tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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
224&cpu0 {
225 cpu-supply = <&vcck>;
226};
227
228ðmac {
229 status = "okay";
230
231 pinctrl-0 = <ð_rmii_pins>;
232 pinctrl-names = "default";
233
234 phy-handle = <ð_phy0>;
235 phy-mode = "rmii";
236
237 snps,reset-gpio = <&gpio GPIOH_4 0>;
238 snps,reset-delays-us = <0 10000 1000000>;
239 snps,reset-active-low;
240
241 mdio {
242 compatible = "snps,dwmac-mdio";
243 #address-cells = <1>;
244 #size-cells = <0>;
245
246 eth_phy0: ethernet-phy@0 {
247 /* IC Plus IP101A/G (0x02430c54) */
248 reg = <0>;
249 icplus,select-interrupt;
250 interrupt-parent = <&gpio_intc>;
251 /* GPIOH_3 */
252 interrupts = <17 IRQ_TYPE_LEVEL_LOW>;
253 };
254 };
255};
256
257&i2c_A {
258 status = "okay";
259 pinctrl-0 = <&i2c_a_pins>;
260 pinctrl-names = "default";
261
262 rt5640: codec@1c {
263 compatible = "realtek,rt5640";
264 reg = <0x1c>;
265 interrupt-parent = <&gpio_intc>;
266 interrupts = <13 IRQ_TYPE_EDGE_BOTH>; /* GPIOAO_13 */
267 realtek,in1-differential;
268 };
269};
270
271&saradc {
272 status = "okay";
273 vref-supply = <&vcc_1v8>;
274};
275
276&sdio {
277 status = "okay";
278
279 pinctrl-0 = <&sd_b_pins>;
280 pinctrl-names = "default";
281
282 /* SD card */
283 sd_card_slot: slot@1 {
284 compatible = "mmc-slot";
285 reg = <1>;
286 status = "okay";
287
288 bus-width = <4>;
289 no-sdio;
290 cap-mmc-highspeed;
291 cap-sd-highspeed;
292 disable-wp;
293
294 cd-gpios = <&gpio CARD_6 GPIO_ACTIVE_LOW>;
295
296 vmmc-supply = <&vcc_3v3>;
297 };
298};
299
300&gpio_ao {
301 gpio-line-names = "Linux_TX", "Linux_RX",
302 "SLP_S5_N", "USB2_OC_FLAG#",
303 "HUB_RST", "USB_PWR_EN",
304 "I2S_IN", "SLP_S1_N",
305 "TCK", "TMS", "TDI", "TDO",
306 "HDMI_CEC", "5640_IRQ",
307 "MUTE", "S805_TEST#";
308};
309
310&gpio {
311 gpio-line-names = /* Bank GPIOX */
312 "WIFI_SD_D0", "WIFI_SD_D1", "WIFI_SD_D2",
313 "WIFI_SD_D3", "BTPCM_DOUT", "BTPCM_DIN",
314 "BTPCM_SYNC", "BTPCM_CLK", "WIFI_SD_CLK",
315 "WIFI_SD_CMD", "WIFI_32K", "WIFI_PWREN",
316 "UART_B_TX", "UART_B_RX", "UART_B_CTS_N",
317 "UART_B_RTS_N", "BT_EN", "WIFI_WAKE_HOST",
318 /* Bank GPIOY */
319 "", "", "", "", "", "", "", "", "", "",
320 "", "",
321 /* Bank GPIODV */
322 "VCCK_PWM_C", "I2C_SDA_A", "I2C_SCL_A",
323 "I2C_SDA_B", "I2C_SCL_B", "VDDEE_PWM_D",
324 "VDDEE_PWM 3V3_5V_EN",
325 /* Bank GPIOH */
326 "HDMI_HPD", "HDMI_I2C_SDA", "HDMI_I2C_SCL",
327 "RMII_IRQ", "RMII_RST#", "RMII_TXD1",
328 "RMII_TXD0", "AV_select_1", "AV_select_2",
329 "MCU_Control_S",
330 /* Bank CARD */
331 "SD_D1_B", "SD_D0_B", "SD_CLK_8726MX",
332 "SD_CMD_8726MX", "SD_D3_B", "SD_D2_B",
333 "CARD_EN_DET (CARD_DET)",
334 /* Bank BOOT */
335 "NAND_D0 (EMMC)", "NAND_D1 (EMMC)",
336 "NAND_D2 (EMMC)", "NAND_D3 (EMMC)",
337 "NAND_D4 (EMMC)", "NAND_D5 (EMMC)",
338 "NAND_D6 (EMMC)", "NAND_D7 (EMMC)",
339 "NAND_CS1 (EMMC)", "NAND_CS2 iNAND_RS1 (EMMC)",
340 "NAND_nR/B iNAND_CMD (EMMC)", "NAND_ALE (EMMC)",
341 "NAND_CLE (EMMC)", "nRE_S1 NAND_nRE (EMMC)",
342 "nWE_S1 NAND_nWE (EMMC)", "", "", "SPI_CS",
343 /* Bank DIF */
344 "RMII_RXD1", "RMII_RXD0", "RMII_CRS_DV",
345 "RMII_50M_IN", "GPIODIF_4", "GPIODIF_5",
346 "RMII_TXEN", "CPUETH_25MOUT", "RMII_MDC",
347 "RMII_MDIO";
348};
349
350&pwm_cd {
351 status = "okay";
352 pinctrl-0 = <&pwm_c1_pins>;
353 pinctrl-names = "default";
354 clocks = <&clkc CLKID_XTAL>;
355 clock-names = "clkin0";
356};
357
358&rtc {
359 status = "okay";
360 clocks = <&rtc32k_xtal>;
361 vdd-supply = <&vcc_rtc>;
362};
363
364/* exposed through the pin headers labeled "URDUG1" on the top of the PCB */
365&uart_AO {
366 status = "okay";
367 pinctrl-0 = <&uart_ao_a_pins>;
368 pinctrl-names = "default";
369};
370
371/*
372 * connected to the Bluetooth part of the RTL8723BS SDIO wifi / Bluetooth
373 * combo chip. This is only available on the variant with 2GB RAM.
374 */
375&uart_B {
376 status = "okay";
377 pinctrl-0 = <&uart_b0_pins>, <&uart_b0_cts_rts_pins>;
378 pinctrl-names = "default";
379 uart-has-rtscts;
380};
381
382&usb1 {
383 status = "okay";
384 vbus-supply = <&usb_vbus>;
385};
386
387&usb1_phy {
388 status = "okay";
389};