[U-Boot-Users] How to Handel Non-Continuous Memory Regions

I've got an interesting problem. If loading a large image to memory and then copying it to flash it gets corrupted. 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.

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

The processor is a Cirrus Logic EP9302 ARM920T.

What would the most appropriate way of handling files larger than 8MBytes?