[U-Boot] U-boot Porting

[Aaron Williams]

Hi Andreas,

We have been shipping 2011.03 for some time and internally are planning 
to use 2012.07 when it is released since we are tracking the top of 
trunk. We have made a lot of improvements since then and added a lot of 
new capabilities.

-Aaron

On 07/05/2012 06:18 AM, Andreas Bießmann wrote:
> Dear sayed zahid,
>
> On 05.07.2012 13:42, sayed zahid wrote:
>> Hi ,
>> I have basic knowledge of porting u-boot to a new board. But now i have got
>> a task to port u-boot on cavium mips based board. As i know that mips
>> architecture is already supported, but will it support all cavium octeon
>> mips variants?
> I guess no. I had to work with some non mainlined version of u-boot
> provided by cavium a year ago (or something around that). At that time
> we got a
>
> ---8<---
> abiessmann at azuregos % git grep U_BOOT_VERSION include/version.h
> include/version.h:#define       U_BOOT_VERSION  "U-Boot 1.1.1"
> --->8---
>
> :(
>
> AFAIR there was a lot of basic stuff missing in mainline U-Boot to get
> Cavium mips64 running at that time so I didn't start to port these
> proprietary changes (well it would not have been accepted the way it was
> written down; beside that cavium forced us to sign a NDA for that piece
> of GPL code).
>
> I have not followed their open source efforts since then, but I saw a
> lot of work on the linux-mips list by David Daney and I think Aaron
> Williams is working for Cavium too and is on this list. Maybe one of
> them can comment?
>
>> Please put some light on this. I would be glad if you guys,
>> give my some idea to where to start with or suggest some documents which
>> will help me understand and port on a new architecture
> You should not hesitate to contact their support and ask for proper
> mainline support of u-boot ;)
>
> Enough Cavium bashing.
>
> Regarding your question for documents, I'm sorry I can not help you
> here. I recommend start working with some mainlined device which is
> comparable, get firm with the architecture, try to find commonalities,
> get the new cpu in u-boot step by step.
>
> Best regards
>
> Andreas Bießmann
>


-- 
Aaron Williams
Software Engineer
Cavium, Inc.
(408) 943-7198  (510) 789-8988 (cell)