// SPDX-License-Identifier: GPL-2.0
/*
* WinLink E850-96 board device tree source
*
* Copyright (C) 2018 Samsung Electronics Co., Ltd.
* Copyright (C) 2021 Linaro Ltd.
*
* Device tree source file for WinLink's E850-96 board which is based on
* Samsung Exynos850 SoC.
*/
/dts-v1/;
#include "exynos850.dtsi"
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/input/input.h>
#include <dt-bindings/leds/common.h>
/ {
model = "WinLink E850-96 board";
compatible = "winlink,e850-96", "samsung,exynos850";
aliases {
mmc0 = &mmc_0;
serial0 = &serial_0;
};
chosen {
stdout-path = &serial_0;
};
connector {
compatible = "gpio-usb-b-connector", "usb-b-connector";
label = "micro-USB";
type = "micro";
vbus-supply = <®_usb_host_vbus>;
id-gpios = <&gpa0 0 GPIO_ACTIVE_LOW>;
pinctrl-names = "default";
pinctrl-0 = <µ_usb_det_pins>;
port {
usb_dr_connector: endpoint {
remote-endpoint = <&usb1_drd_sw>;
};
};
};
/*
* RAM: 4 GiB (eMCP):
* - 2 GiB at 0x80000000
* - 2 GiB at 0x880000000
*
* 0xbab00000..0xbfffffff: secure memory (85 MiB).
*/
memory@80000000 {
device_type = "memory";
reg = <0x0 0x80000000 0x3ab00000>,
<0x0 0xc0000000 0x40000000>,
<0x8 0x80000000 0x80000000>;
};
gpio-keys {
compatible = "gpio-keys";
pinctrl-names = "default";
pinctrl-0 = <&key_voldown_pins &key_volup_pins>;
volume-down-key {
label = "Volume Down";
linux,code = <KEY_VOLUMEDOWN>;
gpios = <&gpa1 0 GPIO_ACTIVE_LOW>;
};
volume-up-key {
label = "Volume Up";
linux,code = <KEY_VOLUMEUP>;
gpios = <&gpa0 7 GPIO_ACTIVE_LOW>;
};
};
leds {
compatible = "gpio-leds";
/* HEART_BEAT_LED */
user_led1: led-1 {
label = "yellow:user1";
gpios = <&gpg2 2 GPIO_ACTIVE_HIGH>;
color = <LED_COLOR_ID_YELLOW>;
function = LED_FUNCTION_HEARTBEAT;
linux,default-trigger = "heartbeat";
};
/* eMMC_LED */
user_led2: led-2 {
label = "yellow:user2";
gpios = <&gpg2 3 GPIO_ACTIVE_HIGH>;
color = <LED_COLOR_ID_YELLOW>;
linux,default-trigger = "mmc0";
};
/* SD_LED */
user_led3: led-3 {
label = "white:user3";
gpios = <&gpg2 4 GPIO_ACTIVE_HIGH>;
color = <LED_COLOR_ID_WHITE>;
function = LED_FUNCTION_SD;
linux,default-trigger = "mmc2";
};
/* WIFI_LED */
wlan_active_led: led-4 {
label = "yellow:wlan";
gpios = <&gpg2 6 GPIO_ACTIVE_HIGH>;
color = <LED_COLOR_ID_YELLOW>;
function = LED_FUNCTION_WLAN;
linux,default-trigger = "phy0tx";
default-state = "off";
};
/* BLUETOOTH_LED */
bt_active_led: led-5 {
label = "blue:bt";
gpios = <&gpg2 7 GPIO_ACTIVE_HIGH>;
color = <LED_COLOR_ID_BLUE>;
function = LED_FUNCTION_BLUETOOTH;
linux,default-trigger = "hci0-power";
default-state = "off";
};
};
/* TODO: Remove this once PMIC is implemented */
reg_dummy: regulator-0 {
compatible = "regulator-fixed";
regulator-name = "dummy_reg";
};
reg_usb_host_vbus: regulator-1 {
compatible = "regulator-fixed";
regulator-name = "usb_host_vbus";
regulator-min-microvolt = <5000000>;
regulator-max-microvolt = <5000000>;
gpio = <&gpa3 5 GPIO_ACTIVE_LOW>;
};
reserved-memory {
#address-cells = <2>;
#size-cells = <1>;
ranges;
ramoops@f0000000 {
compatible = "ramoops";
reg = <0x0 0xf0000000 0x200000>;
record-size = <0x20000>;
console-size = <0x20000>;
ftrace-size = <0x100000>;
pmsg-size = <0x20000>;
};
};
/*
* RTC clock (XrtcXTI); external, must be 32.768 kHz.
*
* TODO: Remove this once RTC clock is implemented properly as part of
* PMIC driver.
*/
rtcclk: clock-rtcclk {
compatible = "fixed-clock";
clock-output-names = "rtcclk";
#clock-cells = <0>;
clock-frequency = <32768>;
};
};
&cmu_hsi {
clocks = <&oscclk>, <&rtcclk>,
<&cmu_top CLK_DOUT_HSI_BUS>,
<&cmu_top CLK_DOUT_HSI_MMC_CARD>,
<&cmu_top CLK_DOUT_HSI_USB20DRD>;
clock-names = "oscclk", "rtcclk", "dout_hsi_bus",
"dout_hsi_mmc_card", "dout_hsi_usb20drd";
};
&mmc_0 {
status = "okay";
mmc-hs200-1_8v;
mmc-hs400-1_8v;
cap-mmc-highspeed;
non-removable;
mmc-hs400-enhanced-strobe;
card-detect-delay = <200>;
clock-frequency = <800000000>;
bus-width = <8>;
samsung,dw-mshc-ciu-div = <3>;
samsung,dw-mshc-sdr-timing = <0 4>;
samsung,dw-mshc-ddr-timing = <2 4>;
samsung,dw-mshc-hs400-timing = <0 2>;
pinctrl-names = "default";
pinctrl-0 = <&sd0_clk_pins &sd0_cmd_pins &sd0_rdqs_pins &sd0_nreset_pins
&sd0_bus1_pins &sd0_bus4_pins &sd0_bus8_pins>;
};
&oscclk {
clock-frequency = <26000000>;
};
&pinctrl_alive {
key_voldown_pins: key-voldown-pins {
samsung,pins = "gpa1-0";
samsung,pin-function = <EXYNOS_PIN_FUNC_EINT>;
samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV1>;
};
key_volup_pins: key-volup-pins {
samsung,pins = "gpa0-7";
samsung,pin-function = <EXYNOS_PIN_FUNC_EINT>;
samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV1>;
};
micro_usb_det_pins: micro-usb-det-pins {
samsung,pins = "gpa0-0";
samsung,pin-function = <EXYNOS_PIN_FUNC_INPUT>;
samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
};
};
&rtc {
status = "okay";
clocks = <&cmu_apm CLK_GOUT_RTC_PCLK>, <&rtcclk>;
clock-names = "rtc", "rtc_src";
};
&serial_0 {
status = "okay";
pinctrl-names = "default";
pinctrl-0 = <&uart1_pins>;
};
&usbdrd {
status = "okay";
vdd10-supply = <®_dummy>;
vdd33-supply = <®_dummy>;
};
&usbdrd_dwc3 {
dr_mode = "otg";
usb-role-switch;
role-switch-default-mode = "host";
port {
usb1_drd_sw: endpoint {
remote-endpoint = <&usb_dr_connector>;
};
};
};
&usbdrd_phy {
status = "okay";
};
&usi_uart {
samsung,clkreq-on; /* needed for UART mode */
status = "okay";
};
&watchdog_cl0 {
status = "okay";
};
&watchdog_cl1 {
status = "okay";
};
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