0001 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
0002 /*
0003 * Copyright (c) 2018 Martin Blumenstingl <martin.blumenstingl@googlemail.com>.
0004 */
0005
0006 /dts-v1/;
0007
0008 #include <dt-bindings/gpio/gpio.h>
0009 #include <dt-bindings/input/input.h>
0010
0011 #include "meson8b.dtsi"
0012
0013 / {
0014 model = "Endless Computers Endless Mini";
0015 compatible = "endless,ec100", "amlogic,meson8b";
0016
0017 aliases {
0018 serial0 = &uart_AO;
0019 };
0020
0021 chosen {
0022 stdout-path = "serial0:115200n8";
0023 };
0024
0025 memory {
0026 device_type = "memory";
0027 reg = <0x40000000 0x40000000>;
0028 };
0029
0030 emmc_pwrseq: emmc-pwrseq {
0031 compatible = "mmc-pwrseq-emmc";
0032 reset-gpios = <&gpio BOOT_9 GPIO_ACTIVE_LOW>;
0033 };
0034
0035 gpio-keys {
0036 compatible = "gpio-keys-polled";
0037 #address-cells = <1>;
0038 #size-cells = <0>;
0039 poll-interval = <100>;
0040
0041 pal-switch {
0042 label = "pal";
0043 linux,input-type = <EV_SW>;
0044 linux,code = <KEY_SWITCHVIDEOMODE>;
0045 gpios = <&gpio GPIOH_7 GPIO_ACTIVE_LOW>;
0046 };
0047
0048 ntsc-switch {
0049 label = "ntsc";
0050 linux,input-type = <EV_SW>;
0051 linux,code = <KEY_SWITCHVIDEOMODE>;
0052 gpios = <&gpio GPIOH_8 GPIO_ACTIVE_HIGH>;
0053 };
0054
0055 power-button {
0056 label = "power";
0057 linux,code = <KEY_POWER>;
0058 gpios = <&gpio GPIOH_9 GPIO_ACTIVE_LOW>;
0059 };
0060 };
0061
0062 gpio-poweroff {
0063 compatible = "gpio-poweroff";
0064 /*
0065 * shutdown is managed by the EC (embedded micro-controller)
0066 * which is configured through GPIOAO_2 (poweroff GPIO) and
0067 * GPIOAO_7 (power LED, which has to go LOW as well).
0068 */
0069 gpios = <&gpio_ao GPIOAO_2 GPIO_ACTIVE_LOW>;
0070 timeout-ms = <20000>;
0071 };
0072
0073 leds {
0074 compatible = "gpio-leds";
0075
0076 power {
0077 label = "ec100:red:power";
0078 /*
0079 * Needs to go LOW (together with the poweroff GPIO)
0080 * during shutdown to allow the EC (embedded
0081 * micro-controller) to shutdown the system. Setting
0082 * the output to LOW signals the EC to start a
0083 * "breathing"/pulsing effect until the power is fully
0084 * turned off.
0085 */
0086 gpios = <&gpio_ao GPIOAO_7 GPIO_ACTIVE_HIGH>;
0087 default-state = "on";
0088 };
0089 };
0090
0091 rtc32k_xtal: rtc32k-xtal-clk {
0092 /* X2 in the schematics */
0093 compatible = "fixed-clock";
0094 clock-frequency = <32768>;
0095 clock-output-names = "RTC32K";
0096 #clock-cells = <0>;
0097 };
0098
0099 sound {
0100 compatible = "amlogic,gx-sound-card";
0101 model = "M8B-EC100";
0102
0103 assigned-clocks = <&clkc CLKID_MPLL0>,
0104 <&clkc CLKID_MPLL1>,
0105 <&clkc CLKID_MPLL2>;
0106 assigned-clock-rates = <270950400>,
0107 <294912000>,
0108 <393216000>;
0109
0110 dai-link-0 {
0111 sound-dai = <&aiu AIU_CPU CPU_I2S_FIFO>;
0112 };
0113
0114 dai-link-1 {
0115 sound-dai = <&aiu AIU_CPU CPU_I2S_ENCODER>;
0116 dai-format = "i2s";
0117 mclk-fs = <256>;
0118
0119 codec-0 {
0120 sound-dai = <&rt5640>;
0121 };
0122 };
0123 };
0124
0125 usb_vbus: regulator-usb-vbus {
0126 /*
0127 * Silergy SY6288CCAC-GP 2A Power Distribution Switch.
0128 */
0129 compatible = "regulator-fixed";
0130
0131 regulator-name = "USB_VBUS";
0132
0133 regulator-min-microvolt = <5000000>;
0134 regulator-max-microvolt = <5000000>;
0135
0136 vin-supply = <&vcc_5v>;
0137
0138 /*
0139 * signal name from the schematics: USB_PWR_EN
0140 */
0141 gpio = <&gpio_ao GPIOAO_5 GPIO_ACTIVE_HIGH>;
0142 enable-active-high;
0143 };
0144
0145 vcc_5v: regulator-vcc5v {
0146 /*
0147 * supplied by the main power input which called PWR_5V_STB
0148 * in the schematics
0149 */
0150 compatible = "regulator-fixed";
0151
0152 regulator-name = "VCC5V";
0153
0154 regulator-min-microvolt = <5000000>;
0155 regulator-max-microvolt = <5000000>;
0156
0157 /*
0158 * signal name from the schematics: 3V3_5V_EN
0159 */
0160 gpio = <&gpio GPIODV_29 GPIO_ACTIVE_LOW>;
0161
0162 regulator-boot-on;
0163 regulator-always-on;
0164 };
0165
0166 vcck: regulator-vcck {
0167 /*
0168 * Silergy SY8089AAC-GP 2A continuous, 3A peak, 1MHz
0169 * Synchronous Step Down Regulator.
0170 */
0171 compatible = "pwm-regulator";
0172
0173 regulator-name = "VCCK";
0174 regulator-min-microvolt = <860000>;
0175 regulator-max-microvolt = <1140000>;
0176
0177 pwm-supply = <&vcc_5v>;
0178
0179 pwms = <&pwm_cd 0 1148 0>;
0180 pwm-dutycycle-range = <100 0>;
0181
0182 regulator-boot-on;
0183 regulator-always-on;
0184 };
0185
0186 vcc_1v8: regulator-vcc1v8 {
0187 /*
0188 * ABLIC S-1339D18-M5001-GP
0189 */
0190 compatible = "regulator-fixed";
0191
0192 regulator-name = "VCC1V8";
0193 regulator-min-microvolt = <1800000>;
0194 regulator-max-microvolt = <1800000>;
0195
0196 vin-supply = <&vcc_3v3>;
0197 };
0198
0199 vcc_3v3: regulator-vcc3v3 {
0200 /*
0201 * Silergy SY8089AAC-GP 2A continuous, 3A peak, 1MHz
0202 * Synchronous Step Down Regulator. Also called
0203 * VDDIO_AO3.3V in the schematics.
0204 */
0205 compatible = "regulator-fixed";
0206
0207 regulator-name = "VCC3V3";
0208 regulator-min-microvolt = <3300000>;
0209 regulator-max-microvolt = <3300000>;
0210
0211 vin-supply = <&vcc_5v>;
0212 };
0213
0214 vcc_ddr3: regulator-vcc-ddr3 {
0215 /*
0216 * Silergy SY8089AAC-GP 2A continuous, 3A peak, 1MHz
0217 * Synchronous Step Down Regulator. Also called
0218 * DDR3_1.5V in the schematics.
0219 */
0220 compatible = "regulator-fixed";
0221
0222 regulator-name = "VCC_DDR3_1V5";
0223 regulator-min-microvolt = <1500000>;
0224 regulator-max-microvolt = <1500000>;
0225
0226 vin-supply = <&vcc_5v>;
0227
0228 regulator-boot-on;
0229 regulator-always-on;
0230 };
0231
0232 vcc_rtc: regulator-vcc-rtc {
0233 /*
0234 * Global Mixed-mode Technology Inc. G918T12U-GP
0235 */
0236 compatible = "regulator-fixed";
0237
0238 regulator-name = "VCC_RTC";
0239 regulator-min-microvolt = <900000>;
0240 regulator-max-microvolt = <900000>;
0241
0242 /*
0243 * When the board is powered then the input is VCC3V3,
0244 * otherwise power is taken from the coin cell battery.
0245 */
0246 vin-supply = <&vcc_3v3>;
0247 };
0248
0249 vddee: regulator-vddee {
0250 /*
0251 * Silergy SY8089AAC-GP 2A continuous, 3A peak, 1MHz
0252 * Synchronous Step Down Regulator. Also called VDDAO
0253 * in a part of the schematics.
0254 */
0255 compatible = "pwm-regulator";
0256
0257 regulator-name = "VDDEE";
0258 regulator-min-microvolt = <860000>;
0259 regulator-max-microvolt = <1140000>;
0260
0261 pwm-supply = <&vcc_5v>;
0262
0263 pwms = <&pwm_cd 1 1148 0>;
0264 pwm-dutycycle-range = <100 0>;
0265
0266 regulator-boot-on;
0267 regulator-always-on;
0268 };
0269 };
0270
0271 &aiu {
0272 status = "okay";
0273
0274 pinctrl-0 = <&i2s_am_clk_pins>, <&i2s_out_ao_clk_pins>,
0275 <&i2s_out_lr_clk_pins>, <&i2s_out_ch01_ao_pins>;
0276 pinctrl-names = "default";
0277 };
0278
0279 &cpu0 {
0280 cpu-supply = <&vcck>;
0281 };
0282
0283 ðmac {
0284 status = "okay";
0285
0286 pinctrl-0 = <ð_rmii_pins>;
0287 pinctrl-names = "default";
0288
0289 phy-handle = <ð_phy0>;
0290 phy-mode = "rmii";
0291
0292 mdio {
0293 compatible = "snps,dwmac-mdio";
0294 #address-cells = <1>;
0295 #size-cells = <0>;
0296
0297 eth_phy0: ethernet-phy@0 {
0298 /* IC Plus IP101A/G (0x02430c54) */
0299 reg = <0>;
0300
0301 reset-assert-us = <10000>;
0302 reset-deassert-us = <10000>;
0303 reset-gpios = <&gpio GPIOH_4 GPIO_ACTIVE_LOW>;
0304
0305 icplus,select-interrupt;
0306 interrupt-parent = <&gpio_intc>;
0307 /* GPIOH_3 */
0308 interrupts = <17 IRQ_TYPE_LEVEL_LOW>;
0309 };
0310 };
0311 };
0312
0313 &i2c_A {
0314 status = "okay";
0315 pinctrl-0 = <&i2c_a_pins>;
0316 pinctrl-names = "default";
0317
0318 rt5640: codec@1c {
0319 compatible = "realtek,rt5640";
0320
0321 reg = <0x1c>;
0322
0323 #sound-dai-cells = <0>;
0324
0325 interrupt-parent = <&gpio_intc>;
0326 interrupts = <13 IRQ_TYPE_EDGE_BOTH>; /* GPIOAO_13 */
0327
0328 /*
0329 * TODO: realtek,ldo1-en-gpios is connected to GPIO_BSD_EN.
0330 * We currently cannot configure this pin correctly.
0331 * Luckily for us it's in the "right" state by default.
0332 */
0333 realtek,in1-differential;
0334 };
0335 };
0336
0337 &mali {
0338 mali-supply = <&vddee>;
0339 };
0340
0341 &saradc {
0342 status = "okay";
0343 vref-supply = <&vcc_1v8>;
0344 };
0345
0346 &sdhc {
0347 status = "okay";
0348
0349 pinctrl-0 = <&sdxc_c_pins>;
0350 pinctrl-names = "default";
0351
0352 bus-width = <8>;
0353 max-frequency = <50000000>;
0354
0355 cap-mmc-highspeed;
0356 disable-wp;
0357 non-removable;
0358 no-sdio;
0359
0360 mmc-pwrseq = <&emmc_pwrseq>;
0361
0362 vmmc-supply = <&vcc_3v3>;
0363 vqmmc-supply = <&vcc_3v3>;
0364 };
0365
0366 &sdio {
0367 status = "okay";
0368
0369 pinctrl-0 = <&sd_b_pins>;
0370 pinctrl-names = "default";
0371
0372 /* SD card */
0373 sd_card_slot: slot@1 {
0374 compatible = "mmc-slot";
0375 reg = <1>;
0376 status = "okay";
0377
0378 bus-width = <4>;
0379 no-sdio;
0380 cap-mmc-highspeed;
0381 cap-sd-highspeed;
0382 disable-wp;
0383
0384 cd-gpios = <&gpio CARD_6 GPIO_ACTIVE_LOW>;
0385
0386 vmmc-supply = <&vcc_3v3>;
0387 };
0388 };
0389
0390 &gpio_ao {
0391 gpio-line-names = "Linux_TX", "Linux_RX",
0392 "SLP_S5_N", "USB2_OC_FLAG#",
0393 "HUB_RST", "USB_PWR_EN",
0394 "I2S_IN", "SLP_S1_N",
0395 "TCK", "TMS", "TDI", "TDO",
0396 "HDMI_CEC", "5640_IRQ",
0397 "MUTE", "S805_TEST#";
0398 };
0399
0400 &gpio {
0401 gpio-line-names = /* Bank GPIOX */
0402 "WIFI_SD_D0", "WIFI_SD_D1", "WIFI_SD_D2",
0403 "WIFI_SD_D3", "BTPCM_DOUT", "BTPCM_DIN",
0404 "BTPCM_SYNC", "BTPCM_CLK", "WIFI_SD_CLK",
0405 "WIFI_SD_CMD", "WIFI_32K", "WIFI_PWREN",
0406 "UART_B_TX", "UART_B_RX", "UART_B_CTS_N",
0407 "UART_B_RTS_N", "BT_EN", "WIFI_WAKE_HOST",
0408 /* Bank GPIOY */
0409 "", "", "", "", "", "", "", "", "", "",
0410 "", "",
0411 /* Bank GPIODV */
0412 "VCCK_PWM_C", "I2C_SDA_A", "I2C_SCL_A",
0413 "I2C_SDA_B", "I2C_SCL_B", "VDDEE_PWM_D",
0414 "VDDEE_PWM 3V3_5V_EN",
0415 /* Bank GPIOH */
0416 "HDMI_HPD", "HDMI_I2C_SDA", "HDMI_I2C_SCL",
0417 "RMII_IRQ", "RMII_RST#", "RMII_TXD1",
0418 "RMII_TXD0", "AV_select_1", "AV_select_2",
0419 "MCU_Control_S",
0420 /* Bank CARD */
0421 "SD_D1_B", "SD_D0_B", "SD_CLK_8726MX",
0422 "SD_CMD_8726MX", "SD_D3_B", "SD_D2_B",
0423 "CARD_EN_DET (CARD_DET)",
0424 /* Bank BOOT */
0425 "NAND_D0 (EMMC)", "NAND_D1 (EMMC)",
0426 "NAND_D2 (EMMC)", "NAND_D3 (EMMC)",
0427 "NAND_D4 (EMMC)", "NAND_D5 (EMMC)",
0428 "NAND_D6 (EMMC)", "NAND_D7 (EMMC)",
0429 "NAND_CS1 (EMMC)", "NAND_CS2 iNAND_RS1 (EMMC)",
0430 "NAND_nR/B iNAND_CMD (EMMC)", "NAND_ALE (EMMC)",
0431 "NAND_CLE (EMMC)", "nRE_S1 NAND_nRE (EMMC)",
0432 "nWE_S1 NAND_nWE (EMMC)", "", "", "SPI_CS",
0433 /* Bank DIF */
0434 "RMII_RXD1", "RMII_RXD0", "RMII_CRS_DV",
0435 "RMII_50M_IN", "GPIODIF_4", "GPIODIF_5",
0436 "RMII_TXEN", "CPUETH_25MOUT", "RMII_MDC",
0437 "RMII_MDIO";
0438 };
0439
0440 &pwm_cd {
0441 status = "okay";
0442 pinctrl-0 = <&pwm_c1_pins>, <&pwm_d_pins>;
0443 pinctrl-names = "default";
0444 clocks = <&xtal>, <&xtal>;
0445 clock-names = "clkin0", "clkin1";
0446 };
0447
0448 &rtc {
0449 status = "okay";
0450 clocks = <&rtc32k_xtal>;
0451 vdd-supply = <&vcc_rtc>;
0452 };
0453
0454 /* exposed through the pin headers labeled "URDUG1" on the top of the PCB */
0455 &uart_AO {
0456 status = "okay";
0457 pinctrl-0 = <&uart_ao_a_pins>;
0458 pinctrl-names = "default";
0459 };
0460
0461 /*
0462 * connected to the Bluetooth part of the RTL8723BS SDIO wifi / Bluetooth
0463 * combo chip. This is only available on the variant with 2GB RAM.
0464 */
0465 &uart_B {
0466 status = "okay";
0467 pinctrl-0 = <&uart_b0_pins>, <&uart_b0_cts_rts_pins>;
0468 pinctrl-names = "default";
0469 uart-has-rtscts;
0470 };
0471
0472 &usb1 {
0473 status = "okay";
0474 vbus-supply = <&usb_vbus>;
0475 };
0476
0477 &usb1_phy {
0478 status = "okay";
0479 };
