arm64: dts: rockchip: Add basic support for Kobol's Helios64

The hardware is described in detail on Kobol's wiki at
https://wiki.kobol.io/helios64/intro/.

Up to now the following peripherals are working:

 - UART
 - Micro-SD card
 - eMMC
 - ethernet port 1
 - status LED
 - temperature sensor on i2c bus 2
Signed-off-by: Uwe Kleine-König <uwe@kleine-koenig.org>
Link: https://lore.kernel.org/r/20201014200030.845759-3-uwe@kleine-koenig.orgSigned-off-by: Heiko Stuebner <heiko@sntech.de>

arch/arm64/boot/dts/rockchip/Makefile

@@ -26,6 +26,7 @@ dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3399-hugsun-x99.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3399-khadas-edge.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3399-khadas-edge-captain.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3399-khadas-edge-v.dtb
+dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3399-kobol-helios64.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3399-leez-p710.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3399-nanopc-t4.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3399-nanopi-m4.dtb

arch/arm64/boot/dts/rockchip/rk3399-kobol-helios64.dts

+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (c) 2020 Aditya Prayoga <aditya@kobol.io>
+ */
+
+/*
+ * The Kobol Helios64 is a board designed to operate as a NAS and optionally
+ * ships with an enclosing that can host five 2.5" hard disks.
+ *
+ * See https://wiki.kobol.io/helios64/intro/ for further details.
+ */
+
+/dts-v1/;
+#include "rk3399.dtsi"
+#include "rk3399-opp.dtsi"
+
+/ {
+	model = "Kobol Helios64";
+	compatible = "kobol,helios64", "rockchip,rk3399";
+
+	avdd_1v8_s0: avdd-1v8-s0 {
+		compatible = "regulator-fixed";
+		regulator-name = "avdd_1v8_s0";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+		vin-supply = <&vcc3v3_sys_s3>;
+	};
+
+	clkin_gmac: external-gmac-clock {
+		compatible = "fixed-clock";
+		clock-frequency = <125000000>;
+		clock-output-names = "clkin_gmac";
+		#clock-cells = <0>;
+	};
+
+	leds {
+		compatible = "gpio-leds";
+		pinctrl-names = "default";
+		pinctrl-0 = <&sys_grn_led_on &sys_red_led_on>;
+
+		led-0 {
+			label = "helios64:green:status";
+			gpios = <&gpio0 RK_PB4 GPIO_ACTIVE_HIGH>;
+			default-state = "on";
+		};
+
+		led-1 {
+			label = "helios64:red:fault";
+			gpios = <&gpio0 RK_PB5 GPIO_ACTIVE_HIGH>;
+			default-state = "keep";
+		};
+	};
+
+	vcc1v8_sys_s0: vcc1v8-sys-s0 {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc1v8_sys_s0";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+		vin-supply = <&vcc1v8_sys_s3>;
+	};
+
+	vcc3v0_sd: vcc3v0-sd {
+		compatible = "regulator-fixed";
+		enable-active-high;
+		gpio = <&gpio0 RK_PA1 GPIO_ACTIVE_HIGH>;
+		regulator-name = "vcc3v0_sd";
+		regulator-boot-on;
+		regulator-min-microvolt = <3000000>;
+		regulator-max-microvolt = <3000000>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&sdmmc0_pwr_h>;
+		vin-supply = <&vcc3v3_sys_s3>;
+	};
+
+	vcc3v3_sys_s3: vcc_lan: vcc3v3-sys-s3 {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc3v3_sys_s3";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		vin-supply = <&vcc5v0_sys>;
+
+		regulator-state-mem {
+			regulator-on-in-suspend;
+		};
+	};
+
+	vcc5v0_sys: vcc5v0-sys {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc5v0_sys";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		vin-supply = <&vcc12v_dcin_bkup>;
+
+		regulator-state-mem {
+			regulator-on-in-suspend;
+		};
+	};
+
+	vcc12v_dcin: vcc12v-dcin {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc12v_dcin";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <12000000>;
+		regulator-max-microvolt = <12000000>;
+	};
+
+	vcc12v_dcin_bkup: vcc12v-dcin-bkup {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc12v_dcin_bkup";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <12000000>;
+		regulator-max-microvolt = <12000000>;
+		vin-supply = <&vcc12v_dcin>;
+	};
+};
+
+/*
+ * The system doesn't run stable with cpu freq enabled, so disallow the lower
+ * frequencies until this problem is properly understood and resolved.
+ */
+&cluster0_opp {
+	/delete-node/ opp00;
+	/delete-node/ opp01;
+	/delete-node/ opp02;
+	/delete-node/ opp03;
+	/delete-node/ opp04;
+};
+
+&cluster1_opp {
+	/delete-node/ opp00;
+	/delete-node/ opp01;
+	/delete-node/ opp02;
+	/delete-node/ opp03;
+	/delete-node/ opp04;
+	/delete-node/ opp05;
+	/delete-node/ opp06;
+};
+
+&cpu_b0 {
+	cpu-supply = <&vdd_cpu_b>;
+};
+
+&cpu_b1 {
+	cpu-supply = <&vdd_cpu_b>;
+};
+
+&cpu_l0 {
+	cpu-supply = <&vdd_cpu_l>;
+};
+
+&cpu_l1 {
+	cpu-supply = <&vdd_cpu_l>;
+};
+
+&cpu_l2 {
+	cpu-supply = <&vdd_cpu_l>;
+};
+
+&cpu_l3 {
+	cpu-supply = <&vdd_cpu_l>;
+};
+
+&emmc_phy {
+	status = "okay";
+};
+
+&gmac {
+	assigned-clock-parents = <&clkin_gmac>;
+	assigned-clocks = <&cru SCLK_RMII_SRC>;
+	clock_in_out = "input";
+	phy-mode = "rgmii";
+	phy-supply = <&vcc_lan>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&rgmii_pins &gphy_reset>;
+	rx_delay = <0x20>;
+	tx_delay = <0x28>;
+	snps,reset-active-low;
+	snps,reset-delays-us = <0 10000 50000>;
+	snps,reset-gpio = <&gpio3 RK_PB7 GPIO_ACTIVE_LOW>;
+	status = "okay";
+};
+
+&i2c0 {
+	clock-frequency = <400000>;
+	i2c-scl-rising-time-ns = <168>;
+	i2c-scl-falling-time-ns = <4>;
+	status = "okay";
+
+	rk808: pmic@1b {
+		compatible = "rockchip,rk808";
+		reg = <0x1b>;
+		interrupt-parent = <&gpio0>;
+		interrupts = <10 IRQ_TYPE_LEVEL_LOW>;
+		clock-output-names = "xin32k", "rk808-clkout2";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pmic_int_l>;
+		vcc1-supply = <&vcc5v0_sys>;
+		vcc2-supply = <&vcc5v0_sys>;
+		vcc3-supply = <&vcc5v0_sys>;
+		vcc4-supply = <&vcc5v0_sys>;
+		vcc6-supply = <&vcc5v0_sys>;
+		vcc7-supply = <&vcc5v0_sys>;
+		vcc8-supply = <&vcc3v3_sys_s3>;
+		vcc9-supply = <&vcc5v0_sys>;
+		vcc10-supply = <&vcc5v0_sys>;
+		vcc11-supply = <&vcc5v0_sys>;
+		vcc12-supply = <&vcc3v3_sys_s3>;
+		vddio-supply = <&vcc3v0_s3>;
+		wakeup-source;
+		#clock-cells = <1>;
+
+		regulators {
+			vdd_cpu_l: DCDC_REG2 {
+				regulator-name = "vdd_cpu_l";
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-min-microvolt = <750000>;
+				regulator-max-microvolt = <1350000>;
+				regulator-ramp-delay = <6001>;
+
+				regulator-state-mem {
+					regulator-off-in-suspend;
+				};
+			};
+
+			vcc1v8_sys_s3: DCDC_REG4 {
+				regulator-name = "vcc1v8_sys_s3";
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+
+				regulator-state-mem {
+					regulator-on-in-suspend;
+					regulator-suspend-microvolt = <1800000>;
+				};
+			};
+
+			vcc_sdio_s0: LDO_REG4 {
+				regulator-name = "vcc_sdio_s0";
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <3000000>;
+
+				regulator-state-mem {
+					regulator-on-in-suspend;
+					regulator-suspend-microvolt = <3000000>;
+				};
+			};
+
+			vcc3v0_s3: LDO_REG8 {
+				regulator-name = "vcc3v0_s3";
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-min-microvolt = <3000000>;
+				regulator-max-microvolt = <3000000>;
+
+				regulator-state-mem {
+					regulator-on-in-suspend;
+					regulator-suspend-microvolt = <3000000>;
+				};
+			};
+		};
+	};
+
+	vdd_cpu_b: regulator@40 {
+		compatible = "silergy,syr827";
+		reg = <0x40>;
+		fcs,suspend-voltage-selector = <1>;
+		regulator-name = "vdd_cpu_b";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <712500>;
+		regulator-max-microvolt = <1500000>;
+		regulator-ramp-delay = <1000>;
+		vin-supply = <&vcc5v0_sys>;
+
+		regulator-state-mem {
+			regulator-off-in-suspend;
+		};
+	};
+};
+
+&i2c2 {
+	clock-frequency = <400000>;
+	i2c-scl-rising-time-ns = <160>;
+	i2c-scl-falling-time-ns = <30>;
+	status = "okay";
+
+	temp@4c {
+		compatible = "national,lm75";
+		reg = <0x4c>;
+	};
+};
+
+&io_domains {
+	audio-supply = <&vcc1v8_sys_s0>;
+	bt656-supply = <&vcc1v8_sys_s0>;
+	gpio1830-supply = <&vcc3v0_s3>;
+	sdmmc-supply = <&vcc_sdio_s0>;
+	status = "okay";
+};
+
+&pinctrl {
+	gmac {
+		gphy_reset: gphy-reset {
+			rockchip,pins = <3 RK_PB7 RK_FUNC_GPIO &pcfg_output_low>;
+		};
+	};
+
+	leds {
+		sys_grn_led_on: sys-grn-led-on {
+			rockchip,pins = <0 RK_PB4 RK_FUNC_GPIO &pcfg_pull_down>;
+		};
+
+		sys_red_led_on: sys-red-led-on {
+			rockchip,pins = <0 RK_PB5 RK_FUNC_GPIO &pcfg_pull_down>;
+		};
+	};
+
+	pmic {
+		pmic_int_l: pmic-int-l {
+			rockchip,pins = <0 RK_PB2 RK_FUNC_GPIO &pcfg_pull_up>;
+		};
+	};
+
+	vcc3v0-sd {
+		sdmmc0_pwr_h: sdmmc0-pwr-h {
+			rockchip,pins = <0 RK_PA1 RK_FUNC_GPIO &pcfg_pull_up>;
+		};
+	};
+};
+
+&pmu_io_domains {
+	pmu1830-supply = <&vcc3v0_s3>;
+	status = "okay";
+};
+
+&sdhci {
+	bus-width = <8>;
+	mmc-hs200-1_8v;
+	non-removable;
+	vqmmc-supply = <&vcc1v8_sys_s0>;
+	status = "okay";
+};
+
+&sdmmc {
+	bus-width = <4>;
+	cap-sd-highspeed;
+	cd-gpios = <&gpio0 RK_PA7 GPIO_ACTIVE_LOW>;
+	disable-wp;
+	pinctrl-names = "default";
+	pinctrl-0 = <&sdmmc_clk &sdmmc_cmd &sdmmc_cd &sdmmc_bus4>;
+	vmmc-supply = <&vcc3v0_sd>;
+	vqmmc-supply = <&vcc_sdio_s0>;
+	status = "okay";
+};
+
+&uart2 {
+	status = "okay";
+};