ARM: imx6: spin the cpu until hardware takes it down

[pandora-kernel.git] / arch / arm / mach-imx / hotplug.c

diff --git a/arch/arm/mach-imx/hotplug.c b/arch/arm/mach-imx/hotplug.c
index 20ed2d5..f8f7437 100644 (file)
--- a/arch/arm/mach-imx/hotplug.c
+++ b/arch/arm/mach-imx/hotplug.c
@@ -42,22 +42,6 @@ static inline void cpu_enter_lowpower(void)
          : "cc");
 }
 
-static inline void cpu_leave_lowpower(void)
-{
-       unsigned int v;
-
-       asm volatile(
-               "mrc    p15, 0, %0, c1, c0, 0\n"
-       "       orr     %0, %0, %1\n"
-       "       mcr     p15, 0, %0, c1, c0, 0\n"
-       "       mrc     p15, 0, %0, c1, c0, 1\n"
-       "       orr     %0, %0, %2\n"
-       "       mcr     p15, 0, %0, c1, c0, 1\n"
-         : "=&r" (v)
-         : "Ir" (CR_C), "Ir" (0x40)
-         : "cc");
-}
-
 /*
  * platform-specific code to shutdown a CPU
  *
@@ -67,11 +51,10 @@ void platform_cpu_die(unsigned int cpu)
 {
        cpu_enter_lowpower();
        imx_enable_cpu(cpu, false);
-       cpu_do_idle();
-       cpu_leave_lowpower();
 
-       /* We should never return from idle */
-       panic("cpu %d unexpectedly exit from shutdown\n", cpu);
+       /* spin here until hardware takes it down */
+       while (1)
+               ;
 }
 
 int platform_cpu_disable(unsigned int cpu)