Santosh Shilimkar | 39e1d4c | 2009-04-28 20:52:00 +0530 | [diff] [blame] | 1 | /* |
| 2 | * The MPU local timer source file. In OMAP4, both cortex-a9 cores have |
| 3 | * own timer in it's MPU domain. These timers will be driving the |
| 4 | * linux kernel SMP tick framework when active. These timers are not |
| 5 | * part of the wake up domain. |
| 6 | * |
| 7 | * Copyright (C) 2009 Texas Instruments, Inc. |
| 8 | * |
| 9 | * Author: |
| 10 | * Santosh Shilimkar <santosh.shilimkar@ti.com> |
| 11 | * |
| 12 | * This file is based on arm realview smp platform file. |
| 13 | * Copyright (C) 2002 ARM Ltd. |
| 14 | * |
| 15 | * This program is free software; you can redistribute it and/or modify |
| 16 | * it under the terms of the GNU General Public License version 2 as |
| 17 | * published by the Free Software Foundation. |
| 18 | */ |
| 19 | #include <linux/init.h> |
| 20 | #include <linux/smp.h> |
| 21 | #include <linux/clockchips.h> |
| 22 | #include <asm/irq.h> |
| 23 | #include <asm/smp_twd.h> |
| 24 | #include <asm/localtimer.h> |
| 25 | |
| 26 | /* |
| 27 | * Setup the local clock events for a CPU. |
| 28 | */ |
Santosh Shilimkar | af90f10 | 2011-02-23 18:53:15 +0100 | [diff] [blame] | 29 | int __cpuinit local_timer_setup(struct clock_event_device *evt) |
Santosh Shilimkar | 39e1d4c | 2009-04-28 20:52:00 +0530 | [diff] [blame] | 30 | { |
Santosh Shilimkar | 07787a8 | 2011-02-22 09:57:47 +0100 | [diff] [blame] | 31 | /* Local timers are not supprted on OMAP4430 ES1.0 */ |
| 32 | if (omap_rev() == OMAP4430_REV_ES1_0) |
| 33 | return -ENXIO; |
| 34 | |
Santosh Shilimkar | 5772ca7 | 2010-02-18 03:14:12 +0530 | [diff] [blame] | 35 | evt->irq = OMAP44XX_IRQ_LOCALTIMER; |
Santosh Shilimkar | 39e1d4c | 2009-04-28 20:52:00 +0530 | [diff] [blame] | 36 | twd_timer_setup(evt); |
Santosh Shilimkar | af90f10 | 2011-02-23 18:53:15 +0100 | [diff] [blame] | 37 | return 0; |
Santosh Shilimkar | 39e1d4c | 2009-04-28 20:52:00 +0530 | [diff] [blame] | 38 | } |
| 39 | |