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| author | Wu, Josh <Josh.wu@atmel.com> | 2014-06-24 17:31:02 +0800 |
|---|---|---|
| committer | Tom Rini <trini@ti.com> | 2014-07-07 19:43:01 -0400 |
| commit | be354c1a214daeedb24d7716308432f188d0004c (patch) | |
| tree | b490df27d929a7609147c8da5eae7dd104d2a266 /include/configs/at91sam9m10g45ek.h | |
| parent | 8038b497e742af2845523ed09b560bfc8cb42089 (diff) | |
| download | blackbird-obmc-uboot-be354c1a214daeedb24d7716308432f188d0004c.tar.gz blackbird-obmc-uboot-be354c1a214daeedb24d7716308432f188d0004c.zip | |
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/configs/at91sam9m10g45ek.h')
| -rw-r--r-- | include/configs/at91sam9m10g45ek.h | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/include/configs/at91sam9m10g45ek.h b/include/configs/at91sam9m10g45ek.h index 341b21df27..db5d5ea846 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 |
