Dear Harald.Vollmer@tieto.com,
In message FB9EE8D3A2BCC74B808284D2CC56BC8C0A5FE514B9@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