After nandtest, all the NAND blocks are marked as bad

Frisky,

Can you do a "nand dump 101e0000" or any of the failing offsets from u-boot, before running nand test, after running nand test? Please send the logs after that.

Renjith,

Thank you for the quick reply. This is my test log:

=====================
MPU-001#
U-Boot SPL 2011.09-local (Aug 23 2012 - 14:04:22)
Texas Instruments Revision detection unimplemented
BOOTEE: U-Boot boots on [0].[0].
Programming BOOTEE passed.
==[SPI][0B]==
SF: Detected W25Q128 with page size 4 KiB, total 16 MiB

U-Boot 2011.09-local (Aug 23 2012 - 14:04:22)

I2C: ready
DRAM: 256 MiB
WARNING: Caches not enabled
NAND: HW ECC Hamming Code selected
512 MiB
MMC: OMAP SD/MMC: 0
SF: Detected W25Q128 with page size 4 KiB, total 16 MiB
HW ECC BCH8 Selected
==[SPI][0B]==
BOOTEE: U-Boot boots on [0].[0] SUCCESS.
Programming BOOTEE passed.
Net: cpsw
Hit any key to stop autoboot: 3 0
MPU-001# nand scrub 10000000 10000000

NAND scrub: device 0 offset 0x10000000, size 0x10000000
Warning: scrub option will erase all factory set bad blocks!
There is no reliable way to recover them.
Use this command only for testing purposes if you
are sure of what you are doing!

Really scrub this NAND flash? <y/N>
ynand_erase: attempt to erase a bad block at page 0x00020000

nand0: MTD Erase failure: -5
nand_erase: attempt to erase a bad block at page 0x00020040

nand0: MTD Erase failure: -5
nand_erase: attempt to erase a bad block at page 0x00020080

nand0: MTD Erase failure: -5
nand_erase: attempt to erase a bad block at page 0x000200c0

nand0: MTD Erase failure: -5
nand_erase: attempt to erase a bad block at page 0x00020100

nand0: MTD Erase failure: -5
nand_erase: attempt to erase a bad block at page 0x00020140

nand0: MTD Erase failure: -5
nand_erase: attempt to erase a bad block at page 0x00020180

nand0: MTD Erase failure: -5
nand_erase: attempt to erase a bad block at page 0x000201c0

nand0: MTD Erase failure: -5
Erasing at 0x10100000 -- 0% complete. Erasing at 0x10280000 -- 1% complete. Erasing at 0x10500000 -- 2% complete. Erasing at 0x107a0000 -- 3% complete. Erasing at 0x10a20000 -- 4% complete. Erasing at 0x10cc0000 -- 5% complete. Erasing at 0x10f40000 -- 6% complete. Erasing at 0x111e0000 -- 7% complete. Erasing at 0x11460000 -- 8% complete. Erasing at 0x11700000 -- 9% complete. Erasing at 0x11980000 -- 10% complete. Erasing at 0x11c20000 -- 11% complete. Erasing at 0x11ea0000 -- 12% complete. Erasing at 0x12140000 -- 13% complete. Erasing at 0x123c0000 -- 14% complete. Erasing at 0x12660000 -- 15% complete. Erasing at 0x128e0000 -- 16% complete. Erasing at 0x12b80000 -- 17% complete. Erasing at 0x12e00000 -- 18% complete. Erasing at 0x130a0000 -- 19% complete. Erasing at 0x13320000 -- 20% complete. Erasing at 0x135c0000 -- 21% complete. Erasing at 0x13840000 -- 22% complete. Erasing at 0x13ae0000 -- 23% complete. Erasing at 0x13d60000 -- 24% complete. Erasing at 0x13fe0000 -- 25% complete. Erasing at 0x14280000 -- 26% complete. Erasing at 0x14500000 -- 27% complete. Erasing at 0x147a0000 -- 28% complete. Erasing at 0x14a20000 -- 29% complete. Erasing at 0x14cc0000 -- 30% complete. Erasing at 0x14f40000 -- 31% complete. Erasing at 0x151e0000 -- 32% complete. Erasing at 0x15460000 -- 33% complete. Erasing at 0x15700000 -- 34% complete. Erasing at 0x15980000 -- 35% complete. Erasing at 0x15c20000 -- 36% complete. Erasing at 0x15ea0000 -- 37% complete. Erasing at 0x16140000 -- 38% complete. Erasing at 0x163c0000 -- 39% complete. Erasing at 0x16660000 -- 40% complete. Erasing at 0x168e0000 -- 41% complete. Erasing at 0x16b80000 -- 42% complete. Erasing at 0x16e00000 -- 43% complete. Erasing at 0x170a0000 -- 44% complete. Erasing at 0x17320000 -- 45% complete. Erasing at 0x175c0000 -- 46% complete. Erasing at 0x17840000 -- 47% complete. Erasing at 0x17ae0000 -- 48% complete. Erasing at 0x17d60000 -- 49% complete. Erasing at 0x17fe0000 -- 50% complete. Erasing at 0x18280000 -- 51% complete. Erasing at 0x18500000 -- 52% complete. Erasing at 0x187a0000 -- 53% complete. Erasing at 0x18a20000 -- 54% complete. Erasing at 0x18cc0000 -- 55% complete. Erasing at 0x18f40000 -- 56% complete. Erasing at 0x191e0000 -- 57% complete. Erasing at 0x19460000 -- 58% complete. Erasing at 0x19700000 -- 59% complete. Erasing at 0x19980000 -- 60% complete. Erasing at 0x19c20000 -- 61% complete. Erasing at 0x19ea0000 -- 62% complete. Erasing at 0x1a140000 -- 63% complete. Erasing at 0x1a3c0000 -- 64% complete. Erasing at 0x1a660000 -- 65% complete. Erasing at 0x1a8e0000 -- 66% complete. Erasing at 0x1ab80000 -- 67% complete. Erasing at 0x1ae00000 -- 68% complete. Erasing at 0x1b0a0000 -- 69% complete. Erasing at 0x1b320000 -- 70% complete. Erasing at 0x1b5c0000 -- 71% complete. Erasing at 0x1b840000 -- 72% complete. Erasing at 0x1bae0000 -- 73% complete. Erasing at 0x1bd60000 -- 74% complete. Erasing at 0x1bfe0000 -- 75% complete. Erasing at 0x1c280000 -- 76% complete. Erasing at 0x1c500000 -- 77% complete. Erasing at 0x1c7a0000 -- 78% complete. Erasing at 0x1ca20000 -- 79% complete. Erasing at 0x1ccc0000 -- 80% complete. Erasing at 0x1cf40000 -- 81% complete. Erasing at 0x1d1e0000 -- 82% complete. Erasing at 0x1d460000 -- 83% complete. Erasing at 0x1d700000 -- 84% complete. Erasing at 0x1d980000 -- 85% complete. Erasing at 0x1dc20000 -- 86% complete. Erasing at 0x1dea0000 -- 87% complete. Erasing at 0x1e140000 -- 88% complete. Erasing at 0x1e3c0000 -- 89% complete. Erasing at 0x1e660000 -- 90% complete. Erasing at 0x1e8e0000 -- 91% complete. Erasing at 0x1eb80000 -- 92% complete. Erasing at 0x1ee00000 -- 93% complete. Erasing at 0x1f0a0000 -- 94% complete. Erasing at 0x1f320000 -- 95% complete. Erasing at 0x1f5c0000 -- 96% complete. Erasing at 0x1f840000 -- 97% complete. Erasing at 0x1fae0000 -- 98% complete. Erasing at 0x1fd60000 -- 99% complete. Erasing at 0x1ffe0000 -- 100% complete.
OK
MPU-001#
MPU-001# nand scrub 10000000 10000000

NAND scrub: device 0 offset 0x10000000, size 0x10000000
Warning: scrub option will erase all factory set bad blocks!
There is no reliable way to recover them.
Use this command only for testing purposes if you
are sure of what you are doing!

Really scrub this NAND flash? <y/N>
y Erasing at 0x10000000 -- 0% complete. Erasing at 0x10280000 -- 1% complete. Erasing at 0x10500000 -- 2% complete. Erasing at 0x107a0000 -- 3% complete. Erasing at 0x10a20000 -- 4% complete. Erasing at 0x10cc0000 -- 5% complete. Erasing at 0x10f40000 -- 6% complete. Erasing at 0x111e0000 -- 7% complete. Erasing at 0x11460000 -- 8% complete. Erasing at 0x11700000 -- 9% complete. Erasing at 0x11980000 -- 10% complete. Erasing at 0x11c20000 -- 11% complete. Erasing at 0x11ea0000 -- 12% complete. Erasing at 0x12140000 -- 13% complete. Erasing at 0x123c0000 -- 14% complete. Erasing at 0x12660000 -- 15% complete. Erasing at 0x128e0000 -- 16% complete. Erasing at 0x12b80000 -- 17% complete. Erasing at 0x12e00000 -- 18% complete. Erasing at 0x130a0000 -- 19% complete. Erasing at 0x13320000 -- 20% complete. Erasing at 0x135c0000 -- 21% complete. Erasing at 0x13840000 -- 22% complete. Erasing at 0x13ae0000 -- 23% complete. Erasing at 0x13d60000 -- 24% complete. Erasing at 0x13fe0000 -- 25% complete. Erasing at 0x14280000 -- 26% complete. Erasing at 0x14500000 -- 27% complete. Erasing at 0x147a0000 -- 28% complete. Erasing at 0x14a20000 -- 29% complete. Erasing at 0x14cc0000 -- 30% complete. Erasing at 0x14f40000 -- 31% complete. Erasing at 0x151e0000 -- 32% complete. Erasing at 0x15460000 -- 33% complete. Erasing at 0x15700000 -- 34% complete. Erasing at 0x15980000 -- 35% complete. Erasing at 0x15c20000 -- 36% complete. Erasing at 0x15ea0000 -- 37% complete. Erasing at 0x16140000 -- 38% complete. Erasing at 0x163c0000 -- 39% complete. Erasing at 0x16660000 -- 40% complete. Erasing at 0x168e0000 -- 41% complete. Erasing at 0x16b80000 -- 42% complete. Erasing at 0x16e00000 -- 43% complete. Erasing at 0x170a0000 -- 44% complete. Erasing at 0x17320000 -- 45% complete. Erasing at 0x175c0000 -- 46% complete. Erasing at 0x17840000 -- 47% complete. Erasing at 0x17ae0000 -- 48% complete. Erasing at 0x17d60000 -- 49% complete. Erasing at 0x17fe0000 -- 50% complete. Erasing at 0x18280000 -- 51% complete. Erasing at 0x18500000 -- 52% complete. Erasing at 0x187a0000 -- 53% complete. Erasing at 0x18a20000 -- 54% complete. Erasing at 0x18cc0000 -- 55% complete. Erasing at 0x18f40000 -- 56% complete. Erasing at 0x191e0000 -- 57% complete. Erasing at 0x19460000 -- 58% complete. Erasing at 0x19700000 -- 59% complete. Erasing at 0x19980000 -- 60% complete. Erasing at 0x19c20000 -- 61% complete. Erasing at 0x19ea0000 -- 62% complete. Erasing at 0x1a140000 -- 63% complete. Erasing at 0x1a3c0000 -- 64% complete. Erasing at 0x1a660000 -- 65% complete. Erasing at 0x1a8e0000 -- 66% complete. Erasing at 0x1ab80000 -- 67% complete. Erasing at 0x1ae00000 -- 68% complete. Erasing at 0x1b0a0000 -- 69% complete. Erasing at 0x1b320000 -- 70% complete. Erasing at 0x1b5c0000 -- 71% complete. Erasing at 0x1b840000 -- 72% complete. Erasing at 0x1bae0000 -- 73% complete. Erasing at 0x1bd60000 -- 74% complete. Erasing at 0x1bfe0000 -- 75% complete. Erasing at 0x1c280000 -- 76% complete. Erasing at 0x1c500000 -- 77% complete. Erasing at 0x1c7a0000 -- 78% complete. Erasing at 0x1ca20000 -- 79% complete. Erasing at 0x1ccc0000 -- 80% complete. Erasing at 0x1cf40000 -- 81% complete. Erasing at 0x1d1e0000 -- 82% complete. Erasing at 0x1d460000 -- 83% complete. Erasing at 0x1d700000 -- 84% complete. Erasing at 0x1d980000 -- 85% complete. Erasing at 0x1dc20000 -- 86% complete. Erasing at 0x1dea0000 -- 87% complete. Erasing at 0x1e140000 -- 88% complete. Erasing at 0x1e3c0000 -- 89% complete. Erasing at 0x1e660000 -- 90% complete. Erasing at 0x1e8e0000 -- 91% complete. Erasing at 0x1eb80000 -- 92% complete. Erasing at 0x1ee00000 -- 93% complete. Erasing at 0x1f0a0000 -- 94% complete. Erasing at 0x1f320000 -- 95% complete. Erasing at 0x1f5c0000 -- 96% complete. Erasing at 0x1f840000 -- 97% complete. Erasing at 0x1fae0000 -- 98% complete. Erasing at 0x1fd60000 -- 99% complete. Erasing at 0x1ffe0000 -- 100% complete.
OK
MPU-001# nand dump 100e0000
Page 100e0000 dump:
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
OOB:
ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff
MPU-001# boot
Booting from network ...
link up on port 0, speed 100, full duplex
BOOTP broadcast 1
DHCP client bound to address 192.168.6.18
link up on port 0, speed 100, full duplex
Using cpsw device
TFTP from server 192.168.6.168; our IP address is 192.168.6.18
Filename 'uImage'.
Load address: 0x80007fc0
Loading: *#################################################################
#################################################################
#################################################################
#################################################################
#################################################################
#################################################################
#################################################################
#################################################################
#################################################################
###################################
done
Bytes transferred = 3173736 (306d68 hex)
## Booting kernel from Legacy Image at 80007fc0 ...
Image Name: Linux-3.2.0
Image Type: ARM Linux Kernel Image (uncompressed)
Data Size: 3173672 Bytes = 3 MiB
Load Address: 80008000
Entry Point: 80008000
Verifying Checksum ... OK
XIP Kernel Image ... OK
OK

Starting kernel ...

Uncompressing Linux... done, booting the kernel.
[ 0.000000] Initializing cgroup subsys cpuset
[ 0.000000] Initializing cgroup subsys cpu
[ 0.000000] Linux version 3.2.0 (lizq@ubuntu10044) (gcc version 4.5.3 20110311 (prerelease) (GCC) ) #6 Thu Aug 23 17:37:11 CST 2012
[ 0.000000] CPU: ARMv7 Processor [413fc082] revision 2 (ARMv7), cr=10c53c7d
[ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
[ 0.000000] Machine: am335xevm
[ 0.000000] Memory policy: ECC disabled, Data cache writeback
[ 0.000000] AM335X ES1.0 (sgx neon )
[ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 65024
[ 0.000000] Kernel command line: console=ttyO0,115200n8 run_hardware_tests spi_autoboot_flag=0 root=/dev/nfs nfsroot=192.168.6.168:/local/tftpboot/rootfs_full,nolock rw ip=dhcp
[ 0.000000] PID hash table entries: 1024 (order: 0, 4096 bytes)
[ 0.000000] Dentry cache hash table entries: 32768 (order: 5, 131072 bytes)
[ 0.000000] Inode-cache hash table entries: 16384 (order: 4, 65536 bytes)
[ 0.000000] allocated 1048576 bytes of page_cgroup
[ 0.000000] please try 'cgroup_disable=memory' option if you don't want memory cgroups
[ 0.000000] Memory: 256MB = 256MB total
[ 0.000000] Memory: 252252k/252252k available, 9892k reserved, 0K highmem
[ 0.000000] Virtual kernel memory layout:
[ 0.000000] vector : 0xffff0000 - 0xffff1000 ( 4 kB)
[ 0.000000] fixmap : 0xfff00000 - 0xfffe0000 ( 896 kB)
[ 0.000000] vmalloc : 0xd0800000 - 0xff000000 ( 744 MB)
[ 0.000000] lowmem : 0xc0000000 - 0xd0000000 ( 256 MB)
[ 0.000000] modules : 0xbf000000 - 0xc0000000 ( 16 MB)
[ 0.000000] .text : 0xc0008000 - 0xc059b000 (5708 kB)
[ 0.000000] .init : 0xc059b000 - 0xc05d9000 ( 248 kB)
[ 0.000000] .data : 0xc05da000 - 0xc063ddd0 ( 400 kB)
[ 0.000000] .bss : 0xc063ddf4 - 0xc066c0ac ( 185 kB)
[ 0.000000] NR_IRQS:396
[ 0.000000] IRQ: Found an INTC at 0xfa200000 (revision 5.0) with 128 interrupts
[ 0.000000] Total of 128 interrupts on 1 active controller
[ 0.000000] OMAP clockevent source: GPTIMER2 at 24000000 Hz
[ 0.000000] OMAP clocksource: GPTIMER1 at 32768 Hz
[ 0.000000] sched_clock: 32 bits at 32kHz, resolution 30517ns, wraps every 131071999ms
[ 0.000000] Console: colour dummy device 80x30
[ 0.000152] Calibrating delay loop... 718.02 BogoMIPS (lpj=3590144)
[ 0.058929] pid_max: default: 32768 minimum: 301
[ 0.059051] Security Framework initialized
[ 0.059143] Mount-cache hash table entries: 512
[ 0.059539] Initializing cgroup subsys debug
[ 0.059539] Initializing cgroup subsys cpuacct
[ 0.059570] Initializing cgroup subsys memory
[ 0.059600] Initializing cgroup subsys devices
[ 0.059631] Initializing cgroup subsys freezer
[ 0.059631] Initializing cgroup subsys blkio
[ 0.059692] CPU: Testing write buffer coherency: ok
[ 0.060546] devtmpfs: initialized
[ 0.079986] omap_hwmod: pruss: failed to hardreset
[ 0.081176] print_constraints: dummy:
[ 0.081542] NET: Registered protocol family 16
[ 0.083770] OMAP GPIO hardware version 0.1
[ 0.086273] omap_mux_init: Add partition: #1: core, flags: 0
[ 0.088500] omap_i2c.1: alias fck already exists
[ 0.089538] omap2_mcspi.1: alias fck already exists
[ 0.089782] omap2_mcspi.2: alias fck already exists
[ 0.089965] omap_init_sham: platform not supported
[ 0.089996] omap_init_aes: platform not supported
[ 0.090057] edma.0: alias fck already exists
[ 0.090087] edma.0: alias fck already exists
[ 0.090118] edma.0: alias fck already exists
[ 0.111328] bio: create slab <bio-0> at 0
[ 0.113555] SCSI subsystem initialized
[ 0.115264] usbcore: registered new interface driver usbfs
[ 0.115600] usbcore: registered new interface driver hub
[ 0.115814] usbcore: registered new device driver usb
[ 0.115966] musb-ti81xx musb-ti81xx: musb0, board_mode=0x13, plat_mode=0x3
[ 0.116271] musb-ti81xx musb-ti81xx: musb1, board_mode=0x13, plat_mode=0x1
[ 0.128997] omap_i2c omap_i2c.1: bus 1 rev2.4.0 at 100 kHz
[ 0.130065] tps65910 1-002d: could not be detected
[ 0.132171] Switching to clocksource gp timer
[ 0.151306] musb-hdrc: version 6.0, ?dma?, otg (peripheral+host)
[ 0.151489] musb-hdrc musb-hdrc.0: dma type: pio
[ 0.151824] MUSB0 controller's USBSS revision = 4ea20800
[ 0.152526] musb-hdrc musb-hdrc.0: USB OTG mode controller at d083c000 using PIO, IRQ 18
[ 0.152709] musb-hdrc musb-hdrc.1: dma type: pio
[ 0.153015] MUSB1 controller's USBSS revision = 4ea20800
[ 0.153137] musb-hdrc musb-hdrc.1: MUSB HDRC host driver
[ 0.153228] musb-hdrc musb-hdrc.1: new USB bus registered, assigned bus number 1
[ 0.153350] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
[ 0.153350] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 0.153381] usb usb1: Product: MUSB HDRC host driver
[ 0.153381] usb usb1: Manufacturer: Linux 3.2.0 musb-hcd
[ 0.153411] usb usb1: SerialNumber: musb-hdrc.1
[ 0.154357] hub 1-0:1.0: USB hub found
[ 0.154388] hub 1-0:1.0: 1 port detected
[ 0.155029] musb-hdrc musb-hdrc.1: USB Host mode controller at d083e800 using PIO, IRQ 19
[ 0.155456] NET: Registered protocol family 2
[ 0.155670] IP route cache hash table entries: 2048 (order: 1, 8192 bytes)
[ 0.156066] TCP established hash table entries: 8192 (order: 4, 65536 bytes)
[ 0.156219] TCP bind hash table entries: 8192 (order: 3, 32768 bytes)
[ 0.156311] TCP: Hash tables configured (established 8192 bind 8192)
[ 0.156341] TCP reno registered
[ 0.156341] UDP hash table entries: 256 (order: 0, 4096 bytes)
[ 0.156372] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
[ 0.156524] NET: Registered protocol family 1
[ 0.156829] RPC: Registered named UNIX socket transport module.
[ 0.156829] RPC: Registered udp transport module.
[ 0.156860] RPC: Registered tcp transport module.
[ 0.156860] RPC: Registered tcp NFSv4.1 backchannel transport module.
[ 0.157073] NetWinder Floating Point Emulator V0.97 (double precision)
[ 0.169372] VFS: Disk quotas dquot_6.5.2
[ 0.169433] Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
[ 0.170623] msgmni has been set to 492
[ 0.174041] alg: No test for stdrng (krng)
[ 0.174133] io scheduler noop registered
[ 0.174163] io scheduler deadline registered
[ 0.174255] io scheduler cfq registered (default)
[ 0.175567] omap_uart.0: ttyO0 at MMIO 0x44e09000 (irq = 72) is a OMAP UART0
[ 0.780944] console [ttyO0] enabled
[ 0.785369] omap_uart.1: ttyO1 at MMIO 0x48022000 (irq = 73) is a OMAP UART1
[ 0.793304] omap_uart.2: ttyO2 at MMIO 0x48024000 (irq = 74) is a OMAP UART2
[ 0.801116] omap_uart.3: ttyO3 at MMIO 0x481a6000 (irq = 44) is a OMAP UART3
[ 0.808990] omap_uart.4: ttyO4 at MMIO 0x481a8000 (irq = 45) is a OMAP UART4
[ 0.816802] omap_uart.5: ttyO5 at MMIO 0x481aa000 (irq = 46) is a OMAP UART5
[ 0.834930] brd: module loaded
[ 0.843658] loop: module loaded
[ 0.847106] i2c-core: driver [tsl2550] using legacy suspend method
[ 0.853576] i2c-core: driver [tsl2550] using legacy resume method
[ 0.860015] at24 1-0050: 32768 byte 24c256 EEPROM, writable, 64 bytes/write
[ 0.869781] ID EEPROM: detected.
[ 0.873168] ID EEPROM: TAG not valid
[ 0.877777] tps65217 1-0024: TPS65217 ID 0xf version 1.1
[ 0.885467] print_constraints: DCDC1: 900 <--> 1800 mV at 1800 mV
[ 0.894073] print_constraints: DCDC2: 900 <--> 3300 mV at 1275 mV
[ 0.902618] print_constraints: DCDC3: 900 <--> 1500 mV at 1100 mV
[ 0.911224] print_constraints: LDO1: 1000 <--> 3300 mV at 1800 mV
[ 0.919799] print_constraints: LDO2: 900 <--> 3300 mV at 3300 mV
[ 0.928253] print_constraints: LDO3: 1800 <--> 3300 mV at 3300 mV
[ 0.936798] print_constraints: LDO4: 1800 <--> 3300 mV at 3300 mV
[ 0.943878] Configure SYSBOOT Enable pin...
[ 0.948242] Configure NANDBOOT Control pin...
[ 0.952789] Configure NAND_WPn pin...
[ 0.957061] omap_hsmmc.0: alias fck already exists
[ 0.964263] omap-gpmc omap-gpmc: GPMC revision 6.0
[ 0.969268] Registering NAND on CS0
[ 0.973663] d_can.0: alias fck already exists
[ 0.979461] at24 1-0051: 32768 byte 24c256 EEPROM, writable, 64 bytes/write
[ 0.987609] BOOT EEPROM: detected.
[ 0.993469] mtdoops: mtd device (mtddev=name/number) must be supplied
[ 1.000366] m25p80 spi1.0: w25q128 (16384 Kbytes)
[ 1.005554] Creating 10 MTD partitions on "spi_flash":
[ 1.010925] 0x000000000000-0x000000080000 : "SPL/MLO(Golden,RO)"
[ 1.018859] 0x000000080000-0x000000100000 : "U-Boot (Golden,RO)"
[ 1.026641] 0x000000100000-0x000000500000 : "Kernel (Golden,RO)"
[ 1.034393] 0x000000500000-0x000000580000 : "U-Boot (Bank-A)"
[ 1.041839] 0x000000580000-0x000000600000 : "U-Boot (Bank-B)"
[ 1.049591] 0x000000600000-0x000000680000 : "U-Boot Env (Bank-A)"
[ 1.057434] 0x000000680000-0x000000700000 : "U-Boot Env (Bank-B)"
[ 1.065185] 0x000000700000-0x000000b00000 : "Kernel (Bank-A)"
[ 1.072570] 0x000000b00000-0x000000f00000 : "Kernel (Bank-B)"
[ 1.080047] 0x000000f00000-0x000001000000 : "Reserved (not used)"
[ 1.088043] m25p80 spi2.0: w25q128 (16384 Kbytes)
[ 1.093231] Creating 1 MTD partitions on "spi_flash":
[ 1.098510] 0x000000000000-0x000001000000 : "RAMDISK"
[ 1.105865] omap2-nand driver initializing
[ 1.110534] NAND device: Manufacturer ID: 0x2c, Chip ID: 0xcc (Micron NAND 512MiB 3,3V 16-bit)
[ 1.119567] chipsize = 512 MB, writesize = 2048, busw = 2, oobsize = 64, erasesize = 131072
[ 1.128295] >>> chip->ecc.mode = 2, mtd->oobsize = 64
[ 1.133789] Creating 2 MTD partitions on "omap2-nand.0":
[ 1.139312] 0x000000000000-0x000010000000 : "UBIFS (Bank-A)"
[ 1.253234] 0x000010000000-0x000020000000 : "UBIFS (Bank-B)"
[ 1.367187] OneNAND driver initializing
[ 1.372711] CAN device driver interface
[ 1.376770] CAN bus driver for Bosch D_CAN controller 1.0
[ 1.383270] d_can d_can.0: device registered (irq=52, irq_obj=53)
[ 1.432830] davinci_mdio davinci_mdio.0: davinci mdio revision 1.6
[ 1.439270] davinci_mdio davinci_mdio.0: detected phy mask fffffffc
[ 1.447113] davinci_mdio.0: probed
[ 1.450683] davinci_mdio davinci_mdio.0: phy[0]: device 0:00, driver SMSC LAN8710/LAN8720
[ 1.459228] davinci_mdio davinci_mdio.0: phy[1]: device 0:01, driver SMSC LAN8710/LAN8720
[ 1.468109] usbcore: registered new interface driver zd1201
[ 1.474121] usbcore: registered new interface driver cdc_ether
[ 1.480377] usbcore: registered new interface driver cdc_eem
[ 1.486450] usbcore: registered new interface driver dm9601
[ 1.492279] cdc_ncm: 04-Aug-2011
[ 1.495819] usbcore: registered new interface driver cdc_ncm
[ 1.501708] Initializing USB Mass Storage driver...
[ 1.507049] usbcore: registered new interface driver usb-storage
[ 1.513305] USB Mass Storage support registered.
[ 1.518310] gadget: Mass Storage Function, version: 2009/09/11
[ 1.524505] gadget: Number of LUNs=1
[ 1.528320] lun0: LUN: removable file: (no medium)
[ 1.533447] gadget: Mass Storage Gadget, version: 2009/09/11
[ 1.539428] gadget: userspace failed to provide iSerialNumber
[ 1.545532] gadget: g_mass_storage ready
[ 1.549713] musb-hdrc musb-hdrc.0: MUSB HDRC host driver
[ 1.555297] musb-hdrc musb-hdrc.0: new USB bus registered, assigned bus number 2
[ 1.563140] usb usb2: New USB device found, idVendor=1d6b, idProduct=0002
[ 1.570220] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 1.577758] usb usb2: Product: MUSB HDRC host driver
[ 1.582946] usb usb2: Manufacturer: Linux 3.2.0 musb-hcd
[ 1.588470] usb usb2: SerialNumber: musb-hdrc.0
[ 1.594177] hub 2-0:1.0: USB hub found
[ 1.598114] hub 2-0:1.0: 1 port detected
[ 1.603515] mousedev: PS/2 mouse device common for all mice
[ 1.610565] omap_rtc omap_rtc: rtc core: registered omap_rtc as rtc0
[ 1.617279] omap_rtc: already running
[ 1.621276] i2c /dev entries driver
[ 1.627502] OMAP Watchdog Timer Rev 0x01: initial timeout 60 sec
[ 1.635284] cpuidle: using governor ladder
[ 1.640045] cpuidle: using governor menu
[ 1.647460] omap_sham_mod_init: loading omap-sham driver
[ 1.653015] omap_sham_mod_init: Unsupported cpu
[ 1.657745] omap_aes_mod_init: loading omap-aes driver
[ 1.663116] omap_aes_mod_init: Unsupported cpu
[ 1.670501] usbcore: registered new interface driver usbhid
[ 1.676361] usbhid: USB HID core driver
[ 1.680358] oprofile: hardware counters not available
[ 1.685638] oprofile: using timer interrupt.
[ 1.690246] Netfilter messages via NETLINK v0.30.
[ 1.695281] nf_conntrack version 0.5.0 (3941 buckets, 15764 max)
[ 1.701782] ctnetlink v0.93: registering with nfnetlink.
[ 1.707550] ip_tables: (C) 2000-2006 Netfilter Core Team
[ 1.713226] TCP cubic registered
[ 1.716583] Initializing XFRM netlink socket
[ 1.721191] NET: Registered protocol family 10
[ 1.726593] Mobile IPv6
[ 1.729187] ip6_tables: (C) 2000-2006 Netfilter Core Team
[ 1.735107] IPv6 over IPv4 tunneling driver
[ 1.741363] NET: Registered protocol family 17
[ 1.746063] can: controller area network core (rev 20090105 abi 8)
[ 1.752655] NET: Registered protocol family 29
[ 1.757324] can: raw protocol (rev 20090105)
[ 1.761779] can: broadcast manager protocol (rev 20090105 t)
[ 1.767730] Registering the dns_resolver key type
[ 1.772705] VFP support v0.3: implementor 41 architecture 3 part 30 variant c rev 3
[ 1.780700] ThumbEE CPU extension supported.
[ 1.785217] mux: Failed to setup hwmod io irq -22
[ 1.790802] Power Management for AM33XX family
[ 1.795654] Trying to load am335x-pm-firmware.bin (60 secs timeout)
[ 1.802307] Copied the M3 firmware to UMEM
[ 1.810150] clock: disabling unused clocks to save power
[ 1.821166] Detected MACID=0:18:31:89:59:bf
[ 1.827575] omap_rtc omap_rtc: setting system clock to 2000-01-01 01:25:20 UTC (946689920)
[ 1.839294] net eth0: CPSW phy found : id is : 0x7c0f1
[ 1.845855] net eth0: CPSW phy found : id is : 0x7c0f1
[ 1.852691] ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 1.883819] mmc0: host does not support reading read-only switch. assuming write-enable.
[ 1.894775] mmc0: new high speed SDHC card at address 1234
[ 1.901214] mmcblk0: mmc0:1234 SA04G 3.63 GiB
[ 1.908386] mmcblk0: p1 p2
[ 3.834014] PHY: 0:01 - Link is Up - 0/Half
[ 3.844024] PHY: 0:01 - Link is Down
[ 4.833984] PHY: 0:00 - Link is Up - 100/Full
[ 4.853576] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[ 4.873657] Sending DHCP requests ., OK
[ 6.013916] IP-Config: Got DHCP answer from 192.168.6.1, my address is 192.168.6.18
[ 6.022125] IP-Config: Complete:
[ 6.025512] device=eth0, addr=192.168.6.18, mask=255.255.255.0, gw=192.168.6.1,
[ 6.033325] host=192.168.6.18, domain=, nis-domain=(none),
[ 6.039489] bootserver=192.168.6.1, rootserver=192.168.6.168, rootpath=
[ 6.064544] VFS: Mounted root (nfs filesystem) on device 0:15.
[ 6.071014] devtmpfs: mounted
[ 6.074493] Freeing init memory: 248K
[ 6.288116] systemd[1]: systemd 37 running in system mode. (+PAM +LIBWRAP -AUDIT -SELINUX +SYSVINIT -LIBCRYPTSETUP; angstrom)

Welcome to [1;35mThe Ångström Distribution[0m!

[ 6.324981] systemd[1]: Set hostname to <MPU-001>.
Starting Runtime Directory...
Starting Media Directory...
Starting Remount API VFS...
Starting Lock Directory...
Starting Debug File System...
Starting POSIX Message Queue File System...
Started Load Kernel Modules [[1;32m OK [0m]
Started FUSE Control File System [[1;32m OK [0m]
Started Set Up Additional Binary Formats [[1;32m OK [0m]
Started Configuration File System [[1;32m OK [0m]
Starting udev Coldplug all Devices...
Starting udev Kernel Device Manager...
Starting Syslog Kernel Log Buffer Bridge...
Started Syslog Kernel Log Buffer Bridge [[1;32m OK [0m]
Starting File System Check on Root Device...
[ 6.852325] udevd[651]: starting version 175
Started Huge Pages File System [[1;32m OK [0m]
Starting Security File System...
Started Apply Kernel Variables [[1;32m OK [0m]
Started udev Kernel Device Manager [[1;32m OK [0m]
Started Runtime Directory [[1;32m OK [0m]
Started Media Directory [[1;32m OK [0m]
Started Remount API VFS [[1;32m OK [0m]
Started Lock Directory [[1;32m OK [0m]
Started Debug File System [[1;32m OK [0m]
Started POSIX Message Queue File System [[1;32m OK [0m]
Started File System Check on Root Device [[1;32m OK [0m]
Started Security File System [[1;32m OK [0m]
Starting Remount Root FS...
Starting STDOUT Syslog Bridge...
Started STDOUT Syslog Bridge [[1;32m OK [0m]
Started Remount Root FS [[1;32m OK [0m]
Started Opkg first boot configure [[1;32m OK [0m]
Starting /tmp...
Started Machine ID first boot configure [[1;32m OK [0m]
Started /tmp [[1;32m OK [0m]
Starting Recreate Volatile Files and Directories...
Starting Load Random Seed...
Started Load Random Seed [[1;32m OK [0m]
Started Recreate Volatile Files and Directories [[1;32m OK [0m]
Started SSH Key Generation [[1;32m OK [0m]
Starting System Logging Service...
Starting Login Service...
Starting Permit User Sessions...
Starting D-Bus System Message Bus...
Starting Avahi mDNS/DNS-SD Stack...
Started Permit User Sessions [[1;32m OK [0m]
Stopping Syslog Kernel Log Buffer Bridge...
Stopped Syslog Kernel Log Buffer Bridge [[1;32m OK [0m]
Started System Logging Service [[1;32m OK [0m]
Started D-Bus System Message Bus [[1;32m OK [0m]
Started Avahi mDNS/DNS-SD Stack [[1;32m OK [0m]
Started Login Service [[1;32m OK [0m]
Started udev Coldplug all Devices [[1;32m OK [0m]
Starting Serial Getty on ttyO0...
Started Serial Getty on ttyO0 [[1;32m OK [0m]
Starting Boot Status Update Daemon...
Started Boot Status Update Daemon [[1;32m OK [0m]
[ 9.439270] systemd[1]: Startup finished in 6s 334ms 911us (kernel) + 3s 100ms 372us (userspace) = 9s 435ms 283us.

.---O---.
| | .-. o o
| | |-----.-----.-----.| | .----..-----.-----.
| | | __ | ---'| '--.| .-'| | |
| | | | | |--- || --'| | | ' | | | |
'---'---'--'--'--. |-----''----''--' '-----'-'-'-'
-' |
'---'

The Angstrom Distribution MPU-001 ttyO0

Angstrom v2012.01-core - Kernel 3.2.0

MPU-001 login: root
Password:
Last login: Sat Jan 1 01:21:01 GMT 2000 on ttyO0
root@MPU-001:~# nandtest -m -p 1 -o 0 -l 0x100000 /dev/mtd12
ECC corrections: 0
ECC failures : 0
Bad blocks : 0
BBT blocks : 0
00000000: erasing... 00000000: writing... 00000000: reading... 00000000: checking... 00020000: erasing... 00020000: writing... 00020000: reading... 00020000: checking... 00040000: erasing... 00040000: writing... 00040000: reading... 00040000: checking... 00060000: erasing... 00060000: writing... 00060000: reading... 00060000: checking... 00080000: erasing... 00080000: writing... 00080000: reading... 00080000: checking... 000a0000: erasing... 000a0000: writing... 000a0000: reading... 000a0000: checking... 000c0000: erasing... 000c0000: writing... 000c0000: reading... 000c0000: checking... 000e0000: erasing... 000e0000: writing... 000e0000: reading... 000e0000: checking...
Finished pass 1 successfully
root@MPU-001:~# reboot
Stopping System Logging Service...
Stopping Login Service...
Stopping Serial Getty on ttyO0...
Stopping D-Bus System Message Bus...
Stopping Avahi mDNS/DNS-SD Stack...
Starting Save Random Seed...
Stopped Login Service [[1;32m OK [0m]
Starting Syslog Kernel Log Buffer Bridge...
Started Syslog Kernel Log Buffer Bridge [[1;32m OK [0m]
Stopped Serial Getty on ttyO0 [[1;32m OK [0m]
Stopped Avahi mDNS/DNS-SD Stack [[1;32m OK [0m]
Stopped System Logging Service [[1;32m OK [0m]
[ 33.900054] avahi-daemon[867]: Got SIGTERM, quitting.
Stopped D-Bus System Message Bus [[1;32m[ 33.914093] avahi-daemon[867]: Leaving mDNS multicast group on interface eth0.IPv4 with address 192.168.6.18.
OK [0m]
[ 33.926269] avahi-daemon[867]: avahi-daemon 0.6.30 exiting.
Started Save Random Seed [[1;32m OK [0m]
Stopping Permit User Sessions...
Stopped Permit User Sessions [[1;32m OK [0m]
Starting Notify Audit System and Update UTMP about System Shutdown...
Stopping /tmp...
Stopping Runtime Directory...
Stopping Media Directory...
[ 34.103271] umount[1295]: umount: /var/run: device is busy.
Stopping Lock Directory...
[ 34.123107] umount[1295]: (In some cases useful info about processes that use
Stopped /tmp [[1;32m OK [0m]
[ 34.169281] umount[1295]: the device is found by lsof(8) or fuser(1))
[ 34.176910] systemd[1]: var-run.mount mount process exited, code=exited status=1
Stopped Runtime Directory [[1;32m OK [0m]
Stopped Media Directory [[1;32m OK [0m]
Stopped Lock Directory [[1;32m OK [0m]
Stopping Remount API VFS...
Stopped Remount API VFS [[1;32m OK [0m]
Stopping Remount Root FS...
Stopped Remount Root FS [[1;32m OK [0m]
[ 34.382385] systemd[1]: Shutting down.
[ 34.442474] systemd-cgroups-agent[1305]: Failed to get D-Bus connection: Failed to connect to socket /org/freedesktop/systemd1/private: Connection refused
Sending SIGTERM to remaining processes...
Sending SIGKILL to remaining processes...
Unmounting file systems.
Unmounted /sys/kernel/security.
Unmounted /dev/mqueue.
Unmounted /sys/kernel/debug.
Unmounted /var/run.
Disabling swaps.
Detachin[ 34.495666] musb-hdrc musb-hdrc.1: remove, state 1
g loop devices. [ 34.500762] usb usb1: USB disconnect, device number 1

Detaching DM de[ 34.508270] musb-hdrc musb-hdrc.1: USB bus 1 deregistered
vices.
[ 34.514770] Restarting system.

U-Boot SPL 2011.09-local (Aug 23 2012 - 14:04:22)
Texas Instruments Revision detection unimplemented
BOOTEE: U-Boot boots on [0].[0].
Programming BOOTEE passed.
==[SPI][0B]==
SF: Detected W25Q128 with page size 4 KiB, total 16 MiB

U-Boot 2011.09-local (Aug 23 2012 - 14:04:22)

I2C: ready
DRAM: 256 MiB
WARNING: Caches not enabled
NAND: HW ECC Hamming Code selected
512 MiB
MMC: OMAP SD/MMC: 0
SF: Detected W25Q128 with page size 4 KiB, total 16 MiB
HW ECC BCH8 Selected
==[SPI][0B]==
BOOTEE: U-Boot boots on [0].[0] SUCCESS.
Programming BOOTEE passed.
Net: cpsw
Hit any key to stop autoboot: 3 0
MPU-001# nand dump 100e0000
Page 100e0000 dump:
a9 d0 56 e7 a0 e7 28 a2 47 12 c0 40 78 15 9c 89
e5 d1 d4 36 f1 db cc 09 46 b7 a9 d2 ef de 11 98
ae 67 7f 4e 4f a7 f1 96 b9 b1 d6 31 c7 73 bb ac
44 8f e2 35 6a ae 3e b1 66 e7 83 55 c5 94 ed 74
fc 6c c2 4b 13 b3 e1 cc 65 b8 fe 2c 2b b9 d8 6f
48 bb a4 b3 69 e2 64 cf c9 e7 24 8f 7c 11 03 78
7d c5 c3 90 79 a4 5d de 5c 5b 0a 87 14 e2 f6 5c
9d 9a 0f 07 7c 73 d6 46 5b fb d5 d7 0c d8 4f 8a
9d 12 1a 16 b6 77 f4 13 d2 fe 9a e6 e1 91 43 7e
2b 52 85 a8 c6 5c ee 21 57 c3 f8 63 9b 47 ed 38
59 08 4f 0f 7f 43 22 52 42 bd 38 23 4e 7b a1 79
ce 27 21 94 83 0f b5 da d2 ad 3d 6d f4 2b a6 4d
33 f5 5c b2 38 7f 04 7a 3c 3d 9d 8a b8 3f 03 86
66 25 1a e9 34 cf c3 07 7c 00 74 70 2b 1a bd 5e
0f 1a 11 48 99 15 c2 d5 52 60 5f 0b 9f 62 91 05
87 ac ee bc 7b b1 c3 f8 b1 37 68 dd 52 26 3b 61
40 4c a9 d9 62 6c ae b4 cc 0d bf 6b 6f 51 70 f7
fd 5e b3 78 0f 76 70 c0 ad d9 9d ff ff d9 61 3f
25 0a 18 87 76 c6 3c 42 d3 fb ad 42 4c 1d 39 49
7b ec c2 8a 62 32 4b 10 0b e8 0f 0a c1 70 49 e7
7b 61 6e f1 27 aa 34 fa a6 e1 3d f2 ff 76 3c 7a
63 fe 05 c5 30 50 d5 3c 38 e5 46 fa 55 90 e1 d0
f1 4f c2 19 fa f6 13 a0 d7 50 92 d6 c7 ce 51 2a
cc 56 ef fd a6 c5 39 de aa 7f d8 ff 0f b9 d0 01
09 92 1a 03 88 2d a3 5f 7e 35 36 45 04 87 6f d0
dd 5e cd 83 23 06 61 cd 86 3a cd 95 f3 9d 96 fc
2f b0 ff b7 de a2 16 5c d8 4c a1 dc d3 10 ac b0
6e 7a 33 92 80 95 5f 06 cf 2c 9c c2 c9 32 bf f8
e3 be af c1 61 c6 1d 39 12 be 15 e6 ce c1 96 3c
3b ca ce bc 5f 2e c2 2e 5a 5e f0 24 91 af 1c 74
6e cc 35 cf 92 52 08 a4 10 1d 8a de de 21 1a 1a
eb e9 d6 4a 17 98 78 71 f7 68 95 88 18 b2 fc 86
7e 31 55 10 83 5d b4 93 7a 3f 71 58 60 8b 72 4b
74 48 95 8b e1 0d fd d8 75 92 60 8d 44 5c 13 c2
8d 68 d2 10 c5 87 a3 3f c6 14 98 26 9f 0a 71 14
53 06 9f 34 13 9c 0c 88 2f 6c 16 73 c8 29 36 55
92 08 65 57 8f 08 97 55 1c 2f 7b bb 39 ec cf 8c
f2 6f c0 05 0b cc 8e 3a 38 a4 ae 00 cd e4 55 5f
ec ba b7 7c c2 4e d1 de 7d 4d 9a b6 39 69 43 2c
d8 03 31 e4 d0 bf 1e 08 63 cc 09 31 b0 5e 90 9d
19 47 19 db 95 ea ba 12 37 54 c9 71 bd 0c 9d 96
0f ce 7a df 8e 98 e8 f1 65 f1 22 15 4f b3 b2 68
fa cb 44 90 b6 fe a2 ed 52 6b 5e 0f 77 fb a5 87
ca 1f 66 58 b8 4e 49 1d 3f 6c 32 8f 1f e5 f7 19
b0 3b a9 66 39 4c 54 8b b7 b2 9b 2f ae 40 b6 78
60 1c d0 18 6b 19 35 aa 85 67 39 a4 4c 31 be fd
6c 67 63 a6 b3 b7 31 6b 6a cc 9a 18 0d 50 90 6d
6c 60 85 d7 79 ba 82 ff 21 bb a3 6e ec 61 6b 59
c9 ce ff 7c 86 30 e7 f0 fd 81 08 0a d1 98 77 3e
f8 fc 15 71 b6 97 70 d7 53 14 45 3f 75 b0 98 3e
7f 97 bb 05 c8 a2 f5 c5 24 fd cf f5 95 46 33 8d
42 49 fe f8 e0 6f cf 33 83 15 73 f8 c5 0b 37 44
a3 f2 49 6b 94 3e 30 b8 3b ff ae d0 45 e1 5d 87
2a 5c 7f 0b cb 4e 3e 4e 63 b1 46 29 bd 7d 6d 60
6f b7 cb 04 f5 fb bc 31 fa 6a 01 3f 4c 5f c6 76
bb 45 81 86 93 c0 d4 f7 71 1a 20 2e 98 8d 8e 07
44 59 0b 3a 54 c8 6b 4e 32 6c 8d 7e cb 53 f5 86
98 76 0c 2c 36 e0 23 a8 fb 43 d6 93 d0 65 9a 15
be a6 4f 13 6e ba 61 a0 26 ef 1f f2 42 14 78 db
8a 85 07 c1 65 2a 69 60 6d 3f f3 3d a4 8e 52 63
34 a1 76 a2 5b d7 42 82 c6 61 74 09 75 ec e4 00
71 eb c1 d7 15 2a 37 82 69 2b bf 0e b9 12 71 ed
b3 e7 8f 0f be d1 91 85 33 05 8e a8 f1 72 a8 63
5d 69 3a 72 93 71 f4 fd 9c b3 0b 55 c5 7c 42 79
63 d1 88 21 a3 19 a6 d6 1e 34 7e 0f a6 27 72 03
90 ac 75 24 1e 69 21 ba 1d 2c 10 e2 a8 52 5b 0b
24 e3 2c c7 fc d3 9d 1a 07 1b 2a ae 42 9c b1 d3
49 27 f7 67 90 18 21 ad 44 31 90 ec 84 eb f7 a8
cf 23 6f cb f6 0c e6 fe 27 10 ac 6a ac 5d 3d f5
84 34 5c 15 4c 7e c2 90 af 52 7c 33 3e 73 db 0d
96 4a d8 8d 56 be 8b 7e ce 37 e8 7b 94 25 70 19
59 cd 2e a5 4b f0 35 fa 43 b1 2e 81 24 09 8e ba
54 66 47 aa 25 d2 28 f3 09 10 6e 9e 35 df b7 8e
ac e5 33 f7 d5 68 f1 18 19 1f 99 3d 29 27 f8 7d
8e 3f 27 b3 12 50 a6 1b 60 15 b9 96 f4 70 24 a0
55 58 97 2b c0 88 43 da a8 dd 17 d1 04 0f 4e 92
4f 75 45 61 c5 ec 7c 26 01 36 bc f5 a6 e0 95 fc
38 2c 27 f9 b4 6a d3 5c 47 ea 2d 4c fa 7b de 49
f1 24 aa b6 10 26 dc 11 5c 98 06 03 79 9b ff b1
c7 26 aa 7b 90 7d d8 d8 68 05 24 62 81 02 ab 72
26 55 28 36 7b 05 47 d8 9d 4d db 16 e8 da c8 af
00 72 2b 90 f0 03 68 58 08 8c ba 89 8f 65 fb b5
ba 24 ec 35 29 33 0d c6 81 e8 dd 69 c2 a5 19 c2
17 44 53 07 47 bb 5f 4f 48 19 d9 d7 7e d4 8c 38
f8 78 6e 21 ac 7b e8 2d 64 c5 96 26 6a af e9 81
f3 3c 89 3a f7 e8 8a 3f 02 63 16 80 37 a3 b9 30
1b 27 51 c7 a2 39 f4 06 fe 8b 2d 68 3a 16 ea 2e
52 73 68 49 5b f2 89 5d 55 9f de 8d 42 97 bd 5e
be 0e 25 60 48 1a 67 46 a5 94 af df aa 99 0d fc
0c 76 45 67 68 ce c5 be 6e a3 4b b0 3a 08 0e f8
16 34 58 5e 4e bf a5 f3 53 54 d2 fd ed e0 f9 f9
56 3f 60 be 0d 25 7c 7b c8 c7 2c 02 cf 3a fa e6
6e 53 44 bc 12 e9 af 66 3d 82 63 2a 62 5d 23 b8
9c 84 76 a9 a9 f3 25 72 ba 51 74 8a 8b 6f 70 fa
c2 b4 b6 d4 9e 66 3a db e8 9e 06 4a fb 29 02 97
ad 78 40 57 6b 65 c9 26 b6 3d b0 42 ac 20 3c 6e
d4 f2 43 72 58 7d 4e 40 1b 54 8a 16 7d 8c ad 2b
05 ee 82 70 53 4b 96 0a 88 46 4c 35 66 88 a3 3b
7a e6 ad d3 64 fb 13 7f 4f 9e 96 cd 2a 43 f8 2f
31 7a a0 85 c5 36 8f 4d 7d db 82 e3 63 26 1e dd
0c cc b0 70 c7 c4 f0 17 62 86 e4 8c c9 dc bc fb
56 5c 80 1b 92 0f 68 0f ea eb f3 4d 11 11 2a 1d
dd db 8e a5 9f 7e bc 01 04 a0 8d cd 7c 49 c8 d2
a5 48 ed 38 57 55 47 41 40 3a 8e 51 4c b9 6f 29
94 fd ce 33 7b 8a 34 7f 2a c1 4c a6 0b 15 78 b0
5d 65 e8 b5 bb 30 f6 fb 6a 85 4d b6 3e bc e0 d2
b9 ae 05 34 39 39 b3 63 fa ff 0a 05 14 82 b6 72
e8 9e 27 a3 ce 1d 9e 39 a2 eb ef e0 a7 cf b2 60
7e b7 94 b7 f0 47 1a eb 47 24 f0 5b a7 a6 cd 8f
45 f4 32 13 12 d0 4c b4 bc 3c 95 63 0b 47 c4 89
ff 58 40 ef a0 5b da e7 7f cb 42 26 71 10 b5 b6
04 e7 ca 16 b8 16 cb 74 52 60 d7 5e a7 9b e7 a6
f4 28 96 94 83 70 7b 02 3b bd 29 ad cd de 63 d2
c6 2d e8 7e 44 b3 f2 96 13 c9 f4 bb 65 dc 61 59
04 f7 ed 87 68 68 89 a3 25 b2 50 f3 91 b4 c5 57
e1 ad d5 25 61 c7 bc 74 90 b0 2f f5 8c 91 4e 90
88 3b 17 f0 a3 a1 94 c9 53 e4 bc e4 98 81 3b 7a
2e 10 9f 8f d7 5b 04 68 0c 33 5d 98 c4 ac 29 4d
e7 40 3d 8b e1 d1 54 35 b6 10 19 4e 91 55 c8 bf
65 68 4f 3d c3 53 a5 cf 86 02 68 4b ae 91 98 96
d1 d5 21 b3 a7 75 e8 5d 85 01 ab 16 56 74 d5 bc
dc 24 f9 9f 77 9e 6f fe a0 d7 49 4f 68 e1 e5 39
b6 06 ec 5d 7b d4 ba 00 d6 66 16 2c da eb e8 b6
10 e1 55 87 7f c4 85 20 9b ce 6f 03 af 54 3d 66
5a 29 c3 d5 fe 7e d5 d4 e4 eb 00 be d6 e9 74 e6
ca c9 6e 4a 8e f3 6a 29 c2 d9 2d 71 2d 6a d7 87
93 9b 5c 91 19 31 65 fd 1c 66 bb f2 4f 2f d9 19
f8 47 63 86 3a cd b0 fc a6 dd 6e d3 47 45 5a da
OOB:
ff ff a7 93 00 a5 3c 4c
86 38 0b 52 ab 66 22 00
31 a8 fc 0e a1 c2 00 3d
1e 8e a5 d9 bb 00 0c a5
d7 bc 4c 27 f1 8b 01 ef
c7 d8 89 00 9b 1a 75 23
3b 95 b8 c2 76 86 88 21
78 00 ff ff ff ff ff ff
MPU-001# nand bad

Device 0 bad blocks:
10000000
10020000
10040000
10060000
10080000
100a0000
100c0000
100e0000
MPU-001#
MPU-001#

Frisky,

Can you do another experiment? Can you try writing one 2K data(random data ) to the page after erasing and send me the dump?

Hi Renjith, 

This is my test log in u-boot:

U-Boot 2011.09-local (Aug 23 2012 - 14:04:22)

I2C: ready
DRAM: 256 MiB
WARNING: Caches not enabled
NAND: HW ECC Hamming Code selected
512 MiB
MMC: OMAP SD/MMC: 0
SF: Detected W25Q128 with page size 4 KiB, total 16 MiB
HW ECC BCH8 Selected
==[SPI][0B]==
BOOTEE: U-Boot boots on [0].[0] SUCCESS.
Programming BOOTEE passed.
Net: cpsw
Hit any key to stop autoboot: 0
MPU-001# nand scrub 10000000 100000

NAND scrub: device 0 offset 0x10000000, size 0x100000
Warning: scrub option will erase all factory set bad blocks!
There is no reliable way to recover them.
Use this command only for testing purposes if you
are sure of what you are doing!

Really scrub this NAND flash? <y/N>
ynand_erase: attempt to erase a bad block at page 0x00020000

nand0: MTD Erase failure: -5
nand_erase: attempt to erase a bad block at page 0x00020040

nand0: MTD Erase failure: -5
nand_erase: attempt to erase a bad block at page 0x00020080

nand0: MTD Erase failure: -5
nand_erase: attempt to erase a bad block at page 0x000200c0

nand0: MTD Erase failure: -5
nand_erase: attempt to erase a bad block at page 0x00020100

nand0: MTD Erase failure: -5
nand_erase: attempt to erase a bad block at page 0x00020140

nand0: MTD Erase failure: -5
nand_erase: attempt to erase a bad block at page 0x00020180

nand0: MTD Erase failure: -5
nand_erase: attempt to erase a bad block at page 0x000201c0

nand0: MTD Erase failure: -5

OK
MPU-001# nand scrub 10000000 100000

NAND scrub: device 0 offset 0x10000000, size 0x100000
Warning: scrub option will erase all factory set bad blocks!
There is no reliable way to recover them.
Use this command only for testing purposes if you
are sure of what you are doing!

Really scrub this NAND flash? <y/N>
Erasing at 0x100e0000 -- 100% complete.
OK
MPU-001# nand dump 100e0000
Page 100e0000 dump:
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
OOB:
ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff
MPU-001# print updspiubootg
updspiubootg=echo Upgrading u-boot(G) on SPI FLASH ...; tftpboot ${loadaddr} ${ubootbinfile}; run sf_probe_bootdev; sf erase ${spi_uboot_golden_addr} +${filesize}; sf write ${loadaddr} ${spi_uboot_golden_addr} ${filesize};
MPU-001# run netauto
link up on port 0, speed 100, full duplex
BOOTP broadcast 1
DHCP client bound to address 192.168.6.18
MPU-001# tftpboot ${loadaddr} ${ubootbinfile}
link up on port 0, speed 100, full duplex
Using cpsw device
TFTP from server 192.168.6.168; our IP address is 192.168.6.18
Filename 'u-boot.bin'.
Load address: 0x82000000
Loading: ####################################################
done
Bytes transferred = 265032 (40b48 hex)
MPU-001# nand
nand - NAND sub-system

Usage:
nand info - show available NAND devices
nand device [dev] - show or set current device
nand read - addr off|partition size
nand write - addr off|partition size
read/write 'size' bytes starting at offset 'off'
to/from memory address 'addr', skipping bad blocks.
nand erase[.spread] [clean] off size - erase 'size' bytes from offset 'off'
With '.spread', erase enough for given file size, otherwise,
'size' includes skipped bad blocks.
nand erase.part [clean] partition - erase entire mtd partition'
nand erase.chip [clean] - erase entire chip'
nand bad - show bad blocks
nand dump[.oob] off - dump page
nand scrub off size | scrub.part partition | scrub.chip
really clean NAND erasing bad blocks (UNSAFE)
nand markbad off [...] - mark bad block(s) at offset (UNSAFE)
nand biterr off - make a bit error at offset (UNSAFE)
MPU-001# nand write 82000000 100e0000 800

NAND write: device 0 offset 0x100e0000, size 0x800
2048 bytes written: OK
MPU-001# nand dump 100e0000
Page 100e0000 dump:
14 00 00 ea 14 f0 9f e5 14 f0 9f e5 14 f0 9f e5
14 f0 9f e5 14 f0 9f e5 14 f0 9f e5 14 f0 9f e5
a0 01 10 80 00 02 10 80 60 02 10 80 c0 02 10 80
20 03 10 80 80 03 10 80 e0 03 10 80 78 56 34 12
00 00 10 80 f8 aa 03 00 f8 aa 03 00 34 18 07 00
48 0b 04 00 de c0 ad 0b c8 01 00 eb 00 00 0f e1
1f 00 c0 e3 d3 00 80 e3 00 f0 29 e1 b4 d3 9f e5
07 d0 cd e3 00 00 a0 e3 7e 04 00 eb 00 40 a0 e1
01 50 a0 e1 02 60 a0 e1 04 d0 a0 e1 94 00 4f e2
06 00 50 e1 00 90 a0 03 26 00 00 0a 06 10 a0 e1
60 30 1f e5 03 20 80 e0 00 06 b0 e8 00 06 a1 e8
02 00 50 e1 fb ff ff 3a 80 00 1f e5 00 90 46 e0
6c a0 9f e5 00 a0 8a e0 5c 20 9f e5 00 20 82 e0
58 30 9f e5 00 30 83 e0 00 00 92 e5 09 00 80 e0
04 10 92 e5 ff 70 01 e2 17 00 57 e3 07 00 00 0a
02 00 57 e3 00 00 00 0a 06 00 00 ea 21 12 a0 e1
01 10 8a e0 04 10 91 e5 09 10 81 e0 01 00 00 ea
00 10 90 e5 09 10 81 e0 00 10 80 e5 08 20 82 e2
03 00 52 e1 eb ff ff 3a 02 00 00 ea f8 aa 03 00
88 0a 04 00 88 0a 04 00 fc 00 1f e5 f8 10 1f e5
06 40 a0 e1 04 00 80 e0 04 10 81 e0 00 20 a0 e3
00 20 80 e5 04 00 80 e2 01 00 50 e1 fb ff ff 1a
15 0f 07 ee 9a 0f 07 ee 95 0f 07 ee 14 00 9f e5
5e 1f 4f e2 01 e0 80 e0 09 e0 8e e0 05 00 a0 e1
06 10 a0 e1 0e f0 a0 e1 54 11 00 00 00 00 a0 e1
00 00 a0 e1 00 00 a0 e1 00 00 a0 e1 00 00 a0 e1
54 d1 1f e5 00 e0 8d e5 00 e0 4f e1 04 e0 8d e5
13 d0 a0 e3 0d f0 69 e1 0f e0 a0 e1 0e f0 b0 e1
48 d0 4d e2 ff 1f 8d e8 7c 21 1f e5 0c 00 92 e8
48 00 8d e2 34 50 8d e2 0e 10 a0 e1 0f 00 85 e8
0d 00 a0 e1 9b 05 00 eb 00 00 a0 e1 00 00 a0 e1
00 00 a0 e1 00 00 a0 e1 00 00 a0 e1 00 00 a0 e1
04 d0 4d e2 00 00 8d e5 bc 01 1f e5 00 e0 80 e5
00 00 4f e1 04 e0 80 e5 00 00 9d e5 04 d0 8d e2
48 d0 4d e2 ff 1f 8d e8 dc 21 1f e5 0c 00 92 e8
48 00 8d e2 34 50 8d e2 0e 10 a0 e1 0f 00 85 e8
0d 00 a0 e1 8c 05 00 eb 00 00 a0 e1 00 00 a0 e1
00 00 a0 e1 00 00 a0 e1 00 00 a0 e1 00 00 a0 e1
14 d2 1f e5 00 e0 8d e5 00 e0 4f e1 04 e0 8d e5
13 d0 a0 e3 0d f0 69 e1 0f e0 a0 e1 0e f0 b0 e1
48 d0 4d e2 ff 1f 8d e8 3c 22 1f e5 0c 00 92 e8
48 00 8d e2 34 50 8d e2 0e 10 a0 e1 0f 00 85 e8
0d 00 a0 e1 7d 05 00 eb 00 00 a0 e1 00 00 a0 e1
00 00 a0 e1 00 00 a0 e1 00 00 a0 e1 00 00 a0 e1
74 d2 1f e5 00 e0 8d e5 00 e0 4f e1 04 e0 8d e5
13 d0 a0 e3 0d f0 69 e1 0f e0 a0 e1 0e f0 b0 e1
48 d0 4d e2 ff 1f 8d e8 9c 22 1f e5 0c 00 92 e8
48 00 8d e2 34 50 8d e2 0e 10 a0 e1 0f 00 85 e8
0d 00 a0 e1 6e 05 00 eb 00 00 a0 e1 00 00 a0 e1
00 00 a0 e1 00 00 a0 e1 00 00 a0 e1 00 00 a0 e1
d4 d2 1f e5 00 e0 8d e5 00 e0 4f e1 04 e0 8d e5
13 d0 a0 e3 0d f0 69 e1 0f e0 a0 e1 0e f0 b0 e1
48 d0 4d e2 ff 1f 8d e8 fc 22 1f e5 0c 00 92 e8
48 00 8d e2 34 50 8d e2 0e 10 a0 e1 0f 00 85 e8
0d 00 a0 e1 5f 05 00 eb 00 00 a0 e1 00 00 a0 e1
00 00 a0 e1 00 00 a0 e1 00 00 a0 e1 00 00 a0 e1
34 d3 1f e5 00 e0 8d e5 00 e0 4f e1 04 e0 8d e5
13 d0 a0 e3 0d f0 69 e1 0f e0 a0 e1 0e f0 b0 e1
48 d0 4d e2 ff 1f 8d e8 5c 23 1f e5 0c 00 92 e8
48 00 8d e2 34 50 8d e2 0e 10 a0 e1 0f 00 85 e8
0d 00 a0 e1 59 05 00 eb 00 00 a0 e1 00 00 a0 e1
00 00 a0 e1 00 00 a0 e1 00 00 a0 e1 00 00 a0 e1
94 d3 1f e5 00 e0 8d e5 00 e0 4f e1 04 e0 8d e5
13 d0 a0 e3 0d f0 69 e1 0f e0 a0 e1 0e f0 b0 e1
48 d0 4d e2 ff 1f 8d e8 bc 23 1f e5 0c 00 92 e8
48 00 8d e2 34 50 8d e2 0e 10 a0 e1 0f 00 85 e8
0d 00 a0 e1 38 05 00 eb 80 b7 30 40 00 00 a0 e1
00 00 a0 e1 00 00 a0 e1 00 00 a0 e1 00 00 a0 e1
f3 4e 2d e9 30 1f 30 ee 00 30 a0 e3 04 10 8d e5
03 c0 a0 e1 03 50 a0 e1 04 10 9d e5 31 23 a0 e1
07 20 02 e2 02 20 42 e2 02 00 52 e3 2d 00 00 8a
8c 40 a0 e1 10 4f 40 ee 10 1f 30 ee b8 20 9f e5
b8 70 9f e5 02 20 01 e0 a2 21 a0 e1 07 60 01 e2
07 70 01 e0 01 90 82 e2 04 60 86 e2 a7 76 a0 e1
09 10 a0 e1 00 a0 e0 e3 a1 10 b0 e1 01 a0 8a e2
fc ff ff 1a 02 00 19 e1 01 a0 8a 12 01 00 50 e3
20 a0 6a e2 0a 00 00 1a 12 ba 84 e1 07 10 a0 e1
04 90 a0 e1 11 46 8b e1 56 4f 07 ee 01 10 51 e2
fb ff ff 2a 01 20 52 e2 09 40 a0 e1 f5 ff ff 2a
0b 00 00 ea 02 00 50 e3 0a 00 00 1a 12 ba 84 e1
07 10 a0 e1 04 90 a0 e1 11 46 8b e1 5e 4f 07 ee
01 10 51 e2 fb ff ff 2a 01 20 52 e2 09 40 a0 e1
f5 ff ff 2a 9a 5f 07 ee 12 00 53 e3 01 c0 8c e2
03 30 83 12 c7 ff ff 1a fc 8e bd e8 f8 1f 00 00
00 e0 ff 0f f8 40 2d e9 00 40 a0 e1 01 60 a0 e1
10 5f 30 ee 07 50 05 e2 04 50 85 e2 01 30 a0 e3
03 00 52 e3 13 55 a0 e1 09 00 00 0a 04 00 52 e3
00 30 65 02 00 40 03 00 1d 00 00 1a 01 00 00 ea
3e 4f 07 ee 05 40 84 e0 06 00 54 e1 fb ff ff 3a
17 00 00 ea 01 70 45 e2 00 00 17 e1 07 00 00 0a
04 20 a0 e1 54 00 9f e5 54 10 9f e5 01 40 44 e2
84 23 00 eb 05 40 84 e0 00 30 65 e2 04 40 03 e0
06 00 17 e1 08 00 00 0a 06 20 a0 e1 34 00 9f e5
2c 10 9f e5 7b 23 00 eb 00 30 65 e2 03 60 06 e0
01 00 00 ea 36 4f 07 ee 05 40 84 e0 06 00 54 e1
fb ff ff 3a 00 30 a0 e3 9a 3f 07 ee f8 80 bd e8
d6 f3 12 80 8f f3 12 80 09 f4 12 80 10 40 2d e9
01 00 a0 e3 89 ff ff eb 10 40 bd e8 2b 00 00 ea
10 40 2d e9 02 00 a0 e3 84 ff ff eb 10 40 bd e8
25 00 00 ea 70 40 2d e9 03 20 a0 e3 00 50 a0 e1
01 40 a0 e1 be ff ff eb 05 00 a0 e1 04 10 a0 e1
70 40 bd e8 1f 00 00 ea 70 40 2d e9 04 20 a0 e3
00 50 a0 e1 01 40 a0 e1 b5 ff ff eb 05 00 a0 e1
04 10 a0 e1 70 40 bd e8 15 00 00 ea 08 40 2d e9
0f 00 00 eb e0 ff ff eb 00 30 a0 e3 17 3f 08 ee
16 3f 08 ee 15 3f 08 ee 9a 3f 07 ee 95 3f 07 ee
08 80 bd e8 00 10 81 e0 ea ff ff ea 00 30 a0 e3
15 3f 07 ee d5 3f 07 ee 9a 3f 07 ee 95 3f 07 ee
1e ff 2f e1 1e ff 2f e1 1e ff 2f e1 1e ff 2f e1
1e ff 2f e1 1e ff 2f e1 1e ff 2f e1 1e ff 2f e1
08 40 2d e9 05 04 00 eb ec 03 00 eb ee ff ff eb
f3 03 00 eb c4 ff ff eb 00 00 a0 e3 08 80 bd e8
01 00 50 e2 fd ff ff 1a 1e ff 2f e1 01 c0 a0 e3
10 40 2d e9 1c c2 a0 e1 00 40 90 e5 01 c0 4c e2
1c c1 c4 e1 13 11 8c e1 00 10 80 e5 10 80 bd e8
10 40 2d e9 00 c0 a0 e3 00 40 92 e5 00 40 04 e0
01 00 54 e1 04 00 00 0a 01 c0 8c e2 03 00 5c e1
f8 ff ff 1a 00 00 a0 e3 10 80 bd e8 01 00 a0 e3
10 80 bd e8 0c 10 9f e5 0c 30 9f e5 00 30 81 e5
00 00 a0 e1 fe ff ff ea 00 0f e0 44 01 00 00 00
30 20 9f e5 00 00 52 e1 09 00 00 ca 28 20 9f e5
00 00 52 e1 06 00 00 ba 00 00 50 e3 04 00 00 0a
18 10 9f e5 00 00 81 e5 0a 20 d0 e5 0c 30 9f e5
0a 20 c3 e5 1e ff 2f e1 00 40 30 40 00 e0 30 40
ac 7d 13 80 38 40 2d e9 2c 30 9f e5 00 40 a0 e3
00 40 83 e5 2b 20 a0 e3 08 20 03 e5 04 00 13 e5
08 50 a0 e1 14 10 9f e5 2f a5 00 eb 30 00 85 e5
20 40 88 e5 04 00 a0 e1 38 80 bd e8 40 00 04 48
OOB:
ff ff bd 95 da b7 04 de
70 e1 6c ef 5e 20 17 00
4d 6c 7f 71 24 87 6b e9
4c 18 20 df 51 00 ab f4
02 b9 d4 ed 0d d8 7d 17
5a b5 10 00 4f 6a 28 42
8d e0 9d 40 0d c8 36 4a
a7 00 ff ff ff ff ff ff
MPU-001# nand bad

Device 0 bad blocks:
MPU-001# md 82000000
82000000: ea000014 e59ff014 e59ff014 e59ff014 ................
82000010: e59ff014 e59ff014 e59ff014 e59ff014 ................
82000020: 801001a0 80100200 80100260 801002c0 ........`.......
82000030: 80100320 80100380 801003e0 12345678 ...........xV4.
82000040: 80100000 0003aaf8 0003aaf8 00071834 ............4...
82000050: 00040b48 0badc0de eb0001c8 e10f0000 H...............
82000060: e3c0001f e38000d3 e129f000 e59fd3b4 ..........).....
82000070: e3cdd007 e3a00000 eb00047e e1a04000 ........~....@..
82000080: e1a05001 e1a06002 e1a0d004 e24f0094 .P...`........O.
82000090: e1500006 03a09000 0a000026 e1a01006 ..P.....&.......
820000a0: e51f3060 e0802003 e8b00600 e8a10600 `0... ..........
820000b0: e1500002 3afffffb e51f0080 e0469000 ..P....:......F.
820000c0: e59fa06c e08aa000 e59f205c e0822000 l.......\ ... ..
820000d0: e59f3058 e0833000 e5920000 e0800009 X0...0..........
820000e0: e5921004 e20170ff e3570017 0a000007 .....p....W.....
820000f0: e3570002 0a000000 ea000006 e1a01221 ..W.........!...
MPU-001#

Hi Renjith,

This is the test log (written in linux and dump it in u-boot). It seems that the u-boot has issue when it detects whether the block is bad?

===============================================

root@MPU-001:~# flash_erase /dev/mtd12 0 0
Erasing 128 Kibyte @ ffe0000 -- 100 % complete
root@MPU-001:~# cat /etc/passwd
root:x:0:0:root:/root:/bin/sh
daemon:x:1:1:daemon:/usr/sbin:/bin/sh
bin:x:2:2:bin:/bin:/bin/sh
sys:x:3:3:sys:/dev:/bin/sh
sync:x:4:65534:sync:/bin:/bin/sync
games:x:5:60:games:/usr/games:/bin/sh
man:x:6:12:man:/var/cache/man:/bin/sh
lp:x:7:7:lp:/var/spool/lpd:/bin/sh
mail:x:8:8:mail:/var/mail:/bin/sh
news:x:9:9:news:/var/spool/news:/bin/sh
uucp:x:10:10:uucp:/var/spool/uucp:/bin/sh
proxy:x:13:13:proxy:/bin:/bin/sh
www-data:x:33:33:www-data:/var/www:/bin/sh
backup:x:34:34:backup:/var/backups:/bin/sh
list:x:38:38:Mailing List Manager:/var/list:/bin/sh
irc:x:39:39:ircd:/var/run/ircd:/bin/sh
gnats:x:41:41:Gnats Bug-Reporting System (admin):/var/lib/gnats:/bin/sh
nobody:x:65534:65534:nobody:/nonexistent:/bin/sh
messagebus:x:999:997::/var/lib/dbus:/bin/false
avahi:x:998:996::/var/run/avahi-daemon:/bin/false
xuser:x:997:995::/home/xuser:/bin/false

root@MPU-001:~# nandwrite -s 0x000e0000 /dev/mtd12 /etc/passwd -p
Writing data to block 7 at offset 0xe0000

.........................

MPU-001# nand dump 100e0000
Page 100e0000 dump:
72 6f 6f 74 3a 78 3a 30 3a 30 3a 72 6f 6f 74 3a
2f 72 6f 6f 74 3a 2f 62 69 6e 2f 73 68 0a 64 61
65 6d 6f 6e 3a 78 3a 31 3a 31 3a 64 61 65 6d 6f
6e 3a 2f 75 73 72 2f 73 62 69 6e 3a 2f 62 69 6e
2f 73 68 0a 62 69 6e 3a 78 3a 32 3a 32 3a 62 69
6e 3a 2f 62 69 6e 3a 2f 62 69 6e 2f 73 68 0a 73
79 73 3a 78 3a 33 3a 33 3a 73 79 73 3a 2f 64 65
76 3a 2f 62 69 6e 2f 73 68 0a 73 79 6e 63 3a 78
3a 34 3a 36 35 35 33 34 3a 73 79 6e 63 3a 2f 62
69 6e 3a 2f 62 69 6e 2f 73 79 6e 63 0a 67 61 6d
65 73 3a 78 3a 35 3a 36 30 3a 67 61 6d 65 73 3a
2f 75 73 72 2f 67 61 6d 65 73 3a 2f 62 69 6e 2f
73 68 0a 6d 61 6e 3a 78 3a 36 3a 31 32 3a 6d 61
6e 3a 2f 76 61 72 2f 63 61 63 68 65 2f 6d 61 6e
3a 2f 62 69 6e 2f 73 68 0a 6c 70 3a 78 3a 37 3a
37 3a 6c 70 3a 2f 76 61 72 2f 73 70 6f 6f 6c 2f
6c 70 64 3a 2f 62 69 6e 2f 73 68 0a 6d 61 69 6c
3a 78 3a 38 3a 38 3a 6d 61 69 6c 3a 2f 76 61 72
2f 6d 61 69 6c 3a 2f 62 69 6e 2f 73 68 0a 6e 65
77 73 3a 78 3a 39 3a 39 3a 6e 65 77 73 3a 2f 76
61 72 2f 73 70 6f 6f 6c 2f 6e 65 77 73 3a 2f 62
69 6e 2f 73 68 0a 75 75 63 70 3a 78 3a 31 30 3a
31 30 3a 75 75 63 70 3a 2f 76 61 72 2f 73 70 6f
6f 6c 2f 75 75 63 70 3a 2f 62 69 6e 2f 73 68 0a
70 72 6f 78 79 3a 78 3a 31 33 3a 31 33 3a 70 72
6f 78 79 3a 2f 62 69 6e 3a 2f 62 69 6e 2f 73 68
0a 77 77 77 2d 64 61 74 61 3a 78 3a 33 33 3a 33
33 3a 77 77 77 2d 64 61 74 61 3a 2f 76 61 72 2f
77 77 77 3a 2f 62 69 6e 2f 73 68 0a 62 61 63 6b
75 70 3a 78 3a 33 34 3a 33 34 3a 62 61 63 6b 75
70 3a 2f 76 61 72 2f 62 61 63 6b 75 70 73 3a 2f
62 69 6e 2f 73 68 0a 6c 69 73 74 3a 78 3a 33 38
3a 33 38 3a 4d 61 69 6c 69 6e 67 20 4c 69 73 74
20 4d 61 6e 61 67 65 72 3a 2f 76 61 72 2f 6c 69
73 74 3a 2f 62 69 6e 2f 73 68 0a 69 72 63 3a 78
3a 33 39 3a 33 39 3a 69 72 63 64 3a 2f 76 61 72
2f 72 75 6e 2f 69 72 63 64 3a 2f 62 69 6e 2f 73
68 0a 67 6e 61 74 73 3a 78 3a 34 31 3a 34 31 3a
47 6e 61 74 73 20 42 75 67 2d 52 65 70 6f 72 74
69 6e 67 20 53 79 73 74 65 6d 20 28 61 64 6d 69
6e 29 3a 2f 76 61 72 2f 6c 69 62 2f 67 6e 61 74
73 3a 2f 62 69 6e 2f 73 68 0a 6e 6f 62 6f 64 79
3a 78 3a 36 35 35 33 34 3a 36 35 35 33 34 3a 6e
6f 62 6f 64 79 3a 2f 6e 6f 6e 65 78 69 73 74 65
6e 74 3a 2f 62 69 6e 2f 73 68 0a 6d 65 73 73 61
67 65 62 75 73 3a 78 3a 39 39 39 3a 39 39 37 3a
3a 2f 76 61 72 2f 6c 69 62 2f 64 62 75 73 3a 2f
62 69 6e 2f 66 61 6c 73 65 0a 61 76 61 68 69 3a
78 3a 39 39 38 3a 39 39 36 3a 3a 2f 76 61 72 2f
72 75 6e 2f 61 76 61 68 69 2d 64 61 65 6d 6f 6e
3a 2f 62 69 6e 2f 66 61 6c 73 65 0a 78 75 73 65
72 3a 78 3a 39 39 37 3a 39 39 35 3a 3a 2f 68 6f
6d 65 2f 78 75 73 65 72 3a 2f 62 69 6e 2f 66 61
6c 73 65 0a ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
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ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
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ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
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ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
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ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
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ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
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ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
OOB:
ff ff 11 65 13 06 b9 b5
31 b5 1f e2 c2 32 d7 00
7d c4 0a 59 96 3d 06 65
65 85 31 96 02 00 10 ae
d1 f6 12 6c 65 3d 68 86
1a db 4a 00 10 ae d1 f6
12 6c 65 3d 68 86 1a db
4a 00 ff ff ff ff ff ff
MPU-001#
Page 100e0800 dump:
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
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ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
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ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
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ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
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ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
OOB:
ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff
MPU-001# nand bad

Device 0 bad blocks:
100e0000
MPU-001#

Renjith,

After written in Linux, u-boot will show the block is bad!!!

Frisky,

1. Can you erase the page, and mark it as bad using "nand markbad offset" command and do a nand dump?

2. Can you write the same file from u-boot and kernel and do a nand dump from both send the logs?

A quick try for the first test, it seems that the bad flag pos is wrong

MPU-001# nand markbad 20000
block 0x00020000 successfully marked as bad

MPU-001# nand dump 20000

Page 00020000 dump:
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
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ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
OOB:
ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff
00 00 ff ff ff ff ff ff
MPU-001#

I've written 4096 bytes into /dev/mtd11 (partition 0,  first 2 pages of block0) in linux, and dump it in u-boot, and found that u-boot says that block 0 is bad. It seems that u-boot considers offset 56 in OOB is the bad block flag, but Linux considers the flag offset is 0? we can conclude this when i run 'nand markbad 0' and see the OOB:(

MPU-001# nand dump 0
Page 00000000 dump:
30 31 32 33 34 35 36 37 38 39 30 31 32 33 34 35
36 37 38 39 30 31 32 33 34 35 36 37 38 39 30 31
32 33 34 35 36 37 38 39 30 31 32 33 34 35 36 37
38 39 30 31 32 33 34 35 36 37 38 39 30 31 32 33
34 35 36 37 38 39 30 31 32 33 34 35 36 37 38 39
30 31 32 33 34 35 36 37 38 39 30 31 32 33 34 35
36 37 38 39 30 31 32 33 34 35 36 37 38 39 30 31
32 33 34 35 36 37 38 39 30 31 32 33 34 35 36 37
38 39 30 31 32 33 34 35 36 37 38 39 30 31 32 33
34 35 36 37 38 39 30 31 32 33 34 35 36 37 38 39
30 31 32 33 34 35 36 37 38 39 30 31 32 33 34 35
36 37 38 39 30 31 32 33 34 35 36 37 38 39 30 31
32 33 34 35 36 37 38 39 30 31 32 33 34 35 36 37
38 39 30 31 32 33 34 35 36 37 38 39 30 31 32 33
34 35 36 37 38 39 30 31 32 33 34 35 36 37 38 39
30 31 32 33 34 35 36 37 38 39 30 31 32 33 34 35
36 37 38 39 30 31 32 33 34 35 36 37 38 39 30 31
32 33 34 35 36 37 38 39 30 31 32 33 34 35 36 37
38 39 30 31 32 33 34 35 36 37 38 39 30 31 32 33
34 35 36 37 38 39 30 31 32 33 34 35 36 37 38 39
30 31 32 33 34 35 36 37 38 39 30 31 32 33 34 35
36 37 38 39 30 31 32 33 34 35 36 37 38 39 30 31
32 33 34 35 36 37 38 39 30 31 32 33 34 35 36 37
38 39 30 31 32 33 34 35 36 37 38 39 30 31 32 33
34 35 36 37 38 39 30 31 32 33 34 35 36 37 38 39
30 31 32 33 34 35 36 37 38 39 30 31 32 33 34 35
36 37 38 39 30 31 32 33 34 35 36 37 38 39 30 31
32 33 34 35 36 37 38 39 30 31 32 33 34 35 36 37
38 39 30 31 32 33 34 35 36 37 38 39 30 31 32 33
34 35 36 37 38 39 30 31 32 33 34 35 36 37 38 39
30 31 32 33 34 35 36 37 38 39 30 31 32 33 34 35
36 37 38 39 30 31 32 33 34 35 36 37 38 39 30 31
32 33 34 35 36 37 38 39 30 31 32 33 34 35 36 37
38 39 30 31 32 33 34 35 36 37 38 39 30 31 32 33
34 35 36 37 38 39 30 31 32 33 34 35 36 37 38 39
30 31 32 33 34 35 36 37 38 39 30 31 32 33 34 35
36 37 38 39 30 31 32 33 34 35 36 37 38 39 30 31
32 33 34 35 36 37 38 39 30 31 32 33 34 35 36 37
38 39 30 31 32 33 34 35 36 37 38 39 30 31 32 33
34 35 36 37 38 39 30 31 32 33 34 35 36 37 38 39
30 31 32 33 34 35 36 37 38 39 30 31 32 33 34 35
36 37 38 39 30 31 32 33 34 35 36 37 38 39 30 31
32 33 34 35 36 37 38 39 30 31 32 33 34 35 36 37
38 39 30 31 32 33 34 35 36 37 38 39 30 31 32 33
34 35 36 37 38 39 30 31 32 33 34 35 36 37 38 39
30 31 32 33 34 35 36 37 38 39 30 31 32 33 34 35
36 37 38 39 30 31 32 33 34 35 36 37 38 39 30 31
32 33 34 35 36 37 38 39 30 31 32 33 34 35 36 37
38 39 30 31 32 33 34 35 36 37 38 39 30 31 32 33
34 35 36 37 38 39 30 31 32 33 34 35 36 37 38 39
30 31 32 33 34 35 36 37 38 39 30 31 32 33 34 35
36 37 38 39 30 31 32 33 34 35 36 37 38 39 30 31
32 33 34 35 36 37 38 39 30 31 32 33 34 35 36 37
38 39 30 31 32 33 34 35 36 37 38 39 30 31 32 33
34 35 36 37 38 39 30 31 32 33 34 35 36 37 38 39
30 31 32 33 34 35 36 37 38 39 30 31 32 33 34 35
36 37 38 39 30 31 32 33 34 35 36 37 38 39 30 31
32 33 34 35 36 37 38 39 30 31 32 33 34 35 36 37
38 39 30 31 32 33 34 35 36 37 38 39 30 31 32 33
34 35 36 37 38 39 30 31 32 33 34 35 36 37 38 39
30 31 32 33 34 35 36 37 38 39 30 31 32 33 34 35
36 37 38 39 30 31 32 33 34 35 36 37 38 39 30 31
32 33 34 35 36 37 38 39 30 31 32 33 34 35 36 37
38 39 30 31 32 33 34 35 36 37 38 39 30 31 32 33
34 35 36 37 38 39 30 31 32 33 34 35 36 37 38 39
30 31 32 33 34 35 36 37 38 39 30 31 32 33 34 35
36 37 38 39 30 31 32 33 34 35 36 37 38 39 30 31
32 33 34 35 36 37 38 39 30 31 32 33 34 35 36 37
38 39 30 31 32 33 34 35 36 37 38 39 30 31 32 33
34 35 36 37 38 39 30 31 32 33 34 35 36 37 38 39
30 31 32 33 34 35 36 37 38 39 30 31 32 33 34 35
36 37 38 39 30 31 32 33 34 35 36 37 38 39 30 31
32 33 34 35 36 37 38 39 30 31 32 33 34 35 36 37
38 39 30 31 32 33 34 35 36 37 38 39 30 31 32 33
34 35 36 37 38 39 30 31 32 33 34 35 36 37 38 39
30 31 32 33 34 35 36 37 38 39 30 31 32 33 34 35
36 37 38 39 30 31 32 33 34 35 36 37 38 39 30 31
32 33 34 35 36 37 38 39 30 31 32 33 34 35 36 37
38 39 30 31 32 33 34 35 36 37 38 39 30 31 32 33
34 35 36 37 38 39 30 31 32 33 34 35 36 37 38 39
30 31 32 33 34 35 36 37 38 39 30 31 32 33 34 35
36 37 38 39 30 31 32 33 34 35 36 37 38 39 30 31
32 33 34 35 36 37 38 39 30 31 32 33 34 35 36 37
38 39 30 31 32 33 34 35 36 37 38 39 30 31 32 33
34 35 36 37 38 39 30 31 32 33 34 35 36 37 38 39
30 31 32 33 34 35 36 37 38 39 30 31 32 33 34 35
36 37 38 39 30 31 32 33 34 35 36 37 38 39 30 31
32 33 34 35 36 37 38 39 30 31 32 33 34 35 36 37
38 39 30 31 32 33 34 35 36 37 38 39 30 31 32 33
34 35 36 37 38 39 30 31 32 33 34 35 36 37 38 39
30 31 32 33 34 35 36 37 38 39 30 31 32 33 34 35
36 37 38 39 30 31 32 33 34 35 36 37 38 39 30 31
32 33 34 35 36 37 38 39 30 31 32 33 34 35 36 37
38 39 30 31 32 33 34 35 36 37 38 39 30 31 32 33
34 35 36 37 38 39 30 31 32 33 34 35 36 37 38 39
30 31 32 33 34 35 36 37 38 39 30 31 32 33 34 35
36 37 38 39 30 31 32 33 34 35 36 37 38 39 30 31
32 33 34 35 36 37 38 39 30 31 32 33 34 35 36 37
38 39 30 31 32 33 34 35 36 37 38 39 30 31 32 33
34 35 36 37 38 39 30 31 32 33 34 35 36 37 38 39
30 31 32 33 34 35 36 37 38 39 30 31 32 33 34 35
36 37 38 39 30 31 32 33 34 35 36 37 38 39 30 31
32 33 34 35 36 37 38 39 30 31 32 33 34 35 36 37
38 39 30 31 32 33 34 35 36 37 38 39 30 31 32 33
34 35 36 37 38 39 30 31 32 33 34 35 36 37 38 39
30 31 32 33 34 35 36 37 38 39 30 31 32 33 34 35
36 37 38 39 30 31 32 33 34 35 36 37 38 39 30 31
32 33 34 35 36 37 38 39 30 31 32 33 34 35 36 37
38 39 30 31 32 33 34 35 36 37 38 39 30 31 32 33
34 35 36 37 38 39 30 31 32 33 34 35 36 37 38 39
30 31 32 33 34 35 36 37 38 39 30 31 32 33 34 35
36 37 38 39 30 31 32 33 34 35 36 37 38 39 30 31
32 33 34 35 36 37 38 39 30 31 32 33 34 35 36 37
38 39 30 31 32 33 34 35 36 37 38 39 30 31 32 33
34 35 36 37 38 39 30 31 32 33 34 35 36 37 38 39
30 31 32 33 34 35 36 37 38 39 30 31 32 33 34 35
36 37 38 39 30 31 32 33 34 35 36 37 38 39 30 31
32 33 34 35 36 37 38 39 30 31 32 33 34 35 36 37
38 39 30 31 32 33 34 35 36 37 38 39 30 31 32 33
34 35 36 37 38 39 30 31 32 33 34 35 36 37 38 39
30 31 32 33 34 35 36 37 38 39 30 31 32 33 34 35
36 37 38 39 30 31 32 33 34 35 36 37 38 39 30 31
32 33 34 35 36 37 38 39 30 31 32 33 34 35 36 37
38 39 30 31 32 33 34 35 36 37 38 39 30 31 32 33
34 35 36 37 38 39 30 31 32 33 34 35 36 37 38 39
30 31 32 33 34 35 36 37 38 39 30 31 32 33 34 35
36 37 38 39 30 31 32 33 34 35 36 37 38 39 30 31
32 33 34 35 36 37 38 39 30 31 32 33 34 35 36 37
OOB:
ff ff 5a 1f 29 21 57 71
9a a3 d2 3a 06 bc 9a 00
42 be 3a 12 ae 71 fc 06
60 a7 dc 3a 40 00 25 25
b5 62 b5 45 c5 71 ab ca
98 32 2a 00 a7 10 e5 a0
46 02 b7 84 04 27 08 54
a1 00 ff ff ff ff ff ff
MPU-001# nand dump 800
Page 00000800 dump:
38 39 30 31 32 33 34 35 36 37 38 39 30 31 32 33
34 35 36 37 38 39 30 31 32 33 34 35 36 37 38 39
30 31 32 33 34 35 36 37 38 39 30 31 32 33 34 35
36 37 38 39 30 31 32 33 34 35 36 37 38 39 30 31
32 33 34 35 36 37 38 39 30 31 32 33 34 35 36 37
38 39 30 31 32 33 34 35 36 37 38 39 30 31 32 33
34 35 36 37 38 39 30 31 32 33 34 35 36 37 38 39
30 31 32 33 34 35 36 37 38 39 30 31 32 33 34 35
36 37 38 39 30 31 32 33 34 35 36 37 38 39 30 31
32 33 34 35 36 37 38 39 30 31 32 33 34 35 36 37
38 39 30 31 32 33 34 35 36 37 38 39 30 31 32 33
34 35 36 37 38 39 30 31 32 33 34 35 36 37 38 39
30 31 32 33 34 35 36 37 38 39 30 31 32 33 34 35
36 37 38 39 30 31 32 33 34 35 36 37 38 39 30 31
32 33 34 35 36 37 38 39 30 31 32 33 34 35 36 37
38 39 30 31 32 33 34 35 36 37 38 39 30 31 32 33
34 35 36 37 38 39 30 31 32 33 34 35 36 37 38 39
30 31 32 33 34 35 36 37 38 39 30 31 32 33 34 35
36 37 38 39 30 31 32 33 34 35 36 37 38 39 30 31
32 33 34 35 36 37 38 39 30 31 32 33 34 35 36 37
38 39 30 31 32 33 34 35 36 37 38 39 30 31 32 33
34 35 36 37 38 39 30 31 32 33 34 35 36 37 38 39
30 31 32 33 34 35 36 37 38 39 30 31 32 33 34 35
36 37 38 39 30 31 32 33 34 35 36 37 38 39 30 31
32 33 34 35 36 37 38 39 30 31 32 33 34 35 36 37
38 39 30 31 32 33 34 35 36 37 38 39 30 31 32 33
34 35 36 37 38 39 30 31 32 33 34 35 36 37 38 39
30 31 32 33 34 35 36 37 38 39 30 31 32 33 34 35
36 37 38 39 30 31 32 33 34 35 36 37 38 39 30 31
32 33 34 35 36 37 38 39 30 31 32 33 34 35 36 37
38 39 30 31 32 33 34 35 36 37 38 39 30 31 32 33
34 35 36 37 38 39 30 31 32 33 34 35 36 37 38 39
30 31 32 33 34 35 36 37 38 39 30 31 32 33 34 35
36 37 38 39 30 31 32 33 34 35 36 37 38 39 30 31
32 33 34 35 36 37 38 39 30 31 32 33 34 35 36 37
38 39 30 31 32 33 34 35 36 37 38 39 30 31 32 33
34 35 36 37 38 39 30 31 32 33 34 35 36 37 38 39
30 31 32 33 34 35 36 37 38 39 30 31 32 33 34 35
36 37 38 39 30 31 32 33 34 35 36 37 38 39 30 31
32 33 34 35 36 37 38 39 30 31 32 33 34 35 36 37
38 39 30 31 32 33 34 35 36 37 38 39 30 31 32 33
34 35 36 37 38 39 30 31 32 33 34 35 36 37 38 39
30 31 32 33 34 35 36 37 38 39 30 31 32 33 34 35
36 37 38 39 30 31 32 33 34 35 36 37 38 39 30 31
32 33 34 35 36 37 38 39 30 31 32 33 34 35 36 37
38 39 30 31 32 33 34 35 36 37 38 39 30 31 32 33
34 35 36 37 38 39 30 31 32 33 34 35 36 37 38 39
30 31 32 33 34 35 36 37 38 39 30 31 32 33 34 35
36 37 38 39 30 31 32 33 34 35 36 37 38 39 30 31
32 33 34 35 36 37 38 39 30 31 32 33 34 35 36 37
38 39 30 31 32 33 34 35 36 37 38 39 30 31 32 33
34 35 36 37 38 39 30 31 32 33 34 35 36 37 38 39
30 31 32 33 34 35 36 37 38 39 30 31 32 33 34 35
36 37 38 39 30 31 32 33 34 35 36 37 38 39 30 31
32 33 34 35 36 37 38 39 30 31 32 33 34 35 36 37
38 39 30 31 32 33 34 35 36 37 38 39 30 31 32 33
34 35 36 37 38 39 30 31 32 33 34 35 36 37 38 39
30 31 32 33 34 35 36 37 38 39 30 31 32 33 34 35
36 37 38 39 30 31 32 33 34 35 36 37 38 39 30 31
32 33 34 35 36 37 38 39 30 31 32 33 34 35 36 37
38 39 30 31 32 33 34 35 36 37 38 39 30 31 32 33
34 35 36 37 38 39 30 31 32 33 34 35 36 37 38 39
30 31 32 33 34 35 36 37 38 39 30 31 32 33 34 35
36 37 38 39 30 31 32 33 34 35 36 37 38 39 30 31
32 33 34 35 36 37 38 39 30 31 32 33 34 35 36 37
38 39 30 31 32 33 34 35 36 37 38 39 30 31 32 33
34 35 36 37 38 39 30 31 32 33 34 35 36 37 38 39
30 31 32 33 34 35 36 37 38 39 30 31 32 33 34 35
36 37 38 39 30 31 32 33 34 35 36 37 38 39 30 31
32 33 34 35 36 37 38 39 30 31 32 33 34 35 36 37
38 39 30 31 32 33 34 35 36 37 38 39 30 31 32 33
34 35 36 37 38 39 30 31 32 33 34 35 36 37 38 39
30 31 32 33 34 35 36 37 38 39 30 31 32 33 34 35
36 37 38 39 30 31 32 33 34 35 36 37 38 39 30 31
32 33 34 35 36 37 38 39 30 31 32 33 34 35 36 37
38 39 30 31 32 33 34 35 36 37 38 39 30 31 32 33
34 35 36 37 38 39 30 31 32 33 34 35 36 37 38 39
30 31 32 33 34 35 36 37 38 39 30 31 32 33 34 35
36 37 38 39 30 31 32 33 34 35 36 37 38 39 30 31
32 33 34 35 36 37 38 39 30 31 32 33 34 35 36 37
38 39 30 31 32 33 34 35 36 37 38 39 30 31 32 33
34 35 36 37 38 39 30 31 32 33 34 35 36 37 38 39
30 31 32 33 34 35 36 37 38 39 30 31 32 33 34 35
36 37 38 39 30 31 32 33 34 35 36 37 38 39 30 31
32 33 34 35 36 37 38 39 30 31 32 33 34 35 36 37
38 39 30 31 32 33 34 35 36 37 38 39 30 31 32 33
34 35 36 37 38 39 30 31 32 33 34 35 36 37 38 39
30 31 32 33 34 35 36 37 38 39 30 31 32 33 34 35
36 37 38 39 30 31 32 33 34 35 36 37 38 39 30 31
32 33 34 35 36 37 38 39 30 31 32 33 34 35 36 37
38 39 30 31 32 33 34 35 36 37 38 39 30 31 32 33
34 35 36 37 38 39 30 31 32 33 34 35 36 37 38 39
30 31 32 33 34 35 36 37 38 39 30 31 32 33 34 35
36 37 38 39 30 31 32 33 34 35 36 37 38 39 30 31
32 33 34 35 36 37 38 39 30 31 32 33 34 35 36 37
38 39 30 31 32 33 34 35 36 37 38 39 30 31 32 33
34 35 36 37 38 39 30 31 32 33 34 35 36 37 38 39
30 31 32 33 34 35 36 37 38 39 30 31 32 33 34 35
36 37 38 39 30 31 32 33 34 35 36 37 38 39 30 31
32 33 34 35 36 37 38 39 30 31 32 33 34 35 36 37
38 39 30 31 32 33 34 35 36 37 38 39 30 31 32 33
34 35 36 37 38 39 30 31 32 33 34 35 36 37 38 39
30 31 32 33 34 35 36 37 38 39 30 31 32 33 34 35
36 37 38 39 30 31 32 33 34 35 36 37 38 39 30 31
32 33 34 35 36 37 38 39 30 31 32 33 34 35 36 37
38 39 30 31 32 33 34 35 36 37 38 39 30 31 32 33
34 35 36 37 38 39 30 31 32 33 34 35 36 37 38 39
30 31 32 33 34 35 36 37 38 39 30 31 32 33 34 35
36 37 38 39 30 31 32 33 34 35 36 37 38 39 30 31
32 33 34 35 36 37 38 39 30 31 32 33 34 35 36 37
38 39 30 31 32 33 34 35 36 37 38 39 30 31 32 33
34 35 36 37 38 39 30 31 32 33 34 35 36 37 38 39
30 31 32 33 34 35 36 37 38 39 30 31 32 33 34 35
36 37 38 39 30 31 32 33 34 35 36 37 38 39 30 31
32 33 34 35 36 37 38 39 30 31 32 33 34 35 36 37
38 39 30 31 32 33 34 35 36 37 38 39 30 31 32 33
34 35 36 37 38 39 30 31 32 33 34 35 36 37 38 39
30 31 32 33 34 35 36 37 38 39 30 31 32 33 34 35
36 37 38 39 30 31 32 33 34 35 36 37 38 39 30 31
32 33 34 35 36 37 38 39 30 31 32 33 34 35 36 37
38 39 30 31 32 33 34 35 36 37 38 39 30 31 32 33
34 35 36 37 38 39 30 31 32 33 34 35 36 37 38 39
30 31 32 33 34 35 36 37 38 39 30 31 32 33 34 35
36 37 38 39 30 31 32 33 34 35 36 37 38 39 30 31
32 33 34 35 36 37 38 39 30 31 32 33 34 35 36 37
38 39 30 31 32 33 34 35 36 37 38 39 30 31 32 33
34 35 36 37 38 39 30 31 32 33 34 35 36 37 38 39
30 31 32 33 34 35 36 37 38 39 30 31 32 33 34 35
OOB:
ff ff 93 5a 00 9d d2 5f
df 3c f9 ee 18 7e ba 00
5a 1f 29 21 57 71 9a a3
d2 3a 06 bc 9a 00 42 be
3a 12 ae 71 fc 06 60 a7
dc 3a 40 00 25 25 b5 62
b5 45 c5 71 ab ca 98 32
2a 00 ff ff ff ff ff ff
MPU-001# nand bad

Device 0 bad blocks:
00000000

Hi Frisky,

Can you see any error is reporting on reading nand page in Linux.

You can continue with the above experiment & dump it from Linux using

nanddump -l 0x1000 /dev/mtd11 -p

If no errors reported, Linux part is correct.

Now in U-boot can you check the write size set for nand part.

Or please confirm how offset 56 is considered for Bad block check.

-Thanks Avinash

Frisky,

You got it right! Its the position 56 and 57 creating the trouble. I think you might have to change the position info for nand bad block identification in u-boot. Go through the code drivers/mtd/nand/nand_base.c. You'll get it :)

Renjith,

thank you!

i found that 'nand markbad e0000' will cause nand_write_oob_syndrome() to write the bad block flag. The "pos = steps * (eccsize + chunk);" is set to 0x00000838 (that is, flag will be written in 0x838 - 0x800 and 0x839 - 0x800 ). I'm looking through why it is set to this value.

static int nand_write_oob_syndrome(struct mtd_info *mtd,
struct nand_chip *chip, int page)
{
int chunk = chip->ecc.bytes + chip->ecc.prepad + chip->ecc.postpad;
int eccsize = chip->ecc.size, length = mtd->oobsize;
int i, len, pos, status = 0, sndcmd = 0, steps = chip->ecc.steps;
const uint8_t *bufpoi = chip->oob_poi;

printf("nand_write_oob_syndrome mtd->writesize = %08x\n", mtd->writesize);

/*
* data-ecc-data-ecc ... ecc-oob
* or
* data-pad-ecc-pad-data-pad .... ecc-pad-oob
*/
printf("steps=%d eccsize=%d chunk=%d\n", steps, eccsize, chunk);

if (!chip->ecc.prepad && !chip->ecc.postpad) {
pos = steps * (eccsize + chunk);
steps = 0;
} else
pos = eccsize;

Frisky,

Can you print the values of the following variables?

chip->ecc.bytes

chip->ecc.prepad (assuming 0)

chip->ecc.postpad (assuming 0)

Also change this line 

int chunk = chip->ecc.bytes + chip->ecc.prepad + chip->ecc.postpad;

to 

int chunk = chip->ecc.bytes; and try. 

Ideally bad block markers has to be within the first six (if I remember correctly) bytes. So putting it at 0 and 1 offsets might be more correct.

Also can you search the NAND datasheet, how the factory bad blocks are marked by the vendor? It might be at 0 and 1 as well. So, if both of them fall at the same place, it will be useful later when you for mass production..

Renjith,

Yes, this works for me:)

Cool. I assume all your NAND issues are solved..