[U-Boot] Problems upgrading NAND

Hi all,

I was using a NAND flash from ST Micro, 512 Mbit, with no problems in U-boot-1.2.0.

So I upgraded this nand to a 1 Gbit, also from ST Micro. But now U-boot read only zeros. In linux 2.6.26 both NANDs works.

NAND is connect in Freescale Local Bus UPM.

U-boot finds the NAND normally:

NAND: 128 MiB In: serial Out: serial Err: serial

And the Chip ID is correct in nand_ids.c (dont know the other options):

{"NAND 128MiB 3,3V 8-bit", 0xF1, 0, 128, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_NO_AUTOINCR}

Before I start patching, any hints if could be in nand core or fsl upm driver? Or if NAND1G have some peculiarity? Cause I didnt see in datasheet anything that called my attention.

NAND part numbers:

NAND512W3A NAND01GW3B

Cheers,

-- Alemao