[U-Boot] i.MX5/6 U-Boot: Cache enabling

[Dirk Behme]

On 04.02.2012 11:18, Marek Vasut wrote:
>> Let's discuss how to enable the i.MX5/6 caches in U-Boot:
>>
>> On 03.02.2012 12:00, Stefano Babic wrote:
>>> On 03/02/2012 11:18, Dirk Behme wrote:
>> ...
>>
>>>>> As your concerns are surely related to speed up the boot process, IMHO
>>>>> we can focus efforts to add cache support for MX5 / MX6.
>>>> Ok, sounds good. Any idea what has to be done for this? Or what would be
>>>> the steps for this?
>>> As armv7 architecture, the MX can profit of the work already done for
>>> other SOCs. Functions for enabling / disabling / invalidate caches are
>>> already provided, in arch/arm/lib and arch/arm/cpu/armv7/cache_v7.c. So
>>> at least for MX5/MX6.
>>>
>>> But we should change MXC drivers to be cache-aware. At least the FEC
>>> driver and MMC driver are known to not work when dcache is on.
>> Marek, Troy, Fabio: What do you think is needed to make the i.MX5/6
>> FEC driver cache-aware?
> 
> I already have a partly finished implementation of FEC ethernet with cache 
> support somewhere on my drive.

Do you like to share this?

Many thanks and best regards

Dirk