xref: /linux/arch/arm64/boot/dts/allwinner/sun55i-a527-cubie-a5e.dts (revision db4a3f0fbedb0398f77b9047e8b8bb2b49f355bb) 
1// SPDX-License-Identifier: (GPL-2.0-only OR MIT)
2// Copyright (C) 2025 Arm Ltd.
3
4/dts-v1/;
5
6#include "sun55i-a523.dtsi"
7
8#include <dt-bindings/gpio/gpio.h>
9#include <dt-bindings/leds/common.h>
10
11/ {
12	model = "Radxa Cubie A5E";
13	compatible = "radxa,cubie-a5e", "allwinner,sun55i-a527";
14
15	aliases {
16		ethernet0 = &gmac0;
17		serial0 = &uart0;
18	};
19
20	chosen {
21		stdout-path = "serial0:115200n8";
22	};
23
24	leds {
25		compatible = "gpio-leds";
26
27		power-led {
28			function = LED_FUNCTION_POWER;
29			color = <LED_COLOR_ID_GREEN>;
30			gpios = <&r_pio 0 4 GPIO_ACTIVE_LOW>; /* PL4 */
31			default-state = "on";
32			linux,default-trigger = "heartbeat";
33		};
34
35		use-led {
36			function = LED_FUNCTION_ACTIVITY;
37			color = <LED_COLOR_ID_BLUE>;
38			gpios = <&r_pio 0 5 GPIO_ACTIVE_LOW>; /* PL5 */
39		};
40	};
41
42	iio-hwmon {
43		compatible = "iio-hwmon";
44		io-channels = <&axp717_adc 3>, /* vsys_v */
45			      <&axp717_adc 4>; /* pmic_temp */
46	};
47
48	reg_vcc5v: vcc5v {
49		/* board wide 5V supply from the USB-C connector */
50		compatible = "regulator-fixed";
51		regulator-name = "vcc-5v";
52		regulator-min-microvolt = <5000000>;
53		regulator-max-microvolt = <5000000>;
54		regulator-always-on;
55	};
56
57	reg_usb_vbus: vbus {
58		compatible = "regulator-fixed";
59		regulator-name = "usb-vbus";
60		regulator-min-microvolt = <5000000>;
61		regulator-max-microvolt = <5000000>;
62		vin-supply = <&reg_vcc5v>;
63		gpio = <&r_pio 0 8 GPIO_ACTIVE_HIGH>;	/* PL8 */
64		enable-active-high;
65	};
66};
67
68&ehci0 {
69	status = "okay";
70};
71
72&ehci1 {
73	status = "okay";
74};
75
76&gmac0 {
77	phy-mode = "rgmii-id";
78	phy-handle = <&ext_rgmii_phy>;
79	phy-supply = <&reg_cldo3>;
80
81	allwinner,tx-delay-ps = <300>;
82	allwinner,rx-delay-ps = <400>;
83
84	status = "okay";
85};
86
87&gpu {
88	mali-supply = <&reg_dcdc2>;
89	status = "okay";
90};
91
92&mdio0 {
93	ext_rgmii_phy: ethernet-phy@1 {
94		compatible = "ethernet-phy-ieee802.3-c22";
95		reg = <1>;
96		reset-gpios = <&pio 7 8 GPIO_ACTIVE_LOW>; /* PH8 */
97		reset-assert-us = <10000>;
98		reset-deassert-us = <150000>;
99	};
100};
101
102&mmc0 {
103	vmmc-supply = <&reg_cldo3>;
104	cd-gpios = <&pio 5 6 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>; /* PF6 */
105	bus-width = <4>;
106	status = "okay";
107};
108
109&ohci0 {
110	status = "okay";
111};
112
113&ohci1 {
114	status = "okay";
115};
116
117&pio {
118	vcc-pb-supply = <&reg_cldo3>;	/* via VCC-IO */
119	vcc-pc-supply = <&reg_cldo1>;
120	vcc-pd-supply = <&reg_cldo3>;
121	vcc-pe-supply = <&reg_aldo2>;
122	vcc-pf-supply = <&reg_cldo3>;	/* actually switchable */
123	vcc-pg-supply = <&reg_bldo1>;
124	vcc-ph-supply = <&reg_cldo3>;	/* via VCC-IO */
125	vcc-pi-supply = <&reg_cldo3>;
126	vcc-pj-supply = <&reg_cldo4>;
127	vcc-pk-supply = <&reg_cldo1>;
128};
129
130&r_i2c0 {
131	status = "okay";
132
133	axp717: pmic@34 {
134		compatible = "x-powers,axp717";
135		reg = <0x34>;
136		interrupt-controller;
137		#interrupt-cells = <1>;
138		interrupt-parent = <&nmi_intc>;
139		interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
140
141		vin1-supply = <&reg_vcc5v>;
142		vin2-supply = <&reg_vcc5v>;
143		vin3-supply = <&reg_vcc5v>;
144		vin4-supply = <&reg_vcc5v>;
145		aldoin-supply = <&reg_vcc5v>;
146		bldoin-supply = <&reg_vcc5v>;
147		cldoin-supply = <&reg_vcc5v>;
148
149		axp717_adc: adc {
150			compatible = "x-powers,axp717-adc";
151			#io-channel-cells = <1>;
152		};
153
154		battery-power {
155			compatible = "x-powers,axp717-battery-power-supply";
156			/* charger mode design but has no battery terminal */
157			status = "disabled";
158		};
159
160		regulators {
161			/* Supplies the "little" cluster (1.4 GHz cores) */
162			reg_dcdc1: dcdc1 {
163				regulator-always-on;
164				regulator-min-microvolt = <900000>;
165				regulator-max-microvolt = <1160000>;
166				regulator-name = "vdd-cpul";
167			};
168
169			reg_dcdc2: dcdc2 {
170				regulator-always-on;
171				regulator-min-microvolt = <920000>;
172				regulator-max-microvolt = <920000>;
173				regulator-name = "vdd-gpu-sys";
174			};
175
176			reg_dcdc3: dcdc3 {
177				regulator-always-on;
178				regulator-min-microvolt = <1100000>;
179				regulator-max-microvolt = <1100000>;
180				regulator-name = "vdd-dram";
181			};
182
183			reg_aldo1: aldo1 {
184				/* not connected */
185			};
186
187			reg_aldo2: aldo2 {
188				regulator-min-microvolt = <1800000>;
189				regulator-max-microvolt = <1800000>;
190				regulator-name = "vcc-pe";
191			};
192
193			reg_aldo3: aldo3 {
194				/* supplies the I2C pins for this PMIC */
195				regulator-always-on;
196				regulator-min-microvolt = <3300000>;
197				regulator-max-microvolt = <3300000>;
198				regulator-name = "vcc-pl-usb";
199			};
200
201			reg_aldo4: aldo4 {
202				regulator-always-on;
203				regulator-min-microvolt = <1800000>;
204				regulator-max-microvolt = <1800000>;
205				regulator-name = "vcc-pll-dxco-avcc";
206			};
207
208			reg_bldo1: bldo1 {
209				regulator-min-microvolt = <1800000>;
210				regulator-max-microvolt = <1800000>;
211				regulator-name = "vcc-pg-iowifi";
212			};
213
214			reg_bldo2: bldo2 {
215				regulator-always-on;
216				regulator-min-microvolt = <1800000>;
217				regulator-max-microvolt = <1800000>;
218				regulator-name = "vcc-pm-lpddr4";
219			};
220
221			reg_bldo3: bldo3 {
222				regulator-min-microvolt = <3300000>;
223				regulator-max-microvolt = <3300000>;
224				regulator-name = "vcc-mipi-cam";
225			};
226
227			reg_bldo4: bldo4 {
228				/* not connected */
229			};
230
231			reg_cldo1: cldo1 {
232				regulator-min-microvolt = <1800000>;
233				regulator-max-microvolt = <1800000>;
234				regulator-name = "vcc-pc-and-their-dog";
235			};
236
237			reg_cldo2: cldo2 {
238				/* not connected */
239			};
240
241			reg_cldo3: cldo3 {
242				/* IO, USB-2, 3V3, card, NAND, sensor, PI */
243				regulator-always-on;
244				regulator-min-microvolt = <3300000>;
245				regulator-max-microvolt = <3300000>;
246				regulator-name = "vcc-io-mmc-spi-ana";
247			};
248
249			reg_cldo4: cldo4 {
250				regulator-min-microvolt = <3300000>;
251				regulator-max-microvolt = <3300000>;
252				regulator-name = "vcc-pj-phy";
253			};
254
255			reg_cpusldo: cpusldo {
256				/* supplies the management core */
257				regulator-always-on;
258				regulator-min-microvolt = <900000>;
259				regulator-max-microvolt = <900000>;
260				regulator-name = "vdd-cpus";
261			};
262		};
263
264		usb-power {
265			compatible = "x-powers,axp717-usb-power-supply";
266		};
267	};
268
269	axp323: pmic@36 {
270		compatible = "x-powers,axp323";
271		reg = <0x36>;
272		#interrupt-cells = <1>;
273		interrupt-controller;
274		interrupt-parent = <&nmi_intc>;
275		interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
276		status = "okay";
277
278		vin1-supply = <&reg_vcc5v>;
279		vin2-supply = <&reg_vcc5v>;
280		vin3-supply = <&reg_vcc5v>;
281
282		regulators {
283			aldo1 {
284				regulator-min-microvolt = <1800000>;
285				regulator-max-microvolt = <1800000>;
286				regulator-name = "vcc-mipi-dsi";
287			};
288
289			dldo1 {
290				/* not connected */
291			};
292
293			/* Supplies the "big" cluster (1.8 GHz cores) */
294			reg_dcdc1_323: dcdc1 {
295				regulator-always-on;
296				regulator-min-microvolt = <900000>;
297				regulator-max-microvolt = <1160000>;
298				regulator-name = "vdd-cpub";
299			};
300
301			/* DCDC2 is polyphased with DCDC1 */
302
303			/* RISC-V management core supply */
304			reg_dcdc3_323: dcdc3 {
305				regulator-always-on;
306				regulator-min-microvolt = <900000>;
307				regulator-max-microvolt = <900000>;
308				regulator-name = "vdd-dnr";
309			};
310		};
311	};
312};
313
314&r_pio {
315/*
316 * Specifying the supply would create a circular dependency.
317 *
318 *	vcc-pl-supply = <&reg_aldo3>;
319 */
320	vcc-pm-supply = <&reg_aldo3>;
321};
322
323&uart0 {
324	pinctrl-names = "default";
325	pinctrl-0 = <&uart0_pb_pins>;
326	status = "okay";
327};
328
329&usb_otg {
330	/*
331	 * The USB-C port is the primary power supply, so in this configuration
332	 * relies on the other end of the USB cable to supply the VBUS power.
333	 * So use this port in peripheral mode.
334	 * It is possible to supply the board with the 5V pins on the GPIO
335	 * header, and since the DCIN_5V line is hardwired to the USB-C VBUS
336	 * pins, the port turns into a host port, unconditionally supplying
337	 * power. The dr_mode property should be changed to "host" here, if
338	 * users choose this setup.
339	 */
340	dr_mode = "peripheral";
341	status = "okay";
342};
343
344/*
345 * The schematic describes USB0_ID (PL10), measuring VBUS_5V, which looks to
346 * be always on. Also there is USB-VBUSDET (PL2), which is measuring the same
347 * VBUS_5V. There is also DCIN_DET, which measures DCIN_5V, so the power
348 * input rail.
349 * None of them seem to make any sense in relation to detecting USB devices
350 * or whether there is power provided via any USB pins: they would always
351 * report high, otherwise the system wouldn't be running.
352 * The AXP717C provides proper USB-C CC pin functionality, but the PMIC is
353 * not connected to those pins of the USB-C connector.
354 */
355&usbphy {
356	usb0_vbus-supply = <&reg_vcc5v>;
357	usb1_vbus-supply = <&reg_usb_vbus>;
358	status = "okay";
359};
360