Commit Graph

127 Commits

Author SHA1 Message Date
Paul Mundt
063adc7502 rtc: rtc-sh: clock framework support.
This adds clock framework support to the rtc-sh driver. With this in
place, platforms can default to leaving the clock disabled rather than
placing it in the always enabled state.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-16 14:12:22 +09:00
Linus Torvalds
bad6a5c08c Merge git://git.kernel.org/pub/scm/linux/kernel/git/kyle/rtc-parisc
* git://git.kernel.org/pub/scm/linux/kernel/git/kyle/rtc-parisc:
  powerpc/ps3: Add rtc-ps3
  powerpc: Hook up rtc-generic, and kill rtc-ppc
  m68k: Hook up rtc-generic
  parisc: rtc: Rename rtc-parisc to rtc-generic
  parisc: rtc: Add missing module alias
  parisc: rtc: platform_driver_probe() fixups
  parisc: rtc: get_rtc_time() returns unsigned int
2009-04-03 09:51:35 -07:00
Daniel Glockner
f30281f4f7 rtc: add m41t62 support to rtc-m41t80 driver
Compared to the other supported chips, the m41t62 uses a different
register to set the square wave frequency.

Signed-off-by: Daniel Glockner <dg@emlix.com>
Cc: Chris Zankel <chris@zankel.net>
Cc: David Brownell <david-b@pacbell.net>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-02 19:04:51 -07:00
Geert Uytterhoeven
0b5f037a4d powerpc/ps3: Add rtc-ps3
Create a real RTC driver for PS3, and unhook the deprecated
ppc_md.[gs]et_rtc_time.

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Acked-by: Alessandro Zummo <a.zummo@towertech.it>
Acked-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
2009-04-02 01:05:32 +00:00
Geert Uytterhoeven
bcd68a70cb powerpc: Hook up rtc-generic, and kill rtc-ppc
PowerPC has been a long time user of the generic RTC abstraction, so hook up
rtc-generic:
  - Create the "rtc-generic" platform device if ppc_md.get_rtc_time is set,
  - Kill rtc-ppc, as rtc-generic offers the same functionality in a more
    generic way, and supports autoloading through udev.

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Acked-by: David Woodhouse <David.Woodhouse@intel.com>
Acked-by: Alessandro Zummo <a.zummo@towertech.it>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
2009-04-02 01:05:31 +00:00
Geert Uytterhoeven
2ceb3ad705 m68k: Hook up rtc-generic
m68k has been a long time user of the generic RTC abstraction, so hook up
rtc-generic:
  - Create the "rtc-generic" platform device if mach_hwclk is set,
  - Add checks for mach_hwclk, in anticipation of RTC chip drivers being moved
    to drivers/rtc/.

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Acked-by: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
2009-04-02 01:05:31 +00:00
Geert Uytterhoeven
3afe6d0462 parisc: rtc: Rename rtc-parisc to rtc-generic
The rtc-parisc driver is not PA-RISC specific at all, as it uses the existing
(but deprecated) generic RTC infrastructure ([gs]et_rtc_time()).
Rename the driver from rtc-parisc to rtc-generic.

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Acked-by: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
2009-04-02 01:05:31 +00:00
Matthias Fuchs
a216685818 rtc: add EPSON RX8025 support to DS1307 RTC driver
Add support for the EPSON RX8025 RTC.  The date/time registers of this
chip are compatible with the DS1307.

Signed-off-by: Matthias Fuchs <matthias.fuchs@esd-electronics.com>
Signed-off-by: Alessandro Zummo <a.zummo@towertech.it>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-01 08:59:25 -07:00
dann frazier
5e3fd9e581 rtc: add platform driver for EFI
Munge Stephane Eranian's efirtc.c code into an rtc platform driver

[akpm@linux-foundation.org: use is_leap_year()]
Signed-off-by: dann frazier <dannf@hp.com>
Cc: Alessandro Zummo <alessandro.zummo@towertech.it>
Cc: stephane eranian <eranian@googlemail.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-01 08:59:24 -07:00
David Brownell
afd8d0f940 rtc: rtc-dm355evm driver
Simple RTC driver for the MSP430 firmware on the DM355 EVM board.  Other
than not supporting atomic reads/writes of all four bytes, this is
reasonable as a basic no-alarm RTC.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Acked-by: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-02-05 12:56:46 -08:00
Balaji Rao
eae854b22d rtc: PCF50633 rtc driver
Signed-off-by: Balaji Rao <balajirrao@openmoko.org>
Cc: Andy Green <andy@openmoko.com>
Acked-by: Alessandro Zummo <a.zummo@towertech.it>
Cc: Paul Gortmaker <a.zummo@towertech.it>
Cc: rtc-linux@googlegroups.com
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2009-01-11 01:34:24 +01:00
Saeed Bishara
defb45147b rtc: driver for Marvell's SoCs 88F6281 and 88F6192
Driver for the on-chip RTC found in some of Marvell's SoCs such as the
Kirkwood 88F6281 and 88F6192 devices.

Signed-off-by: Saeed Bishara <saeed@marvell.com>
Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Signed-off-by: Nicolas Pitre <nico@marvell.com>
Signed-off-by: Alessandro Zummo <a.zummo@towertech.it>
Cc: David Brownell <david-b@pacbell.net>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-06 15:59:25 -08:00
Atsushi Nemoto
0e1492330c rtc: add rtc-tx4939 driver
Add support for RTC in TX4939 SoC.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Acked-by: Alessandro Zummo <a.zummo@towertech.it>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-06 15:59:25 -08:00
Manuel Lauss
45fd8a0c14 rtc: Au1000 On-Chip Counter0-as-RTC driver.
Simple driver which uses the Au1xxx Time-Of-Year counter (counter0)
as a 1Hz RTC.

[akpm@linux-foundation.org: repair Kconfig]
Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net>
Acked-by: Alessandro Zummo <a.zummo@towertech.it>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-06 15:59:24 -08:00
Alessandro Zummo
ae64d16956 rtc: kconfig cleanup
Remove double spaces and adds some suggestions.  It also fixes the
descriptions of options that are no more available as modules.

Signed-off-by: Alessandro Zummo <a.zummo@towertech.it>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-06 15:59:24 -08:00
Alessandro Zummo
7b9b2ef1bb rtc: rtc-ds1390 probe sequence and misc fixes
Small fixes for the ds1390 driver

 - fixed initialization of the spi device
 - added missing includes
 - removed printks
 - removed useless wrappers for rtc ops
 - removed dead code

Signed-off-by: Alessandro Zummo <a.zummo@towertech.it>
Cc: Mark Jackson <mpfj@mimc.co.uk>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-06 15:59:24 -08:00
Robert Jarzmik
dc9443688e rtc: driver for pxa27x and pxa3xx SoC
With PXA27x and above, a new RTC hardware block was added in addition to
the legacy one which is also found on the SA1100 SOC family.  This second
RTC block is called "wristwatch" and "periodic interrupt" and works
independently from the other RTC block.

The driver offers provides :
 - a 1Hz ticking clock
 - a periodic alarm, in the 1Hz to 1000Hz range
 - a one shot alarm

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Cc: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Alessandro Zummo <a.zummo@towertech.it>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-06 15:59:24 -08:00
Alessandro Zummo
099e657625 rtc: add alarm/update irq interfaces
Add standard interfaces for alarm/update irqs enabling.  Drivers are no
more required to implement equivalent ioctl code as rtc-dev will provide
it.

UIE emulation should now be handled correctly and will work even for those
RTC drivers who cannot be configured to do both UIE and AIE.

Signed-off-by: Alessandro Zummo <a.zummo@towertech.it>
Cc: David Brownell <david-b@pacbell.net>
Cc: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Cc: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-04 13:33:20 -08:00
Mark Jackson
06de180851 rtc: add Dallas DS1390/93/94 RTC chips
Add support for the Dallas DS1390/93/94 SPI RTC chip.

Signed-off-by: Mark Jackson <mpfj@mimc.co.uk>
Acked-by: Alessandro Zummo <a.zummo@towertech.it>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-11-12 17:17:18 -08:00
Martyn Welch
a7fa9851b6 rtc: basic implementation of Epson RX-8581 I2C Real Time Clock
Provide the basic "get" and "set" functionality for the Epson RX-8581 I2C
RTC.  It currently does not support the RTC's Alarm or Fixed-cycle timer.

[akpm@linux-foundation.org: need log2.h for ilog2(), remove unneeded initialisation]
Signed-off-by: Martyn Welch <martyn.welch@gefanuc.com>
Signed-off-by: Alessandro Zummo <a.zummo@towertech.it>
Cc: David Brownell <david-b@pacbell.net>
Cc: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-11-12 17:17:18 -08:00
Mark Brown
077eaf5b40 rtc: rtc-wm8350: add support for WM8350 RTC
This adds support for the RTC provided by the Wolfson Microelectronics
WM8350.

This driver was originally written by Graeme Gregory and Liam Girdwood,
though it has been modified since then to update it to current mainline
coding standards and for API completeness.

[akpm@linux-foundation.org: s/schedule_timeout_interruptible/schedule_timeout_uninterruptible/ to prevent bogus timeout when signal_pending()]
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: David Brownell <david-b@pacbell.net>
Cc: Liam Girdwood <linux@wolfsonmicro.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-11-12 17:17:18 -08:00
Linus Torvalds
36ec891895 Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (23 commits)
  sh: asm/gpio.h needs linux/kernel.h for might_sleep()/WARN_ON().
  sh: mach-highlander: Handle SCIF pinmuxing on R7785RP.
  sh: sh7785 pinmux support
  sh: update defconfigs.
  sh: Kill off unused p1fc divisors from SH7763 clk fwk.
  sh: improve pinmux support for single direction pins
  sh: use 10MHz VIO_CLK for ov772x on Migo-R
  sh: Update gpio_set_value() pin value handling
  sh: update ov772x byte order on Migo-R
  rtc: Add R2025S/D comment to rs5c372 Kconfig entry.
  sh: Export cache flush routines needed by sh_eth on SH7619.
  sh: Wire up oops reporting in the die notifier chain.
  sh: ap325rxa: Kill off unused port definitions.
  sh: Hook up PB0->PB7 input-only pins in SH7203 PFC.
  sh: ap325rxa: Move off of hardcoded pinmux for flctl initialization.
  sh: add support FLCTL for ap325rxa board
  sh: gpio: Stub in dummy GPIO<->IRQ mapping routines.
  sh: rsk7203: leds-gpio support for RSK+ LEDs.
  sh: gpio: Include asm-generic/gpio.h for non-gpiolib stubs.
  sh: fix soc-camera compile breakage on Migo-R.
  ...
2008-10-23 10:20:15 -07:00
David Brownell
f96411ab73 mfd: rtc-twl4030 driver
This adds a driver for the RTC inside the TWL4030 multi-function device.
It's a fairly basic RTC, with a wake-capable alarm.

Note that many of the pre-release Overo boards now in circulation can't
effectively use this RTC, because of a wiring error that puts its TWL
chip into "secure" mode.  (As in "secure yourself against tampering".)
This isn't an issue on other OMAP3 boards now supported in mainline,
such as Beagle and Labrador.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Acked-by: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2008-10-22 01:19:38 +02:00
Paul Mundt
5d4529be5e rtc: Add R2025S/D comment to rs5c372 Kconfig entry.
This was accidentally left out when the R2025S/D support was merged
earlier.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-21 20:12:59 +09:00
Linus Torvalds
e3d2f927f7 Merge git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6:
  parisc: convert to generic compat_sys_ptrace
  parisc: add rtc platform driver
  parisc: initialize unwinder much earlier
  parisc: add new syscalls
  parisc: hijack jump to start_kernel
  parisc: add pdc_coproc_cfg_unlocked and set_firmware_width_unlocked
  parisc: move include/asm-parisc to arch/parisc/include/asm
  parisc: move pdc_result to real2.S
  parisc: unify CCIO_COLLECT_STATS implementation
  parisc: add arch/parisc/kernel/.gitignore
  parisc: ropes.h - fix <asm-parisc/*> -> <asm/*>
  parisc: parisc-agp - fix <asm-parisc/*> -> <asm/*>

Resolve remove/rename conflict: include/asm-parisc/a.out.h is no longer
relevant.
2008-10-20 14:40:31 -07:00
Steven A. Falco
d3a126fcf9 rtc: rtc-m41t80.c: add support for the ST M41T65 RTC
Add support for M41T65 Real Time Clock chip.

The main differences I see between the M41T65 and M41T80 are that:

1) The M41T65 watchdog timer has three bits controlling resolution
   (versus two for the M41T80).

2) There is no register 0x13 for controlling square-wave output.

Signed-off-by: Steven A. Falco <sfalco@harris.com>
Acked-by: Alessandro Zummo <a.zummo@towertech.it>
Cc: "Maciej W. Rozycki" <macro@linux-mips.org>
Acked-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:40 -07:00
Kumar Gala
0327457221 rtc: use CONFIG_PPC instead of CONFIG_PPC_MERGE
Now that arch/ppc is dead CONFIG_PPC_MERGE is always defined for all
powerpc platforms and we want to get rid of it use CONFIG_PPC instead.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: David Brownell <david-b@pacbell.net>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:40 -07:00
Dennis Aberilla
2f9b75e09e rtc: add device driver for Dallas DS3234 SPI RTC chip
Add support for the Dallas DS3234 chip - extremely accurate SPI bus RTC
with integrated crystal and SRAM.

[akpm@linux-foundation.org: don't use BIN2BCD/BCD2BIN]
Signed-off-by: Dennis Aberilla <denzzzhome@yahoo.com>
Signed-off-by: Alessandro Zummo <a.zummo@towertech.it>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:39 -07:00
Thomas Bogendoerfer
d1dbd82e2f RTC: M48T35: new RTC driver
This driver replaces the broken ip27-rtc driver in drivers/char and
gives back RTC support for SGI IP27 machines.

Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Acked-by: Alessandro Zummo <alessandro.zummo@towertech.it>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-15 12:46:51 +01:00
Thomas Bogendoerfer
5f119f2906 MIPS: DS1286: New RTC driver
This driver replaces the broken DS1286 driver in drivers/char and gives back
RTC support for SGI IP22 and IP28 machines.

Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Acked-by: Alessandro Zummo <alessandro.zummo@towertech.it>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-15 12:46:51 +01:00
Kyle McMartin
9eb1686423 parisc: add rtc platform driver
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
2008-10-10 16:32:30 +00:00
Andrew Morton
5ec877083c drivers/rtc/Kconfig: don't build rtc-cmos.o on sparc32
Fix for linux-next's

: Author: David S. Miller <davem@davemloft.net>  2008-08-28 19:54:17
: Committer: David S. Miller <davem@davemloft.net>  2008-08-29 14:16:45
: Parent: 7f60459921 (Blackfin RTC Driver: BF561 not have on-chip RTC)
: Child:  cca4c23102 (rtc: Add TI BQ4802 RTC driver.)
: Branches: git-alsa-tiwai, linux-next
: Follows: v2.6.27-rc4
: Precedes: next-20080902
: 
:     rtc: Allow RTC_DRV_CMOS to be used on SPARC.


In file included from drivers/rtc/rtc-cmos.c:40:
include/asm-generic/rtc.h: In function 'rtc_is_updating':
include/asm-generic/rtc.h:40: error: 'rtc_port' undeclared (first use in this function)
include/asm-generic/rtc.h:40: error: (Each undeclared identifier is reported only once
include/asm-generic/rtc.h:40: error: for each function it appears in.)
include/asm-generic/rtc.h: In function 'get_rtc_time':
include/asm-generic/rtc.h:73: error: 'rtc_port' undeclared (first use in this function)
include/asm-generic/rtc.h: In function 'set_rtc_time':
include/asm-generic/rtc.h:160: error: 'rtc_port' undeclared (first use in this function)
drivers/rtc/rtc-cmos.c: In function 'cmos_read_alarm':
drivers/rtc/rtc-cmos.c:193: error: 'rtc_port' undeclared (first use in this function)
drivers/rtc/rtc-cmos.c: In function 'cmos_checkintr':
drivers/rtc/rtc-cmos.c:255: error: 'rtc_port' undeclared (first use in this function)
drivers/rtc/rtc-cmos.c: In function 'cmos_irq_enable':
drivers/rtc/rtc-cmos.c:272: error: 'rtc_port' undeclared (first use in this function)
drivers/rtc/rtc-cmos.c: In function 'cmos_irq_disable':
drivers/rtc/rtc-cmos.c:292: error: 'rtc_port' undeclared (first use in this function)
drivers/rtc/rtc-cmos.c: In function 'cmos_set_alarm':
drivers/rtc/rtc-cmos.c:337: error: 'rtc_port' undeclared (first use in this function)
drivers/rtc/rtc-cmos.c: In function 'cmos_irq_set_freq':
drivers/rtc/rtc-cmos.c:378: error: 'rtc_port' undeclared (first use in this function)
drivers/rtc/rtc-cmos.c: In function 'cmos_procfs':
drivers/rtc/rtc-cmos.c:455: error: 'rtc_port' undeclared (first use in this function)
drivers/rtc/rtc-cmos.c: In function 'cmos_nvram_read':
drivers/rtc/rtc-cmos.c:519: error: 'rtc_port' undeclared (first use in this function)
drivers/rtc/rtc-cmos.c: In function 'cmos_nvram_write':
drivers/rtc/rtc-cmos.c:551: error: 'rtc_port' undeclared (first use in this function)
drivers/rtc/rtc-cmos.c: In function 'cmos_interrupt':
drivers/rtc/rtc-cmos.c:588: error: 'rtc_port' undeclared (first use in this function)
drivers/rtc/rtc-cmos.c: In function 'cmos_do_probe':
drivers/rtc/rtc-cmos.c:722: error: 'rtc_port' undeclared (first use in this function)

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-22 21:40:04 -07:00
Krzysztof Helt
94fe7424a4 rtc-m48t59: add support for M48T02 and M48T59 chips
Add support for two compatible RTC:
- M48T08 which does not have alarm part,
- M48T08 which does not have alarm part and has
  only 2KB of NVRAM

These types covers all Mostek's RTC used in Sun UltraSparc workstations.

Tested on Sun Ultra60 with M48T59 RTC.

Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-03 15:39:11 -07:00
David S. Miller
de2cf332b7 rtc: Add Starfire platform RTC driver.
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-29 14:16:52 -07:00
David S. Miller
7a138ede55 rtc: Add Sun4V hypervisor RTC driver.
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-29 14:16:50 -07:00
David S. Miller
cca4c23102 rtc: Add TI BQ4802 RTC driver.
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-29 14:16:49 -07:00
David S. Miller
582defd8dd rtc: Allow RTC_DRV_CMOS to be used on SPARC.
Add Sparc to the Kconfig depends list.

Add __sparc___ to address_sparc = 128 ifdef.

Finally, don't be concerned about 24-hour BCD mode support if the RTC
doesn't have a valid IRQ.  We won't even use the alarm code in this
case and the Sparc RTCs have this limitation.

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-29 14:16:45 -07:00
Graf Yang
7f60459921 Blackfin RTC Driver: BF561 not have on-chip RTC
Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-20 15:40:30 -07:00
David Brownell
53e84b672c rtc: ds1305/ds1306 driver
Support the Dallas/Maxim DS1305 and DS1306 RTC chips.  These use SPI, and
support alarms, NVRAM, and a trickle charger for use when their backup
power supply is a supercap or rechargeable cell.

This basic driver doesn't yet support suspend/resume or wakealarms.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-24 10:47:33 -07:00
Kim B. Heino
8fc2c767b0 rtc: add support for ST M41T94 SPI RTC
This patch adds kernel driver for M41T94 RTC chip connected via SPI.
I've tested it on two different AT91-based hardwares.

This is third revision of the patch: some comments made by
Alessandro Zummo fixed.

Revision two added support for century bit and fixes.

Signed-off-by: Kim B. Heino <Kim.Heino@bluegiga.com>
Signed-off-by: Alessandro Zummo <a.zummo@towertech.it>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-24 10:47:33 -07:00
Russell King
a177ba3b7a Merge branches 'at91', 'dyntick', 'ep93xx', 'iop', 'ixp', 'misc', 'orion', 'omap-reviewed', 'rpc', 'rtc' and 's3c' into devel 2008-07-10 16:38:50 +01:00
Sergey Lapin
c6d8f400cc rtc: Ramtron FM3130 RTC support
Ramtron FM3130 is a chip with two separate devices inside, RTC clock and
FRAM.  This driver provides only RTC functionality.

This chip is met in lots of custom boards with AT91SAMXXXX CPU I work
with, is cheap and in no way better or worse than any other RTC on market.
 While it is mostly met on much smaller devices, I think it is great to
have it supported in Linux.

Signed-off-by: Sergey Lapin <slapin@ossfans.org>
Signed-off-by: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-06-12 18:05:42 -07:00
David Woodhouse
aabe188565 rtc: class driver for ppc_md RTC functions
This hooks up the platform-specific [gs]et_rtc_time functions so that
kernels using CONFIG_RTC_CLASS have RTC support on most PowerPC platforms.

A new driver, and one which we've been shipping in Fedora for a while
already, since otherwise RTC support breaks.

[akpm@linux-foundation.org: fix Kconfig indenting]
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Acked-by: Alessandro Zummo <a.zummo@towertech.it>
Acked-by: David Brownell <david-b@pacbell.net>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-06-06 11:29:13 -07:00
Stelian Pop
6b71dbf65e [ARM] 4935/1: AT91CAP9: enable RTC-on-RTT in defconfig.
Update the help text for RTC_DRV_AT91SAM9 to mention that the
option apply to AT91CAP9 processors too, and enable it in the
defconfig.

Signed-off-by: Stelian Pop <stelian@popies.net>
Signed-off-by: Andrew Victor <linux@maxim.org.za>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-06-02 15:08:11 +01:00
Russell King
a190901c6b [RTC] rtc-pl030: add driver, remove old non-rtc lib driver
Convert Integrator PL030 RTC driver to use the RTC class interfaces.

Acked-by: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-05-22 14:56:38 +01:00
David Brownell
c750090085 rtc: avoid legacy drivers with generic framework
Kconfig tweaks to help reduce RTC configuration bugs, by avoiding
legacy RTC drivers when the generic RTC framework is enabled:

 - If rtc-cmos is selected, disable the legacy rtc driver;

 - When using generic RTC on x86, enable rtc-cmos by default;

 - In the old "chardev RTC" section of Kconfig, add a comment
   warning people off these (seven) legacy RTC drivers when
   the generic framework is in use.

People can still use the legacy drivers if they want (or need) to.

This doesn't fix the broken dependencies for the legacy "CMOS" RTC driver.
Ideally it would be a full list of platforms where it works, not a partial
list of ones where it won't.  Or better yet, it would depend on a
"HAVE_CMOS_RTC" flag defined by various platforms ...  surely there's a
Kconfig style guideline lurking there.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Acked-by: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-28 08:58:16 -07:00
Randy Dunlap
d479540dba rtc: rtc-s35390a.c needs the bitreverse library
rtc-s35390a uses BITREVERSE functions so it needs to select that config symbol
to ensure that the functions are built.

  drivers/built-in.o: In function `s35390a_set_datetime':
  linux-2.6.25-rc8-git7/drivers/rtc/rtc-s35390a.c:144: undefined reference to `byte_rev_table'
  drivers/built-in.o: In function `s35390a_get_datetime':
  linux-2.6.25-rc8-git7/drivers/rtc/rtc-s35390a.c:163: undefined reference to `byte_rev_table'

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Acked-by: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-11 08:06:43 -07:00
Alessandro Zummo
44e0451db0 rtc: fix kconfig help
Signed-off-by: Alessandro Zummo <a.zummo@towertech.it>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-03-19 18:53:36 -07:00
Byron Bradley
c46288b09e rtc: add support for the S-35390A RTC chip
This adds basic get/set time support for the Seiko Instruments S-35390A.
This chip communicates using I2C and is used on the QNAP TS-109/TS-209 NAS
devices.

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Byron Bradley <byron.bbradley@gmail.com>
Acked-by: Jean Delvare <khali@linux-fr.org>
Acked-by: David Brownell <david-b@pacbell.net>
Tested-by: Tim Ellis <tim@ngndg.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-03-04 16:35:09 -08:00
David Brownell
4cdf854f7d rtc: at91sam9 RTC support (RTT and/or RTC)
AT91sam9 RTC support, primarily in the form of an RTT-as-RTC driver that was
extracted from 2.6.23-at91 patch and updated:

 - Relies on now-merged platform updates, which associate the RTT
   hardware address with each RTT and use the "at91_rtt" name.

 - RTC framework related fixes and cleanups, notably:
    * removed now-needless suspend/resume clock offset logic
    * alarm read/write now respects the "enabled" flag
    * suspend always disables update irqs
    * shutdown (and startup) disables all irqs

 - Misc cleanup:
    * use dev_*() messaging
    * add comments
    * remove globals,
    * ... etc

 - Don't force use of RTT0 and GPBR0.  Either resource may need
   to be used for other purposes (like NO_HZ support).

 - Update "AT91RM9200 RTC" Kconfig to allow it on SAM9RL chips
   (it has both RTT and RTC).

Driver binding uses bus_find_device() to avoid needing any kind of "timer
library" code when there's more than one RTT module.  (This timer can be used
as an RTC, to support NO_HZ operation, or potentially for other stuff.  The
choice is a per-system policy.)

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: Michel Benoit <murpme@gmail.com>
Cc: Nicolas Ferre <nicolas.ferre@rfo.atmel.com>
Cc: Andrew Victor <linux@maxim.org.za>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-06 10:41:14 -08:00