linux_dsm_epyc7002/arch/arm/boot/dts/exynos5250-snow.dts

/*
 * Google Snow board device tree source
 *
 * Copyright (c) 2012 Google, Inc
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
*/

/dts-v1/;
/include/ "exynos5250.dtsi"
/include/ "cros5250-common.dtsi"

/ {
	model = "Google Snow";
	compatible = "google,snow", "samsung,exynos5250";

	aliases {
		i2c104 = &i2c_104;
	};

	pinctrl@11400000 {
		sd3_clk: sd3-clk {
			samsung,pin-drv = <0>;
		};

		sd3_cmd: sd3-cmd {
			samsung,pin-pud = <3>;
			samsung,pin-drv = <0>;
		};

		sd3_bus4: sd3-bus-width4 {
			samsung,pin-drv = <0>;
		};
	};

	gpio-keys {
		compatible = "gpio-keys";

		lid-switch {
			label = "Lid";
			gpios = <&gpx3 5 1>;
			linux,input-type = <5>; /* EV_SW */
			linux,code = <0>; /* SW_LID */
			debounce-interval = <1>;
			gpio-key,wakeup;
		};
	};

	i2c-arbitrator {
		compatible = "i2c-arb-gpio-challenge";
		#address-cells = <1>;
		#size-cells = <0>;

		i2c-parent = <&{/i2c@12CA0000}>;

		our-claim-gpio = <&gpf0 3 1>;
		their-claim-gpios = <&gpe0 4 1>;
		slew-delay-us = <10>;
		wait-retry-us = <3000>;
		wait-free-us = <50000>;

		/* Use ID 104 as a hint that we're on physical bus 4 */
		i2c_104: i2c@0 {
			reg = <0>;
			#address-cells = <1>;
			#size-cells = <0>;

			battery: sbs-battery@b {
				compatible = "sbs,sbs-battery";
				reg = <0xb>;
				sbs,poll-retry-count = <1>;
			};
		};
	};

	/*
	 * On Snow we've got SIP WiFi and so can keep drive strengths low to
	 * reduce EMI.
	 */
	dwmmc3@12230000 {
		slot@0 {
			pinctrl-names = "default";
			pinctrl-0 = <&sd3_clk &sd3_cmd &sd3_bus4>;
		};
	};

	usb@12110000 {
		samsung,vbus-gpio = <&gpx1 1 1 3 3>;
	};

	fixed-rate-clocks {
		xxti {
			compatible = "samsung,clock-xxti";
			clock-frequency = <24000000>;
		};
	};
};