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authorMark Brown <broonie@opensource.wolfsonmicro.com>2012-09-05 08:05:11 -0400
committerMark Brown <broonie@opensource.wolfsonmicro.com>2012-09-05 08:05:11 -0400
commit75d8f2931a803b803cb4a850448460475c20f30b (patch)
tree9853b9084fa55609c8e4abbc1763bc500e05da50 /arch/arm/mach-imx/hotplug.c
parentffb690d5aa36d38d7bed7579e3f07b84ff6b3a08 (diff)
parente93c7d1bc350189511d32cec2f0af79c30e7fa47 (diff)
Merge branch 'asoc-omap' into for-3.7
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)
42 : "cc"); 42 : "cc");
43} 43}
44 44
45static inline void cpu_leave_lowpower(void)
46{
47 unsigned int v;
48
49 asm volatile(
50 "mrc p15, 0, %0, c1, c0, 0\n"
51 " orr %0, %0, %1\n"
52 " mcr p15, 0, %0, c1, c0, 0\n"
53 " mrc p15, 0, %0, c1, c0, 1\n"
54 " orr %0, %0, %2\n"
55 " mcr p15, 0, %0, c1, c0, 1\n"
56 : "=&r" (v)
57 : "Ir" (CR_C), "Ir" (0x40)
58 : "cc");
59}
60
61/* 45/*
62 * platform-specific code to shutdown a CPU 46 * platform-specific code to shutdown a CPU
63 * 47 *
@@ -67,11 +51,10 @@ void platform_cpu_die(unsigned int cpu)
67{ 51{
68 cpu_enter_lowpower(); 52 cpu_enter_lowpower();
69 imx_enable_cpu(cpu, false); 53 imx_enable_cpu(cpu, false);
70 cpu_do_idle();
71 cpu_leave_lowpower();
72 54
73 /* We should never return from idle */ 55 /* spin here until hardware takes it down */
74 panic("cpu %d unexpectedly exit from shutdown\n", cpu); 56 while (1)
57 ;
75} 58}
76 59
77int platform_cpu_disable(unsigned int cpu) 60int platform_cpu_disable(unsigned int cpu)