[ARM] MXC: rework timer/clock initialisation

- rename mxc_clocks_init to architecture specific versions. This
  allows us to have more than one architecture compiled in.
- call mxc_timer_init from clock initialisation instead from board
  code

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

1 files changed, 5 insertions, 15 deletions

diff --git a/arch/arm/plat-mxc/time.c b/arch/arm/plat-mxc/time.c
index 758a1293bcfa..eb93fd1789db 100644
--- a/arch/arm/plat-mxc/time.c
+++ b/arch/arm/plat-mxc/time.c
@@ -34,9 +34,6 @@
 static struct clock_event_device clockevent_mxc;
 static enum clock_event_mode clockevent_mode = CLOCK_EVT_MODE_UNUSED;
 
-/* clock source for the timer */
-static struct clk *timer_clk;
-
 /* clock source */
 
 static cycle_t mxc_get_cycles(void)
@@ -53,7 +50,7 @@ static struct clocksource clocksource_mxc = {
 	.flags		= CLOCK_SOURCE_IS_CONTINUOUS,
 };
 
-static int __init mxc_clocksource_init(void)
+static int __init mxc_clocksource_init(struct clk *timer_clk)
 {
 	unsigned int clock;
 
@@ -177,7 +174,7 @@ static struct clock_event_device clockevent_mxc = {
 	.rating		= 200,
 };
 
-static int __init mxc_clockevent_init(void)
+static int __init mxc_clockevent_init(struct clk *timer_clk)
 {
 	unsigned int clock;
 
@@ -197,14 +194,8 @@ static int __init mxc_clockevent_init(void)
 	return 0;
 }
 
-void __init mxc_timer_init(const char *clk_timer)
+void __init mxc_timer_init(struct clk *timer_clk)
 {
-	timer_clk = clk_get(NULL, clk_timer);
-	if (!timer_clk) {
-		printk(KERN_ERR"Cannot determine timer clock. Giving up.\n");
-		return;
-	}
-
 	clk_enable(timer_clk);
 
 	/*
@@ -219,10 +210,9 @@ void __init mxc_timer_init(const char *clk_timer)
 		     TIMER_BASE + MXC_TCTL);
 
 	/* init and register the timer to the framework */
-	mxc_clocksource_init();
-	mxc_clockevent_init();
+	mxc_clocksource_init(timer_clk);
+	mxc_clockevent_init(timer_clk);
 
 	/* Make irqs happen */
 	setup_irq(TIMER_INTERRUPT, &mxc_timer_irq);
 }
-