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clocksource: convert ARM 32-bit up counting clocksources

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Convert ixp4xx, lpc32xx, mxc, netx, pxa, sa1100, tcc8k, tegra and u300
to use the generic mmio clocksource recently introduced.

Cc: Imre Kaloz <kaloz@openwrt.org>
Cc: Krzysztof Halasa <khc@pm.waw.pl>
Acked-by: Eric Miao <eric.y.miao@gmail.com>
Acked-by: "Hans J. Koch" <hjk@hansjkoch.de>
Acked-by: Colin Cross <ccross@android.com>
Cc: Erik Gilling <konkers@android.com>
Cc: Olof Johansson <olof@lixom.net>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King
2011-05-08 14:09:47 +01:00
parent 442c8176d2
commit 234b6ceddb
10 changed files with 34 additions and 145 deletions
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16
arch/arm/mach-netx/time.c
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@@ -104,19 +104,6 @@ static struct irqaction netx_timer_irq = {
.handler = netx_timer_interrupt,
};
cycle_t netx_get_cycles(struct clocksource *cs)
{
return readl(NETX_GPIO_COUNTER_CURRENT(TIMER_CLOCKSOURCE));
}
static struct clocksource clocksource_netx = {
.name = "netx_timer",
.rating = 200,
.read = netx_get_cycles,
.mask = CLOCKSOURCE_MASK(32),
.flags = CLOCK_SOURCE_IS_CONTINUOUS,
};
/*
* Set up timer interrupt
*/
@@ -150,7 +137,8 @@ static void __init netx_timer_init(void)
writel(NETX_GPIO_COUNTER_CTRL_RUN,
NETX_GPIO_COUNTER_CTRL(TIMER_CLOCKSOURCE));
clocksource_register_hz(&clocksource_netx, CLOCK_TICK_RATE);
clocksource_mmio_init(NETX_GPIO_COUNTER_CURRENT(TIMER_CLOCKSOURCE),
"netx_timer", CLOCK_TICK_RATE, 200, 32, clocksource_mmio_readl_up);
netx_clockevent.mult = div_sc(CLOCK_TICK_RATE, NSEC_PER_SEC,
netx_clockevent.shift);