On Wed, Dec 26, 2018 at 02:37:26PM +0300, Nikolai Zhubr wrote:
> And while at it, why not finally add the DT register definitions for
> Allwinner A20 NFC. I'm certainly not the author of these, and they have been
> around for many years already. Its quite unlikely they will suddenly change,
> or vary between different A20-based devices. The A20 SoC is gradually
> becoming obsolete, so why wait any more. Note: one whould typically need to
> also add NFC node definition on top of this in order to actually use it.
>
> Signed-off-by: Nikolai Zhubr <n-a-zh...@yandex.ru>
> ---
> arch/arm/dts/sun7i-a20.dtsi | 69
> +++++++++++++++++++++++++++++++++++++++++++++
> 1 file changed, 69 insertions(+)
>
> diff --git a/arch/arm/dts/sun7i-a20.dtsi b/arch/arm/dts/sun7i-a20.dtsi
> index e529e4f..6f96693 100644
> --- a/arch/arm/dts/sun7i-a20.dtsi
> +++ b/arch/arm/dts/sun7i-a20.dtsi
> @@ -920,6 +920,75 @@
> pins = "PI20", "PI21";
> function = "uart7";
> };
> + nand_pins_a: nand_base0@0 {
> + allwinner,pins = "PC0", "PC1", "PC2",
> + "PC5", "PC8", "PC9", "PC10",
> + "PC11", "PC12", "PC13", "PC14",
> + "PC15", "PC16";
> + allwinner,function = "nand0";
> + allwinner,drive = <0>;
> + allwinner,pull = <0>;
allwinner,{pins,function,drive,pull} syntax has been deprecated in
favor or general pinctrl syntax.
You can check how sun5i.dtsi defines these blocks.
> + };
> + nand_cs0_pins_a: nand_cs@0 {
> + allwinner,pins = "PC4";
> + allwinner,function = "nand0";
> + allwinner,drive = <0>;
> + allwinner,pull = <0>;
> + };
> + nand_cs1_pins_a: nand_cs@1 {
> + allwinner,pins = "PC3";
> + allwinner,function = "nand0";
> + allwinner,drive = <0>;
> + allwinner,pull = <0>;
> + };
> + nand_cs2_pins_a: nand_cs@2 {
> + allwinner,pins = "PC17";
> + allwinner,function = "nand0";
> + allwinner,drive = <0>;
> + allwinner,pull = <0>;
> + };
> + nand_cs3_pins_a: nand_cs@3 {
> + allwinner,pins = "PC18";
> + allwinner,function = "nand0";
> + allwinner,drive = <0>;
> + allwinner,pull = <0>;
> + };
> + nand_cs4_pins_a: nand_cs@4 {
> + allwinner,pins = "PC19";
> + allwinner,function = "nand0";
> + allwinner,drive = <0>;
> + allwinner,pull = <0>;
> + };
> + nand_cs5_pins_a: nand_cs@5 {
> + allwinner,pins = "PC20";
> + allwinner,function = "nand0";
> + allwinner,drive = <0>;
> + allwinner,pull = <0>;
> + };
> + nand_cs6_pins_a: nand_cs@6 {
> + allwinner,pins = "PC21";
> + allwinner,function = "nand0";
> + allwinner,drive = <0>;
> + allwinner,pull = <0>;
> + };
> + nand_cs7_pins_a: nand_cs@7 {
> + allwinner,pins = "PC22";
> + allwinner,function = "nand0";
> + allwinner,drive = <0>;
> + allwinner,pull = <0>;
> + };
> + nand_rb0_pins_a: nand_rb@0 {
> + allwinner,pins = "PC6";
> + allwinner,function = "nand0";
> + allwinner,drive = <0>;
> + allwinner,pull = <0>;
> + };
> + nand_rb1_pins_a: nand_rb@1 {
> + allwinner,pins = "PC7";
> + allwinner,function = "nand0";
> + allwinner,drive = <0>;
> + allwinner,pull = <0>;
> + };
> };
>
> timer@1c20c00 {
> --
> 2.1.2
>
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