target/linux/ar7-2.6/files/arch/mips/ar7/time.c

   1 /*
   2  * $Id$
   3  *
   4  * Copyright (C) 2006, 2007 OpenWrt.org
   5  *
   6  * Carsten Langgaard, carstenl@mips.com
   7  * Copyright (C) 1999,2000 MIPS Technologies, Inc.  All rights reserved.
   8  *
   9  *  This program is free software; you can distribute it and/or modify it
  10  *  under the terms of the GNU General Public License (Version 2) as
  11  *  published by the Free Software Foundation.
  12  *
  13  *  This program is distributed in the hope it will be useful, but WITHOUT
  14  *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  15  *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  16  *  for more details.
  17  *
  18  *  You should have received a copy of the GNU General Public License along
  19  *  with this program; if not, write to the Free Software Foundation, Inc.,
  20  *  59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
  21  *
  22  * Setting up the clock on the MIPS boards.
  23  */
  24
  25 #include <linux/types.h>
  26 #include <linux/init.h>
  27 #include <linux/kernel_stat.h>
  28 #include <linux/sched.h>
  29 #include <linux/spinlock.h>
  30 #include <linux/interrupt.h>
  31 #include <linux/time.h>
  32 #include <linux/timex.h>
  33 #include <linux/mc146818rtc.h>
  34
  35 #include <asm/mipsregs.h>
  36 #include <asm/ptrace.h>
  37 #include <asm/hardirq.h>
  38 #include <asm/irq.h>
  39 #include <asm/div64.h>
  40 #include <asm/cpu.h>
  41 #include <asm/time.h>
  42 #include <asm/mc146818-time.h>
  43 #include <asm/msc01_ic.h>
  44
  45 #include <asm/mips-boards/generic.h>
  46 #include <asm/mips-boards/prom.h>
  47 #include <asm/mips-boards/maltaint.h>
  48 #include <asm/mc146818-time.h>
  49 #include <asm/ar7/ar7.h>
  50
  51 void __init ar7_time_init(void)
  52 {
  53         mips_hpt_frequency = ar7_cpu_freq() / 2;
  54 }
  55
  56 void __init plat_timer_setup(struct irqaction *irq)
  57 {
  58         setup_irq(7, irq);
  59 }