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path: root/drivers/rtc/ds1307.c
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2024-07-22drivers: rtc: Remove duplicate newlinesMarek Vasut
Drop all duplicate newlines. No functional change. Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
2024-05-20Restore patch series "arm: dts: am62-beagleplay: Fix Beagleplay Ethernet"Tom Rini
As part of bringing the master branch back in to next, we need to allow for all of these changes to exist here. Reported-by: Jonas Karlman <jonas@kwiboo.se> Signed-off-by: Tom Rini <trini@konsulko.com>
2024-05-19Revert "Merge patch series "arm: dts: am62-beagleplay: Fix Beagleplay Ethernet""Tom Rini
When bringing in the series 'arm: dts: am62-beagleplay: Fix Beagleplay Ethernet"' I failed to notice that b4 noticed it was based on next and so took that as the base commit and merged that part of next to master. This reverts commit c8ffd1356d42223cbb8c86280a083cc3c93e6426, reversing changes made to 2ee6f3a5f7550de3599faef9704e166e5dcace35. Reported-by: Jonas Karlman <jonas@kwiboo.se> Signed-off-by: Tom Rini <trini@konsulko.com>
2024-05-07rtc: Remove <common.h> and add needed includesTom Rini
Remove <common.h> from this driver directory and when needed add missing include files directly. Signed-off-by: Tom Rini <trini@konsulko.com>
2022-12-05global: Move remaining CONFIG_SYS_* to CFG_SYS_*Tom Rini
The rest of the unmigrated CONFIG symbols in the CONFIG_SYS namespace do not easily transition to Kconfig. In many cases they likely should come from the device tree instead. Move these out of CONFIG namespace and in to CFG namespace. Signed-off-by: Tom Rini <trini@konsulko.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2022-02-17rtc: ds1307: Add bindings for microchip, mcp7940xPali Rohár
Compatible string microchip,mcp7940x is used by Turris Mox DTS file in Linux kernel and U-Boot ds1307.c driver works fine with it. Signed-off-by: Pali Rohár <pali@kernel.org> Reviewed-by: Stefan Roese <sr@denx.de>
2021-10-12rtc: ds1307: Handle oscillator-stop bit correctlyMark Tomlinson
The DS1307 driver was originally based on the DS1337 driver. However, the functionality of the clock set/get functions has diverged. In the original DS1337 driver, the set/get functions did the following: 1) Setting the clock ensured the oscillator was enabled. 2) Getting the clock checked and reset the oscillator-stop flag. The DS1307 does not have an oscillator-stop flag, but the driver tried (incorrectly) to emulate this by ensuring the oscillator was running. It really makes no sense to start a stopped clock without setting it. This patch makes the DS1307 driver behave like the original DS1337 driver again. For the DS1307 itself, this is just a removal of code, since there is no oscillator-fail bit to check or reset, and the clock is started when it is set. Since the DS1307 driver can now also be used for the DS1337 and DS1340 which do have this bit, add code to handle the oscillator-stop bit in the same was the original DS1337 driver did -- i.e. report that the oscillator had stopped and clear the flag. This means that setting the date using the date command (which does both a get and a set) will now clear the oscillator-stop flag in addition to setting and starting the clock. The old-style (non-DM) code has not been updated and will be removed in a future patch. Note that this older code does not support the DS1337, as there is a separate driver for this. Also note that the original (DM) code used the wrong control-register address for the DS1337. Signed-off-by: Mark Tomlinson <mark.tomlinson@alliedtelesis.co.nz>
2021-09-01rtc: ds1307: Fix incorrect clock reset for DS13xxCallum Sinclair
The ds1307 driver also supports the DS1339 and DS1340. However, in ds1307_rtc_reset the register writes assume that the chip is a DS1307. This is evident in the writing of bits SQWE, RS1, RS0 to the control register. While this applies correctly to the DS1307, on a DS1340 the control register doesn't contain those bits (instead, the register is used for clock calibration). By writing these bits the clock calibration will be changed and the chip can become non-functional after a reset call. Signed-off-by: Callum Sinclair <callum.sinclair@alliedtelesis.co.nz>
2021-03-23rtc: ds1307: Add ds1339 compatibleChris Packham
As far as u-boot is concerned the ds1339 is compatible with the other devices supported by the ds1307 driver. The Linux driver does expose some additional functionality but as far as u-boot is concerned just adding the compatible string is enough. Signed-off-by: Chris Packham <judge.packham@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
2020-05-18common: Drop log.h from common headerSimon Glass
Move this header out of the common header. Signed-off-by: Simon Glass <sjg@chromium.org>
2019-07-13rtc: ds1307: add support for m41t11Heiko Schocher
add m41t11 support in ds1307 driver. changes: - add compatible string for m41t11 - check if RTC clock is running, if not enable the clock Signed-off-by: Heiko Schocher <hs@denx.de>
2018-07-25rtc: remove CONFIG_CMD_DATE dependencyHeinrich Schuchardt
The EFI subsystem accesses the real time clock and is enabled by default. So we should drop any CONFIG_CMD_DATE dependency from the real time clock drivers. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2018-05-07SPDX: Convert all of our single license tags to Linux Kernel styleTom Rini
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>
2018-04-06rtc: ds1307: remove redundant code in rtc_resetChris Packham
As of commit 1a1fa2406689 ("rtc: Set valid date after reset") the command "date reset" will set the date/time to 2000-01-01 0:00:00 after calling rtc_reset(). This means that the ds1307 implementation of rtc_reset() doesn't need to call rtc_set(). Signed-off-by: Chris Packham <judge.packham@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2017-05-08rtc: Add DM support to ds1307Chris Packham
Add an implementation of the ds1307 driver that uses the driver model i2c APIs. Signed-off-by: Chris Packham <judge.packham@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2015-11-04rtc: Add MCP79411 support to DS1307 rtc driverAndy Fleming
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>
2014-08-14RTC: add support for DS1339 (using DS1307 driver)Markus Niebel
Signed-off-by: Markus Niebel <Markus.Niebel@tq-group.com>
2013-07-24Add GPL-2.0+ SPDX-License-Identifier to source filesWolfgang Denk
Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
2009-08-25Switch from per-driver to common definition of bin2bcd and bcd2binAlbin Tonnerre
Signed-off-by: Albin Tonnerre <albin.tonnerre@free-electrons.com> Acked-by: Stefan Roese <sr@denx.de>
2008-10-18rename CFG_ macros to CONFIG_SYSJean-Christophe PLAGNIOL-VILLARD
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
2008-09-07rtc: allow rtc_set to return an error and use it in cmd_dateJean-Christophe PLAGNIOL-VILLARD
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
2008-08-18rtc: Clean drivers/rtc/MakefileMichal Simek
Signed-off-by: Michal Simek <monstr@monstr.eu>
2008-03-20LWMON5: POST RTC fixYuri Tikhonov
Modify the RTC API to provide one a status for the time reported by the rtc_get() function: 0 - a reliable time is guaranteed, < 0 - a reliable time isn't guaranteed (power fault, clock issues, and so on). The RTC chip drivers are responsible for providing this info if the corresponding chip supports such functionality. If not - always report that the time is reliable. The POST RTC test was modified to detect the RTC faults utilizing this new rtc_get() feature. Signed-off-by: Yuri Tikhonov <yur@emcraft.com>
2007-11-25drivers/rtc : move rtc drivers to drivers/rtcJean-Christophe PLAGNIOL-VILLARD
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>