45 lines
1.3 KiB
C
45 lines
1.3 KiB
C
/*
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* arch/mips/danube/pmu.c
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
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*
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* Copyright (C) 2007 John Crispin <blogic@openwrt.org>
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*
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*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/version.h>
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#include <asm/danube/danube.h>
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void
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danube_pmu_enable (unsigned int module)
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{
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int err = 1000000;
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writel(readl(DANUBE_PMU_PWDCR) & ~module, DANUBE_PMU_PWDCR);
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while (--err && (readl(DANUBE_PMU_PWDSR) & module)) {}
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if (!err)
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panic("activating PMU module failed!");
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}
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EXPORT_SYMBOL(danube_pmu_enable);
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void
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danube_pmu_disable (unsigned int module)
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{
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writel(readl(DANUBE_PMU_PWDCR) | module, DANUBE_PMU_PWDCR);
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}
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EXPORT_SYMBOL(danube_pmu_disable);
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