linux-kernel - [PATCH] ARM: dts: sun8i: add FriendlyArm ZeroPi support

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Date:   Fri, 23 Oct 2020 17:04:52 +0800
From:   Yu-Tung Chang <mtwget@...il.com>
To:     robh+dt@...nel.org
Cc:     mripard@...nel.org, wens@...e.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Yu-Tung Chang <mtwget@...il.com>
Subject: [PATCH] ARM: dts: sun8i: add FriendlyArm ZeroPi support

  The ZeroPi is another fun board developed
  by FriendlyELEC for makers,
  hobbyists and fans.

  ZeroPi key features
  - Allwinner H3, Quad-core Cortex-A7@...GHz
  - 256MB/512MB DDR3 RAM
  - microsd slot
  - 10/100/1000Mbps Ethernet
  - Debug Serial Port
  - DC 5V/2A power-supply

Signed-off-by: Yu-Tung Chang <mtwget@...il.com>
---
 .../devicetree/bindings/arm/sunxi.yaml        |  5 ++
 arch/arm/boot/dts/Makefile                    |  1 +
 arch/arm/boot/dts/sun8i-h3-zeropi.dts         | 69 +++++++++++++++++++
 3 files changed, 75 insertions(+)
 create mode 100644 arch/arm/boot/dts/sun8i-h3-zeropi.dts

diff --git a/Documentation/devicetree/bindings/arm/sunxi.yaml b/Documentation/devicetree/bindings/arm/sunxi.yaml
index efc9118233b4..9392a9a3f7e7 100644
--- a/Documentation/devicetree/bindings/arm/sunxi.yaml
+++ b/Documentation/devicetree/bindings/arm/sunxi.yaml
@@ -246,6 +246,11 @@ properties:
           - const: friendlyarm,nanopi-neo-plus2
           - const: allwinner,sun50i-h5
 
+      - description: FriendlyARM ZeroPi
+        items:
+          - const: friendlyarm,zeropi
+          - const: allwinner,sun50i-h3
+
       - description: Gemei G9 Tablet
         items:
           - const: gemei,g9
diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 4572db3fa5ae..f05e54257947 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -1187,6 +1187,7 @@ dtb-$(CONFIG_MACH_SUN8I) += \
 	sun8i-h3-orangepi-plus2e.dtb \
 	sun8i-h3-orangepi-zero-plus2.dtb \
 	sun8i-h3-rervision-dvk.dtb \
+	sun8i-h3-zeropi.dtb \
 	sun8i-h3-emlid-neutis-n5h3-devboard.dtb \
 	sun8i-r16-bananapi-m2m.dtb \
 	sun8i-r16-nintendo-nes-classic.dtb \
diff --git a/arch/arm/boot/dts/sun8i-h3-zeropi.dts b/arch/arm/boot/dts/sun8i-h3-zeropi.dts
new file mode 100644
index 000000000000..388ad6b6da2b
--- /dev/null
+++ b/arch/arm/boot/dts/sun8i-h3-zeropi.dts
@@ -0,0 +1,69 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (C) 2020 Yu-Tung Chang <mtwget@...il.com>
+ */
+
+#include "sun8i-h3-nanopi.dtsi"
+
+/ {
+	model = "FriendlyARM ZeroPi";
+	compatible = "friendlyarm,zeropi", "allwinner,sun8i-h3";
+
+	aliases {
+		ethernet0 = &emac;
+	};
+
+	reg_gmac_3v3: gmac-3v3 {
+		compatible = "regulator-fixed";
+		pinctrl-names = "default";
+		pinctrl-0 = <&gmac_power_pin_nanopi>;
+		regulator-name = "gmac-3v3";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		startup-delay-us = <100000>;
+		enable-active-high;
+		gpio = <&pio 3 6 GPIO_ACTIVE_HIGH>;
+	};
+};
+
+&ehci0 {
+	status = "okay";
+};
+
+&ohci0 {
+	status = "okay";
+};
+
+&pio {
+	gmac_power_pin_nanopi: gmac_power_pin@0 {
+		pins = "PD6";
+		function = "gpio_out";
+	};
+};
+
+&external_mdio {
+	ext_rgmii_phy: ethernet-phy@1 {
+		compatible = "ethernet-phy-ieee802.3-c22";
+		reg = <7>;
+	};
+};
+
+&emac {
+	pinctrl-names = "default";
+	pinctrl-0 = <&emac_rgmii_pins>;
+	phy-supply = <&reg_gmac_3v3>;
+	phy-handle = <&ext_rgmii_phy>;
+	phy-mode = "rgmii";
+
+	allwinner,leds-active-low;
+	status = "okay";
+};
+
+&usb_otg {
+	status = "okay";
+	dr_mode = "peripheral";
+};
+
+&usbphy {
+	usb0_id_det-gpios = <&pio 6 12 GPIO_ACTIVE_HIGH>; /* PG12 */
+};
-- 
2.29.0