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	chosen {
 26		bootargs = "root=/dev/ram0 rw ramdisk=8192 initrd=0x41000000,8M init=/linuxrc";
 27		stdout-path = "serial1:115200n8";
 28	};
 29
 30	fixed-rate-clocks {
 31		xxti {
 32			compatible = "samsung,clock-xxti";
 33			clock-frequency = <0>;
 34		};
 35
 36		xusbxti {
 37			compatible = "samsung,clock-xusbxti";
 38			clock-frequency = <24000000>;
 39		};
 40
 41		pmic_ap_clk: pmic-ap-clk {
 42			/* Workaround for missing clock on PMIC */
 43			compatible = "fixed-clock";
 44			#clock-cells = <0>;
 45			clock-frequency = <32768>;
 46		};
 47	};
 48};
 49
 50&cpu_thermal {
 51	cooling-maps {
 52		cooling_map0: map0 {
 53			/* Corresponds to 800MHz at freq_table */
 54			cooling-device = <&cpu0 7 7>, <&cpu1 7 7>,
 55					 <&cpu2 7 7>, <&cpu3 7 7>;
 56		};
 57		cooling_map1: map1 {
 58			/* Corresponds to 200MHz at freq_table */
 59			cooling-device = <&cpu0 13 13>, <&cpu1 13 13>,
 60					 <&cpu2 13 13>, <&cpu3 13 13>;
 61		};
 62	};
 63};
 64
 65&keypad {
 66	samsung,keypad-num-rows = <3>;
 67	samsung,keypad-num-columns = <8>;
 68	linux,keypad-no-autorepeat;
 69	wakeup-source;
 70	pinctrl-0 = <&keypad_rows &keypad_cols>;
 71	pinctrl-names = "default";
 72	status = "okay";
 73
 74	key-1 {
 75		keypad,row = <1>;
 76		keypad,column = <3>;
 77		linux,code = <2>;
 78	};
 79
 80	key-2 {
 81		keypad,row = <1>;
 82		keypad,column = <4>;
 83		linux,code = <3>;
 84	};
 85
 86	key-3 {
 87		keypad,row = <1>;
 88		keypad,column = <5>;
 89		linux,code = <4>;
 90	};
 91
 92	key-4 {
 93		keypad,row = <1>;
 94		keypad,column = <6>;
 95		linux,code = <5>;
 96	};
 97
 98	key-5 {
 99		keypad,row = <1>;
100		keypad,column = <7>;
101		linux,code = <6>;
102	};
103
104	key-A {
105		keypad,row = <2>;
106		keypad,column = <6>;
107		linux,code = <30>;
108	};
109
110	key-B {
111		keypad,row = <2>;
112		keypad,column = <7>;
113		linux,code = <48>;
114	};
115
116	key-C {
117		keypad,row = <0>;
118		keypad,column = <5>;
119		linux,code = <46>;
120	};
121
122	key-D {
123		keypad,row = <2>;
124		keypad,column = <5>;
125		linux,code = <32>;
126	};
127
128	key-E {
129		keypad,row = <0>;
130		keypad,column = <7>;
131		linux,code = <18>;
132	};
133};
134
135&pinctrl_1 {
136	keypad_rows: keypad-rows-pins {
137		samsung,pins = "gpx2-0", "gpx2-1", "gpx2-2";
138		samsung,pin-function = <EXYNOS_PIN_FUNC_3>;
139		samsung,pin-pud = <EXYNOS_PIN_PULL_UP>;
140		samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
141	};
142
143	keypad_cols: keypad-cols-pins {
144		samsung,pins = "gpx1-0", "gpx1-1", "gpx1-2", "gpx1-3",
145			       "gpx1-4", "gpx1-5", "gpx1-6", "gpx1-7";
146		samsung,pin-function = <EXYNOS_PIN_FUNC_3>;
147		samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
148		samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
149	};
150};
151
152&rtc {
153	clocks = <&clock CLK_RTC>, <&pmic_ap_clk>;
154	clock-names = "rtc", "rtc_src";
155};
156
157&sdhci_2 {
158	bus-width = <4>;
159	pinctrl-0 = <&sd2_clk &sd2_cmd &sd2_bus4 &sd2_cd>;
160	pinctrl-names = "default";
161	status = "okay";
162};
163
164&serial_0 {
165	status = "okay";
166};
167
168&serial_1 {
169	status = "okay";
170};
171
172&serial_2 {
173	status = "okay";
174};
175
176&serial_3 {
177	status = "okay";
178};