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| author | Paul Mackerras <paulus@ozlabs.org> | 2018-03-20 00:46:11 +0300 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2018-03-23 16:36:45 +0300 |
| commit | c0d64cf9fefd58831ce2cc81b2683bfff3760f7a (patch) | |
| tree | 18d0ecc8d279c88e1059dac28b867732827cc670 /arch/powerpc/include/asm/time.h | |
| parent | 7928b2cbe55b2a410a0f5c1f154610059c57b1b2 (diff) | |
| download | linux-c0d64cf9fefd58831ce2cc81b2683bfff3760f7a.tar.xz | |
powerpc: Use feature bit for RTC presence rather than timebase presence
All PowerPC CPUs other than the original PPC601 have a timebase
register rather than the "real-time clock" (RTC) register that the
PPC601 (and the original POWER and POWER2 CPUs) had. Currently
we have a CPU feature bit to indicate the presence of the timebase,
but it makes more sense to use a bit to indicate the unusual
situation rather than the common situation. This therefore defines
a CPU_FTR_USE_RTC bit in place of the CPU_FTR_USE_TB bit, and
arranges for it to be set on PPC601 systems.
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/include/asm/time.h')
| -rw-r--r-- | arch/powerpc/include/asm/time.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/include/asm/time.h b/arch/powerpc/include/asm/time.h index b240666b7bc1..c9ad438cc0a9 100644 --- a/arch/powerpc/include/asm/time.h +++ b/arch/powerpc/include/asm/time.h @@ -46,7 +46,7 @@ struct div_result { /* Accessor functions for the timebase (RTC on 601) registers. */ /* If one day CONFIG_POWER is added just define __USE_RTC as 1 */ #ifdef CONFIG_6xx -#define __USE_RTC() (!cpu_has_feature(CPU_FTR_USE_TB)) +#define __USE_RTC() (cpu_has_feature(CPU_FTR_USE_RTC)) #else #define __USE_RTC() 0 #endif |