target/linux/sunxi/patches-4.9/0022-arm64-allwinner-pine64-add-MMC-support.patch

   1 From ebe3ae29c6314217edf40d9ee23c36d610ff0fb8 Mon Sep 17 00:00:00 2001
   2 From: Andre Przywara <andre.przywara@arm.com>
   3 Date: Tue, 10 Jan 2017 01:22:31 +0000
   4 Subject: arm64: allwinner: pine64: add MMC support
   5
   6 All Pine64 boards connect an micro-SD card slot to the first MMC
   7 controller.
   8 Enable the respective DT node and specify the (always-on) regulator
   9 and card-detect pin.
  10 As a micro-SD slot does not feature a write-protect switch, we disable
  11 this feature.
  12
  13 Signed-off-by: Andre Przywara <andre.przywara@arm.com>
  14 Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
  15 Acked-by: Chen-Yu Tsai <wens@csie.org>
  16 ---
  17  arch/arm64/boot/dts/allwinner/sun50i-a64-pine64.dts | 20 ++++++++++++++++++++
  18  1 file changed, 20 insertions(+)
  19
  20 --- a/arch/arm64/boot/dts/allwinner/sun50i-a64-pine64.dts
  21 +++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-pine64.dts
  22 @@ -44,6 +44,8 @@
  23
  24  #include "sun50i-a64.dtsi"
  25
  26 +#include <dt-bindings/gpio/gpio.h>
  27 +
  28  / {
  29         model = "Pine64";
  30         compatible = "pine64,pine64", "allwinner,sun50i-a64";
  31 @@ -55,6 +57,13 @@
  32         chosen {
  33                 stdout-path = "serial0:115200n8";
  34         };
  35 +
  36 +       reg_vcc3v3: vcc3v3 {
  37 +               compatible = "regulator-fixed";
  38 +               regulator-name = "vcc3v3";
  39 +               regulator-min-microvolt = <3300000>;
  40 +               regulator-max-microvolt = <3300000>;
  41 +       };
  42  };
  43
  44  &ehci1 {
  45 @@ -71,6 +80,17 @@
  46         bias-pull-up;
  47  };
  48
  49 +&mmc0 {
  50 +       pinctrl-names = "default";
  51 +       pinctrl-0 = <&mmc0_pins>;
  52 +       vmmc-supply = <&reg_vcc3v3>;
  53 +       cd-gpios = <&pio 5 6 GPIO_ACTIVE_HIGH>;
  54 +       cd-inverted;
  55 +       disable-wp;
  56 +       bus-width = <4>;
  57 +       status = "okay";
  58 +};
  59 +
  60  &ohci1 {
  61         status = "okay";
  62  };