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 <[email protected]> --- 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 -- To unsubscribe from this list: send the line "unsubscribe linux-watchdog" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
