GPMI-NAND Status?
From: Ivan Djelic <hidden>
Date: 2011-08-15 16:57:34
On Mon, Aug 15, 2011 at 05:22:13PM +0100, Artem Bityutskiy wrote:
On Sun, 2011-08-14 at 10:11 +0200, Ivan Djelic wrote:quoted
On Fri, Aug 05, 2011 at 02:51:33PM +0100, Wolfram Sang wrote: (...)quoted
problem overwriting all-0xff data in NAND [2] ============================================= Although it occured only when writing JFFS2 images so far, this is a generic issue and needs to be fixed, right?(...)As explained in the thread linked above, this issue should be fixed in your flashing tool, _not_ in your driver. The nand device you are using does not support programming pages multiple times in a row; pretending it does in the special all-0xff case is inefficient (you need to detect all-0xff data) and unnecessary (just do not program blank pages !).Hmm, isn't it also buggy because if my precious data contains 2KiB of 0xFFs (aligned to 2KiB boundary) then I will have no ECC protection for this page? Or I miss something?
Ouch, yes you are correct, very good point which I missed :) Ivan