[U-Boot] [PATCH v4 2/9] sunxi: add sun7i pinmux and gpio support

[Ian Campbell]

On Thu, 2014-05-01 at 19:40 +0100, Ian Campbell wrote:
> This patch adds the basic pinmux and gpio support for the Allwinner A20 (sun7i)
> processor. This code will not been compiled until the build is hooked up in a
> later patch. It has been split out to keep the patches manageable.
> 
> Signed-off-by: Chen-Yu Tsai <wens at csie.org>
> Signed-off-by: Hans de Goede <hdegoede at redhat.com>
> Signed-off-by: Ma Haijun <mahaijuns at gmail.com>
> Signed-off-by: Oliver Schinagl <oliver at schinagl.nl>
> Signed-off-by: Henrik Nordström <henrik at henriknordstrom.net>
> Signed-off-by: Ian Campbell <ijc at hellion.org.uk>
> Reviewed-by: Tom Rini <trini at ti.com>
> Acked-by: Marek Vasut <marex at denx.de>
> Cc: Stefan Roese <sr at denx.de>
> Cc: Tom Cubie <Mr.hipboi at gmail.com>
> ---
> v4: Based on d9fe0a1e061e "sunxi: mksunxiboot: remove unnecessary casts."

- clock_get_pll6 moved to clock_sun4i.c.
- fixed coding style of comment in read_timer.