[POWERPC] Add device tree for Ebony

Add a device tree for the Ebony evaluation board (440GP based). This
tree is not complete or finalized. This tree needs a version of dtc
recent enough to include reference-to-labels to process.

Signed-off-by: David Gibson <[e-mail]>
Signed-off-by: Paul Mackerras <[e-mail]>

arch/powerpc/boot/dts/ebony.dts

···
+/*
+ * Device Tree Source for IBM Ebony
+ *
+ * Copyright (c) 2006, 2007 IBM Corp.
+ * Josh Boyer <[e-mail]>, David Gibson <[e-mail]>
+ *
+ * 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.
+ *
+ * To build:
+ *   dtc -I dts -O asm -o ebony.S -b 0 ebony.dts
+ *   dtc -I dts -O dtb -o ebony.dtb -b 0 ebony.dts
+ */
+
+/ {
+	#address-cells = <2>;
+	#size-cells = <1>;
+	model = "ibm,ebony";
+	compatible = "ibm,ebony";
+	dcr-parent = <&/cpus/PowerPC,440GP@0>;
+
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		PowerPC,440GP@0 {
+			device_type = "cpu";
+			reg = <0>;
+			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 = <0>;
+			d-cache-size = <0>;
+			dcr-controller;
+			dcr-access-method = "native";
+		};
+	};
+
+	memory {
+		device_type = "memory";
+		reg = <0 0 0>; // Filled in by zImage
+	};
+
+	UIC0: interrupt-controller0 {
+		device_type = "ibm,uic";
+		compatible = "ibm,uic-440gp", "ibm,uic";
+		interrupt-controller;
+		cell-index = <0>;
+		dcr-reg = <0c0 009>;
+		#address-cells = <0>;
+		#size-cells = <0>;
+		#interrupt-cells = <2>;
+
+	};
+
+	UIC1: interrupt-controller1 {
+		device_type = "ibm,uic";
+		compatible = "ibm,uic-440gp", "ibm,uic";
+		interrupt-controller;
+		cell-index = <1>;
+		dcr-reg = <0d0 009>;
+		#address-cells = <0>;
+		#size-cells = <0>;
+		#interrupt-cells = <2>;
+		interrupts = <1e 4 1f 4>; /* cascade */
+		interrupt-parent = <&UIC0>;
+	};
+
+	CPC0: cpc {
+		device_type = "ibm,cpc";
+		compatible = "ibm,cpc-440gp";
+		dcr-reg = <0b0 003 0e0 010>;
+		// FIXME: anything else?
+	};
+
+	plb {
+		device_type = "ibm,plb";
+		compatible = "ibm,plb-440gp", "ibm,plb4";
+		#address-cells = <2>;
+		#size-cells = <1>;
+		ranges;
+		clock-frequency = <0>; // Filled in by zImage
+
+		SDRAM0: sdram {
+			device_type = "memory-controller";
+			compatible = "ibm,sdram-440gp", "ibm,sdram";
+			dcr-reg = <010 2>;
+			// FIXME: anything else?
+		};
+
+		DMA0: dma {
+			// FIXME: ???
+			device_type = "ibm,dma-4xx";
+			compatible = "ibm,dma-440gp", "ibm,dma-4xx";
+			dcr-reg = <100 027>;
+		};
+
+		MAL0: mcmal {
+			device_type = "mcmal-dma";
+			compatible = "ibm,mcmal-440gp", "ibm,mcmal";
+			dcr-reg = <180 62>;
+			num-tx-chans = <4>;
+			num-rx-chans = <4>;
+			interrupt-parent = <&MAL0>;
+			interrupts = <0 1 2 3 4>;
+			#interrupt-cells = <1>;
+			#address-cells = <0>;
+			#size-cells = <0>;
+			interrupt-map = </*TXEOB*/ 0 &UIC0 a 4
+					 /*RXEOB*/ 1 &UIC0 b 4
+					 /*SERR*/  2 &UIC1 0 4
+					 /*TXDE*/  3 &UIC1 1 4
+					 /*RXDE*/  4 &UIC1 2 4>;
+			interrupt-map-mask = <ffffffff>;
+		};
+
+		POB0: opb {
+			device_type = "ibm,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 = <00000000 1 00000000 80000000
+				  80000000 1 80000000 80000000>;
+			dcr-reg = <090 00b>;
+			interrupt-parent = <&UIC1>;
+			interrupts = <7 4>;
+			clock-frequency = <0>; // Filled in by zImage
+
+			EBC0: ebc {
+				device_type = "ibm,ebc";
+				compatible = "ibm,ebc-440gp";
+				dcr-reg = <012 2>;
+				#address-cells = <2>;
+				#size-cells = <1>;
+				clock-frequency = <0>; // Filled in by zImage
+				ranges = <0 00000000 fff00000 100000
+					  1 00000000 48000000 100000
+					  2 00000000 ff800000 400000
+					  3 00000000 48200000 100000
+					  7 00000000 48300000 100000>;
+				interrupts = <5 4>;
+				interrupt-parent = <&UIC1>;
+
+				small-flash@0,0 {
+					device_type = "rom";
+					compatible = "direct-mapped";
+					probe-type = "JEDEC";
+					bank-width = <1>;
+					partitions = <0 80000>;
+					partition-names = "OpenBIOS";
+					reg = <0 80000 80000>;
+				};
+
+				ds1743@1,0 {
+					/* NVRAM & RTC */
+					device_type = "nvram";
+					compatible = "ds1743";
+					reg = <1 0 2000>;
+				};
+
+				large-flash@2,0 {
+					device_type = "rom";
+					compatible = "direct-mapped";
+					probe-type = "JEDEC";
+					bank-width = <1>;
+					partitions = <0 380000
+						      280000 80000>;
+					partition-names = "fs", "firmware";
+					reg = <2 0 400000>;
+				};
+
+				ir@3,0 {
+					reg = <3 0 10>;
+				};
+
+				fpga@7,0 {
+					compatible = "Ebony-FPGA";
+					reg = <7 0 10>;
+				};
+			};
+
+			UART0: serial@40000200 {
+				device_type = "serial";
+				compatible = "ns16550";
+				reg = <40000200 8>;
+				virtual-reg = <e0000200>;
+				clock-frequency = <A8C000>;
+				current-speed = <2580>;
+				interrupt-parent = <&UIC0>;
+				interrupts = <0 4>;
+			};
+
+			UART1: serial@40000300 {
+				device_type = "serial";
+				compatible = "ns16550";
+				reg = <40000300 8>;
+				virtual-reg = <e0000300>;
+				clock-frequency = <A8C000>;
+				current-speed = <2580>;
+				interrupt-parent = <&UIC0>;
+				interrupts = <1 4>;
+			};
+
+			IIC0: i2c@40000400 {
+				/* FIXME */
+				device_type = "i2c";
+				compatible = "ibm,iic-440gp", "ibm,iic";
+				reg = <40000400 14>;
+				interrupt-parent = <&UIC0>;
+				interrupts = <2 4>;
+			};
+			IIC1: i2c@40000500 {
+				/* FIXME */
+				device_type = "i2c";
+				compatible = "ibm,iic-440gp", "ibm,iic";
+				reg = <40000500 14>;
+				interrupt-parent = <&UIC0>;
+				interrupts = <3 4>;
+			};
+
+			GPIO0: gpio@40000700 {
+				/* FIXME */
+				device_type = "gpio";
+				compatible = "ibm,gpio-440gp";
+				reg = <40000700 20>;
+			};
+
+			ZMII0: emac-zmii@40000780 {
+				device_type = "emac-zmii";
+				compatible = "ibm,zmii-440gp", "ibm,zmii";
+				reg = <40000780 c>;
+			};
+
+			EMAC0: ethernet@40000800 {
+				linux,network-index = <0>;
+				device_type = "network";
+				compatible = "ibm,emac-440gp", "ibm,emac";
+				interrupt-parent = <&UIC1>;
+				interrupts = <1c 4 1d 4>;
+				reg = <40000800 70>;
+				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 = <5dc>;
+				rx-fifo-size = <1000>;
+				tx-fifo-size = <800>;
+				phy-mode = "rmii";
+				phy-map = <00000001>;
+				zmii-device = <&ZMII0>;
+				zmii-channel = <0>;
+			};
+			EMAC1: ethernet@40000900 {
+				linux,network-index = <1>;
+				device_type = "network";
+				compatible = "ibm,emac-440gp", "ibm,emac";
+				interrupt-parent = <&UIC1>;
+				interrupts = <1e 4 1f 4>;
+				reg = <40000900 70>;
+				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 = <5dc>;
+				rx-fifo-size = <1000>;
+				tx-fifo-size = <800>;
+				phy-mode = "rmii";
+				phy-map = <00000001>;
+				zmii-device = <&ZMII0>;
+				zmii-channel = <1>;
+			};
+
+
+			GPT0: gpt@40000a00 {
+				/* FIXME */
+				reg = <40000a00 d4>;
+				interrupt-parent = <&UIC0>;
+				interrupts = <12 4 13 4 14 4 15 4 16 4>;
+			};
+
+		};
+
+		PCIX0: pci@1234 {
+			device_type = "pci";
+			/* FIXME */
+			reg = <2 0ec00000 8
+			       2 0ec80000 f0
+			       2 0ec80100 fc>;
+		};
+	};
+
+	chosen {
+		linux,stdout-path = "/plb/opb/serial@40000200";
+//		linux,initrd-start = <0>; /* FIXME */
+//		linux,initrd-end = <0>;
+//		bootargs = "";
+	};
+};
+