[PATCH 1/4] ARM: dts: sun8i: Extend Orange Pi PC dt to also handle the PC Plus

[hdegoede@redhat.com (Hans de Goede)]

There is a new Orange Pi PC Plus available now, rather then adding
yet another dts file for this variant, extend the existing
Orange Pi PC to support the sdio wifi and emmc found on this variant.

Downside of this approach is the following messages in dmesg when run
on the non Plus Orange Pi PC:

sunxi-mmc 1c10000.mmc: fatal err update clk timeout
sunxi-mmc 1c11000.mmc: smc 2 err, cmd 8, RTO !!
sunxi-mmc 1c11000.mmc: smc 2 err, cmd 55, RTO !!
sunxi-mmc 1c11000.mmc: smc 2 err, cmd 55, RTO !!
sunxi-mmc 1c11000.mmc: smc 2 err, cmd 55, RTO !!
sunxi-mmc 1c11000.mmc: smc 2 err, cmd 55, RTO !!
sunxi-mmc 1c11000.mmc: smc 2 err, cmd 1, RTO !!

Note these are completely harmless and there is no adverse effect
to the functioning of the non Plus Orange Pi PC.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
---
 arch/arm/boot/dts/sun8i-h3-orangepi-pc.dts | 40 +++++++++++++++++++++++++++++-
 1 file changed, 39 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/sun8i-h3-orangepi-pc.dts b/arch/arm/boot/dts/sun8i-h3-orangepi-pc.dts
index b8340f7..f9bf260 100644
--- a/arch/arm/boot/dts/sun8i-h3-orangepi-pc.dts
+++ b/arch/arm/boot/dts/sun8i-h3-orangepi-pc.dts
@@ -49,11 +49,13 @@
 #include <dt-bindings/pinctrl/sun4i-a10.h>
 
 / {
-	model = "Xunlong Orange Pi PC";
+	model = "Xunlong Orange Pi PC / PC Plus";
 	compatible = "xunlong,orangepi-pc", "allwinner,sun8i-h3";
 
 	aliases {
 		serial0 = &uart0;
+		/* ethernet0 is the H3 emac, defined in sun8i-h3.dtsi */
+		ethernet1 = &rtl8189ftv;
 	};
 
 	chosen {
@@ -118,6 +120,42 @@
 	status = "okay";
 };
 
+/* Note only present on orangepi pc *plus* */
+&mmc1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&mmc1_pins_a>;
+	vmmc-supply = <&reg_vcc3v3>;
+	bus-width = <4>;
+	non-removable;
+	status = "okay";
+
+	/*
+	 * Explicitly define the sdio device, so that we can add an ethernet
+	 * alias for it (which e.g. makes u-boot set a mac-address).
+	 */
+	rtl8189ftv: sdio_wifi at 1 {
+		reg = <1>;
+	};
+};
+
+/* Note only present on orangepi pc *plus* */
+&mmc2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&mmc2_8bit_pins>;
+	vmmc-supply = <&reg_vcc3v3>;
+	bus-width = <8>;
+	non-removable;
+	cap-mmc-hw-reset;
+	status = "okay";
+};
+
+&mmc2_8bit_pins {
+	/* Increase drive strength for DDR modes */
+	allwinner,drive = <SUN4I_PINCTRL_40_MA>;
+	/* eMMC is missing pull-ups */
+	allwinner,pull = <SUN4I_PINCTRL_PULL_UP>;
+};
+
 &ohci1 {
 	status = "okay";
 };
-- 
2.7.4