Merge branch 'cleanup/io-pci' into next/cleanups

From Rob Herring <robherring2@gmail.com>:

This is the 2nd part of mach/io.h removals. This series removes io.h on
platforms with PCI by creating a fixed virtual I/O mapping and a common
__io() macro.

This version has changed a bit to accommodate Tegra converting its PCIe
host to a platform driver. Now the virtual space is only reserved during
early boot before .map_io() is called. The mapping is not created until
calling pci_ioremap_io which can be done at any point after vmalloc is
initialized.

I've gone back to fixed 64K windows for each PCI bus. This allows
removing all the i/o resource setup from the individually platforms and
placing it within the common ARM PCI code.

I've only tested versatilepb under qemu (with the model hacked up to
actually enable i/o space), so any testing is appreciated. iop3xx and
mv78xx0 have some risk of breaking as the PCI bus addresses are moved
to 0 from matching the cpu host bus addesss.

* cleanup/io-pci:
  ARM: iop3xx: use fixed PCI i/o mapping
  ARM: mv78xx0: use fixed pci i/o mapping
  ARM: iop13xx: use fixed PCI i/o mapping
  iop13xx: use more regular PCI I/O space handling
  ARM: orion5x: use fixed PCI i/o mapping
  ARM: kirkwood: use fixed PCI i/o mapping
  ARM: dove: use fixed PCI i/o mapping
  ARM: footbridge: use fixed PCI i/o mapping
  ARM: shark: use fixed PCI i/o mapping
  ARM: integrator: remove trailing whitespace on pci_v3.c
  ARM: integrator: use fixed PCI i/o mapping
  ARM: tegra: use fixed PCI i/o mapping
  ARM: versatile: use fixed PCI i/o mapping
  ARM: move PCI i/o resource setup into common code
  ARM: Add fixed PCI i/o mapping
  i2c: iop3xx: use standard gpiolib functions
  i2c: iop3xx: clean-up trailing whitespace

Signed-off-by: Arnd Bergmann <arnd@arndb.de>

2 files changed, 9 insertions, 21 deletions

diff --git a/arch/arm/plat-iop/pci.c b/arch/arm/plat-iop/pci.c
index 8daae9b230ea..362474b5c40d 100644
--- a/arch/arm/plat-iop/pci.c
+++ b/arch/arm/plat-iop/pci.c
@@ -192,30 +192,24 @@ int iop3xx_pci_setup(int nr, struct pci_sys_data *sys)
 	if (nr != 0)
 		return 0;
 
-	res = kzalloc(2 * sizeof(struct resource), GFP_KERNEL);
+	res = kzalloc(sizeof(struct resource), GFP_KERNEL);
 	if (!res)
 		panic("PCI: unable to alloc resources");
 
-	res[0].start = IOP3XX_PCI_LOWER_IO_PA;
-	res[0].end   = IOP3XX_PCI_LOWER_IO_PA + IOP3XX_PCI_IO_WINDOW_SIZE - 1;
-	res[0].name  = "IOP3XX PCI I/O Space";
-	res[0].flags = IORESOURCE_IO;
-	request_resource(&ioport_resource, &res[0]);
-
-	res[1].start = IOP3XX_PCI_LOWER_MEM_PA;
-	res[1].end   = IOP3XX_PCI_LOWER_MEM_PA + IOP3XX_PCI_MEM_WINDOW_SIZE - 1;
-	res[1].name  = "IOP3XX PCI Memory Space";
-	res[1].flags = IORESOURCE_MEM;
-	request_resource(&iomem_resource, &res[1]);
+	res->start = IOP3XX_PCI_LOWER_MEM_PA;
+	res->end   = IOP3XX_PCI_LOWER_MEM_PA + IOP3XX_PCI_MEM_WINDOW_SIZE - 1;
+	res->name  = "IOP3XX PCI Memory Space";
+	res->flags = IORESOURCE_MEM;
+	request_resource(&iomem_resource, res);
 
 	/*
 	 * Use whatever translation is already setup.
 	 */
 	sys->mem_offset = IOP3XX_PCI_LOWER_MEM_PA - *IOP3XX_OMWTVR0;
-	sys->io_offset  = IOP3XX_PCI_LOWER_IO_PA - *IOP3XX_OIOWTVR;
 
-	pci_add_resource_offset(&sys->resources, &res[0], sys->io_offset);
-	pci_add_resource_offset(&sys->resources, &res[1], sys->mem_offset);
+	pci_add_resource_offset(&sys->resources, res, sys->mem_offset);
+
+	pci_ioremap_io(0, IOP3XX_PCI_LOWER_IO_PA);
 
 	return 1;
 }
@@ -367,7 +361,6 @@ void __init iop3xx_pci_preinit_cond(void)
 
 void __init iop3xx_pci_preinit(void)
 {
-	pcibios_min_io = 0;
 	pcibios_min_mem = 0;
 
 	iop3xx_atu_disable();
diff --git a/arch/arm/plat-iop/setup.c b/arch/arm/plat-iop/setup.c
index bade586fed0f..5b217f460f18 100644
--- a/arch/arm/plat-iop/setup.c
+++ b/arch/arm/plat-iop/setup.c
@@ -25,11 +25,6 @@ static struct map_desc iop3xx_std_desc[] __initdata = {
 		.pfn		= __phys_to_pfn(IOP3XX_PERIPHERAL_PHYS_BASE),
 		.length		= IOP3XX_PERIPHERAL_SIZE,
 		.type		= MT_UNCACHED,
-	 }, {	/* PCI IO space */
-		.virtual	= IOP3XX_PCI_LOWER_IO_VA,
-		.pfn		= __phys_to_pfn(IOP3XX_PCI_LOWER_IO_PA),
-		.length		= IOP3XX_PCI_IO_WINDOW_SIZE,
-		.type		= MT_DEVICE,
 	 },
 };