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authorDeepak Saxena <dsaxena@plexity.net>2005-07-06 23:06:05 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2005-07-06 23:06:05 +0100
commit450008b5a62bb09445ae05c4d01d510386c9435d (patch)
tree894096c083c3b8fa1e8ae93e49aad72ca879cccc /arch/arm
parent7bc7fc50ce272d9a68f8e11707cfc2cc94f4e8f5 (diff)
downloadop-kernel-dev-450008b5a62bb09445ae05c4d01d510386c9435d.zip
op-kernel-dev-450008b5a62bb09445ae05c4d01d510386c9435d.tar.gz
[PATCH] ARM: 2792/1: IXP4xx iomap API implementation
Patch from Deepak Saxena This patch implements the iomap API for Intel IXP4xx NPU systems. We need to implement our own version of the API functions b/c of the PCI hostbridge does not provide the capability to map PCI I/O space into the CPU's physical memory space. In addition, if a system has more than 64M of PCI memory mapped BARs, PCI memory must also be accessed indirectly. This patch changes the assignment of PCI I/O resources to fall into to 0x0000:0xffff range so that we can trap I/O areas in our ioread/iowrite macros. Signed-off-by: Deepak Saxena Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm')
-rw-r--r--arch/arm/mach-ixp4xx/common-pci.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/arm/mach-ixp4xx/common-pci.c b/arch/arm/mach-ixp4xx/common-pci.c
index aa92e37..2b54436 100644
--- a/arch/arm/mach-ixp4xx/common-pci.c
+++ b/arch/arm/mach-ixp4xx/common-pci.c
@@ -453,8 +453,8 @@ int ixp4xx_setup(int nr, struct pci_sys_data *sys)
local_write_config(PCI_COMMAND, 2, PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY);
res[0].name = "PCI I/O Space";
- res[0].start = 0x00001000;
- res[0].end = 0xffff0000;
+ res[0].start = 0x00000000;
+ res[0].end = 0x0000ffff;
res[0].flags = IORESOURCE_IO;
res[1].name = "PCI Memory Space";
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