1 files changed, 24 insertions, 0 deletions

diff --git a/arch/arm/mach-s3c2412/irq.c b/arch/arm/mach-s3c2412/irq.c
index e9d0c769f5da..cc1917bf952a 100644
--- a/arch/arm/mach-s3c2412/irq.c
+++ b/arch/arm/mach-s3c2412/irq.c
@@ -33,6 +33,7 @@
 
 #include <asm/arch/regs-irq.h>
 #include <asm/arch/regs-gpio.h>
+#include <asm/arch/regs-power.h>
 
 #include <asm/plat-s3c24xx/cpu.h>
 #include <asm/plat-s3c24xx/irq.h>
@@ -153,6 +154,22 @@ static struct irq_chip s3c2412_irq_cfsdi = {
         .unmask         = s3c2412_irq_cfsdi_unmask,
 };
 
+static int s3c2412_irq_rtc_wake(unsigned int irqno, unsigned int state)
+{
+        unsigned long pwrcfg;
+
+        pwrcfg = __raw_readl(S3C2412_PWRCFG);
+        if (state)
+                pwrcfg &= ~S3C2412_PWRCFG_RTC_MASKIRQ;
+        else
+                pwrcfg |= S3C2412_PWRCFG_RTC_MASKIRQ;
+        __raw_writel(pwrcfg, S3C2412_PWRCFG);
+
+        return s3c_irq_chip.set_wake(irqno, state);
+}
+
+static struct irq_chip s3c2412_irq_rtc_chip;
+
 static int s3c2412_irq_add(struct sys_device *sysdev)
 {
         unsigned int irqno;
@@ -173,6 +190,13 @@ static int s3c2412_irq_add(struct sys_device *sysdev)
                 set_irq_flags(irqno, IRQF_VALID);
         }
 
+        /* change RTC IRQ's set wake method */
+
+        s3c2412_irq_rtc_chip = s3c_irq_chip;
+        s3c2412_irq_rtc_chip.set_wake = s3c2412_irq_rtc_wake;
+
+        set_irq_chip(IRQ_RTC, &s3c2412_irq_rtc_chip);
+
         return 0;
 }