[U-Boot] L2 cache and LCD on sunxi

[Hans de Goede]

Hi,

On 23-12-14 05:36, Simon Glass wrote:
> Hi Hans,
>
> On 22 December 2014 at 09:45, Hans de Goede <hdegoede at redhat.com> wrote:
>> Hi,
>>
>> On 21-12-14 19:52, Simon Glass wrote:
>>>
>>> Hi,
>>>
>>> I ran up a banana PI and noticed that HDMI works in U-Boot. Great!
>>>
>>> Scrolling seems very slow though - is the L2 cache disabled perhaps?
>>
>>
>> I don't think so, but it could be, I think the scrolling code is just
>> very inefficient. Feel free to poke things a bit around this, ARM
>> cache management is not my forte.
>
> I think it need ssomething like the code in exynos/soc.c - see
> v7_outer_cache_enable().
>
> Even with the 7 inch it's very slow.

I've run some tests, and it is not slower then on say the A10 (cortex A8),
also I've been unable to find any docs or allwinner code pointing to
allwinner specific l2 cache init. As such ATM I do not believe that we've
the l2 cache disabled.

Regards,

Hans