linux-arkmicro/u-boot/arch/x86/dts/galileo.dts

// SPDX-License-Identifier: GPL-2.0+
/*
 * Copyright (C) 2015, Bin Meng <bmeng.cn@gmail.com>
 */

/dts-v1/;

#include <dt-bindings/mrc/quark.h>
#include <dt-bindings/interrupt-router/intel-irq.h>

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

/ {
	model = "Intel Galileo";
	compatible = "intel,galileo", "intel,quark";

	aliases {
		spi0 = &spi;
	};

	config {
		silent_console = <0>;
	};

	chosen {
		stdout-path = &pciuart0;
	};

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

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

	tsc-timer {
		clock-frequency = <400000000>;
	};

	mrc {
		compatible = "intel,quark-mrc";
		flags = <MRC_FLAG_SCRAMBLE_EN>;
		dram-width = <DRAM_WIDTH_X8>;
		dram-speed = <DRAM_FREQ_800>;
		dram-type = <DRAM_TYPE_DDR3>;
		rank-mask = <DRAM_RANK(0)>;
		chan-mask = <DRAM_CHANNEL(0)>;
		chan-width = <DRAM_CHANNEL_WIDTH_X16>;
		addr-mode = <DRAM_ADDR_MODE0>;
		refresh-rate = <DRAM_REFRESH_RATE_785US>;
		sr-temp-range = <DRAM_SRT_RANGE_NORMAL>;
		ron-value = <DRAM_RON_34OHM>;
		rtt-nom-value = <DRAM_RTT_NOM_120OHM>;
		rd-odt-value = <DRAM_RD_ODT_OFF>;
		dram-density = <DRAM_DENSITY_1G>;
		dram-cl = <6>;
		dram-ras = <0x0000927c>;
		dram-wtr = <0x00002710>;
		dram-rrd = <0x00002710>;
		dram-faw = <0x00009c40>;
	};

	pci {
		#address-cells = <3>;
		#size-cells = <2>;
		compatible = "pci-x86";
		u-boot,dm-pre-reloc;
		ranges = <0x02000000 0x0 0x90000000 0x90000000 0 0x20000000
			  0x42000000 0x0 0xb0000000 0xb0000000 0 0x20000000
			  0x01000000 0x0 0x2000 0x2000 0 0xe000>;

		pciuart0: uart@14,5 {
			compatible = "pci8086,0936.00",
					"pci8086,0936",
					"pciclass,070002",
					"pciclass,0700",
					"ns16550";
			u-boot,dm-pre-reloc;
			reg = <0x0000a500 0x0 0x0 0x0 0x0
			       0x0200a510 0x0 0x0 0x0 0x0>;
			reg-shift = <2>;
			clock-frequency = <44236800>;
			current-speed = <115200>;
		};

		pch@1f,0 {
			reg = <0x0000f800 0 0 0 0>;
			compatible = "intel,pch7";
			#address-cells = <1>;
			#size-cells = <1>;

			irq-router {
				compatible = "intel,irq-router";
				intel,pirq-config = "pci";
				intel,actl-addr = <0x58>;
				intel,pirq-link = <0x60 8>;
				intel,pirq-mask = <0xdef8>;
				intel,pirq-routing = <
					PCI_BDF(0, 20, 0) INTA PIRQE
					PCI_BDF(0, 20, 1) INTB PIRQF
					PCI_BDF(0, 20, 2) INTC PIRQG
					PCI_BDF(0, 20, 3) INTD PIRQH
					PCI_BDF(0, 20, 4) INTA PIRQE
					PCI_BDF(0, 20, 5) INTB PIRQF
					PCI_BDF(0, 20, 6) INTC PIRQG
					PCI_BDF(0, 20, 7) INTD PIRQH
					PCI_BDF(0, 21, 0) INTA PIRQE
					PCI_BDF(0, 21, 1) INTB PIRQF
					PCI_BDF(0, 21, 2) INTC PIRQG
					PCI_BDF(0, 23, 0) INTA PIRQA
					PCI_BDF(0, 23, 1) INTB PIRQB

					/* PCIe root ports downstream interrupts */
					PCI_BDF(1, 0, 0) INTA PIRQA
					PCI_BDF(1, 0, 0) INTB PIRQB
					PCI_BDF(1, 0, 0) INTC PIRQC
					PCI_BDF(1, 0, 0) INTD PIRQD
					PCI_BDF(2, 0, 0) INTA PIRQB
					PCI_BDF(2, 0, 0) INTB PIRQC
					PCI_BDF(2, 0, 0) INTC PIRQD
					PCI_BDF(2, 0, 0) INTD PIRQA
				>;
			};

			spi: spi {
				#address-cells = <1>;
				#size-cells = <0>;
				compatible = "intel,ich7-spi";
				spi-flash@0 {
					#size-cells = <1>;
					#address-cells = <1>;
					reg = <0>;
					compatible = "winbond,w25q64",
						"spi-flash";
					memory-map = <0xff800000 0x00800000>;
					rw-mrc-cache {
						label = "rw-mrc-cache";
						reg = <0x00010000 0x00010000>;
					};
				};
			};

			gpioa {
				compatible = "intel,ich6-gpio";
				u-boot,dm-pre-reloc;
				reg = <0 0x20>;
				bank-name = "A";
			};

			gpiob {
				compatible = "intel,ich6-gpio";
				u-boot,dm-pre-reloc;
				reg = <0x20 0x20>;
				bank-name = "B";
			};
		};
	};

};