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      1 // SPDX-License-Identifier: GPL-2.0
      2 /dts-v1/;
      3 
      4 #include "jz4725b.dtsi"
      5 
      6 #include <dt-bindings/gpio/gpio.h>
      7 #include <dt-bindings/iio/adc/ingenic,adc.h>
      8 #include <dt-bindings/input/linux-event-codes.h>
      9 
     10 / {
     11 	compatible = "ylm,rs90", "ingenic,jz4725b";
     12 	model = "RS-90";
     13 
     14 	memory {
     15 		device_type = "memory";
     16 		reg = <0x0 0x2000000>;
     17 	};
     18 
     19 	reserved-memory {
     20 		#address-cells = <1>;
     21 		#size-cells = <1>;
     22 		ranges;
     23 
     24 		vmem: video-memory@1f00000 {
     25 			compatible = "shared-dma-pool";
     26 			reg = <0x1f00000 0x100000>;
     27 			reusable;
     28 		};
     29 	};
     30 
     31 	vcc: regulator {
     32 		compatible = "regulator-fixed";
     33 
     34 		regulator-name = "vcc";
     35 		regulaor-min-microvolt = <3300000>;
     36 		regulaor-max-microvolt = <3300000>;
     37 		regulator-always-on;
     38 	};
     39 
     40 	backlight: backlight {
     41 		compatible = "pwm-backlight";
     42 		pwms = <&pwm 3 40000 0>;
     43 
     44 		brightness-levels = <0 16 32 48 64 80 112 144 192 255>;
     45 		default-brightness-level = <8>;
     46 
     47 		pinctrl-names = "default";
     48 		pinctrl-0 = <&pins_pwm3>;
     49 
     50 		power-supply = <&vcc>;
     51 	};
     52 
     53 	keys@0 {
     54 		compatible = "gpio-keys";
     55 		#address-cells = <1>;
     56 		#size-cells = <0>;
     57 
     58 		key@0 {
     59 			label = "D-pad up";
     60 			linux,code = <KEY_UP>;
     61 			gpios = <&gpc 10 GPIO_ACTIVE_LOW>;
     62 		};
     63 
     64 		key@1 {
     65 			label = "D-pad down";
     66 			linux,code = <KEY_DOWN>;
     67 			gpios = <&gpc 11 GPIO_ACTIVE_LOW>;
     68 		};
     69 
     70 		key@2 {
     71 			label = "D-pad left";
     72 			linux,code = <KEY_LEFT>;
     73 			gpios = <&gpb 31 GPIO_ACTIVE_LOW>;
     74 		};
     75 
     76 		key@3 {
     77 			label = "D-pad right";
     78 			linux,code = <KEY_RIGHT>;
     79 			gpios = <&gpd 21 GPIO_ACTIVE_LOW>;
     80 		};
     81 
     82 		key@4 {
     83 			label = "Button A";
     84 			linux,code = <KEY_LEFTCTRL>;
     85 			gpios = <&gpc 31 GPIO_ACTIVE_LOW>;
     86 		};
     87 
     88 		key@5 {
     89 			label = "Button B";
     90 			linux,code = <KEY_LEFTALT>;
     91 			gpios = <&gpc 30 GPIO_ACTIVE_LOW>;
     92 		};
     93 
     94 		key@6 {
     95 			label = "Right shoulder button";
     96 			linux,code = <KEY_BACKSPACE>;
     97 			gpios = <&gpc 12 GPIO_ACTIVE_LOW>;
     98 			debounce-interval = <10>;
     99 		};
    100 
    101 		key@7 {
    102 			label = "Start button";
    103 			linux,code = <KEY_ENTER>;
    104 			gpios = <&gpd 17 GPIO_ACTIVE_LOW>;
    105 		};
    106 	};
    107 
    108 	keys@1 {
    109 		compatible = "adc-keys";
    110 		io-channels = <&adc INGENIC_ADC_AUX>;
    111 		io-channel-names = "buttons";
    112 		keyup-threshold-microvolt = <1400000>;
    113 		poll-interval = <30>;
    114 
    115 		key@0 {
    116 			label = "Left shoulder button";
    117 			linux,code = <KEY_TAB>;
    118 			press-threshold-microvolt = <800000>;
    119 		};
    120 
    121 		key@1 {
    122 			label = "Select button";
    123 			linux,code = <KEY_ESC>;
    124 			press-threshold-microvolt = <1100000>;
    125 		};
    126 	};
    127 
    128 	amp: analog-amplifier {
    129 		compatible = "simple-audio-amplifier";
    130 		enable-gpios = <&gpc 15 GPIO_ACTIVE_HIGH>;
    131 
    132 		VCC-supply = <&vcc>;
    133 	};
    134 
    135 	sound {
    136 		compatible = "simple-audio-card";
    137 
    138 		simple-audio-card,name = "rs90-audio";
    139 		simple-audio-card,format = "i2s";
    140 
    141 		simple-audio-card,widgets =
    142 			"Speaker", "Speaker",
    143 			"Headphone", "Headphones";
    144 		simple-audio-card,routing =
    145 			"INL", "LHPOUT",
    146 			"INR", "RHPOUT",
    147 			"Headphones", "LHPOUT",
    148 			"Headphones", "RHPOUT",
    149 			"Speaker", "OUTL",
    150 			"Speaker", "OUTR";
    151 		simple-audio-card,pin-switches = "Speaker";
    152 
    153 		simple-audio-card,hp-det-gpio = <&gpd 16 GPIO_ACTIVE_LOW>;
    154 		simple-audio-card,aux-devs = <&amp>;
    155 
    156 		simple-audio-card,bitclock-master = <&dai_codec>;
    157 		simple-audio-card,frame-master = <&dai_codec>;
    158 
    159 		dai_cpu: simple-audio-card,cpu {
    160 			sound-dai = <&aic>;
    161 		};
    162 
    163 		dai_codec: simple-audio-card,codec {
    164 			sound-dai = <&codec>;
    165 		};
    166 
    167 	};
    168 
    169 	usb_phy: usb-phy {
    170 		compatible = "usb-nop-xceiv";
    171 		#phy-cells = <0>;
    172 
    173 		clocks = <&cgu JZ4725B_CLK_UDC_PHY>;
    174 		clock-names = "main_clk";
    175 		vcc-supply = <&vcc>;
    176 	};
    177 
    178 	panel {
    179 		compatible = "sharp,ls020b1dd01d";
    180 
    181 		backlight = <&backlight>;
    182 		power-supply = <&vcc>;
    183 
    184 		port {
    185 			panel_input: endpoint {
    186 				remote-endpoint = <&panel_output>;
    187 			};
    188 		};
    189 	};
    190 };
    191 
    192 &ext {
    193 	clock-frequency = <12000000>;
    194 };
    195 
    196 &rtc_dev {
    197 	system-power-controller;
    198 };
    199 
    200 &udc {
    201 	phys = <&usb_phy>;
    202 };
    203 
    204 &pinctrl {
    205 	pins_mmc1: mmc1 {
    206 		function = "mmc1";
    207 		groups = "mmc1-1bit";
    208 	};
    209 
    210 	pins_nemc: nemc {
    211 		function = "nand";
    212 		groups = "nand-cs1", "nand-cle-ale", "nand-fre-fwe";
    213 	};
    214 
    215 	pins_pwm3: pwm3 {
    216 		function = "pwm3";
    217 		groups = "pwm3";
    218 		bias-disable;
    219 	};
    220 
    221 	pins_lcd: lcd {
    222 		function = "lcd";
    223 		groups = "lcd-8bit", "lcd-16bit", "lcd-special";
    224 	};
    225 };
    226 
    227 &mmc0 {
    228 	status = "disabled";
    229 };
    230 
    231 &mmc1 {
    232 	bus-width = <1>;
    233 	max-frequency = <48000000>;
    234 
    235 	pinctrl-names = "default";
    236 	pinctrl-0 = <&pins_mmc1>;
    237 
    238 	cd-gpios = <&gpc 20 GPIO_ACTIVE_LOW>;
    239 };
    240 
    241 &uart {
    242 	/*
    243 	 * The pins for RX/TX are used for the right shoulder button and
    244 	 * backlight PWM.
    245 	 */
    246 	status = "disabled";
    247 };
    248 
    249 &nemc {
    250 	nandc: nand-controller@1 {
    251 		compatible = "ingenic,jz4725b-nand";
    252 		reg = <1 0 0x4000000>;
    253 
    254 		#address-cells = <1>;
    255 		#size-cells = <0>;
    256 
    257 		ecc-engine = <&bch>;
    258 
    259 		ingenic,nemc-tAS = <10>;
    260 		ingenic,nemc-tAH = <5>;
    261 		ingenic,nemc-tBP = <10>;
    262 		ingenic,nemc-tAW = <15>;
    263 		ingenic,nemc-tSTRV = <100>;
    264 
    265 		pinctrl-names = "default";
    266 		pinctrl-0 = <&pins_nemc>;
    267 
    268 		rb-gpios = <&gpc 27 GPIO_ACTIVE_HIGH>;
    269 
    270 		nand@1 {
    271 			reg = <1>;
    272 
    273 			nand-ecc-step-size = <512>;
    274 			nand-ecc-strength = <8>;
    275 			nand-ecc-mode = "hw";
    276 			nand-is-boot-medium;
    277 			nand-on-flash-bbt;
    278 
    279 			partitions {
    280 				compatible = "fixed-partitions";
    281 				#address-cells = <1>;
    282 				#size-cells = <1>;
    283 
    284 				partition@0 {
    285 					label = "bootloader";
    286 					reg = <0x0 0x20000>;
    287 				};
    288 
    289 				partition@20000 {
    290 					label = "system";
    291 					reg = <0x20000 0x0>;
    292 				};
    293 			};
    294 		};
    295 	};
    296 };
    297 
    298 &cgu {
    299 	/* Use 32kHz oscillator as the parent of the RTC clock */
    300 	assigned-clocks = <&cgu JZ4725B_CLK_RTC>;
    301 	assigned-clock-parents = <&cgu JZ4725B_CLK_OSC32K>;
    302 };
    303 
    304 &tcu {
    305 	/*
    306 	 * 750 kHz for the system timer and clocksource, and use RTC as the
    307 	 * parent for the watchdog clock.
    308 	 */
    309 	assigned-clocks = <&tcu TCU_CLK_TIMER0>, <&tcu TCU_CLK_TIMER1>, <&tcu TCU_CLK_WDT>;
    310 	assigned-clock-parents = <0>, <0>, <&cgu JZ4725B_CLK_RTC>;
    311 	assigned-clock-rates = <750000>, <750000>;
    312 };
    313 
    314 &lcd {
    315 	memory-region = <&vmem>;
    316 
    317 	pinctrl-names = "default";
    318 	pinctrl-0 = <&pins_lcd>;
    319 };
    320 
    321 &lcd_ports {
    322 	port@0 {
    323 		reg = <0>;
    324 
    325 		panel_output: endpoint {
    326 			remote-endpoint = <&panel_input>;
    327 		};
    328 	};
    329 };
    330