Re: NetBSD on A20-OLinuXino-MICRO

[Valery Ushakov <uwe%stderr.spb.ru@localhost>]

[gmane seems to have eaten my previous attempt at replying]

On Fri, Jun 01, 2018 at 19:24:56 +0200, Manuel Bouyer wrote:

> On Tue, May 29, 2018 at 11:18:16AM +0200, Manuel Bouyer wrote:
> > I see what's happening. With the default device tree the allwinner,pipelines
> > properties points to the display frontend devices, and we don't have drivers
> > for that. In this case it fallback to the simple framebuffer driver.
> > But, the drivers for the other parts of the pipeline do reset the hardware
> > in their attach function (and disable clocks).
> > 
> > I could delay the reset to sunxi_dep_attach() and do it only for pipelines
> > we activate, but in this case this means that if a pipeline element is
> > explicitely not present in the device tree, but has been activated by the
> > firmware then it will stay active, draving power.
> > 
> > I'm not sure about the solution at this point, I will have to think more about
> > it ...
> 
> I just commited a fix for this. Actually it doesn't take care of disabling
> video hardware if there's no display at all configured in the device tree,
> but the hardare defaults to disabled after reset. If the user really wants no
> video, then the firmware/uboot should not enable it either I guess ...

Stock SUNXI config now works for me.  Thanks!

-uwe