[0] = {
@@ -338,11 +339,65 @@ struct platform_device ls1x_ehci_pdev = {
 	.num_resources	= ARRAY_SIZE(ls1x_ehci_resources),
 	.resource	= ls1x_ehci_resources,
 	.dev		= {
-		.dma_mask = &ls1x_ehci_dmamask,
+		.dma_mask = &ls1x_platform_dmamask,
 		.platform_data = &ls1x_ehci_pdata,
 	},
 };
 
+/* USB OHCI */
+static struct resource ls1x_ohci_resources[] = {
+	[0] = {
+		.start	= LS1X_OHCI_BASE,
+		.end	= LS1X_OHCI_BASE + SZ_32K - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= LS1X_OHCI_IRQ,
+		.end	= LS1X_OHCI_IRQ,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct usb_ohci_pdata ls1x_ohci_data = {
+};
+
+struct platform_device ls1x_ohci_pdev = {
+	.name		= "ohci-platform",
+	.id		= -1,
+	.num_resources	= ARRAY_SIZE(ls1x_ohci_resources),
+	.resource	= ls1x_ohci_resources,
+	.dev = {
+		.dma_mask	= &ls1x_platform_dmamask,
+		.platform_data	= &ls1x_ohci_data,
+	},
+};
+
+#ifdef CONFIG_LOONGSON1_LS1A
+/* AHCI */
+static struct resource ls1x_ahci_resources[] = {
+	[0] = {
+		.start	= LS1X_AHCI_BASE,
+		.end	= LS1X_AHCI_BASE + SZ_64K - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= LS1X_SATA_IRQ,
+		.end	= LS1X_SATA_IRQ,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+struct platform_device ls1x_ahci_pdev = {
+	.name		= "ahci",
+	.id		= -1,
+	.num_resources	= ARRAY_SIZE(ls1x_ahci_resources),
+	.resource	= ls1x_ahci_resources,
+	.dev		= {
+		.dma_mask = &ls1x_platform_dmamask,
+	},
+};
+#endif
+
 /* Real Time Clock */
 void __init ls1x_rtc_set_extclk(struct platform_device *pdev)
 {
-- 
2.9.3

[PATCH v5 6/8] MIPS: Loongson: Add Loongson-1A board support

[Binbin Zhou]

Register basic devices for Loongson-1A, and setup clk for UART.

Signed-off-by: Binbin Zhou <zhoubb@lemote.com>
Signed-off-by: HuaCai Chen <chenhc@lemote.com>
---
 arch/mips/loongson32/Makefile      |  6 ++++++
 arch/mips/loongson32/ls1a/Makefile |  5 +++++
 arch/mips/loongson32/ls1a/board.c  | 31 +++++++++++++++++++++++++++++++
 3 files changed, 42 insertions(+)
 create mode 100644 arch/mips/loongson32/ls1a/Makefile
 create mode 100644 arch/mips/loongson32/ls1a/board.c

diff --git a/arch/mips/loongson32/Makefile b/arch/mips/loongson32/Makefile
index 1ab2c5b..cd1f597 100644
--- a/arch/mips/loongson32/Makefile
+++ b/arch/mips/loongson32/Makefile
@@ -5,6 +5,12 @@
 obj-$(CONFIG_MACH_LOONGSON32) += common/
 
 #
+# Loongson LS1A board
+#
+
+obj-$(CONFIG_LOONGSON1_LS1A)  += ls1a/
+
+#
 # Loongson LS1B board
 #
 
diff --git a/arch/mips/loongson32/ls1a/Makefile b/arch/mips/loongson32/ls1a/Makefile
new file mode 100644
index 0000000..dc23a9a
--- /dev/null
+++ b/arch/mips/loongson32/ls1a/Makefile
@@ -0,0 +1,5 @@
+#
+# Makefile for loongson1A based machines.
+#
+
+obj-y += board.o
diff --git a/arch/mips/loongson32/ls1a/board.c b/arch/mips/loongson32/ls1a/board.c
new file mode 100644
index 0000000..7993f6c
--- /dev/null
+++ b/arch/mips/loongson32/ls1a/board.c
@@ -0,0 +1,31 @@
+/*
+ * Copyright (c) 2016 Binbin Zhou <zhoubb@lemote.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <platform.h>
+
+static struct platform_device *ls1a_platform_devices[] __initdata = {
+	&ls1x_uart_pdev,
+	&ls1x_eth0_pdev,
+	&ls1x_eth1_pdev,
+	&ls1x_rtc_pdev,
+	&ls1x_wdt_pdev,
+	&ls1x_ahci_pdev,
+	&ls1x_ohci_pdev,
+};
+
+static int __init ls1a_platform_init(void)
+{
+	ls1x_serial_set_uartclk(&ls1x_uart_pdev);
+	ls1x_rtc_set_extclk(&ls1x_rtc_pdev);
+
+	return platform_add_devices(ls1a_platform_devices,
+				   ARRAY_SIZE(ls1a_platform_devices));
+}
+
+arch_initcall(ls1a_platform_init);
-- 
2.9.3

[PATCH v5 7/8] clk: Loongson: Add Loongson-1A clock support

[Binbin Zhou]

This patch adds clock support to Loongson-1A SoC

There is a workaround that Loongson-1A's PLL register is written only,
so we just set it with a fixed value.

Signed-off-by: Binbin Zhou <zhoubb@lemote.com>
Signed-off-by: HuaCai Chen <chenhc@lemote.com>
---
 arch/mips/include/asm/mach-loongson32/regs-clk.h | 30 +++++++++-
 drivers/clk/loongson1/Makefile                   |  1 +
 drivers/clk/loongson1/clk-loongson1a.c           | 75 ++++++++++++++++++++++++
 3 files changed, 105 insertions(+), 1 deletion(-)
 create mode 100644 drivers/clk/loongson1/clk-loongson1a.c

diff --git a/arch/mips/include/asm/mach-loongson32/regs-clk.h b/arch/mips/include/asm/mach-loongson32/regs-clk.h
index e5e8f11..d8278a4 100644
--- a/arch/mips/include/asm/mach-loongson32/regs-clk.h
+++ b/arch/mips/include/asm/mach-loongson32/regs-clk.h
@@ -18,7 +18,35 @@
 #define LS1X_CLK_PLL_FREQ		LS1X_CLK_REG(0x0)
 #define LS1X_CLK_PLL_DIV		LS1X_CLK_REG(0x4)
 
-#if defined(CONFIG_LOONGSON1_LS1B)
+#if defined(CONFIG_LOONGSON1_LS1A)
+/* write only */
+#define CORE_PLL_CFG		0x1fe78030
+#define CPU_MUL			GENMASK(2, 0)
+#define CPU_CFG_EN		BIT(3)
+#define DDR_MUL			GENMASK(6, 4)
+#define DDR_CFG_EN		BIT(7)
+#define CPU_CFG_W_EN		BIT(11)
+#define DDR_CFG_W_EN		BIT(15)
+
+#define VGA_PLL_CFG		0x1fd00410
+#define VGA_M			GENMASK(7, 0)
+#define VGA_N			GENMASK(11, 8)
+#define VGA_OD			GENMASK(13, 12)
+#define VGA_FRAC		GENMASK(31, 14)
+
+#define LCD_PLL_CFG		0x1fd00410
+#define LCD_M			GENMASK(7, 0)
+#define LCD_N			GENMASK(11, 8)
+#define LCD_OD			GENMASK(13, 12)
+#define LCD_FRAC		GENMASK(31, 14)
+
+#define GPU_PLL_CFG		0x1fd00414
+#define GPU_M			GENMASK(7, 0)
+#define GPU_N			GENMASK(11, 8)
+#define GPU_OD			GENMASK(13, 12)
+#define GPU_FRAC		GENMASK(31, 14)
+
+#elif defined(CONFIG_LOONGSON1_LS1B)
 /* Clock PLL Divisor Register Bits */
 #define DIV_DC_EN			BIT(31)
 #define DIV_DC_RST			BIT(30)
diff --git a/drivers/clk/loongson1/Makefile b/drivers/clk/loongson1/Makefile
index b7f6a16..da7b2dd 100644
--- a/drivers/clk/loongson1/Makefile
+++ b/drivers/clk/loongson1/Makefile
@@ -1,3 +1,4 @@
 obj-y				+= clk.o
+obj-$(CONFIG_LOONGSON1_LS1A)	+= clk-loongson1a.o
 obj-$(CONFIG_LOONGSON1_LS1B)	+= clk-loongson1b.o
 obj-$(CONFIG_LOONGSON1_LS1C)	+= clk-loongson1c.o
diff --git a/drivers/clk/loongson1/clk-loongson1a.c b/drivers/clk/loongson1/clk-loongson1a.c
new file mode 100644
index 0000000..263a82c
--- /dev/null
+++ b/drivers/clk/loongson1/clk-loongson1a.c
@@ -0,0 +1,75 @@
+/*
+ * Copyright (c) 2012-2016 Binbin Zhou <zhoubb@lemote.com>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/clkdev.h>
+#include <linux/clk-provider.h>
+#include <linux/io.h>
+#include <linux/err.h>
+
+#include <loongson1.h>
+#include "clk.h"
+
+#define OSC		(33 * 1000000)
+#define DIV_APB		2
+
+static DEFINE_SPINLOCK(_lock);
+
+static unsigned long ls1x_pll_recalc_rate(struct clk_hw *hw,
+					  unsigned long parent_rate)
+{
+	/* Workaround, loongson-1A pll register is written only */
+	return OSC * 8;
+}
+
+static const struct clk_ops ls1x_pll_clk_ops = {
+	.recalc_rate = ls1x_pll_recalc_rate,
+};
+
+void __init ls1x_clk_init(void)
+{
+	struct clk_hw *hw;
+
+	hw = clk_hw_register_fixed_rate(NULL, "osc_clk", NULL, 0, OSC);
+	clk_hw_register_clkdev(hw, "osc_clk", NULL);
+
+	/* clock from 33 MHz OSC clk */
+	hw = clk_hw_register_pll(NULL, "pll_clk", "osc_clk",
+				&ls1x_pll_clk_ops, 0);
+	clk_hw_register_clkdev(hw, "pll_clk", NULL);
+
+	/* cpu clk */
+	hw = clk_hw_register_fixed_factor(NULL, "cpu_clk", "pll_clk",
+					0, 1, 1);
+	clk_hw_register_clkdev(hw, "cpu_clk", NULL);
+
+	/* dc clk */
+	hw = clk_hw_register_fixed_factor(NULL, "ddr_clk", "pll_clk",
+					0, 1, 1);
+	clk_hw_register_clkdev(hw, "ddr_clk", NULL);
+
+	/* ahb clk */
+	hw = clk_hw_register_fixed_factor(NULL, "ahb_clk", "pll_clk",
+					0, 1, 2);
+	clk_hw_register_clkdev(hw, "ahb_clk", NULL);
+	clk_hw_register_clkdev(hw, "ls1x-dma", NULL);
+	clk_hw_register_clkdev(hw, "stmmaceth", NULL);
+
+	/* clock derived from AHB clk */
+	/* APB clk is always half of the AHB clk */
+	hw = clk_hw_register_fixed_factor(NULL, "apb_clk", "ahb_clk",
+					0, 1, DIV_APB);
+	clk_hw_register_clkdev(hw, "apb_clk", NULL);
+	clk_hw_register_clkdev(hw, "ls1x-ac97", NULL);
+	clk_hw_register_clkdev(hw, "ls1x-i2c", NULL);
+	clk_hw_register_clkdev(hw, "ls1x-nand", NULL);
+	clk_hw_register_clkdev(hw, "ls1x-pwmtimer", NULL);
+	clk_hw_register_clkdev(hw, "ls1x-spi", NULL);
+	clk_hw_register_clkdev(hw, "ls1x-wdt", NULL);
+	clk_hw_register_clkdev(hw, "serial8250", NULL);
+}
-- 
2.9.3

[PATCH v5 8/8] MIPS: Loongson: Add Loongson-1A default config file

[Binbin Zhou]

Signed-off-by: Binbin Zhou <zhoubb@lemote.com>
Signed-off-by: HuaCai Chen <chenhc@lemote.com>
---
 arch/mips/configs/loongson1a_defconfig | 131 +++++++++++++++++++++++++++++++++
 1 file changed, 131 insertions(+)
 create mode 100644 arch/mips/configs/loongson1a_defconfig

diff --git a/arch/mips/configs/loongson1a_defconfig b/arch/mips/configs/loongson1a_defconfig
new file mode 100644
index 0000000..be9a0cc
--- /dev/null
+++ b/arch/mips/configs/loongson1a_defconfig
@@ -0,0 +1,131 @@
+CONFIG_MACH_LOONGSON32=y
+CONFIG_ZONE_DMA=y
+CONFIG_PAGE_SIZE_16KB=y
+CONFIG_HIGHMEM=y
+CONFIG_HZ_1000=y
+CONFIG_PREEMPT_VOLUNTARY=y
+# CONFIG_SECCOMP is not set
+# CONFIG_LOCALVERSION_AUTO is not set
+CONFIG_SYSVIPC=y
+CONFIG_POSIX_MQUEUE=y
+CONFIG_HIGH_RES_TIMERS=y
+CONFIG_BSD_PROCESS_ACCT=y
+CONFIG_BSD_PROCESS_ACCT_V3=y
+CONFIG_IKCONFIG=y
+CONFIG_IKCONFIG_PROC=y
+CONFIG_LOG_BUF_SHIFT=16
+CONFIG_CGROUPS=y
+CONFIG_BLK_CGROUP=y
+CONFIG_CGROUP_SCHED=y
+CONFIG_CGROUP_FREEZER=y
+CONFIG_CPUSETS=y
+CONFIG_CGROUP_DEVICE=y
+CONFIG_EXPERT=y
+CONFIG_MODULES=y
+CONFIG_MODULE_UNLOAD=y
+CONFIG_MODVERSIONS=y
+# CONFIG_BLK_DEV_BSG is not set
+# CONFIG_IOSCHED_DEADLINE is not set
+# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
+# CONFIG_SUSPEND is not set
+CONFIG_NET=y
+CONFIG_PACKET=y
+CONFIG_UNIX=y
+CONFIG_INET=y
+CONFIG_IP_PNP=y
+CONFIG_IP_PNP_DHCP=y
+CONFIG_SYN_COOKIES=y
+# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
+# CONFIG_INET_XFRM_MODE_TUNNEL is not set
+# CONFIG_INET_XFRM_MODE_BEET is not set
+# CONFIG_INET_DIAG is not set
+# CONFIG_IPV6 is not set
+CONFIG_BRIDGE=y
+# CONFIG_BRIDGE_IGMP_SNOOPING is not set
+# CONFIG_WIRELESS is not set
+CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
+CONFIG_DEVTMPFS=y
+CONFIG_DEVTMPFS_MOUNT=y
+# CONFIG_STANDALONE is not set
+CONFIG_MTD=y
+CONFIG_MTD_CMDLINE_PARTS=y
+CONFIG_MTD_BLOCK=y
+CONFIG_NFTL=y
+CONFIG_NFTL_RW=y
+CONFIG_MTD_NAND=y
+CONFIG_MTD_SPI_NOR=y
+CONFIG_BLK_DEV_LOOP=y
+CONFIG_BLK_DEV_RAM=y
+# CONFIG_SCSI_PROC_FS is not set
+CONFIG_BLK_DEV_SD=y
+# CONFIG_SCSI_LOWLEVEL is not set
+CONFIG_ATA=y
+# CONFIG_SATA_PMP is not set
+CONFIG_SATA_AHCI_PLATFORM=y
+# CONFIG_ATA_SFF is not set
+CONFIG_NETDEVICES=y
+CONFIG_NETCONSOLE=y
+# CONFIG_NET_VENDOR_ARC is not set
+# CONFIG_NET_VENDOR_BROADCOM is not set
+# CONFIG_NET_VENDOR_INTEL is not set
+# CONFIG_NET_VENDOR_MARVELL is not set
+# CONFIG_NET_VENDOR_MICREL is not set
+# CONFIG_NET_VENDOR_NATSEMI is not set
+# CONFIG_NET_VENDOR_SAMSUNG is not set
+# CONFIG_NET_VENDOR_SEEQ is not set
+# CONFIG_NET_VENDOR_SMSC is not set
+CONFIG_STMMAC_ETH=y
+# CONFIG_NET_VENDOR_VIA is not set
+# CONFIG_NET_VENDOR_WIZNET is not set
+CONFIG_REALTEK_PHY=y
+# CONFIG_USB_NET_DRIVERS is not set
+# CONFIG_WLAN is not set
+# CONFIG_INPUT_MOUSEDEV is not set
+# CONFIG_INPUT_KEYBOARD is not set
+# CONFIG_INPUT_MOUSE is not set
+# CONFIG_SERIO is not set
+CONFIG_VT_HW_CONSOLE_BINDING=y
+CONFIG_LEGACY_PTY_COUNT=8
+CONFIG_SERIAL_8250=y
+CONFIG_SERIAL_8250_CONSOLE=y
+# CONFIG_HW_RANDOM is not set
+CONFIG_I2C=y
+CONFIG_SPI=y
+# CONFIG_HWMON is not set
+CONFIG_WATCHDOG=y
+# CONFIG_VGA_CONSOLE is not set
+CONFIG_USB=y
+CONFIG_USB_MON=y
+CONFIG_USB_XHCI_HCD=m
+CONFIG_USB_EHCI_HCD=y
+CONFIG_USB_EHCI_HCD_PLATFORM=y
+CONFIG_USB_OHCI_HCD=y
+CONFIG_USB_OHCI_HCD_PLATFORM=y
+CONFIG_USB_STORAGE=m
+CONFIG_USB_GADGET=y
+CONFIG_RTC_CLASS=y
+CONFIG_RTC_DRV_PCF8563=y
+# CONFIG_IOMMU_SUPPORT is not set
+CONFIG_EXT2_FS=y
+CONFIG_EXT2_FS_XATTR=y
+CONFIG_EXT2_FS_POSIX_ACL=y
+CONFIG_EXT2_FS_SECURITY=y
+CONFIG_EXT3_FS=y
+CONFIG_EXT3_FS_POSIX_ACL=y
+CONFIG_EXT3_FS_SECURITY=y
+# CONFIG_DNOTIFY is not set
+CONFIG_VFAT_FS=y
+CONFIG_PROC_KCORE=y
+CONFIG_TMPFS=y
+CONFIG_TMPFS_POSIX_ACL=y
+# CONFIG_MISC_FILESYSTEMS is not set
+# CONFIG_NETWORK_FILESYSTEMS is not set
+CONFIG_NLS_CODEPAGE_437=y
+CONFIG_NLS_ISO8859_1=y
+CONFIG_PRINTK_TIME=y
+# CONFIG_ENABLE_WARN_DEPRECATED is not set
+# CONFIG_ENABLE_MUST_CHECK is not set
+CONFIG_MAGIC_SYSRQ=y
+# CONFIG_SCHED_DEBUG is not set
+# CONFIG_FTRACE is not set
+CONFIG_XZ_DEC=y
-- 
2.9.3

Re: [PATCH v5 0/8] MIPS: Loongson: Add the Loongson-1A processor support

[James Hogan]

[-- Attachment #1: Type: text/plain, Size: 4058 bytes --]

Hi,

On Wed, Feb 08, 2017 at 09:57:41AM +0800, Binbin Zhou wrote:
> The Loongson-1A CPU is similar with Loongson-1B/1C, which is a 32-bit SoC.
> 
> It is a cost-effective single chip system based on LS232 processor core,
> and is applicable to fields such as industrial control, and security applications.
> 
> It implements the MIPS32 release 2 instruction set.
> 
> They share the same PRID, so we rewrite them into PRID_REV_LOONGSON1ABC,
> and use their CPU macros to distinguish.
> 
> Changes since v1:
> 
> 1. According commit c908656a7531771ae7642990a7c5f3c7307bd612
>    (MIPS: Loongson: Naming style cleanup and rework) to fix the naming style.
> 
> Changes since v2:
> 
> 1. Remove __irq_set_handler_locked()
> 2. Rebases on top of v4.5-rc5.
> 
> Changes since v3:
> 
> 1. Rename the Loongson-1 series's PRID name
> 2. Rewite Loongson-1A's clk driver
> 2. Rebases on top of v4.10-rc2.
> 
> Changes since v4:
> 
> 1. Fix some commit message error

Please can you look back at review comments from previous revisions, as
most of them seem to be unaddressed & unanswered unless I'm missing
something, and the common clock framework maintainers still aren't Cc'd
on the relevant patches.

Regarding switching to devicetree, note that it can usually be done
incrementally and without any boot ABI changes by embedding the
flattened devicetree(s) in the kernel.

Cheers
James

> 
> Binbin Zhou(8):
>  MIPS: Loongson: Merge PRID macro for Loongson-1A/1B/1C
>  MIPS: Loongson: Expand Loongson-1's register definition
>  MIPS: Loongson: Add basic Loongson-1A CPU support
>  MIPS: Loongson: Add Loongson-1A Kconfig options
>  MIPS: Loongson: Add platform devices for Loongson-1A
>  MIPS: Loongson: Add Loongson-1A board support
>  clk: Loongson: Add Loongson-1A clock support
>  MIPS: Loongson: Add Loongson-1A default config file
> 
> Signed-off-by: Binbin Zhou <zhoubb@lemote.com>
> Signed-off-by: Huacai Chen <chenhc@lemote.com>
> -- 
>  arch/mips/Kconfig                                 |  12 +++++++++
>  arch/mips/configs/loongson1a_defconfig            | 131 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
>  arch/mips/include/asm/cpu-type.h                  |   3 ++-
>  arch/mips/include/asm/cpu.h                       |   3 +--
>  arch/mips/include/asm/mach-loongson32/irq.h       |  16 ++++++++----
>  arch/mips/include/asm/mach-loongson32/loongson1.h | 172 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++---------------------
>  arch/mips/include/asm/mach-loongson32/platform.h  |   2 ++
>  arch/mips/include/asm/mach-loongson32/regs-clk.h  |  30 ++++++++++++++++++++-
>  arch/mips/include/asm/mach-loongson32/regs-mux.h  |  36 ++++++++++++++++++++++++-
>  arch/mips/kernel/cpu-probe.c                      |   6 ++++-
>  arch/mips/loongson32/Kconfig                      |  20 ++++++++++++++
>  arch/mips/loongson32/Makefile                     |   6 +++++
>  arch/mips/loongson32/Platform                     |   1 +
>  arch/mips/loongson32/common/irq.c                 |   2 +-
>  arch/mips/loongson32/common/platform.c            |  83 ++++++++++++++++++++++++++++++++++++++++++++++++----------
>  arch/mips/loongson32/common/setup.c               |   6 +++--
>  arch/mips/loongson32/ls1a/Makefile                |   5 ++++
>  arch/mips/loongson32/ls1a/board.c                 |  31 ++++++++++++++++++++++
>  arch/mips/mm/c-r4k.c                              |  10 +++++++
>  drivers/clk/loongson1/Makefile                    |   1 +
>  drivers/clk/loongson1/clk-loongson1a.c            |  75 ++++++++++++++++++++++++++++++++++++++++++++++++++++
>  21 files changed, 593 insertions(+), 58 deletions(-)
>  create mode 100644 arch/mips/configs/loongson1a_defconfig
>  create mode 100644 arch/mips/loongson32/ls1a/Makefile
>  create mode 100644 arch/mips/loongson32/ls1a/board.c
>  create mode 100644 drivers/clk/loongson1/clk-loongson1a.c
> --
> 1.9.0
> 
> 

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Re: [PATCH v5 0/8] MIPS: Loongson: Add the Loongson-1A processor support

[James Hogan]

[-- Attachment #1: Type: text/plain, Size: 4058 bytes --]

Hi,

On Wed, Feb 08, 2017 at 09:57:41AM +0800, Binbin Zhou wrote:
> The Loongson-1A CPU is similar with Loongson-1B/1C, which is a 32-bit SoC.
> 
> It is a cost-effective single chip system based on LS232 processor core,
> and is applicable to fields such as industrial control, and security applications.
> 
> It implements the MIPS32 release 2 instruction set.
> 
> They share the same PRID, so we rewrite them into PRID_REV_LOONGSON1ABC,
> and use their CPU macros to distinguish.
> 
> Changes since v1:
> 
> 1. According commit c908656a7531771ae7642990a7c5f3c7307bd612
>    (MIPS: Loongson: Naming style cleanup and rework) to fix the naming style.
> 
> Changes since v2:
> 
> 1. Remove __irq_set_handler_locked()
> 2. Rebases on top of v4.5-rc5.
> 
> Changes since v3:
> 
> 1. Rename the Loongson-1 series's PRID name
> 2. Rewite Loongson-1A's clk driver
> 2. Rebases on top of v4.10-rc2.
> 
> Changes since v4:
> 
> 1. Fix some commit message error

Please can you look back at review comments from previous revisions, as
most of them seem to be unaddressed & unanswered unless I'm missing
something, and the common clock framework maintainers still aren't Cc'd
on the relevant patches.

Regarding switching to devicetree, note that it can usually be done
incrementally and without any boot ABI changes by embedding the
flattened devicetree(s) in the kernel.

Cheers
James

> 
> Binbin Zhou(8):
>  MIPS: Loongson: Merge PRID macro for Loongson-1A/1B/1C
>  MIPS: Loongson: Expand Loongson-1's register definition
>  MIPS: Loongson: Add basic Loongson-1A CPU support
>  MIPS: Loongson: Add Loongson-1A Kconfig options
>  MIPS: Loongson: Add platform devices for Loongson-1A
>  MIPS: Loongson: Add Loongson-1A board support
>  clk: Loongson: Add Loongson-1A clock support
>  MIPS: Loongson: Add Loongson-1A default config file
> 
> Signed-off-by: Binbin Zhou <zhoubb@lemote.com>
> Signed-off-by: Huacai Chen <chenhc@lemote.com>
> -- 
>  arch/mips/Kconfig                                 |  12 +++++++++
>  arch/mips/configs/loongson1a_defconfig            | 131 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
>  arch/mips/include/asm/cpu-type.h                  |   3 ++-
>  arch/mips/include/asm/cpu.h                       |   3 +--
>  arch/mips/include/asm/mach-loongson32/irq.h       |  16 ++++++++----
>  arch/mips/include/asm/mach-loongson32/loongson1.h | 172 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++---------------------
>  arch/mips/include/asm/mach-loongson32/platform.h  |   2 ++
>  arch/mips/include/asm/mach-loongson32/regs-clk.h  |  30 ++++++++++++++++++++-
>  arch/mips/include/asm/mach-loongson32/regs-mux.h  |  36 ++++++++++++++++++++++++-
>  arch/mips/kernel/cpu-probe.c                      |   6 ++++-
>  arch/mips/loongson32/Kconfig                      |  20 ++++++++++++++
>  arch/mips/loongson32/Makefile                     |   6 +++++
>  arch/mips/loongson32/Platform                     |   1 +
>  arch/mips/loongson32/common/irq.c                 |   2 +-
>  arch/mips/loongson32/common/platform.c            |  83 ++++++++++++++++++++++++++++++++++++++++++++++++----------
>  arch/mips/loongson32/common/setup.c               |   6 +++--
>  arch/mips/loongson32/ls1a/Makefile                |   5 ++++
>  arch/mips/loongson32/ls1a/board.c                 |  31 ++++++++++++++++++++++
>  arch/mips/mm/c-r4k.c                              |  10 +++++++
>  drivers/clk/loongson1/Makefile                    |   1 +
>  drivers/clk/loongson1/clk-loongson1a.c            |  75 ++++++++++++++++++++++++++++++++++++++++++++++++++++
>  21 files changed, 593 insertions(+), 58 deletions(-)
>  create mode 100644 arch/mips/configs/loongson1a_defconfig
>  create mode 100644 arch/mips/loongson32/ls1a/Makefile
>  create mode 100644 arch/mips/loongson32/ls1a/board.c
>  create mode 100644 drivers/clk/loongson1/clk-loongson1a.c
> --
> 1.9.0
> 
> 

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Re: [PATCH v5 0/8] MIPS: Loongson: Add the Loongson-1A processor support

[Aaron Chou]

Hi, James:

I appreciate your advis！

On Mon, Feb 13, 2017 at 11:20 PM, James Hogan <james.hogan@imgtec.com> wrote:
> Hi,
>
> On Wed, Feb 08, 2017 at 09:57:41AM +0800, Binbin Zhou wrote:
>> The Loongson-1A CPU is similar with Loongson-1B/1C, which is a 32-bit SoC.
>>
>> It is a cost-effective single chip system based on LS232 processor core,
>> and is applicable to fields such as industrial control, and security applications.
>>
>> It implements the MIPS32 release 2 instruction set.
>>
>> They share the same PRID, so we rewrite them into PRID_REV_LOONGSON1ABC,
>> and use their CPU macros to distinguish.
>>
>> Changes since v1:
>>
>> 1. According commit c908656a7531771ae7642990a7c5f3c7307bd612
>>    (MIPS: Loongson: Naming style cleanup and rework) to fix the naming style.
>>
>> Changes since v2:
>>
>> 1. Remove __irq_set_handler_locked()
>> 2. Rebases on top of v4.5-rc5.
>>
>> Changes since v3:
>>
>> 1. Rename the Loongson-1 series's PRID name
>> 2. Rewite Loongson-1A's clk driver
>> 2. Rebases on top of v4.10-rc2.
>>
>> Changes since v4:
>>
>> 1. Fix some commit message error
>
> Please can you look back at review comments from previous revisions, as
> most of them seem to be unaddressed & unanswered unless I'm missing
> something, and the common clock framework maintainers still aren't Cc'd
> on the relevant patches.

It's my falut .I will review the comments once again .
And, the relevant people I thought needed have been added. For
example, the Loongson-1B/1C patches' authors.
The common clock framework maintainers will be cc'd in my resend series patch.

>
> Regarding switching to devicetree, note that it can usually be done
> incrementally and without any boot ABI changes by embedding the
> flattened devicetree(s) in the kernel.
>
Due to historic reasons, devicetree is not supported on Loongson-1 platform.
I think it should be improved step by step !

Overall, I will resend the series patch,.plesase review it again.

THS

Cheers
BinBin Zhou


> Cheers
> James
>
>>
>> Binbin Zhou(8):
>>  MIPS: Loongson: Merge PRID macro for Loongson-1A/1B/1C
>>  MIPS: Loongson: Expand Loongson-1's register definition
>>  MIPS: Loongson: Add basic Loongson-1A CPU support
>>  MIPS: Loongson: Add Loongson-1A Kconfig options
>>  MIPS: Loongson: Add platform devices for Loongson-1A
>>  MIPS: Loongson: Add Loongson-1A board support
>>  clk: Loongson: Add Loongson-1A clock support
>>  MIPS: Loongson: Add Loongson-1A default config file
>>
>> Signed-off-by: Binbin Zhou <zhoubb@lemote.com>
>> Signed-off-by: Huacai Chen <chenhc@lemote.com>
>> --
>>  arch/mips/Kconfig                                 |  12 +++++++++
>>  arch/mips/configs/loongson1a_defconfig            | 131 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
>>  arch/mips/include/asm/cpu-type.h                  |   3 ++-
>>  arch/mips/include/asm/cpu.h                       |   3 +--
>>  arch/mips/include/asm/mach-loongson32/irq.h       |  16 ++++++++----
>>  arch/mips/include/asm/mach-loongson32/loongson1.h | 172 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++---------------------
>>  arch/mips/include/asm/mach-loongson32/platform.h  |   2 ++
>>  arch/mips/include/asm/mach-loongson32/regs-clk.h  |  30 ++++++++++++++++++++-
>>  arch/mips/include/asm/mach-loongson32/regs-mux.h  |  36 ++++++++++++++++++++++++-
>>  arch/mips/kernel/cpu-probe.c                      |   6 ++++-
>>  arch/mips/loongson32/Kconfig                      |  20 ++++++++++++++
>>  arch/mips/loongson32/Makefile                     |   6 +++++
>>  arch/mips/loongson32/Platform                     |   1 +
>>  arch/mips/loongson32/common/irq.c                 |   2 +-
>>  arch/mips/loongson32/common/platform.c            |  83 ++++++++++++++++++++++++++++++++++++++++++++++++----------
>>  arch/mips/loongson32/common/setup.c               |   6 +++--
>>  arch/mips/loongson32/ls1a/Makefile                |   5 ++++
>>  arch/mips/loongson32/ls1a/board.c                 |  31 ++++++++++++++++++++++
>>  arch/mips/mm/c-r4k.c                              |  10 +++++++
>>  drivers/clk/loongson1/Makefile                    |   1 +
>>  drivers/clk/loongson1/clk-loongson1a.c            |  75 ++++++++++++++++++++++++++++++++++++++++++++++++++++
>>  21 files changed, 593 insertions(+), 58 deletions(-)
>>  create mode 100644 arch/mips/configs/loongson1a_defconfig
>>  create mode 100644 arch/mips/loongson32/ls1a/Makefile
>>  create mode 100644 arch/mips/loongson32/ls1a/board.c
>>  create mode 100644 drivers/clk/loongson1/clk-loongson1a.c
>> --
>> 1.9.0
>>
>>