use generic DMA mapping code in powerpc V4

[Christian Zigotzky]

On 06 December 2018 at 11:55AM, Christian Zigotzky wrote:
> On 05 December 2018 at 3:05PM, Christoph Hellwig wrote:
>>
>> Thanks.  Can you try a few stepping points in the tree?
>>
>> First just with commit 7fd3bb05b73beea1f9840b505aa09beb9c75a8c6
>> (the first one) applied?
>>
>> Second with all commits up to 5da11e49df21f21dac25a2491aa788307bdacb6b
>>
>> And if that still works with commits up to
>> c1bfcad4b0cf38ce5b00f7ad880d3a13484c123a
>>
> Hi Christoph,
>
> I undid the commit 7fd3bb05b73beea1f9840b505aa09beb9c75a8c6 with the 
> following command:
>
> git checkout 7fd3bb05b73beea1f9840b505aa09beb9c75a8c6
>
> Result: PASEMI onboard ethernet works again and the P5020 board boots.
>
> I will test the other commits in the next days.
>
> @All
> It is really important, that you also test Christoph's work on your 
> PASEMI and NXP boards. Could you please help us with solving the issues?
>
> 'git clone git://git.infradead.org/users/hch/misc.git -b powerpc-dma.5 a'
>
> Thanks,
> Christian
>
>
Today I tested the commit 5da11e49df21f21dac25a2491aa788307bdacb6b.

git checkout 5da11e49df21f21dac25a2491aa788307bdacb6b

The PASEMI onboard ethernet works and the P5020 board boots.

-- Christian