On Wed, 2008-08-13 at 08:34 +0900, Kyungmin Park wrote:
Hi,
On Tue, Aug 12, 2008 at 8:11 PM, Stefan Roese sr@denx.de wrote:
On Tuesday 12 August 2008, Kyungmin Park wrote:
On Monday 11 August 2008, Kyungmin Park wrote:
Actually the Samsung implemented the UBI support on U-boot already and has used it internally. The big difference is the code base. It's based on kernel UBI code. Yes it's not fit well to u-boot ecosystem so it created the ubi wrapper for u-boot.
And how does NAND/OneNAND booting with UBI support fit into this? I assume that you have some size restrictions for the IPL/SPL on your platforms as well.
It's not yet covered. it's TODO
I see.
Yes, we should make a u-boot within one block size since flash only guarantees the first one block as bad block free. e.g., exactly (128KiB - 2KiB) size if OneNAND case. For this, we need to code or size optimization. If this is solved, we can use flash as bad block free device with UBI.
An alternative to that is to have a very small IPL that loads U-Boot to DRAM as the SPL. That would require some relocatable support in U-Boot.
josh