linux_dsm_epyc7002/arch/arm/boot/dts/bcm283x.dtsi

#include <dt-bindings/pinctrl/bcm2835.h>
#include <dt-bindings/clock/bcm2835.h>
#include "skeleton.dtsi"

/* This include file covers the common peripherals and configuration between
 * bcm2835 and bcm2836 implementations, leaving the CPU configuration to
 * bcm2835.dtsi and bcm2836.dtsi.
 */

/ {
	compatible = "brcm,bcm2835";
	model = "BCM2835";
	interrupt-parent = <&intc>;

	chosen {
		bootargs = "earlyprintk console=ttyAMA0";
	};

	soc {
		compatible = "simple-bus";
		#address-cells = <1>;
		#size-cells = <1>;

		timer@7e003000 {
			compatible = "brcm,bcm2835-system-timer";
			reg = <0x7e003000 0x1000>;
			interrupts = <1 0>, <1 1>, <1 2>, <1 3>;
			/* This could be a reference to BCM2835_CLOCK_TIMER,
			 * but we don't have the driver using the common clock
			 * support yet.
			 */
			clock-frequency = <1000000>;
		};

		dma: dma@7e007000 {
			compatible = "brcm,bcm2835-dma";
			reg = <0x7e007000 0xf00>;
			interrupts = <1 16>,
				     <1 17>,
				     <1 18>,
				     <1 19>,
				     <1 20>,
				     <1 21>,
				     <1 22>,
				     <1 23>,
				     <1 24>,
				     <1 25>,
				     <1 26>,
				     <1 27>,
				     <1 28>;

			#dma-cells = <1>;
			brcm,dma-channel-mask = <0x7f35>;
		};

		intc: interrupt-controller@7e00b200 {
			compatible = "brcm,bcm2835-armctrl-ic";
			reg = <0x7e00b200 0x200>;
			interrupt-controller;
			#interrupt-cells = <2>;
		};

		watchdog@7e100000 {
			compatible = "brcm,bcm2835-pm-wdt";
			reg = <0x7e100000 0x28>;
		};

		clocks: cprman@7e101000 {
			compatible = "brcm,bcm2835-cprman";
			#clock-cells = <1>;
			reg = <0x7e101000 0x2000>;

			/* CPRMAN derives everything from the platform's
			 * oscillator.
			 */
			clocks = <&clk_osc>;
		};

		rng@7e104000 {
			compatible = "brcm,bcm2835-rng";
			reg = <0x7e104000 0x10>;
		};

		mailbox: mailbox@7e00b800 {
			compatible = "brcm,bcm2835-mbox";
			reg = <0x7e00b880 0x40>;
			interrupts = <0 1>;
			#mbox-cells = <0>;
		};

		gpio: gpio@7e200000 {
			compatible = "brcm,bcm2835-gpio";
			reg = <0x7e200000 0xb4>;
			/*
			 * The GPIO IP block is designed for 3 banks of GPIOs.
			 * Each bank has a GPIO interrupt for itself.
			 * There is an overall "any bank" interrupt.
			 * In order, these are GIC interrupts 17, 18, 19, 20.
			 * Since the BCM2835 only has 2 banks, the 2nd bank
			 * interrupt output appears to be mirrored onto the
			 * 3rd bank's interrupt signal.
			 * So, a bank0 interrupt shows up on 17, 20, and
			 * a bank1 interrupt shows up on 18, 19, 20!
			 */
			interrupts = <2 17>, <2 18>, <2 19>, <2 20>;

			gpio-controller;
			#gpio-cells = <2>;

			interrupt-controller;
			#interrupt-cells = <2>;
		};

		uart0: uart@7e201000 {
			compatible = "brcm,bcm2835-pl011", "arm,pl011", "arm,primecell";
			reg = <0x7e201000 0x1000>;
			interrupts = <2 25>;
			clocks = <&clocks BCM2835_CLOCK_UART>,
				 <&clocks BCM2835_CLOCK_VPU>;
			clock-names = "uartclk", "apb_pclk";
			arm,primecell-periphid = <0x00241011>;
		};

		i2s: i2s@7e203000 {
			compatible = "brcm,bcm2835-i2s";
			reg = <0x7e203000 0x20>,
			      <0x7e101098 0x02>;

			dmas = <&dma 2>,
			       <&dma 3>;
			dma-names = "tx", "rx";
			status = "disabled";
		};

		spi: spi@7e204000 {
			compatible = "brcm,bcm2835-spi";
			reg = <0x7e204000 0x1000>;
			interrupts = <2 22>;
			clocks = <&clocks BCM2835_CLOCK_VPU>;
			#address-cells = <1>;
			#size-cells = <0>;
			status = "disabled";
		};

		i2c0: i2c@7e205000 {
			compatible = "brcm,bcm2835-i2c";
			reg = <0x7e205000 0x1000>;
			interrupts = <2 21>;
			clocks = <&clocks BCM2835_CLOCK_VPU>;
			#address-cells = <1>;
			#size-cells = <0>;
			status = "disabled";
		};

		aux: aux@0x7e215000 {
			compatible = "brcm,bcm2835-aux";
			#clock-cells = <1>;
			reg = <0x7e215000 0x8>;
			clocks = <&clocks BCM2835_CLOCK_VPU>;
		};

		sdhci: sdhci@7e300000 {
			compatible = "brcm,bcm2835-sdhci";
			reg = <0x7e300000 0x100>;
			interrupts = <2 30>;
			clocks = <&clocks BCM2835_CLOCK_EMMC>;
			status = "disabled";
		};

		i2c1: i2c@7e804000 {
			compatible = "brcm,bcm2835-i2c";
			reg = <0x7e804000 0x1000>;
			interrupts = <2 21>;
			clocks = <&clocks BCM2835_CLOCK_VPU>;
			#address-cells = <1>;
			#size-cells = <0>;
			status = "disabled";
		};

		i2c2: i2c@7e805000 {
			compatible = "brcm,bcm2835-i2c";
			reg = <0x7e805000 0x1000>;
			interrupts = <2 21>;
			clocks = <&clocks BCM2835_CLOCK_VPU>;
			#address-cells = <1>;
			#size-cells = <0>;
			status = "disabled";
		};

		usb@7e980000 {
			compatible = "brcm,bcm2835-usb";
			reg = <0x7e980000 0x10000>;
			interrupts = <1 9>;
		};
	};

	clocks {
		compatible = "simple-bus";
		#address-cells = <1>;
		#size-cells = <0>;

		/* The oscillator is the root of the clock tree. */
		clk_osc: clock@3 {
			compatible = "fixed-clock";
			reg = <3>;
			#clock-cells = <0>;
			clock-output-names = "osc";
			clock-frequency = <19200000>;
		};

	};
};