xref: /linux/arch/arm/boot/dts/amlogic/meson8b-ec100.dts (revision 6c1561fb900524c5bceb924071b3e9b8a67ff3da) 
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	leds {
74		compatible = "gpio-leds";
75
76		led-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	sound {
100		compatible = "amlogic,gx-sound-card";
101		model = "M8B-EC100";
102
103		assigned-clocks = <&clkc CLKID_MPLL0>,
104				  <&clkc CLKID_MPLL1>,
105				  <&clkc CLKID_MPLL2>;
106		assigned-clock-rates = <270950400>,
107				       <294912000>,
108				       <393216000>;
109
110		dai-link-0 {
111			sound-dai = <&aiu AIU_CPU CPU_I2S_FIFO>;
112		};
113
114		dai-link-1 {
115			sound-dai = <&aiu AIU_CPU CPU_I2S_ENCODER>;
116			dai-format = "i2s";
117			mclk-fs = <256>;
118
119			codec-0 {
120				sound-dai = <&rt5640>;
121			};
122		};
123	};
124
125	usb_vbus: regulator-usb-vbus {
126		/*
127		 * Silergy SY6288CCAC-GP 2A Power Distribution Switch.
128		 */
129		compatible = "regulator-fixed";
130
131		regulator-name = "USB_VBUS";
132
133		regulator-min-microvolt = <5000000>;
134		regulator-max-microvolt = <5000000>;
135
136		vin-supply = <&vcc_5v>;
137
138		/*
139		 * signal name from the schematics: USB_PWR_EN
140		 */
141		gpio = <&gpio_ao GPIOAO_5 GPIO_ACTIVE_HIGH>;
142		enable-active-high;
143	};
144
145	vcc_5v: regulator-vcc5v {
146		/*
147		 * supplied by the main power input which called PWR_5V_STB
148		 * in the schematics
149		 */
150		compatible = "regulator-fixed";
151
152		regulator-name = "VCC5V";
153
154		regulator-min-microvolt = <5000000>;
155		regulator-max-microvolt = <5000000>;
156
157		/*
158		 * signal name from the schematics: 3V3_5V_EN
159		 */
160		gpio = <&gpio GPIODV_29 GPIO_ACTIVE_LOW>;
161
162		regulator-boot-on;
163		regulator-always-on;
164	};
165
166	vcck: regulator-vcck {
167		/*
168		 * Silergy SY8089AAC-GP 2A continuous, 3A peak, 1MHz
169		 * Synchronous Step Down Regulator.
170		 */
171		compatible = "pwm-regulator";
172
173		regulator-name = "VCCK";
174		regulator-min-microvolt = <860000>;
175		regulator-max-microvolt = <1140000>;
176
177		pwm-supply = <&vcc_5v>;
178
179		pwms = <&pwm_cd 0 1148 0>;
180		pwm-dutycycle-range = <100 0>;
181
182		regulator-boot-on;
183		regulator-always-on;
184	};
185
186	vcc_1v8: regulator-vcc1v8 {
187		/*
188		 * ABLIC S-1339D18-M5001-GP
189		 */
190		compatible = "regulator-fixed";
191
192		regulator-name = "VCC1V8";
193		regulator-min-microvolt = <1800000>;
194		regulator-max-microvolt = <1800000>;
195
196		vin-supply = <&vcc_3v3>;
197	};
198
199	vcc_3v3: regulator-vcc3v3 {
200		/*
201		 * Silergy SY8089AAC-GP 2A continuous, 3A peak, 1MHz
202		 * Synchronous Step Down Regulator. Also called
203		 * VDDIO_AO3.3V in the schematics.
204		 */
205		compatible = "regulator-fixed";
206
207		regulator-name = "VCC3V3";
208		regulator-min-microvolt = <3300000>;
209		regulator-max-microvolt = <3300000>;
210
211		vin-supply = <&vcc_5v>;
212	};
213
214	vcc_ddr3: regulator-vcc-ddr3 {
215		/*
216		 * Silergy SY8089AAC-GP 2A continuous, 3A peak, 1MHz
217		 * Synchronous Step Down Regulator. Also called
218		 * DDR3_1.5V in the schematics.
219		 */
220		compatible = "regulator-fixed";
221
222		regulator-name = "VCC_DDR3_1V5";
223		regulator-min-microvolt = <1500000>;
224		regulator-max-microvolt = <1500000>;
225
226		vin-supply = <&vcc_5v>;
227
228		regulator-boot-on;
229		regulator-always-on;
230	};
231
232	vcc_rtc: regulator-vcc-rtc {
233		/*
234		 * Global Mixed-mode Technology Inc. G918T12U-GP
235		 */
236		compatible = "regulator-fixed";
237
238		regulator-name = "VCC_RTC";
239		regulator-min-microvolt = <900000>;
240		regulator-max-microvolt = <900000>;
241
242		/*
243		 * When the board is powered then the input is VCC3V3,
244		 * otherwise power is taken from the coin cell battery.
245		 */
246		vin-supply = <&vcc_3v3>;
247	};
248
249	vddee: regulator-vddee {
250		/*
251		 * Silergy SY8089AAC-GP 2A continuous, 3A peak, 1MHz
252		 * Synchronous Step Down Regulator. Also called VDDAO
253		 * in a part of the schematics.
254		 */
255		compatible = "pwm-regulator";
256
257		regulator-name = "VDDEE";
258		regulator-min-microvolt = <860000>;
259		regulator-max-microvolt = <1140000>;
260
261		pwm-supply = <&vcc_5v>;
262
263		pwms = <&pwm_cd 1 1148 0>;
264		pwm-dutycycle-range = <100 0>;
265
266		regulator-boot-on;
267		regulator-always-on;
268	};
269};
270
271&aiu {
272	status = "okay";
273
274	pinctrl-0 = <&i2s_am_clk_pins>, <&i2s_out_ao_clk_pins>,
275		    <&i2s_out_lr_clk_pins>, <&i2s_out_ch01_ao_pins>;
276	pinctrl-names = "default";
277};
278
279&cpu0 {
280	cpu-supply = <&vcck>;
281};
282
283&ethmac {
284	status = "okay";
285
286	pinctrl-0 = <&eth_rmii_pins>;
287	pinctrl-names = "default";
288
289	phy-handle = <&eth_phy0>;
290	phy-mode = "rmii";
291
292	mdio {
293		compatible = "snps,dwmac-mdio";
294		#address-cells = <1>;
295		#size-cells = <0>;
296
297		eth_phy0: ethernet-phy@0 {
298			/* IC Plus IP101A/G (0x02430c54) */
299			reg = <0>;
300
301			reset-assert-us = <10000>;
302			reset-deassert-us = <10000>;
303			reset-gpios = <&gpio GPIOH_4 GPIO_ACTIVE_LOW>;
304
305			icplus,select-interrupt;
306			interrupt-parent = <&gpio_intc>;
307			/* GPIOH_3 */
308			interrupts = <17 IRQ_TYPE_LEVEL_LOW>;
309		};
310	};
311};
312
313&i2c_A {
314	status = "okay";
315	pinctrl-0 = <&i2c_a_pins>;
316	pinctrl-names = "default";
317
318	rt5640: codec@1c {
319		compatible = "realtek,rt5640";
320
321		reg = <0x1c>;
322
323		#sound-dai-cells = <0>;
324
325		interrupt-parent = <&gpio_intc>;
326		interrupts = <13 IRQ_TYPE_EDGE_BOTH>; /* GPIOAO_13 */
327
328		/*
329		 * TODO: realtek,ldo1-en-gpios is connected to GPIO_BSD_EN.
330		 * We currently cannot configure this pin correctly.
331		 * Luckily for us it's in the "right" state by default.
332		 */
333		realtek,in1-differential;
334	};
335};
336
337&mali {
338	mali-supply = <&vddee>;
339};
340
341&saradc {
342	status = "okay";
343	vref-supply = <&vcc_1v8>;
344};
345
346&sdhc {
347	status = "okay";
348
349	pinctrl-0 = <&sdxc_c_pins>;
350	pinctrl-names = "default";
351
352	bus-width = <8>;
353	max-frequency = <50000000>;
354
355	cap-mmc-highspeed;
356	disable-wp;
357	non-removable;
358	no-sdio;
359
360	mmc-pwrseq = <&emmc_pwrseq>;
361
362	vmmc-supply = <&vcc_3v3>;
363	vqmmc-supply = <&vcc_3v3>;
364};
365
366&sdio {
367	status = "okay";
368
369	pinctrl-0 = <&sd_b_pins>;
370	pinctrl-names = "default";
371
372	/* SD card */
373	sd_card_slot: slot@1 {
374		compatible = "mmc-slot";
375		reg = <1>;
376		status = "okay";
377
378		bus-width = <4>;
379		no-sdio;
380		cap-mmc-highspeed;
381		cap-sd-highspeed;
382		disable-wp;
383
384		cd-gpios = <&gpio CARD_6 GPIO_ACTIVE_LOW>;
385
386		vmmc-supply = <&vcc_3v3>;
387	};
388};
389
390&gpio_ao {
391	gpio-line-names = "Linux_TX", "Linux_RX",
392			  "SLP_S5_N", "USB2_OC_FLAG#",
393			  "HUB_RST", "USB_PWR_EN",
394			  "I2S_IN", "SLP_S1_N",
395			  "TCK", "TMS", "TDI", "TDO",
396			  "HDMI_CEC", "5640_IRQ",
397			  "MUTE", "S805_TEST#";
398};
399
400&gpio {
401	gpio-line-names = /* Bank GPIOX */
402			  "WIFI_SD_D0", "WIFI_SD_D1", "WIFI_SD_D2",
403			  "WIFI_SD_D3", "BTPCM_DOUT", "BTPCM_DIN",
404			  "BTPCM_SYNC", "BTPCM_CLK", "WIFI_SD_CLK",
405			  "WIFI_SD_CMD", "WIFI_32K", "WIFI_PWREN",
406			  "UART_B_TX", "UART_B_RX", "UART_B_CTS_N",
407			  "UART_B_RTS_N", "BT_EN", "WIFI_WAKE_HOST",
408			  /* Bank GPIOY */
409			  "", "", "", "", "", "", "", "", "", "",
410			  "", "",
411			  /* Bank GPIODV */
412			  "VCCK_PWM_C", "I2C_SDA_A", "I2C_SCL_A",
413			  "I2C_SDA_B", "I2C_SCL_B", "VDDEE_PWM_D",
414			  "VDDEE_PWM 3V3_5V_EN",
415			  /* Bank GPIOH */
416			  "HDMI_HPD", "HDMI_I2C_SDA", "HDMI_I2C_SCL",
417			  "RMII_IRQ", "RMII_RST#", "RMII_TXD1",
418			  "RMII_TXD0", "AV_select_1", "AV_select_2",
419			  "MCU_Control_S",
420			  /* Bank CARD */
421			  "SD_D1_B", "SD_D0_B", "SD_CLK_8726MX",
422			  "SD_CMD_8726MX", "SD_D3_B", "SD_D2_B",
423			  "CARD_EN_DET (CARD_DET)",
424			  /* Bank BOOT */
425			  "NAND_D0 (EMMC)", "NAND_D1 (EMMC)",
426			  "NAND_D2 (EMMC)", "NAND_D3 (EMMC)",
427			  "NAND_D4 (EMMC)", "NAND_D5 (EMMC)",
428			  "NAND_D6 (EMMC)", "NAND_D7 (EMMC)",
429			  "NAND_CS1 (EMMC)", "NAND_CS2 iNAND_RS1 (EMMC)",
430			  "NAND_nR/B iNAND_CMD (EMMC)", "NAND_ALE (EMMC)",
431			  "NAND_CLE (EMMC)", "nRE_S1 NAND_nRE (EMMC)",
432			  "nWE_S1 NAND_nWE (EMMC)",  "", "", "SPI_CS",
433			  /* Bank DIF */
434			  "RMII_RXD1", "RMII_RXD0", "RMII_CRS_DV",
435			  "RMII_50M_IN", "GPIODIF_4", "GPIODIF_5",
436			  "RMII_TXEN", "CPUETH_25MOUT", "RMII_MDC",
437			  "RMII_MDIO";
438};
439
440&pwm_cd {
441	status = "okay";
442	pinctrl-0 = <&pwm_c1_pins>, <&pwm_d_pins>;
443	pinctrl-names = "default";
444	clocks = <&xtal>, <&xtal>;
445	clock-names = "clkin0", "clkin1";
446};
447
448&rtc {
449	status = "okay";
450	clocks = <&rtc32k_xtal>;
451	vdd-supply = <&vcc_rtc>;
452};
453
454/* exposed through the pin headers labeled "URDUG1" on the top of the PCB */
455&uart_AO {
456	status = "okay";
457	pinctrl-0 = <&uart_ao_a_pins>;
458	pinctrl-names = "default";
459};
460
461/*
462 * connected to the Bluetooth part of the RTL8723BS SDIO wifi / Bluetooth
463 * combo chip. This is only available on the variant with 2GB RAM.
464 */
465&uart_B {
466	status = "okay";
467	pinctrl-0 = <&uart_b0_pins>, <&uart_b0_cts_rts_pins>;
468	pinctrl-names = "default";
469	uart-has-rtscts;
470};
471
472&usb1 {
473	status = "okay";
474	vbus-supply = <&usb_vbus>;
475};
476
477&usb1_phy {
478	status = "okay";
479};
480