From mboxrd@z Thu Jan 1 00:00:00 1970 From: Lee Jones Subject: Re: [PATCH v3 2/9] mfd: syscon: Add atmel system timer registers definition Date: Wed, 4 Mar 2015 15:44:03 +0000 Message-ID: <20150304154403.GM32624@x1> References: <1425478897-27322-1-git-send-email-alexandre.belloni@free-electrons.com> <1425478897-27322-3-git-send-email-alexandre.belloni@free-electrons.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Received: from mail-wg0-f43.google.com ([74.125.82.43]:35683 "EHLO mail-wg0-f43.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754373AbbCDPoI (ORCPT ); Wed, 4 Mar 2015 10:44:08 -0500 Received: by wggz12 with SMTP id z12so47616655wgg.2 for ; Wed, 04 Mar 2015 07:44:07 -0800 (PST) Content-Disposition: inline In-Reply-To: <1425478897-27322-3-git-send-email-alexandre.belloni@free-electrons.com> Sender: linux-pm-owner@vger.kernel.org List-Id: linux-pm@vger.kernel.org To: Alexandre Belloni Cc: Nicolas Ferre , Daniel Lezcano , Boris Brezillon , Jean-Christophe Plagniol-Villard , Thomas Gleixner , Wim Van Sebroeck , Guenter Roeck , Sebastian Reichel , Dmitry Eremin-Solenikov , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-watchdog@vger.kernel.org, linux-pm@vger.kernel.org On Wed, 04 Mar 2015, Alexandre Belloni wrote: > AT91RM920 has a memory range reserved for timer and watchdog configur= ation. > Expose those registers so that drivers can make use of the system tim= er syscon > declared in at91 DTs. >=20 > Signed-off-by: Alexandre Belloni > --- > include/linux/mfd/syscon/atmel-st.h | 47 +++++++++++++++++++++++++++= ++++++++++ > 1 file changed, 47 insertions(+) > create mode 100644 include/linux/mfd/syscon/atmel-st.h >=20 > 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 mod= ify > + * 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 */ --=20 Lee Jones Linaro STMicroelectronics Landing Team Lead Linaro.org =E2=94=82 Open source software for ARM SoCs =46ollow Linaro: Facebook | Twitter | Blog