arch/arm/boot/dts/meson8b-ec100.dts

   1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
   2 /*
   3  * Copyright (c) 2018 Martin Blumenstingl <martin.blumenstingl@googlemail.com>.
   4  */
   5
   6 /dts-v1/;
   7
   8 #include <dt-bindings/gpio/gpio.h>
   9 #include <dt-bindings/input/input.h>
  10
  11 #include "meson8b.dtsi"
  12
  13 / {
  14         model = "Endless Computers Endless Mini";
  15         compatible = "endless,ec100", "amlogic,meson8b";
  16
  17         aliases {
  18                 serial0 = &uart_AO;
  19         };
  20
  21         chosen {
  22                 stdout-path = "serial0:115200n8";
  23         };
  24
  25         memory {
  26                 reg = <0x40000000 0x40000000>;
  27         };
  28
  29         gpio-keys {
  30                 compatible = "gpio-keys-polled";
  31                 #address-cells = <1>;
  32                 #size-cells = <0>;
  33                 poll-interval = <100>;
  34
  35                 pal-switch {
  36                         label = "pal";
  37                         linux,input-type = <EV_SW>;
  38                         linux,code = <KEY_SWITCHVIDEOMODE>;
  39                         gpios = <&gpio GPIOH_7 GPIO_ACTIVE_LOW>;
  40                 };
  41
  42                 ntsc-switch {
  43                         label = "ntsc";
  44                         linux,input-type = <EV_SW>;
  45                         linux,code = <KEY_SWITCHVIDEOMODE>;
  46                         gpios = <&gpio GPIOH_8 GPIO_ACTIVE_HIGH>;
  47                 };
  48
  49                 power-button {
  50                         label = "power";
  51                         linux,code = <KEY_POWER>;
  52                         gpios = <&gpio GPIOH_9 GPIO_ACTIVE_LOW>;
  53                 };
  54         };
  55
  56         gpio-poweroff {
  57                 compatible = "gpio-poweroff";
  58                 /*
  59                  * shutdown is managed by the EC (embedded micro-controller)
  60                  * which is configured through GPIOAO_2 (poweroff GPIO) and
  61                  * GPIOAO_7 (power LED, which has to go LOW as well).
  62                  */
  63                 gpios = <&gpio_ao GPIOAO_2 GPIO_ACTIVE_LOW>;
  64                 timeout-ms = <20000>;
  65         };
  66
  67         leds {
  68                 compatible = "gpio-leds";
  69
  70                 power {
  71                         label = "ec100:red:power";
  72                         /*
  73                          * Needs to go LOW (together with the poweroff GPIO)
  74                          * during shutdown to allow the EC (embedded
  75                          * micro-controller) to shutdown the system. Setting
  76                          * the output to LOW signals the EC to start a
  77                          * "breathing"/pulsing effect until the power is fully
  78                          * turned off.
  79                          */
  80                         gpios = <&gpio_ao GPIOAO_7 GPIO_ACTIVE_HIGH>;
  81                         default-state = "on";
  82                 };
  83         };
  84
  85         usb_vbus: regulator-usb-vbus {
  86                 compatible = "regulator-fixed";
  87
  88                 regulator-name = "USB_VBUS";
  89
  90                 regulator-min-microvolt = <5000000>;
  91                 regulator-max-microvolt = <5000000>;
  92
  93                 gpio = <&gpio_ao GPIOAO_5 GPIO_ACTIVE_HIGH>;
  94                 enable-active-high;
  95         };
  96
  97         vcc_5v: regulator-vcc5v {
  98                 compatible = "regulator-fixed";
  99
 100                 regulator-name = "VCC5V";
 101
 102                 regulator-min-microvolt = <5000000>;
 103                 regulator-max-microvolt = <5000000>;
 104
 105                 gpio = <&gpio GPIODV_29 GPIO_ACTIVE_LOW>;
 106
 107                 regulator-boot-on;
 108                 regulator-always-on;
 109         };
 110
 111         vcck: regulator-vcck {
 112                 compatible = "pwm-regulator";
 113
 114                 regulator-name = "VCCK";
 115                 regulator-min-microvolt = <860000>;
 116                 regulator-max-microvolt = <1140000>;
 117
 118                 pwms = <&pwm_cd 0 1148 0>;
 119                 pwm-dutycycle-range = <100 0>;
 120
 121                 regulator-boot-on;
 122                 regulator-always-on;
 123         };
 124
 125         vcc_1v8: regulator-vcc1v8 {
 126                 compatible = "regulator-fixed";
 127
 128                 regulator-name = "VCC1V8";
 129                 regulator-min-microvolt = <1800000>;
 130                 regulator-max-microvolt = <1800000>;
 131         };
 132
 133         vcc_3v3: regulator-vcc3v3 {
 134                 compatible = "regulator-fixed";
 135
 136                 regulator-name = "VCC3V3";
 137                 regulator-min-microvolt = <3300000>;
 138                 regulator-max-microvolt = <3300000>;
 139         };
 140 };
 141
 142 &cpu0 {
 143         cpu-supply = <&vcck>;
 144 };
 145
 146 &ethmac {
 147         status = "okay";
 148
 149         pinctrl-0 = <&eth_rmii_pins>;
 150         pinctrl-names = "default";
 151
 152         phy-handle = <&eth_phy0>;
 153         phy-mode = "rmii";
 154
 155         snps,reset-gpio = <&gpio GPIOH_4 0>;
 156         snps,reset-delays-us = <0 10000 1000000>;
 157         snps,reset-active-low;
 158
 159         mdio {
 160                 compatible = "snps,dwmac-mdio";
 161                 #address-cells = <1>;
 162                 #size-cells = <0>;
 163
 164                 eth_phy0: ethernet-phy@0 {
 165                         /* IC Plus IP101A/G (0x02430c54) */
 166                         reg = <0>;
 167                 };
 168         };
 169 };
 170
 171 &i2c_A {
 172         status = "okay";
 173         pinctrl-0 = <&i2c_a_pins>;
 174         pinctrl-names = "default";
 175
 176         rt5640: codec@1c {
 177                 compatible = "realtek,rt5640";
 178                 reg = <0x1c>;
 179                 interrupt-parent = <&gpio_intc>;
 180                 interrupts = <13 IRQ_TYPE_EDGE_BOTH>; /* GPIOAO_13 */
 181                 realtek,in1-differential;
 182         };
 183 };
 184
 185 &saradc {
 186         status = "okay";
 187         vref-supply = <&vcc_1v8>;
 188 };
 189
 190 &sdio {
 191         status = "okay";
 192
 193         pinctrl-0 = <&sd_b_pins>;
 194         pinctrl-names = "default";
 195
 196         /* SD card */
 197         sd_card_slot: slot@1 {
 198                 compatible = "mmc-slot";
 199                 reg = <1>;
 200                 status = "okay";
 201
 202                 bus-width = <4>;
 203                 no-sdio;
 204                 cap-mmc-highspeed;
 205                 cap-sd-highspeed;
 206                 disable-wp;
 207
 208                 cd-gpios = <&gpio CARD_6 GPIO_ACTIVE_HIGH>;
 209                 cd-inverted;
 210
 211                 vmmc-supply = <&vcc_3v3>;
 212         };
 213 };
 214
 215 &pwm_cd {
 216         status = "okay";
 217         pinctrl-0 = <&pwm_c1_pins>;
 218         pinctrl-names = "default";
 219         clocks = <&clkc CLKID_XTAL>;
 220         clock-names = "clkin0";
 221 };
 222
 223 /* exposed through the pin headers labeled "URDUG1" on the top of the PCB */
 224 &uart_AO {
 225         status = "okay";
 226         pinctrl-0 = <&uart_ao_a_pins>;
 227         pinctrl-names = "default";
 228 };
 229
 230 /*
 231  * connected to the Bluetooth part of the RTL8723BS SDIO wifi / Bluetooth
 232  * combo chip. This is only available on the variant with 2GB RAM.
 233  */
 234 &uart_B {
 235         status = "okay";
 236         pinctrl-0 = <&uart_b0_pins>, <&uart_b0_cts_rts_pins>;
 237         pinctrl-names = "default";
 238         uart-has-rtscts;
 239 };
 240
 241 &usb1 {
 242         status = "okay";
 243         vbus-supply = <&usb_vbus>;
 244 };
 245
 246 &usb1_phy {
 247         status = "okay";
 248 };