1/* 2 * Copyright (c) 2017 Martin Blumenstingl <martin.blumenstingl@googlemail.com>. 3 * Copyright (c) 2017 BayLibre, SAS 4 * Author: Neil Armstrong <narmstrong@baylibre.com> 5 * 6 * SPDX-License-Identifier: (GPL-2.0+ OR MIT) 7 */ 8 9/dts-v1/; 10 11#include <dt-bindings/input/input.h> 12#include <dt-bindings/thermal/thermal.h> 13 14#include "meson-gxm.dtsi" 15 16/ { 17 compatible = "khadas,vim2", "amlogic,s912", "amlogic,meson-gxm"; 18 model = "Khadas VIM2"; 19 20 aliases { 21 serial0 = &uart_AO; 22 serial1 = &uart_A; 23 serial2 = &uart_AO_B; 24 }; 25 26 chosen { 27 stdout-path = "serial0:115200n8"; 28 }; 29 30 memory@0 { 31 device_type = "memory"; 32 reg = <0x0 0x0 0x0 0x80000000>; 33 }; 34 35 adc-keys { 36 compatible = "adc-keys"; 37 io-channels = <&saradc 0>; 38 io-channel-names = "buttons"; 39 keyup-threshold-microvolt = <1710000>; 40 41 button-function { 42 label = "Function"; 43 linux,code = <KEY_FN>; 44 press-threshold-microvolt = <10000>; 45 }; 46 }; 47 48 emmc_pwrseq: emmc-pwrseq { 49 compatible = "mmc-pwrseq-emmc"; 50 reset-gpios = <&gpio BOOT_9 GPIO_ACTIVE_LOW>; 51 }; 52 53 gpio_fan: gpio-fan { 54 compatible = "gpio-fan"; 55 gpios = <&gpio GPIODV_14 GPIO_ACTIVE_HIGH 56 &gpio GPIODV_15 GPIO_ACTIVE_HIGH>; 57 /* Dummy RPM values since fan is optional */ 58 gpio-fan,speed-map = <0 0 59 1 1 60 2 2 61 3 3>; 62 cooling-min-level = <0>; 63 cooling-max-level = <3>; 64 #cooling-cells = <2>; 65 }; 66 67 gpio-keys-polled { 68 compatible = "gpio-keys-polled"; 69 #address-cells = <1>; 70 #size-cells = <0>; 71 poll-interval = <100>; 72 73 button@0 { 74 label = "power"; 75 linux,code = <KEY_POWER>; 76 gpios = <&gpio_ao GPIOAO_2 GPIO_ACTIVE_LOW>; 77 }; 78 }; 79 80 hdmi-connector { 81 compatible = "hdmi-connector"; 82 type = "a"; 83 84 port { 85 hdmi_connector_in: endpoint { 86 remote-endpoint = <&hdmi_tx_tmds_out>; 87 }; 88 }; 89 }; 90 91 pwmleds { 92 compatible = "pwm-leds"; 93 94 power { 95 label = "vim:red:power"; 96 pwms = <&pwm_AO_ab 1 7812500 0>; 97 max-brightness = <255>; 98 linux,default-trigger = "default-on"; 99 }; 100 }; 101 102 sdio_pwrseq: sdio-pwrseq { 103 compatible = "mmc-pwrseq-simple"; 104 reset-gpios = <&gpio GPIOX_6 GPIO_ACTIVE_LOW>; 105 clocks = <&wifi32k>; 106 clock-names = "ext_clock"; 107 }; 108 109 thermal-zones { 110 cpu-thermal { 111 polling-delay-passive = <250>; /* milliseconds */ 112 polling-delay = <1000>; /* milliseconds */ 113 114 thermal-sensors = <&scpi_sensors 0>; 115 116 trips { 117 cpu_alert0: cpu-alert0 { 118 temperature = <70000>; /* millicelsius */ 119 hysteresis = <2000>; /* millicelsius */ 120 type = "active"; 121 }; 122 123 cpu_alert1: cpu-alert1 { 124 temperature = <80000>; /* millicelsius */ 125 hysteresis = <2000>; /* millicelsius */ 126 type = "passive"; 127 }; 128 }; 129 130 cooling-maps { 131 map0 { 132 trip = <&cpu_alert0>; 133 cooling-device = <&gpio_fan THERMAL_NO_LIMIT 1>; 134 }; 135 136 map1 { 137 trip = <&cpu_alert1>; 138 cooling-device = <&gpio_fan 2 THERMAL_NO_LIMIT>; 139 }; 140 141 map2 { 142 trip = <&cpu_alert1>; 143 cooling-device = 144 <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; 145 }; 146 147 map3 { 148 trip = <&cpu_alert1>; 149 cooling-device = 150 <&cpu4 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; 151 }; 152 }; 153 }; 154 }; 155 156 vcc_3v3: regulator-vcc_3v3 { 157 compatible = "regulator-fixed"; 158 regulator-name = "VCC_3V3"; 159 regulator-min-microvolt = <3300000>; 160 regulator-max-microvolt = <3300000>; 161 }; 162 163 vddio_ao18: regulator-vddio_ao18 { 164 compatible = "regulator-fixed"; 165 regulator-name = "VDDIO_AO18"; 166 regulator-min-microvolt = <1800000>; 167 regulator-max-microvolt = <1800000>; 168 }; 169 170 vddio_boot: regulator-vddio_boot { 171 compatible = "regulator-fixed"; 172 regulator-name = "VDDIO_BOOT"; 173 regulator-min-microvolt = <1800000>; 174 regulator-max-microvolt = <1800000>; 175 }; 176 177 vddao_3v3: regulator-vddao_3v3 { 178 compatible = "regulator-fixed"; 179 regulator-name = "VDDAO_3V3"; 180 regulator-min-microvolt = <3300000>; 181 regulator-max-microvolt = <3300000>; 182 }; 183 184 wifi32k: wifi32k { 185 compatible = "pwm-clock"; 186 #clock-cells = <0>; 187 clock-frequency = <32768>; 188 pwms = <&pwm_ef 0 30518 0>; /* PWM_E at 32.768KHz */ 189 }; 190}; 191 192&cec_AO { 193 status = "okay"; 194 pinctrl-0 = <&ao_cec_pins>; 195 pinctrl-names = "default"; 196 hdmi-phandle = <&hdmi_tx>; 197}; 198 199&cpu0 { 200 cooling-min-level = <0>; 201 cooling-max-level = <6>; 202 #cooling-cells = <2>; 203}; 204 205&cpu4 { 206 cooling-min-level = <0>; 207 cooling-max-level = <4>; 208 #cooling-cells = <2>; 209}; 210 211ðmac { 212 pinctrl-0 = <ð_pins>; 213 pinctrl-names = "default"; 214 215 /* Select external PHY by default */ 216 phy-handle = <&external_phy>; 217 218 amlogic,tx-delay-ns = <2>; 219 220 /* External PHY reset is shared with internal PHY Led signals */ 221 snps,reset-gpio = <&gpio GPIOZ_14 0>; 222 snps,reset-delays-us = <0 10000 1000000>; 223 snps,reset-active-low; 224 225 /* External PHY is in RGMII */ 226 phy-mode = "rgmii"; 227 228 status = "okay"; 229}; 230 231&external_mdio { 232 external_phy: ethernet-phy@0 { 233 /* Realtek RTL8211F (0x001cc916) */ 234 reg = <0>; 235 }; 236}; 237 238&hdmi_tx { 239 status = "okay"; 240 pinctrl-0 = <&hdmi_hpd_pins>, <&hdmi_i2c_pins>; 241 pinctrl-names = "default"; 242}; 243 244&hdmi_tx_tmds_port { 245 hdmi_tx_tmds_out: endpoint { 246 remote-endpoint = <&hdmi_connector_in>; 247 }; 248}; 249 250&i2c_A { 251 status = "okay"; 252 pinctrl-0 = <&i2c_a_pins>; 253 pinctrl-names = "default"; 254}; 255 256&i2c_B { 257 status = "okay"; 258 pinctrl-0 = <&i2c_b_pins>; 259 pinctrl-names = "default"; 260 261 rtc: rtc@51 { 262 /* has to be enabled manually when a battery is connected: */ 263 status = "disabled"; 264 compatible = "haoyu,hym8563"; 265 reg = <0x51>; 266 #clock-cells = <0>; 267 clock-frequency = <32768>; 268 clock-output-names = "xin32k"; 269 }; 270}; 271 272&ir { 273 status = "okay"; 274 pinctrl-0 = <&remote_input_ao_pins>; 275 pinctrl-names = "default"; 276 linux,rc-map-name = "rc-geekbox"; 277}; 278 279&pwm_AO_ab { 280 status = "okay"; 281 pinctrl-0 = <&pwm_ao_a_3_pins>, <&pwm_ao_b_pins>; 282 pinctrl-names = "default"; 283 clocks = <&clkc CLKID_FCLK_DIV4>; 284 clock-names = "clkin0"; 285}; 286 287&pwm_ef { 288 status = "okay"; 289 pinctrl-0 = <&pwm_e_pins>, <&pwm_f_clk_pins>; 290 pinctrl-names = "default"; 291 clocks = <&clkc CLKID_FCLK_DIV4>; 292 clock-names = "clkin0"; 293}; 294 295&sd_emmc_a { 296 status = "okay"; 297 pinctrl-0 = <&sdio_pins>; 298 pinctrl-names = "default"; 299 #address-cells = <1>; 300 #size-cells = <0>; 301 302 bus-width = <4>; 303 max-frequency = <100000000>; 304 305 non-removable; 306 disable-wp; 307 308 mmc-pwrseq = <&sdio_pwrseq>; 309 310 vmmc-supply = <&vddao_3v3>; 311 vqmmc-supply = <&vddio_boot>; 312 313 brcmf: wifi@1 { 314 reg = <1>; 315 compatible = "brcm,bcm4329-fmac"; 316 }; 317}; 318 319/* SD card */ 320&sd_emmc_b { 321 status = "okay"; 322 pinctrl-0 = <&sdcard_pins>; 323 pinctrl-names = "default"; 324 325 bus-width = <4>; 326 cap-sd-highspeed; 327 max-frequency = <100000000>; 328 disable-wp; 329 330 cd-gpios = <&gpio CARD_6 GPIO_ACTIVE_HIGH>; 331 cd-inverted; 332 333 vmmc-supply = <&vddao_3v3>; 334 vqmmc-supply = <&vddio_boot>; 335}; 336 337/* eMMC */ 338&sd_emmc_c { 339 status = "okay"; 340 pinctrl-0 = <&emmc_pins>, <&emmc_ds_pins>; 341 pinctrl-names = "default"; 342 343 bus-width = <8>; 344 cap-sd-highspeed; 345 cap-mmc-highspeed; 346 max-frequency = <200000000>; 347 non-removable; 348 disable-wp; 349 mmc-ddr-1_8v; 350 mmc-hs200-1_8v; 351 mmc-hs400-1_8v; 352 353 mmc-pwrseq = <&emmc_pwrseq>; 354 vmmc-supply = <&vcc_3v3>; 355 vqmmc-supply = <&vddio_boot>; 356}; 357 358/* 359 * EMMC_DS pin is shared between SPI NOR CS and eMMC Data Strobe 360 * Remove emmc_ds_pins from sd_emmc_c pinctrl-0 then spifc can be enabled 361 */ 362&spifc { 363 status = "disabled"; 364 pinctrl-0 = <&nor_pins>; 365 pinctrl-names = "default"; 366 367 w25q32: spi-flash@0 { 368 #address-cells = <1>; 369 #size-cells = <1>; 370 compatible = "winbond,w25q16", "jedec,spi-nor"; 371 reg = <0>; 372 spi-max-frequency = <3000000>; 373 }; 374}; 375 376/* This one is connected to the Bluetooth module */ 377&uart_A { 378 status = "okay"; 379 pinctrl-0 = <&uart_a_pins>; 380 pinctrl-names = "default"; 381}; 382 383/* This is brought out on the Linux_RX (18) and Linux_TX (19) pins: */ 384&uart_AO { 385 status = "okay"; 386 pinctrl-0 = <&uart_ao_a_pins>; 387 pinctrl-names = "default"; 388}; 389 390/* This is brought out on the UART_RX_AO_B (15) and UART_TX_AO_B (16) pins: */ 391&uart_AO_B { 392 status = "okay"; 393 pinctrl-0 = <&uart_ao_b_pins>; 394 pinctrl-names = "default"; 395}; 396 397&saradc { 398 status = "okay"; 399 vref-supply = <&vddio_ao18>; 400}; 401