ARM: mmp: enable rtc in pxa910

Support rtc-sa1100 driver in pxa910.

Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>

3 files changed, 25 insertions, 0 deletions

diff --git a/arch/arm/mach-mmp/include/mach/pxa910.h b/arch/arm/mach-mmp/include/mach/pxa910.h
index 4de13abef7b..e2e1f1e5e12 100644
--- a/arch/arm/mach-mmp/include/mach/pxa910.h
+++ b/arch/arm/mach-mmp/include/mach/pxa910.h
@@ -22,6 +22,7 @@ extern struct pxa_device_desc pxa910_device_pwm4;
 extern struct pxa_device_desc pxa910_device_nand;
 
 extern struct platform_device pxa910_device_gpio;
+extern struct platform_device pxa910_device_rtc;
 
 static inline int pxa910_add_uart(int id)
 {
diff --git a/arch/arm/mach-mmp/include/mach/regs-apbc.h b/arch/arm/mach-mmp/include/mach/regs-apbc.h
index 1a96585336b..8a37fb00365 100644
--- a/arch/arm/mach-mmp/include/mach/regs-apbc.h
+++ b/arch/arm/mach-mmp/include/mach/regs-apbc.h
@@ -57,6 +57,7 @@
 #define APBC_PXA910_SSP1        APBC_REG(0x01c)
 #define APBC_PXA910_SSP2        APBC_REG(0x020)
 #define APBC_PXA910_IPC         APBC_REG(0x024)
+#define APBC_PXA910_RTC         APBC_REG(0x028)
 #define APBC_PXA910_TWSI0       APBC_REG(0x02c)
 #define APBC_PXA910_KPC         APBC_REG(0x030)
 #define APBC_PXA910_TIMERS      APBC_REG(0x034)
diff --git a/arch/arm/mach-mmp/include/mach/regs-rtc.h b/arch/arm/mach-mmp/include/mach/regs-rtc.h
new file mode 100644
index 00000000000..5bff886a394
--- /dev/null
+++ b/arch/arm/mach-mmp/include/mach/regs-rtc.h
@@ -0,0 +1,23 @@
+#ifndef __ASM_MACH_REGS_RTC_H
+#define __ASM_MACH_REGS_RTC_H
+
+#include <mach/addr-map.h>
+
+#define RTC_VIRT_BASE   (APB_VIRT_BASE + 0x10000)
+#define RTC_REG(x)      (*((volatile u32 __iomem *)(RTC_VIRT_BASE + (x))))
+
+/*
+ * Real Time Clock
+ */
+
+#define RCNR            RTC_REG(0x00)   /* RTC Count Register */
+#define RTAR            RTC_REG(0x04)   /* RTC Alarm Register */
+#define RTSR            RTC_REG(0x08)   /* RTC Status Register */
+#define RTTR            RTC_REG(0x0C)   /* RTC Timer Trim Register */
+
+#define RTSR_HZE        (1 << 3)        /* HZ interrupt enable */
+#define RTSR_ALE        (1 << 2)        /* RTC alarm interrupt enable */
+#define RTSR_HZ         (1 << 1)        /* HZ rising-edge detected */
+#define RTSR_AL         (1 << 0)        /* RTC alarm detected */
+
+#endif /* __ASM_MACH_REGS_RTC_H */