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authorNicolas Pitre <nicolas.pitre@linaro.org>2011-08-03 11:34:59 -0400
committerNicolas Pitre <nico@fluxnic.net>2012-01-20 18:55:13 -0500
commit92311272c1a5148e5e19d0ebc9acda0ed978fba7 (patch)
treee19b240e158378b12b5a6565cb29c55f0386ec2b /arch
parent50edbf78f566bcb7749c558129a849c63ae15838 (diff)
ARM: s3c24xx: move special idle code to out of line
... and hook it to arm_pm_idle. Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/mach-s3c2410/include/mach/system.h40
-rw-r--r--arch/arm/mach-s3c2412/s3c2412.c4
-rw-r--r--arch/arm/mach-s3c2416/s3c2416.c3
-rw-r--r--arch/arm/plat-s3c24xx/cpu.c27
4 files changed, 29 insertions, 45 deletions
diff --git a/arch/arm/mach-s3c2410/include/mach/system.h b/arch/arm/mach-s3c2410/include/mach/system.h
index 5e215c1a5c8..3ce4b38ba1f 100644
--- a/arch/arm/mach-s3c2410/include/mach/system.h
+++ b/arch/arm/mach-s3c2410/include/mach/system.h
@@ -10,45 +10,7 @@
* published by the Free Software Foundation.
*/
-#include <linux/io.h>
-#include <mach/hardware.h>
-
-#include <mach/map.h>
-#include <mach/idle.h>
-
-#include <mach/regs-clock.h>
-
-void (*s3c24xx_idle)(void);
-
-void s3c24xx_default_idle(void)
-{
- unsigned long tmp;
- int i;
-
- /* idle the system by using the idle mode which will wait for an
- * interrupt to happen before restarting the system.
- */
-
- /* Warning: going into idle state upsets jtag scanning */
-
- __raw_writel(__raw_readl(S3C2410_CLKCON) | S3C2410_CLKCON_IDLE,
- S3C2410_CLKCON);
-
- /* the samsung port seems to do a loop and then unset idle.. */
- for (i = 0; i < 50; i++) {
- tmp += __raw_readl(S3C2410_CLKCON); /* ensure loop not optimised out */
- }
-
- /* this bit is not cleared on re-start... */
-
- __raw_writel(__raw_readl(S3C2410_CLKCON) & ~S3C2410_CLKCON_IDLE,
- S3C2410_CLKCON);
-}
-
static void arch_idle(void)
{
- if (s3c24xx_idle != NULL)
- (s3c24xx_idle)();
- else
- s3c24xx_default_idle();
+ cpu_do_idle();
}
diff --git a/arch/arm/mach-s3c2412/s3c2412.c b/arch/arm/mach-s3c2412/s3c2412.c
index aff6e85a97c..c6eac987109 100644
--- a/arch/arm/mach-s3c2412/s3c2412.c
+++ b/arch/arm/mach-s3c2412/s3c2412.c
@@ -32,8 +32,6 @@
#include <asm/proc-fns.h>
#include <asm/irq.h>
-#include <mach/idle.h>
-
#include <plat/cpu-freq.h>
#include <mach/regs-clock.h>
@@ -164,7 +162,7 @@ void __init s3c2412_map_io(void)
/* set our idle function */
- s3c24xx_idle = s3c2412_idle;
+ arm_pm_idle = s3c2412_idle;
/* register our io-tables */
diff --git a/arch/arm/mach-s3c2416/s3c2416.c b/arch/arm/mach-s3c2416/s3c2416.c
index 5287d2808d3..08bb0355159 100644
--- a/arch/arm/mach-s3c2416/s3c2416.c
+++ b/arch/arm/mach-s3c2416/s3c2416.c
@@ -44,7 +44,6 @@
#include <asm/proc-fns.h>
#include <asm/irq.h>
-#include <mach/idle.h>
#include <mach/regs-s3c2443-clock.h>
#include <plat/gpio-core.h>
@@ -88,8 +87,6 @@ int __init s3c2416_init(void)
{
printk(KERN_INFO "S3C2416: Initializing architecture\n");
- /* s3c24xx_idle = s3c2416_idle; */
-
/* change WDT IRQ number */
s3c_device_wdt.resource[1].start = IRQ_S3C2443_WDT;
s3c_device_wdt.resource[1].end = IRQ_S3C2443_WDT;
diff --git a/arch/arm/plat-s3c24xx/cpu.c b/arch/arm/plat-s3c24xx/cpu.c
index 21f1fda8b66..32a09931350 100644
--- a/arch/arm/plat-s3c24xx/cpu.c
+++ b/arch/arm/plat-s3c24xx/cpu.c
@@ -32,6 +32,7 @@
#include <linux/io.h>
#include <mach/hardware.h>
+#include <mach/regs-clock.h>
#include <asm/irq.h>
#include <asm/cacheflush.h>
@@ -190,8 +191,34 @@ static unsigned long s3c24xx_read_idcode_v4(void)
return __raw_readl(S3C2410_GSTATUS1);
}
+static void s3c24xx_default_idle(void)
+{
+ unsigned long tmp;
+ int i;
+
+ /* idle the system by using the idle mode which will wait for an
+ * interrupt to happen before restarting the system.
+ */
+
+ /* Warning: going into idle state upsets jtag scanning */
+
+ __raw_writel(__raw_readl(S3C2410_CLKCON) | S3C2410_CLKCON_IDLE,
+ S3C2410_CLKCON);
+
+ /* the samsung port seems to do a loop and then unset idle.. */
+ for (i = 0; i < 50; i++)
+ tmp += __raw_readl(S3C2410_CLKCON); /* ensure loop not optimised out */
+
+ /* this bit is not cleared on re-start... */
+
+ __raw_writel(__raw_readl(S3C2410_CLKCON) & ~S3C2410_CLKCON_IDLE,
+ S3C2410_CLKCON);
+}
+
void __init s3c24xx_init_io(struct map_desc *mach_desc, int size)
{
+ arm_pm_idle = s3c24xx_default_idle;
+
/* initialise the io descriptors we need for initialisation */
iotable_init(mach_desc, size);
iotable_init(s3c_iodesc, ARRAY_SIZE(s3c_iodesc));