I can't seem to get the CP command to work at all. I want to test it by doing a simple SDRAM copy. I know the SDRAM works and I know where it is because I can use tftp to load a kernel image, and then boot the kernel from RAM. I am using the linuxstamp http://opencircuits.com/Linuxstamp which is based on atmel's at91rm9200. The main version I have been using is a patched version of 1.1.6. I have also tried 1.3.0-rc3. Both versions have the same result. If I do
tftpboot 20100000 uImage
This works. If I do
md 20000000
or
md 20001000
It works, but if I do
cp 20000000 20001000 256
I get the error "Copy to Flash... General Flash Programming Error" Why does it think this is a flash operation? I am using RAM addresses. If I do
protect off all
It doesn't change anything
I feel like I don't understand something important about how CP works. Please help.
thanks, Paul