Hi,
On Tue, Jul 31, 2012 at 4:01 AM, Rajeshwari Shinde rajeshwari.s@samsung.com wrote:
This patch enables SPI Booting for EXYNOS5
Signed-off-by: Rajeshwari Shinde rajeshwari.s@samsung.com
Changes in V2: - None. board/samsung/smdk5250/Makefile | 2 +- board/samsung/smdk5250/{mmc_boot.c => spl_boot.c} | 31 +++++++++++++++++++- include/configs/smdk5250.h | 5 +++ 3 files changed, 35 insertions(+), 3 deletions(-) rename board/samsung/smdk5250/{mmc_boot.c => spl_boot.c} (66%)
diff --git a/board/samsung/smdk5250/Makefile b/board/samsung/smdk5250/Makefile index 1474fa8..47c6a5a 100644 --- a/board/samsung/smdk5250/Makefile +++ b/board/samsung/smdk5250/Makefile @@ -36,7 +36,7 @@ COBJS += smdk5250.o endif
ifdef CONFIG_SPL_BUILD -COBJS += mmc_boot.o +COBJS += spl_boot.o endif
SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c) diff --git a/board/samsung/smdk5250/mmc_boot.c b/board/samsung/smdk5250/spl_boot.c similarity index 66% rename from board/samsung/smdk5250/mmc_boot.c rename to board/samsung/smdk5250/spl_boot.c index 449a919..d8f3c1e 100644 --- a/board/samsung/smdk5250/mmc_boot.c +++ b/board/samsung/smdk5250/spl_boot.c @@ -23,6 +23,16 @@ #include<common.h> #include<config.h>
+enum boot_mode {
BOOT_MODE_MMC = 4,BOOT_MODE_SERIAL = 20,/* Boot based on Operating Mode pin settings */BOOT_MODE_OM = 32,BOOT_MODE_USB, /* Boot using USB download */+};
typedef u32 (*spi_copy_func_t)(u32 offset, u32 nblock, u32 dst);/*
- Copy U-boot from mmc to RAM:
- COPY_BL2_FNPTR_ADDR: Address in iRAM, which Contains
@@ -30,9 +40,26 @@ */ void copy_uboot_to_ram(void) {
u32 (*copy_bl2)(u32, u32, u32) = (void *) *(u32 *)COPY_BL2_FNPTR_ADDR;
spi_copy_func_t spi_copy;enum boot_mode bootmode;u32 (*copy_bl2)(u32, u32, u32);bootmode = readl(EXYNOS5_POWER_BASE) & OM_STAT;
copy_bl2(BL2_START_OFFSET, BL2_SIZE_BLOC_COUNT, CONFIG_SYS_TEXT_BASE);
switch (bootmode) {case BOOT_MODE_SERIAL:spi_copy = *(spi_copy_func_t *)EXYNOS_COPY_SPI_FNPTR_ADDR;spi_copy(SPI_FLASH_UBOOT_POS, CONFIG_BL2_SIZE,CONFIG_SYS_TEXT_BASE);break;case BOOT_MODE_MMC:copy_bl2 = (void *) *(u32 *)COPY_BL2_FNPTR_ADDR;copy_bl2(BL2_START_OFFSET, BL2_SIZE_BLOC_COUNT,CONFIG_SYS_TEXT_BASE);break;default:break;}}
void board_init_f(unsigned long bootflag) diff --git a/include/configs/smdk5250.h b/include/configs/smdk5250.h index 29b7ac6..4b9093c 100644 --- a/include/configs/smdk5250.h +++ b/include/configs/smdk5250.h @@ -192,6 +192,11 @@ /* U-boot copy size from boot Media to DRAM.*/ #define BL2_START_OFFSET (CONFIG_BL2_OFFSET/512) #define BL2_SIZE_BLOC_COUNT (CONFIG_BL2_SIZE/512)
+#define OM_STAT (0x1f << 1) +#define EXYNOS_COPY_SPI_FNPTR_ADDR 0x02020058
Would these two be better in exynos5.h or similar? They don't seem like a board feature?
+#define SPI_FLASH_UBOOT_POS (CONFIG_SEC_FW_SIZE + CONFIG_BL1_SIZE)
#define CONFIG_DOS_PARTITION
#define CONFIG_IRAM_STACK 0x02050000
1.7.4.4
Regards, Simon