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+From 749cbb7b1a4bc2244b6af8cd7d8b471d4e33c80f Mon Sep 17 00:00:00 2001
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+From: David Bauer <[email protected]>
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+Date: Fri, 10 Jul 2020 15:57:46 +0200
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+Subject: [PATCH] rockchip: rk3328: Add support for FriendlyARM NanoPi R2S
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+
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+This adds support for the NanoPi R2S from FriendlyARM.
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+
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+Rockchip RK3328 SoC
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+1GB DDR4 RAM
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+Gigabit Ethernet (WAN)
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+Gigabit Ethernet (USB3) (LAN)
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+USB 2.0 Host Port
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+MicroSD slot
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+Reset button
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+WAN - LAN - SYS LED
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+
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+Signed-off-by: David Bauer <[email protected]>
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+---
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+ arch/arm64/boot/dts/rockchip/Makefile | 1 +
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+ .../boot/dts/rockchip/rk3328-nanopi-r2s.dts | 334 ++++++++++++++++++
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+ 2 files changed, 335 insertions(+)
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+ create mode 100644 arch/arm64/boot/dts/rockchip/rk3328-nanopi-r2s.dts
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+
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+--- a/arch/arm64/boot/dts/rockchip/Makefile
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++++ b/arch/arm64/boot/dts/rockchip/Makefile
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+@@ -1,6 +1,7 @@
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+ # SPDX-License-Identifier: GPL-2.0
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+ dtb-$(CONFIG_ARCH_ROCKCHIP) += px30-evb.dtb
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+ dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3328-evb.dtb
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++dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3328-nanopi-r2s.dtb
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+ dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3328-rock64.dtb
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+ dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3328-roc-cc.dtb
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+ dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3368-evb-act8846.dtb
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+--- /dev/null
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++++ b/arch/arm64/boot/dts/rockchip/rk3328-nanopi-r2s.dts
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+@@ -0,0 +1,334 @@
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++// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
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++/*
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++ * Copyright (c) 2020 David Bauer <[email protected]>
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++ */
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++
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++/dts-v1/;
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++
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++#include <dt-bindings/input/input.h>
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++#include <dt-bindings/gpio/gpio.h>
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++#include "rk3328.dtsi"
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++
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++/ {
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++ model = "FriendlyARM NanoPi R2S";
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++ compatible = "friendlyarm,nanopi-r2s", "rockchip,rk3328";
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++
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++ chosen {
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++ stdout-path = "serial2:1500000n8";
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++ };
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++
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++ gmac_clkin: external-gmac-clock {
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++ compatible = "fixed-clock";
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++ clock-frequency = <125000000>;
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++ clock-output-names = "gmac_clkin";
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++ #clock-cells = <0>;
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++ };
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++
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++ vcc_sd: sdmmc-regulator {
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++ compatible = "regulator-fixed";
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++ gpio = <&gpio0 RK_PD6 GPIO_ACTIVE_LOW>;
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++ pinctrl-names = "default";
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++ pinctrl-0 = <&sdmmc0m1_gpio>;
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++ regulator-name = "vcc_sd";
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++ regulator-min-microvolt = <3300000>;
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++ regulator-max-microvolt = <3300000>;
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++ vin-supply = <&vcc_io>;
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++ };
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++
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++ vcc_sdio: sdmmcio-regulator {
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++ compatible = "regulator-gpio";
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++ gpios = <&gpio1 RK_PD4 GPIO_ACTIVE_HIGH>;
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++ enable-active-high;
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++ states = <1800000 0x1
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++ 3300000 0x0>;
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++ pinctrl-names = "default";
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++ pinctrl-0 = <&sdio_vcc_pin>;
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++ regulator-always-on;
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++ regulator-min-microvolt = <1800000>;
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++ regulator-max-microvolt = <3300000>;
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++ regulator-name = "vcc_sdio";
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++ regulator-settling-time-us = <5000>;
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++ regulator-type = "voltage";
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++ vin-supply = <&vcc_io>;
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++ };
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++
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++ vcc_sys: vcc-sys {
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++ compatible = "regulator-fixed";
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++ regulator-name = "vcc_sys";
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++ regulator-always-on;
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++ regulator-boot-on;
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++ regulator-min-microvolt = <5000000>;
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++ regulator-max-microvolt = <5000000>;
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++ };
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++
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++ leds {
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++ compatible = "gpio-leds";
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++
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++ pinctrl-names = "default";
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++ pinctrl-0 = <&led_pins>;
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++
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++ sys {
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++ gpios = <&gpio0 RK_PA2 GPIO_ACTIVE_HIGH>;
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++ label = "nanopi-r2s:red:sys";
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++ };
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++
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++ lan {
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++ gpios = <&gpio2 RK_PB7 GPIO_ACTIVE_HIGH>;
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++ label = "nanopi-r2s:green:lan";
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++ };
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++
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++ wan {
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++ gpios = <&gpio2 RK_PC2 GPIO_ACTIVE_HIGH>;
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++ label = "nanopi-r2s:green:wan";
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++ };
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++ };
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++
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++ gpio_keys {
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++ compatible = "gpio-keys-polled";
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++ poll-interval = <100>;
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++
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++ pinctrl-names = "default";
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++ pinctrl-0 = <&button_pins>;
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++
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++ reset {
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++ label = "Reset Button";
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++ gpios = <&gpio0 RK_PA0 GPIO_ACTIVE_LOW>;
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++ linux,code = <KEY_RESTART>;
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++ debounce-interval = <50>;
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++ };
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++ };
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++};
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++
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++&cpu0 {
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++ cpu-supply = <&vdd_arm>;
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++};
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++
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++&cpu1 {
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++ cpu-supply = <&vdd_arm>;
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++};
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++
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++&cpu2 {
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++ cpu-supply = <&vdd_arm>;
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++};
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++
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++&cpu3 {
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++ cpu-supply = <&vdd_arm>;
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++};
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++
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++&gmac2io {
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++ assigned-clocks = <&cru SCLK_MAC2IO>, <&cru SCLK_MAC2IO_EXT>;
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++ assigned-clock-parents = <&gmac_clkin>, <&gmac_clkin>;
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++ clock_in_out = "input";
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++ phy-supply = <&vcc_io>;
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++ phy-handle = <&rtl8211e>;
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++ phy-mode = "rgmii";
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++ pinctrl-names = "default";
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++ pinctrl-0 = <&rgmiim1_pins>;
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++ snps,aal;
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++ snps,reset-gpio = <&gpio1 RK_PC2 GPIO_ACTIVE_LOW>;
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++ snps,reset-active-low;
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++ snps,reset-delays-us = <0 10000 50000>;
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++ tx_delay = <0x24>;
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++ rx_delay = <0x18>;
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++ status = "okay";
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++
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++ mdio {
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++ compatible = "snps,dwmac-mdio";
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++ #address-cells = <1>;
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++ #size-cells = <0>;
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++
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++ rtl8211e: ethernet-phy@0 {
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++ reg = <0>;
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++ };
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++ };
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++};
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++
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++&i2c1 {
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++ status = "okay";
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++
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++ rk805: rk805@18 {
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++ compatible = "rockchip,rk805";
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++ reg = <0x18>;
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++ interrupt-parent = <&gpio2>;
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++ interrupts = <6 IRQ_TYPE_LEVEL_LOW>;
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++ #clock-cells = <1>;
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++ clock-output-names = "xin32k", "rk805-clkout2";
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++ gpio-controller;
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++ #gpio-cells = <2>;
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++ pinctrl-names = "default";
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++ pinctrl-0 = <&pmic_int_l>;
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++ rockchip,system-power-controller;
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++ wakeup-source;
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++
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++ vcc1-supply = <&vcc_sys>;
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++ vcc2-supply = <&vcc_sys>;
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++ vcc3-supply = <&vcc_sys>;
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++ vcc4-supply = <&vcc_sys>;
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++ vcc5-supply = <&vcc_io>;
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++ vcc6-supply = <&vcc_sys>;
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++
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++ regulators {
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++ vdd_logic: DCDC_REG1 {
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++ regulator-name = "vdd_logic";
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++ regulator-min-microvolt = <712500>;
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++ regulator-max-microvolt = <1450000>;
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++ regulator-ramp-delay = <12500>;
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++ regulator-always-on;
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++ regulator-boot-on;
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++ regulator-state-mem {
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++ regulator-on-in-suspend;
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++ regulator-suspend-microvolt = <1000000>;
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++ };
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++ };
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++
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++ vdd_arm: DCDC_REG2 {
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++ regulator-name = "vdd_arm";
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++ regulator-min-microvolt = <712500>;
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++ regulator-max-microvolt = <1450000>;
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++ regulator-ramp-delay = <12500>;
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++ regulator-always-on;
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++ regulator-boot-on;
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++ regulator-state-mem {
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++ regulator-on-in-suspend;
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++ regulator-suspend-microvolt = <950000>;
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++ };
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++ };
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++
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++ vcc_ddr: DCDC_REG3 {
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++ regulator-name = "vcc_ddr";
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++ regulator-always-on;
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++ regulator-boot-on;
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++ regulator-state-mem {
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++ regulator-on-in-suspend;
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++ };
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++ };
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++
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++ vcc_io: DCDC_REG4 {
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++ regulator-name = "vcc_io";
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++ regulator-min-microvolt = <3300000>;
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++ regulator-max-microvolt = <3300000>;
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++ regulator-always-on;
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++ regulator-boot-on;
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++ regulator-state-mem {
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++ regulator-on-in-suspend;
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++ regulator-suspend-microvolt = <3300000>;
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++ };
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++ };
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++
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++ vcc_18: LDO_REG1 {
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++ regulator-name = "vcc_18";
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++ regulator-min-microvolt = <1800000>;
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++ regulator-max-microvolt = <1800000>;
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++ regulator-always-on;
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++ regulator-boot-on;
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++ regulator-state-mem {
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++ regulator-on-in-suspend;
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++ regulator-suspend-microvolt = <1800000>;
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++ };
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++ };
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++
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++ vcc18_emmc: LDO_REG2 {
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++ regulator-name = "vcc18_emmc";
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++ regulator-min-microvolt = <1800000>;
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++ regulator-max-microvolt = <1800000>;
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++ regulator-always-on;
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++ regulator-boot-on;
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++ regulator-state-mem {
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++ regulator-on-in-suspend;
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++ regulator-suspend-microvolt = <1800000>;
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++ };
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++ };
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++
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++ vdd_10: LDO_REG3 {
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++ regulator-name = "vdd_10";
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++ regulator-min-microvolt = <1000000>;
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++ regulator-max-microvolt = <1000000>;
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++ regulator-always-on;
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++ regulator-boot-on;
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++ regulator-state-mem {
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++ regulator-on-in-suspend;
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++ regulator-suspend-microvolt = <1000000>;
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++ };
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++ };
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++ };
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++ };
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++};
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++
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++&io_domains {
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++ status = "okay";
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++
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++ vccio1-supply = <&vcc_io>;
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++ vccio2-supply = <&vcc18_emmc>;
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++ vccio3-supply = <&vcc_sdio>;
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++ vccio4-supply = <&vcc_18>;
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++ vccio5-supply = <&vcc_io>;
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++ vccio6-supply = <&vcc_io>;
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++ pmuio-supply = <&vcc_io>;
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++};
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++
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++&pinctrl {
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++ leds {
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++ led_pins: led-pins {
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++ rockchip,pins = <0 RK_PA2 RK_FUNC_GPIO &pcfg_pull_none>,
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++ <2 RK_PB7 RK_FUNC_GPIO &pcfg_pull_none>,
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++ <2 RK_PC2 RK_FUNC_GPIO &pcfg_pull_none>;
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++ };
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++ };
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++
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++ button {
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++ button_pins: button-pins {
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++ rockchip,pins = <0 RK_PA0 RK_FUNC_GPIO &pcfg_pull_none>;
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++ };
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++ };
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++
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++ pmic {
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++ pmic_int_l: pmic-int-l {
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++ rockchip,pins = <2 RK_PA6 RK_FUNC_GPIO &pcfg_pull_up>;
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++ };
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++ };
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++
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++ sd {
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++ sdio_vcc_pin: sdio-vcc-pin {
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++ rockchip,pins = <1 RK_PD4 RK_FUNC_GPIO &pcfg_pull_up>;
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++ };
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++ };
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++};
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++
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++&sdmmc {
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++ bus-width = <4>;
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++ cap-mmc-highspeed;
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++ cap-sd-highspeed;
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++ disable-wp;
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++ max-frequency = <150000000>;
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++ pinctrl-names = "default";
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++ pinctrl-0 = <&sdmmc0_clk &sdmmc0_cmd &sdmmc0_dectn &sdmmc0_bus4>;
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++ vmmc-supply = <&vcc_sd>;
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++ vqmmc-supply = <&vcc_sdio>;
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++ status = "okay";
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++};
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++
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++&tsadc {
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++ rockchip,hw-tshut-mode = <0>;
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++ rockchip,hw-tshut-polarity = <0>;
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++ status = "okay";
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++};
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++
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++&uart2 {
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++ status = "okay";
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++};
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++
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++&u2phy {
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++ status = "okay";
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++
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++ u2phy_host: host-port {
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++ status = "okay";
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++ };
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++};
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++
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++&usb_host0_ehci {
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++ status = "okay";
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++};
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++
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++&usb_host0_ohci {
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++ status = "okay";
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++};
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David Bauer