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In case of empty battery or glitches the oscillator fail
bit might be set. This will reset the bit in the reset
routine.
Signed-off-by: Sebastian Reichel <[email protected]>
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This takes care of resetting the 32kHz square wave, which is
used by some boards as clock source for the SoC.
Signed-off-by: Sebastian Reichel <[email protected]>
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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 <[email protected]>
Signed-off-by: Heinrich Schuchardt <[email protected]>
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Currently the emulated RTC is initialized in the emul_rtc_get() get
function. This does not match the design of the driver model.
Move the initialization of the emulated RTC to the probe() function.
Signed-off-by: Heinrich Schuchardt <[email protected]>
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Add a simple test that we can obtain the correct parent for an I2C
device. This requires updating the driver names to match the compatible
strings, adding them to the devicetree and enabling a few options.
Signed-off-by: Simon Glass <[email protected]>
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There is no devicetree with of-platdata. Update a few uclasses to allow
them to be built for sandbox_spl. Also drop the i2c-gpio from SPL to avoid
build errors, since it does not support of-platdata.
Signed-off-by: Simon Glass <[email protected]>
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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 <[email protected]>
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add Kconfig option for pcf8563 driver and
run tools/moveconfig.py
Signed-off-by: Heiko Schocher <[email protected]>
Reviewed-by: Stefan Roese <[email protected]>
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When you enable CONFIG_OF_LIVE, you will end up with a lot of
conversions.
To generate this commit, I used coccinelle excluding drivers/core/,
include/dm/, and test/
The semantic patch that makes this change is as follows:
<smpl>
@@
expression dev;
@@
-devfdt_get_addr(dev)
+dev_read_addr(dev)
</smpl>
Signed-off-by: Masahiro Yamada <[email protected]>
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This reverts commit 5d3a21df6694ebd66d5c34c9d62a26edc7456fc7, reversing
changes made to 56d37f1c564107e27d873181d838571b7d7860e7.
Unfortunately this is causing CI failures:
https://travis-ci.org/github/trini/u-boot/jobs/711313649
Signed-off-by: Tom Rini <[email protected]>
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When you enable CONFIG_OF_LIVE, you will end up with a lot of
conversions.
To generate this commit, I used coccinelle excluding drivers/core/,
include/dm/, and test/
The semantic patch that makes this change is as follows:
<smpl>
@@
expression dev;
@@
-devfdt_get_addr(dev)
+dev_read_addr(dev)
</smpl>
Signed-off-by: Masahiro Yamada <[email protected]>
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Add a function to write a GPIO descriptor to the generated ACPI code.
Signed-off-by: Simon Glass <[email protected]>
Reviewed-by: Wolfgang Wallner <[email protected]>
Reviewed-by: Bin Meng <[email protected]>
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It's more natural that any write that happens to touch the reset
register should cause a reset, rather than just a write that starts at
that offset.
Reviewed-by: Simon Glass <[email protected]>
Reviewed-by: Heiko Schocher <[email protected]>
Signed-off-by: Rasmus Villemoes <[email protected]>
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The current set method is broken; a simple test case is to first set
the date to something in April, then change the date to 31st May:
=> date 040412122020.34
Date: 2020-04-04 (Saturday) Time: 12:12:34
=> date 053112122020.34
Date: 2020-05-01 (Friday) Time: 12:12:34
or via the amending of the existing rtc_set_get test case similarly:
$ ./u-boot -T -v
=> ut dm rtc_set_get
Test: dm_test_rtc_set_get: rtc.c
expected: 31/08/2004 18:18:00
actual: 01/08/2004 18:18:00
The problem is that after each register write,
sandbox_i2c_rtc_complete_write() gets called and sets the internal
time from the current set of registers. However, when we get to
writing 31 to mday, the registers are in an inconsistent state (mon is
still 4), so the mktime machinery ends up translating April 31st to
May 1st. Upon the next register write, the registers are populated by
sandbox_i2c_rtc_prepare_read(), so the 31 we just wrote to mday gets
overwritten by a 1.
Fix it by writing all registers at once, and for consistency, update
the get method to retrieve them all with one "i2c transfer".
Reviewed-by: Simon Glass <[email protected]>
Reviewed-by: Heiko Schocher <[email protected]>
Signed-off-by: Rasmus Villemoes <[email protected]>
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Reviewed-by: Simon Glass <[email protected]>
Reviewed-by: Heiko Schocher <[email protected]>
Signed-off-by: Rasmus Villemoes <[email protected]>
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This simply consists of renaming the existing pcf2127_read_reg()
helper to follow the naming of the other
methods (i.e. pcf2127_rtc_<method name>) and changing the type of its
"len" parameter.
Reviewed-by: Simon Glass <[email protected]>
Reviewed-by: Heiko Schocher <[email protected]>
Signed-off-by: Rasmus Villemoes <[email protected]>
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Similar to how the dm_rtc_{read,write} functions fall back to using
the {read,write}8 methods, do the opposite in the rtc_{read,write}8
functions.
This way, each driver only needs to provide either ->read8 or ->read
to make both rtc_read8() and dm_rtc_read() work - without this, a
driver that provides ->read() would most likely just duplicate the
logic here for implementing a ->read8() method in term of its ->read()
method. The same remarks of course apply to the write case.
Reviewed-by: Simon Glass <[email protected]>
Reviewed-by: Heiko Schocher <[email protected]>
Signed-off-by: Rasmus Villemoes <[email protected]>
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Similar to dm_rtc_read(), introduce a helper that allows the caller to
write multiple consecutive 8-bit registers with one call. If the
driver provides the ->write method, use that, otherwise loop using
->write8.
Reviewed-by: Simon Glass <[email protected]>
Reviewed-by: Heiko Schocher <[email protected]>
Signed-off-by: Rasmus Villemoes <[email protected]>
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Some users may want to read multiple consecutive 8-bit
registers. Instead of each caller having to implement the loop,
provide a dm_rtc_read() helper. Also, allow a driver to provide a
->read method, which can be more efficient than reading one register
at a time.
Reviewed-by: Simon Glass <[email protected]>
Reviewed-by: Heiko Schocher <[email protected]>
Signed-off-by: Rasmus Villemoes <[email protected]>
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Move this uncommon header out of the common header.
Signed-off-by: Simon Glass <[email protected]>
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Move this uncommon header out of the common header.
Signed-off-by: Simon Glass <[email protected]>
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Fix up some incorrect code style in calls to functions in the linux/time.h
header, mostly udelay().
Signed-off-by: Simon Glass <[email protected]>
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Move this header out of the common header.
Signed-off-by: Simon Glass <[email protected]>
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Fix up some incorrect code style in calls to functions in the log.h
header, mostly debug().
Signed-off-by: Simon Glass <[email protected]>
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Add support of driver model of pt7c4338
Signed-off-by: Biwen Li <[email protected]>
Reviewed-by: Priyanka Jain <[email protected]>
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Add support of driver model of ds1337
Signed-off-by: Biwen Li <[email protected]>
Reviewed-by: Priyanka Jain <[email protected]>
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As noted in rtc_def.h, the tm_mon field in struct rtc_time is 1-12,
unlike in struct tm where it is 0-11. Currently, running "date" prints
the wrong
Date: 2020-04-01 (Friday) Time: 13:05:30
and setting the RTC via the date command is also broken.
Signed-off-by: Rasmus Villemoes <[email protected]>
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%s/Watchdoc/Watchdog/
Signed-off-by: Heinrich Schuchardt <[email protected]>
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This adds a compatible string for m41st87. This ensures that this driver
can be used for m41st87.
Signed-off-by: Marek Vasut <[email protected]>
Cc: Simon Goldschmidt <[email protected]>
Cc: Stefan Roese <[email protected]>
Reviewed-by: Stefan Roese <[email protected]>
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At present dm/device.h includes the linux-compatible features. This
requires including linux/compat.h which in turn includes a lot of headers.
One of these is malloc.h which we thus end up including in every file in
U-Boot. Apart from the inefficiency of this, it is problematic for sandbox
which needs to use the system malloc() in some files.
Move the compatibility features into a separate header file.
Signed-off-by: Simon Glass <[email protected]>
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Add support of driver model of pcf8563
Signed-off-by: Biwen Li <[email protected]>
Signed-off-by: Priyanka Jain <[email protected]>
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The 3-bit "command", or register, is encoded within the device address.
Configure the device accordingly, and pass command in DM I2C read/write
calls correctly.
Signed-off-by: Ian Ray <[email protected]>
Signed-off-by: Robert Beckett <[email protected]>
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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 <[email protected]>
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Add compatible string used by Linux.
Allows for simpler syncing of device trees.
Signed-off-by: Robert Beckett <[email protected]>
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Add compatible strings used by Linux.
Allows for simpler syncing of device trees.
Signed-off-by: Robert Beckett <[email protected]>
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pass the udevice by reference instead of double ref
Signed-off-by: Robert Beckett <[email protected]>
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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 <[email protected]>
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These functions do not use driver model but are still used. Move them to a
new eeprom.h header file.
Signed-off-by: Simon Glass <[email protected]>
Reviewed-by: Tom Rini <[email protected]>
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The patch fixes coding style
Signed-off-by: Biwen Li <[email protected]>
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STM32 RTC manages only 2 digits for YEAR
(Year tens and units in BCD format in RTC_DR register).
With this patch, RTC driver assumes that tm->tm_years is between
2000 and 2099; tm->tm_year - 2000 have only 2 digit
(0 > and <= 99).
Signed-off-by: Patrick Delaunay <[email protected]>
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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 <[email protected]>
Reviewed-by: Prabhakar Kushwaha <[email protected]>
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Move env_get() over to the new header file.
Acked-by: Joe Hershberger <[email protected]>
Signed-off-by: Simon Glass <[email protected]>
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add DM support for this RTC driver.
Signed-off-by: Heiko Schocher <[email protected]>
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fix Coding Style for this driver.
Signed-off-by: Heiko Schocher <[email protected]>
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move RTC_RX8025 to Kconfig and fixup board configs.
Signed-off-by: Heiko Schocher <[email protected]>
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Add support of STM32MP1 rtc driver.
Enable it for basic and trusted configurations.
Signed-off-by: Benjamin Gaignard <[email protected]>
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Add an implementation of the ds3231 driver that uses the driver
model i2c APIs.
Signed-off-by: Chuanhua Han <[email protected]>
Reviewed-by: Lukasz Majewski <[email protected]>
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Signed-off-by: Michael Walle <[email protected]>
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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 <[email protected]>
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The previous pcf2127 RTC chip could not read and set the correct time.
When reading the data of internal registers, the read address was the
value of register plus 1. This is because this chip requires the host
to send a stop signal after setting the register address and before
reading the register data.
This patch sets the register address using dm_i2c_write and reads
the register data using the original dm_i2c_xfer in order to generate
a stop signal after the register address is set, and fixes the bug of
the original read and write time.
Signed-off-by: Biwen Li <[email protected]>
Signed-off-by: Chuanhua Han <[email protected]>
Reviewed-by: Lukasz Majewski <[email protected]>
Reviewed-by: Heiko Schocher <[email protected]>
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