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-rw-r--r--drivers/clocksource/sun4i_timer.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/clocksource/sun4i_timer.c b/drivers/clocksource/sun4i_timer.c
index 2fadb3ba59db..8ead0258740a 100644
--- a/drivers/clocksource/sun4i_timer.c
+++ b/drivers/clocksource/sun4i_timer.c
@@ -38,6 +38,7 @@
38#define TIMER_CNTVAL_REG(val) (0x10 * (val) + 0x18) 38#define TIMER_CNTVAL_REG(val) (0x10 * (val) + 0x18)
39 39
40static void __iomem *timer_base; 40static void __iomem *timer_base;
41static u32 ticks_per_jiffy;
41 42
42/* 43/*
43 * When we disable a timer, we need to wait at least for 2 cycles of 44 * When we disable a timer, we need to wait at least for 2 cycles of
@@ -74,7 +75,8 @@ static void sun4i_clkevt_time_start(u8 timer, bool periodic)
74 else 75 else
75 val |= TIMER_CTL_ONESHOT; 76 val |= TIMER_CTL_ONESHOT;
76 77
77 writel(val | TIMER_CTL_ENABLE, timer_base + TIMER_CTL_REG(timer)); 78 writel(val | TIMER_CTL_ENABLE | TIMER_CTL_RELOAD,
79 timer_base + TIMER_CTL_REG(timer));
78} 80}
79 81
80static void sun4i_clkevt_mode(enum clock_event_mode mode, 82static void sun4i_clkevt_mode(enum clock_event_mode mode,
@@ -83,6 +85,7 @@ static void sun4i_clkevt_mode(enum clock_event_mode mode,
83 switch (mode) { 85 switch (mode) {
84 case CLOCK_EVT_MODE_PERIODIC: 86 case CLOCK_EVT_MODE_PERIODIC:
85 sun4i_clkevt_time_stop(0); 87 sun4i_clkevt_time_stop(0);
88 sun4i_clkevt_time_setup(0, ticks_per_jiffy);
86 sun4i_clkevt_time_start(0, true); 89 sun4i_clkevt_time_start(0, true);
87 break; 90 break;
88 case CLOCK_EVT_MODE_ONESHOT: 91 case CLOCK_EVT_MODE_ONESHOT:
@@ -169,9 +172,9 @@ static void __init sun4i_timer_init(struct device_node *node)
169 clocksource_mmio_init(timer_base + TIMER_CNTVAL_REG(1), node->name, 172 clocksource_mmio_init(timer_base + TIMER_CNTVAL_REG(1), node->name,
170 rate, 300, 32, clocksource_mmio_readl_down); 173 rate, 300, 32, clocksource_mmio_readl_down);
171 174
172 writel(rate / HZ, timer_base + TIMER_INTVAL_REG(0)); 175 ticks_per_jiffy = DIV_ROUND_UP(rate, HZ);
173 176
174 writel(TIMER_CTL_CLK_SRC(TIMER_CTL_CLK_SRC_OSC24M) | TIMER_CTL_RELOAD, 177 writel(TIMER_CTL_CLK_SRC(TIMER_CTL_CLK_SRC_OSC24M),
175 timer_base + TIMER_CTL_REG(0)); 178 timer_base + TIMER_CTL_REG(0));
176 179
177 ret = setup_irq(irq, &sun4i_timer_irq); 180 ret = setup_irq(irq, &sun4i_timer_irq);