Booting U-boot from SD

[pavankumarg]

I have the prebuilt u-boot-sd-P1024RDB_SDCARD-git-r17.bin and tried copying it onto the SD card for booting it. I did the following: I created 3 partitions - 1 partition of 512MB in linux-swap format, 1 partition of 20MB in ext2 format and the remaining space of my 4GB SD card as ext3 format.

I also did the following:

Ran mkswap on /dev/mmcblk0p1

Ran mkfs.ext2fs on /dev/mmcblk0p2

Ran mkfs.ext3fs on /dev/mmcblk0p3

After which I copied the prebuilt u-boot binary on the ext2 format.

I also set the switch settings as given in the quick start guide for booting from SD/MMC.

Could you tell me where I am going wrong? Or should I do something in addition to this?

[Pavel · Accepted solution]

Use the following command sequence for u-boot burning:

Under u-boot:

=>tftp 1000000 u-boot-sd-P1024RDB_SDCARD-git-r17.bin

=>mmc erase 8 0x800

=>mmc write 1000000 8 0x800

=>cpld reset sd

Program the image to SD card in Linux.

dd if= u-boot-sd-P1024RDB_SDCARD-git-r17.bin of=/dev/sdb bs=512 seek=8

Have a great day,
Pavel Chubakov

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