text: /*
   * Copyright (c) 2017 Fuzhou Rockchip Electronics Co., Ltd.
   *
   * SPDX-License-Identifier:     GPL-2.0+
   */
  
  /dts-v1/;
  #include <dt-bindings/pwm/pwm.h>
  #include <dt-bindings/pinctrl/rockchip.h>
  #include "rk3399.dtsi"
  #include "rk3399-sdram-ddr3-1333.dtsi"
  
  / {
  	model = "Firefly-RK3399 Board";
  	compatible = "firefly,firefly-rk3399", "rockchip,rk3399";
  
  	chosen {
  		stdout-path = &uart2;
  	};
  
  	backlight: backlight {
  		compatible = "pwm-backlight";
  		enable-gpios = <&gpio1 RK_PB5 GPIO_ACTIVE_HIGH>;
  		pwms = <&pwm0 0 25000 0>;
  		brightness-levels = <
  			  0   1   2   3   4   5   6   7
  			  8   9  10  11  12  13  14  15
  			 16  17  18  19  20  21  22  23
  			 24  25  26  27  28  29  30  31
  			 32  33  34  35  36  37  38  39
  			 40  41  42  43  44  45  46  47
  			 48  49  50  51  52  53  54  55
  			 56  57  58  59  60  61  62  63
  			 64  65  66  67  68  69  70  71
  			 72  73  74  75  76  77  78  79
  			 80  81  82  83  84  85  86  87
  			 88  89  90  91  92  93  94  95
  			 96  97  98  99 100 101 102 103
  			104 105 106 107 108 109 110 111
  			112 113 114 115 116 117 118 119
  			120 121 122 123 124 125 126 127
  			128 129 130 131 132 133 134 135
  			136 137 138 139 140 141 142 143
  			144 145 146 147 148 149 150 151
  			152 153 154 155 156 157 158 159
  			160 161 162 163 164 165 166 167
  			168 169 170 171 172 173 174 175
  			176 177 178 179 180 181 182 183
  			184 185 186 187 188 189 190 191
  			192 193 194 195 196 197 198 199
  			200 201 202 203 204 205 206 207
  			208 209 210 211 212 213 214 215
  			216 217 218 219 220 221 222 223
  			224 225 226 227 228 229 230 231
  			232 233 234 235 236 237 238 239
  			240 241 242 243 244 245 246 247
  			248 249 250 251 252 253 254 255>;
  		default-brightness-level = <200>;
  	};
  
  	clkin_gmac: external-gmac-clock {
  		compatible = "fixed-clock";
  		clock-frequency = <125000000>;
  		clock-output-names = "clkin_gmac";
  		#clock-cells = <0>;
  	};
  
  	rt5640-sound {
  		compatible = "simple-audio-card";
  		simple-audio-card,name = "rockchip,rt5640-codec";
  		simple-audio-card,format = "i2s";
  		simple-audio-card,mclk-fs = <256>;
  		simple-audio-card,widgets =
  			"Microphone", "Mic Jack",
  			"Headphone", "Headphone Jack";
  		simple-audio-card,routing =
  			"Mic Jack", "MICBIAS1",
  			"IN1P", "Mic Jack",
  			"Headphone Jack", "HPOL",
  			"Headphone Jack", "HPOR";
  
  		simple-audio-card,cpu {
  			sound-dai = <&i2s1>;
  		};
  
  		simple-audio-card,codec {
  			sound-dai = <&rt5640>;
  		};
  	};
  
  	sdio_pwrseq: sdio-pwrseq {
  		compatible = "mmc-pwrseq-simple";
  		clocks = <&rk808 1>;
  		clock-names = "ext_clock";
  		pinctrl-names = "default";
  		pinctrl-0 = <&wifi_enable_h>;
  
  		/*
  		 * On the module itself this is one of these (depending
  		 * on the actual card populated):
  		 * - SDIO_RESET_L_WL_REG_ON
  		 * - PDN (power down when low)
  		 */
  		reset-gpios = <&gpio0 RK_PB2 GPIO_ACTIVE_LOW>;
  	};
  
  	vcc3v3_pcie: vcc3v3-pcie-regulator {
  		compatible = "regulator-fixed";
  		enable-active-high;
  		gpio = <&gpio1 RK_PC1 GPIO_ACTIVE_HIGH>;
  		pinctrl-names = "default";
  		pinctrl-0 = <&pcie_drv>;
  		regulator-name = "vcc3v3_pcie";
  		regulator-always-on;
  		regulator-boot-on;
  	};
  
  	vcc3v3_sys: vcc3v3-sys {
  		compatible = "regulator-fixed";
  		regulator-name = "vcc3v3_sys";
  		regulator-always-on;
  		regulator-boot-on;
  		regulator-min-microvolt = <3300000>;
  		regulator-max-microvolt = <3300000>;
  	};
  
  	vcc5v0_host: vcc5v0-host-regulator {
  		compatible = "regulator-fixed";
  		enable-active-high;
  		gpio = <&gpio1 RK_PA0 GPIO_ACTIVE_HIGH>;
  		pinctrl-names = "default";
  		pinctrl-0 = <&host_vbus_drv>;
  		regulator-name = "vcc5v0_host";
  		regulator-always-on;
  	};
  
  	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>;
  	};
  
  	vcc_phy: vcc-phy-regulator {
  		compatible = "regulator-fixed";
  		regulator-name = "vcc_phy";
  		regulator-always-on;
  		regulator-boot-on;
  	};
  
  	vdd_log: vdd-log {
  		compatible = "pwm-regulator";
  		pwms = <&pwm2 0 25000 1>;
  		regulator-name = "vdd_log";
  		regulator-always-on;
  		regulator-boot-on;
  		regulator-min-microvolt = <800000>;
  		regulator-max-microvolt = <1400000>;
  	};
  
  	vccadc_ref: vccadc-ref {
  		compatible = "regulator-fixed";
  		regulator-name = "vcc1v8_sys";
  		regulator-always-on;
  		regulator-boot-on;
  		regulator-min-microvolt = <1800000>;
  		regulator-max-microvolt = <1800000>;
  	};
  };
  
  &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>;
  };
  
  &cpu_b0 {
  	cpu-supply = <&vdd_cpu_b>;
  };
  
  &cpu_b1 {
  	cpu-supply = <&vdd_cpu_b>;
  };
  
  &emmc_phy {
  	status = "okay";
  };
  
  &gmac {
  	assigned-clocks = <&cru SCLK_RMII_SRC>;
  	assigned-clock-parents = <&clkin_gmac>;
  	clock_in_out = "input";
  	phy-supply = <&vcc_phy>;
  	phy-mode = "rgmii";
  	pinctrl-names = "default";
  	pinctrl-0 = <&rgmii_pins>;
  	snps,reset-gpio = <&gpio3 RK_PB7 GPIO_ACTIVE_LOW>;
  	snps,reset-active-low;
  	snps,reset-delays-us = <0 10000 50000>;
  	tx_delay = <0x28>;
  	rx_delay = <0x11>;
  	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 = <&gpio1>;
  		interrupts = <21 IRQ_TYPE_LEVEL_LOW>;
  		#clock-cells = <1>;
  		clock-output-names = "xin32k", "rk808-clkout2";
  		pinctrl-names = "default";
  		pinctrl-0 = <&pmic_int_l>;
  		rockchip,system-power-controller;
  		wakeup-source;
  
  		vcc1-supply = <&vcc3v3_sys>;
  		vcc2-supply = <&vcc3v3_sys>;
  		vcc3-supply = <&vcc3v3_sys>;
  		vcc4-supply = <&vcc3v3_sys>;
  		vcc6-supply = <&vcc3v3_sys>;
  		vcc7-supply = <&vcc3v3_sys>;
  		vcc8-supply = <&vcc3v3_sys>;
  		vcc9-supply = <&vcc3v3_sys>;
  		vcc10-supply = <&vcc3v3_sys>;
  		vcc11-supply = <&vcc3v3_sys>;
  		vcc12-supply = <&vcc3v3_sys>;
  		vddio-supply = <&vcc1v8_pmu>;
  
  		regulators {
  			vdd_center: DCDC_REG1 {
  				regulator-name = "vdd_center";
  				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;
  				};
  			};
  
  			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;
  				};
  			};
  
  			vcc_ddr: DCDC_REG3 {
  				regulator-name = "vcc_ddr";
  				regulator-always-on;
  				regulator-boot-on;
  				regulator-state-mem {
  					regulator-on-in-suspend;
  				};
  			};
  
  			vcc_1v8: DCDC_REG4 {
  				regulator-name = "vcc_1v8";
  				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>;
  				};
  			};
  
  			vcc1v8_dvp: LDO_REG1 {
  				regulator-name = "vcc1v8_dvp";
  				regulator-always-on;
  				regulator-boot-on;
  				regulator-min-microvolt = <1800000>;
  				regulator-max-microvolt = <1800000>;
  				regulator-state-mem {
  					regulator-off-in-suspend;
  				};
  			};
  
  			vcc3v0_tp: LDO_REG2 {
  				regulator-name = "vcc3v0_tp";
  				regulator-always-on;
  				regulator-boot-on;
  				regulator-min-microvolt = <3000000>;
  				regulator-max-microvolt = <3000000>;
  				regulator-state-mem {
  					regulator-off-in-suspend;
  				};
  			};
  
  			vcc1v8_pmu: LDO_REG3 {
  				regulator-name = "vcc1v8_pmu";
  				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_sd: LDO_REG4 {
  				regulator-name = "vcc_sd";
  				regulator-always-on;
  				regulator-boot-on;
  				regulator-min-microvolt = <1800000>;
  				regulator-max-microvolt = <3300000>;
  				regulator-state-mem {
  					regulator-on-in-suspend;
  					regulator-suspend-microvolt = <3300000>;
  				};
  			};
  
  			vcca3v0_codec: LDO_REG5 {
  				regulator-name = "vcca3v0_codec";
  				regulator-always-on;
  				regulator-boot-on;
  				regulator-min-microvolt = <3000000>;
  				regulator-max-microvolt = <3000000>;
  				regulator-state-mem {
  					regulator-off-in-suspend;
  				};
  			};
  
  			vcc_1v5: LDO_REG6 {
  				regulator-name = "vcc_1v5";
  				regulator-always-on;
  				regulator-boot-on;
  				regulator-min-microvolt = <1500000>;
  				regulator-max-microvolt = <1500000>;
  				regulator-state-mem {
  					regulator-on-in-suspend;
  					regulator-suspend-microvolt = <1500000>;
  				};
  			};
  
  			vcca1v8_codec: LDO_REG7 {
  				regulator-name = "vcca1v8_codec";
  				regulator-always-on;
  				regulator-boot-on;
  				regulator-min-microvolt = <1800000>;
  				regulator-max-microvolt = <1800000>;
  				regulator-state-mem {
  					regulator-off-in-suspend;
  				};
  			};
  
  			vcc_3v0: LDO_REG8 {
  				regulator-name = "vcc_3v0";
  				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>;
  				};
  			};
  
  			vcc3v3_s3: SWITCH_REG1 {
  				regulator-name = "vcc3v3_s3";
  				regulator-always-on;
  				regulator-boot-on;
  				regulator-state-mem {
  					regulator-off-in-suspend;
  				};
  			};
  
  			vcc3v3_s0: SWITCH_REG2 {
  				regulator-name = "vcc3v3_s0";
  				regulator-always-on;
  				regulator-boot-on;
  				regulator-state-mem {
  					regulator-off-in-suspend;
  				};
  			};
  		};
  	};
  
  	vdd_cpu_b: regulator@40 {
  		compatible = "silergy,syr827";
  		reg = <0x40>;
  		fcs,suspend-voltage-selector = <0>;
  		regulator-name = "vdd_cpu_b";
  		regulator-min-microvolt = <712500>;
  		regulator-max-microvolt = <1500000>;
  		regulator-ramp-delay = <1000>;
  		regulator-always-on;
  		regulator-boot-on;
  		vin-supply = <&vcc5v0_sys>;
  
  		regulator-state-mem {
  			regulator-off-in-suspend;
  		};
  	};
  
  	vdd_gpu: regulator@41 {
  		compatible = "silergy,syr828";
  		reg = <0x41>;
  		fcs,suspend-voltage-selector = <1>;
  		regulator-name = "vdd_gpu";
  		regulator-min-microvolt = <712500>;
  		regulator-max-microvolt = <1500000>;
  		regulator-ramp-delay = <1000>;
  		regulator-always-on;
  		regulator-boot-on;
  		vin-supply = <&vcc5v0_sys>;
  
  		regulator-state-mem {
  			regulator-off-in-suspend;
  		};
  	};
  };
  
  &i2c1 {
  	i2c-scl-rising-time-ns = <300>;
  	i2c-scl-falling-time-ns = <15>;
  	status = "okay";
  
  	rt5640: rt5640@1c {
  		compatible = "realtek,rt5640";
  		reg = <0x1c>;
  		clocks = <&cru SCLK_I2S_8CH_OUT>;
  		clock-names = "mclk";
  		realtek,in1-differential;
  		#sound-dai-cells = <0>;
  		pinctrl-names = "default";
  		pinctrl-0 = <&rt5640_hpcon>;
  	};
  };
  
  &i2c3 {
  	i2c-scl-rising-time-ns = <450>;
  	i2c-scl-falling-time-ns = <15>;
  	status = "okay";
  };
  
  &i2c4 {
  	i2c-scl-rising-time-ns = <600>;
  	i2c-scl-falling-time-ns = <20>;
  	status = "okay";
  
  	accelerometer@68 {
  		compatible = "invensense,mpu6500";
  		reg = <0x68>;
  		interrupt-parent = <&gpio1>;
  		interrupts = <RK_PC6 IRQ_TYPE_EDGE_RISING>;
  	};
  };
  
  &i2s0 {
  	rockchip,playback-channels = <8>;
  	rockchip,capture-channels = <8>;
  	#sound-dai-cells = <0>;
  	status = "okay";
  };
  
  &i2s1 {
  	rockchip,playback-channels = <2>;
  	rockchip,capture-channels = <2>;
  	#sound-dai-cells = <0>;
  	status = "okay";
  };
  
  &i2s2 {
  	#sound-dai-cells = <0>;
  	status = "okay";
  };
  
  &io_domains {
  	status = "okay";
  
  	bt656-supply = <&vcc1v8_dvp>;
  	audio-supply = <&vcca1v8_codec>;
  	sdmmc-supply = <&vcc_sd>;
  	gpio1830-supply = <&vcc_3v0>;
  };
  
  &pcie_phy {
  	status = "okay";
  };
  
  &pcie0 {
  	ep-gpios = <&gpio4 RK_PD1 GPIO_ACTIVE_HIGH>;
  	num-lanes = <4>;
  	pinctrl-names = "default";
  	pinctrl-0 = <&pcie_clkreqn>;
  	status = "okay";
  };
  
  &pmu_io_domains {
  	pmu1830-supply = <&vcc_3v0>;
  	status = "okay";
  };
  
  &pinctrl {
  	buttons {
  		pwrbtn: pwrbtn {
  			rockchip,pins = <0 RK_PA5 RK_FUNC_GPIO &pcfg_pull_up>;
  		};
  	};
  
  	lcd-panel {
  		lcd_panel_reset: lcd-panel-reset {
  			rockchip,pins = <4 RK_PD6 RK_FUNC_GPIO &pcfg_pull_up>;
  		};
  	};
  
  	pcie {
  		pcie_drv: pcie-drv {
  			rockchip,pins = <1 RK_PC1 RK_FUNC_GPIO &pcfg_pull_none>;
  		};
  
  		pcie_3g_drv: pcie-3g-drv {
  			rockchip,pins = <0 RK_PA2 RK_FUNC_GPIO &pcfg_pull_up>;
  		};
  	};
  
  	pmic {
  		vsel1_gpio: vsel1-gpio {
  			rockchip,pins = <1 RK_PC2 RK_FUNC_GPIO &pcfg_pull_down>;
  		};
  
  		vsel2_gpio: vsel2-gpio {
  			rockchip,pins = <1 RK_PB6 RK_FUNC_GPIO &pcfg_pull_down>;
  		};
  	};
  
  	sdio-pwrseq {
  		wifi_enable_h: wifi-enable-h {
  			rockchip,pins = <0 RK_PB2 RK_FUNC_GPIO &pcfg_pull_none>;
  		};
  	};
  
  	rt5640 {
  		rt5640_hpcon: rt5640-hpcon {
  			rockchip,pins = <4 RK_PC5 RK_FUNC_GPIO &pcfg_pull_none>;
  		};
  	};
  
  	pmic {
  		pmic_int_l: pmic-int-l {
  			rockchip,pins = <1 RK_PC5 RK_FUNC_GPIO &pcfg_pull_up>;
  		};
  	};
  
  	usb2 {
  		host_vbus_drv: host-vbus-drv {
  			rockchip,pins = <1 RK_PA0 RK_FUNC_GPIO &pcfg_pull_none>;
  		};
  	};
  };
  
  &pwm0 {
  	status = "okay";
  };
  
  &pwm2 {
  	status = "okay";
  };
  
  &saradc {
  	vref-supply = <&vccadc_ref>;
  	status = "okay";
  };
  
  &sdhci {
  	bus-width = <8>;
  	keep-power-in-suspend;
  	mmc-hs400-1_8v;
  	mmc-hs400-enhanced-strobe;
  	non-removable;
  	status = "okay";
  };
  
  &tsadc {
  	/* tshut mode 0:CRU 1:GPIO */
  	rockchip,hw-tshut-mode = <1>;
  	/* tshut polarity 0:LOW 1:HIGH */
  	rockchip,hw-tshut-polarity = <1>;
  	status = "okay";
  };
  
  &u2phy0 {
  	status = "okay";
  
  	u2phy0_otg: otg-port {
  		status = "okay";
  	};
  
  	u2phy0_host: host-port {
  		phy-supply = <&vcc5v0_host>;
  		status = "okay";
  	};
  };
  
  &u2phy1 {
  	status = "okay";
  
  	u2phy1_otg: otg-port {
  		status = "okay";
  	};
  
  	u2phy1_host: host-port {
  		phy-supply = <&vcc5v0_host>;
  		status = "okay";
  	};
  };
  
  &uart0 {
  	pinctrl-names = "default";
  	pinctrl-0 = <&uart0_xfer &uart0_cts>;
  	status = "okay";
  };
  
  &uart2 {
  	status = "okay";
  };
  
  &usb_host0_ehci {
  	status = "okay";
  };
  
  &usb_host0_ohci {
  	status = "okay";
  };
  
  &usb_host1_ehci {
  	status = "okay";
  };
  
  &usb_host1_ohci {
  	status = "okay";
  };
  