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         emmc_pwrseq: emmc-pwrseq {
  31                 compatible = "mmc-pwrseq-emmc";
  32                 reset-gpios = <&gpio BOOT_9 GPIO_ACTIVE_LOW>;
  33         };
  34
  35         gpio-keys {
  36                 compatible = "gpio-keys-polled";
  37                 #address-cells = <1>;
  38                 #size-cells = <0>;
  39                 poll-interval = <100>;
  40
  41                 pal-switch {
  42                         label = "pal";
  43                         linux,input-type = <EV_SW>;
  44                         linux,code = <KEY_SWITCHVIDEOMODE>;
  45                         gpios = <&gpio GPIOH_7 GPIO_ACTIVE_LOW>;
  46                 };
  47
  48                 ntsc-switch {
  49                         label = "ntsc";
  50                         linux,input-type = <EV_SW>;
  51                         linux,code = <KEY_SWITCHVIDEOMODE>;
  52                         gpios = <&gpio GPIOH_8 GPIO_ACTIVE_HIGH>;
  53                 };
  54
  55                 power-button {
  56                         label = "power";
  57                         linux,code = <KEY_POWER>;
  58                         gpios = <&gpio GPIOH_9 GPIO_ACTIVE_LOW>;
  59                 };
  60         };
  61
  62         gpio-poweroff {
  63                 compatible = "gpio-poweroff";
  64                 /*
  65                  * shutdown is managed by the EC (embedded micro-controller)
  66                  * which is configured through GPIOAO_2 (poweroff GPIO) and
  67                  * GPIOAO_7 (power LED, which has to go LOW as well).
  68                  */
  69                 gpios = <&gpio_ao GPIOAO_2 GPIO_ACTIVE_LOW>;
  70                 timeout-ms = <20000>;
  71         };
  72
  73         iio-hwmon {
  74                 compatible = "iio-hwmon";
  75                 io-channels = <&saradc 8>;
  76         };
  77
  78         leds {
  79                 compatible = "gpio-leds";
  80
  81                 power {
  82                         label = "ec100:red:power";
  83                         /*
  84                          * Needs to go LOW (together with the poweroff GPIO)
  85                          * during shutdown to allow the EC (embedded
  86                          * micro-controller) to shutdown the system. Setting
  87                          * the output to LOW signals the EC to start a
  88                          * "breathing"/pulsing effect until the power is fully
  89                          * turned off.
  90                          */
  91                         gpios = <&gpio_ao GPIOAO_7 GPIO_ACTIVE_HIGH>;
  92                         default-state = "on";
  93                 };
  94         };
  95
  96         rtc32k_xtal: rtc32k-xtal-clk {
  97                 /* X2 in the schematics */
  98                 compatible = "fixed-clock";
  99                 clock-frequency = <32768>;
 100                 clock-output-names = "RTC32K";
 101                 #clock-cells = <0>;
 102         };
 103
 104         usb_vbus: regulator-usb-vbus {
 105                 /*
 106                  * Silergy SY6288CCAC-GP 2A Power Distribution Switch.
 107                  */
 108                 compatible = "regulator-fixed";
 109
 110                 regulator-name = "USB_VBUS";
 111
 112                 regulator-min-microvolt = <5000000>;
 113                 regulator-max-microvolt = <5000000>;
 114
 115                 vin-supply = <&vcc_5v>;
 116
 117                 /*
 118                  * signal name from the schematics: USB_PWR_EN
 119                  */
 120                 gpio = <&gpio_ao GPIOAO_5 GPIO_ACTIVE_HIGH>;
 121                 enable-active-high;
 122         };
 123
 124         vcc_5v: regulator-vcc5v {
 125                 /*
 126                  * supplied by the main power input which called PWR_5V_STB
 127                  * in the schematics
 128                  */
 129                 compatible = "regulator-fixed";
 130
 131                 regulator-name = "VCC5V";
 132
 133                 regulator-min-microvolt = <5000000>;
 134                 regulator-max-microvolt = <5000000>;
 135
 136                 /*
 137                  * signal name from the schematics: 3V3_5V_EN
 138                  */
 139                 gpio = <&gpio GPIODV_29 GPIO_ACTIVE_LOW>;
 140
 141                 regulator-boot-on;
 142                 regulator-always-on;
 143         };
 144
 145         vcck: regulator-vcck {
 146                 /*
 147                  * Silergy SY8089AAC-GP 2A continuous, 3A peak, 1MHz
 148                  * Synchronous Step Down Regulator.
 149                  */
 150                 compatible = "pwm-regulator";
 151
 152                 regulator-name = "VCCK";
 153                 regulator-min-microvolt = <860000>;
 154                 regulator-max-microvolt = <1140000>;
 155
 156                 vin-supply = <&vcc_5v>;
 157
 158                 pwms = <&pwm_cd 0 1148 0>;
 159                 pwm-dutycycle-range = <100 0>;
 160
 161                 regulator-boot-on;
 162                 regulator-always-on;
 163         };
 164
 165         vcc_1v8: regulator-vcc1v8 {
 166                 /*
 167                  * ABLIC S-1339D18-M5001-GP
 168                  */
 169                 compatible = "regulator-fixed";
 170
 171                 regulator-name = "VCC1V8";
 172                 regulator-min-microvolt = <1800000>;
 173                 regulator-max-microvolt = <1800000>;
 174
 175                 vin-supply = <&vcc_3v3>;
 176         };
 177
 178         vcc_3v3: regulator-vcc3v3 {
 179                 /*
 180                  * Silergy SY8089AAC-GP 2A continuous, 3A peak, 1MHz
 181                  * Synchronous Step Down Regulator. Also called
 182                  * VDDIO_AO3.3V in the schematics.
 183                  */
 184                 compatible = "regulator-fixed";
 185
 186                 regulator-name = "VCC3V3";
 187                 regulator-min-microvolt = <3300000>;
 188                 regulator-max-microvolt = <3300000>;
 189
 190                 vin-supply = <&vcc_5v>;
 191         };
 192
 193         vcc_ddr3: regulator-vcc-ddr3 {
 194                 /*
 195                  * Silergy SY8089AAC-GP 2A continuous, 3A peak, 1MHz
 196                  * Synchronous Step Down Regulator. Also called
 197                  * DDR3_1.5V in the schematics.
 198                  */
 199                 compatible = "regulator-fixed";
 200
 201                 regulator-name = "VCC_DDR3_1V5";
 202                 regulator-min-microvolt = <1500000>;
 203                 regulator-max-microvolt = <1500000>;
 204
 205                 vin-supply = <&vcc_5v>;
 206
 207                 regulator-boot-on;
 208                 regulator-always-on;
 209         };
 210
 211         vcc_rtc: regulator-vcc-rtc {
 212                 /*
 213                  * Global Mixed-mode Technology Inc. G918T12U-GP
 214                  */
 215                 compatible = "regulator-fixed";
 216
 217                 regulator-name = "VCC_RTC";
 218                 regulator-min-microvolt = <900000>;
 219                 regulator-max-microvolt = <900000>;
 220
 221                 /*
 222                  * When the board is powered then the input is VCC3V3,
 223                  * otherwise power is taken from the coin cell battery.
 224                  */
 225                 vin-supply = <&vcc_3v3>;
 226         };
 227
 228         vddee: regulator-vddee {
 229                 /*
 230                  * Silergy SY8089AAC-GP 2A continuous, 3A peak, 1MHz
 231                  * Synchronous Step Down Regulator. Also called VDDAO
 232                  * in a part of the schematics.
 233                  */
 234                 compatible = "pwm-regulator";
 235
 236                 regulator-name = "VDDEE";
 237                 regulator-min-microvolt = <860000>;
 238                 regulator-max-microvolt = <1140000>;
 239
 240                 vin-supply = <&vcc_5v>;
 241
 242                 pwms = <&pwm_cd 1 1148 0>;
 243                 pwm-dutycycle-range = <100 0>;
 244
 245                 regulator-boot-on;
 246                 regulator-always-on;
 247         };
 248 };
 249
 250 &cpu0 {
 251         cpu-supply = <&vcck>;
 252 };
 253
 254 &ethmac {
 255         status = "okay";
 256
 257         pinctrl-0 = <&eth_rmii_pins>;
 258         pinctrl-names = "default";
 259
 260         phy-handle = <&eth_phy0>;
 261         phy-mode = "rmii";
 262
 263         mdio {
 264                 compatible = "snps,dwmac-mdio";
 265                 #address-cells = <1>;
 266                 #size-cells = <0>;
 267
 268                 eth_phy0: ethernet-phy@0 {
 269                         /* IC Plus IP101A/G (0x02430c54) */
 270                         reg = <0>;
 271
 272                         reset-assert-us = <10000>;
 273                         reset-deassert-us = <10000>;
 274                         reset-gpios = <&gpio GPIOH_4 GPIO_ACTIVE_LOW>;
 275
 276                         icplus,select-interrupt;
 277                         interrupt-parent = <&gpio_intc>;
 278                         /* GPIOH_3 */
 279                         interrupts = <17 IRQ_TYPE_LEVEL_LOW>;
 280                 };
 281         };
 282 };
 283
 284 &i2c_A {
 285         status = "okay";
 286         pinctrl-0 = <&i2c_a_pins>;
 287         pinctrl-names = "default";
 288
 289         rt5640: codec@1c {
 290                 compatible = "realtek,rt5640";
 291                 reg = <0x1c>;
 292                 interrupt-parent = <&gpio_intc>;
 293                 interrupts = <13 IRQ_TYPE_EDGE_BOTH>; /* GPIOAO_13 */
 294                 realtek,in1-differential;
 295         };
 296 };
 297
 298 &mali {
 299         mali-supply = <&vddee>;
 300 };
 301
 302 &saradc {
 303         status = "okay";
 304         vref-supply = <&vcc_1v8>;
 305 };
 306
 307 &sdhc {
 308         status = "okay";
 309
 310         pinctrl-0 = <&sdxc_c_pins>;
 311         pinctrl-names = "default";
 312
 313         bus-width = <8>;
 314         max-frequency = <50000000>;
 315
 316         cap-mmc-highspeed;
 317         disable-wp;
 318         non-removable;
 319         no-sdio;
 320
 321         mmc-pwrseq = <&emmc_pwrseq>;
 322
 323         vmmc-supply = <&vcc_3v3>;
 324         vqmmc-supply = <&vcc_3v3>;
 325 };
 326
 327 &sdio {
 328         status = "okay";
 329
 330         pinctrl-0 = <&sd_b_pins>;
 331         pinctrl-names = "default";
 332
 333         /* SD card */
 334         sd_card_slot: slot@1 {
 335                 compatible = "mmc-slot";
 336                 reg = <1>;
 337                 status = "okay";
 338
 339                 bus-width = <4>;
 340                 no-sdio;
 341                 cap-mmc-highspeed;
 342                 cap-sd-highspeed;
 343                 disable-wp;
 344
 345                 cd-gpios = <&gpio CARD_6 GPIO_ACTIVE_LOW>;
 346
 347                 vmmc-supply = <&vcc_3v3>;
 348         };
 349 };
 350
 351 &gpio_ao {
 352         gpio-line-names = "Linux_TX", "Linux_RX",
 353                           "SLP_S5_N", "USB2_OC_FLAG#",
 354                           "HUB_RST", "USB_PWR_EN",
 355                           "I2S_IN", "SLP_S1_N",
 356                           "TCK", "TMS", "TDI", "TDO",
 357                           "HDMI_CEC", "5640_IRQ",
 358                           "MUTE", "S805_TEST#";
 359 };
 360
 361 &gpio {
 362         gpio-line-names = /* Bank GPIOX */
 363                           "WIFI_SD_D0", "WIFI_SD_D1", "WIFI_SD_D2",
 364                           "WIFI_SD_D3", "BTPCM_DOUT", "BTPCM_DIN",
 365                           "BTPCM_SYNC", "BTPCM_CLK", "WIFI_SD_CLK",
 366                           "WIFI_SD_CMD", "WIFI_32K", "WIFI_PWREN",
 367                           "UART_B_TX", "UART_B_RX", "UART_B_CTS_N",
 368                           "UART_B_RTS_N", "BT_EN", "WIFI_WAKE_HOST",
 369                           /* Bank GPIOY */
 370                           "", "", "", "", "", "", "", "", "", "",
 371                           "", "",
 372                           /* Bank GPIODV */
 373                           "VCCK_PWM_C", "I2C_SDA_A", "I2C_SCL_A",
 374                           "I2C_SDA_B", "I2C_SCL_B", "VDDEE_PWM_D",
 375                           "VDDEE_PWM 3V3_5V_EN",
 376                           /* Bank GPIOH */
 377                           "HDMI_HPD", "HDMI_I2C_SDA", "HDMI_I2C_SCL",
 378                           "RMII_IRQ", "RMII_RST#", "RMII_TXD1",
 379                           "RMII_TXD0", "AV_select_1", "AV_select_2",
 380                           "MCU_Control_S",
 381                           /* Bank CARD */
 382                           "SD_D1_B", "SD_D0_B", "SD_CLK_8726MX",
 383                           "SD_CMD_8726MX", "SD_D3_B", "SD_D2_B",
 384                           "CARD_EN_DET (CARD_DET)",
 385                           /* Bank BOOT */
 386                           "NAND_D0 (EMMC)", "NAND_D1 (EMMC)",
 387                           "NAND_D2 (EMMC)", "NAND_D3 (EMMC)",
 388                           "NAND_D4 (EMMC)", "NAND_D5 (EMMC)",
 389                           "NAND_D6 (EMMC)", "NAND_D7 (EMMC)",
 390                           "NAND_CS1 (EMMC)", "NAND_CS2 iNAND_RS1 (EMMC)",
 391                           "NAND_nR/B iNAND_CMD (EMMC)", "NAND_ALE (EMMC)",
 392                           "NAND_CLE (EMMC)", "nRE_S1 NAND_nRE (EMMC)",
 393                           "nWE_S1 NAND_nWE (EMMC)",  "", "", "SPI_CS",
 394                           /* Bank DIF */
 395                           "RMII_RXD1", "RMII_RXD0", "RMII_CRS_DV",
 396                           "RMII_50M_IN", "GPIODIF_4", "GPIODIF_5",
 397                           "RMII_TXEN", "CPUETH_25MOUT", "RMII_MDC",
 398                           "RMII_MDIO";
 399 };
 400
 401 &pwm_cd {
 402         status = "okay";
 403         pinctrl-0 = <&pwm_c1_pins>, <&pwm_d_pins>;
 404         pinctrl-names = "default";
 405         clocks = <&xtal>, <&xtal>;
 406         clock-names = "clkin0", "clkin1";
 407 };
 408
 409 &rtc {
 410         status = "okay";
 411         clocks = <&rtc32k_xtal>;
 412         vdd-supply = <&vcc_rtc>;
 413 };
 414
 415 /* exposed through the pin headers labeled "URDUG1" on the top of the PCB */
 416 &uart_AO {
 417         status = "okay";
 418         pinctrl-0 = <&uart_ao_a_pins>;
 419         pinctrl-names = "default";
 420 };
 421
 422 /*
 423  * connected to the Bluetooth part of the RTL8723BS SDIO wifi / Bluetooth
 424  * combo chip. This is only available on the variant with 2GB RAM.
 425  */
 426 &uart_B {
 427         status = "okay";
 428         pinctrl-0 = <&uart_b0_pins>, <&uart_b0_cts_rts_pins>;
 429         pinctrl-names = "default";
 430         uart-has-rtscts;
 431 };
 432
 433 &usb1 {
 434         status = "okay";
 435         vbus-supply = <&usb_vbus>;
 436 };
 437
 438 &usb1_phy {
 439         status = "okay";
 440 };