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adm5120 timing specific routines, was part of the IRQ handling rewritte

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SVN-Revision: 7475
This commit is contained in:
Florian Fainelli 2007-06-03 08:52:16 +00:00
parent 3b6b7a2d1b
commit 12591bd002
1 changed files with 54 additions and 0 deletions
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target/linux/adm5120-2.6/files/arch/mips/adm5120/time.c Normal file
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/*
* $Id$
*
* ADM5120 specific hooks for MIPS CPU Counter/Compare timer
*
* Copyright (C) 2007 OpenWrt.org
* Copyright (C) 2007 Gabor Juhos <juhosg@freemail.hu>
*
* This file was based on: arch/mips/gt64120/wrppmc/time.c
* Original author: Mark.Zhan
* Copyright (C) 1996, 1997, 2004 by Ralf Baechle
* Copyright (C) 2006, Wind River System Inc.
*
* 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., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
#include <linux/types.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/timex.h>
#include <asm/irq.h>
#include <asm/cpu.h>
#include <asm/time.h>
#include <asm/mach-adm5120/adm5120_info.h>
#include <asm/mach-adm5120/adm5120_irq.h>
void __init adm5120_time_init(void)
{
mips_hpt_frequency = adm5120_speed / 2;
}
void __init plat_timer_setup(struct irqaction *irq)
{
clear_c0_status(ST0_BEV);
/* Install ISR for CPU Counter interrupt */
setup_irq(ADM5120_IRQ_COUNTER, irq);
}