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| author |   Arnd Bergmann <arnd@arndb.de> | 2011-09-03 17:54:44 +0200 |
|---|---|---|
| committer | Arnd Bergmann <arnd@arndb.de> | 2011-10-01 21:11:28 +0200 |
| commit | 06901bd83412db5a31de7526e637101ed0c2c472 (patch) | |
| tree | 50cc9db884105130aae1b78b1d09c86f6996183e /arch/arm/include/asm/io.h | |
| parent | ARM: limit CONFIG_HAVE_IDE to platforms that do (diff) | |
| download | linux-dev-06901bd83412db5a31de7526e637101ed0c2c472.tar.xz linux-dev-06901bd83412db5a31de7526e637101ed0c2c472.zip | |
ARM: add io{read,write}{16,32}be functions
These functions are used in some PCI drivers with big-endian
MMIO space, and they are trivial to add here.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/arm/include/asm/io.h')
| -rw-r--r-- | arch/arm/include/asm/io.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/arm/include/asm/io.h b/arch/arm/include/asm/io.h index d66605dea55a..bad7bfb7af20 100644 --- a/arch/arm/include/asm/io.h +++ b/arch/arm/include/asm/io.h @@ -260,10 +260,16 @@ extern void _memset_io(volatile void __iomem *, int, size_t); #define ioread16(p) ({ unsigned int __v = le16_to_cpu((__force __le16)__raw_readw(p)); __iormb(); __v; }) #define ioread32(p) ({ unsigned int __v = le32_to_cpu((__force __le32)__raw_readl(p)); __iormb(); __v; }) +#define ioread16be(p) ({ unsigned int __v = be16_to_cpu((__force __be16)__raw_readw(p)); __iormb(); __v; }) +#define ioread32be(p) ({ unsigned int __v = be32_to_cpu((__force __be32)__raw_readl(p)); __iormb(); __v; }) + #define iowrite8(v,p) ({ __iowmb(); (void)__raw_writeb(v, p); }) #define iowrite16(v,p) ({ __iowmb(); (void)__raw_writew((__force __u16)cpu_to_le16(v), p); }) #define iowrite32(v,p) ({ __iowmb(); (void)__raw_writel((__force __u32)cpu_to_le32(v), p); }) +#define iowrite16be(v,p) ({ __iowmb(); (void)__raw_writew((__force __u16)cpu_to_be16(v), p); }) +#define iowrite32be(v,p) ({ __iowmb(); (void)__raw_writel((__force __u32)cpu_to_be32(v), p); }) + #define ioread8_rep(p,d,c) __raw_readsb(p,d,c) #define ioread16_rep(p,d,c) __raw_readsw(p,d,c) #define ioread32_rep(p,d,c) __raw_readsl(p,d,c) |