This version works when booting with X-Loader.
Tested-by: Nikita Kiryanov <nik...@compulab.co.il>
On 06/17/2013 05:03 PM, Stefan Roese wrote:
Add SPL U-Boot support to replace x-loader on the Compulab cm_t35
board. Currently only the 256MiB SDRAM board versions are supported.
Tested by booting via MMC and NAND.
Signed-off-by: Stefan Roese <s...@denx.de>
Cc: Tom Rini <tr...@ti.com>
Cc: Igor Grinberg <grinb...@compulab.co.il>
---
v2:
- Change CONFIG_SYS_TEXT_BASE back to 0x80008000 for x-loader
compatibility
- Change CONFIG_SPL_BSS_START_ADDR to 0x80100000 to not overlap
with TEXT_BASE now
board/compulab/cm_t35/cm_t35.c | 18 +++++++++++-
include/configs/cm_t35.h | 64 ++++++++++++++++++++++++++++++++++++++++--
2 files changed, 79 insertions(+), 3 deletions(-)
diff --git a/board/compulab/cm_t35/cm_t35.c b/board/compulab/cm_t35/cm_t35.c
index b0b80e5..cd7882e 100644
--- a/board/compulab/cm_t35/cm_t35.c
+++ b/board/compulab/cm_t35/cm_t35.c
@@ -120,6 +120,22 @@ static inline int splash_load_from_nand(void)
}
#endif /* CONFIG_CMD_NAND */
+#ifdef CONFIG_SPL_BUILD
+/*
+ * Routine: get_board_mem_timings
+ * Description: If we use SPL then there is no x-loader nor config header
+ * so we have to setup the DDR timings ourself on both banks.
+ */
+void get_board_mem_timings(struct board_sdrc_timings *timings)
+{
+ timings->mr = MICRON_V_MR_165;
+ timings->mcfg = MICRON_V_MCFG_165(256 << 20);
+ timings->ctrla = MICRON_V_ACTIMA_165;
+ timings->ctrlb = MICRON_V_ACTIMB_165;
+ timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz;
+}
+#endif
+
int board_splash_screen_prepare(void)
{
char *env_splashimage_value;
@@ -443,7 +459,7 @@ void set_muxconf_regs(void)
cm_t3730_set_muxconf();
}
-#ifdef CONFIG_GENERIC_MMC
+#if defined(CONFIG_GENERIC_MMC) && !defined(CONFIG_SPL_BUILD)
int board_mmc_getcd(struct mmc *mmc)
{
u8 val;
diff --git a/include/configs/cm_t35.h b/include/configs/cm_t35.h
index c6e357a..1dc2d5b 100644
--- a/include/configs/cm_t35.h
+++ b/include/configs/cm_t35.h
@@ -40,8 +40,6 @@
#define CONFIG_OMAP_GPIO
#define CONFIG_CM_T3X /* working with CM-T35 and CM-T3730 */
-#define CONFIG_SYS_TEXT_BASE 0x80008000
-
#define CONFIG_SDRC /* The chip has SDRC controller */
#include <asm/arch/cpu.h> /* get chip and board defs */
@@ -341,4 +339,66 @@
#define CONFIG_BMP_16BPP
#define CONFIG_SPLASH_SCREEN_PREPARE
+/* Defines for SPL */
+#define CONFIG_SPL
+#define CONFIG_SPL_FRAMEWORK
+#define CONFIG_SPL_NAND_SIMPLE
+
+#define CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR 0x300 /* address
0x60000 */
+#define CONFIG_SYS_U_BOOT_MAX_SIZE_SECTORS 0x200 /* 256 KB */
+#define CONFIG_SYS_MMC_SD_FAT_BOOT_PARTITION 1
+#define CONFIG_SPL_FAT_LOAD_PAYLOAD_NAME "u-boot.img"
+
+#define CONFIG_SPL_BOARD_INIT
+#define CONFIG_SPL_LIBCOMMON_SUPPORT
+#define CONFIG_SPL_LIBDISK_SUPPORT
+#define CONFIG_SPL_I2C_SUPPORT
+#define CONFIG_SPL_LIBGENERIC_SUPPORT
+#define CONFIG_SPL_MMC_SUPPORT
+#define CONFIG_SPL_FAT_SUPPORT
+#define CONFIG_SPL_SERIAL_SUPPORT
+#define CONFIG_SPL_NAND_SUPPORT
+#define CONFIG_SPL_NAND_BASE
+#define CONFIG_SPL_NAND_DRIVERS
+#define CONFIG_SPL_NAND_ECC
+#define CONFIG_SPL_GPIO_SUPPORT
+#define CONFIG_SPL_POWER_SUPPORT
+#define CONFIG_SPL_OMAP3_ID_NAND
+#define CONFIG_SPL_LDSCRIPT "$(CPUDIR)/omap-common/u-boot-spl.lds"
+
+/* NAND boot config */
+#define CONFIG_SYS_NAND_5_ADDR_CYCLE
+#define CONFIG_SYS_NAND_PAGE_COUNT 64
+#define CONFIG_SYS_NAND_PAGE_SIZE 2048
+#define CONFIG_SYS_NAND_OOBSIZE 64
+#define CONFIG_SYS_NAND_BLOCK_SIZE (128 * 1024)
+#define CONFIG_SYS_NAND_BAD_BLOCK_POS NAND_LARGE_BADBLOCK_POS
+/*
+ * Use the ECC/OOB layout from omap_gpmc.h that matches your chip:
+ * SP vs LP, 8bit vs 16bit: GPMC_NAND_HW_ECC_LAYOUT
+ */
+#define CONFIG_SYS_NAND_ECCPOS { 1, 2, 3, 4, 5, 6, 7, 8, 9, \
+ 10, 11, 12 }
+#define CONFIG_SYS_NAND_ECCSIZE 512
+#define CONFIG_SYS_NAND_ECCBYTES 3
+
+#define CONFIG_SYS_NAND_U_BOOT_START CONFIG_SYS_TEXT_BASE
+#define CONFIG_SYS_NAND_U_BOOT_OFFS 0x80000
+
+#define CONFIG_SPL_TEXT_BASE 0x40200800
+#define CONFIG_SPL_MAX_SIZE (54 * 1024) /* 8 KB for stack */
+#define CONFIG_SPL_STACK LOW_LEVEL_SRAM_STACK
+
+/*
+ * Use 0x80008000 as TEXT_BASE here for compatibility reasons with the
+ * older x-loader implementations. And move the BSS area so that it
+ * doesn't overlap with TEXT_BASE.
+ */
+#define CONFIG_SYS_TEXT_BASE 0x80008000
+#define CONFIG_SPL_BSS_START_ADDR 0x80100000
+#define CONFIG_SPL_BSS_MAX_SIZE 0x80000 /* 512 KB */
+
+#define CONFIG_SYS_SPL_MALLOC_START 0x80208000
+#define CONFIG_SYS_SPL_MALLOC_SIZE 0x100000
+
#endif /* __CONFIG_H */
--
Regards,
Nikita.
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