diff options
Diffstat (limited to 'target/linux/aruba-2.6/files/arch/mips/aruba/time.c')
| -rw-r--r-- | target/linux/aruba-2.6/files/arch/mips/aruba/time.c | 110 |
1 files changed, 0 insertions, 110 deletions
diff --git a/target/linux/aruba-2.6/files/arch/mips/aruba/time.c b/target/linux/aruba-2.6/files/arch/mips/aruba/time.c deleted file mode 100644 index 3c63816316..0000000000 --- a/target/linux/aruba-2.6/files/arch/mips/aruba/time.c +++ /dev/null @@ -1,110 +0,0 @@ -/************************************************************************** - * - * BRIEF MODULE DESCRIPTION - * timer routines for IDT EB434 boards - * - * Copyright 2004 IDT Inc. (rischelp@idt.com) - * - * 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 SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN - * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF - * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON - * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF - * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - * 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., - * 675 Mass Ave, Cambridge, MA 02139, USA. - * - * - ************************************************************************** - * May 2004 rkt, neb - * - * Initial Release - * - * - * - ************************************************************************** - */ - -#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 <linux/param.h> -#include <asm/mipsregs.h> -#include <asm/ptrace.h> -#include <asm/time.h> -#include <asm/hardirq.h> - -#include <asm/mipsregs.h> -#include <asm/ptrace.h> -#include <asm/debug.h> -#include <asm/time.h> - -#include <asm/idt-boards/rc32434/rc32434.h> - -static unsigned long r4k_offset; /* Amount to incr compare reg each time */ -static unsigned long r4k_cur; /* What counter should be at next timer irq */ - -extern unsigned int idt_cpu_freq; - -static unsigned long __init cal_r4koff(void) -{ - mips_hpt_frequency = idt_cpu_freq * IDT_CLOCK_MULT / 2; - return (mips_hpt_frequency / HZ); -} - -void __init aruba_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); - -} - -void __init plat_timer_setup(struct irqaction *irq) -{ - /* we are using the cpu counter for timer interrupts */ - setup_irq(MIPS_CPU_TIMER_IRQ, irq); - - /* to generate the first timer interrupt */ - r4k_cur = (read_c0_count() + r4k_offset); - write_c0_compare(r4k_cur); - -} - -asmlinkage void aruba_timer_interrupt(struct pt_regs *regs) -{ - int irq = MIPS_CPU_TIMER_IRQ; - - irq_enter(); - kstat_this_cpu.irqs[irq]++; - - timer_interrupt(irq, NULL); - irq_exit(); -} |