2 * Copyright 2011 Freescale Semiconductor, Inc.
3 * Copyright 2011 Linaro Ltd.
5 * The code contained herein is licensed under the GNU General Public
6 * License. You may obtain a copy of the GNU General Public License
7 * Version 2 or later at the following locations:
9 * http://www.opensource.org/licenses/gpl-license.html
10 * http://www.gnu.org/copyleft/gpl.html
13 #include <linux/errno.h>
14 #include <asm/cacheflush.h>
16 #include <mach/common.h>
18 static inline void cpu_enter_lowpower(void)
24 "mcr p15, 0, %1, c7, c5, 0\n"
25 " mcr p15, 0, %1, c7, c10, 4\n"
29 " mrc p15, 0, %0, c1, c0, 1\n"
31 " mcr p15, 0, %0, c1, c0, 1\n"
32 " mrc p15, 0, %0, c1, c0, 0\n"
34 " mcr p15, 0, %0, c1, c0, 0\n"
36 : "r" (0), "Ir" (CR_C), "Ir" (0x40)
41 * platform-specific code to shutdown a CPU
43 * Called with IRQs disabled
45 void imx_cpu_die(unsigned int cpu)
48 imx_enable_cpu(cpu, false);
50 /* spin here until hardware takes it down */