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-rw-r--r--include/asm-m68k/rtc.h76
1 files changed, 76 insertions, 0 deletions
diff --git a/include/asm-m68k/rtc.h b/include/asm-m68k/rtc.h
new file mode 100644
index 000000000000..71406fc4e599
--- /dev/null
+++ b/include/asm-m68k/rtc.h
@@ -0,0 +1,76 @@
+/* asm-m68k/rtc.h
+ *
+ * Copyright Richard Zidlicky
+ * implementation details for genrtc/q40rtc driver
+ */
+/* permission is hereby granted to copy, modify and redistribute this code
+ * in terms of the GNU Library General Public License, Version 2 or later,
+ * at your option.
+ */
+
+#ifndef _ASM_RTC_H
+#define _ASM_RTC_H
+
+#ifdef __KERNEL__
+
+#include <linux/rtc.h>
+#include <asm/errno.h>
+#include <asm/machdep.h>
+
+#define RTC_PIE 0x40 /* periodic interrupt enable */
+#define RTC_AIE 0x20 /* alarm interrupt enable */
+#define RTC_UIE 0x10 /* update-finished interrupt enable */
+
+/* some dummy definitions */
+#define RTC_BATT_BAD 0x100 /* battery bad */
+#define RTC_SQWE 0x08 /* enable square-wave output */
+#define RTC_DM_BINARY 0x04 /* all time/date values are BCD if clear */
+#define RTC_24H 0x02 /* 24 hour mode - else hours bit 7 means pm */
+#define RTC_DST_EN 0x01 /* auto switch DST - works f. USA only */
+
+static inline unsigned int get_rtc_time(struct rtc_time *time)
+{
+ /*
+ * Only the values that we read from the RTC are set. We leave
+ * tm_wday, tm_yday and tm_isdst untouched. Even though the
+ * RTC has RTC_DAY_OF_WEEK, we ignore it, as it is only updated
+ * by the RTC when initially set to a non-zero value.
+ */
+ mach_hwclk(0, time);
+ return RTC_24H;
+}
+
+static inline int set_rtc_time(struct rtc_time *time)
+{
+ return mach_hwclk(1, time);
+}
+
+static inline unsigned int get_rtc_ss(void)
+{
+ if (mach_get_ss)
+ return mach_get_ss();
+ else{
+ struct rtc_time h;
+
+ get_rtc_time(&h);
+ return h.tm_sec;
+ }
+}
+
+static inline int get_rtc_pll(struct rtc_pll_info *pll)
+{
+ if (mach_get_rtc_pll)
+ return mach_get_rtc_pll(pll);
+ else
+ return -EINVAL;
+}
+static inline int set_rtc_pll(struct rtc_pll_info *pll)
+{
+ if (mach_set_rtc_pll)
+ return mach_set_rtc_pll(pll);
+ else
+ return -EINVAL;
+}
+#endif /* __KERNEL__ */
+
+#endif /* _ASM__RTC_H */