[U-Boot] onenand bad block handling

[Geiger Ho]

Hi all,

  I am working on an ARM platform with OneNAND as the permanent storage 
for u-boot, Linux kernel and rootfs. I am using u-boot-2009.03 and linux 
kernel 2.6.27. I have some questions about the bad block handling of 
OneNAND.

  1. How does the u-boot handle bad block for onenand?
  2. If u-boot is creating a bad block table, does it need to pass to 
the kernel? If not, how to ensure their bad block table are in sync?
  3. How to deal with bad blocks after the writing of the u-boot, kernel 
and rootfs image? Is it the job of UBI?

  Thanks in advance.

Best regards,
Geiger