Hi Stefan, > > Some of your recent cfi flash driver enhancements have made flash > > protect/unprotect work on our NOR based platforms (S29GL512). Good > > news so far, but as a consequence fw_setenv is woking no more: > > MTD erase error on /dev/mtd5: Input/output error > > Error: can't write fw_env to flash > > > > Also flash_unlock from mtd_utils is not doing the trick: > > Could not unlock MTD device: /dev/mtd5 > > > > Unprotecting flash in u-boot before booting linux makes > this work, but > > this is probably no good idea. > > > > So what is the recommended workflow for fw_setenv on > protected flash? > > Linux support for this enhanced sector protection (PPB) has > just been accepted into mainline Linux. You need include this > patch if you are working with an older kernel version: > > http://patchwork.ozlabs.org/patch/213602/ > > And you also need to enable this feature in your dts file as > described in the patch description.
Ah, thanks a lot. So the recommended workflow (with patch and dts changes applied) would be: flash_unlock fw_setenv flash_lock ? Cheers Dirk _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
