diff options
Diffstat (limited to 'target/linux/ifxmips/files/arch/mips/danube/pmu.c')
-rw-r--r-- | target/linux/ifxmips/files/arch/mips/danube/pmu.c | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/target/linux/ifxmips/files/arch/mips/danube/pmu.c b/target/linux/ifxmips/files/arch/mips/danube/pmu.c new file mode 100644 index 0000000000..5bb66dbe5b --- /dev/null +++ b/target/linux/ifxmips/files/arch/mips/danube/pmu.c @@ -0,0 +1,45 @@ +/* + * arch/mips/danube/pmu.c + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA. + * + * Copyright (C) 2007 John Crispin <blogic@openwrt.org> + * + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/version.h> +#include <asm/danube/danube.h> + +void +danube_pmu_enable (unsigned int module) +{ + int err = 1000000; + + writel(readl(DANUBE_PMU_PWDCR) & ~module, DANUBE_PMU_PWDCR); + while (--err && (readl(DANUBE_PMU_PWDSR) & module)) {} + + if (!err) + panic("activating PMU module failed!"); +} +EXPORT_SYMBOL(danube_pmu_enable); + +void +danube_pmu_disable (unsigned int module) +{ + writel(readl(DANUBE_PMU_PWDCR) | module, DANUBE_PMU_PWDCR); +} +EXPORT_SYMBOL(danube_pmu_disable); |