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authorRajeshwari Shinde <rajeshwari.s@samsung.com>2012-11-02 01:15:38 +0000
committerMinkyu Kang <mk7.kang@samsung.com>2012-11-15 21:08:21 +0900
commit7a5337732e3e05b2b0de1b592fa031b2c7b4f632 (patch)
tree10f6d3d6bc78920927696df86405a794077ee88a
parent3a8a70017d33e4f72f647154ed3432253b3dfac4 (diff)
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EXYNOS5: Enable SPI booting.
This patch enables SPI Booting for EXYNOS5 Signed-off-by: Rajeshwari Shinde <rajeshwari.s@samsung.com> Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
-rw-r--r--board/samsung/smdk5250/Makefile2
-rw-r--r--board/samsung/smdk5250/spl_boot.c (renamed from board/samsung/smdk5250/mmc_boot.c)31
-rw-r--r--include/configs/smdk5250.h5
3 files changed, 35 insertions, 3 deletions
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
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 4973c33..e412da8 100644
--- a/include/configs/smdk5250.h
+++ b/include/configs/smdk5250.h
@@ -187,6 +187,11 @@
/* 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
+#define SPI_FLASH_UBOOT_POS (CONFIG_SEC_FW_SIZE + CONFIG_BL1_SIZE)
+
#define CONFIG_DOS_PARTITION
#define CONFIG_IRAM_STACK 0x02050000