[U-Boot-Users] U-Boot and Linux on Walnut based board

[Brian S. Park]

Hi,
I'm trying to get the latest U-Boot 1.3.3 and Linux (any version) 
working on our custom board based on Walnut demo board. I have used 
U-Boot 1.0.0 and Linux 2.4.20 on our other similar board and that 
worked out well. However, a lot seems to have changed since then.

Since I'm using ELDK 4.1 now (used ELDK 2.1 for the old project), the 
old code does not compile properly. So, I'm trying to get the latest 
code to work with our new board and are having some issues.

1. U-Boot 1.3.3 works. But it does not boot the old Linux image or 
Linux 2.4.25 (latest 2.4?) compiled using ELDK 4.1
2. U-Boot 1.0.0 boots Linux 2.4.25 (latest 2.4?) compiled using ELDK 4.1.

Then I found out that the kernel parameter passing has changed and I 
should use powerpc architecture instead of ppc. But Linux 2.4.25 does 
not have powerpc architecture. So, I'm now trying 2.6 kernel. Using 
linux-2.6-latest.tar.bz2 from ftp://ftp.denx.de/pub/linux/. However, 
the powerpc architecture does not have walnut.c for configuring the 
board. I need to customize it since our custom board does not have FPGA.

What's the best way to build linux kernel that works on U-Boot 1.3.3?

Thanks.

Brian


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