Add Kconfig options so that the RTC can be used in SPL and TPL. This is
helpful for accessing the contents of CMOS RAM, for example.
Signed-off-by: Simon Glass <sjg@chromium.org>
Our implementation of rtc_to_tm() cannot handle dates of more than
0x7fffffff seconds after 1970-01-01.
Adopt the Linux kernel implementation.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from. So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry. Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.
In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.
This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents. There's also a few places where I found we did not have a tag
and have introduced one.
Signed-off-by: Tom Rini <trini@konsulko.com>
Add a new driver for RX8010SJ rtc chip. The driver implements both
formats of U-Boot driver model.
Signed-off-by: Nandor Han <nandor.han@ge.com>
Signed-off-by: Martyn Welch <martyn.welch@collabora.co.uk>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Add support for S35392A RTC. The driver supports both U-Boot driver
models.
Signed-off-by: Nandor Han <nandor.han@ge.com>
Signed-off-by: Martyn Welch <martyn.welch@collabora.co.uk>
Cc: Heiko Schocher <hs@denx.de>
There was for long time no activity in the mpx5xxx area.
We need to go further and convert to Kconfig, but it
turned out, nobody is interested anymore in mpc5xxx,
so remove it.
Signed-off-by: Heiko Schocher <hs@denx.de>
There was for long time no activity in the 8xx area.
We need to go further and convert to Kconfig, but it
turned out, nobody is interested anymore in 8xx,
so remove it (with a heavy heart, knowing that I remove
here the root of U-Boot).
Signed-off-by: Heiko Schocher <hs@denx.de>
This subsystem has not been converted to driver model, there is only one
driver and only one board that uses it. Drop it and its CONFIG option.
Also drop the rtc4543 RTC driver since it uses TWS.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
These drivers have no user since commit ea3310e8aa ("Blackfin:
Remove").
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Acked-by: Michal Simek <michal.simek@xilinx.com>
Acked-by: Jaehoon Chung <jh80.chung@samsung.com>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
Simon Glass
Heinrich Schuchardt
Tom Rini
Nandor Han
Heiko Schocher
Masahiro Yamada
Meng Yi
Andy Fleming
Masahiro Yamada
Markus Niebel
Wolfgang Denk
trem
Benoît Thébaudeau
Kenth Eriksson
Marek Vasut
Fabio Estevam
Jason Cooper
Priyanka Jain
Sebastien Carlier
Reinhard Meyer
Po-Yu Chuang
Albin Tonnerre
Detlev Zundel
Jean-Christophe PLAGNIOL-VILLARD
Stefan Roese
Gururaja Hebbar K R
Michal Simek
Guennadi Liakhovetski
Tor Krill
Mike Frysinger
Matthias Fuchs
Larry Johnson