arm: at91: add at91sam9g20ek_mmc_config, which can save environment in mmc card
Signed-off-by: Josh Wu <josh.wu@atmel.com>
Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
diff --git a/include/configs/at91sam9260ek.h b/include/configs/at91sam9260ek.h
index f6193bb..7846d0b 100644
--- a/include/configs/at91sam9260ek.h
+++ b/include/configs/at91sam9260ek.h
@@ -223,7 +223,7 @@
"mtdparts=atmel_nand:-(root) " \
"rw rootfstype=jffs2"
-#else /* CONFIG_SYS_USE_NANDFLASH */
+#elif defined(CONFIG_SYS_USE_NANDFLASH)
/* bootstrap + u-boot + env + linux in nandflash */
#define CONFIG_ENV_IS_IN_NAND 1
@@ -238,6 +238,22 @@
"512k(dtb),6M(kernel)ro,-(rootfs) " \
"root=/dev/mtdblock7 rw rootfstype=jffs2"
+#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
+
+#define CONFIG_BOOTCOMMAND \
+ "fatload mmc 0:1 0x22000000 uImage; bootm"
+#define CONFIG_BOOTARGS \
+ "console=ttyS0,115200 earlyprintk " \
+ "mtdparts=atmel_nand:256k(bootstrap)ro,512k(uboot)ro," \
+ "256k(env),256k(env_redundant),256k(spare)," \
+ "512k(dtb),6M(kernel)ro,-(rootfs) " \
+ "root=/dev/mmcblk0p2 rw rootfstype=ext4 rootwait"
#endif
#define CONFIG_SYS_PROMPT "U-Boot> "