diff options
Diffstat (limited to 'arch/mips/mti-malta/malta-time.c')
| -rw-r--r-- | arch/mips/mti-malta/malta-time.c | 37 |
1 files changed, 24 insertions, 13 deletions
diff --git a/arch/mips/mti-malta/malta-time.c b/arch/mips/mti-malta/malta-time.c index 381ad062f192..79e5169eabd3 100644 --- a/arch/mips/mti-malta/malta-time.c +++ b/arch/mips/mti-malta/malta-time.c @@ -71,7 +71,9 @@ static void __init estimate_frequencies(void) { unsigned long flags; unsigned int count, start; +#ifdef CONFIG_IRQ_GIC unsigned int giccount = 0, gicstart = 0; +#endif local_irq_save(flags); @@ -81,26 +83,32 @@ static void __init estimate_frequencies(void) /* Initialize counters. */ start = read_c0_count(); +#ifdef CONFIG_IRQ_GIC if (gic_present) GICREAD(GIC_REG(SHARED, GIC_SH_COUNTER_31_00), gicstart); +#endif /* 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(); +#ifdef CONFIG_IRQ_GIC if (gic_present) GICREAD(GIC_REG(SHARED, GIC_SH_COUNTER_31_00), giccount); +#endif local_irq_restore(flags); count -= start; - if (gic_present) - giccount -= gicstart; - mips_hpt_frequency = count; - if (gic_present) + +#ifdef CONFIG_IRQ_GIC + if (gic_present) { + giccount -= gicstart; gic_frequency = giccount; + } +#endif } void read_persistent_clock(struct timespec *ts) @@ -156,24 +164,27 @@ void __init plat_time_init(void) (prid != (PRID_COMP_MIPS | PRID_IMP_25KF))) freq *= 2; freq = freqround(freq, 5000); - pr_debug("CPU frequency %d.%02d MHz\n", freq/1000000, + printk("CPU frequency %d.%02d MHz\n", freq/1000000, (freq%1000000)*100/1000000); cpu_khz = freq / 1000; - if (gic_present) { - freq = freqround(gic_frequency, 5000); - pr_debug("GIC frequency %d.%02d MHz\n", freq/1000000, - (freq%1000000)*100/1000000); - gic_clocksource_init(gic_frequency); - } else - init_r4k_clocksource(); + mips_scroll_message(); #ifdef CONFIG_I8253 /* Only Malta has a PIT. */ setup_pit_timer(); #endif - mips_scroll_message(); +#ifdef CONFIG_IRQ_GIC + if (gic_present) { + freq = freqround(gic_frequency, 5000); + printk("GIC frequency %d.%02d MHz\n", freq/1000000, + (freq%1000000)*100/1000000); +#ifdef CONFIG_CSRC_GIC + gic_clocksource_init(gic_frequency); +#endif + } +#endif plat_perf_setup(); } |