1// SPDX-License-Identifier: (GPL-2.0 OR MIT)
  2/*
  3 * Device Tree Source for the Spider CPU board
  4 *
  5 * Copyright (C) 2021 Renesas Electronics Corp.
  6 */
  7
  8#include <dt-bindings/gpio/gpio.h>
  9#include <dt-bindings/leds/common.h>
 10
 11#include "r8a779f0.dtsi"
 12
 13/ {
 14	model = "Renesas Spider CPU board";
 15	compatible = "renesas,spider-cpu", "renesas,r8a779f0";
 16
 17	aliases {
 18		serial0 = &hscif0;
 19		serial1 = &scif0;
 20	};
 21
 22	chosen {
 23		bootargs = "ignore_loglevel rw root=/dev/nfs ip=on";
 24		stdout-path = "serial0:1843200n8";
 25	};
 26
 27	leds {
 28		compatible = "gpio-leds";
 29
 30		led-7 {
 31			gpios = <&gpio0 11 GPIO_ACTIVE_HIGH>;
 32			color = <LED_COLOR_ID_GREEN>;
 33			function = LED_FUNCTION_INDICATOR;
 34			function-enumerator = <7>;
 35		};
 36
 37		led-8 {
 38			gpios = <&gpio0 14 GPIO_ACTIVE_HIGH>;
 39			color = <LED_COLOR_ID_GREEN>;
 40			function = LED_FUNCTION_INDICATOR;
 41			function-enumerator = <8>;
 42		};
 43	};
 44
 45	memory@48000000 {
 46		device_type = "memory";
 47		/* first 128MB is reserved for secure area. */
 48		reg = <0x0 0x48000000 0x0 0x78000000>;
 49	};
 50
 51	memory@480000000 {
 52		device_type = "memory";
 53		reg = <0x4 0x80000000 0x0 0x80000000>;
 54	};
 55
 56	rc21012_pci: clk-rc21012-pci {
 57		compatible = "fixed-clock";
 58		clock-frequency = <100000000>;
 59		#clock-cells = <0>;
 60	};
 61
 62	rc21012_ufs: clk-rc21012-ufs {
 63		compatible = "fixed-clock";
 64		clock-frequency = <38400000>;
 65		#clock-cells = <0>;
 66	};
 67
 68	reg_1p8v: regulator-1p8v {
 69		compatible = "regulator-fixed";
 70		regulator-name = "fixed-1.8V";
 71		regulator-min-microvolt = <1800000>;
 72		regulator-max-microvolt = <1800000>;
 73		regulator-boot-on;
 74		regulator-always-on;
 75	};
 76
 77	reg_3p3v: regulator-3p3v {
 78		compatible = "regulator-fixed";
 79		regulator-name = "fixed-3.3V";
 80		regulator-min-microvolt = <3300000>;
 81		regulator-max-microvolt = <3300000>;
 82		regulator-boot-on;
 83		regulator-always-on;
 84	};
 85};
 86
 87&extal_clk {
 88	clock-frequency = <20000000>;
 89};
 90
 91&extalr_clk {
 92	clock-frequency = <32768>;
 93};
 94
 95&hscif0 {
 96	pinctrl-0 = <&hscif0_pins>;
 97	pinctrl-names = "default";
 98
 99	uart-has-rtscts;
100	status = "okay";
101};
102
103&i2c0 {
104	pinctrl-0 = <&i2c0_pins>;
105	pinctrl-names = "default";
106
107	status = "okay";
108	clock-frequency = <400000>;
109
110	gpio_exp_20: gpio@20 {
111		compatible = "ti,tca9554";
112		reg = <0x20>;
113		gpio-controller;
114		#gpio-cells = <2>;
115
116		rc21012-gpio2-hog {
117			gpio-hog;
118			gpios = <5 GPIO_ACTIVE_LOW>;
119			output-high;
120		};
121	};
122};
123
124&i2c4 {
125	pinctrl-0 = <&i2c4_pins>;
126	pinctrl-names = "default";
127
128	status = "okay";
129	clock-frequency = <400000>;
130
131	eeprom@50 {
132		compatible = "rohm,br24g01", "atmel,24c01";
133		label = "cpu-board";
134		reg = <0x50>;
135		pagesize = <8>;
136	};
137};
138
139/*
140 * This board also has a microSD slot which we will not support upstream
141 * because we cannot directly switch voltages in software.
142 */
143&mmc0 {
144	pinctrl-0 = <&mmc_pins>;
145	pinctrl-1 = <&mmc_pins>;
146	pinctrl-names = "default", "state_uhs";
147
148	vmmc-supply = <&reg_3p3v>;
149	vqmmc-supply = <&reg_1p8v>;
150	mmc-hs200-1_8v;
151	mmc-hs400-1_8v;
152	bus-width = <8>;
153	no-sd;
154	no-sdio;
155	non-removable;
156	full-pwr-cycle-in-suspend;
157	status = "okay";
158};
159
160&pcie0_clkref {
161	compatible = "gpio-gate-clock";
162	clocks = <&rc21012_pci>;
163	enable-gpios = <&gpio2 15 GPIO_ACTIVE_LOW>;
164	/delete-property/ clock-frequency;
165};
166
167&pciec0 {
168	reset-gpio = <&gpio_exp_20 0 GPIO_ACTIVE_LOW>;
169	status = "okay";
170};
171
172&pfc {
173	pinctrl-0 = <&scif_clk_pins>;
174	pinctrl-names = "default";
175
176	hscif0_pins: hscif0 {
177		groups = "hscif0_data", "hscif0_ctrl";
178		function = "hscif0";
179	};
180
181	i2c0_pins: i2c0 {
182		groups = "i2c0";
183		function = "i2c0";
184	};
185
186	i2c4_pins: i2c4 {
187		groups = "i2c4";
188		function = "i2c4";
189	};
190
191	mmc_pins: mmc {
192		groups = "mmc_data8", "mmc_ctrl", "mmc_ds";
193		function = "mmc";
194		power-source = <1800>;
195	};
196
197	scif0_pins: scif0 {
198		groups = "scif0_data", "scif0_ctrl";
199		function = "scif0";
200	};
201
202	scif_clk_pins: scif_clk {
203		groups = "scif_clk";
204		function = "scif_clk";
205	};
206};
207
208&rwdt {
209	timeout-sec = <60>;
210	status = "okay";
211};
212
213&scif0 {
214	pinctrl-0 = <&scif0_pins>;
215	pinctrl-names = "default";
216
217	uart-has-rtscts;
218	status = "okay";
219};
220
221&scif_clk {
222	clock-frequency = <24000000>;
223};
224
225&ufs {
226	status = "okay";
227};
228
229&ufs30_clk {
230	compatible = "gpio-gate-clock";
231	clocks = <&rc21012_ufs>;
232	enable-gpios = <&gpio_exp_20 4 GPIO_ACTIVE_LOW>;
233	/delete-property/ clock-frequency;
234};