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 = <&clkc CLKID_XTAL>, <&clkc CLKID_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};
416