Merge branch 'kirkwood/dt' into next/dt2

This was part of the for-next branch earlier but for some reasons
a rebuild of the tree missed it, so I'm putting it back in now.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>

1 files changed, 15 insertions, 9 deletions

diff --git a/drivers/watchdog/orion_wdt.c b/drivers/watchdog/orion_wdt.c
index 4ad78f868515..1368e4ca3100 100644
--- a/drivers/watchdog/orion_wdt.c
+++ b/drivers/watchdog/orion_wdt.c
@@ -28,9 +28,9 @@
 /*
  * Watchdog timer block registers.
  */
-#define TIMER_CTRL              (TIMER_VIRT_BASE + 0x0000)
+#define TIMER_CTRL              0x0000
 #define  WDT_EN                 0x0010
-#define WDT_VAL                 (TIMER_VIRT_BASE + 0x0024)
+#define WDT_VAL                 0x0024
 
 #define WDT_MAX_CYCLE_COUNT     0xffffffff
 #define WDT_IN_USE              0
@@ -40,6 +40,7 @@ static int nowayout = WATCHDOG_NOWAYOUT;
 static int heartbeat = -1;              /* module parameter (seconds) */
 static unsigned int wdt_max_duration;   /* (seconds) */
 static unsigned int wdt_tclk;
+static void __iomem *wdt_reg;
 static unsigned long wdt_status;
 static DEFINE_SPINLOCK(wdt_lock);
 
@@ -48,7 +49,7 @@ static void orion_wdt_ping(void)
         spin_lock(&wdt_lock);
 
         /* Reload watchdog duration */
-        writel(wdt_tclk * heartbeat, WDT_VAL);
+        writel(wdt_tclk * heartbeat, wdt_reg + WDT_VAL);
 
         spin_unlock(&wdt_lock);
 }
@@ -60,7 +61,7 @@ static void orion_wdt_enable(void)
         spin_lock(&wdt_lock);
 
         /* Set watchdog duration */
-        writel(wdt_tclk * heartbeat, WDT_VAL);
+        writel(wdt_tclk * heartbeat, wdt_reg + WDT_VAL);
 
         /* Clear watchdog timer interrupt */
         reg = readl(BRIDGE_CAUSE);
@@ -68,9 +69,9 @@ static void orion_wdt_enable(void)
         writel(reg, BRIDGE_CAUSE);
 
         /* Enable watchdog timer */
-        reg = readl(TIMER_CTRL);
+        reg = readl(wdt_reg + TIMER_CTRL);
         reg |= WDT_EN;
-        writel(reg, TIMER_CTRL);
+        writel(reg, wdt_reg + TIMER_CTRL);
 
         /* Enable reset on watchdog */
         reg = readl(RSTOUTn_MASK);
@@ -92,9 +93,9 @@ static void orion_wdt_disable(void)
         writel(reg, RSTOUTn_MASK);
 
         /* Disable watchdog timer */
-        reg = readl(TIMER_CTRL);
+        reg = readl(wdt_reg + TIMER_CTRL);
         reg &= ~WDT_EN;
-        writel(reg, TIMER_CTRL);
+        writel(reg, wdt_reg + TIMER_CTRL);
 
         spin_unlock(&wdt_lock);
 }
@@ -102,7 +103,7 @@ static void orion_wdt_disable(void)
 static int orion_wdt_get_timeleft(int *time_left)
 {
         spin_lock(&wdt_lock);
-        *time_left = readl(WDT_VAL) / wdt_tclk;
+        *time_left = readl(wdt_reg + WDT_VAL) / wdt_tclk;
         spin_unlock(&wdt_lock);
         return 0;
 }
@@ -236,6 +237,7 @@ static struct miscdevice orion_wdt_miscdev = {
 static int __devinit orion_wdt_probe(struct platform_device *pdev)
 {
         struct orion_wdt_platform_data *pdata = pdev->dev.platform_data;
+        struct resource *res;
         int ret;
 
         if (pdata) {
@@ -245,6 +247,10 @@ static int __devinit orion_wdt_probe(struct platform_device *pdev)
                 return -ENODEV;
         }
 
+        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+
+        wdt_reg = ioremap(res->start, resource_size(res));
+
         if (orion_wdt_miscdev.parent)
                 return -EBUSY;
         orion_wdt_miscdev.parent = &pdev->dev;