From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bo Shen Date: Fri, 22 Nov 2013 18:08:30 +0800 Subject: [U-Boot] [PATCH 2/2] ARM: at91: sama5d3: mmc: save enviroment as a fat file (uboot.env) In-Reply-To: <1385103515-32270-2-git-send-email-josh.wu@atmel.com> References: <1385103515-32270-1-git-send-email-josh.wu@atmel.com> <1385103515-32270-2-git-send-email-josh.wu@atmel.com> Message-ID: <528F2D1E.20800@atmel.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de 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 > --- > 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