Re: [U-Boot-Users] U-Boot-1.2.0 - NAND bad block management

Hi,

Can any one help me out in this issue?

Thanks in advance.

Thanks, Vaibhav

On 10/3/07, Vaibhav Hiremath hvaibhav@gmail.com wrote:

Hi,

I have ported U-Boot-1.2.0 to ARM11176 core, which supports NAND booting (big page NAND device).

I have one query - How U-boot-1.2.0 handles bad block? As I understand at the booting time U-Boot-1.2.0 scans whole NAND device and maintains BBT. This absolutely fine with me, but what will happen if read operation fails after that, say page read has generated ECC error. U-Boot-1.2.0 doesn't mark this block as a bad block.

Is this some kind of loop hole in U-Boot NAND support? Since there is no other cause appart from Write and Erase fail which will mark the blcok as a bad. Ideally it should mark that block as a bad for ECC error, since it's failing of read operation.

Thanks in advance.

Thanks, Vaibhav