In message c13b1cfc0807240756j243b6019xc95a07638c4ad2b2@mail.gmail.com you wrote:
I've got an interesting problem. If loading a large image to memory and then copying it to flash it gets corrupted.
I think copying to flash is completely unrelated to your problem.
It appears to happen when the image size becomes larger then a bank of SDRAM. I've got a 32 MByte SDRAM that appears as 4 banks of 8 MBytes.
You fail to mention an essential fact here.
The system is using u-boot 1.1.3 and we will move to 1.3.3 soon. The memory regions are broken up like this.
0xE0000000 - 0xE07FFFFF 0xE1000000 - 0xE17FFFFF 0xE4000000 - 0xE47FFFFF 0xE5000000 - 0xE57FFFFF
It seemd your 4 banks are mapped so that they do NOT form a contiguous region - what do you think how this is supposed to work?
What would the most appropriate way of handling files larger than 8MBytes?
Make sure to map your memory such that it forms a single contiguous region as it should.
Best regards,
Wolfgang Denk