[U-Boot-Users] U-Boot on Alchemy AU1000
clh at net1plus.com
Thu May 15 15:37:43 CEST 2003
Has anyone done any work with U-Boot on the AU1000 processor? I
would like to understand the level of effort required to port U-Boot
to a board based on this processor. I am intimately familiar with
PPCBoot/U-Boot on PowerPC platforms and numerous PPC
implementations. However, I'm just starting the climb up the 'MIPS'
learning curve. :)
According to the AMD documentation, the AU1000 is based in the
'MIPS32' instruction set/architecture, which I presume is different
from R3000/R4000 for which I see some level of support in the
current U-Boot release. Grepping through a recent Linux source
tree, I do see there is a specific CONFIG_CPU_* for MIPS32, and I've
taken a brief look at where this is used. Specifically MMU and some
CPU features appear to be handled differently from R3K/4K.
I'd appreciate any input/feedback on what would be required to add
support in U-Boot for this processor/architecture.
Thanks in advance,
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