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                 device_type = "memory";
  27                 reg = <0x40000000 0x40000000>;
  28         };
  29
  30         gpio-keys {
  31                 compatible = "gpio-keys-polled";
  32                 #address-cells = <1>;
  33                 #size-cells = <0>;
  34                 poll-interval = <100>;
  35
  36                 pal-switch {
  37                         label = "pal";
  38                         linux,input-type = <EV_SW>;
  39                         linux,code = <KEY_SWITCHVIDEOMODE>;
  40                         gpios = <&gpio GPIOH_7 GPIO_ACTIVE_LOW>;
  41                 };
  42
  43                 ntsc-switch {
  44                         label = "ntsc";
  45                         linux,input-type = <EV_SW>;
  46                         linux,code = <KEY_SWITCHVIDEOMODE>;
  47                         gpios = <&gpio GPIOH_8 GPIO_ACTIVE_HIGH>;
  48                 };
  49
  50                 power-button {
  51                         label = "power";
  52                         linux,code = <KEY_POWER>;
  53                         gpios = <&gpio GPIOH_9 GPIO_ACTIVE_LOW>;
  54                 };
  55         };
  56
  57         gpio-poweroff {
  58                 compatible = "gpio-poweroff";
  59                 /*
  60                  * shutdown is managed by the EC (embedded micro-controller)
  61                  * which is configured through GPIOAO_2 (poweroff GPIO) and
  62                  * GPIOAO_7 (power LED, which has to go LOW as well).
  63                  */
  64                 gpios = <&gpio_ao GPIOAO_2 GPIO_ACTIVE_LOW>;
  65                 timeout-ms = <20000>;
  66         };
  67
  68         iio-hwmon {
  69                 compatible = "iio-hwmon";
  70                 io-channels = <&saradc 8>;
  71         };
  72
  73         leds {
  74                 compatible = "gpio-leds";
  75
  76                 power {
  77                         label = "ec100:red:power";
  78                         /*
  79                          * Needs to go LOW (together with the poweroff GPIO)
  80                          * during shutdown to allow the EC (embedded
  81                          * micro-controller) to shutdown the system. Setting
  82                          * the output to LOW signals the EC to start a
  83                          * "breathing"/pulsing effect until the power is fully
  84                          * turned off.
  85                          */
  86                         gpios = <&gpio_ao GPIOAO_7 GPIO_ACTIVE_HIGH>;
  87                         default-state = "on";
  88                 };
  89         };
  90
  91         usb_vbus: regulator-usb-vbus {
  92                 /*
  93                  * Silergy SY6288CCAC-GP 2A Power Distribution Switch.
  94                  */
  95                 compatible = "regulator-fixed";
  96
  97                 regulator-name = "USB_VBUS";
  98
  99                 regulator-min-microvolt = <5000000>;
 100                 regulator-max-microvolt = <5000000>;
 101
 102                 vin-supply = <&vcc_5v>;
 103
 104                 /*
 105                  * signal name from the schematics: USB_PWR_EN
 106                  */
 107                 gpio = <&gpio_ao GPIOAO_5 GPIO_ACTIVE_HIGH>;
 108                 enable-active-high;
 109         };
 110
 111         vcc_5v: regulator-vcc5v {
 112                 /*
 113                  * supplied by the main power input which called PWR_5V_STB
 114                  * in the schematics
 115                  */
 116                 compatible = "regulator-fixed";
 117
 118                 regulator-name = "VCC5V";
 119
 120                 regulator-min-microvolt = <5000000>;
 121                 regulator-max-microvolt = <5000000>;
 122
 123                 /*
 124                  * signal name from the schematics: 3V3_5V_EN
 125                  */
 126                 gpio = <&gpio GPIODV_29 GPIO_ACTIVE_LOW>;
 127
 128                 regulator-boot-on;
 129                 regulator-always-on;
 130         };
 131
 132         vcck: regulator-vcck {
 133                 /*
 134                  * Silergy SY8089AAC-GP 2A continuous, 3A peak, 1MHz
 135                  * Synchronous Step Down Regulator.
 136                  */
 137                 compatible = "pwm-regulator";
 138
 139                 regulator-name = "VCCK";
 140                 regulator-min-microvolt = <860000>;
 141                 regulator-max-microvolt = <1140000>;
 142
 143                 vin-supply = <&vcc_5v>;
 144
 145                 pwms = <&pwm_cd 0 1148 0>;
 146                 pwm-dutycycle-range = <100 0>;
 147
 148                 regulator-boot-on;
 149                 regulator-always-on;
 150         };
 151
 152         vcc_1v8: regulator-vcc1v8 {
 153                 /*
 154                  * ABLIC S-1339D18-M5001-GP
 155                  */
 156                 compatible = "regulator-fixed";
 157
 158                 regulator-name = "VCC1V8";
 159                 regulator-min-microvolt = <1800000>;
 160                 regulator-max-microvolt = <1800000>;
 161
 162                 vin-supply = <&vcc_3v3>;
 163         };
 164
 165         vcc_3v3: regulator-vcc3v3 {
 166                 /*
 167                  * Silergy SY8089AAC-GP 2A continuous, 3A peak, 1MHz
 168                  * Synchronous Step Down Regulator. Also called
 169                  * VDDIO_AO3.3V in the schematics.
 170                  */
 171                 compatible = "regulator-fixed";
 172
 173                 regulator-name = "VCC3V3";
 174                 regulator-min-microvolt = <3300000>;
 175                 regulator-max-microvolt = <3300000>;
 176
 177                 vin-supply = <&vcc_5v>;
 178         };
 179
 180         vcc_ddr3: regulator-vcc-ddr3 {
 181                 /*
 182                  * Silergy SY8089AAC-GP 2A continuous, 3A peak, 1MHz
 183                  * Synchronous Step Down Regulator. Also called
 184                  * DDR3_1.5V in the schematics.
 185                  */
 186                 compatible = "regulator-fixed";
 187
 188                 regulator-name = "VCC_DDR3_1V5";
 189                 regulator-min-microvolt = <1500000>;
 190                 regulator-max-microvolt = <1500000>;
 191
 192                 vin-supply = <&vcc_5v>;
 193
 194                 regulator-boot-on;
 195                 regulator-always-on;
 196         };
 197
 198         vcc_rtc: regulator-vcc-rtc {
 199                 /*
 200                  * Global Mixed-mode Technology Inc. G918T12U-GP
 201                  */
 202                 compatible = "regulator-fixed";
 203
 204                 regulator-name = "VCC_RTC";
 205                 regulator-min-microvolt = <900000>;
 206                 regulator-max-microvolt = <900000>;
 207
 208                 /*
 209                  * When the board is powered then the input is VCC3V3,
 210                  * otherwise power is taken from the coin cell battery.
 211                  */
 212                 vin-supply = <&vcc_3v3>;
 213         };
 214 };
 215
 216 &cpu0 {
 217         cpu-supply = <&vcck>;
 218 };
 219
 220 &ethmac {
 221         status = "okay";
 222
 223         pinctrl-0 = <&eth_rmii_pins>;
 224         pinctrl-names = "default";
 225
 226         phy-handle = <&eth_phy0>;
 227         phy-mode = "rmii";
 228
 229         snps,reset-gpio = <&gpio GPIOH_4 0>;
 230         snps,reset-delays-us = <0 10000 1000000>;
 231         snps,reset-active-low;
 232
 233         mdio {
 234                 compatible = "snps,dwmac-mdio";
 235                 #address-cells = <1>;
 236                 #size-cells = <0>;
 237
 238                 eth_phy0: ethernet-phy@0 {
 239                         /* IC Plus IP101A/G (0x02430c54) */
 240                         reg = <0>;
 241                         icplus,select-interrupt;
 242                         interrupt-parent = <&gpio_intc>;
 243                         /* GPIOH_3 */
 244                         interrupts = <17 IRQ_TYPE_LEVEL_LOW>;
 245                 };
 246         };
 247 };
 248
 249 &i2c_A {
 250         status = "okay";
 251         pinctrl-0 = <&i2c_a_pins>;
 252         pinctrl-names = "default";
 253
 254         rt5640: codec@1c {
 255                 compatible = "realtek,rt5640";
 256                 reg = <0x1c>;
 257                 interrupt-parent = <&gpio_intc>;
 258                 interrupts = <13 IRQ_TYPE_EDGE_BOTH>; /* GPIOAO_13 */
 259                 realtek,in1-differential;
 260         };
 261 };
 262
 263 &saradc {
 264         status = "okay";
 265         vref-supply = <&vcc_1v8>;
 266 };
 267
 268 &sdio {
 269         status = "okay";
 270
 271         pinctrl-0 = <&sd_b_pins>;
 272         pinctrl-names = "default";
 273
 274         /* SD card */
 275         sd_card_slot: slot@1 {
 276                 compatible = "mmc-slot";
 277                 reg = <1>;
 278                 status = "okay";
 279
 280                 bus-width = <4>;
 281                 no-sdio;
 282                 cap-mmc-highspeed;
 283                 cap-sd-highspeed;
 284                 disable-wp;
 285
 286                 cd-gpios = <&gpio CARD_6 GPIO_ACTIVE_LOW>;
 287
 288                 vmmc-supply = <&vcc_3v3>;
 289         };
 290 };
 291
 292 &gpio_ao {
 293         gpio-line-names = "Linux_TX", "Linux_RX",
 294                           "SLP_S5_N", "USB2_OC_FLAG#",
 295                           "HUB_RST", "USB_PWR_EN",
 296                           "I2S_IN", "SLP_S1_N",
 297                           "TCK", "TMS", "TDI", "TDO",
 298                           "HDMI_CEC", "5640_IRQ",
 299                           "MUTE", "S805_TEST#";
 300 };
 301
 302 &gpio {
 303         gpio-line-names = /* Bank GPIOX */
 304                           "WIFI_SD_D0", "WIFI_SD_D1", "WIFI_SD_D2",
 305                           "WIFI_SD_D3", "BTPCM_DOUT", "BTPCM_DIN",
 306                           "BTPCM_SYNC", "BTPCM_CLK", "WIFI_SD_CLK",
 307                           "WIFI_SD_CMD", "WIFI_32K", "WIFI_PWREN",
 308                           "UART_B_TX", "UART_B_RX", "UART_B_CTS_N",
 309                           "UART_B_RTS_N", "BT_EN", "WIFI_WAKE_HOST",
 310                           /* Bank GPIOY */
 311                           "", "", "", "", "", "", "", "", "", "",
 312                           "", "",
 313                           /* Bank GPIODV */
 314                           "VCCK_PWM_C", "I2C_SDA_A", "I2C_SCL_A",
 315                           "I2C_SDA_B", "I2C_SCL_B", "VDDEE_PWM_D",
 316                           "VDDEE_PWM 3V3_5V_EN",
 317                           /* Bank GPIOH */
 318                           "HDMI_HPD", "HDMI_I2C_SDA", "HDMI_I2C_SCL",
 319                           "RMII_IRQ", "RMII_RST#", "RMII_TXD1",
 320                           "RMII_TXD0", "AV_select_1", "AV_select_2",
 321                           "MCU_Control_S",
 322                           /* Bank CARD */
 323                           "SD_D1_B", "SD_D0_B", "SD_CLK_8726MX",
 324                           "SD_CMD_8726MX", "SD_D3_B", "SD_D2_B",
 325                           "CARD_EN_DET (CARD_DET)",
 326                           /* Bank BOOT */
 327                           "NAND_D0 (EMMC)", "NAND_D1 (EMMC)",
 328                           "NAND_D2 (EMMC)", "NAND_D3 (EMMC)",
 329                           "NAND_D4 (EMMC)", "NAND_D5 (EMMC)",
 330                           "NAND_D6 (EMMC)", "NAND_D7 (EMMC)",
 331                           "NAND_CS1 (EMMC)", "NAND_CS2 iNAND_RS1 (EMMC)",
 332                           "NAND_nR/B iNAND_CMD (EMMC)", "NAND_ALE (EMMC)",
 333                           "NAND_CLE (EMMC)", "nRE_S1 NAND_nRE (EMMC)",
 334                           "nWE_S1 NAND_nWE (EMMC)",  "", "", "SPI_CS",
 335                           /* Bank DIF */
 336                           "RMII_RXD1", "RMII_RXD0", "RMII_CRS_DV",
 337                           "RMII_50M_IN", "GPIODIF_4", "GPIODIF_5",
 338                           "RMII_TXEN", "CPUETH_25MOUT", "RMII_MDC",
 339                           "RMII_MDIO";
 340 };
 341
 342 &pwm_cd {
 343         status = "okay";
 344         pinctrl-0 = <&pwm_c1_pins>;
 345         pinctrl-names = "default";
 346         clocks = <&clkc CLKID_XTAL>;
 347         clock-names = "clkin0";
 348 };
 349
 350 /* exposed through the pin headers labeled "URDUG1" on the top of the PCB */
 351 &uart_AO {
 352         status = "okay";
 353         pinctrl-0 = <&uart_ao_a_pins>;
 354         pinctrl-names = "default";
 355 };
 356
 357 /*
 358  * connected to the Bluetooth part of the RTL8723BS SDIO wifi / Bluetooth
 359  * combo chip. This is only available on the variant with 2GB RAM.
 360  */
 361 &uart_B {
 362         status = "okay";
 363         pinctrl-0 = <&uart_b0_pins>, <&uart_b0_cts_rts_pins>;
 364         pinctrl-names = "default";
 365         uart-has-rtscts;
 366 };
 367
 368 &usb1 {
 369         status = "okay";
 370         vbus-supply = <&usb_vbus>;
 371 };
 372
 373 &usb1_phy {
 374         status = "okay";
 375 };