Hi Josh,
On 11/22/2013 02:58 PM, Josh Wu wrote:
This patch will save U-Boot environment as a file: uboot.env, in FAT partition
instead of saving it in raw sector of SD card.
Since saving environment in raw sector has risk of corrupting the SD card and
only can use very small size. Save as a FAT file has no above limitation.
Signed-off-by: Josh Wu <josh...@atmel.com>
---
include/configs/sama5d3xek.h | 10 +++++++---
1 file changed, 7 insertions(+), 3 deletions(-)
Tested on sama5d31ek board. It doesn't work. Please check it, and also
check on at91sam9x5ek board.
Please take the following information as a reference.
--->8---
U-Boot 2013.10-00389-gf37e980 (Nov 22 2013 - 17:56:53)
CPU: SAMA5D31
Crystal frequency: 12 MHz
CPU clock : 528 MHz
Master clock : 132 MHz
DRAM: 512 MiB
NAND: 256 MiB
MMC: mci: 0
mci: setting clock 257812 Hz, block size 512
mci: setting clock 257812 Hz, block size 512
mci: setting clock 257812 Hz, block size 512
mci: setting clock 257812 Hz, block size 512
mci: setting clock 22000000 Hz, block size 512
reading uboot.env
** Unable to read "uboot.env" from mmc0:1 **
Using default environment
In: serial
Out: serial
Err: serial
Net: macb0
Warning: failed to set MAC address
, usb_ether
Hit any key to stop autoboot: 0
U-Boot> fat
fatinfo fatload fatls fatwrite
U-Boot> fatls mmc 0
20737 boot.bin
332916 u-boot.bin
2 file(s), 0 dir(s)
U-Boot> saveenv
Saving Environment to FAT...
mci: setting clock 257812 Hz, block size 512
mci: setting clock 22000000 Hz, block size 512
mci: setting clock 257812 Hz, block size 512
mci: setting clock 257812 Hz, block size 512
mci: setting clock 22000000 Hz, block size 512
writing uboot.env
done
U-Boot> fatls mmc 0
20737 boot.bin
332916 u-boot.bin
2 file(s), 0 dir(s)
---8<---
diff --git a/include/configs/sama5d3xek.h b/include/configs/sama5d3xek.h
index 5a6f0fc..a77ab5f 100644
--- a/include/configs/sama5d3xek.h
+++ b/include/configs/sama5d3xek.h
@@ -196,9 +196,13 @@
"bootm 0x22000000 - 0x21000000"
#elif CONFIG_SYS_USE_MMC
/* bootstrap + u-boot + env in sd card */
-#define CONFIG_ENV_IS_IN_MMC
-#define CONFIG_ENV_OFFSET 0x2000
-#define CONFIG_ENV_SIZE 0x1000
+#define CONFIG_ENV_IS_IN_FAT
+#define CONFIG_FAT_WRITE
+#define FAT_ENV_INTERFACE "mmc"
+#define FAT_ENV_FILE "uboot.env"
+#define FAT_ENV_DEVICE 0
+#define FAT_ENV_PART 1
+#define CONFIG_ENV_SIZE 0x4000
#define CONFIG_BOOTCOMMAND "fatload mmc 0:1 0x21000000 dtb; " \
"fatload mmc 0:1 0x22000000 uImage; " \
"bootm 0x22000000 - 0x21000000"
Best Regards,
Bo Shen
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