arm, at91, spl: add spl support for the taurus board
replaces the at91bootstrap code with SPL code.
make the spl image with:
./tools/mkimage -T atmelimage -d spl/u-boot-spl.bin spl/boot.bin
this writes the length of the spl image into the 6th
execption vector. This is needed from the ROM bootloader.
Signed-off-by: Heiko Schocher <hs@denx.de>
Reviewed-by: Bo Shen <voice.shen@atmel.com>
Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
diff --git a/include/configs/taurus.h b/include/configs/taurus.h
index ba9496f..20194ae 100644
--- a/include/configs/taurus.h
+++ b/include/configs/taurus.h
@@ -34,7 +34,7 @@
*/
-#define CONFIG_SYS_TEXT_BASE 0x23f00000
+#define CONFIG_SYS_TEXT_BASE 0x21000000
/* ARM asynchronous clock */
#define CONFIG_SYS_AT91_SLOW_CLOCK 32768 /* slow clock xtal */
@@ -168,4 +168,54 @@
#define CONFIG_SYS_MALLOC_LEN \
ROUND(3 * CONFIG_ENV_SIZE + 128*1024, 0x1000)
+/* Defines for SPL */
+#define CONFIG_SPL_FRAMEWORK
+#define CONFIG_SPL_TEXT_BASE 0x0
+#define CONFIG_SPL_MAX_SIZE (11 * 1024)
+#define CONFIG_SPL_STACK (16 * 1024)
+
+#define CONFIG_SPL_BSS_START_ADDR CONFIG_SPL_MAX_SIZE
+#define CONFIG_SPL_BSS_MAX_SIZE (3 * 1024)
+
+#define CONFIG_SPL_LIBCOMMON_SUPPORT
+#define CONFIG_SPL_LIBGENERIC_SUPPORT
+#define CONFIG_SPL_SERIAL_SUPPORT
+
+#define CONFIG_SPL_BOARD_INIT
+#define CONFIG_SPL_GPIO_SUPPORT
+#define CONFIG_SYS_NAND_ENABLE_PIN_SPL (2*32 + 14)
+#define CONFIG_SPL_NAND_SUPPORT
+#define CONFIG_SYS_USE_NANDFLASH 1
+#define CONFIG_SPL_NAND_DRIVERS
+#define CONFIG_SPL_NAND_BASE
+#define CONFIG_SPL_NAND_ECC
+#define CONFIG_SPL_NAND_RAW_ONLY
+#define CONFIG_SPL_NAND_SOFTECC
+#define CONFIG_SYS_NAND_U_BOOT_OFFS 0x20000
+#define CONFIG_SYS_NAND_U_BOOT_SIZE 0x80000
+#define CONFIG_SYS_NAND_U_BOOT_START CONFIG_SYS_TEXT_BASE
+#define CONFIG_SYS_NAND_U_BOOT_DST CONFIG_SYS_TEXT_BASE
+#define CONFIG_SYS_NAND_5_ADDR_CYCLE
+
+#define CONFIG_SYS_NAND_SIZE (256*1024*1024)
+#define CONFIG_SYS_NAND_PAGE_SIZE 2048
+#define CONFIG_SYS_NAND_BLOCK_SIZE (128*1024)
+#define CONFIG_SYS_NAND_PAGE_COUNT (CONFIG_SYS_NAND_BLOCK_SIZE / \
+ CONFIG_SYS_NAND_PAGE_SIZE)
+#define CONFIG_SYS_NAND_BAD_BLOCK_POS NAND_LARGE_BADBLOCK_POS
+#define CONFIG_SYS_NAND_ECCSIZE 256
+#define CONFIG_SYS_NAND_ECCBYTES 3
+#define CONFIG_SYS_NAND_OOBSIZE 64
+#define CONFIG_SYS_NAND_ECCPOS { 40, 41, 42, 43, 44, 45, 46, 47, \
+ 48, 49, 50, 51, 52, 53, 54, 55, \
+ 56, 57, 58, 59, 60, 61, 62, 63, }
+
+
+#define CONFIG_SPL_ATMEL_SIZE
+#define CONFIG_SYS_MASTER_CLOCK 132096000
+#define AT91_PLL_LOCK_TIMEOUT 1000000
+#define CONFIG_SYS_AT91_PLLA 0x202A3F01
+#define CONFIG_SYS_MCKR 0x1300
+#define CONFIG_SYS_MCKR_CSS (0x02 | CONFIG_SYS_MCKR)
+#define CONFIG_SYS_AT91_PLLB 0x10193F05
#endif