xref: /kernel/linux/linux-6.6/arch/powerpc/boot/dts/ebony.dts

/*
 * Device Tree Source for IBM Ebony
 *
 * Copyright (c) 2006, 2007 IBM Corp.
 * Josh Boyer <jwboyer@linux.vnet.ibm.com>, David Gibson <dwg@au1.ibm.com>
 *
 * FIXME: Draft only!
 *
 * This file is licensed under the terms of the GNU General Public
 * License version 2.  This program is licensed "as is" without
 * any warranty of any kind, whether express or implied.
 */

/dts-v1/;

/ {
	#address-cells = <2>;
	#size-cells = <1>;
	model = "ibm,ebony";
	compatible = "ibm,ebony";
	dcr-parent = <&{/cpus/cpu@0}>;

	aliases {
		ethernet0 = &EMAC0;
		ethernet1 = &EMAC1;
		serial0 = &UART0;
		serial1 = &UART1;
	};

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

		cpu@0 {
			device_type = "cpu";
			model = "PowerPC,440GP";
			reg = <0x00000000>;
			clock-frequency = <0>; // Filled in by zImage
			timebase-frequency = <0>; // Filled in by zImage
			i-cache-line-size = <32>;
			d-cache-line-size = <32>;
			i-cache-size = <32768>; /* 32 kB */
			d-cache-size = <32768>; /* 32 kB */
			dcr-controller;
			dcr-access-method = "native";
		};
	};

	memory {
		device_type = "memory";
		reg = <0x00000000 0x00000000 0x00000000>; // Filled in by zImage
	};

	UIC0: interrupt-controller0 {
		compatible = "ibm,uic-440gp", "ibm,uic";
		interrupt-controller;
		cell-index = <0>;
		dcr-reg = <0x0c0 0x009>;
		#address-cells = <0>;
		#size-cells = <0>;
		#interrupt-cells = <2>;

	};

	UIC1: interrupt-controller1 {
		compatible = "ibm,uic-440gp", "ibm,uic";
		interrupt-controller;
		cell-index = <1>;
		dcr-reg = <0x0d0 0x009>;
		#address-cells = <0>;
		#size-cells = <0>;
		#interrupt-cells = <2>;
		interrupts = <0x1e 0x4 0x1f 0x4>; /* cascade */
		interrupt-parent = <&UIC0>;
	};

	CPC0: cpc {
		compatible = "ibm,cpc-440gp";
		dcr-reg = <0x0b0 0x003 0x0e0 0x010>;
		// FIXME: anything else?
	};

	plb {
		compatible = "ibm,plb-440gp", "ibm,plb4";
		#address-cells = <2>;
		#size-cells = <1>;
		ranges;
		clock-frequency = <0>; // Filled in by zImage

		SDRAM0: memory-controller {
			compatible = "ibm,sdram-440gp";
			dcr-reg = <0x010 0x002>;
			// FIXME: anything else?
		};

		SRAM0: sram {
			compatible = "ibm,sram-440gp";
			dcr-reg = <0x020 0x008 0x00a 0x001>;
		};

		DMA0: dma {
			// FIXME: ???
			compatible = "ibm,dma-440gp";
			dcr-reg = <0x100 0x027>;
		};

		MAL0: mcmal {
			compatible = "ibm,mcmal-440gp", "ibm,mcmal";
			dcr-reg = <0x180 0x062>;
			num-tx-chans = <4>;
			num-rx-chans = <4>;
			interrupt-parent = <&MAL0>;
			interrupts = <0x0 0x1 0x2 0x3 0x4>;
			#interrupt-cells = <1>;
			#address-cells = <0>;
			#size-cells = <0>;
			interrupt-map = </*TXEOB*/ 0x0 &UIC0 0xa 0x4
					 /*RXEOB*/ 0x1 &UIC0 0xb 0x4
					 /*SERR*/  0x2 &UIC1 0x0 0x4
					 /*TXDE*/  0x3 &UIC1 0x1 0x4
					 /*RXDE*/  0x4 &UIC1 0x2 0x4>;
			interrupt-map-mask = <0xffffffff>;
		};

		POB0: opb {
			compatible = "ibm,opb-440gp", "ibm,opb";
			#address-cells = <1>;
			#size-cells = <1>;
			/* Wish there was a nicer way of specifying a full 32-bit
			   range */
			ranges = <0x00000000 0x00000001 0x00000000 0x80000000
				  0x80000000 0x00000001 0x80000000 0x80000000>;
			dcr-reg = <0x090 0x00b>;
			interrupt-parent = <&UIC1>;
			interrupts = <0x7 0x4>;
			clock-frequency = <0>; // Filled in by zImage

			EBC0: ebc {
				compatible = "ibm,ebc-440gp", "ibm,ebc";
				dcr-reg = <0x012 0x002>;
				#address-cells = <2>;
				#size-cells = <1>;
				clock-frequency = <0>; // Filled in by zImage
				// ranges property is supplied by zImage
				// based on firmware's configuration of the
				// EBC bridge
				interrupts = <0x5 0x4>;
				interrupt-parent = <&UIC1>;

				small-flash@0,80000 {
					compatible = "jedec-flash";
					bank-width = <1>;
					reg = <0x00000000 0x00080000 0x00080000>;
					#address-cells = <1>;
					#size-cells = <1>;
					partition@0 {
						label = "OpenBIOS";
						reg = <0x00000000 0x00080000>;
						read-only;
					};
				};

				nvram@1,0 {
					/* NVRAM & RTC */
					compatible = "ds1743-nvram";
					#bytes = <0x2000>;
					reg = <0x00000001 0x00000000 0x00002000>;
				};

				large-flash@2,0 {
					compatible = "jedec-flash";
					bank-width = <1>;
					reg = <0x00000002 0x00000000 0x00400000>;
					#address-cells = <1>;
					#size-cells = <1>;
					partition@0 {
						label = "fs";
						reg = <0x00000000 0x00380000>;
					};
					partition@380000 {
						label = "firmware";
						reg = <0x00380000 0x00080000>;
					};
				};

				ir@3,0 {
					reg = <0x00000003 0x00000000 0x00000010>;
				};

				fpga@7,0 {
					compatible = "Ebony-FPGA";
					reg = <0x00000007 0x00000000 0x00000010>;
					virtual-reg = <0xe8300000>;
				};
			};

			UART0: serial@40000200 {
				device_type = "serial";
				compatible = "ns16550";
				reg = <0x40000200 0x00000008>;
				virtual-reg = <0xe0000200>;
				clock-frequency = <11059200>;
				current-speed = <9600>;
				interrupt-parent = <&UIC0>;
				interrupts = <0x0 0x4>;
			};

			UART1: serial@40000300 {
				device_type = "serial";
				compatible = "ns16550";
				reg = <0x40000300 0x00000008>;
				virtual-reg = <0xe0000300>;
				clock-frequency = <11059200>;
				current-speed = <9600>;
				interrupt-parent = <&UIC0>;
				interrupts = <0x1 0x4>;
			};

			IIC0: i2c@40000400 {
				/* FIXME */
				compatible = "ibm,iic-440gp", "ibm,iic";
				reg = <0x40000400 0x00000014>;
				interrupt-parent = <&UIC0>;
				interrupts = <0x2 0x4>;
			};
			IIC1: i2c@40000500 {
				/* FIXME */
				compatible = "ibm,iic-440gp", "ibm,iic";
				reg = <0x40000500 0x00000014>;
				interrupt-parent = <&UIC0>;
				interrupts = <0x3 0x4>;
			};

			GPIO0: gpio@40000700 {
				/* FIXME */
				compatible = "ibm,gpio-440gp";
				reg = <0x40000700 0x00000020>;
			};

			ZMII0: emac-zmii@40000780 {
				compatible = "ibm,zmii-440gp", "ibm,zmii";
				reg = <0x40000780 0x0000000c>;
			};

			EMAC0: ethernet@40000800 {
				device_type = "network";
				compatible = "ibm,emac-440gp", "ibm,emac";
				interrupt-parent = <&UIC1>;
				interrupts = <0x1c 0x4 0x1d 0x4>;
				reg = <0x40000800 0x00000070>;
				local-mac-address = [000000000000]; // Filled in by zImage
				mal-device = <&MAL0>;
				mal-tx-channel = <0 1>;
				mal-rx-channel = <0>;
				cell-index = <0>;
				max-frame-size = <1500>;
				rx-fifo-size = <4096>;
				tx-fifo-size = <2048>;
				phy-mode = "rmii";
				phy-map = <0x00000001>;
				zmii-device = <&ZMII0>;
				zmii-channel = <0>;
			};
			EMAC1: ethernet@40000900 {
				device_type = "network";
				compatible = "ibm,emac-440gp", "ibm,emac";
				interrupt-parent = <&UIC1>;
				interrupts = <0x1e 0x4 0x1f 0x4>;
				reg = <0x40000900 0x00000070>;
				local-mac-address = [000000000000]; // Filled in by zImage
				mal-device = <&MAL0>;
				mal-tx-channel = <2 3>;
				mal-rx-channel = <1>;
				cell-index = <1>;
				max-frame-size = <1500>;
				rx-fifo-size = <4096>;
				tx-fifo-size = <2048>;
				phy-mode = "rmii";
				phy-map = <0x00000001>;
				zmii-device = <&ZMII0>;
				zmii-channel = <1>;
			};


			GPT0: gpt@40000a00 {
				/* FIXME */
				reg = <0x40000a00 0x000000d4>;
				interrupt-parent = <&UIC0>;
				interrupts = <0x12 0x4 0x13 0x4 0x14 0x4 0x15 0x4 0x16 0x4>;
			};

		};

		PCIX0: pci@20ec00000 {
			device_type = "pci";
			#interrupt-cells = <1>;
			#size-cells = <2>;
			#address-cells = <3>;
			compatible = "ibm,plb440gp-pcix", "ibm,plb-pcix";
			primary;
			reg = <0x00000002 0x0ec00000 0x00000008	/* Config space access */
			       0x00000000 0x00000000 0x00000000		/* no IACK cycles */
			       0x00000002 0x0ed00000 0x00000004     /* Special cycles */
			       0x00000002 0x0ec80000 0x000000f0	/* Internal registers */
			       0x00000002 0x0ec80100 0x000000fc>;	/* Internal messaging registers */

			/* Outbound ranges, one memory and one IO,
			 * later cannot be changed
			 */
			ranges = <0x02000000 0x00000000 0x80000000 0x00000003 0x80000000 0x00000000 0x80000000
				  0x01000000 0x00000000 0x00000000 0x00000002 0x08000000 0x00000000 0x00010000>;

			/* Inbound 2GB range starting at 0 */
			dma-ranges = <0x42000000 0x0 0x0 0x0 0x0 0x0 0x80000000>;

			/* Ebony has all 4 IRQ pins tied together per slot */
			interrupt-map-mask = <0xf800 0x0 0x0 0x0>;
			interrupt-map = <
				/* IDSEL 1 */
				0x800 0x0 0x0 0x0 &UIC0 0x17 0x8

				/* IDSEL 2 */
				0x1000 0x0 0x0 0x0 &UIC0 0x18 0x8

				/* IDSEL 3 */
				0x1800 0x0 0x0 0x0 &UIC0 0x19 0x8

				/* IDSEL 4 */
				0x2000 0x0 0x0 0x0 &UIC0 0x1a 0x8
			>;
		};
	};

	chosen {
		stdout-path = "/plb/opb/serial@40000200";
	};
};