Hi Stefan,
Thanks for a prompt reply.
Stefan Roese wrote:
Hi Felix,
On Sunday 05 December 2010 15:27:02 Felix Radensky wrote:
On a custom 460EX board I have a 2Gbyte NAND device, 1Gbyte per chip select. I'm trying to enable support for the second NAND CS, so far without success.
U-Boot properly detects both devices, (manufacturer, size, bus width). First device works as expected, on second device bad blocks are reported correctly, but attempt to erase the device results in I/O errors on every block. The bank settings are identical for both chips.
What am I missing ?
Perhaps a misconfiguration in your board config header? How did you configure the NAND driver? Take a look at DU440.h or bamboo.h for example. Those boards use multiple NAND devices.
Thanks for the hint. I've looked at these boards, and I cannot see what's wrong with my configuration. Since second chip is properly detected, I think configuration is correct. Read also works, only erase and program fail. Looks like a hardware problem to me.
BTW, I was wandering why NAND TLB window size on Canyonlands is 16Mbytes.
Yes. This TLB could be smaller. 1KiB should be enough. Patch welcome. ;)
OK, I'll send the patch.
Felix.