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         rtc32k_xtal: rtc32k-xtal-clk {
  92                 /* X2 in the schematics */
  93                 compatible = "fixed-clock";
  94                 clock-frequency = <32768>;
  95                 clock-output-names = "RTC32K";
  96                 #clock-cells = <0>;
  97         };
  98
  99         usb_vbus: regulator-usb-vbus {
 100                 /*
 101                  * Silergy SY6288CCAC-GP 2A Power Distribution Switch.
 102                  */
 103                 compatible = "regulator-fixed";
 104
 105                 regulator-name = "USB_VBUS";
 106
 107                 regulator-min-microvolt = <5000000>;
 108                 regulator-max-microvolt = <5000000>;
 109
 110                 vin-supply = <&vcc_5v>;
 111
 112                 /*
 113                  * signal name from the schematics: USB_PWR_EN
 114                  */
 115                 gpio = <&gpio_ao GPIOAO_5 GPIO_ACTIVE_HIGH>;
 116                 enable-active-high;
 117         };
 118
 119         vcc_5v: regulator-vcc5v {
 120                 /*
 121                  * supplied by the main power input which called PWR_5V_STB
 122                  * in the schematics
 123                  */
 124                 compatible = "regulator-fixed";
 125
 126                 regulator-name = "VCC5V";
 127
 128                 regulator-min-microvolt = <5000000>;
 129                 regulator-max-microvolt = <5000000>;
 130
 131                 /*
 132                  * signal name from the schematics: 3V3_5V_EN
 133                  */
 134                 gpio = <&gpio GPIODV_29 GPIO_ACTIVE_LOW>;
 135
 136                 regulator-boot-on;
 137                 regulator-always-on;
 138         };
 139
 140         vcck: regulator-vcck {
 141                 /*
 142                  * Silergy SY8089AAC-GP 2A continuous, 3A peak, 1MHz
 143                  * Synchronous Step Down Regulator.
 144                  */
 145                 compatible = "pwm-regulator";
 146
 147                 regulator-name = "VCCK";
 148                 regulator-min-microvolt = <860000>;
 149                 regulator-max-microvolt = <1140000>;
 150
 151                 vin-supply = <&vcc_5v>;
 152
 153                 pwms = <&pwm_cd 0 1148 0>;
 154                 pwm-dutycycle-range = <100 0>;
 155
 156                 regulator-boot-on;
 157                 regulator-always-on;
 158         };
 159
 160         vcc_1v8: regulator-vcc1v8 {
 161                 /*
 162                  * ABLIC S-1339D18-M5001-GP
 163                  */
 164                 compatible = "regulator-fixed";
 165
 166                 regulator-name = "VCC1V8";
 167                 regulator-min-microvolt = <1800000>;
 168                 regulator-max-microvolt = <1800000>;
 169
 170                 vin-supply = <&vcc_3v3>;
 171         };
 172
 173         vcc_3v3: regulator-vcc3v3 {
 174                 /*
 175                  * Silergy SY8089AAC-GP 2A continuous, 3A peak, 1MHz
 176                  * Synchronous Step Down Regulator. Also called
 177                  * VDDIO_AO3.3V in the schematics.
 178                  */
 179                 compatible = "regulator-fixed";
 180
 181                 regulator-name = "VCC3V3";
 182                 regulator-min-microvolt = <3300000>;
 183                 regulator-max-microvolt = <3300000>;
 184
 185                 vin-supply = <&vcc_5v>;
 186         };
 187
 188         vcc_ddr3: regulator-vcc-ddr3 {
 189                 /*
 190                  * Silergy SY8089AAC-GP 2A continuous, 3A peak, 1MHz
 191                  * Synchronous Step Down Regulator. Also called
 192                  * DDR3_1.5V in the schematics.
 193                  */
 194                 compatible = "regulator-fixed";
 195
 196                 regulator-name = "VCC_DDR3_1V5";
 197                 regulator-min-microvolt = <1500000>;
 198                 regulator-max-microvolt = <1500000>;
 199
 200                 vin-supply = <&vcc_5v>;
 201
 202                 regulator-boot-on;
 203                 regulator-always-on;
 204         };
 205
 206         vcc_rtc: regulator-vcc-rtc {
 207                 /*
 208                  * Global Mixed-mode Technology Inc. G918T12U-GP
 209                  */
 210                 compatible = "regulator-fixed";
 211
 212                 regulator-name = "VCC_RTC";
 213                 regulator-min-microvolt = <900000>;
 214                 regulator-max-microvolt = <900000>;
 215
 216                 /*
 217                  * When the board is powered then the input is VCC3V3,
 218                  * otherwise power is taken from the coin cell battery.
 219                  */
 220                 vin-supply = <&vcc_3v3>;
 221         };
 222
 223         vddee: regulator-vddee {
 224                 /*
 225                  * Silergy SY8089AAC-GP 2A continuous, 3A peak, 1MHz
 226                  * Synchronous Step Down Regulator. Also called VDDAO
 227                  * in a part of the schematics.
 228                  */
 229                 compatible = "pwm-regulator";
 230
 231                 regulator-name = "VDDEE";
 232                 regulator-min-microvolt = <860000>;
 233                 regulator-max-microvolt = <1140000>;
 234
 235                 vin-supply = <&vcc_5v>;
 236
 237                 pwms = <&pwm_cd 1 1148 0>;
 238                 pwm-dutycycle-range = <100 0>;
 239
 240                 regulator-boot-on;
 241                 regulator-always-on;
 242         };
 243 };
 244
 245 &cpu0 {
 246         cpu-supply = <&vcck>;
 247 };
 248
 249 &ethmac {
 250         status = "okay";
 251
 252         pinctrl-0 = <&eth_rmii_pins>;
 253         pinctrl-names = "default";
 254
 255         phy-handle = <&eth_phy0>;
 256         phy-mode = "rmii";
 257
 258         mdio {
 259                 compatible = "snps,dwmac-mdio";
 260                 #address-cells = <1>;
 261                 #size-cells = <0>;
 262
 263                 eth_phy0: ethernet-phy@0 {
 264                         /* IC Plus IP101A/G (0x02430c54) */
 265                         reg = <0>;
 266
 267                         reset-assert-us = <10000>;
 268                         reset-deassert-us = <10000>;
 269                         reset-gpios = <&gpio GPIOH_4 GPIO_ACTIVE_LOW>;
 270
 271                         icplus,select-interrupt;
 272                         interrupt-parent = <&gpio_intc>;
 273                         /* GPIOH_3 */
 274                         interrupts = <17 IRQ_TYPE_LEVEL_LOW>;
 275                 };
 276         };
 277 };
 278
 279 &i2c_A {
 280         status = "okay";
 281         pinctrl-0 = <&i2c_a_pins>;
 282         pinctrl-names = "default";
 283
 284         rt5640: codec@1c {
 285                 compatible = "realtek,rt5640";
 286                 reg = <0x1c>;
 287                 interrupt-parent = <&gpio_intc>;
 288                 interrupts = <13 IRQ_TYPE_EDGE_BOTH>; /* GPIOAO_13 */
 289                 realtek,in1-differential;
 290         };
 291 };
 292
 293 &mali {
 294         mali-supply = <&vddee>;
 295 };
 296
 297 &saradc {
 298         status = "okay";
 299         vref-supply = <&vcc_1v8>;
 300 };
 301
 302 &sdio {
 303         status = "okay";
 304
 305         pinctrl-0 = <&sd_b_pins>;
 306         pinctrl-names = "default";
 307
 308         /* SD card */
 309         sd_card_slot: slot@1 {
 310                 compatible = "mmc-slot";
 311                 reg = <1>;
 312                 status = "okay";
 313
 314                 bus-width = <4>;
 315                 no-sdio;
 316                 cap-mmc-highspeed;
 317                 cap-sd-highspeed;
 318                 disable-wp;
 319
 320                 cd-gpios = <&gpio CARD_6 GPIO_ACTIVE_LOW>;
 321
 322                 vmmc-supply = <&vcc_3v3>;
 323         };
 324 };
 325
 326 &gpio_ao {
 327         gpio-line-names = "Linux_TX", "Linux_RX",
 328                           "SLP_S5_N", "USB2_OC_FLAG#",
 329                           "HUB_RST", "USB_PWR_EN",
 330                           "I2S_IN", "SLP_S1_N",
 331                           "TCK", "TMS", "TDI", "TDO",
 332                           "HDMI_CEC", "5640_IRQ",
 333                           "MUTE", "S805_TEST#";
 334 };
 335
 336 &gpio {
 337         gpio-line-names = /* Bank GPIOX */
 338                           "WIFI_SD_D0", "WIFI_SD_D1", "WIFI_SD_D2",
 339                           "WIFI_SD_D3", "BTPCM_DOUT", "BTPCM_DIN",
 340                           "BTPCM_SYNC", "BTPCM_CLK", "WIFI_SD_CLK",
 341                           "WIFI_SD_CMD", "WIFI_32K", "WIFI_PWREN",
 342                           "UART_B_TX", "UART_B_RX", "UART_B_CTS_N",
 343                           "UART_B_RTS_N", "BT_EN", "WIFI_WAKE_HOST",
 344                           /* Bank GPIOY */
 345                           "", "", "", "", "", "", "", "", "", "",
 346                           "", "",
 347                           /* Bank GPIODV */
 348                           "VCCK_PWM_C", "I2C_SDA_A", "I2C_SCL_A",
 349                           "I2C_SDA_B", "I2C_SCL_B", "VDDEE_PWM_D",
 350                           "VDDEE_PWM 3V3_5V_EN",
 351                           /* Bank GPIOH */
 352                           "HDMI_HPD", "HDMI_I2C_SDA", "HDMI_I2C_SCL",
 353                           "RMII_IRQ", "RMII_RST#", "RMII_TXD1",
 354                           "RMII_TXD0", "AV_select_1", "AV_select_2",
 355                           "MCU_Control_S",
 356                           /* Bank CARD */
 357                           "SD_D1_B", "SD_D0_B", "SD_CLK_8726MX",
 358                           "SD_CMD_8726MX", "SD_D3_B", "SD_D2_B",
 359                           "CARD_EN_DET (CARD_DET)",
 360                           /* Bank BOOT */
 361                           "NAND_D0 (EMMC)", "NAND_D1 (EMMC)",
 362                           "NAND_D2 (EMMC)", "NAND_D3 (EMMC)",
 363                           "NAND_D4 (EMMC)", "NAND_D5 (EMMC)",
 364                           "NAND_D6 (EMMC)", "NAND_D7 (EMMC)",
 365                           "NAND_CS1 (EMMC)", "NAND_CS2 iNAND_RS1 (EMMC)",
 366                           "NAND_nR/B iNAND_CMD (EMMC)", "NAND_ALE (EMMC)",
 367                           "NAND_CLE (EMMC)", "nRE_S1 NAND_nRE (EMMC)",
 368                           "nWE_S1 NAND_nWE (EMMC)",  "", "", "SPI_CS",
 369                           /* Bank DIF */
 370                           "RMII_RXD1", "RMII_RXD0", "RMII_CRS_DV",
 371                           "RMII_50M_IN", "GPIODIF_4", "GPIODIF_5",
 372                           "RMII_TXEN", "CPUETH_25MOUT", "RMII_MDC",
 373                           "RMII_MDIO";
 374 };
 375
 376 &pwm_cd {
 377         status = "okay";
 378         pinctrl-0 = <&pwm_c1_pins>, <&pwm_d_pins>;
 379         pinctrl-names = "default";
 380         clocks = <&xtal>, <&xtal>;
 381         clock-names = "clkin0", "clkin1";
 382 };
 383
 384 &rtc {
 385         status = "okay";
 386         clocks = <&rtc32k_xtal>;
 387         vdd-supply = <&vcc_rtc>;
 388 };
 389
 390 /* exposed through the pin headers labeled "URDUG1" on the top of the PCB */
 391 &uart_AO {
 392         status = "okay";
 393         pinctrl-0 = <&uart_ao_a_pins>;
 394         pinctrl-names = "default";
 395 };
 396
 397 /*
 398  * connected to the Bluetooth part of the RTL8723BS SDIO wifi / Bluetooth
 399  * combo chip. This is only available on the variant with 2GB RAM.
 400  */
 401 &uart_B {
 402         status = "okay";
 403         pinctrl-0 = <&uart_b0_pins>, <&uart_b0_cts_rts_pins>;
 404         pinctrl-names = "default";
 405         uart-has-rtscts;
 406 };
 407
 408 &usb1 {
 409         status = "okay";
 410         vbus-supply = <&usb_vbus>;
 411 };
 412
 413 &usb1_phy {
 414         status = "okay";
 415 };