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      1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
      2 /*
      3  * Device Tree Source for A20-SOM204-EVB Board
      4  *
      5  * Copyright (C) 2018 Olimex Ltd.
      6  *   Author: Stefan Mavrodiev <stefan (a] olimex.com>
      7  */
      8 
      9 /dts-v1/;
     10 #include "sun7i-a20.dtsi"
     11 #include "sunxi-common-regulators.dtsi"
     12 
     13 
     14 #include <dt-bindings/gpio/gpio.h>
     15 #include <dt-bindings/interrupt-controller/irq.h>
     16 #include <dt-bindings/pwm/pwm.h>
     17 
     18 / {
     19 	model = "Olimex A20-SOM204-EVB";
     20 	compatible = "olimex,a20-olimex-som204-evb", "allwinner,sun7i-a20";
     21 
     22 	aliases {
     23 		serial0 = &uart0;
     24 		serial1 = &uart4;
     25 		serial2 = &uart7;
     26 		spi0 = &spi1;
     27 		spi1 = &spi2;
     28 		ethernet1 = &rtl8723bs;
     29 	};
     30 
     31 	chosen {
     32 		stdout-path = "serial0:115200n8";
     33 	};
     34 
     35 	leds {
     36 		compatible = "gpio-leds";
     37 
     38 		stat {
     39 			label = "a20-som204-evb:green:stat";
     40 			gpios = <&pio 8 0 GPIO_ACTIVE_HIGH>;
     41 			default-state = "on";
     42 		};
     43 
     44 		led1 {
     45 			label = "a20-som204-evb:green:led1";
     46 			gpios = <&pio 8 10 GPIO_ACTIVE_HIGH>;
     47 			default-state = "on";
     48 		};
     49 
     50 		led2 {
     51 			label = "a20-som204-evb:yellow:led2";
     52 			gpios = <&pio 8 11 GPIO_ACTIVE_HIGH>;
     53 			default-state = "on";
     54 		};
     55 	};
     56 
     57 	rtl_pwrseq: rtl_pwrseq {
     58 		compatible = "mmc-pwrseq-simple";
     59 		reset-gpios = <&pio 6 9 GPIO_ACTIVE_LOW>;
     60 	};
     61 };
     62 
     63 &ahci {
     64 	target-supply = <&reg_ahci_5v>;
     65 	status = "okay";
     66 };
     67 
     68 &codec {
     69 	status = "okay";
     70 };
     71 
     72 &cpu0 {
     73 	cpu-supply = <&reg_dcdc2>;
     74 };
     75 
     76 &ehci0 {
     77 	status = "okay";
     78 };
     79 
     80 &ehci1 {
     81 	status = "okay";
     82 };
     83 
     84 &gmac {
     85 	pinctrl-names = "default";
     86 	pinctrl-0 = <&gmac_pins_rgmii_a>;
     87 	phy = <&phy3>;
     88 	phy-mode = "rgmii";
     89 	phy-supply = <&reg_vcc3v3>;
     90 
     91 	snps,reset-gpio = <&pio 0 17 GPIO_ACTIVE_HIGH>;
     92 	snps,reset-active-low;
     93 	snps,reset-delays-us = <0 10000 1000000>;
     94 	status = "okay";
     95 
     96 	phy3: ethernet-phy@3 {
     97 		reg = <3>;
     98 	};
     99 };
    100 
    101 &i2c0 {
    102 	pinctrl-names = "default";
    103 	pinctrl-0 = <&i2c0_pins_a>;
    104 	status = "okay";
    105 
    106 	axp209: pmic@34 {
    107 		reg = <0x34>;
    108 		interrupt-parent = <&nmi_intc>;
    109 		interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
    110 	};
    111 };
    112 
    113 /* Exposed to UEXT1 */
    114 &i2c1 {
    115 	pinctrl-names = "default";
    116 	pinctrl-0 = <&i2c1_pins_a>;
    117 	status = "okay";
    118 
    119 	eeprom: eeprom@50 {
    120 		compatible = "atmel,24c16";
    121 		reg = <0x50>;
    122 		pagesize = <16>;
    123 	};
    124 };
    125 
    126 /* Exposed to UEXT2 */
    127 &i2c2 {
    128 	pinctrl-names = "default";
    129 	pinctrl-0 = <&i2c2_pins_a>;
    130 	status = "okay";
    131 };
    132 
    133 &ir0 {
    134 	pinctrl-names = "default";
    135 	pinctrl-0 = <&ir0_rx_pins_a>;
    136 	status = "okay";
    137 };
    138 
    139 &mmc0 {
    140 	pinctrl-names = "default";
    141 	pinctrl-0 = <&mmc0_pins_a>;
    142 	vmmc-supply = <&reg_vcc3v3>;
    143 	bus-width = <4>;
    144 	cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>;
    145 	cd-inverted;
    146 	status = "okay";
    147 };
    148 
    149 &mmc3 {
    150 	pinctrl-names = "default";
    151 	pinctrl-0 = <&mmc3_pins_a>;
    152 	vmmc-supply = <&reg_vcc3v3>;
    153 	mmc-pwrseq = <&rtl_pwrseq>;
    154 	bus-width = <4>;
    155 	non-removable;
    156 	status = "okay";
    157 
    158 	rtl8723bs: sdio_wifi@1 {
    159 		reg = <1>;
    160 	};
    161 };
    162 
    163 &ohci0 {
    164 	status = "okay";
    165 };
    166 
    167 &ohci1 {
    168 	status = "okay";
    169 };
    170 
    171 &otg_sram {
    172 	status = "okay";
    173 };
    174 
    175 &pio {
    176 	bt_uart_pins: bt_uart_pins@0 {
    177 		pins = "PG6", "PG7", "PG8";
    178 		function = "uart3";
    179 	};
    180 };
    181 
    182 #include "axp209.dtsi"
    183 
    184 &reg_ahci_5v {
    185 	gpio = <&pio 2 3 GPIO_ACTIVE_HIGH>;
    186 	status = "okay";
    187 };
    188 
    189 &reg_dcdc2 {
    190 	regulator-always-on;
    191 	regulator-min-microvolt = <1000000>;
    192 	regulator-max-microvolt = <1400000>;
    193 	regulator-name = "vdd-cpu";
    194 };
    195 
    196 &reg_dcdc3 {
    197 	regulator-always-on;
    198 	regulator-min-microvolt = <1000000>;
    199 	regulator-max-microvolt = <1400000>;
    200 	regulator-name = "vdd-int-dll";
    201 };
    202 
    203 &reg_ldo1 {
    204 	regulator-always-on;
    205 	regulator-min-microvolt = <1300000>;
    206 	regulator-max-microvolt = <1300000>;
    207 	regulator-name = "vdd-rtc";
    208 };
    209 
    210 &reg_ldo2 {
    211 	regulator-always-on;
    212 	regulator-min-microvolt = <3000000>;
    213 	regulator-max-microvolt = <3000000>;
    214 	regulator-name = "avcc";
    215 };
    216 
    217 &reg_ldo4 {
    218 	regulator-min-microvolt = <3300000>;
    219 	regulator-max-microvolt = <3300000>;
    220 	regulator-name = "vcc-pg";
    221 };
    222 
    223 &reg_usb0_vbus {
    224 	gpio = <&pio 2 17 GPIO_ACTIVE_HIGH>;
    225 	status = "okay";
    226 };
    227 
    228 &reg_usb1_vbus {
    229 	status = "okay";
    230 };
    231 
    232 &reg_usb2_vbus {
    233 	status = "okay";
    234 };
    235 
    236 /* Exposed to UEXT1 */
    237 &spi1 {
    238 	pinctrl-names = "default";
    239 	pinctrl-0 = <&spi1_pins_a>,
    240 		    <&spi1_cs0_pins_a>;
    241 	status = "okay";
    242 };
    243 
    244 /* Exposed to UEXT2 */
    245 &spi2 {
    246 	pinctrl-names = "default";
    247 	pinctrl-0 = <&spi2_pins_a>,
    248 		    <&spi2_cs0_pins_a>;
    249 	status = "okay";
    250 };
    251 
    252 &uart0 {
    253 	pinctrl-names = "default";
    254 	pinctrl-0 = <&uart0_pins_a>;
    255 	status = "okay";
    256 };
    257 
    258 /* Used for RTL8723BS bluetooth */
    259 &uart3 {
    260 	pinctrl-names = "default";
    261 	pinctrl-0 = <&bt_uart_pins>;
    262 	status = "okay";
    263 };
    264 
    265 /* Exposed to UEXT1 */
    266 &uart4 {
    267 	pinctrl-names = "default";
    268 	pinctrl-0 = <&uart4_pins_a>;
    269 	status = "okay";
    270 };
    271 
    272 /* Exposed to UEXT2 */
    273 &uart7 {
    274 	pinctrl-names = "default";
    275 	pinctrl-0 = <&uart7_pins_a>;
    276 	status = "okay";
    277 };
    278 
    279 &usb_otg {
    280 	dr_mode = "otg";
    281 	status = "okay";
    282 };
    283 
    284 &usb_power_supply {
    285 	status = "okay";
    286 };
    287 
    288 &usbphy {
    289 	usb0_id_det-gpio = <&pio 7 4 GPIO_ACTIVE_HIGH>; /* PH4 */
    290 	usb0_vbus_det-gpio = <&pio 7 5 GPIO_ACTIVE_HIGH>; /* PH5 */
    291 	usb0_vbus_power-supply = <&usb_power_supply>;
    292 	usb0_vbus-supply = <&reg_usb0_vbus>;
    293 	usb1_vbus-supply = <&reg_usb1_vbus>;
    294 	usb2_vbus-supply = <&reg_usb2_vbus>;
    295 	status = "okay";
    296 };
    297