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From 1cdda942022b5704fd562519e73884b709077b41 Mon Sep 17 00:00:00 2001
From: Tony Liu <Bo.Liu@windriver.com>
Date: Thu, 25 Feb 2010 16:23:42 +0800
Subject: [PATCH] arm_versatile_926ejs: kick off PrimeCell RTC PL031
For RTC PL031, need to explicitly set bit "RTC start" of Control
register(RTCCR) to enable it's counting.
Signed-off-by: Tony Liu <Bo.Liu@windriver.com>
---
drivers/rtc/rtc-pl031.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/rtc/rtc-pl031.c b/drivers/rtc/rtc-pl031.c
index 82eb7da2c478..e30ea7406a07 100644
--- a/drivers/rtc/rtc-pl031.c
+++ b/drivers/rtc/rtc-pl031.c
@@ -395,8 +395,12 @@ static int pl031_probe(struct amba_device *adev, const struct amba_id *id)
vendor->irqflags, "rtc-pl031", ldata);
if (ret)
goto out_no_irq;
+ /*Set bit "RTC start" in register RTCCR to enable RTC */
+ writel(0x1, ldata->base + RTC_CR);
+
dev_pm_set_wake_irq(&adev->dev, adev->irq[0]);
}
+
return 0;
out_no_irq:
--
2.5.0
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