[U-Boot] request for some debugging hints

[Chander Kashyap]

Dear Christopher Harvey,
One thought.. Just check you are using correct serial port as console.


On 29 June 2011 18:25, Christopher Harvey <charvey at matrox.com> wrote:
> kernel version: 2.6.38
> u-boot version: 2011.06
>
> I've got an ARM (armv7) kernel that I can boot under QEMU without
> problems, but refuses to boot with a bootm command under u-boot.
>
> All I see is "Uncompressing Linux... done, booting the kernel.", then
> nothing else.
>
> I'm also hitting a bug very similar to the following with gdb, so I'm
> having a hard time figuring out exactly which lines are blocking the
> kernel.
> http://sourceware.org/ml/gdb-patches/2011-02/msg00048.html
> but that patch doesn't fix it in my case.
>
> Basically I was hoping for some hints in case somebody here has already
> dealt with a similar problem and could provide some tips to help me
> figure out how to spend my debugging time.
>
> I was under the impression that the second a working kernel got passed
> the "Uncompressing Linux... done, booting the kernel." point there was
> very little that could go wrong since it means the kernel was completely
> loaded into memory and the entry point was picked properly.
>
> The kernel is a very standard kernel, and uboot is a very minimal uboot
> build with no extra soc or board initializations besides memory size.
> eg:
> lowlevel_init is blank
> reset_cpu is an infinite loop
> timers aren't used
>
> any hints or ideas appreciated,
> Chris
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-- 
with warm regards,
Chander Kashyap