u-boot/arch/x86/dts/edison.dts

// SPDX-License-Identifier: GPL-2.0+
/*
 * Copyright (c) 2017 Intel Corporation
 */

/dts-v1/;

#include <dt-bindings/gpio/x86-gpio.h>
#include <dt-bindings/interrupt-router/intel-irq.h>

/include/ "skeleton.dtsi"
/include/ "rtc.dtsi"
/include/ "tsc_timer.dtsi"

/ {
	model = "Intel Edison";
	compatible = "intel,edison";

	aliases {
		serial0 = &serial0;
	};

	chosen {
		stdout-path = &serial0;
	};

	cpus {
		#address-cells = <1>;
		#size-cells = <0>;

		cpu@0 {
			device_type = "cpu";
			compatible = "cpu-x86";
			reg = <0>;
			intel,apic-id = <0>;
		};

		cpu@1 {
			device_type = "cpu";
			compatible = "cpu-x86";
			reg = <1>;
			intel,apic-id = <2>;
		};
	};

	pci {
		compatible = "pci-x86";
		#address-cells = <3>;
		#size-cells = <2>;
		u-boot,dm-pre-reloc;
		ranges = <0x02000000 0x0 0x80000000 0x80000000 0 0x40000000
			  0x42000000 0x0 0xc0000000 0xc0000000 0 0x20000000
			  0x01000000 0x0 0x2000 0x2000 0 0xe000>;
	};

	serial0: serial@ff010180 {
		compatible = "intel,mid-uart";
		reg = <0xff010180 0x100>;
		reg-shift = <0>;
		clock-frequency = <29491200>;
		current-speed = <115200>;
	};

	emmc: mmc@ff3fc000 {
		compatible = "intel,sdhci-tangier";
		reg = <0xff3fc000 0x1000>;
	};

/*
 * FIXME: For now U-Boot DM model doesn't allow to power up this controller.
 * Enabling it will make U-Boot hang.
 *
	sdcard: mmc@ff3fa000 {
		compatible = "intel,sdhci-tangier";
		reg = <0xff3fa000 0x1000>;
	};
 */

	pmu: power@ff00b000 {
		compatible = "intel,pmu-mid";
		reg = <0xff00b000 0x1000>;
	};

	scu: ipc@ff009000 {
		compatible = "intel,scu-ipc";
		reg = <0xff009000 0x1000>;
	};

	reset {
		compatible = "intel,reset-tangier";
		u-boot,dm-pre-reloc;
	};

	pinctrl {
		compatible = "intel,pinctrl-tangier";
		reg = <0xff0c0000 0x8000>;

		/*
		 * Initial configuration came from the firmware.
		 * Which quite likely has been used in the phones, where I2C #8,
		 * that is not part of Atom peripheral, is in use.
		 * Thus we need to override the leftover.
		 */
		i2c6_scl@0 {
			pad-offset = <111>;
			mode-func = <1>;
			protected;
		};
		i2c6_sda@0 {
			pad-offset = <112>;
			mode-func = <1>;
			protected;
		};
	};
};