[ELDK] udbg and early debug support for MPC5200

Wolfgang Denk wd at denx.de
Fri Oct 30 19:04:01 CET 2009

Dear "Chris Alfred",

In message <73415565649A4A1283D04789B1FAF9E2 at kos> you wrote:
> We have built a custom MPC5200B board similar to the Lite5200b. u-boot 
> works fine, but we do not get any serial output when we transfer to 
> the linux kernel.

Which exact kernel version are you using? [git commit id?]

Did you adpt the device tree source to your hardware, and how do  you
pass the device tree blob to the kernel?

And what exactly is your boot command?

> We invoke the kernel with console=ttyPSC0,115200


> So I tried setting up early debug based on:
> http://www.mail-archive.com/linuxppc-dev@lists.ozlabs.org/msg22667.html

Um... why ?

> Has anyone got a patch that works with the latest kernel git?

Patch to fix what? Which problem are you tring to solve?

Support for the MPC5200 is in really good shape these days; I'm not
aware of any patches needed.

> Argh! It's frustrating that the kernel structure keeps changing.

What exactly do you mean? 

Best regards,

Wolfgang Denk

DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
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