diff options
Diffstat (limited to 'target/linux/rb532/files-2.6.24/arch/mips/rb500/time.c')
| -rw-r--r-- | target/linux/rb532/files-2.6.24/arch/mips/rb500/time.c | 82 | 
1 files changed, 0 insertions, 82 deletions
diff --git a/target/linux/rb532/files-2.6.24/arch/mips/rb500/time.c b/target/linux/rb532/files-2.6.24/arch/mips/rb500/time.c deleted file mode 100644 index db8584906..000000000 --- a/target/linux/rb532/files-2.6.24/arch/mips/rb500/time.c +++ /dev/null @@ -1,82 +0,0 @@ -/* -**************************************************************************** -* Carsten Langgaard, carstenl@mips.com -* Copyright (C) 1999,2000 MIPS Technologies, Inc.  All rights reserved. -* -*************************************************************************** -* -*  This program is free software; you can distribute it and/or modify it -*  under the terms of the GNU General Public License (Version 2) as -*  published by the Free Software Foundation. -* -*  This program is distributed in the hope 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. -* -**************************************************************************** -* -* Setting up the clock on the MIPS boards. -* -**************************************************************************** -* P. Sadik Oct 10, 2003 -* -* Started change log. -* mips_counter_frequency is now calculated at run time, based on idt_cpu_freq. -* Code cleanup -**************************************************************************** -*/ - -#include <linux/autoconf.h> -#include <linux/init.h> -#include <linux/kernel_stat.h> -#include <linux/sched.h> -#include <linux/spinlock.h> -#include <linux/mc146818rtc.h> -#include <linux/irq.h> -#include <linux/timex.h> - -#include <asm/irq_cpu.h> -#include <asm/mipsregs.h> -#include <asm/ptrace.h> -#include <asm/debug.h> -#include <asm/rc32434/rc32434.h> - -static unsigned long r4k_offset; /* Amount to incr compare reg each time */ -extern unsigned int mips_hpt_frequency; -extern unsigned int idt_cpu_freq; - -/*  - * Figure out the r4k offset, the amount to increment the compare - * register for each time tick. There is no RTC available. - * - * The RC32434 counts at half the CPU *core* speed. - */ -static unsigned long __init cal_r4koff(void) -{ -	mips_hpt_frequency = idt_cpu_freq * IDT_CLOCK_MULT / 2; -	return (mips_hpt_frequency / HZ); -} - - -void __init plat_time_init(void) -{ -	unsigned int est_freq, flags; - -	local_irq_save(flags); - -	printk("calculating r4koff... "); -	r4k_offset = cal_r4koff(); -	printk("%08lx(%d)\n", r4k_offset, (int) r4k_offset); - -	est_freq = 2*r4k_offset*HZ;	 -	est_freq += 5000;	/* round */ -	est_freq -= est_freq%10000; -	printk("CPU frequency %d.%02d MHz\n", est_freq/1000000,  -	       (est_freq%1000000)*100/1000000); -	local_irq_restore(flags); -}  | 
