[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>

2 files changed, 10 insertions, 17 deletions

diff --git a/arch/arm/plat-mxc/include/mach/common.h b/arch/arm/plat-mxc/include/mach/common.h
index 6350287a59b9..2c08b8e14e39 100644
--- a/arch/arm/plat-mxc/include/mach/common.h
+++ b/arch/arm/plat-mxc/include/mach/common.h
@@ -12,11 +12,14 @@
 #define __ASM_ARCH_MXC_COMMON_H__
 
 struct platform_device;
+struct clk;
 
 extern void mxc_map_io(void);
 extern void mxc_init_irq(void);
-extern void mxc_timer_init(const char *clk_timer);
-extern int mxc_clocks_init(unsigned long fref);
+extern void mxc_timer_init(struct clk *timer_clk);
+extern int mx1_clocks_init(unsigned long fref);
+extern int mx27_clocks_init(unsigned long fref);
+extern int mx31_clocks_init(unsigned long fref);
 extern int mxc_register_gpios(void);
 extern int mxc_register_device(struct platform_device *pdev, void *data);
 
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);
 }
-