[linux-sunxi] [PATCH RFC 2/2] ARM: dts: sun7i: Olimex A20-SOM-EVB: Enable mmc3 (baseboard SD socket)

[Karsten Merker]

The Olimex A20-SOM-EVB is an evaluation board for the Olimex
A20-SOM system-on-module. The baseboard provides a full-size SD
socket (connected to mmc3) in addition to the micro-SD socket on
the SOM itself (which is connected to mmc0).

Enable the mmc3 controller in the dts.

Signed-off-by: Karsten Merker <mer...@debian.org>
---
 arch/arm/boot/dts/sun7i-a20-olimex-som-evb.dts | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/arch/arm/boot/dts/sun7i-a20-olimex-som-evb.dts 
b/arch/arm/boot/dts/sun7i-a20-olimex-som-evb.dts
index 6562a6bc..6a3d95d 100644
--- a/arch/arm/boot/dts/sun7i-a20-olimex-som-evb.dts
+++ b/arch/arm/boot/dts/sun7i-a20-olimex-som-evb.dts
@@ -176,6 +176,16 @@
        status = "okay";
 };
 
+&mmc3 {
+       pinctrl-names = "default";
+       pinctrl-0 = <&mmc3_pins_a>, <&mmc3_cd_pin_olimex_som_evb>;
+       vmmc-supply = <&reg_vcc3v3>;
+       bus-width = <4>;
+       cd-gpios = <&pio 7 0 GPIO_ACTIVE_HIGH>; /* PH0 */
+       cd-inverted;
+       status = "okay";
+};
+
 &ohci0 {
        status = "okay";
 };
@@ -198,6 +208,13 @@
                allwinner,drive = <SUN4I_PINCTRL_20_MA>;
                allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
        };
+
+       mmc3_cd_pin_olimex_som_evb: mmc3_cd_pin@0 {
+               allwinner,pins = "PH0";
+               allwinner,function = "gpio_in";
+               allwinner,drive = <SUN4I_PINCTRL_10_MA>;
+               allwinner,pull = <SUN4I_PINCTRL_PULL_UP>;
+       };
 };
 
 &reg_ahci_5v {
-- 
2.1.4

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