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authorRussell King <rmk+kernel@arm.linux.org.uk>2011-05-08 15:33:30 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2011-05-23 18:04:51 +0100
commitbfe45e0be88d8a2e408226d473bff60da4a97d1f (patch)
tree4586e8933a35af1599f314adb73f2bae504b49b5 /arch/arm/plat-orion/time.c
parent234b6ceddb4fc2a4bc5b9a7670f070f6e69e0868 (diff)
clocksource: convert ARM 32-bit down counting clocksources
Convert SP804, MXC, Nomadik and Orion 32-bit down-counting clocksources to generic mmio clocksource infrastructure. Acked-by: Catalin Marinas <catalin.marinas@arm.com> Cc: Sascha Hauer <kernel@pengutronix.de> Cc: Alessandro Rubini <rubini@unipv.it> Acked-by: Linus Walleij <linus.walleij@linaro.org> Cc: Lennert Buytenhek <kernel@wantstofly.org> Acked-by: Nicolas Pitre <nico@fluxnic.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/plat-orion/time.c')
-rw-r--r--arch/arm/plat-orion/time.c21
1 files changed, 2 insertions, 19 deletions
diff --git a/arch/arm/plat-orion/time.c b/arch/arm/plat-orion/time.c
index 742b0323c57b..69a61367e4b8 100644
--- a/arch/arm/plat-orion/time.c
+++ b/arch/arm/plat-orion/time.c
@@ -81,24 +81,6 @@ static void __init setup_sched_clock(unsigned long tclk)
}
/*
- * Clocksource handling.
- */
-static cycle_t orion_clksrc_read(struct clocksource *cs)
-{
- return 0xffffffff - readl(timer_base + TIMER0_VAL_OFF);
-}
-
-static struct clocksource orion_clksrc = {
- .name = "orion_clocksource",
- .rating = 300,
- .read = orion_clksrc_read,
- .mask = CLOCKSOURCE_MASK(32),
- .flags = CLOCK_SOURCE_IS_CONTINUOUS,
-};
-
-
-
-/*
* Clockevent handling.
*/
static int
@@ -247,7 +229,8 @@ orion_time_init(u32 _bridge_base, u32 _bridge_timer1_clr_mask,
writel(u & ~BRIDGE_INT_TIMER0, bridge_base + BRIDGE_MASK_OFF);
u = readl(timer_base + TIMER_CTRL_OFF);
writel(u | TIMER0_EN | TIMER0_RELOAD_EN, timer_base + TIMER_CTRL_OFF);
- clocksource_register_hz(&orion_clksrc, tclk);
+ clocksource_mmio_init(timer_base + TIMER0_VAL_OFF, "orion_clocksource",
+ tclk, 300, 32, clocksource_mmio_readl_down);
/*
* Setup clockevent timer (interrupt-driven).