This commit is enabling the Debug support clock
like the stm32L0 or F0, the APB peripheral clock enable register 1
has a bit to clock DBGMCU before use.
Signed-off-by: Francois Ramu <francois.ramu@st.com>
This commit is controlling the WWDG during the Stop mode in debug.
WWDG1 is frozen while the core is in Debug mode, setting the bit
of the DBGMCU APB1 peripheral freeze register (DBGMCU_APB1FZ2)
for the stm32MP1 soc devices.
Signed-off-by: Francois Ramu <francois.ramu@st.com>
This commit is controlling the WWDG during the Stop mode in debug.
WWDG1 is frozen while the core is in Debug mode, setting the bit
of the DBGMCU APB3 peripheral freeze register (DBGMCU_APB3FZ1)
for the stm32H7 soc devices.
Signed-off-by: Francois Ramu <francois.ramu@st.com>
Added watchdog implementation which is using counter device
to implement watchdog driver API. Watchdog timeout is called from
counter interrupt context. Some counter implementations support
using ZLI interrupt level which can be use here as well. Watchdog
like this can be used along hardware watchdog to cover for its
limitations, i.e. Nordic watchdog resets unconditionally after
62uS after triggering watchdog interrupt. It is not enough time
to dump logging data.
Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
Reduce interval of warning timer, so we can print more
warning messages (ex. MEPC, task ID...) before watchdog reset.
Signed-off-by: Ruibin Chang <ruibin.chang@ite.com.tw>
Instead of putting object files inside libzephyr.a,
simply build a separate static library as most other
driver types are doing this already.
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
Add watchdog support to the mimxrt685 platform.
The mimxrt685 platform is excluded from the watchdog
test case because the test case uses variables in the
noinit section that need to be retained through a reset
but the rt685 does not retain this memory through a
reset.
Signed-off-by: David Leach <david.leach@nxp.com>
Reboot functionality has nothing to do with PM, so move it out to the
subsys/os folder.
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
TWDT0 is loaded with a new value and the counter restarts counting with
it by written RST bit in Timer Control register (T0CSR) to 1. Then, the
RST bit in T0CSR register is cleared automatically on the 2nd rising
edge of T0IN clock. Since TWCP is set to 1:32, the maximum time that RST
bit is unset is 32 * (1 / 32768) ~= 980us.
Polling this bit within a critical section in current npcx watchdog
driver isn't a good approach since it might block the other interrupts
need to service them in time. This CL introduces a timeout mechanism and
removes the critical section to improve this disadvantage. Consider the
clock tolerance, 2 ms is a suitable timeout value for RST bit. We also
remove polling for WD_RUN bit in T0CSR. Npcx watchdog needs serval LFCLK
(32k Hz) clocks to stop watchdog. 1 ms is long enough for the timeout
mechanism.
Signed-off-by: Mulin Chao <mlchao@nuvoton.com>
The source clock of the watchdog module is selected to the input of T0
timer, not output. Correct the drawing in case confusing the users.
Signed-off-by: Mulin Chao <mlchao@nuvoton.com>
NPCX watchdog driver has a WDT_NPCX_DELAY_CYCLES for delay the watchdog
reset time after the watchdog timeout. For some systems, users would
like to use the watchdog timeout ISR but don't reset the chip
immediately. Let the system have the final chance to ongoing the system
before the real hardware reset time. Removing the watchdog reset
waiting loop in ISR lets users decide whether wait for watchdog reset
by themself.
Signed-off-by: Wealian Liao <WHLIAO@nuvoton.com>
As older series supported only 4 different prescaler values the
highest prescaler value was hardcoded. Newer series support 8
programmable prescaler values, therefore take the allowed values from
ll_wwdg header file.
Signed-off-by: Thomas Stranger <thomas.stranger@outlook.com>
Series STM32G0, STM32G4, STM32H7, STM32L5, STM32WB, STM32WL have
a newer wwdg ip and store the prescaler value not in bits[8:7],
but bits bits[13:11], use the definitions from ll to account for that.
Remove IS_WWDG_PRESCALER, this is not required as the prescaler
is not calculated, but known valid prescaler values are tested until a
valid counter is found.
Signed-off-by: Thomas Stranger <thomas.stranger@outlook.com>
The comparison was inverted before so configuring a valid window
providing min and max was not possible.
Now the comparison is corrected and only done if the watchdog is used in
windowed mode.
Signed-off-by: Christian Taedcke <christian.taedcke@lemonbeat.com>
Register T0CSR bit 4 is WDRST_STS which is used to check whether the
chip has watchdog reset from the last power-up or vcc1_rst. WDRST_STS
hardware is design to write one clear. For the original
read-modify-write, it will reset the WDRST_STS unexpected. Add a mask
to avoid it.
Signed-off-by: Wealian Liao <WHLIAO@nuvoton.com>
In function wwdg_stm32_init, return value of clock_control_on
was not checked.
This is reported as an issue by coverity (CID 219600).
Fix this.
Fixes#33067
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
Convert from device_get_binding to DEVICE_DT_GET. In doing this we
no longer need the label in the devicetree node so we remove that.
Removed all __ASSERT_NO_MSG(clk) since we'll get a build error if
DEVICE_DT_GET cant be satisfied, and the clock control api's will
handle reporting if the device_is_ready.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
Rather than Kconfig vendor symbols, select stm32 watchdog using
compatible.
So user only has to enable the requested node and set
CONFIG_WATCHDOG=y.
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
Fix the timeout computation to provide more accurate timeouts
versus requested timeout.
Additionally, the error margin is reworked in order to:
- be relative to the application requested timeout (10% tolerance)
- exclude timeouts inferior to application request
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
In npcx7 series, the Timer and Watchdog module (TWD) generates the
clocks and interrupts used for timing periodic functions in the system.
It also provides watchdog reset signal generation in response to a
failure detection.
The CL also includes:
— Add npcx watchdog device tree declarations.
— Zephyr watchdog api implementation.
— Add Watchdog definitions for npcx7 series in
tests/drivers/watchdog/wdt_basic_api/src/test_wdt.c for
supporting test suites.
Signed-off-by: Mulin Chao <MLChao@nuvoton.com>
Now that we generate a header that extern's all possible devicetree
based device struct we can remove DEVICE_DT_DECLARE and
DEVICE_DT_INST_DECLARE as they aren't needed anymore.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
Convert watchdog drivers to use new DT variants of the DEVICE APIs.
DEVICE_AND_API_INIT -> DEVICE_DT_DEFINE
DEVICE_GET -> DEVICE_DT_GET
DEVICE_DECLARE -> DEVICE_DT_INST_DECLARE
etc..
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
CONFIG_IWDG_STM32_TIMEOUT allowed values of 100 us for initial watchdog
timeout, which was actually rounded to zero in the driver, which uses
milliseconds resolution for timeouts. This resulted in the reload value
being set to maximum possible (calculation: 0U - 1).
This commit updates the calculation of timeout minimum and maximum
values considering the actual LSI frequency of the used MCU.
As the resolution of CONFIG_IWDG_STM32_TIMEOUT in microseconds doesn't
make sense if the driver supports only milliseconds, it is renamed to
IWDG_STM32_INITIAL_TIMEOUT (this prevents accidental wrong settings in
existing firmware) and the unit is changed to ms.
Signed-off-by: Martin Jäger <martin@libre.solar>
Replace all calls to the assert macro that comes from libc by calls to
__ASSERT_NO_MSG(). This is usefull as the former might be different
depending on the libc used and the later can be customized to reduce
flash footprint.
Signed-off-by: Xavier Chapron <xavier.chapron@stimio.fr>
Rename wdog_cmsdk_apb_enable to wdog_cmsdk_apb_setup,
this API is supposed to be called during driver probe based on
CONFIG_WDOG_CMSDK_APB_START_AT_BOOT (enabled by default).
Fixes: 03c7d9bd49 ("drivers: wdog: Update CMSDK Wdog driver")
Signed-off-by: Abhishek Shah <abhishek.shah@broadcom.com>
These are all the case that coccinelle cannot find as they are inside
macro declarations.
Fixed via:
git grep -rlz -E "\(struct device \*" |
xargs -0 sed -i 's/(struct device/(const struct device/g'
Fixes#27399
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
Now that device_api attribute is unmodified at runtime, as well as all
the other attributes, it is possible to switch all device driver
instance to be constant.
A coccinelle rule is used for this:
@r_const_dev_1
disable optional_qualifier
@
@@
-struct device *
+const struct device *
@r_const_dev_2
disable optional_qualifier
@
@@
-struct device * const
+const struct device *
Fixes#27399
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
The EFR32MG21 uses a different kind of clock for watchdogs.
It requires an additional peripheral-id parameter in the dts to get the
proper clock as it is based on the watchdog's ID i.e., cmuClock_WDOG#.
Signed-off-by: Steven Lemaire <steven.lemaire@zii.aero>
