[U-Boot] [PATCH v4 19/20] arm: socfpga: Enable DDR working

[tien.fong.chee at intel.com]

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

SPL configures DDR by programming peripheral raw binary file
and calibrating DDR.

Signed-off-by: Tien Fong Chee <tien.fong.chee at intel.com>
---
 arch/arm/mach-socfpga/spl.c       | 48 +++++++++++++++++++++++++++++++++++++++
 configs/socfpga_arria10_defconfig | 15 +++++++++---
 2 files changed, 60 insertions(+), 3 deletions(-)

diff --git a/arch/arm/mach-socfpga/spl.c b/arch/arm/mach-socfpga/spl.c
index aba116d..4529b12 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 +205,12 @@ 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;
+	fpga_fs_info fpga_fsinfo;
+
 	/* configuring the clock based on handoff */
 	cm_basic_init(gd->fdt_blob);
 	WATCHDOG_RESET();
@@ -214,6 +228,40 @@ 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;
+
+		spl_mmc_find_device(&mmc, bootdev.boot_device);
+
+		err = mmc_init(mmc);
+
+		if (err) {
+#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
+			error("spl: mmc init failed with error: %d\n", err);
+#endif
+			return;
+		}
+
+		fpga_fsinfo.interface = "mmc";
+		fpga_fsinfo.fstype = FS_TYPE_FAT;
+	}
+
+	fpga_fsinfo.filename = (char *)get_cff_filename(gd->fdt_blob,
+							 &len,
+							 PERIPH_RBF);
+
+	/* Program peripheral RBF */
+	rval = fpga_fsload(0, buffer, BSIZE, &fpga_fsinfo);
+
+	if (!rval) {
+		config_pins(gd->fdt_blob, "shared");
+
+		ddr_calibration_sequence();
+	}
 }
 
 void board_init_f(ulong dummy)
diff --git a/configs/socfpga_arria10_defconfig b/configs/socfpga_arria10_defconfig
index 2db34b5..14adbd8 100644
--- a/configs/socfpga_arria10_defconfig
+++ b/configs/socfpga_arria10_defconfig
@@ -8,29 +8,38 @@ CONFIG_USE_BOOTARGS=y
 CONFIG_BOOTARGS="console=ttyS0,115200"
 CONFIG_DEFAULT_FDT_FILE="socfpga_arria10_socdk_sdmmc.dtb"
 CONFIG_FIT=y
+CONFIG_SPL_ENV_SUPPORT=y
 CONFIG_SPL_FIT=y
 CONFIG_SPL=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_CMD_GPIO=y
+CONFIG_SPL_LIBDISK_SUPPORT=y
 CONFIG_CMD_MMC=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_ENV_IS_IN_MMC=y
+CONFIG_SPL_DOS_PARTITION=y
+CONFIG_SPL_FS_GENERIC=y
+CONFIG_CMD_FAT=y
+CONFIG_CMD_FS_GENERIC=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_SYS_NS16550=y
 CONFIG_USE_TINY_PRINTF=y
+CONFIG_CMD_FPGA_LOADFS=y
+CONFIG_SPL_MMC_SUPPORT=y
-- 
2.2.0