[U-Boot] openrd_ultimate GigEth ports not working

[Alex Zeffertt]

[Cc-ing Prafulla the author of the mvgbe driver]

Hi All,
I contacted the author of that commit and this was his response:

> Yes, most likely it's the caching. Guess your driver is doing DMA andis not handling the cache flushing/invalidation well to avoid coherency
> issues. First of all to confirm that this is indeed the issue you may
> try re-compile your u-boot with CONFIG_SYS_DCACHE_OFF in your config
> header. That should solve the problem, but the right solution will be
> to fix your driver.
>
> br,
> Aneesh

Prafulla, does this make any sense to you?

Regards,

Alex

On 26 July 2011 13:29, Alex Zeffertt <azeffertt at cambridgesys.com> wrote:
>
> git bisect says:
>
> c2dd0d45540397704de9b13287417d21049d34c6 is the first bad commit
> commit c2dd0d45540397704de9b13287417d21049d34c6
> Author: Aneesh V <aneesh at ti.com>
> Date:   Thu Jun 16 23:30:49 2011 +0000
>     armv7: integrate cache maintenance support
>
>     - Enable I-cache on bootup
>     - Enable MMU and D-cache immediately after relocation
>     - Do necessary initialization before enabling d-cache and MMU
>     - Changes to cleanup_before_linux()
>     - Make changes according to the new framework
>
>     Signed-off-by: Aneesh V <aneesh at ti.com>
> :040000 040000 2e80477b0d05ad168feb89ef0e00d9bbd79b0cd0 5505c5f890b2af6e9b54bba915fdf3368abdfb16 M arch
>
> Thanks,
> Alex
>
> On 26 July 2011 12:09, Wolfgang Denk <wd at denx.de> wrote:
>>
>> Dear Alex Zeffertt,
>>
>> In message <CANNiwJKvYkei0qmRC8V5LvTar+q8CzYeTYCpqDjzV34HtCL6kQ at mail.gmail.com> you wrote:
>> >
>> > I can confirm that the issue is the same with OpenRD Ultimate.  I.e.
>> > ethernet is not working in HEAD but it is fine on tag v2011.06.
>>
>> And what says "git bisect" ?
>>
>> 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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>