Hi Murali,

On Fri, Feb 03, 2012 at 05:09:27, Karicheri, Muralidharan wrote:
> Sudhakar,
> 
> The good news is that I am able to get UBIFS working as per your
> procedure. But I have to make following changes as well:-
> 
> 1) Disable sub-page write in Linux kernel nand driver and u-boot
> nand driver. Have you done this at your end?
> 2) Use a sub page size of 2048 in mkfs and ubinize commands. Your
> procdure still shows -s 512 though the procedure mention about disabling
> sub page writes.
> 
> With these I can ubiformat a partition for rootfs from Linux and boot
> Linux using the rootfs volume. But following steps still doesn't work when
> you try the same from u-boot
> 
> 1) nand erase.part <rootfs partition>
> 2) nand write 0x88000000 <rootfs partition> <size>
> 3) Boot using rootfs volume.
> 
> We see ECC error when Linux boots up. Have you made any changes
> To u-boot code? Is there a step missing between 1) and 2) similar to 
> ubiformat?
> 

I have not tried it from u-boot. But we were able to boot the AM335x EVM
when UBIFS was flashed from u-boot. The only thing to be taken care of is
that both u-boot and Linux kernel should be following same ECC layout.

Thanks,
Sudhakar
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