[U-Boot] [PATCH] mmc: at91sam9x5: support to save environment in mmc

[Josh Wu]

Signed-off-by: Josh Wu <josh.wu at atmel.com>
---
 boards.cfg                     |    1 +
 include/configs/at91sam9x5ek.h |   19 ++++++++++++++++---
 2 files changed, 17 insertions(+), 3 deletions(-)

diff --git a/boards.cfg b/boards.cfg
index 613d6b2..8ffe4f8 100644
--- 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 974e08f..e232221 100644
--- a/include/configs/at91sam9x5ek.h
+++ b/include/configs/at91sam9x5ek.h
@@ -164,8 +164,7 @@
 #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
@@ -175,14 +174,28 @@
 #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
 
-- 
1.7.9.5