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/boards.cfg b/boards.cfg
index ef08dbe13e8dbc61e321b9e64ff088577e0ca1be..72e780344252cd6c43530f09c0db2df61a2a17ff 100644 (file)
--- a/boards.cfg
+++ b/boards.cfg
@@ -96,6 +96,7 @@ at91sam9m10g45ek_nandflash   arm         arm926ejs   at91sam9m10g45ek    atmel
 at91sam9rlek_dataflash       arm         arm926ejs   at91sam9rlek        atmel          at91        at91sam9rlek:AT91SAM9RL,SYS_USE_DATAFLASH
 at91sam9rlek_nandflash       arm         arm926ejs   at91sam9rlek        atmel          at91        at91sam9rlek:AT91SAM9RL,SYS_USE_NANDFLASH
 at91sam9x5ek_nandflash       arm         arm926ejs   at91sam9x5ek        atmel          at91        at91sam9x5ek:AT91SAM9X5,SYS_USE_NANDFLASH
+at91sam9x5ek_spiflash        arm         arm926ejs   at91sam9x5ek        atmel          at91        at91sam9x5ek:AT91SAM9X5,SYS_USE_SPIFLASH
 at91sam9xeek_dataflash_cs0   arm         arm926ejs   at91sam9260ek       atmel          at91        at91sam9260ek:AT91SAM9XE,SYS_USE_DATAFLASH_CS0
 at91sam9xeek_dataflash_cs1   arm         arm926ejs   at91sam9260ek       atmel          at91        at91sam9260ek:AT91SAM9XE,SYS_USE_DATAFLASH_CS1
 at91sam9xeek_nandflash       arm         arm926ejs   at91sam9260ek       atmel          at91        at91sam9260ek:AT91SAM9XE,SYS_USE_NANDFLASH

diff --git a/include/configs/at91sam9x5ek.h b/include/configs/at91sam9x5ek.h
index 82f6b48326e8dfe828f3390c523667910f27339b..5cae6bd70d02e823d7db4a4c054f88df7ba9b016 100644 (file)
--- 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 " \