[PATCH v3 2/9] mfd: syscon: Add atmel system timer registers definition

[Alexandre Belloni]

AT91RM920 has a memory range reserved for timer and watchdog configuration.
Expose those registers so that drivers can make use of the system timer syscon
declared in at91 DTs.

Signed-off-by: Alexandre Belloni <alexandre.belloni at free-electrons.com>
---
 include/linux/mfd/syscon/atmel-st.h | 47 +++++++++++++++++++++++++++++++++++++
 1 file changed, 47 insertions(+)
 create mode 100644 include/linux/mfd/syscon/atmel-st.h

diff --git a/include/linux/mfd/syscon/atmel-st.h b/include/linux/mfd/syscon/atmel-st.h
new file mode 100644
index 000000000000..8e29a1028807
--- /dev/null
+++ b/include/linux/mfd/syscon/atmel-st.h
@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2005 Ivan Kokshaysky
+ * Copyright (C) SAN People
+ *
+ * System Timer (ST) - System peripherals registers.
+ * Based on AT91RM9200 datasheet revision E.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#ifndef _LINUX_MFD_SYSCON_ATMEL_ST_H
+#define _LINUX_MFD_SYSCON_ATMEL_ST_H
+
+#define	AT91_ST_CR	0x00	/* Control Register */
+#define		AT91_ST_WDRST	(1 << 0)	/* Watchdog Timer Restart */
+
+#define	AT91_ST_PIMR	0x04	/* Period Interval Mode Register */
+#define		AT91_ST_PIV	(0xffff <<  0)	/* Period Interval Value */
+
+#define	AT91_ST_WDMR	0x08	/* Watchdog Mode Register */
+#define		AT91_ST_WDV	(0xffff <<  0)	/* Watchdog Counter Value */
+#define		AT91_ST_RSTEN	(1 << 16)	/* Reset Enable */
+#define		AT91_ST_EXTEN	(1 << 17)	/* External Signal Assertion Enable */
+
+#define	AT91_ST_RTMR	0x0c	/* Real-time Mode Register */
+#define		AT91_ST_RTPRES	(0xffff <<  0)	/* Real-time Prescalar Value */
+
+#define	AT91_ST_SR	0x10	/* Status Register */
+#define		AT91_ST_PITS	(1 << 0)	/* Period Interval Timer Status */
+#define		AT91_ST_WDOVF	(1 << 1)	/* Watchdog Overflow */
+#define		AT91_ST_RTTINC	(1 << 2)	/* Real-time Timer Increment */
+#define		AT91_ST_ALMS	(1 << 3)	/* Alarm Status */
+
+#define	AT91_ST_IER	0x14	/* Interrupt Enable Register */
+#define	AT91_ST_IDR	0x18	/* Interrupt Disable Register */
+#define	AT91_ST_IMR	0x1c	/* Interrupt Mask Register */
+
+#define	AT91_ST_RTAR	0x20	/* Real-time Alarm Register */
+#define		AT91_ST_ALMV	(0xfffff << 0)	/* Alarm Value */
+
+#define	AT91_ST_CRTR	0x24	/* Current Real-time Register */
+#define		AT91_ST_CRTV	(0xfffff << 0)	/* Current Real-Time Value */
+
+#endif /* _LINUX_MFD_SYSCON_ATMEL_ST_H */
-- 
2.1.0