aboutsummaryrefslogtreecommitdiff
path: root/drivers/rtc
AgeCommit message (Collapse)Author
2022-07-21treewide: Fix Marek's name and change my e-mail addressMarek Behún
Fix diacritics in some instances of my name and change my e-mail address to kabel@kernel.org. Add corresponding .mailmap entries. Signed-off-by: Marek Behún <kabel@kernel.org> Reviewed-by: Stefan Roese <sr@denx.de>
2022-06-08test: Load mac address using RTCSean Anderson
This uses the nvmem API to load a mac address from an RTC. Signed-off-by: Sean Anderson <sean.anderson@seco.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2022-05-05rtc: rv8803: fix off-by-one in month countingOliver Graute
tm_mon has a range from 0..11, but the RTC expects 1..12. So we adapt the month accordingly. This was determined when comparing the driver with the corresponding linux kernel driver. Signed-off-by: Oliver Graute <oliver.graute@kococonnector.com> Reviewed-by: Michael Walle <michael@walle.cc> Reviewed-by: Heiko Schocher <hs@denx.de>
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>
2022-03-04drivers: rtc: fix null pointer access in armada38x_rtc_resetFrancois Berder
Replace null pointer by pointer to device registers when calling armada38x_rtc_write. Signed-off-by: Francois Berder <fberder@outlook.fr> Reviewed-by: Stefan Roese <sr@denx.de>
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>
2022-02-01rtc: pcf2127: remove U-Boot specific compatible stringVladimir Oltean
Now that all in-tree boards have been converted to the compatible strings from Linux, delete the support for the ad-hoc "pcf2127-rtc" one. Cc: Simon Glass <sjg@chromium.org> Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Michael Walle <michael@walle.cc> Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
2022-02-01rtc: pcf2127: sync with Linux compatible stringsVladimir Oltean
Allow this driver to be used by boards which inherit their device trees from Linux. Compatibility is temporarily retained with the old compatible string which is U-Boot specific, and will be removed after a few changes. Cc: Simon Glass <sjg@chromium.org> Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Michael Walle <michael@walle.cc> Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
2021-11-11rtc: ds1337: fix compatible string typoClemens Gruber
The driver supports the ds1339 as well, which was probably intended by the author but prevented by a typo. Fix the typo. Signed-off-by: Clemens Gruber <clemens.gruber@pqgruber.com>
2021-10-20Merge tag 'u-boot-imx-20211020' of ↵Tom Rini
https://source.denx.de/u-boot/custodians/u-boot-imx u-boot-imx-20211020 ------------------- First PR from u-boot-imx for 2022.01 CI: https://source.denx.de/u-boot/custodians/u-boot-imx/-/pipelines/9535 - new board: kontron-sl-mx8mm - imx8m: - fix secure boot - imx ESDHC: fixes - i.MX53: Support thum2, bmode and fixes for Menlo board usbarmory switch to Ethernet driver model - imx6 : - DDR calibration for Toradex boards - imx7: - Fixes - Updated gateworks boards (ventana / venice) # gpg verification failed.
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>
2021-10-07rtc: rv8803: add epson,rx8803 and epson,rx8900 compatibleHeiko Thiery
The RX8803 and RX8900 register layouts are compatible with the one of the RV8803. So add these to the compatibles. The same compatible strings are used and approved in linux kernel. Signed-off-by: Heiko Thiery <heiko.thiery@gmail.com> Reviewed-by: Michael Walle <michael@walle.cc>
2021-10-03rtc: rx8025: revise single register write to use offsetMathew McBride
Writing of individual registers was not functioning correctly as a 0 'offset' byte under DM-managed I2C was being appended in front of register we wanted to access. Signed-off-by: Mathew McBride <matt@traverse.com.au>
2021-10-03rtc: rx8025: set date in a single i2c transactionMathew McBride
The RX8025/RX8035 does not like having it's time registers set byte-by-byte in separate I2C transactions. From the note at the top of the file, it appears target-dependent workarounds have been used in the past for this. Resolve this by setting the time registers in a single I2C transaction. As part of this, also ensure the '24/12' flag in the RTC is reset before writing the date (instead of after), otherwise the RX8035 will clear the seconds and minutes registers. Tested on Traverse Ten64 (NXP LS1088A) with RX8035. Signed-off-by: Mathew McBride <matt@traverse.com.au>
2021-10-03rtc: rx8025: add support for EPSON RX8035.Mathew McBride
The RX8035 is a newer model from EPSON which is very similar in operation to the RX8025. The changes mirror similar ones that will be in Linux 5.15: https://lore.kernel.org/all/20210709044518.28769-2-matt@traverse.com.au/ The UBOOT_DRIVER ID has also been corrected, previously it declared itself as rx8010sj_rtc which is a different driver. Signed-off-by: Mathew McBride <matt@traverse.com.au>
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>
2021-09-25treewide: Use OF_REAL instead of !OF_PLATDATASimon Glass
Now that we have a 'positive' Kconfig option, use this instead of the negative one, which is harder to understand. Signed-off-by: Simon Glass <sjg@chromium.org>
2021-09-17Remove including timestamp.h in version.hPali Rohár
Header file version.h does not use anything from timestamp.h. Including of timestamp.h has side effect which cause recompiling object file at every make run because timestamp.h changes at every run. So remove timestamp.h from version.h and include timestamp.h in files which needs it. This change reduce recompilation time of final U-Boot binary when U-Boot source files were not changed as less source files needs to be recompiled. Signed-off-by: Pali Rohár <pali@kernel.org> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Tom Rini <trini@konsulko.com> [trini: Add in lib/acpi/acpi_table.c and test/dm/acpi.c, rework a few others] Signed-off-by: Tom Rini <trini@konsulko.com>
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>
2021-08-06rtc: 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>
2021-08-06dm: rtc: uclass: Add flag to control sequence numberingMichal Simek
RTCs are using aliases for sequences. That's why enable DM_UC_FLAG_SEQ_ALIAS for exact RTC indentification. The same flag is used by a lot of other uclasses like mmc, pci, serial, spi, timer, tpm, etc. Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2021-08-02global: Convert simple_strtoul() with hex to hextoul()Simon Glass
It is a pain to have to specify the value 16 in each call. Add a new hextoul() function and update the code to use it. Add a proper comment to simple_strtoul() while we are here. Signed-off-by: Simon Glass <sjg@chromium.org>
2021-07-15rtc: m41t62: fix wrong register use for set/reset ST bitMax Yang
Fix wrong register use when set/reset ST bit. ST bit is in register M41T62_REG_SEC not in M41T62_REG_ALARM_HOUR. I have not actually tested this. But this seemed buggy from inspection. Fixes: 9bbe210512c4539 ("rtc: m41t62: add oscillator fail bit reset support") Signed-off-by: Max Yang <max.yang@deltaww.com>
2021-07-14lib: move rtc-lib.c to libHeinrich Schuchardt
Function rtc_to_tm() is needed for FAT file system support even if we don't have a real time clock. So move it from drivers/ to lib/. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2021-07-06dm: define LOG_CATEGORY for all uclassPatrick Delaunay
Define LOG_CATEGORY for all uclass to allow filtering with log command. Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2021-06-09rtc: davinci: fix date loaded on resetDario Binacchi
On reset, the RTC loads the 2000-01-01 date with a wrong day of the week (Sunday instead of Saturday). Signed-off-by: Dario Binacchi <dariobin@libero.it> Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com> Link: https://lore.kernel.org/r/20210602203805.11494-9-dariobin@libero.it
2021-06-09rtc: davinci: add driver model supportDario Binacchi
Update the driver to support the device tree and the driver model. The read / write helpers in rtc_ops allow access to scratch registers only. The offset parameter is added to the address of the scratch0 register. Support for non-DM has been removed as there were no users. Signed-off-by: Dario Binacchi <dariobin@libero.it> Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com> Link: https://lore.kernel.org/r/20210602203805.11494-8-dariobin@libero.it
2021-06-09rtc: davinci: use unlock/lock mechanismDario Binacchi
The RTC module contains a kicker mechanism to prevent any spurious writes from changing the register values. To set the time, you must first unlock the TC registers, update them and then lock. Signed-off-by: Dario Binacchi <dariobin@libero.it> Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com> Link: https://lore.kernel.org/r/20210602203805.11494-6-dariobin@libero.it
2021-06-09rtc: davinci: check BUSY bit before set TC registersDario Binacchi
To write correct data to the TC registers, the STATUS register must be read until the BUSY bit is equal to zero. Once the BUSY flag is zero, there is a 15 μs access period in which the TC registers can be programmed. The rtc_wait_not_busy() has been inspired by the Kernel. Signed-off-by: Dario Binacchi <dariobin@libero.it> Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com> Link: https://lore.kernel.org/r/20210602203805.11494-5-dariobin@libero.it
2021-06-09rtc: davinci: replace 32bit access with 8bit accessDario Binacchi
Use 32-bit access only where it is needed. Most of the RTC registers contain useful information in the 8 least significant bits, the others are reserved. Signed-off-by: Dario Binacchi <dariobin@libero.it> Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com> Link: https://lore.kernel.org/r/20210602203805.11494-4-dariobin@libero.it
2021-06-09rtc: davinci: fix compiler errorsDario Binacchi
Fix errors raised by module compilation. Signed-off-by: Dario Binacchi <dariobin@libero.it> Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com> Link: https://lore.kernel.org/r/20210602203805.11494-3-dariobin@libero.it
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>
2021-03-29Merge tag 'v2021.04-rc5' into nextTom Rini
Prepare v2021.04-rc5
2021-03-26sandbox: i2c: Support i2c emulation with of-platdataSimon Glass
At present the i2c emulators require access to the devicetree, which is not possible (by design) with of-platdata. Add a way for drivers to record the of-platdata index of their emulator, so that we can still find the emulator. This allows i2c emulation to work with of-platdata. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org>
2021-03-26sandbox: i2c: Move platdata structs to header filesSimon Glass
At present the structs used by these drivers are declared in the C files and so are not accessible to dtoc. Move them to header files, as required. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org>
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>
2021-03-22sandbox: i2c: Rename driver names to work with of-platdataSimon Glass
Some of these do not follow the rules. Make sure the driver name matches the compatible string in all cases. Signed-off-by: Simon Glass <sjg@chromium.org>
2021-01-30sandbox: keep time offset when resettingHeinrich Schuchardt
The UEFI Self Certification Test (SCT) checks the SetTime() service with the following steps: * set date * reset * check date matches To be compliant the sandbox should keep the offset to the host RTC during resets. The implementation uses the environment variable UBOOT_SB_TIME_OFFSET to persist the offset. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Reviewed-by: Simon Glass <sjg@chromium.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>
2021-01-13rtc: stm32: migrate trace to log macroPatrick Delaunay
Define LOG_CATEGORY to allow filtering with log command. Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com> Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
2021-01-05dm: Rename U_BOOT_DEVICE() to U_BOOT_DRVINFO()Simon Glass
The current macro is a misnomer since it does not declare a device directly. Instead, it declares driver_info record which U-Boot uses at runtime to create a device. The distinction seems somewhat minor most of the time, but is becomes quite confusing when we actually want to declare a device, with of-platdata. We are left trying to distinguish between a device which isn't actually device, and a device that is (perhaps an 'instance'?) It seems better to rename this macro to describe what it actually is. The macros is not widely used, since boards should use devicetree to declare devices. Rename it to U_BOOT_DRVINFO(), which indicates clearly that this is declaring a new driver_info record, not a device. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-12-13dm: treewide: Rename ..._platdata variables to just ..._platSimon Glass
Try to maintain some consistency between these variables by using _plat as a suffix for them. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-12-13dm: treewide: Rename ofdata_to_platdata() to of_to_plat()Simon Glass
This name is far too long. Rename it to remove the 'data' bits. This makes it consistent with the platdata->plat rename. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-12-13dm: treewide: Rename dev_get_platdata() to dev_get_plat()Simon Glass
Rename this to be consistent with the change from 'platdata'. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-12-13dm: treewide: Rename 'platdata' variables to just 'plat'Simon Glass
We use 'priv' for private data but often use 'platdata' for platform data. We can't really use 'pdata' since that is ambiguous (it could mean private or platform data). Rename some of the latter variables to end with 'plat' for consistency. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-12-13dm: treewide: Rename auto_alloc_size members to be shorterSimon Glass
This construct is quite long-winded. In earlier days it made some sense since auto-allocation was a strange concept. But with driver model now used pretty universally, we can shorten this to 'auto'. This reduces verbosity and makes it easier to read. Coincidentally it also ensures that every declaration is on one line, thus making dtoc's job easier. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-11-06Merge https://gitlab.denx.de/u-boot/custodians/u-boot-x86Tom Rini
- Add a new SMBIOS parser and enable it when booting from coreboot - Fix up various driver names to avoid dtoc warnings - Fully enable ACPI support on Google Chromebook Coral - Add a way to set SMBIOS properties using the devicetree - Update existing boards to use devicetree for SMBIOS using a new default sysinfo driver