1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * Oriole Device Tree
4 *
5 * Copyright 2021-2023 Google LLC
6 * Copyright 2023 Linaro Ltd - <peter.griffin@linaro.org>
7 */
8
9 /dts-v1/;
10
11 #include <dt-bindings/gpio/gpio.h>
12 #include <dt-bindings/input/input.h>
13 #include "gs101-pinctrl.h"
14 #include "gs101.dtsi"
15
16 / {
17 model = "Oriole";
18 compatible = "google,gs101-oriole", "google,gs101";
19
20 aliases {
21 serial0 = &serial_0;
22 };
23
24 chosen {
25 /* Bootloader expects bootargs specified otherwise it crashes */
26 bootargs = "";
27 stdout-path = &serial_0;
28 };
29
30 gpio-keys {
31 compatible = "gpio-keys";
32 pinctrl-0 = <&key_voldown>, <&key_volup>, <&key_power>;
33 pinctrl-names = "default";
34
35 button-vol-down {
36 label = "KEY_VOLUMEDOWN";
37 linux,code = <KEY_VOLUMEDOWN>;
38 gpios = <&gpa7 3 GPIO_ACTIVE_LOW>;
39 wakeup-source;
40 };
41
42 button-vol-up {
43 label = "KEY_VOLUMEUP";
44 linux,code = <KEY_VOLUMEUP>;
45 gpios = <&gpa8 1 GPIO_ACTIVE_LOW>;
46 wakeup-source;
47 };
48
49 button-power {
50 label = "KEY_POWER";
51 linux,code = <KEY_POWER>;
52 gpios = <&gpa10 1 GPIO_ACTIVE_LOW>;
53 wakeup-source;
54 };
55 };
56
57 /* TODO: Remove this once PMIC is implemented */
58 reg_placeholder: regulator-0 {
59 compatible = "regulator-fixed";
60 regulator-name = "placeholder_reg";
61 };
62
63 /* TODO: Remove this once S2MPG11 slave PMIC is implemented */
64 ufs_0_fixed_vcc_reg: regulator-1 {
65 compatible = "regulator-fixed";
66 regulator-name = "ufs-vcc";
67 gpio = <&gpp0 1 GPIO_ACTIVE_HIGH>;
68 regulator-boot-on;
69 enable-active-high;
70 };
71 };
72
73 &ext_24_5m {
74 clock-frequency = <24576000>;
75 };
76
77 &ext_200m {
78 clock-frequency = <200000000>;
79 };
80
81 &hsi2c_8 {
82 status = "okay";
83
84 eeprom: eeprom@50 {
85 compatible = "atmel,24c08";
86 reg = <0x50>;
87 };
88 };
89
90 &hsi2c_12 {
91 status = "okay";
92 /* TODO: add the devices once drivers exist */
93 };
94
95 &pinctrl_far_alive {
96 key_voldown: key-voldown-pins {
97 samsung,pins = "gpa7-3";
98 samsung,pin-function = <GS101_PIN_FUNC_EINT>;
99 samsung,pin-pud = <GS101_PIN_PULL_NONE>;
100 samsung,pin-drv = <GS101_PIN_DRV_2_5_MA>;
101 };
102
103 key_volup: key-volup-pins {
104 samsung,pins = "gpa8-1";
105 samsung,pin-function = <GS101_PIN_FUNC_EINT>;
106 samsung,pin-pud = <GS101_PIN_PULL_NONE>;
107 samsung,pin-drv = <GS101_PIN_DRV_2_5_MA>;
108 };
109 };
110
111 &pinctrl_gpio_alive {
112 key_power: key-power-pins {
113 samsung,pins = "gpa10-1";
114 samsung,pin-function = <GS101_PIN_FUNC_EINT>;
115 samsung,pin-pud = <GS101_PIN_PULL_NONE>;
116 samsung,pin-drv = <GS101_PIN_DRV_2_5_MA>;
117 };
118 };
119
120 &serial_0 {
121 status = "okay";
122 };
123
124 &ufs_0 {
125 status = "okay";
126 vcc-supply = <&ufs_0_fixed_vcc_reg>;
127 };
128
129 &ufs_0_phy {
130 status = "okay";
131 };
132
133 &usbdrd31 {
134 vdd10-supply = <®_placeholder>;
135 vdd33-supply = <®_placeholder>;
136 status = "okay";
137 };
138
139 &usbdrd31_dwc3 {
140 dr_mode = "otg";
141 usb-role-switch;
142 role-switch-default-mode = "peripheral";
143 maximum-speed = "super-speed-plus";
144 status = "okay";
145 };
146
147 &usbdrd31_phy {
148 /* TODO: Update these once PMIC is implemented */
149 pll-supply = <®_placeholder>;
150 dvdd-usb20-supply = <®_placeholder>;
151 vddh-usb20-supply = <®_placeholder>;
152 vdd33-usb20-supply = <®_placeholder>;
153 vdda-usbdp-supply = <®_placeholder>;
154 vddh-usbdp-supply = <®_placeholder>;
155 status = "okay";
156 };
157
158 &usi_uart {
159 samsung,clkreq-on; /* needed for UART mode */
160 status = "okay";
161 };
162
163 &usi8 {
164 samsung,mode = <USI_V2_I2C>;
165 status = "okay";
166 };
167
168 &usi12 {
169 samsung,mode = <USI_V2_I2C>;
170 status = "okay";
171 };
172
173 &watchdog_cl0 {
174 timeout-sec = <30>;
175 status = "okay";
176 };
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.