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The code is from Adrian Cox, and is patterned after similar
support in Linux (drivers/rtc/rtc-ds1307.c:1121-1135). This
chip is used on the Cyrus board from Varisys.
Signed-off-by: Andy Fleming <afleming@gmail.com>
Reviewed-by: York Sun <yorksun@freescale.com>
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Enable real-time-clock support in sandbox.
Signed-off-by: Simon Glass <sjg@chromium.org>
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Add a driver which communicates with the sandbox I2C emulation RTC device
and permits it to be used in U-Boot. This driver is very simple - it just
reads and writes selected I2C registers in the device.
Signed-off-by: Simon Glass <sjg@chromium.org>
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Add a sandbox I2C emulation device which emulates a real-time clock. The
clock works off an offset from the current system time, and supports setting
and getting the clock, as well as access to byte-width regisers in the RTC.
It does not support changing the system time.
This device can be used for testing the 'date' command on sandbox, as well
as the RTC uclass.
Signed-off-by: Simon Glass <sjg@chromium.org>
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Add a uclass for real-time clocks which support getting the current time,
setting it and resetting the chip to a known-working state. Some RTCs have
additional registers which can be used to store settings, so also provide
an interface to these.
Signed-off-by: Simon Glass <sjg@chromium.org>
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These boards are still non-generic boards.
drivers/rtc/ds12887.c should also be removed because it can not
be built without CONFIG_ATC.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Cc: Wolfgang Denk <wd@denx.de>
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Signed-off-by: Markus Niebel <Markus.Niebel@tq-group.com>
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Now we are ready to switch over to real Kbuild.
This commit disables temporary scripts:
scripts/{Makefile.build.tmp, Makefile.host.tmp}
and enables real Kbuild scripts:
scripts/{Makefile.build,Makefile.host,Makefile.lib}.
This switch is triggered by the line in scripts/Kbuild.include
-build := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.build.tmp obj
+build := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.build obj
We need to adjust some build scripts for U-Boot.
But smaller amount of modification is preferable.
Additionally, we need to fix compiler flags which are
locally added or removed.
In Kbuild, it is not allowed to change CFLAGS locally.
Instead, ccflags-y, asflags-y, cppflags-y,
CFLAGS_$(basetarget).o, CFLAGS_REMOVE_$(basetarget).o
are prepared for that purpose.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Tested-by: Gerhard Sittig <gsi@denx.de>
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Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
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Since commit 5dc5f36 removed B2 board support,
there are no boards enabling s3c44b0_rtc.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Cc: Wolfgang Denk <wd@denx.de>
Cc: Andrea Scian <andrea.scian@dave-tech.it>
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Signed-off-by: Wolfgang Denk <wd@denx.de>
[trini: Fixup common/cmd_io.c]
Signed-off-by: Tom Rini <trini@ti.com>
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This driver has been tested on board armadeus apf27.
Signed-off-by: Philippe Reynes <tremyfr@yahoo.fr>
Acked-by: Stefano Babic <sbabic@denx.de>
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Add support for Freescale's i.MX DryIce RTC, present on i.MX25.
Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Cc: Wolfgang Denk <wd@denx.de>
Cc: Stefano Babic <sbabic@denx.de>
Acked-by: Stefano Babic <sbabic@denx.de>
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Support for DS1388 is added by extending the DS1337 driver. DS1388 is
similar to DS1337. The time registers are offset by 1 (due to support
for hundreds of seconds), and there is no century bit.
The configuration and trickle charge registers are also different.
Tested on hardware with Freescale P2010 and DS1388.
Signed-off-by: Kenth Eriksson <kenth.eriksson@transmode.com>
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Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Wolfgang Denk <wd@denx.de>
Cc: Detlev Zundel <dzu@denx.de>
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Rename mc13783-rtc so that it can be used for both MC13783 and MC13892 PMICs.
efikamx board, for example, does use a MC13892 PMIC, but the RTC selection is currently made as:
#define CONFIG_RTC_MC13783
,which is not very obvious.
Let the MC13783 and MC13892 RTC be selected by:
#define CONFIG_RTC_MC13XXX
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Stefano Babic <sbabic@denx.de>
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Signed-off-by: Heiko Schocher <hs@denx.de>
Cc: Paulraj Sandeep <s-paulraj@ti.com>
Cc: Albert ARIBAUD <albert.u.boot@aribaud.net>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
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This driver can be used for kirkwood SoCs by enabling CONFIG_RTC_MV. Tested on
Global Scale Technologies Dreamplug.
Signed-off-by: Jason Cooper <u-boot@lakedaemon.net>
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Signed-off-by: Heiko Schocher <hs@denx.de>
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PT7C4338 chip is being manufactured by Pericom Technology Inc.
It is a serial real-time clock which provides:
1)Low-power clock/calendar.
2)Programmable square-wave output.
It has 56 bytes of nonvolatile RAM.
Signed-off-by: Priyanka Jain <Priyanka.Jain@freescale.com>
Acked-by: Timur Tabi <timur@freescale.com>
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Before this commit, weak symbols were not overridden by non-weak symbols
found in archive libraries when linking with recent versions of
binutils. As stated in the System V ABI, "the link editor does not
extract archive members to resolve undefined weak symbols".
This commit changes all Makefiles to use partial linking (ld -r) instead
of creating library archives, which forces all symbols to participate in
linking, allowing non-weak symbols to override weak symbols as intended.
This approach is also used by Linux, from which the gmake function
cmd_link_o_target (defined in config.mk and used in all Makefiles) is
inspired.
The name of each former library archive is preserved except for
extensions which change from ".a" to ".o". This commit updates
references accordingly where needed, in particular in some linker
scripts.
This commit reveals board configurations that exclude some features but
include source files that depend these disabled features in the build,
resulting in undefined symbols. Known such cases include:
- disabling CMD_NET but not CMD_NFS;
- enabling CONFIG_OF_LIBFDT but not CONFIG_QE.
Signed-off-by: Sebastien Carlier <sebastien.carlier@gmail.com>
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Signed-off-by: Reinhard Meyer <u-boot@emk-elektronik.de>
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Signed-off-by: Po-Yu Chuang <ratbert@faraday-tech.com>
Edited commit message.
Signed-off-by: Wolfgang Denk <wd@denx.de>
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This RTC is used in some Calao boards. The driver code is taken from
the linux rtc-m41t94 driver
Signed-off-by: Albin Tonnerre <albin.tonnerre@free-electrons.com>
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Signed-off-by: Detlev Zundel <dzu@denx.de>
Signed-off-by: Andreas Pfefferle <ap@denx.de>
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Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
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Several source files need to be compiled and linked when one or more
config options are selected. To allow for easy selection in the
Makefiles yet to avoild multiple compilation (which costs build time)
and especially multiple linking (which causes errors), we use
"COBJS = $(sort COBJS-y)" which eliminates duplicates.
By courtesy of Detlev Zundel who suggested this approach.
Signed-off-by: Wolfgang Denk <wd@denx.de>
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This "||" doesn't seem to work. Now using the idea suggest by Scott Wood
to combine both config options into one line. This even allows defining
both options and not generating the target object twice.
Signed-off-by: Stefan Roese <sr@denx.de>
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Signed-off-by: Gururaja Hebbar K R <gururajakr@sanyo.co.in>
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Signed-off-by: Michal Simek <monstr@monstr.eu>
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MC13783 is a multifunction IS with an SPI interface to the host. This
driver handles the RTC controller in this chip.
Signed-off-by: Guennadi Liakhovetski <lg@denx.de>
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Signed-off-by: Stefan Roese <sr@denx.de>
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Conflicts:
drivers/rtc/Makefile
Signed-off-by: Wolfgang Denk <wd@denx.de>
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Signed-off-by: Wolfgang Denk <wd@denx.de>
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Signed-off-by: Tor Krill <tor@excito.com>
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This patch add support for the STM M41T62 RTC. It is used and tested
on the AMCC Canyonlands 406EX platform.
Signed-off-by: Stefan Roese <sr@denx.de>
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Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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Signed-off-by: Matthias Fuchs <matthias.fuchs@esd-electronics.com>
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This driver is based on the driver for the M41T11. In the intended
application, the RTC will be powered by a large capacitor, rather than a
battery. The driver therefore checks to see whether the RTC has lost
power. The chip's OUT bit is normally reset from its power-up state. If
the OUT bit is read as set, or if the date and time are not valid, then the
RTC is assumed to have lost power, and its date and time are reset to
1900-01-01 00:00:00.
Support for adjusting the speed of the clock to improve accuracy is
provided through an environment variable.
Signed-off-by: Larry Johnson <lrj@acm.org>
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Conflicts:
drivers/rtc/Makefile
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Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
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