STM32 clock control subsystem allows to configure a different
frequency value for core clock (SYSCLK) and AHB clock (HCLK).
Though, it is HCLK which is used to feed Cortex Systick timer
which is used in zephyr as reference system clock.
If HCLK frequency is configured to a different value from SYSCLK
frequency, whole system is exposed to desynchro between zephyr clock
subsytem and STM32 HW configuration.
To prevent this, and until zephyr clock subsystem is changed to be
aware of this potential configuration, enforce AHB prescaler value
to 1 (which is current default value in use for all STM32 based
boards).
On STM32H7, enforce D1CPRE which fills the same role as ABH precaler.
On STM32MP1, the equivalent setting is done on A7 core, so it is
not exposed to the same issue as long as SYS_CLOCK_HW_CYCLES_PER_SEC
is set with the 'mlhclk_ck' clock frequency value. Update
matching boards documentation.
Fixes#17188
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
This board and SoC was discontinued some time ago and is currently not
maintained in the zephyr tree.
Remove all associated configurations and variants from the tree.
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
The clock control initialization code used system clock
frequency as a CPU clock frequency. This commit corrects
that by obtaining the needed value from DTS.
Signed-off-by: Piotr Zięcik <piotr.ziecik@nordicsemi.no>
Add clock support for STM32G0X SoC series.
Signed-off-by: Philippe Retornaz <philippe@shapescale.com
Signed-off-by: Francois Ramu <francois.ramu@st.com>
On STM32H7, in Dual core configuration, we restrict configuration
access to CM7 core. CM4 can access to API but not the init part of
the driver.
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
Provide basic clock control driver for STM32H7.
Bus clock activation is done through CM7 and CM4 common registers
so we don't have to care to the CPU Id before accessing.
Accesses are not protected for now. Only possible configuration
is system clock source set to HSE driven PLL.
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
Extended clock configuration to allow usage of external clock
source for nrf52 series.
Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
move misc/util.h to sys/util.h and
create a shim for backward-compatibility.
No functional changes to the headers.
A warning in the shim can be controlled with CONFIG_COMPAT_INCLUDES.
Related to #16539
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
move misc/__assert.h to sys/__assert.h and
create a shim for backward-compatibility.
No functional changes to the headers.
A warning in the shim can be controlled with CONFIG_COMPAT_INCLUDES.
Related to #16539
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
move clock_control.h to drivers/clock_control.h and
create a shim for backward-compatibility.
No functional changes to the headers.
A warning in the shim can be controlled with CONFIG_COMPAT_INCLUDES.
Related to #16539
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
move sys_io.h to sys/sys_io.h and
create a shim for backward-compatibility.
No functional changes to the headers.
A warning in the shim can be controlled with CONFIG_COMPAT_INCLUDES.
Related to #16539
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
move atomic.h to sys/atomic.h and
create a shim for backward-compatibility.
No functional changes to the headers.
A warning in the shim can be controlled with CONFIG_COMPAT_INCLUDES.
Related to #16539
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Enable the MCUX SCG clock controller driver by default for the NXP
Kinetis KE1xF SoC series. Move the generic CLKOUT configuration from
SoC to the clock controller driver.
Signed-off-by: Henrik Brix Andersen <hebad@vestas.com>
Some files cleanup was overlooked when STM32 clock_control
was re-factored in #16486.
Fix this by removing the now superfluous files.
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
Change code from using now deprecated DT_<COMPAT>_<INSTANCE>_<PROP>
defines to using DT_INST_<INSTANCE>_<COMPAT>_<PROP>.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
In order ease readability of Kconfig.stm32 file, split series
specific PLL configuration options into series specifc Kconfig
files.
This being done, we have now a similar pattern for series specific
code and series specific Kconfig files.
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
RCC device could be common to various STM32 series.
Until now, PLL handling code was set in series specific files,
even if it was driving the same device than another series.
Minimize code duplication by factorizing code between series
when possible.
With this change, some series get additional features by getting
access to code developed for other series.
Additionally, while renaming the files, remove the non informative
'x' to minimize file name length
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
soc_register.h is available in most of stm32 series.
It is sometime empty or contains includes to flash_registers.h,
which is included directly with direct reference in flash driver.
soc_register.h is also included in stm32 clock drivers, but this
driver do not use direct reference to any register anymore.
Clean up these files.
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
https://github.com/zephyrproject-rtos/ci-tools/pull/65 tweaks the check
for references to undefined Kconfig symbol to whitelist anything on the
form 'CONFIG_FOO_*' (or 'CONFIG_FOO_*_...'). This is meant for #endif
comments that talk about many related symbols.
Fix two existing #endif comments to use that format, so that some
entries can be removed from the whitelist in the CI check.
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
Add support for CLKOUT source selection and divider as found on the
NXP Kinetis KE1xF SoC series.
Signed-off-by: Henrik Brix Andersen <hebad@vestas.com>
Add a new clock control driver for NXP Kinetis SoCs that have the
Peripheral Clock Controller module (PCC).
Signed-off-by: Henrik Brix Andersen <hebad@vestas.com>
Change file naming pattern from BoardNameX_ll_clock.c to
clock_BoardNameX.c
File containing LL functions will have the "_ll_" naming
scheme (such as clock_stm32_ll_common.c and .h)
Signed-off-by: Yaël Boutreux <yael.boutreux@st.com>
Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@st.com>
Signed-off-by: Alexandre Torgue <alexandre.torgue@st.com>
Add support to stm32wb series in stm32 clock_control driver.
Ip is similar to stm32l4 one but AHB bus presacler is renamed
to "CPU1" and CPU2 and AHB4 prescalers should be defined.
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
Added option to have LFCLK synthesized from HFCLK. It is not low
power but ensures constant relation between HFCLK and LFCLK and
might be useful in certain scenarios (e.g. testing).
Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
Update the files which contain no license information with the
'Apache-2.0' SPDX license identifier. Many source files in the tree are
missing licensing information, which makes it harder for compliance
tools to determine the correct license.
By default all files without license information are under the default
license of Zephyr, which is Apache version 2.
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Rename reserved function names in drivers/ subdirectory. Update
function macros concatenatenating function names with '##'. As
there is a conflict between the existing gpio_sch_manage_callback()
and _gpio_sch_manage_callback() names, leave the latter unmodified.
Signed-off-by: Patrik Flykt <patrik.flykt@intel.com>
An external project extending the Zephyr RTOS and its drivers may have
subsystems that must use its own specific driver(s) when active. One
example is the nRF5x NVMC that must be scheduled in between radio
operations. A subsystem may also be dependent on its own drivers for
security, real-time and/or because of hardware constrains.
In order to not introduce non-Zephyr specific code into the Zephyr tree,
an option is added to disable the in-tree drivers in Zephyr. Because
Kconfig does not support a good way of de-selecting other symbols, a
variable on the form `<DRIVER>_FORCE_ALT` is added as a
dependency for each `<DRIVER>`. For example, the out-of-tree subsystem
will select `FLASH_NRF_FORCE_ALT` to disable the in-tree driver. A
solution for issue #8181 would open up for a more general solution,
however #8181 requires significant effort.
Support for out-of-tree drivers is added to Nordic drivers for
clock_control, entropy and flash.
A generic solution for this is desired. Issue #14527 is tracking that
progress.
Signed-off-by: Thomas Stenersen <thomas.stenersen@nordicsemi.no>
Add choice variables for CLOCK_CONTROL_NRF_SOURCE and
CLOCK_CONTROL_NRF_ACCURACY such that the choices may be augmented
out-of-tree.
Signed-off-by: Thomas Stenersen <thomas.stenersen@nordicsemi.no>
Redefining the config will not let another (out-of-source) driver be
chosen instead of the default. The driver is practically forced by the
soc settings. This commit moves default settings from soc/arm/nordic_nrf
into the drivers themselves.
Signed-off-by: Thomas Stenersen <thomas.stenersen@nordicsemi.no>
These symbols appear within an 'if CLOCK_CONTROL' (in
drivers/clock_control/Kconfig).
'if FOO' is just shorthand for adding 'depends on FOO' to each item
within the 'if'. Dependencies on menus work similarly. There are no
"conditional includes" in Kconfig, so 'if FOO' has no special meaning
around a source. Conditional includes wouldn't be possible, because an
if condition could include (directly or indirectly) forward references
to symbols not defined yet.
Tip: When adding a symbol, check its dependencies in the menuconfig
('ninja menuconfig', then / to jump to the symbol). The menuconfig also
shows how the file with the symbol got included, so if you see
duplicated dependencies, it's easy to hunt down where they come from.
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
Converts the rv32m1 clock control driver to use 'DT_' prefixed defines
instead of deprecated non-prefixed defines.
Signed-off-by: Maureen Helm <maureen.helm@nxp.com>
Allow for the MSI to be auto-cal'd via an LSE when enabled, even when
being used as a source for the PLL as the sysclock.
Signed-off-by: Pushpal Sidhu <psidhu.devel@gmail.com>
This commit adds the Clock Control Interrupt Service
Routine into the customized vector table, when building
for nRF52X-based platforms. As a result, the interrupts
generated by the clock control will not interfere with
the test.
Fixes#13823.
Signed-off-by: Ioannis Glaropoulos <Ioannis.Glaropoulos@nordicsemi.no>
For PLLQ divisor configuration, use directly RCC_PLLCFGR_PLLQ_Pos
definition instead of calculating its position from RCC_PLLCFGR_PLLQ.
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
Default AHB presacler value was set to 0 which is not an allowed
value. Set it to 1 and limit range from 1 to 512.
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
Some more were added since the cleanup pass in June 2018. See e.g.
commit 2d50da70a1 ("drivers: ipm: Kconfig: Remove redundant 'default n'
properties") for a motivation. It also avoids people wondering whether
or not they need to put in 'default n'.
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
Add a Peripheral Clock Controller (PCC) driver. This gates and ungates
clocks to various peripherals on the SoC.
Signed-off-by: Michael Scott <mike@foundries.io>
Signed-off-by: Marti Bolivar <marti@foundries.io>
Minor adjustments are done to the nRF clock_control and rtc_timer
drivers to make them usable on nRF9160 as well.
The arm_irq_vector_table test code is modified only because it uses
the function that has been renamed in the nrf_rtc_timer driver.
Signed-off-by: Andrzej Głąbek <andrzej.glabek@nordicsemi.no>
Use the symbol generated from DT so that it is common for nRF9160
and nRF5 family SoCs. To avoid artificial renaming of CLOCK_POWER_IRQn
to POWER_CLOCK_IRQn.
For nRF5 family SoCs clock nodes were not defined so far, thus they are
added so that the proper DT symbol is generated for them as well.
Signed-off-by: Andrzej Głąbek <andrzej.glabek@nordicsemi.no>
Renaming Kconfig.nrf5 to Kconfig.nrf in the wake of extending
the use of the nRF clock control driver to both nRF5 and nRF91
SOC series.
Signed-off-by: Ioannis Glaropoulos <Ioannis.Glaropoulos@nordicsemi.no>
This commit renames the nrf5_clock_control.h and
nrf5_clock_control.c files to nrf_clock_control.h and
nrf_clock_control.c, respectively, as they are used
in nRF9160 builds, as well.
Signed-off-by: Ioannis Glaropoulos <Ioannis.Glaropoulos@nordicsemi.no>
This commit renames the CLOCK_CONTROL_NRF5 Kconfig symbol to
CLOCK_CONTROL_NRF. The change is required to aleviates confusion
when selecting the symbol in nRF9160 SOC definition.
Signed-off-by: Ioannis Glaropoulos <Ioannis.Glaropoulos@nordicsemi.no>
Add support for Low Speed External 32.768 kHz oscillator (LSE ).
Add support for MSI PLL-Mode offering an automatic calibration feature
in combination with the LSE. This allows the MSI to reach an accurate
+/-0,25% clock perfectly suitable for USB full-speed clock.
Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
