On Thu, Apr 10, 2014 at 03:07:54PM +0200, Antoine Ténart wrote:
> The uart0 pinmux configuration is in the dtsi because uart0 will always
> use uart0-pmux to work, no other possibility. Same thing for uart1.
>
> Signed-off-by: Antoine Ténart <antoine.ten...@free-electrons.com>
> ---
> arch/arm/boot/dts/berlin2.dtsi | 20 ++++++++++++++++++++
> arch/arm/boot/dts/berlin2cd.dtsi | 13 +++++++++++++
> arch/arm/boot/dts/berlin2q.dtsi | 20 ++++++++++++++++++++
> 3 files changed, 53 insertions(+)
>
> diff --git a/arch/arm/boot/dts/berlin2.dtsi b/arch/arm/boot/dts/berlin2.dtsi
> index 56a1af2f1052..43eb90c36050 100644
> --- a/arch/arm/boot/dts/berlin2.dtsi
> +++ b/arch/arm/boot/dts/berlin2.dtsi
> @@ -176,6 +176,22 @@
> };
> };
>
> + pinctrl: pinctrl@0 {
> + compatible = "marvell,berlin2-pinctrl";
> + reg = <0xea0000 0x08>, <0xfc0000 0x44>;
> + reg-names = "global_base", "apb_base";
> +
> + uart0_pmux: uart0-pmux {
> + berlin,group = "GSM4";
> + berlin,function = <0>;
> + };
> +
> + uart1_pmux: uart1-pmux {
> + berlin,group = "GSM5";
> + berlin,function = <1>;
Hi Antoine
This very much looks like black magic.
I assume the data sheet is not available? So i think you need to
document all possible combinations of values of group and function.
Maybe you can add a file in
arch/arm/boot/dts/include/dt-bindings/pinctrl/
with something like
#define GSM4_UART0 0
#define GSM5_UART1 1
#define GSM12_UART0 1
#define GSM12_IrDA0 1
#define GSM12_GPIO 2
Andrew
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