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author | Arnd Bergmann <arnd@arndb.de> | 2012-02-28 16:42:14 +0400 |
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committer | Arnd Bergmann <arnd@arndb.de> | 2012-02-28 16:42:21 +0400 |
commit | fb0b82b32ce17564bc64cede50bf4a3204eecc60 (patch) | |
tree | 00b5e466074c6fb373d64c493b3341186024acc7 /include/asm-generic/io-64-nonatomic-hi-lo.h | |
parent | a173fc693b25216c5c834978f4fafd731fd4ff94 (diff) | |
parent | 43de6a7dda6e9a7345e218e688f2092f991126f0 (diff) | |
download | linux-fb0b82b32ce17564bc64cede50bf4a3204eecc60.tar.xz |
Merge branch 'board-specific' of git://github.com/hzhuang1/linux into next/boards
* 'board-specific' of git://github.com/hzhuang1/linux: (5 commits)
ARM: pxa: add dummy clock for pxa25x and pxa27x
ARM: mmp: append irq name of gpio device
pxa/hx4700: Fix PXA_GPIO_IRQ_BASE/IRQ_NUM values
pxa/hx4700: Add ASIC3 LED support
pxa/hx4700: Correct StrataFlash block size discovery
(update to v3.3-rc5)
Diffstat (limited to 'include/asm-generic/io-64-nonatomic-hi-lo.h')
-rw-r--r-- | include/asm-generic/io-64-nonatomic-hi-lo.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/include/asm-generic/io-64-nonatomic-hi-lo.h b/include/asm-generic/io-64-nonatomic-hi-lo.h new file mode 100644 index 000000000000..a6806a94250d --- /dev/null +++ b/include/asm-generic/io-64-nonatomic-hi-lo.h @@ -0,0 +1,28 @@ +#ifndef _ASM_IO_64_NONATOMIC_HI_LO_H_ +#define _ASM_IO_64_NONATOMIC_HI_LO_H_ + +#include <linux/io.h> +#include <asm-generic/int-ll64.h> + +#ifndef readq +static inline __u64 readq(const volatile void __iomem *addr) +{ + const volatile u32 __iomem *p = addr; + u32 low, high; + + high = readl(p + 1); + low = readl(p); + + return low + ((u64)high << 32); +} +#endif + +#ifndef writeq +static inline void writeq(__u64 val, volatile void __iomem *addr) +{ + writel(val >> 32, addr + 4); + writel(val, addr); +} +#endif + +#endif /* _ASM_IO_64_NONATOMIC_HI_LO_H_ */ |