| /* |
| * SMP support for R-Mobile / SH-Mobile |
| * |
| * Copyright (C) 2010 Magnus Damm |
| * |
| * Based on realview, Copyright (C) 2002 ARM Ltd, All Rights Reserved |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 as |
| * published by the Free Software Foundation. |
| */ |
| #include <linux/kernel.h> |
| #include <linux/errno.h> |
| #include <linux/smp.h> |
| |
| int platform_cpu_kill(unsigned int cpu) |
| { |
| return 1; |
| } |
| |
| void platform_cpu_die(unsigned int cpu) |
| { |
| while (1) { |
| /* |
| * here's the WFI |
| */ |
| asm(".word 0xe320f003\n" |
| : |
| : |
| : "memory", "cc"); |
| } |
| } |
| |
| 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; |
| } |