Trouble starting AP cpu's on all winner R40/V40 chip, help needed?

[Emmanuel Vadot]

On Tue, 15 Oct 2019 23:02:54 +0200
Søren Schmidt <soren.schmidt at gmail.com> wrote:

> 
> 
> >> 
> >> Success, I now have all 4 cores running, took a little experimenting though, release the power switch/clamp is non-std too.
> > 
> > Cool.
> > 
> >> Now to the last part, the gmac 1G ether controller :)
> > 
> > What's missing ? is it dwc or awg ?
> 
> As far as I can tell it is awg type, but possibly with its own deficiencies :)

 I guess it's awg since it's sun8i. The dts seems to say that it needs
the ccu to be a syscon interface which will be not hard to do but seems
very wrong.

> >> PS: I have had to add devices to the .dtsi and dts files for the r40/v40 for this to work at all, std-linux doesn?t support this setup either.
> > 
> > What was missing ?
> 
> It misses the dma controller and iosc clock, and possibly the gmac clocks in sun8i-r40.dtsi, ahci, echi2, and the gmac stuff in sun8i-v40-m2-berry.dts

 For what I can see the gmac clocks are there. 
 Is the iosc the 16MHz clock that I see in the clock diagram ? If yes I
wonder why it's not present in the dts ...

> > 
> >> PPS: when this is all done, any chance for it to get into the official sources ? (Yeah I retired my src commit bit long ago :)) 
> > 
> > Sure open a review on phabricator and add me as a reviewer.
> 
> OK, will do, but I?ll give the gmac a try first and get more testing done, its compiling world now on a SATA SSD, that will take some time :)
> 
> -Søren

-- 
Emmanuel Vadot <manu at bidouilliste.com>