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| author | Manuel Lauss <manuel.lauss@googlemail.com> | 2009-08-22 18:09:27 +0200 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2009-09-17 20:07:50 +0200 |
| commit | 2882b0c63ac6085fd5c18959240b6f7d6ffb8d5b (patch) | |
| tree | a95571203336aaec43dd505c81ab7dc8e46efa78 /arch/mips/kernel/cpu-probe.c | |
| parent | 9d24bafb0d1ecf636f71a56f9d6f071f5c7a882d (diff) | |
| download | op-kernel-dev-2882b0c63ac6085fd5c18959240b6f7d6ffb8d5b.zip op-kernel-dev-2882b0c63ac6085fd5c18959240b6f7d6ffb8d5b.tar.gz | |
MIPS: Alchemy: get rid of allow_au1k_wait
Eliminate the 'allow_au1k_wait' variable. MIPS kernel installs the
Alchemy-specific wait code before timer initialization; if the C0
timer must be used for timekeeping the wait function is set to NULL
which means no wait implementation is available.
As a sideeffect, the 'wait instruction available' output in
/proc/cpuinfo now correctly indicates whether 'wait' is usable.
Run-tested on DB1200.
Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/kernel/cpu-probe.c')
| -rw-r--r-- | arch/mips/kernel/cpu-probe.c | 13 |
1 files changed, 5 insertions, 8 deletions
diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c index 1abe990..6e4807a 100644 --- a/arch/mips/kernel/cpu-probe.c +++ b/arch/mips/kernel/cpu-probe.c @@ -91,16 +91,13 @@ static void rm7k_wait_irqoff(void) local_irq_enable(); } -/* The Au1xxx wait is available only if using 32khz counter or - * external timer source, but specifically not CP0 Counter. */ -int allow_au1k_wait; - +/* + * The Au1xxx wait is available only if using 32khz counter or + * external timer source, but specifically not CP0 Counter. + * alchemy/common/time.c may override cpu_wait! + */ static void au1k_wait(void) { - if (!allow_au1k_wait) - return; - - /* using the wait instruction makes CP0 counter unusable */ __asm__(" .set mips3 \n" " cache 0x14, 0(%0) \n" " cache 0x14, 32(%0) \n" |
