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authorDan Williams <dan.j.williams@intel.com>2006-12-29 01:30:24 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2006-12-30 18:05:08 +0100
commitb0b1d60a64054697ef828e0565f006cc0f823590 (patch)
tree3ca024704b8f7967d460f954db68f0aaadaf7d25 /arch/arm/mach-iop13xx
parent[ARM] 4074/1: Flat loader stack alignment (diff)
downloadlinux-b0b1d60a64054697ef828e0565f006cc0f823590.tar.xz
linux-b0b1d60a64054697ef828e0565f006cc0f823590.zip
[ARM] 4077/1: iop13xx: fix __io() macro
Since iop13xx defines the PCI I/O spaces with physical resource addresses the __io macro needs to perform the physical to virtual conversion. I incorrectly assumed that this would be handled by ioremap, but drivers (like e1000) directly dereference the address returned from __io. Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mach-iop13xx')
-rw-r--r--arch/arm/mach-iop13xx/io.c19
1 files changed, 19 insertions, 0 deletions
diff --git a/arch/arm/mach-iop13xx/io.c b/arch/arm/mach-iop13xx/io.c
index fbf9f88e46ea..e79a1b62600f 100644
--- a/arch/arm/mach-iop13xx/io.c
+++ b/arch/arm/mach-iop13xx/io.c
@@ -21,6 +21,25 @@
#include <asm/hardware.h>
#include <asm/io.h>
+void * __iomem __iop13xx_io(unsigned long io_addr)
+{
+ void __iomem * io_virt;
+
+ switch (io_addr) {
+ case IOP13XX_PCIE_LOWER_IO_PA ... IOP13XX_PCIE_UPPER_IO_PA:
+ io_virt = (void *) IOP13XX_PCIE_IO_PHYS_TO_VIRT(io_addr);
+ break;
+ case IOP13XX_PCIX_LOWER_IO_PA ... IOP13XX_PCIX_UPPER_IO_PA:
+ io_virt = (void *) IOP13XX_PCIX_IO_PHYS_TO_VIRT(io_addr);
+ break;
+ default:
+ BUG();
+ }
+
+ return io_virt;
+}
+EXPORT_SYMBOL(__iop13xx_io);
+
void * __iomem __iop13xx_ioremap(unsigned long cookie, size_t size,
unsigned long flags)
{