Pieter wrote:
Hi all
We recently ported a MPC8548 board from U-Boot 1.2 to U-Boot 2009.01. U-Boot seems to work fine except for Flash operations, and we can boot Linux 2.6.27 kernel using nfs.
We are using CFI ( AMD nor flash). The problem presented it self as the inability to erase a sector of flash. With further investigation we became aware that we can not red the flash correctly. It seams like the 1st 16bits of the 32 bit value is read correctly, but instead of reading the second 16bits, the 1st 16 bits are repeated. as shown below ( comparing the output of U-Boot 2009 and U-Boot 1.2
U-Boot 2009:
UBoot=> md f8000020 f8000020: 65716571 73007300 00000000 00000000 eqeqs.s.........U-Boot 1.2
UBoot=> md f8000020 f8000020: 65717575 73000000 00000000 00000000 equus...........
<snip> I found the problem and thought I'll post the solution in case someone down the line makes the same mistake. In porting to U-Boot 2009 I defined the port size in BR0 as 16bit, where it should have be 32 bit.
cheers pieter