2011/9/21 Scott Wood <[email protected]>: > On 09/21/2011 04:59 AM, Arno Steffen wrote: >> Thank you for clarification. Although I am estonished, that after some >> time of running 2 devices come up with CRC errors (with just read >> access to environment!!). >> Unfortunatly I don't know a way just to change 1 bit in flash without >> changing the OOB data to simulate a toogling bit. > > http://patchwork.ozlabs.org/patch/114262/ provides the ability to do a > raw write. Copy out the good data (including OOB), erase the block, > flip a bit in the RAM copy, and raw-write it all back at once. > > What board and nand driver are you using? > > -Scott
This is a good advice - I will check this next. Thanks, Scott! I use an OMAP3 (simular to EVM 3530 board) with uboot-2010.03. My assumption of not using ECC (or doing CRC first) is derived from, that I had several devices with CRC error in environment but not even a single board ever complains about the kernel, which is 12x bigger! (It is from what I know also CRC protected, but in another way). From my knowledge about statistics this behaviour is very unlikely. - Arno _______________________________________________ U-Boot mailing list [email protected] http://lists.denx.de/mailman/listinfo/u-boot
