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authorWu, Josh <Josh.wu@atmel.com>2014-06-24 17:31:02 +0800
committerTom Rini <trini@ti.com>2014-07-07 19:43:01 -0400
commitbe354c1a214daeedb24d7716308432f188d0004c (patch)
treeb490df27d929a7609147c8da5eae7dd104d2a266 /include
parent8038b497e742af2845523ed09b560bfc8cb42089 (diff)
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env_fat: use get_device_and_partition() during env save and load
Use get_device_and_partition() is better since: 1. It will call the device initialize function internally. So we can remove the mmc intialization code to save many lines. 2. It is used by fatls/fatload/fatwrite. So saveenv & load env should use it too. 3. It can parse the "D:P", "D", "D:", "D:auto" string to get correct device and partition information by run-time. Also we remove the FAT_ENV_DEVICE and FAT_ENV_PART. We use a string: FAT_ENV_DEVICE_AND_PART. For at91sam9m10g45ek, it is "0". That means use device 0 and if: a)device 0 has no partition table, use the whole device as a FAT file system. b)device 0 has partittion table, use the partition #1. Refer to the commit: 10a37fd7a4 for details of device & partition string. Signed-off-by: Josh Wu <josh.wu@atmel.com> Reviewed-by: Stephen Warren <swarren@nvidia.com>
Diffstat (limited to 'include')
-rw-r--r--include/configs/at91sam9m10g45ek.h8
1 files changed, 6 insertions, 2 deletions
diff --git a/include/configs/at91sam9m10g45ek.h b/include/configs/at91sam9m10g45ek.h
index 341b21d..db5d5ea 100644
--- a/include/configs/at91sam9m10g45ek.h
+++ b/include/configs/at91sam9m10g45ek.h
@@ -167,8 +167,12 @@
#elif CONFIG_SYS_USE_MMC
/* bootstrap + u-boot + env + linux in mmc */
#define FAT_ENV_INTERFACE "mmc"
-#define FAT_ENV_DEVICE 0
-#define FAT_ENV_PART 1
+/*
+ * We don't specify the part number, if device 0 has partition table, it means
+ * the first partition; it no partition table, then take whole device as a
+ * FAT file system.
+ */
+#define FAT_ENV_DEVICE_AND_PART "0"
#define FAT_ENV_FILE "uboot.env"
#define CONFIG_ENV_IS_IN_FAT
#define CONFIG_FAT_WRITE