[U-Boot] NAND bad block table

Hi Scott and others,

I have a question regarding BBT position and number of blocks allocated for BBT.

Did you face the issue with last 4 blocks broken in any NAND flash device since the default option in Linux/u-boot BBM is last 4 blocks?

It doesn't mean that if the last 4 blocks are broken than the NAND flash device is broken too. Also I haven't seen any common binding for Linux kernel to change it.

Has someone tried to improve this algorithm or process of storing BBT in a better way. For example just look for BBT from the end till any limit?

Thanks, Michal