system.c: runtime base address

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

1 files changed, 13 insertions, 9 deletions

diff --git a/arch/arm/plat-mxc/system.c b/arch/arm/plat-mxc/system.c
index 79c37577c916..15e30532f4a5 100644
--- a/arch/arm/plat-mxc/system.c
+++ b/arch/arm/plat-mxc/system.c
@@ -30,29 +30,28 @@
 #include <asm/proc-fns.h>
 #include <asm/system.h>
 
-#ifdef CONFIG_ARCH_MX1
-#define WDOG_WCR_REG            IO_ADDRESS(WDT_BASE_ADDR)
-#define WDOG_WCR_ENABLE         (1 << 0)
-#else
-#define WDOG_WCR_REG            IO_ADDRESS(WDOG_BASE_ADDR)
-#define WDOG_WCR_ENABLE         (1 << 2)
-#endif
+static void __iomem *wdog_base;
 
 /*
  * Reset the system. It is called by machine_restart().
  */
 void arch_reset(char mode, const char *cmd)
 {
-        if (!cpu_is_mx1()) {
+        unsigned int wcr_enable;
+
+        if (cpu_is_mx1()) {
+                wcr_enable = (1 << 0);
+        } else {
                 struct clk *clk;
 
                 clk = clk_get_sys("imx-wdt.0", NULL);
                 if (!IS_ERR(clk))
                         clk_enable(clk);
+                wcr_enable = (1 << 2);
         }
 
         /* Assert SRS signal */
-        __raw_writew(WDOG_WCR_ENABLE, WDOG_WCR_REG);
+        __raw_writew(wcr_enable, wdog_base);
 
         /* wait for reset to assert... */
         mdelay(500);
@@ -65,3 +64,8 @@ void arch_reset(char mode, const char *cmd)
         /* we'll take a jump through zero as a poor second */
         cpu_reset(0);
 }
+
+void mxc_arch_reset_init(void __iomem *base)
+{
+        wdog_base = base;
+}