On Wed, 04 Mar 2015, Alexandre Belloni wrote: > 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 */
Please use BIT() for "1 <<". > +#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 */ -- Lee Jones Linaro STMicroelectronics Landing Team Lead Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog -- 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
