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>

1 files changed, 18 insertions, 38 deletions

diff --git a/arch/arm/mach-orion5x/pci.c b/arch/arm/mach-orion5x/pci.c
index cb19e1661bb3..6921d49b988d 100644
--- a/arch/arm/mach-orion5x/pci.c
+++ b/arch/arm/mach-orion5x/pci.c
@@ -162,35 +162,25 @@ static int __init pcie_setup(struct pci_sys_data *sys)
 		pcie_ops.read = pcie_rd_conf_wa;
 	}
 
+	pci_ioremap_io(sys->busnr * SZ_64K, ORION5X_PCIE_IO_PHYS_BASE);
+
 	/*
 	 * Request resources.
 	 */
-	res = kzalloc(sizeof(struct resource) * 2, GFP_KERNEL);
+	res = kzalloc(sizeof(struct resource), GFP_KERNEL);
 	if (!res)
 		panic("pcie_setup unable to alloc resources");
 
 	/*
-	 * IORESOURCE_IO
-	 */
-	sys->io_offset = 0;
-	res[0].name = "PCIe I/O Space";
-	res[0].flags = IORESOURCE_IO;
-	res[0].start = ORION5X_PCIE_IO_BUS_BASE;
-	res[0].end = res[0].start + ORION5X_PCIE_IO_SIZE - 1;
-	if (request_resource(&ioport_resource, &res[0]))
-		panic("Request PCIe IO resource failed\n");
-	pci_add_resource_offset(&sys->resources, &res[0], sys->io_offset);
-
-	/*
 	 * IORESOURCE_MEM
 	 */
-	res[1].name = "PCIe Memory Space";
-	res[1].flags = IORESOURCE_MEM;
-	res[1].start = ORION5X_PCIE_MEM_PHYS_BASE;
-	res[1].end = res[1].start + ORION5X_PCIE_MEM_SIZE - 1;
-	if (request_resource(&iomem_resource, &res[1]))
+	res->name = "PCIe Memory Space";
+	res->flags = IORESOURCE_MEM;
+	res->start = ORION5X_PCIE_MEM_PHYS_BASE;
+	res->end = res->start + ORION5X_PCIE_MEM_SIZE - 1;
+	if (request_resource(&iomem_resource, res))
 		panic("Request PCIe Memory resource failed\n");
-	pci_add_resource_offset(&sys->resources, &res[1], sys->mem_offset);
+	pci_add_resource_offset(&sys->resources, res, sys->mem_offset);
 
 	return 1;
 }
@@ -489,35 +479,25 @@ static int __init pci_setup(struct pci_sys_data *sys)
 	 */
 	orion5x_setbits(PCI_CMD, PCI_CMD_HOST_REORDER);
 
+	pci_ioremap_io(sys->busnr * SZ_64K, ORION5X_PCI_IO_PHYS_BASE);
+
 	/*
 	 * Request resources
 	 */
-	res = kzalloc(sizeof(struct resource) * 2, GFP_KERNEL);
+	res = kzalloc(sizeof(struct resource), GFP_KERNEL);
 	if (!res)
 		panic("pci_setup unable to alloc resources");
 
 	/*
-	 * IORESOURCE_IO
-	 */
-	sys->io_offset = 0;
-	res[0].name = "PCI I/O Space";
-	res[0].flags = IORESOURCE_IO;
-	res[0].start = ORION5X_PCI_IO_BUS_BASE;
-	res[0].end = res[0].start + ORION5X_PCI_IO_SIZE - 1;
-	if (request_resource(&ioport_resource, &res[0]))
-		panic("Request PCI IO resource failed\n");
-	pci_add_resource_offset(&sys->resources, &res[0], sys->io_offset);
-
-	/*
 	 * IORESOURCE_MEM
 	 */
-	res[1].name = "PCI Memory Space";
-	res[1].flags = IORESOURCE_MEM;
-	res[1].start = ORION5X_PCI_MEM_PHYS_BASE;
-	res[1].end = res[1].start + ORION5X_PCI_MEM_SIZE - 1;
-	if (request_resource(&iomem_resource, &res[1]))
+	res->name = "PCI Memory Space";
+	res->flags = IORESOURCE_MEM;
+	res->start = ORION5X_PCI_MEM_PHYS_BASE;
+	res->end = res->start + ORION5X_PCI_MEM_SIZE - 1;
+	if (request_resource(&iomem_resource, res))
 		panic("Request PCI Memory resource failed\n");
-	pci_add_resource_offset(&sys->resources, &res[1], sys->mem_offset);
+	pci_add_resource_offset(&sys->resources, res, sys->mem_offset);
 
 	return 1;
 }