mmc: at91sam9x5: support to save environment in mmc

Signed-off-by: Josh Wu <josh.wu@atmel.com>
Acked-by: Andreas Bießmann <andreas.devel@googlemail.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>

diff --git a/boards.cfg b/boards.cfg
index 7ae663c7d9611d3837aa970e1d341a6638d6cd3f..b8a238aec54b24c87b4e80b455bc852117201a2c 100644 (file)
--- a/boards.cfg
+++ b/boards.cfg
@@ -98,6 +98,7 @@ at91sam9rlek_dataflash       arm         arm926ejs   at91sam9rlek        atmel
 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
+at91sam9x5ek_mmc             arm         arm926ejs   at91sam9x5ek        atmel          at91        at91sam9x5ek:AT91SAM9X5,SYS_USE_MMC
 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 71f765b49422208da2b46b62cade585a83071250..131758279ca9b7547d91d2c4be1d9f3673e77eb0 100644 (file)
--- a/include/configs/at91sam9x5ek.h
+++ b/include/configs/at91sam9x5ek.h
@@ -168,8 +168,7 @@
 #define CONFIG_BOOTCOMMAND     "nand read " \
                                "0x22000000 0x200000 0x300000; " \
                                "bootm 0x22000000"
-#else
-#ifdef CONFIG_SYS_USE_SPIFLASH
+#elif defined(CONFIG_SYS_USE_SPIFLASH)
 /* bootstrap + u-boot + env + linux in spi flash */
 #define CONFIG_ENV_IS_IN_SPI_FLASH
 #define CONFIG_ENV_OFFSET      0x5000
@@ -179,14 +178,28 @@
 #define CONFIG_BOOTCOMMAND     "sf probe 0; " \
                                "sf read 0x22000000 0x100000 0x300000; " \
                                "bootm 0x22000000"
-#endif
+#else /* CONFIG_SYS_USE_MMC */
+/* bootstrap + u-boot + env + linux in mmc */
+#define CONFIG_ENV_IS_IN_MMC
+/* For FAT system, most cases it should be in the reserved sector */
+#define CONFIG_ENV_OFFSET      0x2000
+#define CONFIG_ENV_SIZE                0x1000
+#define CONFIG_SYS_MMC_ENV_DEV 0
 #endif
 
+#ifdef CONFIG_SYS_USE_MMC
+#define CONFIG_BOOTARGS                "mem=128M console=ttyS0,115200 " \
+                               "mtdparts=atmel_nand:" \
+                               "8M(bootstrap/uboot/kernel)ro,-(rootfs) " \
+                               "root=/dev/mmcblk0p2 " \
+                               "rw rootfstype=ext4 rootwait"
+#else
 #define CONFIG_BOOTARGS                "mem=128M console=ttyS0,115200 " \
                                "mtdparts=atmel_nand:" \
                                "8M(bootstrap/uboot/kernel)ro,-(rootfs) " \
                                "root=/dev/mtdblock1 rw " \
                                "rootfstype=ubifs ubi.mtd=1 root=ubi0:rootfs"
+#endif
 
 #define CONFIG_BAUDRATE                115200