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-rw-r--r--arch/mips/mips-boards/generic/time.c186
1 files changed, 0 insertions, 186 deletions
diff --git a/arch/mips/mips-boards/generic/time.c b/arch/mips/mips-boards/generic/time.c
deleted file mode 100644
index fe2cac1b451..00000000000
--- a/arch/mips/mips-boards/generic/time.c
+++ /dev/null
@@ -1,186 +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.
- */
-
-#include <linux/types.h>
-#include <linux/init.h>
-#include <linux/kernel_stat.h>
-#include <linux/sched.h>
-#include <linux/spinlock.h>
-#include <linux/interrupt.h>
-#include <linux/time.h>
-#include <linux/timex.h>
-#include <linux/mc146818rtc.h>
-
-#include <asm/mipsregs.h>
-#include <asm/mipsmtregs.h>
-#include <asm/hardirq.h>
-#include <asm/i8253.h>
-#include <asm/irq.h>
-#include <asm/div64.h>
-#include <asm/cpu.h>
-#include <asm/time.h>
-#include <asm/mc146818-time.h>
-#include <asm/msc01_ic.h>
-
-#include <asm/mips-boards/generic.h>
-#include <asm/mips-boards/prom.h>
-
-#ifdef CONFIG_MIPS_ATLAS
-#include <asm/mips-boards/atlasint.h>
-#endif
-#ifdef CONFIG_MIPS_MALTA
-#include <asm/mips-boards/maltaint.h>
-#endif
-#ifdef CONFIG_MIPS_SEAD
-#include <asm/mips-boards/seadint.h>
-#endif
-
-unsigned long cpu_khz;
-
-static int mips_cpu_timer_irq;
-static int mips_cpu_perf_irq;
-extern int cp0_perfcount_irq;
-
-static void mips_timer_dispatch(void)
-{
- do_IRQ(mips_cpu_timer_irq);
-}
-
-static void mips_perf_dispatch(void)
-{
- do_IRQ(mips_cpu_perf_irq);
-}
-
-/*
- * Estimate CPU frequency. Sets mips_hpt_frequency as a side-effect
- */
-static unsigned int __init estimate_cpu_frequency(void)
-{
- unsigned int prid = read_c0_prid() & 0xffff00;
- unsigned int count;
-
-#if defined(CONFIG_MIPS_SEAD) || defined(CONFIG_MIPS_SIM)
- /*
- * The SEAD board doesn't have a real time clock, so we can't
- * really calculate the timer frequency
- * For now we hardwire the SEAD board frequency to 12MHz.
- */
-
- if ((prid == (PRID_COMP_MIPS | PRID_IMP_20KC)) ||
- (prid == (PRID_COMP_MIPS | PRID_IMP_25KF)))
- count = 12000000;
- else
- count = 6000000;
-#endif
-#if defined(CONFIG_MIPS_ATLAS) || defined(CONFIG_MIPS_MALTA)
- unsigned long flags;
- unsigned int start;
-
- local_irq_save(flags);
-
- /* Start counter exactly on falling edge of update flag */
- while (CMOS_READ(RTC_REG_A) & RTC_UIP);
- while (!(CMOS_READ(RTC_REG_A) & RTC_UIP));
-
- /* Start r4k counter. */
- start = read_c0_count();
-
- /* Read counter exactly on falling edge of update flag */
- while (CMOS_READ(RTC_REG_A) & RTC_UIP);
- while (!(CMOS_READ(RTC_REG_A) & RTC_UIP));
-
- count = read_c0_count() - start;
-
- /* restore interrupts */
- local_irq_restore(flags);
-#endif
-
- mips_hpt_frequency = count;
- if ((prid != (PRID_COMP_MIPS | PRID_IMP_20KC)) &&
- (prid != (PRID_COMP_MIPS | PRID_IMP_25KF)))
- count *= 2;
-
- count += 5000; /* round */
- count -= count%10000;
-
- return count;
-}
-
-unsigned long read_persistent_clock(void)
-{
- return mc146818_get_cmos_time();
-}
-
-static void __init plat_perf_setup(void)
-{
-#ifdef MSC01E_INT_BASE
- if (cpu_has_veic) {
- set_vi_handler(MSC01E_INT_PERFCTR, mips_perf_dispatch);
- mips_cpu_perf_irq = MSC01E_INT_BASE + MSC01E_INT_PERFCTR;
- } else
-#endif
- if (cp0_perfcount_irq >= 0) {
- if (cpu_has_vint)
- set_vi_handler(cp0_perfcount_irq, mips_perf_dispatch);
- mips_cpu_perf_irq = MIPS_CPU_IRQ_BASE + cp0_perfcount_irq;
-#ifdef CONFIG_SMP
- set_irq_handler(mips_cpu_perf_irq, handle_percpu_irq);
-#endif
- }
-}
-
-unsigned int __cpuinit get_c0_compare_int(void)
-{
-#ifdef MSC01E_INT_BASE
- if (cpu_has_veic) {
- set_vi_handler(MSC01E_INT_CPUCTR, mips_timer_dispatch);
- mips_cpu_timer_irq = MSC01E_INT_BASE + MSC01E_INT_CPUCTR;
- } else
-#endif
- {
- if (cpu_has_vint)
- set_vi_handler(cp0_compare_irq, mips_timer_dispatch);
- mips_cpu_timer_irq = MIPS_CPU_IRQ_BASE + cp0_compare_irq;
- }
-
- return mips_cpu_timer_irq;
-}
-
-void __init plat_time_init(void)
-{
- unsigned int est_freq;
-
- /* Set Data mode - binary. */
- CMOS_WRITE(CMOS_READ(RTC_CONTROL) | RTC_DM_BINARY, RTC_CONTROL);
-
- est_freq = estimate_cpu_frequency();
-
- printk("CPU frequency %d.%02d MHz\n", est_freq/1000000,
- (est_freq%1000000)*100/1000000);
-
- cpu_khz = est_freq / 1000;
-
- mips_scroll_message();
-#ifdef CONFIG_I8253 /* Only Malta has a PIT */
- setup_pit_timer();
-#endif
-
- plat_perf_setup();
-}