atmel: at91sam9x5: add spi flash boot support
Add at91sam9x5 series spi flash boot support
Using at91sam9x5ek_spiflash to configure, then it can boot from at25df321
serial flash
SPI mater work in 30Mhz speed, while not 1Mhz speed. This will base on
atmel_spi patch, or else, it will occur receive overrun
Signed-off-by: Bo Shen <voice.shen@atmel.com>
Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
diff --git a/include/configs/at91sam9x5ek.h b/include/configs/at91sam9x5ek.h
index 82f6b48..5cae6bd 100644
--- a/include/configs/at91sam9x5ek.h
+++ b/include/configs/at91sam9x5ek.h
@@ -86,6 +86,7 @@
#define CONFIG_CMD_PING
#define CONFIG_CMD_DHCP
#define CONFIG_CMD_NAND
+#define CONFIG_CMD_SF
/* SDRAM */
#define CONFIG_NR_DRAM_BANKS 1
@@ -96,12 +97,11 @@
(CONFIG_SYS_SDRAM_BASE + 4 * 1024 - GENERATED_GBL_DATA_SIZE)
/* DataFlash */
-#ifdef CONFIG_ATMEL_SPI
-#define CONFIG_CMD_SF
-#define CONFIG_CMD_SPI
+#ifdef CONFIG_CMD_SF
+#define CONFIG_ATMEL_SPI
#define CONFIG_SPI_FLASH
#define CONFIG_SPI_FLASH_ATMEL
-#define CONFIG_SYS_MAX_DATAFLASH_BANKS
+#define CONFIG_SF_DEFAULT_SPEED 30000000
#endif
/* no NOR flash */
@@ -149,6 +149,18 @@
#define CONFIG_BOOTCOMMAND "nand read " \
"0x22000000 0x200000 0x300000; " \
"bootm 0x22000000"
+#else
+#ifdef CONFIG_SYS_USE_SPIFLASH
+/* bootstrap + u-boot + env + linux in spi flash */
+#define CONFIG_ENV_IS_IN_SPI_FLASH
+#define CONFIG_ENV_OFFSET 0x5000
+#define CONFIG_ENV_SIZE 0x3000
+#define CONFIG_ENV_SECT_SIZE 0x1000
+#define CONFIG_ENV_SPI_MAX_HZ 30000000
+#define CONFIG_BOOTCOMMAND "sf probe 0; " \
+ "sf read 0x22000000 0x100000 0x300000; " \
+ "bootm 0x22000000"
+#endif
#endif
#define CONFIG_BOOTARGS "mem=128M console=ttyS0,115200 " \