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path: root/drivers/rtc/Kconfig
AgeCommit message (Collapse)Author
2025-11-28drivers: rtc: add RV3032 supportMichael Walle
Add support for the Microcrystal RV3032 RTC. Signed-off-by: Michael Walle <mwalle@kernel.org>
2025-11-28drivers: rtc: add PCF85063 supportMichael Walle
Add support for the Microcrystal RV8263 and compatible RTCs. The driver's name was taken from linux. It should work with any NXP PCF85063 compatible RTCs. It was tested with a RV8263. Signed-off-by: Michael Walle <mwalle@kernel.org>
2025-11-28drivers: rtc: convert tristate to boolMichael Walle
As u-boot doesn't have any loadable modules, tristate doesn't make sense. Convert it to bool. Signed-off-by: Michael Walle <mwalle@kernel.org> Reviewed-by: Tom Rini <trini@konsulko.com>
2025-08-14rtc: Tighten some rtc driver dependenciesTom Rini
The Marvell RTC rtc driver cannot build without access to some platform specific header files. Express that requirements in Kconfig as well. Signed-off-by: Tom Rini <trini@konsulko.com>
2025-06-25rtc: add ds1672 driverTim Harvey
Add support for Dallas/Maxim ds1672 32bit counter RTC. Signed-off-by: Tim Harvey <tharvey@gateworks.com>
2025-01-14rtc: zynqmp: allow on Versal architecturesVincent Fazio
Allow the ZyncMP RTC driver to be enabled on Versal architectures. Also, require DM_RTC since the driver uses the RTC driver model. Signed-off-by: Vincent Fazio <vfazio@xes-inc.com> Link: https://lore.kernel.org/r/20250114135812.2605618-1-vfazio@xes-inc.com Signed-off-by: Michal Simek <michal.simek@amd.com>
2024-12-06rtc: CONFIGS_RTC_PL031 must depend on CONFIGS_DM_RTCHeinrich Schuchardt
Building qemu_arm64_defconfig with CONFIGS_DM_RTC=n and CONFIGS_RTC_PL031=y leads to a build failure. Adjust the vexpress64 configuration to avoid circular dependency. Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2024-01-17rtc: driver for Goldfish RTCHeinrich Schuchardt
The Goldfish RTC is a virtual device which may be supplied by QEMU. It is enabled by default on QEMU's RISC-V virt machine. Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2023-03-30drivers: rtc: add max313xx series rtc driverChris Packham
Adding support for Analog Devices MAX313XX series RTCs. This is ported from the Linux driver and adapted for use in u-boot. Notable differences are - handling of tm_year and tm_mon differ - clock source support is omitted - hwmon support for the MAX31328 and MAX31343 is omitted - rtc_ops->reset is added Signed-off-by: Chris Packham <judge.packham@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2023-03-02sandbox: Tidy up RTC optionsSimon Glass
At present we enable the sandbox RTC driver for all builds. Add a separate Kconfig option to control this, so that it can be disabled in TPL, where it is not needed. Signed-off-by: Simon Glass <sjg@chromium.org>
2023-01-02rtc: add ht1380 driverSergei Antonov
Support Holtek HT1380/HT1381 Serial Timekeeper Chip. It provides seconds , minutes, hours, day of the week, date, month and year information. Datasheet: https://www.holtek.com.tw/documents/10179/11842/ht1380_1v130.pdf Signed-off-by: Sergei Antonov <saproj@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2022-12-05Convert CONFIG_RTC_DS1337 et al to KconfigTom Rini
This converts the following to Kconfig: CONFIG_RTC_DS1337 CONFIG_RTC_DS1337_NOOSC CONFIG_RTC_DS1338 CONFIG_RTC_DS1374 CONFIG_RTC_DS3231 CONFIG_RTC_MC13XXX CONFIG_RTC_MXS CONFIG_RTC_PT7C4338 Signed-off-by: Tom Rini <trini@konsulko.com>
2022-05-02vpl: Add Kconfig options for VPLSimon Glass
Add VPL versions of commonly used Kconfig options. Signed-off-by: Simon Glass <sjg@chromium.org>
2022-04-01Convert CONFIG_MCFRTC et al to KconfigTom Rini
This converts the following to Kconfig: CONFIG_MCFRTC CONFIG_SYS_MCFRTC_BASE While at it, remove '#undef RTC_DEBUG' from these config files. Signed-off-by: Tom Rini <trini@konsulko.com>
2021-10-03rtc: rx8025: drop non-DM supportMathew McBride
A search of the tree showed there is only one user of this driver (soon to be two) - board/socrates The second user will be the Traverse Ten64 board. Both these boards have DM_RTC. Signed-off-by: Mathew McBride <matt@traverse.com.au>
2021-08-06rtc: zynqmp: Add support for ZynqMP RTCMichal Simek
The whole driver logic is taken from Linux kernel but only set/get/reset functions are implemented. When device is power off RTC is power out of battery. Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2021-06-09rtc: davinci: enable compilation for omap architecturesDario Binacchi
The Davinci's onchip RTC is also present on TI OMAP1, AM33XX, AM43XX and DRA7XX SOCs. So, let's enable compilation for these architectures too. Signed-off-by: Dario Binacchi <dariobin@libero.it> Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com> Link: https://lore.kernel.org/r/20210602203805.11494-2-dariobin@libero.it
2021-04-12rtc: add support for rv3028 rtcHeiko Schocher
Add support for rtc3028 rtc from microcrystal. based on linux dirver: commit a38fd8748464: ("Linux 5.12-rc2") Signed-off-by: Heiko Schocher <hs@denx.de> Reviewed-by: Stefan Roese <sr@denx.de>
2021-04-08rtc: add armada38x driverMarek Behún
Add RTC driver for Armada 38x, based on Linux' driver. For now implement only `marvell,armada-380-rtc` compatible. Signed-off-by: Marek Behún <marek.behun@nic.cz> Reviewed-by: Stefan Roese <sr@denx.de> Cc: Pali Rohár <pali@kernel.org> Cc: Baruch Siach <baruch@tkos.co.il> Cc: Chris Packham <judge.packham@gmail.com> Cc: Simon Glass <sjg@chromium.org> Acked-by: Pali Rohár <pali@kernel.org>
2021-01-27rtc: add rtc-abx80x, a driver for the Abracon AB x80x i2c rtcYing-Chun Liu (PaulLiu)
This is a basic driver for the ultra-low-power Abracon AB x80x series of RTC chips. It supports in particular, the supersets AB0805 and AB1805. It allows reading and writing the time, and enables the supercapacitor or battery charger. Signed-off-by: Ying-Chun Liu (PaulLiu) <paul.liu@linaro.org>
2020-10-30rtc: initialize emulated RTC from environment variableHeinrich Schuchardt
Up to now the emulated RTC is initialized using the U-Boot build time. With this patch the environment variable 'rtc_emul_epoch' can be used to provide a better initial time. The variable is a decimal string with the number of seconds since 1970-01-01. Here is an example where the RTC had not been probed yet: => setenv rtc_emul_epoch 1610109000 => date Date: 2021-01-08 (Friday) Time: 12:30:00 If the variable does not exist, the U-Boot build time is used as fallback. The environment variable may be set when shutting down the operating system if the U-Boot environment is exposed to the OS (cf. ENV_IS_IN_FAT and ENV_IS_IN_EXT4). Suggested-by: Pablo Sebastián Greco <pgreco@centosproject.org> Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2020-10-27rtc: provide an emulated RTCHeinrich Schuchardt
On a board without hardware clock this software real time clock can be used. The build time is used to initialize the RTC. So you will have to adjust the time either manually using the 'date' command or use the 'sntp' to update the RTC with the time from a network time server. See CONFIG_CMD_SNTP and CONFIG_BOOTP_NTPSERVER. The RTC time is advanced according to CPU ticks. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2020-10-22rtc: move pcf8563 to KconfigHeiko Schocher
add Kconfig option for pcf8563 driver and run tools/moveconfig.py Signed-off-by: Heiko Schocher <hs@denx.de> Reviewed-by: Stefan Roese <sr@denx.de>
2020-01-10rtc: add support for DS3232 deviceHan Nandor
DS3232 is an i2c RTC with 236 bytes of battery-backed SRAM. Add an RTC driver for DS3232 device, which provides time and date support. Also read and write functions are provided, which can be used to access the SRAM memory. Signed-off-by: Nandor Han <nandor.han@vaisala.com>
2019-12-06rtc: move date.c from drivers/rtc/ to lib/AKASHI Takahiro
In the next commit, rtc_mktime(), for compatibility with linux, will be implemented using rtc_mktime(), which is no longer drivers/rtc specific. So move this file under lib/. Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
2019-08-22rtc: ds3232/ds3231: Add support to generate 32KHz output for driver moduleChuanhua Han
Add an implementation of the rtc_enable_32khz_output() that uses the driver model i2c APIs. Also put code related to rtc_enable_32khz_output under CONFIG_RTC_ENABLE_32KHZ_OUTPUT. Signed-off-by: Chuanhua Han <chuanhua.han@nxp.com> Reviewed-by: Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com>
2019-07-29rtc: move RTC_RX8025 to KconfigHeiko Schocher
move RTC_RX8025 to Kconfig and fixup board configs. Signed-off-by: Heiko Schocher <hs@denx.de>
2019-07-22rtc: Add rtc driver for stm32mp1Patrick Delaunay
Add support of STM32MP1 rtc driver. Enable it for basic and trusted configurations. Signed-off-by: Benjamin Gaignard <benjamin.gaignard@st.com>
2019-07-13rtc: add Microcrystal RV-8803 driverMichael Walle
Signed-off-by: Michael Walle <michael@walle.cc>
2018-12-03Kconfig: Migrate CONFIG_RTC_M41T62 define to KconfigLukasz Majewski
This patch moves the RTC M41T62 config define to Kconfig. Signed-off-by: Lukasz Majewski <lukma@denx.de> Reviewed-by: Stefan Roese <sr@denx.de> Reviewed-by: Simon Glass <sjg@chromium.org>
2018-11-30rtc: rv3029: add to KconfigPhilipp Tomsich
The MicroCrystal RV3029 driver didn't have a Kconfig entry and was not used anywhere. Add it to Kconfig to make it selectable. Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> Tested-by: Klaus Goger <klaus.goger@theobroma-systems.com>
2018-10-09rtc: Allow use of RTC in SPL and TPLSimon Glass
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>
2018-10-09Kconfig: Convert CONFIG_RTC_MC146818 to KconfigSimon Glass
Move this option to Kconfig and tidy up the two boards which use it. Signed-off-by: Simon Glass <sjg@chromium.org>
2018-07-19ARM: qemu-arm: enable RTCHeinrich Schuchardt
QEMU provides an emulated ARM AMBA PrimeCell PL031 RTC. The patch sets the base address in the board include file according to the definition in hw/arm/virt.c of the QEMU source. It defines the Kconfig option for the existing driver, and enables the RTC driver in qemu_arm64_defconfig and qemu_arm_defconfig as well as the date command. We need an RTC to provide the GetTime() runtime service in the UEFI subsystem. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Reviewed-by: Tuomas Tynkkynen <tuomas.tynkkynen@iki.fi> Tested-by: Tuomas Tynkkynen <tuomas.tynkkynen@iki.fi> Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
2018-06-05drivers/rtc: convert mvrtc to DMChris Packham
Add DM support for the Marvell RTC driver. Signed-off-by: Chris Packham <judge.packham@gmail.com> Reviewed-by: Stefan Roese <sr@denx.de>
2018-04-06rtc: rewrite isl1208 to support DMKlaus Goger
Adds devicemodel support to the ISL1208 driver. This patch drops the non-dm API as no board was using it anyway. Also add it to Kconfig. Signed-off-by: Klaus Goger <klaus.goger@theobroma-systems.com> Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2018-02-04rtc: adding RX8010SJ rtc driverNandor Han
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>
2017-11-20rtc: add support for s35392aNandor Han
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>
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>
2017-01-14rtc: pcf2127: Update Kconfig and code styleMeng Yi
Unfortunately version 2 of this patch was applied which was missing some changes. Fix this. Signed-off-by: Meng Yi <meng.yi@nxp.com> Acked-by: Simon Glass <sjg@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org>
2016-12-02rtc: Add RTC chip pcf2127 supportMeng Yi
This driver compatible with pcf2127 and pcf2129 Signed-off-by: Meng Yi <meng.yi@nxp.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2015-08-12drivers: hierarchize drivers Kconfig menuMasahiro Yamada
The menuconfig for drivers are getting more and more cluttered and unreadable because too many entries are displayed in a single flat menu. Use hierarchic menu for each category. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Simon Glass <sjg@chromium.org> [trini: Update to apply again in a few places, drop USB hunk] Signed-off-by: Tom Rini <trini@konsulko.com>
2015-05-05dm: rtc: Add a uclass for real-time clocksSimon Glass
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>
2014-09-24kconfig: add blank Kconfig filesMasahiro Yamada
This would be useful to start moving various config options. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Acked-by: Simon Glass <sjg@chromium.org> Tested-by: Simon Glass <sjg@chromium.org>
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