arch/arm/boot/dts/exynos4412-smdk4412.dts

   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 {
 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 {
 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 };