[PATCH v6 2/2] rockchip: rk3399: Add support for FriendlyARM NanoPi R4S

[Tianling Shen]

This adds support for the NanoPi R4S from FriendlyArm.

Rockchip RK3399 SoC
1GB DDR3 or 4GB LPDDR4 RAM
Gigabit Ethernet (WAN)
Gigabit Ethernet (PCIe) (LAN)
USB 3.0 Port x 2
MicroSD slot
Reset button
WAN - LAN - SYS LED

[initial DTS file]
Co-developed-by: Jensen Huang <jensenhuang at friendlyarm.com>
Signed-off-by: Jensen Huang <jensenhuang at friendlyarm.com>
[minor adjustments]
Co-developed-by: Marty Jones <mj8263788 at gmail.com>
Signed-off-by: Marty Jones <mj8263788 at gmail.com>
[further adjustments, fixed format issues]
Signed-off-by: Tianling Shen <cnsztl at gmail.com>
---
 arch/arm64/boot/dts/rockchip/Makefile         |   1 +
 .../boot/dts/rockchip/rk3399-nanopi-r4s.dts   | 133 ++++++++++++++++++
 2 files changed, 134 insertions(+)
 create mode 100644 arch/arm64/boot/dts/rockchip/rk3399-nanopi-r4s.dts

diff --git a/arch/arm64/boot/dts/rockchip/Makefile b/arch/arm64/boot/dts/rockchip/Makefile
index 62d3abc17a24..c3e00c0e2db7 100644
--- a/arch/arm64/boot/dts/rockchip/Makefile
+++ b/arch/arm64/boot/dts/rockchip/Makefile
@@ -36,6 +36,7 @@ dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3399-nanopc-t4.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3399-nanopi-m4.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3399-nanopi-m4b.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3399-nanopi-neo4.dtb
+dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3399-nanopi-r4s.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3399-orangepi.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3399-pinebook-pro.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3399-puma-haikou.dtb
diff --git a/arch/arm64/boot/dts/rockchip/rk3399-nanopi-r4s.dts b/arch/arm64/boot/dts/rockchip/rk3399-nanopi-r4s.dts
new file mode 100644
index 000000000000..fa5809887643
--- /dev/null
+++ b/arch/arm64/boot/dts/rockchip/rk3399-nanopi-r4s.dts
@@ -0,0 +1,133 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * FriendlyElec NanoPC-T4 board device tree source
+ *
+ * Copyright (c) 2020 FriendlyElec Computer Tech. Co., Ltd.
+ * (http://www.friendlyarm.com)
+ *
+ * Copyright (c) 2018 Collabora Ltd.
+ *
+ * Copyright (c) 2020 Jensen Huang <jensenhuang at friendlyarm.com>
+ * Copyright (c) 2020 Marty Jones <mj8263788 at gmail.com>
+ * Copyright (c) 2021 Tianling Shen <cnsztl at gmail.com>
+ */
+
+/dts-v1/;
+#include "rk3399-nanopi4.dtsi"
+
+/ {
+	model = "FriendlyElec NanoPi R4S";
+	compatible = "friendlyarm,nanopi-r4s", "rockchip,rk3399";
+
+	/delete-node/ display-subsystem;
+
+	gpio-leds {
+		pinctrl-0 = <&lan_led_pin>, <&sys_led_pin>, <&wan_led_pin>;
+
+		/delete-node/ led-0;
+
+		lan_led: led-lan {
+			gpios = <&gpio1 RK_PA1 GPIO_ACTIVE_HIGH>;
+			label = "green:lan";
+		};
+
+		sys_led: led-sys {
+			gpios = <&gpio0 RK_PB5 GPIO_ACTIVE_HIGH>;
+			label = "red:sys";
+			default-state = "on";
+		};
+
+		wan_led: led-wan {
+			gpios = <&gpio1 RK_PA0 GPIO_ACTIVE_HIGH>;
+			label = "green:wan";
+		};
+	};
+
+	gpio-keys {
+		pinctrl-0 = <&reset_button_pin>;
+
+		/delete-node/ power;
+
+		reset {
+			debounce-interval = <50>;
+			gpios = <&gpio1 RK_PC6 GPIO_ACTIVE_LOW>;
+			label = "reset";
+			linux,code = <KEY_RESTART>;
+		};
+	};
+
+	vdd_5v: vdd-5v {
+		compatible = "regulator-fixed";
+		regulator-name = "vdd_5v";
+		regulator-always-on;
+		regulator-boot-on;
+	};
+};
+
+&emmc_phy {
+	status = "disabled";
+};
+
+&i2c4 {
+	status = "disabled";
+};
+
+&pcie0 {
+	max-link-speed = <1>;
+	num-lanes = <1>;
+	vpcie3v3-supply = <&vcc3v3_sys>;
+};
+
+&pinctrl {
+	gpio-leds {
+		/delete-node/ status-led-pin;
+
+		lan_led_pin: lan-led-pin {
+			rockchip,pins = <1 RK_PA1 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+
+		sys_led_pin: sys-led-pin {
+			rockchip,pins = <0 RK_PB5 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+
+		wan_led_pin: wan-led-pin {
+			rockchip,pins = <1 RK_PA0 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+	};
+
+	rockchip-key {
+		/delete-node/ power-key;
+
+		reset_button_pin: reset-button-pin {
+			rockchip,pins = <1 RK_PC6 RK_FUNC_GPIO &pcfg_pull_up>;
+		};
+	};
+};
+
+&sdhci {
+	status = "disabled";
+};
+
+&sdio0 {
+	status = "disabled";
+};
+
+&u2phy0_host {
+	phy-supply = <&vdd_5v>;
+};
+
+&u2phy1_host {
+	status = "disabled";
+};
+
+&uart0 {
+	status = "disabled";
+};
+
+&usbdrd_dwc3_0 {
+	dr_mode = "host";
+};
+
+&vcc3v3_sys {
+	vin-supply = <&vcc5v0_sys>;
+};
-- 
2.17.1