On Fri, Jan 16, 2009 at 8:46 PM, Anton Vorontsov avorontsov@ru.mvista.com wrote:
On Fri, Jan 16, 2009 at 02:02:26PM -0200, Alemao wrote:
I'm guessing that 1.2.0 was a BSP u-boot, that was not upstream. I don't think upstream 1.2.0 had UPM NAND support.
You are right, there were no UPM support on U-boot-1.2.0. I used patches sended by Anton from here:
http://www.nabble.com/-PATCH-v2-0-5--mpc83xx%3A-MPC8360E-RDK-related-patches...
There were known issues with this version (it only worked for the small page NANDs, IIRC).
This is already fixed in the upstream U-Boot, via this patch set:
http://www.nabble.com/-PATCH-v3-0-2--NAND-FSL-UPM-driver-update-td17667335.h...
It worked. Now here u-boot-1.2.0 supports NAND 512 and 1Gbit.
The only problem is that kernel is complaining about empty spaces on nand flash. It seems that u-boot when writing to nand is not using all page/block space:
[ 131.220948] Empty flash at 0x00033ff8 ends at 0x00034000 [ 131.309014] Empty flash at 0x00063f68 ends at 0x00064000 [ 131.354234] Empty flash at 0x00093f68 ends at 0x00094000 ... [ 139.266081] Empty flash at 0x0076bffc ends at 0x0076c000
With NAND 512 Gbits I usually got only one "Empty flash at..."
Is this a known issue? Or should I patch nand core? I didnt see relevant changes in drivers/mtd/nand/* that could cause this behavior (based on U-Boot-1.3.4, U-Boot from head differs a lot)
Thanks in advance,
-- Alemao