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ARM: imx: do not return from imx_cpu_die() call

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When imx_cpu_die() is being called, the cpu should never return from the
call but just in WFI and wait for hardware to take it down.  So let's
do cpu_do_idle() repeatly in the call.  Doing this help improve the
relibility of hotplug operation.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
This commit is contained in:
Shawn Guo 2013-10-09 15:29:14 +08:00
parent 85920f3960
commit fcd75f921d
1 changed files with 3 additions and 1 deletions
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4
arch/arm/mach-imx/hotplug.c
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@ -52,7 +52,9 @@ void imx_cpu_die(unsigned int cpu)
* the register being cleared to kill the cpu.
*/
imx_set_cpu_arg(cpu, ~0);
cpu_do_idle();
while (1)
cpu_do_idle();
}
int imx_cpu_kill(unsigned int cpu)