1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * Samsung's Exynos4412 based SMDK board device tree source
4 *
5 * Copyright (c) 2012-2013 Samsung Electronics Co., Ltd.
6 * http://www.samsung.com
7 *
8 * Device tree source file for Samsung's SMDK4412 board which is based on
9 * Samsung's Exynos4412 SoC.
10 */
11
12 /dts-v1/;
13 #include "exynos4412.dtsi"
14 #include "exynos-mfc-reserved-memory.dtsi"
15
16 / {
17 model = "Samsung SMDK evaluation board based on Exynos4412";
18 compatible = "samsung,smdk4412", "samsung,exynos4412", "samsung,exynos4";
19
20 memory@40000000 {
21 device_type = "memory";
22 reg = <0x40000000 0x40000000>;
23 };
24
25 aliases {
26 mmc0 = &sdhci_2;
27 };
28
29 chosen {
30 bootargs = "root=/dev/ram0 rw ramdisk=8192 initrd=0x41000000,8M init=/linuxrc";
31 stdout-path = "serial1:115200n8";
32 };
33
34 fixed-rate-clocks {
35 xxti {
36 compatible = "samsung,clock-xxti";
37 clock-frequency = <0>;
38 };
39
40 xusbxti {
41 compatible = "samsung,clock-xusbxti";
42 clock-frequency = <24000000>;
43 };
44
45 pmic_ap_clk: pmic-ap-clk {
46 /* Workaround for missing clock on PMIC */
47 compatible = "fixed-clock";
48 #clock-cells = <0>;
49 clock-frequency = <32768>;
50 };
51 };
52 };
53
54 &cpu_thermal {
55 cooling-maps {
56 cooling_map0: map0 {
57 /* Corresponds to 800MHz at freq_table */
58 cooling-device = <&cpu0 7 7>, <&cpu1 7 7>,
59 <&cpu2 7 7>, <&cpu3 7 7>;
60 };
61 cooling_map1: map1 {
62 /* Corresponds to 200MHz at freq_table */
63 cooling-device = <&cpu0 13 13>, <&cpu1 13 13>,
64 <&cpu2 13 13>, <&cpu3 13 13>;
65 };
66 };
67 };
68
69 &keypad {
70 samsung,keypad-num-rows = <3>;
71 samsung,keypad-num-columns = <8>;
72 linux,input-no-autorepeat;
73 wakeup-source;
74 pinctrl-0 = <&keypad_rows &keypad_cols>;
75 pinctrl-names = "default";
76 status = "okay";
77
78 key-1 {
79 keypad,row = <1>;
80 keypad,column = <3>;
81 linux,code = <2>;
82 };
83
84 key-2 {
85 keypad,row = <1>;
86 keypad,column = <4>;
87 linux,code = <3>;
88 };
89
90 key-3 {
91 keypad,row = <1>;
92 keypad,column = <5>;
93 linux,code = <4>;
94 };
95
96 key-4 {
97 keypad,row = <1>;
98 keypad,column = <6>;
99 linux,code = <5>;
100 };
101
102 key-5 {
103 keypad,row = <1>;
104 keypad,column = <7>;
105 linux,code = <6>;
106 };
107
108 key-a {
109 keypad,row = <2>;
110 keypad,column = <6>;
111 linux,code = <30>;
112 };
113
114 key-b {
115 keypad,row = <2>;
116 keypad,column = <7>;
117 linux,code = <48>;
118 };
119
120 key-c {
121 keypad,row = <0>;
122 keypad,column = <5>;
123 linux,code = <46>;
124 };
125
126 key-d {
127 keypad,row = <2>;
128 keypad,column = <5>;
129 linux,code = <32>;
130 };
131
132 key-e {
133 keypad,row = <0>;
134 keypad,column = <7>;
135 linux,code = <18>;
136 };
137 };
138
139 &pinctrl_1 {
140 keypad_rows: keypad-rows-pins {
141 samsung,pins = "gpx2-0", "gpx2-1", "gpx2-2";
142 samsung,pin-function = <EXYNOS_PIN_FUNC_3>;
143 samsung,pin-pud = <EXYNOS_PIN_PULL_UP>;
144 samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
145 };
146
147 keypad_cols: keypad-cols-pins {
148 samsung,pins = "gpx1-0", "gpx1-1", "gpx1-2", "gpx1-3",
149 "gpx1-4", "gpx1-5", "gpx1-6", "gpx1-7";
150 samsung,pin-function = <EXYNOS_PIN_FUNC_3>;
151 samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
152 samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
153 };
154 };
155
156 &rtc {
157 clocks = <&clock CLK_RTC>, <&pmic_ap_clk>;
158 clock-names = "rtc", "rtc_src";
159 };
160
161 &sdhci_2 {
162 bus-width = <4>;
163 pinctrl-0 = <&sd2_clk &sd2_cmd &sd2_bus4 &sd2_cd>;
164 pinctrl-names = "default";
165 status = "okay";
166 };
167
168 &serial_0 {
169 status = "okay";
170 };
171
172 &serial_1 {
173 status = "okay";
174 };
175
176 &serial_2 {
177 status = "okay";
178 };
179
180 &serial_3 {
181 status = "okay";
182 };
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