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

/dts-v1/;

#include <dt-bindings/gpio/x86-gpio.h>

/include/ "skeleton.dtsi"
/include/ "keyboard.dtsi"
/include/ "serial.dtsi"
/include/ "reset.dtsi"
/include/ "rtc.dtsi"
/include/ "tsc_timer.dtsi"

/ {
	model = "Google Link";
	compatible = "google,link", "intel,celeron-ivybridge";

	aliases {
		spi0 = &spi;
		usb0 = &usb_0;
		usb1 = &usb_1;
	};

	config {
	       silent_console = <0>;
	};

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

		cpu@0 {
			device_type = "cpu";
			compatible = "intel,core-gen3";
			reg = <0>;
			intel,apic-id = <0>;
		};

		cpu@1 {
			device_type = "cpu";
			compatible = "intel,core-gen3";
			reg = <1>;
			intel,apic-id = <1>;
		};

		cpu@2 {
			device_type = "cpu";
			compatible = "intel,core-gen3";
			reg = <2>;
			intel,apic-id = <2>;
		};

		cpu@3 {
			device_type = "cpu";
			compatible = "intel,core-gen3";
			reg = <3>;
			intel,apic-id = <3>;
		};

	};

	chosen {
		stdout-path = "/serial";
	};

	keyboard {
		intel,duplicate-por;
	};

	pch_pinctrl {
		compatible = "intel,x86-pinctrl";
		u-boot,dm-pre-reloc;
		reg = <0 0>;

		gpio_a0 {
			gpio-offset = <0 0>;
			mode-gpio;
			direction = <PIN_INPUT>;
		};

		gpio_a1 {
			gpio-offset = <0>;
			mode-gpio;
			direction = <PIN_OUTPUT>;
			output-value = <1>;
		};

		gpio_a3 {
			gpio-offset = <0 3>;
			mode-gpio;
			direction = <PIN_INPUT>;
		};

		gpio_a5 {
			gpio-offset = <0 5>;
			mode-gpio;
			direction = <PIN_INPUT>;
		};

		gpio_a6 {
			gpio-offset = <0 6>;
			mode-gpio;
			direction = <PIN_OUTPUT>;
			output-value = <1>;
		};

		gpio_a7 {
			gpio-offset = <0 7>;
			mode-gpio;
			direction = <PIN_INPUT>;
			invert;
		};

		gpio_a8 {
			gpio-offset = <0 8>;
			mode-gpio;
			direction = <PIN_INPUT>;
			invert;
		};

		gpio_a9 {
			gpio-offset = <0 9>;
			mode-gpio;
			direction = <PIN_INPUT>;
		};

		gpio_a10 {
			u-boot,dm-pre-reloc;
			gpio-offset = <0 10>;
			mode-gpio;
			direction = <PIN_INPUT>;
		};

		gpio_a11 {
			gpio-offset = <0 11>;
			mode-gpio;
			direction = <PIN_INPUT>;
		};

		gpio_a12 {
			gpio-offset = <0 12>;
			mode-gpio;
			direction = <PIN_INPUT>;
			invert;
		};

		gpio_a14 {
			gpio-offset = <0 14>;
			mode-gpio;
			direction = <PIN_INPUT>;
			invert;
		};

		gpio_a15 {
			gpio-offset = <0 15>;
			mode-gpio;
			direction = <PIN_INPUT>;
			invert;
		};

		gpio_a21 {
			gpio-offset = <0 21>;
			mode-gpio;
			direction = <PIN_INPUT>;
		};

		gpio_a24 {
			gpio-offset = <0 24>;
			mode-gpio;
			output-value = <0>;
			direction = <PIN_OUTPUT>;
		};

		gpio_a28 {
			gpio-offset = <0 28>;
			mode-gpio;
			direction = <PIN_INPUT>;
		};

		gpio_b4 {
			gpio-offset = <0x30 4>;
			mode-gpio;
			direction = <PIN_OUTPUT>;
			output-value = <1>;
		};

		gpio_b9 {
			u-boot,dm-pre-reloc;
			gpio-offset = <0x30 9>;
			mode-gpio;
			direction = <PIN_INPUT>;
		};

		gpio_b10 {
			u-boot,dm-pre-reloc;
			gpio-offset = <0x30 10>;
			mode-gpio;
			direction = <PIN_INPUT>;
		};

		gpio_b11 {
			u-boot,dm-pre-reloc;
			gpio-offset = <0x30 11>;
			mode-gpio;
			direction = <PIN_INPUT>;
		};

		gpio_b25 {
			gpio-offset = <0x30 25>;
			mode-gpio;
			direction = <PIN_INPUT>;
		};

		gpio_b28 {
			gpio-offset = <0x30 28>;
			mode-gpio;
			direction = <PIN_OUTPUT>;
			output-value = <1>;
		};

	};

	pci {
		compatible = "pci-x86";
		#address-cells = <3>;
		#size-cells = <2>;
		u-boot,dm-pre-reloc;
		ranges = <0x02000000 0x0 0xe0000000 0xe0000000 0 0x10000000
			0x42000000 0x0 0xd0000000 0xd0000000 0 0x10000000
			0x01000000 0x0 0x1000 0x1000 0 0xefff>;

		northbridge@0,0 {
			reg = <0x00000000 0 0 0 0>;
			u-boot,dm-pre-reloc;
			compatible = "intel,bd82x6x-northbridge";
			board-id-gpios = <&gpio_b 9 0>, <&gpio_b 10 0>,
					<&gpio_b 11 0>, <&gpio_a 10 0>;
			spd {
				u-boot,dm-pre-reloc;
				#address-cells = <1>;
				#size-cells = <0>;
				elpida_4Gb_1600_x16 {
					u-boot,dm-pre-reloc;
					reg = <0>;
					data = [92 10 0b 03 04 19 02 02
						03 52 01 08 0a 00 fe 00
						69 78 69 3c 69 11 18 81
						20 08 3c 3c 01 40 83 81
						00 00 00 00 00 00 00 00
						00 00 00 00 00 00 00 00
						00 00 00 00 00 00 00 00
						00 00 00 00 0f 11 42 00
						00 00 00 00 00 00 00 00
						00 00 00 00 00 00 00 00
						00 00 00 00 00 00 00 00
						00 00 00 00 00 00 00 00
						00 00 00 00 00 00 00 00
						00 00 00 00 00 00 00 00
						00 00 00 00 00 02 fe 00
						11 52 00 00 00 07 7f 37
						45 42 4a 32 30 55 47 36
						45 42 55 30 2d 47 4e 2d
						46 20 30 20 02 fe 00 00
						00 00 00 00 00 00 00 00
						00 00 00 00 00 00 00 00
						00 00 00 00 00 00 00 00
						00 00 00 00 00 00 00 00
						00 00 00 00 00 00 00 00
						00 00 00 00 00 00 00 00
						00 00 00 00 00 00 00 00
						00 00 00 00 00 00 00 00
						00 00 00 00 00 00 00 00
						00 00 00 00 00 00 00 00
						00 00 00 00 00 00 00 00
						00 00 00 00 00 00 00 00
						00 00 00 00 00 00 00 00];
				};
				samsung_4Gb_1600_1.35v_x16 {
					u-boot,dm-pre-reloc;
					reg = <1>;
					data = [92 11 0b 03 04 19 02 02
						03 11 01 08 0a 00 fe 00
						69 78 69 3c 69 11 18 81
						f0 0a 3c 3c 01 40 83 01
						00 80 00 00 00 00 00 00
						00 00 00 00 00 00 00 00
						00 00 00 00 00 00 00 00
						00 00 00 00 0f 11 02 00
						00 00 00 00 00 00 00 00
						00 00 00 00 00 00 00 00
						00 00 00 00 00 00 00 00
						00 00 00 00 00 00 00 00
						00 00 00 00 00 00 00 00
						00 00 00 00 00 00 00 00
						00 00 00 00 00 80 ce 01
						00 00 00 00 00 00 6a 04
						4d 34 37 31 42 35 36 37
						34 42 48 30 2d 59 4b 30
						20 20 00 00 80 ce 00 00
						00 00 00 00 00 00 00 00
						00 00 00 00 00 00 00 00
						00 00 00 00 00 00 00 00
						00 00 00 00 00 00 00 00
						00 00 00 00 00 00 00 00
						00 00 00 00 00 00 00 00
						00 00 00 00 00 00 00 00
						00 00 00 00 00 00 00 00
						00 00 00 00 00 00 00 00
						00 00 00 00 00 00 00 00
						00 00 00 00 00 00 00 00
						00 00 00 00 00 00 00 00
						00 00 00 00 00 00 00 00];
					};
				micron_4Gb_1600_1.35v_x16 {
					reg = <2>;
					data = [92 11 0b 03 04 19 02 02
						03 11 01 08 0a 00 fe 00
						69 78 69 3c 69 11 18 81
						20 08 3c 3c 01 40 83 05
						00 00 00 00 00 00 00 00
						00 00 00 00 00 00 00 00
						00 00 00 00 00 00 00 00
						00 00 00 00 0f 01 02 00
						00 00 00 00 00 00 00 00
						00 00 00 00 00 00 00 00
						00 00 00 00 00 00 00 00
						00 00 00 00 00 00 00 00
						00 00 00 00 00 00 00 00
						00 00 00 00 00 00 00 00
						00 00 00 00 00 80 2c 00
						00 00 00 00 00 00 ad 75
						34 4b 54 46 32 35 36 36
						34 48 5a 2d 31 47 36 45
						31 20 45 31 80 2c 00 00
						00 00 00 00 00 00 00 00
						00 00 00 00 00 00 00 00
						00 00 00 00 00 00 00 00
						ff ff ff ff ff ff ff ff
						ff ff ff ff ff ff ff ff
						ff ff ff ff ff ff ff ff
						ff ff ff ff ff ff ff ff
						ff ff ff ff ff ff ff ff
						ff ff ff ff ff ff ff ff
						ff ff ff ff ff ff ff ff
						ff ff ff ff ff ff ff ff
						ff ff ff ff ff ff ff ff
						ff ff ff ff ff ff ff ff];
				};
			};
		};

		gma@2,0 {
			reg = <0x00001000 0 0 0 0>;
			compatible = "intel,gma";
			intel,dp_hotplug = <0 0 0x06>;
			intel,panel-port-select = <1>;
			intel,panel-power-cycle-delay = <6>;
			intel,panel-power-up-delay = <2000>;
			intel,panel-power-down-delay = <500>;
			intel,panel-power-backlight-on-delay = <2000>;
			intel,panel-power-backlight-off-delay = <2000>;
			intel,cpu-backlight = <0x00000200>;
			intel,pch-backlight = <0x04000000>;
		};

		me@16,0 {
			reg = <0x0000b000 0 0 0 0>;
			compatible = "intel,me";
			u-boot,dm-pre-reloc;
		};

		usb_1: usb@1a,0 {
			reg = <0x0000d000 0 0 0 0>;
			compatible = "ehci-pci";
		};

		usb_0: usb@1d,0 {
			reg = <0x0000e800 0 0 0 0>;
			compatible = "ehci-pci";
		};

		pch@1f,0 {
			reg = <0x0000f800 0 0 0 0>;
			compatible = "intel,bd82x6x", "intel,pch9";
			u-boot,dm-pre-reloc;
			#address-cells = <1>;
			#size-cells = <1>;
			intel,pirq-routing = <0x8b 0x8a 0x8b 0x8b
						0x80 0x80 0x80 0x80>;
			intel,gpi-routing = <0 0 0 0 0 0 0 2
						1 0 0 0 0 0 0 0>;
			/* Enable EC SMI source */
			intel,alt-gp-smi-enable = <0x0100>;

			spi: spi {
				#address-cells = <1>;
				#size-cells = <0>;
				compatible = "intel,ich9-spi";
				u-boot,dm-pre-reloc;
				spi-flash@0 {
					#size-cells = <1>;
					#address-cells = <1>;
					u-boot,dm-pre-reloc;
					reg = <0>;
					compatible = "winbond,w25q64",
							"spi-flash";
					memory-map = <0xff800000 0x00800000>;
					rw-mrc-cache {
						label = "rw-mrc-cache";
						reg = <0x003e0000 0x00010000>;
						u-boot,dm-pre-reloc;
					};
				};
			};

			gpio_a: gpioa {
				compatible = "intel,ich6-gpio";
				u-boot,dm-pre-reloc;
				#gpio-cells = <2>;
				gpio-controller;
				reg = <0 0x10>;
				bank-name = "A";
			};

			gpio_b: gpiob {
				compatible = "intel,ich6-gpio";
				u-boot,dm-pre-reloc;
				#gpio-cells = <2>;
				gpio-controller;
				reg = <0x30 0x10>;
				bank-name = "B";
			};

			gpio_c: gpioc {
				compatible = "intel,ich6-gpio";
				u-boot,dm-pre-reloc;
				#gpio-cells = <2>;
				gpio-controller;
				reg = <0x40 0x10>;
				bank-name = "C";
			};

			lpc {
				compatible = "intel,bd82x6x-lpc";
				#address-cells = <1>;
				#size-cells = <0>;
				u-boot,dm-pre-reloc;
				intel,gen-dec = <0x800 0xfc 0x900 0xfc>;
				cros-ec@200 {
					compatible = "google,cros-ec";
					reg = <0x204 1 0x200 1 0x880 0x80>;

					/*
					 * Describes the flash memory within
					 * the EC
					 */
					#address-cells = <1>;
					#size-cells = <1>;
					flash@8000000 {
						reg = <0x08000000 0x20000>;
						erase-value = <0xff>;
					};
				};
			};
		};

		sata@1f,2 {
			compatible = "intel,pantherpoint-ahci";
			reg = <0x0000fa00 0 0 0 0>;
			u-boot,dm-pre-reloc;
			intel,sata-mode = "ahci";
			intel,sata-port-map = <1>;
			intel,sata-port0-gen3-tx = <0x00880a7f>;
		};

		smbus: smbus@1f,3 {
			compatible = "intel,ich-i2c";
			reg = <0x0000fb00 0 0 0 0>;
			u-boot,dm-pre-reloc;
		};
	};

	tpm {
		reg = <0xfed40000 0x5000>;
		compatible = "infineon,slb9635lpc";
	};

	microcode {
		u-boot,dm-pre-reloc;
		update@0 {
			u-boot,dm-pre-reloc;
#include "microcode/m12306a9_0000001b.dtsi"
		};
	};

};