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| author |   Russell King <rmk+kernel@arm.linux.org.uk> | 2012-01-16 09:31:47 +0000 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2012-02-09 15:34:14 +0000 |
| commit | 6ad1b614007c556129989b9f6b020d0d2e058121 (patch) | |
| tree | d146b694cad7d3134b3166f56f401b203e073811 /arch/arm/mach-sa1100/include/mach/neponset.h | |
| parent | ARM: sa11x0: neponset: fix interrupt setup (diff) | |
| download | linux-dev-6ad1b614007c556129989b9f6b020d0d2e058121.tar.xz linux-dev-6ad1b614007c556129989b9f6b020d0d2e058121.zip | |
ARM: sa11x0: neponset: provide function to manipulate NCR_0
Rather than having direct register accesses to NCR_0 scattered amongst
the code, provide a function instead. This contains the necessary
race protection for this platform, ensuring that updates to this
register are safe.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mach-sa1100/include/mach/neponset.h')
| -rw-r--r-- | arch/arm/mach-sa1100/include/mach/neponset.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/arm/mach-sa1100/include/mach/neponset.h b/arch/arm/mach-sa1100/include/mach/neponset.h index ffe2bc45eed0..6032216e1830 100644 --- a/arch/arm/mach-sa1100/include/mach/neponset.h +++ b/arch/arm/mach-sa1100/include/mach/neponset.h @@ -71,4 +71,8 @@ #define NCR_A0VPP (1<<5) #define NCR_A1VPP (1<<6) +void neponset_ncr_frob(unsigned int, unsigned int); +#define neponset_ncr_set(v) neponset_ncr_frob(0, v) +#define neponset_ncr_clear(v) neponset_ncr_frob(v, 0) + #endif |