I bought TMDSLCDK138 EVM B/D few months ago and did some stress test on this board.
Testing sequence is, 80 seconds power on and 15 seconds power off, with sequence programmable power supply.
Though all the partition is read only, there's partition information missing with such amount of testing time.
3 hours is shortest, and 3 days are maximum duration time without error.
Sometimes kernel is not loadable, sometimes ramdisk is not readable.
In this case, I can't use TMDSLCDK138's components with my new product.
I tested Squashfs, Cramfs, Jffs2, Yaffs2, EXT2/3 but the result is the same.
Any idea what is the reason of this?
Thank you.
following is test log.
case 1. Kernel partition missing
In: serial
Out: serial
Err: serial
Net: DaVinci-EMAC
Recovery>>> Check Boot Option :
bootcmd : nand read 0xc0700000 0x180000 0x300000; bootm 0xc0700000
Hit any key to stop autoboot: 0
NAND read: device 0 offset 0x180000, size 0x300000
Skipping bad block 0x00180000
Skipping bad block 0x001a0000
Skipping bad block 0x001c0000
Skipping bad block 0x001e0000
Skipping bad block 0x00200000
Skipping bad block 0x002a0000
Skipping bad block 0x002c0000
Skipping bad block 0x002e0000
Skipping bad block 0x00300000
3145728 bytes read: OK
Wrong Image Format for bootm command
ERROR: can't get kernel image!
Sanion-Boot >
case 2. Ramdisk missing
## Booting kernel from Legacy Image at c0700000 ...
Kernel Load Addr Test by sootoo23: c0700000
Image Name: Linux-3.3.0
Image Type: ARM Linux Kernel Image (uncompressed)
Data Size: 2065704 Bytes = 2 MiB
Load Address: c0008000
Entry Point: c0008000
Verifying Checksum ... OK
Loading Kernel Image ... OK
OK
Starting kernel ...
Uncompressing Linux... done, booting the kernel.
=================중간 생략 =================
console [netcon0] enabled
netconsole: network logging started
davinci_emac davinci_emac.1: using random MAC addr: 66:03:b8:d2:05:2f
VFS: Mounted root (squashfs filesystem) readonly on device 31:3.
Freeing init memory: 156K
end_request: I/O error, dev mtdblock3, sector 6544
SQUASHFS error: squashfs_read_data failed to read block 0x31d1a1
SQUASHFS error: Unable to read data cache entry [31d1a1]
SQUASHFS error: Unable to read page, block 31d1a1, size 1080000
SQUASHFS error: Unable to read data cache entry [31d1a1]
SQUASHFS error: Unable to read page, block 31d1a1, size 1080000
SQUASHFS error: Unable to read data cache entry [31d1a1]
SQUASHFS error: Unable to read page, block 31d1a1, size 1080000