From 450008b5a62bb09445ae05c4d01d510386c9435d Mon Sep 17 00:00:00 2001 From: Deepak Saxena Date: Wed, 6 Jul 2005 23:06:05 +0100 Subject: [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 --- arch/arm/mach-ixp4xx/common-pci.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'arch/arm') diff --git a/arch/arm/mach-ixp4xx/common-pci.c b/arch/arm/mach-ixp4xx/common-pci.c index aa92e370883..2b544363c07 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"; -- cgit v1.2.3