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powerpc/85xx: Don't use generic timebase sync on 64-bit

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85xx currently uses the generic timebase sync mechanism when
CONFIG_KEXEC is enabled, because 32-bit 85xx kexec support does a hard
reset of each core.  64-bit 85xx kexec does not do this, so we neither
need nor want this (nor is the generic timebase sync code built on
ppc64).

FWIW, I don't like the fact that the hard reset is done on 32-bit
kexec, and I especially don't like the timebase sync being triggered
only on the presence of CONFIG_KEXEC rather than actually booting in
that environment, but that's beyond the scope of this patch...

Signed-off-by: Scott Wood <scottwood@freescale.com>
This commit is contained in:
Scott Wood 2015-10-06 22:48:07 -05:00
parent 9f640bf532
commit 1112450a18
1 changed files with 1 additions and 1 deletions
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arch/powerpc/platforms/85xx/smp.c
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@ -344,7 +344,7 @@ struct smp_ops_t smp_85xx_ops = {
.cpu_disable = generic_cpu_disable, .cpu_disable = generic_cpu_disable,
.cpu_die = generic_cpu_die, .cpu_die = generic_cpu_die,
#endif #endif
#ifdef CONFIG_KEXEC #if defined(CONFIG_KEXEC) && !defined(CONFIG_PPC64)
.give_timebase = smp_generic_give_timebase, .give_timebase = smp_generic_give_timebase,
.take_timebase = smp_generic_take_timebase, .take_timebase = smp_generic_take_timebase,
#endif #endif