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| author | Dan Williams <dan.j.williams@intel.com> | 2006-12-29 01:30:24 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2006-12-30 17:05:08 +0000 |
| commit | b0b1d60a64054697ef828e0565f006cc0f823590 (patch) | |
| tree | 3ca024704b8f7967d460f954db68f0aaadaf7d25 | |
| parent | 4cc2f7a84d64d25a16bb9383148c1467284e2356 (diff) | |
| download | linux-b0b1d60a64054697ef828e0565f006cc0f823590.tar.gz linux-b0b1d60a64054697ef828e0565f006cc0f823590.tar.bz2 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>
| -rw-r--r-- | arch/arm/mach-iop13xx/io.c | 19 | ||||
| -rw-r--r-- | include/asm-arm/arch-iop13xx/io.h | 3 |
2 files changed, 21 insertions, 1 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) { diff --git a/include/asm-arm/arch-iop13xx/io.h b/include/asm-arm/arch-iop13xx/io.h index db6de2480a24..5a7bdb526606 100644 --- a/include/asm-arm/arch-iop13xx/io.h +++ b/include/asm-arm/arch-iop13xx/io.h @@ -21,10 +21,11 @@ #define IO_SPACE_LIMIT 0xffffffff -#define __io(a) (a) +#define __io(a) __iop13xx_io(a) #define __mem_pci(a) (a) #define __mem_isa(a) (a) +extern void __iomem * __iop13xx_io(unsigned long io_addr); extern void __iomem * __ioremap(unsigned long, size_t, unsigned long); extern void __iomem *__iop13xx_ioremap(unsigned long cookie, size_t size, unsigned long flags); |