0001 // SPDX-License-Identifier: GPL-2.0
0002 /*
0003 * Samsung's Exynos4412 based SMDK board device tree source
0004 *
0005 * Copyright (c) 2012-2013 Samsung Electronics Co., Ltd.
0006 * http://www.samsung.com
0007 *
0008 * Device tree source file for Samsung's SMDK4412 board which is based on
0009 * Samsung's Exynos4412 SoC.
0010 */
0011
0012 /dts-v1/;
0013 #include "exynos4412.dtsi"
0014 #include "exynos-mfc-reserved-memory.dtsi"
0015
0016 / {
0017 model = "Samsung SMDK evaluation board based on Exynos4412";
0018 compatible = "samsung,smdk4412", "samsung,exynos4412", "samsung,exynos4";
0019
0020 memory@40000000 {
0021 device_type = "memory";
0022 reg = <0x40000000 0x40000000>;
0023 };
0024
0025 chosen {
0026 bootargs = "root=/dev/ram0 rw ramdisk=8192 initrd=0x41000000,8M init=/linuxrc";
0027 stdout-path = "serial1:115200n8";
0028 };
0029
0030 fixed-rate-clocks {
0031 xxti {
0032 compatible = "samsung,clock-xxti";
0033 clock-frequency = <0>;
0034 };
0035
0036 xusbxti {
0037 compatible = "samsung,clock-xusbxti";
0038 clock-frequency = <24000000>;
0039 };
0040
0041 pmic_ap_clk: pmic-ap-clk {
0042 /* Workaround for missing clock on PMIC */
0043 compatible = "fixed-clock";
0044 #clock-cells = <0>;
0045 clock-frequency = <32768>;
0046 };
0047 };
0048 };
0049
0050 &cpu_thermal {
0051 cooling-maps {
0052 cooling_map0: map0 {
0053 /* Corresponds to 800MHz at freq_table */
0054 cooling-device = <&cpu0 7 7>, <&cpu1 7 7>,
0055 <&cpu2 7 7>, <&cpu3 7 7>;
0056 };
0057 cooling_map1: map1 {
0058 /* Corresponds to 200MHz at freq_table */
0059 cooling-device = <&cpu0 13 13>, <&cpu1 13 13>,
0060 <&cpu2 13 13>, <&cpu3 13 13>;
0061 };
0062 };
0063 };
0064
0065 &keypad {
0066 samsung,keypad-num-rows = <3>;
0067 samsung,keypad-num-columns = <8>;
0068 linux,keypad-no-autorepeat;
0069 wakeup-source;
0070 pinctrl-0 = <&keypad_rows &keypad_cols>;
0071 pinctrl-names = "default";
0072 status = "okay";
0073
0074 key-1 {
0075 keypad,row = <1>;
0076 keypad,column = <3>;
0077 linux,code = <2>;
0078 };
0079
0080 key-2 {
0081 keypad,row = <1>;
0082 keypad,column = <4>;
0083 linux,code = <3>;
0084 };
0085
0086 key-3 {
0087 keypad,row = <1>;
0088 keypad,column = <5>;
0089 linux,code = <4>;
0090 };
0091
0092 key-4 {
0093 keypad,row = <1>;
0094 keypad,column = <6>;
0095 linux,code = <5>;
0096 };
0097
0098 key-5 {
0099 keypad,row = <1>;
0100 keypad,column = <7>;
0101 linux,code = <6>;
0102 };
0103
0104 key-A {
0105 keypad,row = <2>;
0106 keypad,column = <6>;
0107 linux,code = <30>;
0108 };
0109
0110 key-B {
0111 keypad,row = <2>;
0112 keypad,column = <7>;
0113 linux,code = <48>;
0114 };
0115
0116 key-C {
0117 keypad,row = <0>;
0118 keypad,column = <5>;
0119 linux,code = <46>;
0120 };
0121
0122 key-D {
0123 keypad,row = <2>;
0124 keypad,column = <5>;
0125 linux,code = <32>;
0126 };
0127
0128 key-E {
0129 keypad,row = <0>;
0130 keypad,column = <7>;
0131 linux,code = <18>;
0132 };
0133 };
0134
0135 &pinctrl_1 {
0136 keypad_rows: keypad-rows-pins {
0137 samsung,pins = "gpx2-0", "gpx2-1", "gpx2-2";
0138 samsung,pin-function = <EXYNOS_PIN_FUNC_3>;
0139 samsung,pin-pud = <EXYNOS_PIN_PULL_UP>;
0140 samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
0141 };
0142
0143 keypad_cols: keypad-cols-pins {
0144 samsung,pins = "gpx1-0", "gpx1-1", "gpx1-2", "gpx1-3",
0145 "gpx1-4", "gpx1-5", "gpx1-6", "gpx1-7";
0146 samsung,pin-function = <EXYNOS_PIN_FUNC_3>;
0147 samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
0148 samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
0149 };
0150 };
0151
0152 &rtc {
0153 clocks = <&clock CLK_RTC>, <&pmic_ap_clk>;
0154 clock-names = "rtc", "rtc_src";
0155 };
0156
0157 &sdhci_2 {
0158 bus-width = <4>;
0159 pinctrl-0 = <&sd2_clk &sd2_cmd &sd2_bus4 &sd2_cd>;
0160 pinctrl-names = "default";
0161 status = "okay";
0162 };
0163
0164 &serial_0 {
0165 status = "okay";
0166 };
0167
0168 &serial_1 {
0169 status = "okay";
0170 };
0171
0172 &serial_2 {
0173 status = "okay";
0174 };
0175
0176 &serial_3 {
0177 status = "okay";
0178 };
