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authorOlof Johansson <olof@lixom.net>2012-09-12 22:34:11 -0700
committerOlof Johansson <olof@lixom.net>2012-09-12 22:34:11 -0700
commit025c95a6826ad8acfe871f33c2fa9208beeb38df (patch)
tree220fe156ff60db13bd3a1319f5e20d6b723de5f4 /arch/arm/mach-imx/hotplug.c
parent0558d7a8ed44e6e53aadb04d2e23145efb2aa8a4 (diff)
parent7f744b17140af1a9c8804a1c81c9dae6bb52a7fb (diff)
downloadlinux-rt-025c95a6826ad8acfe871f33c2fa9208beeb38df.tar.gz
Merge branch 'clk' of git://github.com/hzhuang1/linux into next/cleanup
* 'clk' of git://github.com/hzhuang1/linux: ARM: mmp: remove unused definition in APBC and APMU ARM: mmp: move mmp2 clock definition to separated file arm: mmp: move pxa910 clock definition to separated file arm: mmp: move pxa168 clock definition to separated file arm: mmp: make private clock definition exclude from common clock + Linux 3.6-rc4
Diffstat (limited to 'arch/arm/mach-imx/hotplug.c')
-rw-r--r--arch/arm/mach-imx/hotplug.c23
1 files changed, 3 insertions, 20 deletions
diff --git a/arch/arm/mach-imx/hotplug.c b/arch/arm/mach-imx/hotplug.c
index 20ed2d56c1af..f8f7437c83b8 100644
--- 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)