[U-Boot] [PATCH v2 04/14] arm: socfpga: stratix10: Add pinmux support for Stratix10 SoC

[chin.liang.see at intel.com <chin.liang.see@intel.com>]

From: Chin Liang See <chin.liang.see@intel.com>

Add pinmux driver support for Stratix SoC

Signed-off-by: Chin Liang See <chin.liang.see@intel.com>
---
 arch/arm/mach-socfpga/Makefile                     |   2 +
 .../arm/mach-socfpga/include/mach/system_manager.h |   5 +-
 .../mach-socfpga/include/mach/system_manager_s10.h | 169 +++++++++++++++++++++
 arch/arm/mach-socfpga/system_manager_s10.c         |  91 +++++++++++
 arch/arm/mach-socfpga/wrap_pinmux_config_s10.c     |  55 +++++++
 5 files changed, 321 insertions(+), 1 deletion(-)
 create mode 100644 arch/arm/mach-socfpga/include/mach/system_manager_s10.h
 create mode 100644 arch/arm/mach-socfpga/system_manager_s10.c
 create mode 100644 arch/arm/mach-socfpga/wrap_pinmux_config_s10.c

diff --git a/arch/arm/mach-socfpga/Makefile b/arch/arm/mach-socfpga/Makefile
index f10b05c..910eb6f 100644
--- a/arch/arm/mach-socfpga/Makefile
+++ b/arch/arm/mach-socfpga/Makefile
@@ -33,6 +33,8 @@ endif
 ifdef CONFIG_TARGET_SOCFPGA_STRATIX10
 obj-y	+= clock_manager_s10.o
 obj-y	+= reset_manager_s10.o
+obj-y	+= system_manager_s10.o
+obj-y	+= wrap_pinmux_config_s10.o
 obj-y	+= wrap_pll_config_s10.o
 endif
 ifdef CONFIG_SPL_BUILD
diff --git a/arch/arm/mach-socfpga/include/mach/system_manager.h b/arch/arm/mach-socfpga/include/mach/system_manager.h
index e6d4280..80c7d0b 100644
--- a/arch/arm/mach-socfpga/include/mach/system_manager.h
+++ b/arch/arm/mach-socfpga/include/mach/system_manager.h
@@ -7,6 +7,9 @@
 #ifndef _SYSTEM_MANAGER_H_
 #define _SYSTEM_MANAGER_H_
 
+#if defined(CONFIG_TARGET_SOCFPGA_STRATIX10)
+#include <asm/arch/system_manager_s10.h>
+#else
 #define SYSMGR_ROMCODEGRP_CTRL_WARMRSTCFGPINMUX	BIT(0)
 #define SYSMGR_ROMCODEGRP_CTRL_WARMRSTCFGIO	BIT(1)
 #define SYSMGR_ECC_OCRAM_EN	BIT(0)
@@ -89,5 +92,5 @@
 
 #define SYSMGR_GET_BOOTINFO_BSEL(bsel)		\
 		(((bsel) >> SYSMGR_BOOTINFO_BSEL_SHIFT) & 7)
-
+#endif
 #endif /* _SYSTEM_MANAGER_H_ */
diff --git a/arch/arm/mach-socfpga/include/mach/system_manager_s10.h b/arch/arm/mach-socfpga/include/mach/system_manager_s10.h
new file mode 100644
index 0000000..d992072
--- /dev/null
+++ b/arch/arm/mach-socfpga/include/mach/system_manager_s10.h
@@ -0,0 +1,169 @@
+/*
+ * Copyright (C) 2016-2017 Intel Corporation <www.intel.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0
+ */
+
+#ifndef	_SYSTEM_MANAGER_S10_
+#define	_SYSTEM_MANAGER_S10_
+
+void sysmgr_pinmux_init(void);
+void populate_sysmgr_fpgaintf_module(void);
+void populate_sysmgr_pinmux(void);
+void sysmgr_pinmux_table_sel(const u32 **table, unsigned int *table_len);
+void sysmgr_pinmux_table_ctrl(const u32 **table, unsigned int *table_len);
+void sysmgr_pinmux_table_fpga(const u32 **table, unsigned int *table_len);
+void sysmgr_pinmux_table_delay(const u32 **table, unsigned int *table_len);
+
+struct socfpga_system_manager {
+	/* System Manager Module */
+	u32	siliconid1;			/* 0x00 */
+	u32	siliconid2;
+	u32	wddbg;
+	u32	_pad_0xc;
+	u32	mpu_status;			/* 0x10 */
+	u32	mpu_ace;
+	u32	_pad_0x18_0x1c[2];
+	u32	dma;				/* 0x20 */
+	u32	dma_periph;
+	/* SDMMC Controller Group */
+	u32	sdmmcgrp_ctrl;
+	u32	sdmmcgrp_l3master;
+	/* NAND Flash Controller Register Group */
+	u32	nandgrp_bootstrap;		/* 0x30 */
+	u32	nandgrp_l3master;
+	/* USB Controller Group */
+	u32	usb0_l3master;
+	u32	usb1_l3master;
+	/* EMAC Group */
+	u32	emac_gbl;			/* 0x40 */
+	u32	emac0;
+	u32	emac1;
+	u32	emac2;
+	u32	emac0_ace;			/* 0x50 */
+	u32	emac1_ace;
+	u32	emac2_ace;
+	u32	nand_axuser;
+	u32	_pad_0x60_0x64[2];		/* 0x60 */
+	/* FPGA interface Group */
+	u32	fpgaintf_en_1;
+	u32	fpgaintf_en_2;
+	u32	fpgaintf_en_3;			/* 0x70 */
+	u32	dma_l3master;
+	u32	etr_l3master;
+	u32	_pad_0x7c;
+	u32	sec_ctrl_slt;			/* 0x80 */
+	u32	osc_trim;
+	u32	_pad_0x88_0x8c[2];
+	/* ECC Group */
+	u32	ecc_intmask_value;		/* 0x90 */
+	u32	ecc_intmask_set;
+	u32	ecc_intmask_clr;
+	u32	ecc_intstatus_serr;
+	u32	ecc_intstatus_derr;		/* 0xa0 */
+	u32	_pad_0xa4_0xac[3];
+	u32	noc_addr_remap;			/* 0xb0 */
+	u32	hmc_clk;
+	u32	io_pa_ctrl;
+	u32	_pad_0xbc;
+	/* NOC Group */
+	u32	noc_timeout;			/* 0xc0 */
+	u32	noc_idlereq_set;
+	u32	noc_idlereq_clr;
+	u32	noc_idlereq_value;
+	u32	noc_idleack;			/* 0xd0 */
+	u32	noc_idlestatus;
+	u32	fpga2soc_ctrl;
+	u32	fpga_config;
+	u32	iocsrclk_gate;			/* 0xe0 */
+	u32	gpo;
+	u32	gpi;
+	u32	_pad_0xec;
+	u32	mpu;				/* 0xf0 */
+	u32	sdm_hps_spare;
+	u32	hps_sdm_spare;
+	u32	_pad_0xfc_0x1fc[65];
+	/* Boot scratch register group */
+	u32	boot_scratch_cold0;		/* 0x200 */
+	u32	boot_scratch_cold1;
+	u32	boot_scratch_cold2;
+	u32	boot_scratch_cold3;
+	u32	boot_scratch_cold4;		/* 0x210 */
+	u32	boot_scratch_cold5;
+	u32	boot_scratch_cold6;
+	u32	boot_scratch_cold7;
+	u32	boot_scratch_cold8;		/* 0x220 */
+	u32	boot_scratch_cold9;
+	u32	_pad_0x228_0xffc[886];
+	/* Pin select and pin control group */
+	u32	pinsel0[40];			/* 0x1000 */
+	u32	_pad_0x10a0_0x10fc[24];
+	u32	pinsel40[8];
+	u32	_pad_0x1120_0x112c[4];
+	u32	ioctrl0[28];
+	u32	_pad_0x11a0_0x11fc[24];
+	u32	ioctrl28[20];
+	u32	_pad_0x1250_0x12fc[44];
+	/* Use FPGA mux */
+	u32	rgmii0usefpga;			/* 0x1300 */
+	u32	rgmii1usefpga;
+	u32	rgmii2usefpga;
+	u32	i2c0usefpga;
+	u32	i2c1usefpga;
+	u32	i2c_emac0_usefpga;
+	u32	i2c_emac1_usefpga;
+	u32	i2c_emac2_usefpga;
+	u32	nandusefpga;
+	u32	_pad_0x1324;
+	u32	spim0usefpga;
+	u32	spim1usefpga;
+	u32	spis0usefpga;
+	u32	spis1usefpga;
+	u32	uart0usefpga;
+	u32	uart1usefpga;
+	u32	mdio0usefpga;
+	u32	mdio1usefpga;
+	u32	mdio2usefpga;
+	u32	_pad_0x134c;
+	u32	jtagusefpga;
+	u32	sdmmcusefpga;
+	u32	hps_osc_clk;
+	u32	_pad_0x135c_0x13fc[41];
+	u32	iodelay0[40];
+	u32	_pad_0x14a0_0x14fc[24];
+	u32	iodelay40[8];
+
+};
+
+#define SYSMGR_ROMCODEGRP_CTRL_WARMRSTCFGPINMUX	(1 << 0)
+#define SYSMGR_ROMCODEGRP_CTRL_WARMRSTCFGIO	(1 << 1)
+#define SYSMGR_ECC_OCRAM_EN	(1 << 0)
+#define SYSMGR_ECC_OCRAM_SERR	(1 << 3)
+#define SYSMGR_ECC_OCRAM_DERR	(1 << 4)
+#define SYSMGR_FPGAINTF_USEFPGA	0x1
+
+#define SYSMGR_FPGAINTF_NAND	(1 << 4)
+#define SYSMGR_FPGAINTF_SDMMC	(1 << 8)
+#define SYSMGR_FPGAINTF_SPIM0	(1 << 16)
+#define SYSMGR_FPGAINTF_SPIM1	(1 << 24)
+#define SYSMGR_FPGAINTF_EMAC0	(0x11 << 0)
+#define SYSMGR_FPGAINTF_EMAC1	(0x11 << 8)
+#define SYSMGR_FPGAINTF_EMAC2	(0x11 << 16)
+
+#define SYSMGR_SDMMC_SMPLSEL_SHIFT	4
+#define SYSMGR_SDMMC_DRVSEL_SHIFT	0
+
+/* EMAC Group Bit definitions */
+#define SYSMGR_EMACGRP_CTRL_PHYSEL_ENUM_GMII_MII	0x0
+#define SYSMGR_EMACGRP_CTRL_PHYSEL_ENUM_RGMII		0x1
+#define SYSMGR_EMACGRP_CTRL_PHYSEL_ENUM_RMII		0x2
+
+#define SYSMGR_EMACGRP_CTRL_PHYSEL0_LSB			0
+#define SYSMGR_EMACGRP_CTRL_PHYSEL1_LSB			2
+#define SYSMGR_EMACGRP_CTRL_PHYSEL_MASK			0x3
+
+#define SYSMGR_NOC_H2F_MSK		0x00000001
+#define SYSMGR_NOC_LWH2F_MSK		0x00000010
+#define SYSMGR_HMC_CLK_STATUS_MSK	0x00000001
+
+#endif /* _SYSTEM_MANAGER_S10_ */
diff --git a/arch/arm/mach-socfpga/system_manager_s10.c b/arch/arm/mach-socfpga/system_manager_s10.c
new file mode 100644
index 0000000..8c7a715
--- /dev/null
+++ b/arch/arm/mach-socfpga/system_manager_s10.c
@@ -0,0 +1,91 @@
+/*
+ * Copyright (C) 2016-2017 Intel Corporation <www.intel.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/arch/system_manager.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static struct socfpga_system_manager *sysmgr_regs =
+	(struct socfpga_system_manager *)SOCFPGA_SYSMGR_ADDRESS;
+
+/*
+ * Configure all the pin muxes
+ */
+void sysmgr_pinmux_init(void)
+{
+	populate_sysmgr_pinmux();
+	populate_sysmgr_fpgaintf_module();
+}
+
+/*
+ * Populate the value for SYSMGR.FPGAINTF.MODULE based on pinmux setting.
+ * The value is not wrote to SYSMGR.FPGAINTF.MODULE but
+ * CONFIG_SYSMGR_ISWGRP_HANDOFF.
+ */
+void populate_sysmgr_fpgaintf_module(void)
+{
+	uint32_t handoff_val = 0;
+
+	/* Enable the signal for those HPS peripherals that use FPGA. */
+	if (readl(&sysmgr_regs->nandusefpga) == SYSMGR_FPGAINTF_USEFPGA)
+		handoff_val |= SYSMGR_FPGAINTF_NAND;
+	if (readl(&sysmgr_regs->sdmmcusefpga) == SYSMGR_FPGAINTF_USEFPGA)
+		handoff_val |= SYSMGR_FPGAINTF_SDMMC;
+	if (readl(&sysmgr_regs->spim0usefpga) == SYSMGR_FPGAINTF_USEFPGA)
+		handoff_val |= SYSMGR_FPGAINTF_SPIM0;
+	if (readl(&sysmgr_regs->spim1usefpga) == SYSMGR_FPGAINTF_USEFPGA)
+		handoff_val |= SYSMGR_FPGAINTF_SPIM1;
+	writel(handoff_val, &sysmgr_regs->fpgaintf_en_2);
+
+	handoff_val = 0;
+	if (readl(&sysmgr_regs->rgmii0usefpga) == SYSMGR_FPGAINTF_USEFPGA)
+		handoff_val |= SYSMGR_FPGAINTF_EMAC0;
+	if (readl(&sysmgr_regs->rgmii1usefpga) == SYSMGR_FPGAINTF_USEFPGA)
+		handoff_val |= SYSMGR_FPGAINTF_EMAC1;
+	if (readl(&sysmgr_regs->rgmii2usefpga) == SYSMGR_FPGAINTF_USEFPGA)
+		handoff_val |= SYSMGR_FPGAINTF_EMAC2;
+	writel(handoff_val, &sysmgr_regs->fpgaintf_en_3);
+}
+
+/*
+ * Configure all the pin muxes
+ */
+void populate_sysmgr_pinmux(void)
+{
+	const u32 *sys_mgr_table_u32;
+	unsigned int len, i;
+
+	/* setup the pin sel */
+	sysmgr_pinmux_table_sel(&sys_mgr_table_u32, &len);
+	for (i = 0; i < len; i = i+2) {
+		writel(sys_mgr_table_u32[i+1],
+		       sys_mgr_table_u32[i] + (u8 *)&sysmgr_regs->pinsel0[0]);
+	}
+
+	/* setup the pin ctrl */
+	sysmgr_pinmux_table_ctrl(&sys_mgr_table_u32, &len);
+	for (i = 0; i < len; i = i+2) {
+		writel(sys_mgr_table_u32[i+1],
+		       sys_mgr_table_u32[i] + (u8 *)&sysmgr_regs->ioctrl0[0]);
+	}
+
+	/* setup the fpga use */
+	sysmgr_pinmux_table_fpga(&sys_mgr_table_u32, &len);
+	for (i = 0; i < len; i = i+2) {
+		writel(sys_mgr_table_u32[i+1],
+		       sys_mgr_table_u32[i] +
+		       (u8 *)&sysmgr_regs->rgmii0usefpga);
+	}
+
+	/* setup the IO delay */
+	sysmgr_pinmux_table_delay(&sys_mgr_table_u32, &len);
+	for (i = 0; i < len; i = i+2) {
+		writel(sys_mgr_table_u32[i+1],
+		       sys_mgr_table_u32[i] + (u8 *)&sysmgr_regs->iodelay0[0]);
+	}
+}
diff --git a/arch/arm/mach-socfpga/wrap_pinmux_config_s10.c b/arch/arm/mach-socfpga/wrap_pinmux_config_s10.c
new file mode 100644
index 0000000..b6a9f68
--- /dev/null
+++ b/arch/arm/mach-socfpga/wrap_pinmux_config_s10.c
@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 2016-2017 Intel Corporation <www.intel.com>
+ *
+ * SPDX-License-Identifier:    GPL-2.0
+ */
+
+#include <common.h>
+#include <errno.h>
+#include <asm/io.h>
+#include <asm/arch/handoff_s10.h>
+
+static void sysmgr_pinmux_handoff_read(void *handoff_address,
+				const u32 **table, unsigned int *table_len)
+{
+	unsigned int handoff_entry = (swab32(readl(handoff_address +
+					CONFIG_HANDOFF_OFFSET_LENGTH)) -
+					CONFIG_HANDOFF_OFFSET_DATA) /
+					sizeof(unsigned int);
+	unsigned int handoff_chunk[handoff_entry], temp, i;
+
+	if (swab32(readl(CONFIG_HANDOFF_MUX)) == CONFIG_HANDOFF_MAGIC_MUX) {
+		/* using handoff from Quartus tools if exists */
+		for (i = 0; i < handoff_entry; i++) {
+			temp = readl(handoff_address +
+				     CONFIG_HANDOFF_OFFSET_DATA + (i * 4));
+			handoff_chunk[i] = swab32(temp);
+		}
+		*table = handoff_chunk;
+		*table_len = ARRAY_SIZE(handoff_chunk);
+	}
+}
+
+void sysmgr_pinmux_table_sel(const u32 **table, unsigned int *table_len)
+{
+	sysmgr_pinmux_handoff_read((void *)CONFIG_HANDOFF_MUX, table,
+				   table_len);
+}
+
+void sysmgr_pinmux_table_ctrl(const u32 **table, unsigned int *table_len)
+{
+	sysmgr_pinmux_handoff_read((void *)CONFIG_HANDOFF_IOCTL, table,
+				   table_len);
+}
+
+void sysmgr_pinmux_table_fpga(const u32 **table, unsigned int *table_len)
+{
+	sysmgr_pinmux_handoff_read((void *)CONFIG_HANDOFF_FPGA, table,
+				   table_len);
+}
+
+void sysmgr_pinmux_table_delay(const u32 **table, unsigned int *table_len)
+{
+	sysmgr_pinmux_handoff_read((void *)CONFIG_HANODFF_DELAY, table,
+				   table_len);
+}
-- 
2.2.2