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authorLinus Torvalds <torvalds@linux-foundation.org>2011-07-23 10:34:47 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-07-23 10:34:47 -0700
commit9d0715630ebf7bf70daa5e6d8db0e3061268c61e (patch)
tree54562185002b22169d81e0fb3c21312cb510ac40 /include/linux
parentc0c463d34adf0c150e5e24fa412fa23f3f7ddc27 (diff)
parent06c3df49521c1b112b777cc4946e5de057c814ba (diff)
Merge branch 'timers-clocksource-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'timers-clocksource-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: clocksource: apb: Share APB timer code with other platforms
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/dw_apb_timer.h56
1 files changed, 56 insertions, 0 deletions
diff --git a/include/linux/dw_apb_timer.h b/include/linux/dw_apb_timer.h
new file mode 100644
index 000000000000..49638ea3b776
--- /dev/null
+++ b/include/linux/dw_apb_timer.h
@@ -0,0 +1,56 @@
+/*
+ * (C) Copyright 2009 Intel Corporation
+ * Author: Jacob Pan (jacob.jun.pan@intel.com)
+ *
+ * Shared with ARM platforms, Jamie Iles, Picochip 2011
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Support for the Synopsys DesignWare APB Timers.
+ */
+#ifndef __DW_APB_TIMER_H__
+#define __DW_APB_TIMER_H__
+
+#include <linux/clockchips.h>
+#include <linux/clocksource.h>
+#include <linux/interrupt.h>
+
+#define APBTMRS_REG_SIZE 0x14
+
+struct dw_apb_timer {
+ void __iomem *base;
+ unsigned long freq;
+ int irq;
+};
+
+struct dw_apb_clock_event_device {
+ struct clock_event_device ced;
+ struct dw_apb_timer timer;
+ struct irqaction irqaction;
+ void (*eoi)(struct dw_apb_timer *);
+};
+
+struct dw_apb_clocksource {
+ struct dw_apb_timer timer;
+ struct clocksource cs;
+};
+
+void dw_apb_clockevent_register(struct dw_apb_clock_event_device *dw_ced);
+void dw_apb_clockevent_pause(struct dw_apb_clock_event_device *dw_ced);
+void dw_apb_clockevent_resume(struct dw_apb_clock_event_device *dw_ced);
+void dw_apb_clockevent_stop(struct dw_apb_clock_event_device *dw_ced);
+
+struct dw_apb_clock_event_device *
+dw_apb_clockevent_init(int cpu, const char *name, unsigned rating,
+ void __iomem *base, int irq, unsigned long freq);
+struct dw_apb_clocksource *
+dw_apb_clocksource_init(unsigned rating, char *name, void __iomem *base,
+ unsigned long freq);
+void dw_apb_clocksource_register(struct dw_apb_clocksource *dw_cs);
+void dw_apb_clocksource_start(struct dw_apb_clocksource *dw_cs);
+cycle_t dw_apb_clocksource_read(struct dw_apb_clocksource *dw_cs);
+void dw_apb_clocksource_unregister(struct dw_apb_clocksource *dw_cs);
+
+#endif /* __DW_APB_TIMER_H__ */