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Commit 04d76b93 authored by Guennadi Liakhovetski's avatar Guennadi Liakhovetski Committed by Paul Mackerras
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[POWERPC] Linkstation / kurobox support 



Support for the Kurobox(HG)/LinkStation-I NAS systems by Buffalo
Technology, should be also applicable to the PPC TeraStation family.

Signed-off-by: default avatarGuennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: default avatarKumar Gala <galak@kernel.crashing.org>
Signed-off-by: default avatarPaul Mackerras <paulus@samba.org>
parent 57933f8f

arch/powerpc/boot/dts/kuroboxHG.dts

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+148 −0
Original line number Diff line number Diff line 
/*

 * Device Tree Souce for Buffalo KuroboxHG

 *

 * Choose CONFIG_LINKSTATION to build a kernel for KuroboxHG, or use

 * the default configuration linkstation_defconfig.

 *

 * Based on sandpoint.dts

 *

 * 2006 (c) G. Liakhovetski <g.liakhovetski@gmx.de>

 *

 * 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.



XXXX add flash parts, rtc, ??



build with: "dtc -f -I dts -O dtb -o kuroboxHG.dtb -V 16 kuroboxHG.dts"





 */



/ {

	linux,phandle = <1000>;

	model = "KuroboxHG";

	compatible = "linkstation";

	#address-cells = <1>;

	#size-cells = <1>;



	cpus {

		linux,phandle = <2000>;

		#cpus = <1>;

		#address-cells = <1>;

		#size-cells = <0>;



		PowerPC,603e { /* Really 8241 */

			linux,phandle = <2100>;

			linux,boot-cpu;

			device_type = "cpu";

			reg = <0>;

			clock-frequency = <fdad680>;	/* Fixed by bootwrapper */

			timebase-frequency = <1F04000>; /* Fixed by bootwrapper */

			bus-frequency = <0>;		/* From bootloader */

			/* Following required by dtc but not used */

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

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

			i-cache-size = <4000>;

			d-cache-size = <4000>;

		};

	};



	memory {

		linux,phandle = <3000>;

		device_type = "memory";

		reg = <00000000 08000000>;

	};



	soc10x { /* AFAICT need to make soc for 8245's uarts to be defined */

		linux,phandle = <4000>;

		#address-cells = <1>;

		#size-cells = <1>;

		#interrupt-cells = <2>;

		device_type = "soc";

		compatible = "mpc10x";

		store-gathering = <0>; /* 0 == off, !0 == on */

		reg = <80000000 00100000>;

		ranges = <80000000 80000000 70000000	/* pci mem space */

			  fc000000 fc000000 00100000	/* EUMB */

			  fe000000 fe000000 00c00000	/* pci i/o space */

			  fec00000 fec00000 00300000	/* pci cfg regs */

			  fef00000 fef00000 00100000>;	/* pci iack */



		i2c@80003000 {

			linux,phandle = <4300>;

			device_type = "i2c";

			compatible = "fsl-i2c";

			reg = <80003000 1000>;

			interrupts = <5 2>;

			interrupt-parent = <4400>;

		};



		serial@80004500 {

			linux,phandle = <4511>;

			device_type = "serial";

			compatible = "ns16550";

			reg = <80004500 8>;

			clock-frequency = <7c044a8>;

			current-speed = <2580>;

			interrupts = <9 2>;

			interrupt-parent = <4400>;

		};



		serial@80004600 {

			linux,phandle = <4512>;

			device_type = "serial";

			compatible = "ns16550";

			reg = <80004600 8>;

			clock-frequency = <7c044a8>;

			current-speed = <e100>;

			interrupts = <a 0>;

			interrupt-parent = <4400>;

		};



		pic@80040000 {

			linux,phandle = <4400>;

			#interrupt-cells = <2>;

			#address-cells = <0>;

			device_type = "open-pic";

			compatible = "chrp,open-pic";

			interrupt-controller;

			reg = <80040000 40000>;

			built-in;

		};



		pci@fec00000 {

			linux,phandle = <4500>;

			#address-cells = <3>;

			#size-cells = <2>;

			#interrupt-cells = <1>;

			device_type = "pci";

			compatible = "mpc10x-pci";

			reg = <fec00000 400000>;

			ranges = <01000000 0        0 fe000000 0 00c00000

				  02000000 0 80000000 80000000 0 70000000>;

			bus-range = <0 ff>;

			clock-frequency = <7f28155>;

			interrupt-parent = <4400>;

			interrupt-map-mask = <f800 0 0 7>;

			interrupt-map = <

				/* IDSEL 0x11 - IRQ0 ETH */

				5800 0 0 1 4400 0 1

				5800 0 0 2 4400 1 1

				5800 0 0 3 4400 2 1

				5800 0 0 4 4400 3 1

				/* IDSEL 0x12 - IRQ1 IDE0 */

				6000 0 0 1 4400 1 1

				6000 0 0 2 4400 2 1

				6000 0 0 3 4400 3 1

				6000 0 0 4 4400 0 1

				/* IDSEL 0x14 - IRQ3 USB2.0 */

				7000 0 0 1 4400 3 1

				7000 0 0 2 4400 3 1

				7000 0 0 3 4400 3 1

				7000 0 0 4 4400 3 1

			>;

		};

	};

};

arch/powerpc/configs/linkstation_defconfig

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+1583 −0

File added.

Preview size limit exceeded, changes collapsed.

arch/powerpc/platforms/embedded6xx/Kconfig

+15 −3
Original line number Diff line number Diff line
@@ -74,6 +74,18 @@ config SANDPOINT 
	  Select SANDPOINT if configuring for a Motorola Sandpoint X3

	  (any flavor).



config LINKSTATION

	bool "Linkstation / Kurobox(HG) from Buffalo"

	select MPIC

	select FSL_SOC

	select PPC_UDBG_16550 if SERIAL_8250

	help

	  Select LINKSTATION if configuring for one of PPC- (MPC8241)

	  based NAS systems from Buffalo Technology. So far only

	  KuroboxHG has been tested. In the future classical Kurobox,

	  Linkstation-I HD-HLAN and HD-HGLAN versions, and PPC-based

	  Terastation systems should be supported too.



config MPC7448HPC2

	bool "Freescale MPC7448HPC2(Taiga)"

	select TSI108_BRIDGE
@@ -196,7 +208,7 @@ config PPC_GEN550 
	depends on SANDPOINT || SPRUCE || PPLUS || \

		PRPMC750 || PRPMC800 || LOPEC || \

		(EV64260 && !SERIAL_MPSC) || CHESTNUT || RADSTONE_PPC7D || \

		83xx

		83xx || LINKSTATION

	default y



config FORCE
@@ -270,13 +282,13 @@ config EPIC_SERIAL_MODE 


config MPC10X_BRIDGE

	bool

	depends on POWERPMC250 || LOPEC || SANDPOINT

	depends on POWERPMC250 || LOPEC || SANDPOINT || LINKSTATION

	select PPC_INDIRECT_PCI

	default y



config MPC10X_OPENPIC

	bool

	depends on POWERPMC250 || LOPEC || SANDPOINT

	depends on POWERPMC250 || LOPEC || SANDPOINT || LINKSTATION

	default y



config MPC10X_STORE_GATHERING

arch/powerpc/platforms/embedded6xx/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -2,3 +2,4 @@ 
# Makefile for the 6xx/7xx/7xxxx linux kernel.

#

obj-$(CONFIG_MPC7448HPC2)	+= mpc7448_hpc2.o

obj-$(CONFIG_LINKSTATION)	+= linkstation.o ls_uart.o

arch/powerpc/platforms/embedded6xx/linkstation.c

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+211 −0
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/*

 * Board setup routines for the Buffalo Linkstation / Kurobox Platform.

 *

 * Copyright (C) 2006 G. Liakhovetski (g.liakhovetski@gmx.de)

 *

 * Based on sandpoint.c by Mark A. Greer

 *

 * 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/kernel.h>

#include <linux/pci.h>

#include <linux/initrd.h>

#include <linux/root_dev.h>

#include <linux/mtd/physmap.h>



#include <asm/time.h>

#include <asm/prom.h>

#include <asm/mpic.h>

#include <asm/mpc10x.h>

#include <asm/pci-bridge.h>



static struct mtd_partition linkstation_physmap_partitions[] = {

	{

		.name   = "mtd_firmimg",

		.offset = 0x000000,

		.size   = 0x300000,

	},

	{

		.name   = "mtd_bootcode",

		.offset = 0x300000,

		.size   = 0x070000,

	},

	{

		.name   = "mtd_status",

		.offset = 0x370000,

		.size   = 0x010000,

	},

	{

		.name   = "mtd_conf",

		.offset = 0x380000,

		.size   = 0x080000,

	},

	{

		.name   = "mtd_allflash",

		.offset = 0x000000,

		.size   = 0x400000,

	},

	{

		.name   = "mtd_data",

		.offset = 0x310000,

		.size   = 0x0f0000,

	},

};



static int __init add_bridge(struct device_node *dev)

{

	int len;

	struct pci_controller *hose;

	int *bus_range;



	printk("Adding PCI host bridge %s\n", dev->full_name);



	bus_range = (int *) get_property(dev, "bus-range", &len);

	if (bus_range == NULL || len < 2 * sizeof(int))

		printk(KERN_WARNING "Can't get bus-range for %s, assume"

				" bus 0\n", dev->full_name);



	hose = pcibios_alloc_controller();

	if (hose == NULL)

		return -ENOMEM;

	hose->first_busno = bus_range ? bus_range[0] : 0;

	hose->last_busno = bus_range ? bus_range[1] : 0xff;

	hose->arch_data = dev;

	setup_indirect_pci(hose, 0xfec00000, 0xfee00000);



	/* Interpret the "ranges" property */

	/* This also maps the I/O region and sets isa_io/mem_base */

	pci_process_bridge_OF_ranges(hose, dev, 1);



	return 0;

}



static void __init linkstation_setup_arch(void)

{

	struct device_node *np;

#ifdef CONFIG_MTD_PHYSMAP

	physmap_set_partitions(linkstation_physmap_partitions,

			       ARRAY_SIZE(linkstation_physmap_partitions));

#endif



#ifdef CONFIG_BLK_DEV_INITRD

	if (initrd_start)

		ROOT_DEV = Root_RAM0;

	else

#endif

#ifdef	CONFIG_ROOT_NFS

		ROOT_DEV = Root_NFS;

#else

		ROOT_DEV = Root_HDA1;

#endif



	/* Lookup PCI host bridges */

	for (np = NULL; (np = of_find_node_by_type(np, "pci")) != NULL;)

		add_bridge(np);



	printk(KERN_INFO "BUFFALO Network Attached Storage Series\n");

	printk(KERN_INFO "(C) 2002-2005 BUFFALO INC.\n");

}



/*

 * Interrupt setup and service.  Interrrupts on the linkstation come

 * from the four PCI slots plus onboard 8241 devices: I2C, DUART.

 */

static void __init linkstation_init_IRQ(void)

{

	struct mpic *mpic;

	struct device_node *dnp;

	void *prop;

	int size;

	phys_addr_t paddr;



	dnp = of_find_node_by_type(NULL, "open-pic");

	if (dnp == NULL)

		return;



	prop = (struct device_node *)get_property(dnp, "reg", &size);

	paddr = (phys_addr_t)of_translate_address(dnp, prop);



	mpic = mpic_alloc(dnp, paddr, MPIC_PRIMARY | MPIC_WANTS_RESET, 4, 32, " EPIC     ");

	BUG_ON(mpic == NULL);



	/* PCI IRQs */

	mpic_assign_isu(mpic, 0, paddr + 0x10200);



	/* I2C */

	mpic_assign_isu(mpic, 1, paddr + 0x11000);



	/* ttyS0, ttyS1 */

	mpic_assign_isu(mpic, 2, paddr + 0x11100);



	mpic_init(mpic);

}



extern void avr_uart_configure(void);

extern void avr_uart_send(const char);



static void linkstation_restart(char *cmd)

{

	local_irq_disable();



	/* Reset system via AVR */

	avr_uart_configure();

	/* Send reboot command */

	avr_uart_send('C');



	for(;;)  /* Spin until reset happens */

		avr_uart_send('G');	/* "kick" */

}



static void linkstation_power_off(void)

{

	local_irq_disable();



	/* Power down system via AVR */

	avr_uart_configure();

	/* send shutdown command */

	avr_uart_send('E');



	for(;;)  /* Spin until power-off happens */

		avr_uart_send('G');	/* "kick" */

	/* NOTREACHED */

}



static void linkstation_halt(void)

{

	linkstation_power_off();

	/* NOTREACHED */

}



static void linkstation_show_cpuinfo(struct seq_file *m)

{

	seq_printf(m, "vendor\t\t: Buffalo Technology\n");

	seq_printf(m, "machine\t\t: Linkstation I/Kurobox(HG)\n");

}



static int __init linkstation_probe(void)

{

	unsigned long root;



	root = of_get_flat_dt_root();



	if (!of_flat_dt_is_compatible(root, "linkstation"))

		return 0;

	return 1;

}



define_machine(linkstation){

	.name 			= "Buffalo Linkstation",

	.probe 			= linkstation_probe,

	.setup_arch 		= linkstation_setup_arch,

	.init_IRQ 		= linkstation_init_IRQ,

	.show_cpuinfo 		= linkstation_show_cpuinfo,

	.get_irq 		= mpic_get_irq,

	.restart 		= linkstation_restart,

	.power_off 		= linkstation_power_off,

	.halt	 		= linkstation_halt,

	.calibrate_decr 	= generic_calibrate_decr,

};