[PATCH v2 11/15] ARM: orion5x: use fixed PCI i/o mapping
Rob Herring
robherring2 at gmail.com
Fri Jul 13 22:04:07 EDT 2012
From: Rob Herring <rob.herring at calxeda.com>
Move orion5x PCI to fixed i/o mapping and remove io.h.
Signed-off-by: Rob Herring <rob.herring at calxeda.com>
Cc: Lennert Buytenhek <kernel at wantstofly.org>
Acked-by: Nicolas Pitre <nico at linaro.org>
Cc: Jason Cooper <jason at lakedaemon.net>
Cc: Andrew Lunn <andrew at lunn.ch>
---
arch/arm/Kconfig | 1 -
arch/arm/mach-orion5x/common.c | 10 -----
arch/arm/mach-orion5x/include/mach/io.h | 22 ----------
arch/arm/mach-orion5x/include/mach/orion5x.h | 20 +++++----
arch/arm/mach-orion5x/pci.c | 56 +++++++++-----------------
5 files changed, 27 insertions(+), 82 deletions(-)
delete mode 100644 arch/arm/mach-orion5x/include/mach/io.h
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 8a74244..e542f99 100644
--- 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 9148b22..70f7d71 100644
--- a/arch/arm/mach-orion5x/common.c
+++ b/arch/arm/mach-orion5x/common.c
@@ -47,16 +47,6 @@ static struct map_desc orion5x_io_desc[] __initdata = {
.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),
.length = ORION5X_PCIE_WA_SIZE,
diff --git a/arch/arm/mach-orion5x/include/mach/io.h b/arch/arm/mach-orion5x/include/mach/io.h
deleted file mode 100644
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 683e085..1b60131 100644
--- 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 cb19e16..6921d49 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;
}
--
1.7.9.5
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