linux_dsm_epyc7002/arch/arm/boot/dts/ste-nomadik-nhk15.dts

/*
 * Device Tree for the ST-Ericsson Nomadik S8815 board
 * Produced by Calao Systems
 */

/dts-v1/;
#include <dt-bindings/interrupt-controller/irq.h>
#include <dt-bindings/gpio/gpio.h>
#include "ste-nomadik-stn8815.dtsi"

/ {
	model = "Nomadik STN8815NHK";
	compatible = "st,nomadik-nhk-15";

	chosen {
		bootargs = "root=/dev/ram0 console=ttyAMA1,115200n8 earlyprintk";
	};

	aliases {
		serial0 = &uart0;
		serial1 = &uart1;
		stmpe-i2c0 = &stmpe0;
		stmpe-i2c1 = &stmpe1;
	};

	pinctrl {
		uart0 {
			uart0_nhk_mode: uart0_mux {
				u0_default_mux {
					function = "u0";
					groups = "u0txrx_a_1", "u0ctsrts_a_1";
				};
			};
		};

		stmpe2401_1 {
			stmpe2401_1_nhk_mode: stmpe2401_1_nhk {
				nhk_cfg1 {
					pins = "GPIO76_B20"; // IRQ line
					ste,input = <0>;
				};
				nhk_cfg2 {
					pins = "GPIO77_B8"; // reset line
					ste,output = <1>;
				};
			};
		};
		stmpe2401_2 {
			stmpe2401_2_nhk_mode: stmpe2401_2_nhk {
				nhk_cfg1 {
					pins = "GPIO78_A8"; // IRQ line
					ste,input = <0>;
				};
				nhk_cfg2 {
					pins = "GPIO79_C9"; // reset line
					ste,output = <1>;
				};
			};
		};
	};

	src@101e0000 {
		/* These chrystal outputs are not used on this board */
		disable-sxtalo;
		disable-mxtalo;
	};

	/* This is where the interrupt is routed on the NHK-15 debug board */
	external-bus@34000000 {
		compatible = "simple-bus";
		reg = <0x34000000 0x1000000>;
		#address-cells = <1>;
		#size-cells = <1>;
		ranges = <0 0x34000000 0x1000000>;
		ethernet@300 {
			compatible = "smsc,lan91c111";
			reg = <0x300 0x0fd00>;
			reg-io-width = <2>;
			reset-gpios = <&stmpe_gpio44 10 GPIO_ACTIVE_HIGH>;
			interrupt-parent = <&stmpe_gpio44>;
			interrupts = <11 IRQ_TYPE_EDGE_RISING>;
		};
	};

	i2c0 {
		lis3lv02dl@1d {
			/* Accelerometer */
			compatible = "st,lis3lv02dl-accel";
			reg = <0x1d>;
		};
		stmpe0: stmpe2401@43 {
			compatible = "st,stmpe2401";
			reg = <0x43>;
			reset-gpios = <&gpio2 13 GPIO_ACTIVE_LOW>; // GPIO77
			interrupts = <12 IRQ_TYPE_EDGE_FALLING>; // GPIO76
			interrupt-parent = <&gpio2>;
			interrupt-controller;
			wakeup-source;
			pinctrl-names = "default";
			pinctrl-0 = <&stmpe2401_1_nhk_mode>;
			stmpe_gpio43: stmpe_gpio {
				compatible = "st,stmpe-gpio";
				gpio-controller;
				#gpio-cells = <2>;
				interrupt-controller;
				#interrupt-cells = <2>;
				/* Some pins in alternate functions */
				st,norequest-mask = <0xf0f002>;
			};
			stmpe_keypad {
				compatible = "st,stmpe-keypad";
				debounce-interval = <64>;
				st,scan-count = <8>;
				st,no-autorepeat;
				keypad,num-rows = <8>;
				keypad,num-columns = <8>;
				linux,keymap = <0x00020072 // Vol down
						0x00030073 // Vol up
						0x0100009e // Back
						0x010100e3 // TV out
						0x01020098 // Lock
						0x0103013b // Start
						0x020000a3 // Next
						0x020100a4 // Play
						0x020200a5 // Prev
						0x02030160 // OK
						0x03000069 // Left
						0x0301006a // Right
						0x03020067 // Up
						0x0303006c>; // Down
			};
		};
		stmpe1: stmpe2401@44 {
			compatible = "st,stmpe2401";
			reg = <0x44>;
			reset-gpios = <&gpio2 15 GPIO_ACTIVE_LOW>; // GPIO79
			interrupts = <14 IRQ_TYPE_EDGE_FALLING>; // GPIO78
			interrupt-parent = <&gpio2>;
			interrupt-controller;
			wakeup-source;
			pinctrl-names = "default";
			pinctrl-0 = <&stmpe2401_2_nhk_mode>;
			stmpe_gpio44: stmpe_gpio {
				compatible = "st,stmpe-gpio";
				gpio-controller;
				#gpio-cells = <2>;
				interrupt-controller;
				#interrupt-cells = <2>;
				/*
				 * This will turn off SATA so that MMC/SD
				 * can thrive
				 */
				mmcsd-gpio {
					gpio-hog;
					gpios = <2 0x0>;
					output-low;
					line-name = "SATA EN";
				};
			};
		};
	};

	amba {
		/* Activate RX/TX and CTS/RTS on UART 0 */
		uart0: uart@101fd000 {
			pinctrl-names = "default";
			pinctrl-0 = <&uart0_nhk_mode>;
			status = "okay";
		};
		mmcsd: sdi@101f6000 {
			cd-gpios = <&stmpe_gpio44 7 GPIO_ACTIVE_LOW>;
			wp-gpios = <&stmpe_gpio44 18 GPIO_ACTIVE_HIGH>;
		};
	};
};