arch/arm64/boot/dts/exynos/exynos850-e850-96.dts

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * WinLink E850-96 board device tree source
   4  *
   5  * Copyright (C) 2018 Samsung Electronics Co., Ltd.
   6  * Copyright (C) 2021 Linaro Ltd.
   7  *
   8  * Device tree source file for WinLink's E850-96 board which is based on
   9  * Samsung Exynos850 SoC.
  10  */
  11
  12 /dts-v1/;
  13
  14 #include "exynos850.dtsi"
  15 #include <dt-bindings/gpio/gpio.h>
  16 #include <dt-bindings/input/input.h>
  17 #include <dt-bindings/leds/common.h>
  18
  19 / {
  20         model = "WinLink E850-96 board";
  21         compatible = "winlink,e850-96", "samsung,exynos850";
  22
  23         aliases {
  24                 mmc0 = &mmc_0;
  25                 serial0 = &serial_0;
  26         };
  27
  28         chosen {
  29                 stdout-path = &serial_0;
  30         };
  31
  32         connector {
  33                 compatible = "gpio-usb-b-connector", "usb-b-connector";
  34                 label = "micro-USB";
  35                 type = "micro";
  36                 vbus-supply = <&reg_usb_host_vbus>;
  37                 id-gpios = <&gpa0 0 GPIO_ACTIVE_LOW>;
  38                 pinctrl-names = "default";
  39                 pinctrl-0 = <&micro_usb_det_pins>;
  40
  41                 port {
  42                         usb_dr_connector: endpoint {
  43                                 remote-endpoint = <&usb1_drd_sw>;
  44                         };
  45                 };
  46         };
  47
  48         /*
  49          * RAM: 4 GiB (eMCP):
  50          *   - 2 GiB at 0x80000000
  51          *   - 2 GiB at 0x880000000
  52          *
  53          * 0xbab00000..0xbfffffff: secure memory (85 MiB).
  54          */
  55         memory@80000000 {
  56                 device_type = "memory";
  57                 reg = <0x0 0x80000000 0x3ab00000>,
  58                       <0x0 0xc0000000 0x40000000>,
  59                       <0x8 0x80000000 0x80000000>;
  60         };
  61
  62         gpio-keys {
  63                 compatible = "gpio-keys";
  64                 pinctrl-names = "default";
  65                 pinctrl-0 = <&key_voldown_pins &key_volup_pins>;
  66
  67                 volume-down-key {
  68                         label = "Volume Down";
  69                         linux,code = <KEY_VOLUMEDOWN>;
  70                         gpios = <&gpa1 0 GPIO_ACTIVE_LOW>;
  71                 };
  72
  73                 volume-up-key {
  74                         label = "Volume Up";
  75                         linux,code = <KEY_VOLUMEUP>;
  76                         gpios = <&gpa0 7 GPIO_ACTIVE_LOW>;
  77                 };
  78         };
  79
  80         leds {
  81                 compatible = "gpio-leds";
  82
  83                 /* HEART_BEAT_LED */
  84                 user_led1: led-1 {
  85                         label = "yellow:user1";
  86                         gpios = <&gpg2 2 GPIO_ACTIVE_HIGH>;
  87                         color = <LED_COLOR_ID_YELLOW>;
  88                         function = LED_FUNCTION_HEARTBEAT;
  89                         linux,default-trigger = "heartbeat";
  90                 };
  91
  92                 /* eMMC_LED */
  93                 user_led2: led-2 {
  94                         label = "yellow:user2";
  95                         gpios = <&gpg2 3 GPIO_ACTIVE_HIGH>;
  96                         color = <LED_COLOR_ID_YELLOW>;
  97                         linux,default-trigger = "mmc0";
  98                 };
  99
 100                 /* SD_LED */
 101                 user_led3: led-3 {
 102                         label = "white:user3";
 103                         gpios = <&gpg2 4 GPIO_ACTIVE_HIGH>;
 104                         color = <LED_COLOR_ID_WHITE>;
 105                         function = LED_FUNCTION_SD;
 106                         linux,default-trigger = "mmc2";
 107                 };
 108
 109                 /* WIFI_LED */
 110                 wlan_active_led: led-4 {
 111                         label = "yellow:wlan";
 112                         gpios = <&gpg2 6 GPIO_ACTIVE_HIGH>;
 113                         color = <LED_COLOR_ID_YELLOW>;
 114                         function = LED_FUNCTION_WLAN;
 115                         linux,default-trigger = "phy0tx";
 116                         default-state = "off";
 117                 };
 118
 119                 /* BLUETOOTH_LED */
 120                 bt_active_led: led-5 {
 121                         label = "blue:bt";
 122                         gpios = <&gpg2 7 GPIO_ACTIVE_HIGH>;
 123                         color = <LED_COLOR_ID_BLUE>;
 124                         function = LED_FUNCTION_BLUETOOTH;
 125                         linux,default-trigger = "hci0-power";
 126                         default-state = "off";
 127                 };
 128         };
 129
 130         /* TODO: Remove this once PMIC is implemented  */
 131         reg_dummy: regulator-0 {
 132                 compatible = "regulator-fixed";
 133                 regulator-name = "dummy_reg";
 134         };
 135
 136         reg_usb_host_vbus: regulator-1 {
 137                 compatible = "regulator-fixed";
 138                 regulator-name = "usb_host_vbus";
 139                 regulator-min-microvolt = <5000000>;
 140                 regulator-max-microvolt = <5000000>;
 141                 gpio = <&gpa3 5 GPIO_ACTIVE_LOW>;
 142         };
 143
 144         reserved-memory {
 145                 #address-cells = <2>;
 146                 #size-cells = <1>;
 147                 ranges;
 148
 149                 ramoops@f0000000 {
 150                         compatible = "ramoops";
 151                         reg = <0x0 0xf0000000 0x200000>;
 152                         record-size = <0x20000>;
 153                         console-size = <0x20000>;
 154                         ftrace-size = <0x100000>;
 155                         pmsg-size = <0x20000>;
 156                 };
 157         };
 158
 159         /*
 160          * RTC clock (XrtcXTI); external, must be 32.768 kHz.
 161          *
 162          * TODO: Remove this once RTC clock is implemented properly as part of
 163          *       PMIC driver.
 164          */
 165         rtcclk: clock-rtcclk {
 166                 compatible = "fixed-clock";
 167                 clock-output-names = "rtcclk";
 168                 #clock-cells = <0>;
 169                 clock-frequency = <32768>;
 170         };
 171 };
 172
 173 &cmu_hsi {
 174         clocks = <&oscclk>, <&rtcclk>,
 175                  <&cmu_top CLK_DOUT_HSI_BUS>,
 176                  <&cmu_top CLK_DOUT_HSI_MMC_CARD>,
 177                  <&cmu_top CLK_DOUT_HSI_USB20DRD>;
 178         clock-names = "oscclk", "rtcclk", "dout_hsi_bus",
 179                       "dout_hsi_mmc_card", "dout_hsi_usb20drd";
 180 };
 181
 182 &mmc_0 {
 183         status = "okay";
 184         mmc-hs200-1_8v;
 185         mmc-hs400-1_8v;
 186         cap-mmc-highspeed;
 187         non-removable;
 188         mmc-hs400-enhanced-strobe;
 189         card-detect-delay = <200>;
 190         clock-frequency = <800000000>;
 191         bus-width = <8>;
 192         samsung,dw-mshc-ciu-div = <3>;
 193         samsung,dw-mshc-sdr-timing = <0 4>;
 194         samsung,dw-mshc-ddr-timing = <2 4>;
 195         samsung,dw-mshc-hs400-timing = <0 2>;
 196
 197         pinctrl-names = "default";
 198         pinctrl-0 = <&sd0_clk_pins &sd0_cmd_pins &sd0_rdqs_pins &sd0_nreset_pins
 199                      &sd0_bus1_pins &sd0_bus4_pins &sd0_bus8_pins>;
 200 };
 201
 202 &oscclk {
 203         clock-frequency = <26000000>;
 204 };
 205
 206 &pinctrl_alive {
 207         key_voldown_pins: key-voldown-pins {
 208                 samsung,pins = "gpa1-0";
 209                 samsung,pin-function = <EXYNOS_PIN_FUNC_EINT>;
 210                 samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
 211                 samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV1>;
 212         };
 213
 214         key_volup_pins: key-volup-pins {
 215                 samsung,pins = "gpa0-7";
 216                 samsung,pin-function = <EXYNOS_PIN_FUNC_EINT>;
 217                 samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
 218                 samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV1>;
 219         };
 220
 221         micro_usb_det_pins: micro-usb-det-pins {
 222                 samsung,pins = "gpa0-0";
 223                 samsung,pin-function = <EXYNOS_PIN_FUNC_INPUT>;
 224                 samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
 225         };
 226 };
 227
 228 &rtc {
 229         status = "okay";
 230         clocks = <&cmu_apm CLK_GOUT_RTC_PCLK>, <&rtcclk>;
 231         clock-names = "rtc", "rtc_src";
 232 };
 233
 234 &serial_0 {
 235         status = "okay";
 236         pinctrl-names = "default";
 237         pinctrl-0 = <&uart1_pins>;
 238 };
 239
 240 &usbdrd {
 241         status = "okay";
 242         vdd10-supply = <&reg_dummy>;
 243         vdd33-supply = <&reg_dummy>;
 244 };
 245
 246 &usbdrd_dwc3 {
 247         dr_mode = "otg";
 248         usb-role-switch;
 249         role-switch-default-mode = "host";
 250
 251         port {
 252                 usb1_drd_sw: endpoint {
 253                         remote-endpoint = <&usb_dr_connector>;
 254                 };
 255         };
 256 };
 257
 258 &usbdrd_phy {
 259         status = "okay";
 260 };
 261
 262 &usi_uart {
 263         samsung,clkreq-on; /* needed for UART mode */
 264         status = "okay";
 265 };
 266
 267 &watchdog_cl0 {
 268         status = "okay";
 269 };
 270
 271 &watchdog_cl1 {
 272         status = "okay";
 273 };