On 11/21/10 11:29 PM, Ghorai, Sukumar wrote:
>> The board (Mistral AM37x) NAND (Micron 256 MiB) was originally
>> bootstrapped
>> over SD/MMC from u-boot using the following script:
>
> [Ghorai] let me know the nand details - x8/x16, small/big page?
It's the Micron 256 MiB x16 2 KiB page size, 128 KiB erase block size device
on the Mistral AM37x board.
>> fatload mmc 0 ${loadaddr} root.jff
>
> [Ghorai] How you create the root.jff
> mkfs.jffs2 --output=root.jffs2 --root=.. --pagesize=?? --eraseblock=?? -n
% mkfs.jffs2 --little-endian --no-cleanmarkers --pad 2048 --pagesize 2048
--eraseblock 131072 -d /tmp/tmp.h9dKGpcNFw -D root.devices -o root.jffs2
>> nand write.i ${loadaddr} 0x00c00000 0x2000000
>> nand write.i ${loadaddr} 0x04200000 0x2000000
>
> [Ghorai] why you writing in two places?
Redundant images.
>> Following that, the board is updated, from Linux, using 'flash_eraseall -
>> q'
>> and 'nandwrite -p -q' on all partitions, except that containing MLO.
> [Ghorai]
>
> 1. can you send the exact comment you used to write in nand? Which partition?
flash_eraseall -q /dev/mtd7
nandwrite -p -q /dev/mtd7 root.jffs2
flash_eraseal -q /dev/mtd9
nandwrite -p -q /dev/mtd9 root.jffs2
> 2. What is the last kernel you used and was working perfectly?
v2.6.32_OMAPPSP_03.00.01.06.patch1
Best,
Grant
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