Hi, all!
We have a board, based on s3c2416, with 128MB of RAM and 1GB of NAND flash. RAM is organized as 2 memory banks with far placed bases:
TOP
UNUSED 64MB
64MB SDRAM
--- 128MB segment base 1 -----
UNUSED 64MB
64MB SDRAM
-- 128MB segment base 0 ------
BOTTOM
So we could have only 64MB as one piece; Due to u-boot reloaction code we need to have u-boot in first 64MB also. And now we have root filesystem which we need to flash using u-boot, which is a little over this 64MB limit.
Is there some way to use second memory bank from u-boot? Is it possible to tftp file in parts and flash it on NAND in parts? (This requires handling of bad blocks too)
We need to flash using u-boot, that's requirement for speedy production.
It is possible to flash filesystems in parts, but for this to work these are needed to be properly split. This raises a problem of bad blocks - writing previous piece might end not where you expect it to end, but a few blocks later. Hand-handling this case is too error-prone.
Thanks a lot, S.