xref: /linux/arch/arm64/boot/dts/renesas/r8a779f4-s4sk.dts (revision 6efc0ab3b05de0d7bab8ec0597214e4788251071) 
1// SPDX-License-Identifier: (GPL-2.0 OR MIT)
2/*
3 * Device Tree Source for the R-Car S4 Starter Kit board
4 *
5 * Copyright (C) 2023 Renesas Electronics Corp.
6 */
7
8/dts-v1/;
9#include <dt-bindings/gpio/gpio.h>
10#include "r8a779f4.dtsi"
11
12/ {
13	model = "R-Car S4 Starter Kit board";
14	compatible = "renesas,s4sk", "renesas,r8a779f4", "renesas,r8a779f0";
15
16	aliases {
17		i2c0 = &i2c0;
18		i2c1 = &i2c1;
19		i2c2 = &i2c2;
20		i2c3 = &i2c3;
21		i2c4 = &i2c4;
22		i2c5 = &i2c5;
23		serial0 = &hscif0;
24		serial1 = &hscif1;
25		ethernet0 = &rswitch;
26	};
27
28	chosen {
29		bootargs = "ignore_loglevel rw root=/dev/nfs ip=on";
30		stdout-path = "serial0:921600n8";
31	};
32
33	memory@48000000 {
34		device_type = "memory";
35		/* first 128MB is reserved for secure area. */
36		/* The last 512MB is reserved for CR. */
37		reg = <0x0 0x48000000 0x0 0x58000000>;
38	};
39
40	memory@480000000 {
41		device_type = "memory";
42		reg = <0x4 0x80000000 0x0 0x80000000>;
43	};
44
45	vcc_sdhi: regulator-vcc-sdhi {
46		compatible = "regulator-fixed";
47		regulator-name = "SDHI Vcc";
48		regulator-min-microvolt = <3300000>;
49		regulator-max-microvolt = <3300000>;
50		gpio = <&gpio1 24 GPIO_ACTIVE_HIGH>;
51		enable-active-high;
52	};
53};
54
55&eth_serdes {
56	status = "okay";
57};
58
59&extal_clk {
60	clock-frequency = <20000000>;
61};
62
63&extalr_clk {
64	clock-frequency = <32768>;
65};
66
67&hscif0 {
68	pinctrl-0 = <&hscif0_pins>;
69	pinctrl-names = "default";
70
71	uart-has-rtscts;
72	status = "okay";
73};
74
75&hscif1 {
76	pinctrl-0 = <&hscif1_pins>;
77	pinctrl-names = "default";
78
79	uart-has-rtscts;
80	status = "okay";
81};
82
83&i2c2 {
84	pinctrl-0 = <&i2c2_pins>;
85	pinctrl-names = "default";
86
87	status = "okay";
88	clock-frequency = <400000>;
89};
90
91&i2c4 {
92	pinctrl-0 = <&i2c4_pins>;
93	pinctrl-names = "default";
94
95	status = "okay";
96	clock-frequency = <400000>;
97};
98
99&i2c5 {
100	pinctrl-0 = <&i2c5_pins>;
101	pinctrl-names = "default";
102
103	status = "okay";
104	clock-frequency = <400000>;
105
106	eeprom@50 {
107		compatible = "st,24c16", "atmel,24c16";
108		reg = <0x50>;
109		pagesize = <16>;
110	};
111};
112
113&mmc0 {
114	pinctrl-0 = <&sd_pins>;
115	pinctrl-names = "default";
116
117	vmmc-supply = <&vcc_sdhi>;
118	cd-gpios = <&gpio1 23 GPIO_ACTIVE_LOW>;
119	bus-width = <4>;
120	status = "okay";
121};
122
123&pfc {
124	pinctrl-0 = <&scif_clk_pins>;
125	pinctrl-names = "default";
126
127	hscif0_pins: hscif0 {
128		groups = "hscif0_data", "hscif0_ctrl";
129		function = "hscif0";
130	};
131
132	hscif1_pins: hscif1 {
133		groups = "hscif1_data", "hscif1_ctrl";
134		function = "hscif1";
135	};
136
137	i2c2_pins: i2c2 {
138		groups = "i2c2";
139		function = "i2c2";
140	};
141
142	i2c4_pins: i2c4 {
143		groups = "i2c4";
144		function = "i2c4";
145	};
146
147	i2c5_pins: i2c5 {
148		groups = "i2c5";
149		function = "i2c5";
150	};
151
152	scif_clk_pins: scif_clk {
153		groups = "scif_clk";
154		function = "scif_clk";
155	};
156
157	sd_pins: sd {
158		groups = "mmc_data4", "mmc_ctrl";
159		function = "mmc";
160		power-source = <3300>;
161	};
162
163	tsn0_pins: tsn0 {
164		groups = "tsn0_mdio_b", "tsn0_link_b";
165		function = "tsn0";
166		drive-strength = <18>;
167		power-source = <3300>;
168	};
169
170	tsn1_pins: tsn1 {
171		groups = "tsn1_mdio_b", "tsn1_link_b";
172		function = "tsn1";
173		drive-strength = <18>;
174		power-source = <3300>;
175	};
176};
177
178&rswitch {
179	pinctrl-0 = <&tsn0_pins>, <&tsn1_pins>;
180	pinctrl-names = "default";
181	status = "okay";
182
183	ethernet-ports {
184		#address-cells = <1>;
185		#size-cells = <0>;
186
187		port@0 {
188			reg = <0>;
189			phy-handle = <&ic99>;
190			phy-mode = "sgmii";
191			phys = <&eth_serdes 0>;
192
193			mdio {
194				#address-cells = <1>;
195				#size-cells = <0>;
196
197				ic99: ethernet-phy@1 {
198					reg = <1>;
199					compatible = "ethernet-phy-ieee802.3-c45";
200					interrupt-parent = <&gpio3>;
201					interrupts = <10 IRQ_TYPE_LEVEL_LOW>;
202				};
203			};
204		};
205
206		port@1 {
207			reg = <1>;
208			phy-handle = <&ic102>;
209			phy-mode = "sgmii";
210			phys = <&eth_serdes 1>;
211
212			mdio {
213				#address-cells = <1>;
214				#size-cells = <0>;
215
216				ic102: ethernet-phy@2 {
217					reg = <2>;
218					compatible = "ethernet-phy-ieee802.3-c45";
219					interrupt-parent = <&gpio3>;
220					interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
221				};
222			};
223		};
224
225		port@2 {
226			status = "disabled";
227		};
228	};
229};
230
231&rwdt {
232	timeout-sec = <60>;
233	status = "okay";
234};
235
236&scif_clk {
237	clock-frequency = <24000000>;
238};
239
240&ufs {
241	status = "okay";
242};
243
244&ufs30_clk {
245	clock-frequency = <38400000>;
246};
247