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| author | Deepak Saxena <dsaxena@plexity.net> | 2005-07-06 23:06:05 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2005-07-06 23:06:05 +0100 |
| commit | 450008b5a62bb09445ae05c4d01d510386c9435d (patch) | |
| tree | 894096c083c3b8fa1e8ae93e49aad72ca879cccc /arch | |
| parent | 7bc7fc50ce272d9a68f8e11707cfc2cc94f4e8f5 (diff) | |
| download | linux-450008b5a62bb09445ae05c4d01d510386c9435d.tar.bz2 | |
[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')
| -rw-r--r-- | arch/arm/mach-ixp4xx/common-pci.c | 4 |
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 aa92e3708838..2b544363c078 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"; |