[PATCH v3 26/30] ARM: dove: use fixed PCI i/o mapping

[robherring2@gmail.com (Rob Herring)]

From: Rob Herring <rob.herring@calxeda.com>

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

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
---
 arch/arm/Kconfig                       |    1 -
 arch/arm/mach-dove/common.c            |   15 +++++----------
 arch/arm/mach-dove/include/mach/dove.h |    8 +++-----
 arch/arm/mach-dove/include/mach/io.h   |   19 -------------------
 arch/arm/mach-dove/pcie.c              |    9 ++-------
 5 files changed, 10 insertions(+), 42 deletions(-)
 delete mode 100644 arch/arm/mach-dove/include/mach/io.h

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index f2c6727..24fe29e 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -553,7 +553,6 @@ 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
diff --git a/arch/arm/mach-dove/common.c b/arch/arm/mach-dove/common.c
index dd1429a..a062ba6 100644
--- a/arch/arm/mach-dove/common.c
+++ b/arch/arm/mach-dove/common.c
@@ -48,21 +48,16 @@ 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,
 	},
 };
 
 void __init dove_map_io(void)
 {
+	unsigned long pci_io_pfn[] = {
+		__phys_to_pfn(DOVE_PCIE0_IO_PHYS_BASE),
+		__phys_to_pfn(DOVE_PCIE1_IO_PHYS_BASE),
+	};
+	pci_map_io_pfn(pci_io_pfn, ARRAY_SIZE(pci_io_pfn));
 	iotable_init(dove_io_desc, ARRAY_SIZE(dove_io_desc));
 }
 
diff --git a/arch/arm/mach-dove/include/mach/dove.h b/arch/arm/mach-dove/include/mach/dove.h
index ad1165d..50b9046 100644
--- a/arch/arm/mach-dove/include/mach/dove.h
+++ b/arch/arm/mach-dove/include/mach/dove.h
@@ -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
diff --git a/arch/arm/mach-dove/include/mach/io.h b/arch/arm/mach-dove/include/mach/io.h
deleted file mode 100644
index 29c8b85..0000000
--- a/arch/arm/mach-dove/include/mach/io.h
+++ /dev/null
@@ -1,19 +0,0 @@
-/*
- * 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
diff --git a/arch/arm/mach-dove/pcie.c b/arch/arm/mach-dove/pcie.c
index 52e96d3..0a741bd 100644
--- a/arch/arm/mach-dove/pcie.c
+++ b/arch/arm/mach-dove/pcie.c
@@ -59,13 +59,8 @@ static int __init dove_pcie_setup(int nr, struct pci_sys_data *sys)
 		 "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].start = nr * SZ_64K;
+	pp->res[0].end = pp->res[0].start + SZ_64K;
 	pp->res[0].flags = IORESOURCE_IO;
 	if (request_resource(&ioport_resource, &pp->res[0]))
 		panic("Request PCIe IO resource failed\n");
-- 
1.7.5.4