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| author | Liviu Dudau <Liviu.Dudau@arm.com> | 2014-09-29 18:29:31 +0400 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2014-10-01 03:08:57 +0400 |
| commit | d1e6dc91b532d3d3dbbd0fa356b775ca320dc2c2 (patch) | |
| tree | 8470f782b1a12d70ccae0ce4ea983e5977a44c50 /arch/arm64/include/asm/io.h | |
| parent | 8b921acfeffdb0b45085da862fc301a2d25ed2cf (diff) | |
| download | linux-d1e6dc91b532d3d3dbbd0fa356b775ca320dc2c2.tar.xz | |
arm64: Add architectural support for PCI
Use the generic PCI domain and OF functions to provide support for PCI
on arm64.
[bhelgaas: Change comments to use generic PCI, not just PCIe. Nothing at
this level is PCIe-specific.]
Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch/arm64/include/asm/io.h')
| -rw-r--r-- | arch/arm64/include/asm/io.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/arm64/include/asm/io.h b/arch/arm64/include/asm/io.h index e0ecdcf6632d..f998d90bc389 100644 --- a/arch/arm64/include/asm/io.h +++ b/arch/arm64/include/asm/io.h @@ -121,7 +121,8 @@ static inline u64 __raw_readq(const volatile void __iomem *addr) /* * I/O port access primitives. */ -#define IO_SPACE_LIMIT 0xffff +#define arch_has_dev_port() (1) +#define IO_SPACE_LIMIT (SZ_32M - 1) #define PCI_IOBASE ((void __iomem *)(MODULES_VADDR - SZ_32M)) static inline u8 inb(unsigned long addr) |