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Diffstat (limited to 'ANDROID_3.4.5/arch/arm/mach-imx/hotplug.c')
-rw-r--r--ANDROID_3.4.5/arch/arm/mach-imx/hotplug.c84
1 files changed, 0 insertions, 84 deletions
diff --git a/ANDROID_3.4.5/arch/arm/mach-imx/hotplug.c b/ANDROID_3.4.5/arch/arm/mach-imx/hotplug.c
deleted file mode 100644
index 20ed2d56..00000000
--- a/ANDROID_3.4.5/arch/arm/mach-imx/hotplug.c
+++ /dev/null
@@ -1,84 +0,0 @@
-/*
- * Copyright 2011 Freescale Semiconductor, Inc.
- * Copyright 2011 Linaro Ltd.
- *
- * The code contained herein is licensed under the GNU General Public
- * License. You may obtain a copy of the GNU General Public License
- * Version 2 or later at the following locations:
- *
- * http://www.opensource.org/licenses/gpl-license.html
- * http://www.gnu.org/copyleft/gpl.html
- */
-
-#include <linux/errno.h>
-#include <asm/cacheflush.h>
-#include <asm/cp15.h>
-#include <mach/common.h>
-
-int platform_cpu_kill(unsigned int cpu)
-{
- return 1;
-}
-
-static inline void cpu_enter_lowpower(void)
-{
- unsigned int v;
-
- flush_cache_all();
- asm volatile(
- "mcr p15, 0, %1, c7, c5, 0\n"
- " mcr p15, 0, %1, c7, c10, 4\n"
- /*
- * Turn off coherency
- */
- " mrc p15, 0, %0, c1, c0, 1\n"
- " bic %0, %0, %3\n"
- " mcr p15, 0, %0, c1, c0, 1\n"
- " mrc p15, 0, %0, c1, c0, 0\n"
- " bic %0, %0, %2\n"
- " mcr p15, 0, %0, c1, c0, 0\n"
- : "=&r" (v)
- : "r" (0), "Ir" (CR_C), "Ir" (0x40)
- : "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
- *
- * Called with IRQs disabled
- */
-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);
-}
-
-int platform_cpu_disable(unsigned int cpu)
-{
- /*
- * we don't allow CPU 0 to be shutdown (it is still too special
- * e.g. clock tick interrupts)
- */
- return cpu == 0 ? -EPERM : 0;
-}