Commit d191bb69 authored by Rob Herring's avatar Rob Herring
Browse files

ARM: dove: use fixed PCI i/o mapping 



The i/o regions are changed from 1MB to 64KB. It's likely that the 2nd
bus is not setup correctly.

Signed-off-by: default avatarRob Herring <rob.herring@calxeda.com>
Acked-by: default avatarNicolas Pitre <nico@linaro.org>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: default avatarArnd Bergmann <arnd@arndb.de>
parent 8ef6e620

arch/arm/Kconfig

+0 −1
Original line number Diff line number Diff line
@@ -537,7 +537,6 @@ config ARCH_DOVE 
	select PCI

	select ARCH_REQUIRE_GPIOLIB

	select GENERIC_CLOCKEVENTS

	select NEED_MACH_IO_H

	select PLAT_ORION

	help

	  Support for the Marvell Dove SoC 88AP510

arch/arm/mach-dove/common.c

+0 −10
Original line number Diff line number Diff line
@@ -49,16 +49,6 @@ static struct map_desc dove_io_desc[] __initdata = { 
		.pfn		= __phys_to_pfn(DOVE_NB_REGS_PHYS_BASE),

		.length		= DOVE_NB_REGS_SIZE,

		.type		= MT_DEVICE,

	}, {

		.virtual	= DOVE_PCIE0_IO_VIRT_BASE,

		.pfn		= __phys_to_pfn(DOVE_PCIE0_IO_PHYS_BASE),

		.length		= DOVE_PCIE0_IO_SIZE,

		.type		= MT_DEVICE,

	}, {

		.virtual	= DOVE_PCIE1_IO_VIRT_BASE,

		.pfn		= __phys_to_pfn(DOVE_PCIE1_IO_PHYS_BASE),

		.length		= DOVE_PCIE1_IO_SIZE,

		.type		= MT_DEVICE,

	},

};

arch/arm/mach-dove/include/mach/dove.h

+3 −5
Original line number Diff line number Diff line
@@ -50,14 +50,12 @@ 
#define DOVE_NB_REGS_SIZE		SZ_8M



#define DOVE_PCIE0_IO_PHYS_BASE		0xf2000000

#define DOVE_PCIE0_IO_VIRT_BASE		0xfee00000

#define DOVE_PCIE0_IO_BUS_BASE		0x00000000

#define DOVE_PCIE0_IO_SIZE		SZ_1M

#define DOVE_PCIE0_IO_SIZE		SZ_64K



#define DOVE_PCIE1_IO_PHYS_BASE		0xf2100000

#define DOVE_PCIE1_IO_VIRT_BASE		0xfef00000

#define DOVE_PCIE1_IO_BUS_BASE		0x00100000

#define DOVE_PCIE1_IO_SIZE		SZ_1M

#define DOVE_PCIE1_IO_BUS_BASE		0x00010000

#define DOVE_PCIE1_IO_SIZE		SZ_64K



/*

 * Dove Core Registers Map

arch/arm/mach-dove/include/mach/io.h

deleted100644 → 0
+0 −19
Original line number Diff line number Diff line 
/*

 * arch/arm/mach-dove/include/mach/io.h

 *

 * 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.

 */



#ifndef __ASM_ARCH_IO_H

#define __ASM_ARCH_IO_H



#include "dove.h"



#define IO_SPACE_LIMIT		0xffffffff



#define __io(a)  	((void __iomem *)(((a) - DOVE_PCIE0_IO_BUS_BASE) + \

						 DOVE_PCIE0_IO_VIRT_BASE))



#endif

arch/arm/mach-dove/pcie.c

+14 −29
Original line number Diff line number Diff line
@@ -26,9 +26,8 @@ struct pcie_port { 
	u8			root_bus_nr;

	void __iomem		*base;

	spinlock_t		conf_lock;

	char			io_space_name[16];

	char			mem_space_name[16];

	struct resource		res[2];

	struct resource		res;

};



static struct pcie_port pcie_port[2];
@@ -53,24 +52,10 @@ static int __init dove_pcie_setup(int nr, struct pci_sys_data *sys) 


	orion_pcie_setup(pp->base);



	/*

	 * IORESOURCE_IO

	 */

	snprintf(pp->io_space_name, sizeof(pp->io_space_name),

		 "PCIe %d I/O", pp->index);

	pp->io_space_name[sizeof(pp->io_space_name) - 1] = 0;

	pp->res[0].name = pp->io_space_name;

	if (pp->index == 0) {

		pp->res[0].start = DOVE_PCIE0_IO_PHYS_BASE;

		pp->res[0].end = pp->res[0].start + DOVE_PCIE0_IO_SIZE - 1;

	} else {

		pp->res[0].start = DOVE_PCIE1_IO_PHYS_BASE;

		pp->res[0].end = pp->res[0].start + DOVE_PCIE1_IO_SIZE - 1;

	}

	pp->res[0].flags = IORESOURCE_IO;

	if (request_resource(&ioport_resource, &pp->res[0]))

		panic("Request PCIe IO resource failed\n");

	pci_add_resource_offset(&sys->resources, &pp->res[0], sys->io_offset);

	if (pp->index == 0)

		pci_ioremap_io(sys->busnr * SZ_64K, DOVE_PCIE0_IO_PHYS_BASE);

	else

		pci_ioremap_io(sys->busnr * SZ_64K, DOVE_PCIE1_IO_PHYS_BASE);



	/*

	 * IORESOURCE_MEM
@@ -78,18 +63,18 @@ static int __init dove_pcie_setup(int nr, struct pci_sys_data *sys) 
	snprintf(pp->mem_space_name, sizeof(pp->mem_space_name),

		 "PCIe %d MEM", pp->index);

	pp->mem_space_name[sizeof(pp->mem_space_name) - 1] = 0;

	pp->res[1].name = pp->mem_space_name;

	pp->res.name = pp->mem_space_name;

	if (pp->index == 0) {

		pp->res[1].start = DOVE_PCIE0_MEM_PHYS_BASE;

		pp->res[1].end = pp->res[1].start + DOVE_PCIE0_MEM_SIZE - 1;

		pp->res.start = DOVE_PCIE0_MEM_PHYS_BASE;

		pp->res.end = pp->res.start + DOVE_PCIE0_MEM_SIZE - 1;

	} else {

		pp->res[1].start = DOVE_PCIE1_MEM_PHYS_BASE;

		pp->res[1].end = pp->res[1].start + DOVE_PCIE1_MEM_SIZE - 1;

		pp->res.start = DOVE_PCIE1_MEM_PHYS_BASE;

		pp->res.end = pp->res.start + DOVE_PCIE1_MEM_SIZE - 1;

	}

	pp->res[1].flags = IORESOURCE_MEM;

	if (request_resource(&iomem_resource, &pp->res[1]))

	pp->res.flags = IORESOURCE_MEM;

	if (request_resource(&iomem_resource, &pp->res))

		panic("Request PCIe Memory resource failed\n");

	pci_add_resource_offset(&sys->resources, &pp->res[1], sys->mem_offset);

	pci_add_resource_offset(&sys->resources, &pp->res, sys->mem_offset);



	return 1;

}
@@ -210,7 +195,7 @@ static void __init add_pcie_port(int index, unsigned long base) 
		pp->root_bus_nr = -1;

		pp->base = (void __iomem *)base;

		spin_lock_init(&pp->conf_lock);

		memset(pp->res, 0, sizeof(pp->res));

		memset(&pp->res, 0, sizeof(pp->res));

	} else {

		printk(KERN_INFO "link down, ignoring\n");

	}

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