X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=include%2Flinux%2Fmc146818rtc.h;h=2f4e957af6568990944e0656546fcdba9a8faf3a;hb=c8d8a2321f9c4ee18fbcc399fdc2a77e580a03b9;hp=432b2fa249290343702eabfbc8c031d84a697e39;hpb=225ec70a8cf5086a70d755e394c56186a30053d3;p=linux-2.6-omap-h63xx.git

diff --git a/include/linux/mc146818rtc.h b/include/linux/mc146818rtc.h
index 432b2fa2492..2f4e957af65 100644
--- a/include/linux/mc146818rtc.h
+++ b/include/linux/mc146818rtc.h
@@ -18,6 +18,23 @@
 #ifdef __KERNEL__
 #include <linux/spinlock.h>		/* spinlock_t */
 extern spinlock_t rtc_lock;		/* serialize CMOS RAM access */
+
+/* Some RTCs extend the mc146818 register set to support alarms of more
+ * than 24 hours in the future; or dates that include a century code.
+ * This platform_data structure can pass this information to the driver.
+ *
+ * Also, some platforms need suspend()/resume() hooks to kick in special
+ * handling of wake alarms, e.g. activating ACPI BIOS hooks or setting up
+ * a separate wakeup alarm used by some almost-clone chips.
+ */
+struct cmos_rtc_board_info {
+	void	(*wake_on)(struct device *dev);
+	void	(*wake_off)(struct device *dev);
+
+	u8	rtc_day_alarm;		/* zero, or register index */
+	u8	rtc_mon_alarm;		/* zero, or register index */
+	u8	rtc_century;		/* zero, or register index */
+};
 #endif
 
 /**********************************************************************
@@ -92,8 +109,11 @@ extern spinlock_t rtc_lock;		/* serialize CMOS RAM access */
 #ifndef ARCH_RTC_LOCATION	/* Override by <asm/mc146818rtc.h>? */
 
 #define RTC_IO_EXTENT	0x8
+#define RTC_IO_EXTENT_USED	0x2
 #define RTC_IOMAPPED	1	/* Default to I/O mapping. */
 
+#else
+#define RTC_IO_EXTENT_USED      RTC_IO_EXTENT
 #endif /* ARCH_RTC_LOCATION */
 
 #endif /* _MC146818RTC_H */