Dockstar: bad block: it is save to flash uboot?

Hey there,

i want to flash one of my dockstar devices with newer u-boot, as described in http://forum.doozan.com/read.php?3,12381.

But demesg says it found a bad block, so i want ask if its save to flash u-boot? If not, what's the workaround?
(it's not important to preserve the original uboot or kernel)

Regards Lutz

Some snippets from the serial console: (boot log)

U-Boot 2010.06-00695-gbd23130-dirty (Aug 30 2010 - 23:04:56)
Marvell-Dockstar/Pogoplug by Jeff Doozan

SoC:   Kirkwood 88F6281_A0
DRAM:  128 MiB
NAND:  256 MiB
In:    serial
Out:   serial
Err:   serial
Net:   egiga0
[...]
### JFFS2 loading 'uboot-original-mtd0.kwb' to 0x800000
Scanning JFFS2 FS: ......... done.
### JFFS2 load complete: 524288 bytes loaded to 0x800000
## Starting application at 0x00800200 ...


U-Boot 1.1.4 (Jul 16 2009 - 21:02:16) Cloud Engines (3.4.16)

U-Boot code: 00600000 -> 0067FFF0  BSS: -> 00690D60

Soc: 88F6281 A0 (DDR2)
[...]
Reading data from 0x3ff800 -- 100% complete.
 3145728 bytes read: OK
## Booting image at 00800000 ...
   Image Name:   Linux-2.6.22.18
   Created:      2009-08-31  23:31:05 UTC
   Image Type:   ARM Linux Kernel Image (uncompressed)
   Data Size:    1976384 Bytes =  1.9 MB
   Load Address: 00008000
   Entry Point:  00008000
   Verifying Checksum ... OK
OK

Starting kernel ...
[...]
[    1.050000] Scanning device for bad blocks
[    1.140000] Bad eraseblock 1865 at 0x0e920000
[    1.150000] Using static partition definition

[    1.160000] Creating 4 MTD partitions on "nand_mtd":
[    1.160000] 0x00000000-0x00100000 : "u-boot"
[    1.170000] 0x00100000-0x00500000 : "uImage"
[    1.170000] 0x00500000-0x02500000 : "root"
[    1.180000] 0x02500000-0x10000000 : "data"
[...]
starting pid 333, tty '': '/bin/sh'
-sh-3.2# dmesg | egrep -i 'bad|flash'
[    0.240000] NFLASH_CS ....base fa000000, size   2MB
[    1.050000] Scanning device for bad blocks
[    1.140000] Bad eraseblock 1865 at 0x0e920000
[    7.870000] Empty flash at 0x00de8e44 ends at 0x00de9000
-sh-3.2# uname -a
Linux Pogoplug 2.6.22.18 #57 Mon Aug 31 16:31:01 PDT 2009 armv5tejl unknown
-sh-3.2# cat /proc/mtd
dev:    size   erasesize  name
mtd0: 00100000 00020000 "u-boot"
mtd1: 00400000 00020000 "uImage"
mtd2: 02000000 00020000 "root"
mtd3: 0db00000 00020000 "data"
-sh-3.2#

[    1.140000] Bad eraseblock 1865 at 0x0e920000

This is far away from mtd0, so it is safe to flash new u-boot.

-bodhi
===========================
Forum Wiki
bodhi's corner (buy bodhi a beer)