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author | Russell King <rmk+kernel@arm.linux.org.uk> | 2011-05-08 15:35:22 +0100 |
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committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2011-05-23 18:04:52 +0100 |
commit | c5039f52329ff796d7fea9024e5615abee02dbfb (patch) | |
tree | 2434fede52e85f2a2315cfce76600fa777d98715 /arch/arm/mach-integrator/integrator_ap.c | |
parent | 6fa5d5f764469daf3c4d21f94cbc1839b3857bbd (diff) | |
download | linux-c5039f52329ff796d7fea9024e5615abee02dbfb.tar.gz linux-c5039f52329ff796d7fea9024e5615abee02dbfb.tar.bz2 linux-c5039f52329ff796d7fea9024e5615abee02dbfb.zip |
clocksource: convert Integrator/AP 16-bit down counting clocksource
Convert the Integrator/AP 16-bit down-counting clocksource to the
generic clocksource infrastructure.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mach-integrator/integrator_ap.c')
-rw-r--r-- | arch/arm/mach-integrator/integrator_ap.c | 21 |
1 files changed, 3 insertions, 18 deletions
diff --git a/arch/arm/mach-integrator/integrator_ap.c b/arch/arm/mach-integrator/integrator_ap.c index d3e96451529c..6b151288f66c 100644 --- a/arch/arm/mach-integrator/integrator_ap.c +++ b/arch/arm/mach-integrator/integrator_ap.c @@ -335,25 +335,9 @@ static void __init ap_init(void) static unsigned long timer_reload; -static void __iomem * const clksrc_base = (void __iomem *)TIMER2_VA_BASE; - -static cycle_t timersp_read(struct clocksource *cs) -{ - return ~(readl(clksrc_base + TIMER_VALUE) & 0xffff); -} - -static struct clocksource clocksource_timersp = { - .name = "timer2", - .rating = 200, - .read = timersp_read, - .mask = CLOCKSOURCE_MASK(16), - .flags = CLOCK_SOURCE_IS_CONTINUOUS, -}; - static void integrator_clocksource_init(u32 khz) { - struct clocksource *cs = &clocksource_timersp; - void __iomem *base = clksrc_base; + void __iomem *base = (void __iomem *)TIMER2_VA_BASE; u32 ctrl = TIMER_CTRL_ENABLE; if (khz >= 1500) { @@ -364,7 +348,8 @@ static void integrator_clocksource_init(u32 khz) writel(ctrl, base + TIMER_CTRL); writel(0xffff, base + TIMER_LOAD); - clocksource_register_khz(cs, khz); + clocksource_mmio_init(base + TIMER_VALUE, "timer2", + khz * 1000, 200, 16, clocksource_mmio_readl_down); } static void __iomem * const clkevt_base = (void __iomem *)TIMER1_VA_BASE; |