Hi Pekon,
2013/12/10 Gupta, Pekon pekon@ti.com:
Hi Enric,
Sorry I missed your earlier mail, so din't check this..
From: Enric Balletbo Serra [mailto:eballetbo@gmail.com]
I saw that the OOB layout is not the same when I flash the rootfs from the u-boot or from the kernel. For example:
If the rootfs is flashed from the kernel the OOB data is like that:
U-Boot # nand dump.oob 0x680000 Page 00680000 dump: OOB: ff ff 79 43 68 64 3b 80 b2 46 49 4d 58 2a 6d ff 52 3f 7d 2a 7f a2 98 70 57 32 30 35 c7 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
If the rootfs is flashed for the u-boot the OOB data is like data:
Page 00680000 dump: OOB: ff ff 79 43 68 64 3b 80 b2 46 49 4d 58 2a 6d 52 3f 7d 2a 7f a2 98 70 57 32 30 35 c7 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
Note that look the same except after byte number 16. In the first case is ff 52 3f 7d 2a 7f a2 98 70 and in the second case is 52 3f 7d 2a 7f a2 98 70
It's possible that something is wrong writting the OOB data ? Any clue ? I'm in the right direction or completely wrong ?
Yes, there seems to be an mis-match between u-boot and kernel ecc-layout. Give me a day's time, and I'll try to root cause this. However, don't have OMAP3 boards, so I can test this only on other boards.
with regards, pekon
If I can help somehow just let me know.
Thanks, Enric