ARM: orion5x: use fixed PCI i/o mapping

Move orion5x PCI to fixed i/o mapping and remove io.h.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Cc: Lennert Buytenhek <kernel@wantstofly.org>
Acked-by: Nicolas Pitre <nico@linaro.org>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 8a742445972e32bfbb2fb5f63b826658da70370b..e542f99091ac0ce415d7dae0eac071ff9c492458 100644 (file)
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -585,7 +585,6 @@ config ARCH_ORION5X
        select PCI
        select ARCH_REQUIRE_GPIOLIB
        select GENERIC_CLOCKEVENTS
-       select NEED_MACH_IO_H
        select PLAT_ORION
        help
          Support for the following Marvell Orion 5x series SoCs:

diff --git a/arch/arm/mach-orion5x/common.c b/arch/arm/mach-orion5x/common.c
index 9148b229d0de925b4f95fea5154421fa462331ba..70f7d712d6f4b6426f28e67ad7e95f225037f242 100644 (file)
--- a/arch/arm/mach-orion5x/common.c
+++ b/arch/arm/mach-orion5x/common.c
@@ -46,16 +46,6 @@ static struct map_desc orion5x_io_desc[] __initdata = {
                .pfn            = __phys_to_pfn(ORION5X_REGS_PHYS_BASE),
                .length         = ORION5X_REGS_SIZE,
                .type           = MT_DEVICE,
-       }, {
-               .virtual        = ORION5X_PCIE_IO_VIRT_BASE,
-               .pfn            = __phys_to_pfn(ORION5X_PCIE_IO_PHYS_BASE),
-               .length         = ORION5X_PCIE_IO_SIZE,
-               .type           = MT_DEVICE,
-       }, {
-               .virtual        = ORION5X_PCI_IO_VIRT_BASE,
-               .pfn            = __phys_to_pfn(ORION5X_PCI_IO_PHYS_BASE),
-               .length         = ORION5X_PCI_IO_SIZE,
-               .type           = MT_DEVICE,
        }, {
                .virtual        = ORION5X_PCIE_WA_VIRT_BASE,
                .pfn            = __phys_to_pfn(ORION5X_PCIE_WA_PHYS_BASE),

diff --git a/arch/arm/mach-orion5x/include/mach/io.h b/arch/arm/mach-orion5x/include/mach/io.h
deleted file mode 100644 (file)
index 1aa5d0a..0000000
--- a/arch/arm/mach-orion5x/include/mach/io.h
+++ /dev/null
@@ -1,22 +0,0 @@
-/*
- * arch/arm/mach-orion5x/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 <mach/orion5x.h>
-#include <asm/sizes.h>
-
-#define IO_SPACE_LIMIT         SZ_2M
-static inline void __iomem *__io(unsigned long addr)
-{
-       return (void __iomem *)(addr + ORION5X_PCIE_IO_VIRT_BASE);
-}
-
-#define __io(a)                         __io(a)
-#endif

diff --git a/arch/arm/mach-orion5x/include/mach/orion5x.h b/arch/arm/mach-orion5x/include/mach/orion5x.h
index 683e085ce1624088f7ec138c1c4fa14c636a2ddd..1b60131b7f60828088b45e55de057d5ce6d13e2b 100644 (file)
--- a/arch/arm/mach-orion5x/include/mach/orion5x.h
+++ b/arch/arm/mach-orion5x/include/mach/orion5x.h
@@ -31,31 +31,29 @@
  * fc000000    device bus mappings (cs0/cs1)
  *
  * virt                phys            size
- * fdd00000    f1000000        1M      on-chip peripheral registers
- * fde00000    f2000000        1M      PCIe I/O space
- * fdf00000    f2100000        1M      PCI I/O space
- * fe000000    f0000000        16M     PCIe WA space (Orion-1/Orion-NAS only)
+ * fe000000    f1000000        1M      on-chip peripheral registers
+ * fee00000    f2000000        64K     PCIe I/O space
+ * fee10000    f2100000        64K     PCI I/O space
+ * fd000000    f0000000        16M     PCIe WA space (Orion-1/Orion-NAS only)
  ****************************************************************************/
 #define ORION5X_REGS_PHYS_BASE         0xf1000000
-#define ORION5X_REGS_VIRT_BASE         0xfdd00000
+#define ORION5X_REGS_VIRT_BASE         0xfe000000
 #define ORION5X_REGS_SIZE              SZ_1M
 
 #define ORION5X_PCIE_IO_PHYS_BASE      0xf2000000
-#define ORION5X_PCIE_IO_VIRT_BASE      0xfde00000
 #define ORION5X_PCIE_IO_BUS_BASE       0x00000000
-#define ORION5X_PCIE_IO_SIZE           SZ_1M
+#define ORION5X_PCIE_IO_SIZE           SZ_64K
 
 #define ORION5X_PCI_IO_PHYS_BASE       0xf2100000
-#define ORION5X_PCI_IO_VIRT_BASE       0xfdf00000
-#define ORION5X_PCI_IO_BUS_BASE                0x00100000
-#define ORION5X_PCI_IO_SIZE            SZ_1M
+#define ORION5X_PCI_IO_BUS_BASE                0x00010000
+#define ORION5X_PCI_IO_SIZE            SZ_64K
 
 #define ORION5X_SRAM_PHYS_BASE         (0xf2200000)
 #define ORION5X_SRAM_SIZE              SZ_8K
 
 /* Relevant only for Orion-1/Orion-NAS */
 #define ORION5X_PCIE_WA_PHYS_BASE      0xf0000000
-#define ORION5X_PCIE_WA_VIRT_BASE      0xfe000000
+#define ORION5X_PCIE_WA_VIRT_BASE      0xfd000000
 #define ORION5X_PCIE_WA_SIZE           SZ_16M
 
 #define ORION5X_PCIE_MEM_PHYS_BASE     0xe0000000

diff --git a/arch/arm/mach-orion5x/pci.c b/arch/arm/mach-orion5x/pci.c
index cb19e1661bb3dbabdde57626f0074d012e8440db..6921d49b988d3152f36295815611ab711cdc57a3 100644 (file)
--- 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;
 }