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| author | Tony Lindgren <tony@atomide.com> | 2012-09-05 21:06:08 +0400 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2012-09-05 21:06:08 +0400 |
| commit | 580a7ce8fb5012c0c0afe592bdafd482a3679911 (patch) | |
| tree | 3fb6b00359a63d8d2e33005599046c105956d314 /arch/arm/mach-imx/hotplug.c | |
| parent | a17fb8f520c3c662686aa54a86773f354002c7d3 (diff) | |
| parent | e534e871a94ba2e3bfdf0edd3685eb805fc960d8 (diff) | |
| download | linux-580a7ce8fb5012c0c0afe592bdafd482a3679911.tar.xz | |
Merge branch 'fixes-wakeupgen' into fixes
Diffstat (limited to 'arch/arm/mach-imx/hotplug.c')
| -rw-r--r-- | arch/arm/mach-imx/hotplug.c | 23 |
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) |