diff options
Diffstat (limited to 'arch/arm/mach-omap2/timer-mpu.c')
-rw-r--r-- | arch/arm/mach-omap2/timer-mpu.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/timer-mpu.c b/arch/arm/mach-omap2/timer-mpu.c new file mode 100644 index 00000000..31c0ac4c --- /dev/null +++ b/arch/arm/mach-omap2/timer-mpu.c @@ -0,0 +1,39 @@ +/* + * The MPU local timer source file. In OMAP4, both cortex-a9 cores have + * own timer in it's MPU domain. These timers will be driving the + * linux kernel SMP tick framework when active. These timers are not + * part of the wake up domain. + * + * Copyright (C) 2009 Texas Instruments, Inc. + * + * Author: + * Santosh Shilimkar <santosh.shilimkar@ti.com> + * + * This file is based on arm realview smp platform file. + * Copyright (C) 2002 ARM Ltd. + * + * 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/init.h> +#include <linux/smp.h> +#include <linux/clockchips.h> +#include <asm/irq.h> +#include <asm/smp_twd.h> +#include <asm/localtimer.h> + +/* + * Setup the local clock events for a CPU. + */ +int __cpuinit local_timer_setup(struct clock_event_device *evt) +{ + /* Local timers are not supprted on OMAP4430 ES1.0 */ + if (omap_rev() == OMAP4430_REV_ES1_0) + return -ENXIO; + + evt->irq = OMAP44XX_IRQ_LOCALTIMER; + twd_timer_setup(evt); + return 0; +} + |