src/arm64/amd/elba.dtsi

// SPDX-License-Identifier: (GPL-2.0-only or BSD-2-Clause)
/*
 * Copyright 2020-2022 Advanced Micro Devices, Inc.
 */

#include <dt-bindings/gpio/gpio.h>
#include "dt-bindings/interrupt-controller/arm-gic.h"

/ {
	model = "Elba ASIC Board";
	compatible = "amd,pensando-elba";
	interrupt-parent = <&gic>;
	#address-cells = <2>;
	#size-cells = <2>;

	dma-coherent;

	ahb_clk: oscillator0 {
		compatible = "fixed-clock";
		#clock-cells = <0>;
	};

	emmc_clk: oscillator2 {
		compatible = "fixed-clock";
		#clock-cells = <0>;
	};

	flash_clk: oscillator3 {
		compatible = "fixed-clock";
		#clock-cells = <0>;
	};

	ref_clk: oscillator4 {
		compatible = "fixed-clock";
		#clock-cells = <0>;
	};

	psci {
		compatible = "arm,psci-0.2";
		method = "smc";
	};

	timer {
		compatible = "arm,armv8-timer";
		interrupts = <GIC_PPI 13 IRQ_TYPE_LEVEL_LOW>,
			     <GIC_PPI 14 IRQ_TYPE_LEVEL_LOW>,
			     <GIC_PPI 11 IRQ_TYPE_LEVEL_LOW>,
			     <GIC_PPI 10 IRQ_TYPE_LEVEL_LOW>;
	};

	pmu {
		compatible = "arm,cortex-a72-pmu";
		interrupts = <GIC_PPI 7 IRQ_TYPE_LEVEL_LOW>;
	};

	soc: soc {
		compatible = "simple-bus";
		#address-cells = <2>;
		#size-cells = <2>;
		ranges;

		i2c0: i2c@400 {
			compatible = "snps,designware-i2c";
			reg = <0x0 0x400 0x0 0x100>;
			clocks = <&ahb_clk>;
			#address-cells = <1>;
			#size-cells = <0>;
			i2c-sda-hold-time-ns = <480>;
			interrupts = <GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>;
			status = "disabled";
		};

		wdt0: watchdog@1400 {
			compatible = "snps,dw-wdt";
			reg = <0x0 0x1400 0x0 0x100>;
			clocks = <&ahb_clk>;
			interrupts = <GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH>;
			status = "disabled";
		};

		qspi: spi@2400 {
			compatible = "amd,pensando-elba-qspi", "cdns,qspi-nor";
			reg = <0x0 0x2400 0x0 0x400>,
			      <0x0 0x7fff0000 0x0 0x1000>;
			#address-cells = <1>;
			#size-cells = <0>;
			interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>;
			clocks = <&flash_clk>;
			cdns,fifo-depth = <1024>;
			cdns,fifo-width = <4>;
			cdns,trigger-address = <0x7fff0000>;
			status = "disabled";
		};

		spi0: spi@2800 {
			compatible = "amd,pensando-elba-spi";
			reg = <0x0 0x2800 0x0 0x100>;
			#address-cells = <1>;
			#size-cells = <0>;
			amd,pensando-elba-syscon = <&syscon>;
			clocks = <&ahb_clk>;
			interrupts = <GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH>;
			num-cs = <2>;
			status = "disabled";
		};

		gpio0: gpio@4000 {
			compatible = "snps,dw-apb-gpio";
			reg = <0x0 0x4000 0x0 0x78>;
			#address-cells = <1>;
			#size-cells = <0>;
			status = "disabled";

			porta: gpio-port@0 {
				compatible = "snps,dw-apb-gpio-port";
				reg = <0>;
				gpio-controller;
				#gpio-cells = <2>;
				ngpios = <8>;
				interrupts = <GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>;
				interrupt-controller;
				interrupt-parent = <&gic>;
				#interrupt-cells = <2>;
			};

			portb: gpio-port@1 {
				compatible = "snps,dw-apb-gpio-port";
				reg = <1>;
				gpio-controller;
				#gpio-cells = <2>;
				ngpios = <8>;
			};
		};

		uart0: serial@4800 {
			compatible = "ns16550a";
			reg = <0x0 0x4800 0x0 0x100>;
			clocks = <&ref_clk>;
			interrupts = <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>;
			reg-shift = <2>;
			reg-io-width = <4>;
		};

		gic: interrupt-controller@800000 {
			compatible = "arm,gic-v3";
			reg = <0x0 0x800000 0x0 0x200000>,	/* GICD */
			      <0x0 0xa00000 0x0 0x200000>,	/* GICR */
			      <0x0 0x60000000 0x0 0x2000>,	/* GICC */
			      <0x0 0x60010000 0x0 0x1000>,	/* GICH */
			      <0x0 0x60020000 0x0 0x2000>;	/* GICV */
			#address-cells = <2>;
			#size-cells = <2>;
			#interrupt-cells = <3>;
			ranges;
			interrupt-controller;
			interrupts = <GIC_PPI 9 IRQ_TYPE_LEVEL_HIGH>;

			/*
			 * Elba specific pre-ITS is enabled using the
			 * existing property socionext,synquacer-pre-its
			 */
			gic_its: msi-controller@820000 {
				compatible = "arm,gic-v3-its";
				reg = <0x0 0x820000 0x0 0x10000>;
				msi-controller;
				#msi-cells = <1>;
				socionext,synquacer-pre-its =
							<0xc00000 0x1000000>;
			};
		};

		emmc: mmc@30440000 {
			compatible = "amd,pensando-elba-sd4hc", "cdns,sd4hc";
			reg = <0x0 0x30440000 0x0 0x10000>,
			      <0x0 0x30480044 0x0 0x4>;	/* byte-lane ctrl */
			clocks = <&emmc_clk>;
			interrupts = <GIC_SPI 26 IRQ_TYPE_LEVEL_HIGH>;
			cdns,phy-input-delay-sd-highspeed = <0x4>;
			cdns,phy-input-delay-legacy = <0x4>;
			cdns,phy-input-delay-sd-uhs-sdr50 = <0x6>;
			cdns,phy-input-delay-sd-uhs-ddr50 = <0x16>;
			mmc-ddr-1_8v;
			status = "disabled";
		};

		syscon: syscon@307c0000 {
			compatible = "amd,pensando-elba-syscon", "syscon";
			reg = <0x0 0x307c0000 0x0 0x3000>;
		};
	};
};