Wandboard support

[Warner Losh]

On Nov 1, 2013, at 1:34 PM, Adrian Chadd wrote:

> On 1 November 2013 10:29, Warner Losh <imp at bsdimp.com> wrote:
>> 
>> On Oct 31, 2013, at 10:58 PM, Adrian Chadd wrote:
>> 
>>> Hi!
>>> 
>>> On 31 October 2013 19:17, Ian Lepore <ian at freebsd.org> wrote:
>>>> As of r257489 we now have some support for i.MX6 in general and
>>>> Wandboard specifically.  There is much work to do, especially in the
>>>> area of clock and power management and pinmux control, and someone other
>>>> than me will have to look towards graphics and sound support (I have no
>>>> skills in those areas).
>>>> 
>>> 
>>> Cool!
>>> 
>>> Can you describe what you need in the clock / power management areas?
>> 
>> We don't have an infrastructure to do this right now.
>> 
>> Some ports do this on an ad-hoc basis.
>> 
>> The usual needs are to have a DAG relationship between different parts of the system so you can turn on and tune clocks, as well as power blocks which may be necessary to power the clock and/or basic-blocks in the SoC. The latest chips have grown quite complex.
> 
> Well we can plan this stuff out at the next get-together. But first,
> I'd like to finish tidying up the MIPS infrastructure stuff before we
> tackle the ARM infrastructure stuff. :)

Yea, I'm still focused on MIPS... The problem statement was from what I know about the ARM clock/power code for each of the SoCs... It shouldn't be viewed as a 'I got this problem and am working on code' at all :)

Warner