[U-Boot] [PATCH v1 1/2] sunxi: sun50i/a64: enabled GPIO via sunxi_gpio.c

[Chen-Yu Tsai <wens@csie.org>]

On Sat, Feb 18, 2017 at 1:50 AM, Philipp Tomsich
<philipp.tomsich@theobroma-systems.com> wrote:

Some description would be nice, such as:

The A64 has the standard Allwinner pin controller with pin banks B ~ L.

> X-AffectedPlatforms: A64-uQ7
> Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
> ---
>  drivers/gpio/sunxi_gpio.c | 6 ++++++
>  1 file changed, 6 insertions(+)
>
> diff --git a/drivers/gpio/sunxi_gpio.c b/drivers/gpio/sunxi_gpio.c
> index 8d2bb18..68dd9fe 100644
> --- a/drivers/gpio/sunxi_gpio.c
> +++ b/drivers/gpio/sunxi_gpio.c
> @@ -344,20 +344,26 @@ static const struct sunxi_gpio_soc_data soc_data_l_3 = {
>  static const struct udevice_id sunxi_gpio_ids[] = {
>         ID("allwinner,sun4i-a10-pinctrl",       a_all),
>         ID("allwinner,sun5i-a10s-pinctrl",      a_all),
>         ID("allwinner,sun5i-a13-pinctrl",       a_all),
>         ID("allwinner,sun6i-a31-pinctrl",       a_all),
>         ID("allwinner,sun6i-a31s-pinctrl",      a_all),
>         ID("allwinner,sun7i-a20-pinctrl",       a_all),
>         ID("allwinner,sun8i-a23-pinctrl",       a_all),
>         ID("allwinner,sun8i-a33-pinctrl",       a_all),
>         ID("allwinner,sun8i-a83t-pinctrl",      a_all),
>         ID("allwinner,sun8i-h3-pinctrl",        a_all),
>         ID("allwinner,sun9i-a80-pinctrl",       a_all),
> +       /* This is not strictly correct for the A64, as it is missing
> +        * bank 'A'. Yet, the register layout in the pinctrl block is
> +        * backward compatible and any accesses to the registers that
> +        * normally control bank 'A' will have no adverse effect.
> +        */

This is true for all the tablet oriented SoCs (Ax3) in the list.

> +       ID("allwinner,sun50i-a64-pinctrl",      a_all),
>         ID("allwinner,sun6i-a31-r-pinctrl",     l_2),
>         ID("allwinner,sun8i-a23-r-pinctrl",     l_1),
>         ID("allwinner,sun8i-a83t-r-pinctrl",    l_1),
>         ID("allwinner,sun8i-h3-r-pinctrl",      l_1),
>         ID("allwinner,sun9i-a80-r-pinctrl",     l_3),
>         { }
>  };
>
> --
> 1.9.1
>