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| author | Andrew Bresticker <abrestic@chromium.org> | 2014-10-20 12:03:48 -0700 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2014-11-24 07:44:57 +0100 |
| commit | 7d9ad5d8c3639113765a3a0ad78c18a736d9f494 (patch) | |
| tree | a0d2cfa7058232cf750ce95188d7704c2a18f6fc /arch/mips/mti-malta | |
| parent | a393d93059664f73d897d2a7e0c1ed85bf372954 (diff) | |
| download | blackbird-op-linux-7d9ad5d8c3639113765a3a0ad78c18a736d9f494.tar.gz blackbird-op-linux-7d9ad5d8c3639113765a3a0ad78c18a736d9f494.zip | |
MIPS: Malta: Use gic_read_count() to read GIC timer
Instead of reading the GIC registers directly, use the interface the GIC
driver already exposes for reading the global timer. Also get rid of
the unnecessary #ifdefs.
Signed-off-by: Andrew Bresticker <abrestic@chromium.org>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Paul Burton <paul.burton@imgtec.com>
Cc: Qais Yousef <qais.yousef@imgtec.com>
Cc: John Crispin <blogic@openwrt.org>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/8123/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/mti-malta')
| -rw-r--r-- | arch/mips/mti-malta/malta-time.c | 14 |
1 files changed, 3 insertions, 11 deletions
diff --git a/arch/mips/mti-malta/malta-time.c b/arch/mips/mti-malta/malta-time.c index f6ca8ea4d992..39f3902ed341 100644 --- a/arch/mips/mti-malta/malta-time.c +++ b/arch/mips/mti-malta/malta-time.c @@ -70,9 +70,7 @@ static void __init estimate_frequencies(void) { unsigned long flags; unsigned int count, start; -#ifdef CONFIG_MIPS_GIC - unsigned int giccount = 0, gicstart = 0; -#endif + cycle_t giccount = 0, gicstart = 0; #if defined(CONFIG_KVM_GUEST) && CONFIG_KVM_GUEST_TIMER_FREQ mips_hpt_frequency = CONFIG_KVM_GUEST_TIMER_FREQ * 1000000; @@ -87,32 +85,26 @@ static void __init estimate_frequencies(void) /* Initialize counters. */ start = read_c0_count(); -#ifdef CONFIG_MIPS_GIC if (gic_present) - GICREAD(GIC_REG(SHARED, GIC_SH_COUNTER_31_00), gicstart); -#endif + gicstart = gic_read_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(); -#ifdef CONFIG_MIPS_GIC if (gic_present) - GICREAD(GIC_REG(SHARED, GIC_SH_COUNTER_31_00), giccount); -#endif + giccount = gic_read_count(); local_irq_restore(flags); count -= start; mips_hpt_frequency = count; -#ifdef CONFIG_MIPS_GIC if (gic_present) { giccount -= gicstart; gic_frequency = giccount; } -#endif } void read_persistent_clock(struct timespec *ts) |
