[U-Boot-Users] 2Gbits NAND flash

[Stefan Roese]

Hi Hebbar,

On Friday 06 October 2006 06:36, Srinivasa Hebbar wrote:
> I am using the latest u-boot (1.1.4) code and it
> doesn't have 2Gbits (256 MBytes) NAND flash support.

This statement is not correct:

U-Boot 1.1.4-g64cd52ef-dirty (Oct  1 2006 - 12:05:20)

CPU:   AMCC PowerPC 440GX Rev. F at 533.328 MHz (PLB=133, OPB=66, EBC=33 MHz)
       I2C boot EEPROM enabled
       Bootstrap Option F - Boot ROM Location I2C (Addr 0x54)
       Internal PCI arbiter enabled
       32 kB I-Cache 32 kB D-Cache
Board: ALPR
I2C:   ready
DRAM:  256 MB
FLASH:  2 MB
NAND:  2048 MiB

<snip>

=> nand info

Device 0: NAND 1GiB 3,3V 8-bit, sector size 128 KiB
Device 2: NAND 1GiB 3,3V 8-bit, sector size 128 KiB

> I appreciate if some one can point me in the
> right direction to use the 2Gbits NAND flash from U-boot.
> (Chip: Micron MT29F2Gxxxxx)
> I want to boot the linux kernel from the NAND flash.

Please make sure that you use the "new" U-Boot NAND driver (driver/nand/*) and 
_not_ the "old" legacy driver. This could be your problem.

Best regards,
Stefan