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1 | /* |
2 | * Copyright 2011 Calxeda, Inc. | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify it | |
5 | * under the terms and conditions of the GNU General Public License, | |
6 | * version 2, as published by the Free Software Foundation. | |
7 | * | |
8 | * This program is distributed in the hope it will be useful, but WITHOUT | |
9 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
10 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
11 | * more details. | |
12 | * | |
13 | * You should have received a copy of the GNU General Public License along with | |
14 | * this program. If not, see <http://www.gnu.org/licenses/>. | |
15 | */ | |
16 | #include <linux/kernel.h> | |
17 | #include <linux/errno.h> | |
18 | #include <linux/smp.h> | |
19 | ||
20 | #include <asm/smp_scu.h> | |
21 | #include <asm/cacheflush.h> | |
22 | ||
23 | #include "core.h" | |
24 | ||
25 | extern void secondary_startup(void); | |
26 | ||
9680b3d0 MB |
27 | /* |
28 | * platform-specific code to shutdown a CPU | |
29 | * | |
30 | */ | |
7ad71b61 | 31 | void __ref highbank_cpu_die(unsigned int cpu) |
9680b3d0 MB |
32 | { |
33 | flush_cache_all(); | |
34 | ||
35 | highbank_set_cpu_jump(cpu, secondary_startup); | |
36 | scu_power_mode(scu_base_addr, SCU_PM_POWEROFF); | |
37 | ||
38 | cpu_do_idle(); | |
39 | ||
40 | /* We should never return from idle */ | |
41 | panic("highbank: cpu %d unexpectedly exit from shutdown\n", cpu); | |
42 | } |