[U-Boot] [PATCH v3 03/10] armv7: cache maintenance operations for armv7

Simon Glass
2011-06-16T14:17:27Z

Hi,

I am picking up on this old thread. My main point is that I think the
armv7 cache implementation is a good start and should go into U-Boot.
Aneesh are you planning another patch set? Also see below:

On Tue, May 17, 2011 at 2:58 AM, Aneesh V <aneesh@ti.com> wrote:
> Hi Wolfgang,
>
> On Tuesday 17 May 2011 03:01 PM, Wolfgang Denk wrote:
>> Dear Aneesh V,
>>
>> In message<4DD23D3A.4010001@ti.com> ?you wrote:
>>>
>>>> How much of this is actually needed in the context of U-Boot?
>>>
>>> Please see above. As far as I know OMAP doesn't do DMA in U-Boot.
>>
>> Devices like USB oth Ethernet don't use DMA for data transfers?
>
> Ethernet support is not upstreamed yet. USB doesn't seem to be using
> DMA on a quick check.

There is DMA in the USB EHCI side and this also does d cache range
invalidate / flush.

Regards,
Simon

>
> best regards,
> Aneesh
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