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authorSascha Hauer <s.hauer@pengutronix.de>2009-02-16 14:36:49 +0100
committerSascha Hauer <s.hauer@pengutronix.de>2009-03-13 10:33:47 +0100
commit30c730f8f90b08d77a73998d2ee34cf1f56e95cc (patch)
tree4b73291db523a77d2ca36a65ba7e0d1a8ff6e56e
parenta2865197a5dad23c619c84f44b7fdf7fdbef3f9c (diff)
[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>
-rw-r--r--arch/arm/mach-mx1/clock.c5
-rw-r--r--arch/arm/mach-mx1/mx1ads.c3
-rw-r--r--arch/arm/mach-mx2/clock_imx27.c5
-rw-r--r--arch/arm/mach-mx2/mx27ads.c3
-rw-r--r--arch/arm/mach-mx2/pcm038.c3
-rw-r--r--arch/arm/mach-mx3/clock.c5
-rw-r--r--arch/arm/mach-mx3/mx31ads.c3
-rw-r--r--arch/arm/mach-mx3/mx31lite.c3
-rw-r--r--arch/arm/mach-mx3/mx31moboard.c3
-rw-r--r--arch/arm/mach-mx3/mx31pdk.c3
-rw-r--r--arch/arm/mach-mx3/pcm037.c3
-rw-r--r--arch/arm/plat-mxc/include/mach/common.h7
-rw-r--r--arch/arm/plat-mxc/time.c20
13 files changed, 30 insertions, 36 deletions
diff --git a/arch/arm/mach-mx1/clock.c b/arch/arm/mach-mx1/clock.c
index 3c464331b870..40a2274380a3 100644
--- a/arch/arm/mach-mx1/clock.c
+++ b/arch/arm/mach-mx1/clock.c
@@ -25,6 +25,7 @@
#include <mach/clock.h>
#include <mach/hardware.h>
+#include <mach/common.h>
#include "crm_regs.h"
static int _clk_enable(struct clk *clk)
@@ -594,7 +595,7 @@ static struct clk *mxc_clks[] = {
&rtc_clk,
};
-int __init mxc_clocks_init(unsigned long fref)
+int __init mx1_clocks_init(unsigned long fref)
{
struct clk **clkp;
unsigned int reg;
@@ -625,5 +626,7 @@ int __init mxc_clocks_init(unsigned long fref)
clk_enable(&hclk);
clk_enable(&fclk);
+ mxc_timer_init(&gpt_clk);
+
return 0;
}
diff --git a/arch/arm/mach-mx1/mx1ads.c b/arch/arm/mach-mx1/mx1ads.c
index be7dd75ebbe1..09dc77bb4812 100644
--- a/arch/arm/mach-mx1/mx1ads.c
+++ b/arch/arm/mach-mx1/mx1ads.c
@@ -118,8 +118,7 @@ static void __init mx1ads_init(void)
static void __init mx1ads_timer_init(void)
{
- mxc_clocks_init(32000);
- mxc_timer_init("gpt_clk");
+ mx1_clocks_init(32000);
}
struct sys_timer mx1ads_timer = {
diff --git a/arch/arm/mach-mx2/clock_imx27.c b/arch/arm/mach-mx2/clock_imx27.c
index 047e71e6ea9a..7b2c1122d9ab 100644
--- a/arch/arm/mach-mx2/clock_imx27.c
+++ b/arch/arm/mach-mx2/clock_imx27.c
@@ -1551,7 +1551,7 @@ static void __init probe_mxc_clocks(void)
* must be called very early to get information about the
* available clock rate when the timer framework starts
*/
-int __init mxc_clocks_init(unsigned long fref)
+int __init mx27_clocks_init(unsigned long fref)
{
u32 cscr;
struct clk **clkp;
@@ -1593,5 +1593,8 @@ int __init mxc_clocks_init(unsigned long fref)
#ifdef CONFIG_DEBUG_LL_CONSOLE
clk_enable(&uart1_clk[0]);
#endif
+
+ mxc_timer_init(&gpt1_clk[0]);
+
return 0;
}
diff --git a/arch/arm/mach-mx2/mx27ads.c b/arch/arm/mach-mx2/mx27ads.c
index 7721c470d5ab..536bf64bc7c8 100644
--- a/arch/arm/mach-mx2/mx27ads.c
+++ b/arch/arm/mach-mx2/mx27ads.c
@@ -263,8 +263,7 @@ static void __init mx27ads_timer_init(void)
if ((__raw_readw(PBC_VERSION_REG) & CKIH_27MHZ_BIT_SET) == 0)
fref = 27000000;
- mxc_clocks_init(fref);
- mxc_timer_init("gpt_clk.0");
+ mx27_clocks_init(fref);
}
struct sys_timer mx27ads_timer = {
diff --git a/arch/arm/mach-mx2/pcm038.c b/arch/arm/mach-mx2/pcm038.c
index 534fd9a4ff9f..63cdef8565db 100644
--- a/arch/arm/mach-mx2/pcm038.c
+++ b/arch/arm/mach-mx2/pcm038.c
@@ -230,8 +230,7 @@ static void __init pcm038_init(void)
static void __init pcm038_timer_init(void)
{
- mxc_clocks_init(26000000);
- mxc_timer_init("gpt_clk.0");
+ mx27_clocks_init(26000000);
}
struct sys_timer pcm038_timer = {
diff --git a/arch/arm/mach-mx3/clock.c b/arch/arm/mach-mx3/clock.c
index 8486ea46d6c1..8b41facb391b 100644
--- a/arch/arm/mach-mx3/clock.c
+++ b/arch/arm/mach-mx3/clock.c
@@ -25,6 +25,7 @@
#include <linux/io.h>
#include <mach/clock.h>
#include <mach/hardware.h>
+#include <mach/common.h>
#include <asm/div64.h>
#include "crm_regs.h"
@@ -1071,7 +1072,7 @@ static struct clk *mxc_clks[] = {
&iim_clk,
};
-int __init mxc_clocks_init(unsigned long fref)
+int __init mx31_clocks_init(unsigned long fref)
{
u32 reg;
struct clk **clkp;
@@ -1121,6 +1122,8 @@ int __init mxc_clocks_init(unsigned long fref)
__raw_writel(reg, MXC_CCM_PMCR1);
}
+ mxc_timer_init(&ipg_clk);
+
return 0;
}
diff --git a/arch/arm/mach-mx3/mx31ads.c b/arch/arm/mach-mx3/mx31ads.c
index f902a7c37c31..f913999eedf0 100644
--- a/arch/arm/mach-mx3/mx31ads.c
+++ b/arch/arm/mach-mx3/mx31ads.c
@@ -244,8 +244,7 @@ static void __init mxc_board_init(void)
static void __init mx31ads_timer_init(void)
{
- mxc_clocks_init(26000000);
- mxc_timer_init("ipg_clk.0");
+ mx31_clocks_init(26000000);
}
struct sys_timer mx31ads_timer = {
diff --git a/arch/arm/mach-mx3/mx31lite.c b/arch/arm/mach-mx3/mx31lite.c
index c43440070143..e61fad2f60f3 100644
--- a/arch/arm/mach-mx3/mx31lite.c
+++ b/arch/arm/mach-mx3/mx31lite.c
@@ -82,8 +82,7 @@ static void __init mxc_board_init(void)
static void __init mx31lite_timer_init(void)
{
- mxc_clocks_init(26000000);
- mxc_timer_init("ipg_clk.0");
+ mx31_clocks_init(26000000);
}
struct sys_timer mx31lite_timer = {
diff --git a/arch/arm/mach-mx3/mx31moboard.c b/arch/arm/mach-mx3/mx31moboard.c
index c29098af7394..3d2773e4bc81 100644
--- a/arch/arm/mach-mx3/mx31moboard.c
+++ b/arch/arm/mach-mx3/mx31moboard.c
@@ -120,8 +120,7 @@ void __init mx31moboard_map_io(void)
static void __init mx31moboard_timer_init(void)
{
- mxc_clocks_init(26000000);
- mxc_timer_init("ipg_clk.0");
+ mx31_clocks_init(26000000);
}
struct sys_timer mx31moboard_timer = {
diff --git a/arch/arm/mach-mx3/mx31pdk.c b/arch/arm/mach-mx3/mx31pdk.c
index d464d068a4a6..ac427edb4db1 100644
--- a/arch/arm/mach-mx3/mx31pdk.c
+++ b/arch/arm/mach-mx3/mx31pdk.c
@@ -91,8 +91,7 @@ static void __init mxc_board_init(void)
static void __init mx31pdk_timer_init(void)
{
- mxc_clocks_init(26000000);
- mxc_timer_init("ipg_clk.0");
+ mx31_clocks_init(26000000);
}
static struct sys_timer mx31pdk_timer = {
diff --git a/arch/arm/mach-mx3/pcm037.c b/arch/arm/mach-mx3/pcm037.c
index 8cea82587222..3b5ba551cb14 100644
--- a/arch/arm/mach-mx3/pcm037.c
+++ b/arch/arm/mach-mx3/pcm037.c
@@ -181,8 +181,7 @@ void __init pcm037_map_io(void)
static void __init pcm037_timer_init(void)
{
- mxc_clocks_init(26000000);
- mxc_timer_init("ipg_clk.0");
+ mx31_clocks_init(26000000);
}
struct sys_timer pcm037_timer = {
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);
}
-