DM6467 loading U-Boot problem--Nand block is bad!

Lian

Intellectual 370 points

I want to flash UBL and U-Boot to NAND using Serial Flasher, I just follow the steps in this link :

http://processors.wiki.ti.com/index.php/DM6467_EVM_Installation#Flashing_UBL_and_U-Boot_to_NAND_using_Serial_Flasher

I type following command at command prompt:

but the flashing is failed. And the following information came out.

As the prompting message says, that's because the nand block 0x06~0x33 is bad.

How should I do to resolve this problem? Please help. Thanks a lot !

over 14 years ago

0 Brandy Jabkiewicz over 14 years ago

Mastermind 6325 points

Have you tried doing a global erase of the nand yet? We found that the TI NAND routines would call a block bad if something was accidentally written in the spare bytes of the NAND. A global erase fixed the problem.

0 Lian over 14 years ago in reply to Brandy Jabkiewicz

Intellectual 370 points

Thanks a lot ! Your suggestion is so good. After I erase the nandflash, it's all right!

0 Brandy Jabkiewicz over 14 years ago in reply to Lian

Mastermind 6325 points

No problem!

Good luck with your project!

0 NGUYEN ManhDung over 8 years ago in reply to Brandy Jabkiewicz

Prodigy 100 points

Dear,

I have got the same problem when downloading the ubl and u-boot. How can I do global erase nand flash.

Thank you!

0 Dwarakesh Radhakrishnan over 8 years ago in reply to NGUYEN ManhDung

Guru 13660 points

Hi NGUYEN,

If in uboot command line then try
# nand scrub
# nand erase 0x0 0x1ff (where 0x0 is starting offset. 0x1ff is example size. Convert your NAND size and provide proper value for size)
If in kernel, please try
# flash_eraseall (Download, cross compile and use MTD Utils if not present)

Please Note:

1. Make sure you are familiar with other booting options like SDCard. Boot from SDCard or other booting option, when trying full erase.

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DM6467 loading U-Boot problem--Nand block is bad!