powerpc/40x: Add support for Netstal HCU4 board

/*

* Device Tree Source for Netstal Maschinen HCU4

* based on the IBM Walnut

*

* Copyright 2008

* Niklaus Giger <niklaus.giger@member.fsf.org>

*

* Copyright 2007 IBM Corp.

* Josh Boyer <jwboyer@linux.vnet.ibm.com>

*

* 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 = <0x1>;

	#size-cells = <0x1>;

	model = "netstal,hcu4";

	compatible = "netstal,hcu4";

	dcr-parent = <0x1>;

	aliases {

		ethernet0 = "/plb/opb/ethernet@ef600800";

		serial0 = "/plb/opb/serial@ef600300";

	};

	cpus {

		#address-cells = <0x1>;

		#size-cells = <0x0>;

		cpu@0 {

			device_type = "cpu";

			model = "PowerPC,405GPr";

			reg = <0x0>;

			clock-frequency = <0>;		/* Filled in by U-Boot */

			timebase-frequency = <0x0>;	/* Filled in by U-Boot */

			i-cache-line-size = <0x20>;

			d-cache-line-size = <0x20>;

			i-cache-size = <0x4000>;

			d-cache-size = <0x4000>;

			dcr-controller;

			dcr-access-method = "native";

			linux,phandle = <0x1>;

		};

	};

	memory {

		device_type = "memory";

		reg = <0x0 0x0>;	/* Filled in by U-Boot */

	};

	UIC0: interrupt-controller {

		compatible = "ibm,uic";

		interrupt-controller;

		cell-index = <0x0>;

		dcr-reg = <0xc0 0x9>;

		#address-cells = <0x0>;

		#size-cells = <0x0>;

		#interrupt-cells = <0x2>;

		linux,phandle = <0x2>;

	};

	plb {

		compatible = "ibm,plb3";

		#address-cells = <0x1>;

		#size-cells = <0x1>;

		ranges;

		clock-frequency = <0x0>;	/* Filled in by U-Boot */

		SDRAM0: memory-controller {

			compatible = "ibm,sdram-405gp";

			dcr-reg = <0x10 0x2>;

		};

		MAL: mcmal {

			compatible = "ibm,mcmal-405gp", "ibm,mcmal";

			dcr-reg = <0x180 0x62>;

			num-tx-chans = <0x1>;

			num-rx-chans = <0x1>;

			interrupt-parent = <0x2>;

			interrupts = <0xb 0x4 0xc 0x4 0xa 0x4 0xd 0x4 0xe 0x4>;

			linux,phandle = <0x3>;

		};

		POB0: opb {

			compatible = "ibm,opb-405gp", "ibm,opb";

			#address-cells = <0x1>;

			#size-cells = <0x1>;

			ranges = <0xef600000 0xef600000 0xa00000>;

			dcr-reg = <0xa0 0x5>;

			clock-frequency = <0x0>;	/* Filled in by U-Boot */

			UART0: serial@ef600300 {

				device_type = "serial";

				compatible = "ns16550";

				reg = <0xef600300 0x8>;

				virtual-reg = <0xef600300>;

				clock-frequency = <0x0>;/* Filled in by U-Boot */

				current-speed = <0>;	/* Filled in by U-Boot */

				interrupt-parent = <0x2>;

				interrupts = <0x0 0x4>;

			};

			IIC: i2c@ef600500 {

				compatible = "ibm,iic-405gp", "ibm,iic";

				reg = <0xef600500 0x11>;

				interrupt-parent = <0x2>;

				interrupts = <0x2 0x4>;

			};

			GPIO: gpio@ef600700 {

				compatible = "ibm,gpio-405gp";

				reg = <0xef600700 0x20>;

			};

			EMAC: ethernet@ef600800 {

				device_type = "network";

				compatible = "ibm,emac-405gp", "ibm,emac";

				interrupt-parent = <0x2>;

				interrupts = <0xf 0x4 0x9 0x4>;

				local-mac-address = [00 00 00 00 00 00];

				reg = <0xef600800 0x70>;

				mal-device = <0x3>;

				mal-tx-channel = <0x0>;

				mal-rx-channel = <0x0>;

				cell-index = <0x0>;

				max-frame-size = <0x5dc>;

				rx-fifo-size = <0x1000>;

				tx-fifo-size = <0x800>;

				phy-mode = "rmii";

				phy-map = <0x1>;

			};

		};

		EBC0: ebc {

			compatible = "ibm,ebc-405gp", "ibm,ebc";

			dcr-reg = <0x12 0x2>;

			#address-cells = <0x2>;

			#size-cells = <0x1>;

			clock-frequency = <0x0>;	/* Filled in by U-Boot */

			sram@0,0 {

				reg = <0x0 0x0 0x80000>;

			};

			flash@0,80000 {

				compatible = "jedec-flash";

				bank-width = <0x1>;

				reg = <0x0 0x80000 0x80000>;

				#address-cells = <0x1>;

				#size-cells = <0x1>;

				partition@0 {

					label = "OpenBIOS";

					reg = <0x0 0x80000>;

					read-only;

				};

			};

		};

	};

	chosen {

		linux,stdout-path = "/plb/opb/serial@ef600300";

	};

};

	help

	  This option enables support for the EP405/EP405PC boards.

config HCU4

	bool "Hcu4"

	depends on 40x

	default y

	select 405GPR

	help

	  This option enables support for the Nestal Maschinen HCU4 board.

config KILAUEA

	bool "Kilauea"

	depends on 40x

obj-$(CONFIG_KILAUEA)				+= kilauea.o

obj-$(CONFIG_HCU4)				+= hcu4.o

obj-$(CONFIG_MAKALU)				+= makalu.o

obj-$(CONFIG_WALNUT)				+= walnut.o

obj-$(CONFIG_XILINX_VIRTEX_GENERIC_BOARD)	+= virtex.o

/*

 * Architecture- / platform-specific boot-time initialization code for

 * IBM PowerPC 4xx based boards. Adapted from original

 * code by Gary Thomas, Cort Dougan <cort@fsmlabs.com>, and Dan Malek

 * <dan@net4x.com>.

 *

 * Copyright(c) 1999-2000 Grant Erickson <grant@lcse.umn.edu>

 *

 * Rewritten and ported to the merged powerpc tree:

 * Copyright 2007 IBM Corporation

 * Josh Boyer <jwboyer@linux.vnet.ibm.com>

 *

 * 2002 (c) MontaVista, Software, Inc.  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.

 */

#include <linux/init.h>

#include <linux/of_platform.h>

#include <asm/machdep.h>

#include <asm/prom.h>

#include <asm/udbg.h>

#include <asm/time.h>

#include <asm/uic.h>

#include <asm/ppc4xx.h>

static __initdata struct of_device_id hcu4_of_bus[] = {

	{ .compatible = "ibm,plb3", },

	{ .compatible = "ibm,opb", },

	{ .compatible = "ibm,ebc", },

	{},

};

static int __init hcu4_device_probe(void)

{

	of_platform_bus_probe(NULL, hcu4_of_bus, NULL);

	return 0;

}

machine_device_initcall(hcu4, hcu4_device_probe);

static int __init hcu4_probe(void)

{

	unsigned long root = of_get_flat_dt_root();

	if (!of_flat_dt_is_compatible(root, "netstal,hcu4"))

		return 0;

	return 1;

}

define_machine(hcu4) {

	.name			= "HCU4",

	.probe			= hcu4_probe,

	.progress		= udbg_progress,

	.init_IRQ		= uic_init_tree,

	.get_irq		= uic_get_irq,

	.restart		= ppc4xx_reset_system,

	.calibrate_decr		= generic_calibrate_decr,

};