c863a2368c
Add support for suspend/resume and poweroff/reboot on a JZ4740 SoC. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/1398/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
57 lines
1.3 KiB
C
57 lines
1.3 KiB
C
/*
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* Copyright (C) 2010, Lars-Peter Clausen <lars@metafoo.de>
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* JZ4740 SoC power management support
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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*/
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#include <linux/init.h>
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#include <linux/pm.h>
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#include <linux/delay.h>
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#include <linux/suspend.h>
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#include <asm/mach-jz4740/clock.h>
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#include "clock.h"
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#include "irq.h"
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static int jz4740_pm_enter(suspend_state_t state)
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{
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jz4740_intc_suspend();
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jz4740_clock_suspend();
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jz4740_clock_set_wait_mode(JZ4740_WAIT_MODE_SLEEP);
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__asm__(".set\tmips3\n\t"
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"wait\n\t"
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".set\tmips0");
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jz4740_clock_set_wait_mode(JZ4740_WAIT_MODE_IDLE);
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jz4740_clock_resume();
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jz4740_intc_resume();
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return 0;
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}
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static struct platform_suspend_ops jz4740_pm_ops = {
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.valid = suspend_valid_only_mem,
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.enter = jz4740_pm_enter,
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};
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static int __init jz4740_pm_init(void)
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{
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suspend_set_ops(&jz4740_pm_ops);
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return 0;
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}
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late_initcall(jz4740_pm_init);
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