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authorArnd Bergmann <arnd@arndb.de>2011-09-03 17:54:44 +0200
committerArnd Bergmann <arnd@arndb.de>2011-10-01 21:11:28 +0200
commit06901bd83412db5a31de7526e637101ed0c2c472 (patch)
tree50cc9db884105130aae1b78b1d09c86f6996183e /arch/arm/include/asm/io.h
parentd0ee9f404f42e69e4bf4c1afd24a3b6474f61e72 (diff)
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.h6
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)