[U-Boot] [PATCH 19/19] arm: socfpga: Enable SPL loading U-boot to DDR and booting U-boot

[tien.fong.chee at intel.com <tien.fong.chee@intel.com>]

From: Tien Fong Chee <tien.fong.chee@intel.com>

Enable SPL loading U-boot from SDMMC to DDR and booting U-boot.

Signed-off-by: Tien Fong Chee <tien.fong.chee@intel.com>
---
 arch/arm/mach-socfpga/spl.c       |   87 +++++++++++++++++++++++++++++++++++++
 common/spl/spl_mmc.c              |    2 +-
 configs/socfpga_arria10_defconfig |   49 ++++++++++++++++++++-
 disk/part.c                       |    2 +
 include/spl.h                     |    2 +
 5 files changed, 139 insertions(+), 3 deletions(-)

diff --git a/arch/arm/mach-socfpga/spl.c b/arch/arm/mach-socfpga/spl.c
index aba116d..555a848 100644
--- a/arch/arm/mach-socfpga/spl.c
+++ b/arch/arm/mach-socfpga/spl.c
@@ -15,6 +15,7 @@
 #include <asm/arch/system_manager.h>
 #include <asm/arch/freeze_controller.h>
 #include <asm/arch/clock_manager.h>
+#include <asm/arch/fpga_manager.h>
 #include <asm/arch/misc.h>
 #include <asm/arch/scan_manager.h>
 #include <asm/arch/sdram.h>
@@ -22,6 +23,10 @@
 #include <asm/arch/nic301.h>
 #include <asm/sections.h>
 #include <fdtdec.h>
+#include <fat.h>
+#include <fs.h>
+#include <linux/ctype.h>
+#include <mmc.h>
 #include <watchdog.h>
 #if defined(CONFIG_TARGET_SOCFPGA_ARRIA10)
 #include <asm/arch/pinmux.h>
@@ -29,6 +34,9 @@
 
 DECLARE_GLOBAL_DATA_PTR;
 
+#define BSIZE	4096
+#define PERIPH_RBF	0
+
 #if defined(CONFIG_TARGET_SOCFPGA_GEN5)
 static struct pl310_regs *const pl310 =
 	(struct pl310_regs *)CONFIG_SYS_PL310_BASE;
@@ -197,6 +205,11 @@ void board_init_f(ulong dummy)
 #elif defined(CONFIG_TARGET_SOCFPGA_ARRIA10)
 void spl_board_init(void)
 {
+	int rval = 0;
+	int len = 0;
+	u32 buffer[BSIZE] __aligned(ARCH_DMA_MINALIGN);
+	struct spl_boot_device bootdev;
+
 	/* configuring the clock based on handoff */
 	cm_basic_init(gd->fdt_blob);
 	WATCHDOG_RESET();
@@ -214,6 +227,80 @@ void spl_board_init(void)
 
 	/* Add device descriptor to FPGA device table */
 	socfpga_fpga_add();
+
+	bootdev.boot_device = spl_boot_device();
+
+	if(BOOT_DEVICE_MMC1 == bootdev.boot_device)
+	{
+		struct mmc *mmc = NULL;
+		int err = 0;
+		fpga_fs_info fpga_fsinfo;
+		const char *part_str;
+		char *dup_str = NULL;
+
+		spl_mmc_find_device(&mmc, bootdev.boot_device);
+
+		err = mmc_init(mmc);
+
+		if (err) {
+#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
+			printf("spl: mmc init failed with error: %d\n", err);
+#endif
+		}
+
+		fpga_fsinfo.filename = (char *) get_cff_filename(gd->fdt_blob,
+								 &len,
+								PERIPH_RBF);
+
+		fpga_fsinfo.dev_part = (char *) get_cff_devpart(gd->fdt_blob,
+								 &len);
+
+		fpga_fsinfo.interface = "mmc";
+
+		fpga_fsinfo.fstype = FS_TYPE_FAT;
+
+		/* Program peripheral RBF */
+		if (fpga_fsinfo.filename && (len > 0)) {
+
+			if (NULL == fpga_fsinfo.dev_part) {
+				/* FAT partition */
+				fpga_fsinfo.dev_part = "0:1";
+
+				printf("No SD/MMC partition found in ");
+				printf("environment. Assuming device 0,");
+				printf(" partition 1.\n");
+			}
+
+			/* Separate device and partition ID specification */
+			part_str = strchr(fpga_fsinfo.dev_part, ':');
+			dup_str = strdup(fpga_fsinfo.dev_part);
+			dup_str[part_str - fpga_fsinfo.dev_part] = 0;
+			part_str++;
+
+			if(!isdigit(*part_str))
+			{
+				printf("Invalid device partition |%c|\n",
+					 *part_str );
+				return;
+			}
+
+			/* we are looking at the FAT partition */
+			if (fat_register_device(mmc_get_blk_desc(mmc),
+					simple_strtol(part_str, NULL, 10))) {
+				printf("Failed to set partition |%c| to FAT.\n",
+					 *part_str);
+				return;
+			}
+
+			rval = fpga_fsload(0, buffer, BSIZE, &fpga_fsinfo);
+		}
+	}
+
+	if (rval > 0) {
+		config_pins(gd->fdt_blob, "shared");
+
+		ddr_calibration_sequence();
+	}
 }
 
 void board_init_f(ulong dummy)
diff --git a/common/spl/spl_mmc.c b/common/spl/spl_mmc.c
index bb48cac..be47fea 100644
--- a/common/spl/spl_mmc.c
+++ b/common/spl/spl_mmc.c
@@ -113,7 +113,7 @@ static int spl_mmc_get_device_index(u32 boot_device)
 	return -ENODEV;
 }
 
-static int spl_mmc_find_device(struct mmc **mmcp, u32 boot_device)
+int spl_mmc_find_device(struct mmc **mmcp, u32 boot_device)
 {
 #ifdef CONFIG_DM_MMC
 	struct udevice *dev;
diff --git a/configs/socfpga_arria10_defconfig b/configs/socfpga_arria10_defconfig
index 4238710..dabed39 100644
--- a/configs/socfpga_arria10_defconfig
+++ b/configs/socfpga_arria10_defconfig
@@ -2,32 +2,77 @@ CONFIG_ARM=y
 CONFIG_ARCH_SOCFPGA=y
 CONFIG_SYS_MALLOC_F_LEN=0x2000
 CONFIG_TARGET_SOCFPGA_ARRIA10_SOCDK=y
+CONFIG_SPL_STACK_R_ADDR=0x00800000
 CONFIG_IDENT_STRING="socfpga_arria10"
 CONFIG_DEFAULT_DEVICE_TREE="socfpga_arria10_socdk_sdmmc"
 CONFIG_DEFAULT_FDT_FILE="socfpga_arria10_socdk_sdmmc.dtb"
+CONFIG_FIT=y
+CONFIG_SYS_CONSOLE_IS_IN_ENV=y
+CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE=y
+CONFIG_SYS_CONSOLE_ENV_OVERWRITE=y
+CONFIG_SPL_ENV_SUPPORT=y
+CONFIG_VERSION_VARIABLE=y
 CONFIG_SPL=y
+CONFIG_HUSH_PARSER=y
 CONFIG_SPL_FPGA_SUPPORT=y
 CONFIG_SPL_FAT_SUPPORT=y
+CONFIG_FS_FAT_MAX_CLUSTSIZE=32768
 CONFIG_CMD_BOOTZ=y
 # CONFIG_CMD_IMLS is not set
 CONFIG_CMD_ASKENV=y
 CONFIG_CMD_GREPENV=y
 # CONFIG_CMD_FLASH is not set
+CONFIG_SPL_LIBDISK_SUPPORT=y
+CONFIG_CMD_PART=y
 CONFIG_CMD_MMC=y
+CONFIG_CMD_SF=y
+CONFIG_CMD_SPI=y
+CONFIG_CMD_I2C=y
+CONFIG_SYS_I2C_DW=y
+CONFIG_CMD_USB=y
+CONFIG_CMD_DFU=y
+CONFIG_CMD_USB_MASS_STORAGE=y
 CONFIG_CMD_GPIO=y
+CONFIG_CMD_MII=y
 CONFIG_CMD_DHCP=y
 CONFIG_CMD_PING=y
 CONFIG_CMD_CACHE=y
 CONFIG_CMD_EXT4=y
 CONFIG_CMD_EXT4_WRITE=y
 CONFIG_DOS_PARTITION=y
-# CONFIG_SPL_DOS_PARTITION is not set
+CONFIG_SPL_DOS_PARTITION=y
+CONFIG_CMD_FAT=y
+CONFIG_CMD_FS_GENERIC=y
+CONFIG_CMD_UBI=y
 CONFIG_SPL_DM=y
 CONFIG_SPL_DM_SEQ_ALIAS=y
+CONFIG_DFU_MMC=y
 CONFIG_FPGA_SOCFPGA=y
 CONFIG_DM_GPIO=y
 CONFIG_DWAPB_GPIO=y
 CONFIG_DM_MMC=y
+CONFIG_MMC_DW=y
+CONFIG_SPI_FLASH=y
+CONFIG_SPI_FLASH_BAR=y
+CONFIG_SPI_FLASH_SPANSION=y
+CONFIG_SPI_FLASH_STMICRO=y
+CONFIG_DM_ETH=y
+CONFIG_ETH_DESIGNWARE=y
 CONFIG_SYS_NS16550=y
-CONFIG_USE_TINY_PRINTF=y
 CONFIG_CMD_FPGA_LOADFS=y
+CONFIG_CADENCE_QSPI=y
+CONFIG_DESIGNWARE_SPI=y
+CONFIG_USB=y
+CONFIG_DM_USB=y
+CONFIG_USB_STORAGE=y
+CONFIG_USB_GADGET=y
+CONFIG_USB_GADGET_DWC2_OTG=y
+CONFIG_USB_GADGET_DOWNLOAD=y
+CONFIG_G_DNL_MANUFACTURER="altera"
+CONFIG_G_DNL_VENDOR_NUM=0x0525
+CONFIG_G_DNL_PRODUCT_NUM=0xa4a5
+CONFIG_USE_TINY_PRINTF=y
+CONFIG_SPL_MMC_SUPPORT=y
+CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_USE_SECTOR=y
+CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR=0x800
+CONFIG_ENABLE_ARM_SOC_BOOT0_HOOK=y
diff --git a/disk/part.c b/disk/part.c
index 491b02d..fc5ebc3 100644
--- a/disk/part.c
+++ b/disk/part.c
@@ -427,6 +427,7 @@ int blk_get_device_part_str(const char *ifname, const char *dev_part_str,
 	}
 #endif
 
+#ifndef CONFIG_SPL_BUILD
 #ifdef CONFIG_CMD_UBIFS
 	/*
 	 * Special-case ubi, ubi goes through a mtd, rathen then through
@@ -448,6 +449,7 @@ int blk_get_device_part_str(const char *ifname, const char *dev_part_str,
 		return 0;
 	}
 #endif
+#endif
 
 	/* If no dev_part_str, use bootdevice environment variable */
 	if (!dev_part_str || !strlen(dev_part_str) ||
diff --git a/include/spl.h b/include/spl.h
index ffadce9..2c9c171 100644
--- a/include/spl.h
+++ b/include/spl.h
@@ -10,6 +10,7 @@
 /* Platform-specific defines */
 #include <linux/compiler.h>
 #include <asm/spl.h>
+#include <mmc.h>
 
 /* Value in r0 indicates we booted from U-Boot */
 #define UBOOT_NOT_LOADED_FROM_SPL	0x13578642
@@ -68,6 +69,7 @@ int spl_load_simple_fit(struct spl_image_info *spl_image,
 void preloader_console_init(void);
 u32 spl_boot_device(void);
 u32 spl_boot_mode(const u32 boot_device);
+int spl_mmc_find_device(struct mmc **mmcp, u32 boot_device);
 
 /**
  * spl_set_header_raw_uboot() - Set up a standard SPL image structure
-- 
1.7.7.4