diff options
Diffstat (limited to 'arch/arm/mach-zynq/platsmp.c')
| -rw-r--r-- | arch/arm/mach-zynq/platsmp.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/arch/arm/mach-zynq/platsmp.c b/arch/arm/mach-zynq/platsmp.c index 06415eeba7e6..f722b5a83a45 100644 --- a/arch/arm/mach-zynq/platsmp.c +++ b/arch/arm/mach-zynq/platsmp.c @@ -136,6 +136,24 @@ static int zynq_cpu_kill(unsigned cpu) zynq_slcr_cpu_stop(cpu); return 1; } + +/* + * platform-specific code to shutdown a CPU + * + * Called with IRQs disabled + */ +static void zynq_platform_cpu_die(unsigned int cpu) +{ + zynq_slcr_cpu_state_write(cpu, true); + + /* + * there is no power-control hardware on this platform, so all + * we can do is put the core into WFI; this is safe as the calling + * code will have already disabled interrupts + */ + for (;;) + cpu_do_idle(); +} #endif struct smp_operations zynq_smp_ops __initdata = { |