Hi Stefan, On Fri, Apr 12, 2013 at 6:30 AM, Tom Rini <[email protected]> wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > On 04/12/2013 02:19 AM, Stefan Roese wrote: >> Hi Joe, >> >> On 12.04.2013 00:26, Tom Rini wrote: >>> On Mon, Apr 08, 2013 at 03:32:45PM -0500, Joe Hershberger wrote: >>> >>>> NAND is not good at handling absolute addresses to sectors for >>>> storing particular data. The current implementation of the >>>> NAND env support works around this in several ways such as >>>> storing a pointer to the sector in the OOB of the first sector >>>> (interferes with some CRC) or supporting a range of sectors >>>> (which unless it is huge is not guaranteed to be safe). None >>>> of these options address wear-leveling concerns or bad block >>>> handling. >>>> >>>> Accessing the u-boot env from UBI eliminates these concerns. >>>> However, it does require some of the basic settings for finding >>>> the UBI env to be in the default u-boot env. >> >> One question: Do you plan to support the fw_env Linux tools with >> this env-in-UBI feature as well? > > That is what the 'gluebi' comment is about. It could however stand to > be documented more explicitly in the README or similar. You use > CONFIG_MTD_UBI_GLUEBI in the kernel to allow you to map UBI volumes > (which the env(s) are) as regular flash devices.
Sorry that wasn't clearer. In the last two patches you can see where I have to add a few changes to the fw_setenv to make it function properly on the GLUEBI mtd devices. I guess I didn't add much to the READMEs about it. I'll try to remember to push a patch to comment on it more there. Cheers, -Joe _______________________________________________ U-Boot mailing list [email protected] http://lists.denx.de/mailman/listinfo/u-boot
