linux_dsm_epyc7002/arch/powerpc/boot/dts/mpc5121ads.dts

/*
 * MPC5121E MDS Device Tree Source
 *
 * Copyright 2007 Freescale Semiconductor Inc.
 *
 * This program is free software; you can redistribute  it and/or modify it
 * under  the terms of  the GNU General  Public License as published by the
 * Free Software Foundation;  either version 2 of the  License, or (at your
 * option) any later version.
 */

/dts-v1/;

/ {
	model = "mpc5121ads";
	compatible = "fsl,mpc5121ads";
	#address-cells = <1>;
	#size-cells = <1>;

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

		PowerPC,5121@0 {
			device_type = "cpu";
			reg = <0>;
			d-cache-line-size = <0x20>;	// 32 bytes
			i-cache-line-size = <0x20>;	// 32 bytes
			d-cache-size = <0x8000>;	// L1, 32K
			i-cache-size = <0x8000>;	// L1, 32K
			timebase-frequency = <49500000>;// 49.5 MHz (csb/4)
			bus-frequency = <198000000>;	// 198 MHz csb bus
			clock-frequency = <396000000>;	// 396 MHz ppc core
		};
	};

	memory {
		device_type = "memory";
		reg = <0x00000000 0x10000000>;	// 256MB at 0
	};

	localbus@80000020 {
		compatible = "fsl,mpc5121ads-localbus";
		#address-cells = <2>;
		#size-cells = <1>;
		reg = <0x80000020 0x40>;

		ranges = <0x0 0x0 0xfc000000 0x04000000
			  0x2 0x0 0x82000000 0x00008000>;

		flash@0,0 {
			compatible = "cfi-flash";
			reg = <0 0x0 0x4000000>;
			bank-width = <4>;
			device-width = <1>;
		};

		board-control@2,0 {
			compatible = "fsl,mpc5121ads-cpld";
			reg = <0x2 0x0 0x8000>;
		};
	};

	soc@80000000 {
		compatible = "fsl,mpc5121-immr";
		#address-cells = <1>;
		#size-cells = <1>;
		#interrupt-cells = <2>;
		ranges = <0x0 0x80000000 0x400000>;
		reg = <0x80000000 0x400000>;
		bus-frequency = <66000000>;	// 66 MHz ips bus


		// IPIC
		// interrupts cell = <intr #, sense>
		// sense values match linux IORESOURCE_IRQ_* defines:
		// sense == 8: Level, low assertion
		// sense == 2: Edge, high-to-low change
		//
		ipic: interrupt-controller@c00 {
			compatible = "fsl,mpc5121-ipic", "fsl,ipic";
			interrupt-controller;
			#address-cells = <0>;
			#interrupt-cells = <2>;
			reg = <0xc00 0x100>;
		};

		// 512x PSCs are not 52xx PSCs compatible
		// PSC3 serial port A aka ttyPSC0
		serial@11300 {
			device_type = "serial";
			compatible = "fsl,mpc5121-psc-uart";
			// Logical port assignment needed until driver
			// learns to use aliases
			port-number = <0>;
			cell-index = <3>;
			reg = <0x11300 0x100>;
			interrupts = <0x28 0x8>; // actually the fifo irq
			interrupt-parent = < &ipic >;
		};

		// PSC4 serial port B aka ttyPSC1
		serial@11400 {
			device_type = "serial";
			compatible = "fsl,mpc5121-psc-uart";
			// Logical port assignment needed until driver
			// learns to use aliases
			port-number = <1>;
			cell-index = <4>;
			reg = <0x11400 0x100>;
			interrupts = <0x28 0x8>; // actually the fifo irq
			interrupt-parent = < &ipic >;
		};

		pscsfifo@11f00 {
			compatible = "fsl,mpc5121-psc-fifo";
			reg = <0x11f00 0x100>;
			interrupts = <0x28 0x8>;
			interrupt-parent = < &ipic >;
		};
	};
};