[Buildroot] Problem with an MPC8272 build

[Gustavo Zacarias <gustavo@zacarias.com.ar>]

On 08/01/2013 08:49 PM, Jason Rennie wrote:
> Buildroot does run successfully, and I have put the rootfs that is made
> on the device and it does boot successfully with the older kernel (well
> mostly, some networking stuff appears to be missing). But when I put the
> new kernel on the device I get nothing. I've tried enabling early kernel
> debugging but with no success (setting the CPM to the addresses
> suggested by the old kernels output). I also don't seem to be able to
> get U-Boot to work and I need to end up breaking out the BDI2000 anytime
> I try to update U-Boot with the newer version as I brick the device.
> 
> I have tried with the most basic possible build, not tweaking anything
> and basically just doing the stock buildroot build for the MPC8272
> through to poking and tweaking all sorts of thing.
> 
> Any tips? I've attached the old dmesg output if tht helps. I'm
> hopelessly confused and been beating my head against this for a month so
> any help would be greatly appreciated. I'm pretty much out of ideas.

A buildroot .config would help so we can see if there's anything that
could go wrong.
On the toolchain side a 603e should be the target, if that's wrong then
anything you build might fail.
On the kernel side are you building a 2.6.18ish kernel with a new
buildroot or a newer kernel? An updated kernel will very likely need an
updated DTB as well.
Regards.