[U-Boot] Karo TX25 environment variable

[davide doninelli]

Hi,

My board is a Karo tx25 (imx25) and the purpose is to speedup the boot process. For thats reason i tried to change bootloader from Redboot to uboot. but i had some problem when save environment on nand.

When i save the environment variables the first time work but aftre reboot see a badblock.


Tanks in advance

Davide Doninelli

Redboot nand info:

RedBoot> nand info

Type:            Samsung K9F1G08U0A 8-bit 2K page 128MB
Total size:      0x08000000 bytes (128 MiB)
Total blocks:    0x400 (1024)
Block size:      0x20000 (131072)
Page size:       0x800 (2048)
Spare size:      0x40 (64)
Pages per block: 0x40 (64)

block 253 at offset 0x01fa0000 is a factory bad block
==================================
Found 1 bad block(s) out of 1024
RedBoot> 



Here some output of prebuilt image for this card:

U-Boot 2009.11-00146-g7d259a1-dirty (Jan 07 2010 - 21:05:46)

CPU:   Freescale i.MX25 at 532 MHz

DRAM:  32 MB
NAND:  128 MiB
No Valid Environment Area Found
No Valid Reundant Environment Area Found
*** Warning - bad CRC or NAND, using default environment

In:    serial
Out:   serial
Err:   serial
tx25_fec_init
resetting phy
Net:   FEC_MXC
Hit any key to stop autoboot:  0 
=> saveenv
Saving Environment to NAND...
Erasing redundant Nand...
Skipping bad block at  0x00080000                                          
Skipping bad block at  0x000a0000                                          

Writing to redundant Nand... FAILED!

=> nand bad

Device 0 bad blocks:
 00000000
 00020000
 00040000
 00060000
 00080000
 000a0000
 000c0000
 000e0000
 01fa0000
 07f60000


Here some output of my uboot image for this card standard config:
U-Boot 2010.09 (Dec 17 2010 - 14:35:56)

CPU:   Freescale i.MX25 at 399 MHz

DRAM:  32 MiB
NAND:  128 MiB
*** Warning - bad CRC or NAND, using default environment

In:    serial
Out:   serial
Err:   serial
Net:   FEC
Hit any key to stop autoboot:  0 
=> saveenv
Saving Environment to NAND...
Erasing redundant Nand...
Erasing at 0x60000 -- 100% complete.
Writing to redundant Nand... done
=> saveenv
Saving Environment to NAND...
Erasing Nand...
Erasing at 0x40000 -- 100% complete.
Writing to Nand... done


After reset:

CPU:   Freescale i.MX25 at 399 MHz

DRAM:  32 MiB
NAND:  128 MiB
MXC_NAND: HWECC uncorrectable ECC error in block 2 page 128 subpage 0
No Valid Environment Area Found
No Valid Reundant Environment Area Found
*** Warning - bad CRC or NAND, using default environment

In:    serial
Out:   serial
Err:   serial
Net:   FEC
Hit any key to stop autoboot:  0 
=> 
=> saveenv
Saving Environment to NAND...
Erasing redundant Nand...
Skipping bad block at  0x00060000                                          

Writing to redundant Nand... FAILED!
=> nand bad

Device 0 bad blocks:
 00000000
 00060000
 00140000
 00160000
 01fa0000
 07fc0000
 07fe0000
=>