Rescue the devkit8000

將 MLO, u-boot.bin 及 flash-uboot.bin 放入 sd card 中, 按著 BOOT_KEY 不放, 然後開啟電源

如果只出現:
Texas Instruments X-Loader 1.41
Starting OS Bootloader...
則重新 format sd card, 再放入 MLO, u-boot.bin 及 flash-uboot.bin
OMAP3 DevKit8000 # mmcinit
OMAP3 DevKit8000 # fatload mmc 0:1 80000000 flash-uboot.bin
OMAP3 DevKit8000 # nand unlock
OMAP3 DevKit8000 # nand ecc sw
OMAP3 DevKit8000 # nand erase 80000 160000
OMAP3 DevKit8000 # nand write.i 80000000 80000 160000

錯誤訊息:
Texas Instruments X-Loader 1.41
Starting OS Bootloader...

U-Boot 1.3.3-svn (Feb  4 2010 - 15:16:04)

OMAP3530-GP rev 2, CPU-OPP2 L3-165MHz
OMAP3 DevKit8000 Board + LPDDR/NAND
DRAM:  256 MB
NAND:  256 MiB
Error: Bad compare! failed
nand_read_ecc: Failed ECC read, page 0x000004c0
Using default environment

In:    serial
Out:   serial
Err:   serial
Hit any key to stop autoboot:  0

NAND read: device 0 offset 0x280000, size 0x240000
Error: Bad compare! failed
nand_read_ecc: Failed ECC read, page 0x00000500
Error: Bad compare! failed
nand_read_ecc: Failed ECC read, page 0x00000500
reading NAND page at offset 0x280000 failed
 2359296 bytes read: ERROR
Wrong Image Format for bootm command
ERROR: can't get kernel image!
OMAP3 DevKit8000 #

解決方法:
OMAP3 DevKit8000 # setenv bootcmd 'nand ecc sw;nand read.i 80300000 280000 240000;bootm 80300000'
OMAP3 DevKit8000 # saveenv

正常開機訊息:
Texas Instruments X-Loader 1.41
Starting OS Bootloader...

U-Boot 1.3.3-svn (Feb  4 2010 - 15:16:04)

OMAP3530-GP rev 2, CPU-OPP2 L3-165MHz
OMAP3 DevKit8000 Board + LPDDR/NAND
DRAM:  256 MB
NAND:  256 MiB
In:    serial
Out:   serial
Err:   serial
Hit any key to stop autoboot:  0

NAND read: device 0 offset 0x280000, size 0x240000
 2359296 bytes read: OK