clocksource: sun4i: Remove TIMER_SCAL variable
The prescaler is only used when using the internal low frequency oscillator (at 32kHz). Since we're using the higher frequency oscillator at 24MHz, we can just remove it. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
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@ -34,8 +34,6 @@
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#define TIMER_INTVAL_REG(val) (0x10 * (val) + 0x14)
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#define TIMER_CNTVAL_REG(val) (0x10 * (val) + 0x18)
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#define TIMER_SCAL 16
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static void __iomem *timer_base;
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/*
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@ -168,8 +166,7 @@ static void __init sun4i_timer_init(struct device_node *node)
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clocksource_mmio_init(timer_base + TIMER_CNTVAL_REG(1), node->name,
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rate, 300, 32, clocksource_mmio_readl_down);
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writel(rate / (TIMER_SCAL * HZ),
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timer_base + TIMER_INTVAL_REG(0));
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writel(rate / HZ, timer_base + TIMER_INTVAL_REG(0));
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/* set clock source to HOSC, 16 pre-division */
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val = readl(timer_base + TIMER_CTL_REG(0));
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@ -192,8 +189,8 @@ static void __init sun4i_timer_init(struct device_node *node)
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sun4i_clockevent.cpumask = cpumask_of(0);
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clockevents_config_and_register(&sun4i_clockevent, rate / TIMER_SCAL,
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0x1, 0xff);
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clockevents_config_and_register(&sun4i_clockevent, rate, 0x1,
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0xffffffff);
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}
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CLOCKSOURCE_OF_DECLARE(sun4i, "allwinner,sun4i-timer",
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sun4i_timer_init);
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