[U-Boot] Checking validity of rootfs in NAND-Flash

[Wolfgang Denk]

Dear Harald.Vollmer at tieto.com,

In message <FB9EE8D3A2BCC74B808284D2CC56BC8C0A5FE514B9 at EXMB04.eu.tieto.com> you wrote:
>
> in my project, u-boot (2009.11) loads a large jffs2-rootfs  image (80 MB, w
> ith an attached crc32-checksum)  from SD-card into a NAND-Flash.
> To ensure the validity of the rootfs, i let u-boot then clear the RAM-part,
>  read back the rootfs from NAND into RAM, do a crc32 checksum over it and c
> ompare this
> checksum with the crc32- checksum that was attached to the image.
> This validity check takes about 70 seconds. Do you know a faster/better way
>  of checking the validity?

Please make sure your line length does not exceed some 70 characters
or so.  Thanks.


I smell this is on an ARM system? In this case you should update and
use a more recent version of U-Boot, where we have support for
caches.  This usually helps a _lot_.

Best regards,

Wolfgang Denk

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