system.c: runtime base address
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
diff --git a/arch/arm/plat-mxc/system.c b/arch/arm/plat-mxc/system.c
index 79c3757..15e3053 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 @@
/* 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;
+}