ARM omap: Make timer base runtime configurable

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

arch/arm/mach-omap/include/mach/timers.h

@@ -47,8 +47,4 @@
 /* Enable sys_clk NO-prescale /1 */
 #define GPT_EN			((0 << 2) | (0x1 << 1) | (0x1 << 0))
 
-/** Sync 32Khz Timer registers */
-#define S32K_CR			(OMAP_32KTIMER_BASE + 0x10)
-#define S32K_FREQUENCY		32768
-
 #endif /*__ASM_ARCH_GPT_H */

arch/arm/mach-omap/omap3_clock.c

@@ -34,10 +34,13 @@
 #include <io.h>
 #include <mach/silicon.h>
 #include <mach/clocks.h>
+#include <mach/omap3-clock.h>
 #include <mach/timers.h>
 #include <mach/sys_info.h>
 #include <mach/syslib.h>
 
+#define S32K_CR			(OMAP_32KTIMER_BASE + 0x10)
+
 /* Following functions are exported from omap3_clock_core.S */
 /* Helper functions */
 static u32 get_osc_clk_speed(void);

arch/arm/mach-omap/omap4_clock.c

@@ -3,6 +3,7 @@
 #include <mach/syslib.h>
 #include <mach/silicon.h>
 #include <mach/clocks.h>
+#include <mach/omap4-clock.h>
 
 #define LDELAY	12000000
 

arch/arm/mach-omap/omap4_generic.c

@@ -1,7 +1,7 @@
 #include <common.h>
 #include <init.h>
 #include <io.h>
-#include <mach/clocks.h>
+#include <mach/omap4-clock.h>
 #include <mach/silicon.h>
 #include <mach/omap4-mux.h>
 #include <mach/syslib.h>

arch/arm/mach-omap/s32k_clksource.c

@@ -31,6 +31,12 @@
 #include <mach/sys_info.h>
 #include <mach/syslib.h>
 
+/** Sync 32Khz Timer registers */
+#define S32K_CR			0x10
+#define S32K_FREQUENCY		32768
+
+static void __iomem *timerbase;
+
 /**
  * @brief Provide a simple clock read
  *
@@ -41,7 +47,7 @@
  */
 static uint64_t s32k_clocksource_read(void)
 {
-	return readl(S32K_CR);
+	return readl(timerbase + S32K_CR);
 }
 
 /* A bit obvious isn't it? */
@@ -62,6 +68,8 @@ static struct clocksource s32k_cs = {
  */
 static int s32k_clocksource_init(void)
 {
+	timerbase = (void *)OMAP_32KTIMER_BASE;
+
 	s32k_cs.mult = clocksource_hz2mult(S32K_FREQUENCY, s32k_cs.shift);
 
 	return init_clock(&s32k_cs);