[U-Boot] [PATCH v2 6/6] dm: sunxi: Add support for serial using driver model

[Ian Campbell]

On Mon, 2014-10-27 at 18:06 -0600, Simon Glass wrote:
> Hi Ian,
> 
> On 24 October 2014 03:42, Ian Campbell <ijc at hellion.org.uk> wrote:
> > On Wed, 2014-10-22 at 22:02 -0600, Simon Glass wrote:
> >> Add a driver for the designware serial UART used on sunxi. This just
> >> redirects to the normal ns16550 driver.
> >>
> >> Add a stdout-path to the device tree so that the correct UART is chosen.
> >>
> >> Signed-off-by: Simon Glass <sjg at chromium.org>
> >
> > Should the UART related code in
> > arch/arm/cpu/armv7/sunxi/board.c:gpio_init() be nobbled in this
> > configuration?
> 
> Yes I think that needs attention. Ideally we should be able to have
> this handled by the serial driver (requesting the pinmux it needs) but
> we don't have infrastructure for that as yet.

Ah, I thought your earlier GPIO patches were that, but I suppose not.

> Suggestions? What does the kernel do here?

It has pinmux infra.

In the meantime could we somehow replace/augment the #ifdef chain in
gpio_init with something keyed off the stdout alias perhaps?

Ian.