Add a function to compute the clock48 from the clock tree
of a stm32f412/f413 mcu. The value depends on its clock source
Requires to identify the PLL source HSE or HSI.
Signed-off-by: Francois Ramu <francois.ramu@st.com>
Add the configuration of the PLL Q divider of main PLL
and I2S_Q of the PLLI2S toset the PLL48MHz clock which feeds
the USB, SDMMC, RNG through the RCC_DCKCFGR2 register.
Signed-off-by: Francois Ramu <francois.ramu@st.com>
The stm32F41x have a PLLI2S M divider for their PLL I2S
but others like the stm32F401 or stm32F74x have the PLL M
divider from the main PLL : might affect the sysclock.
LL Function is the same for configuring the PLL I2S but
parameter could depends on the stm32 serie.
Signed-off-by: Francois Ramu <francois.ramu@st.com>
STM32 MCU shall set voltage regulator level with respect to set clock
frequency to reach optimal power consumption.
Voltage regulator is set prior to clock setting based on configuration
from dts/overlay file. Config_regulator_voltage is set as weak in
clock_stm32_ll_common - config_regulator_voltage can be
extended to other STM32 families without need to rewrite heavily
family clock driver, default one can be still used.
Signed-off-by: Lubos Koudelka <lubos.koudelka@st.com>
Clock must be restored as soon as the SoC leaves standby.
Keep the logic inside the SoC instead of delegate it to the pm
subsystem.
Signed-off-by: Flavio Ceolin <flavio.ceolin@intel.com>
Create clock_stm32_ll_mco.h file to bring stm32_clock_control_mco_init,
mco1_prescaler, mco2_prescaler, MCO1_SOURCE and MCO2_SOURCE definitions
which were previously in clock_stm32_ll_common.{c,h}. This is done so that
stm32_clock_control_mco_init can be called from clock_stm32_ll_h7.c.
Also update Kconfig.stm32 and add new MCO sources to allow H7 support.
Signed-off-by: Johan Lafon <johan.lafon@syslinbit.com>
Add PLLI2S support within clock_control driver.
This implementation is compatible with "st,stm32f412-plli2s-clock"
binding.
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
Add PLLI2S support within clock_control driver.
This implementation is compatible with "st,stm32f4-plli2s-clock"
binding.
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
This enables the MCO clock output pin to be configured through Kconfig on
stm32l4 devices.
Signed-off-by: Armin Brauns <armin.brauns@embedded-solutions.at>
The stm32_clock_control_init is needed for implementation of custom
pm_state_exit_post_ops.
Signed-off-by: Artur Lipowski <Artur.Lipowski@hidglobal.com>
clock_stm32_ll_common.h was missing <stdint.h> and <zephyr/device.h>. It
turns out things worked because <zephyr/init.h> has a forward
declaration of struct device.
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
DT node "st,stm32f105-pll2-clock" already exists but was not actually used
and PLL2 was not being configured.
PLL2 is available on STM32F105/F107 and should be turned off after turning
off PLL and turned on before turning on PLL again since PLL2 can be
used as a source for PLL. Source for PLL2 is always HSE.
Signed-off-by: Pierre-Emmanuel Novac <piernov@piernov.org>
MCO1 is also available on STM32F1 series (on top of STM32F4), allow
selection of MCO1 source with CLOCK_STM32_MCO1_SRC_* Kconfig parameters.
Available MCO1 sources are slightly different between STM32F4
(LSE, HSE, HSI, PLLCLK) and STM32F103 (HSE, HSI, PLLCLK/2, SYSCLK), and
STM32F105/F107 have a few more (EXT_HSE, PLL2CLK, PLLI2SCLK, PLLI2SCLK/2).
MCO1 on STM32F1 does not have a configurable divider (unlike STM32F4),
HAL call only configures source.
STM32F1 do not have MCO2.
Signed-off-by: Pierre-Emmanuel Novac <piernov@piernov.org>
The SOC specific implementations of the clock_stm32_ll_common driver
included the PLL specific functions only when PLL was selected as sysclock.
This commit changes the condition from "STM32_SYSCLK_SRC_PLL"
to "defined(STM32_PLL_ENABLED)".
As a result the pll could also be used as peripheral clock source
in case it is not the sysclock.
Signed-off-by: Thomas Stranger <thomas.stranger@outlook.com>
This commit adds support to select pll outputs as peripheral clock
sources to the stm32 common driver.
With this commit they are only available on
STM32G0, STM32G4, STM32L4, STM32L5, STM32WB, and STM32WL.
Support for STM32F2, and STM32F4, which also have p,q,r dividers,
is not enabled in this commit.
Also, stm32_clock_control_get_subsys_rate is extended to return
the configured frequency in case they are enabled, otherwise 0.
Signed-off-by: Thomas Stranger <thomas.stranger@outlook.com>
All these series share the same defines, and while they are not used
by all socs of the common-driver, this is not exptectd to lead to
any conflict.
By moving the defines they can also be used in clock_stm32_ll_common.c
Additionally, the stm32g0 pll_div define was renamed to pllm
in order to match the other series.
Signed-off-by: Thomas Stranger <thomas.stranger@outlook.com>
Similarly to what was done on U5 and H7 clock_control drivers, enable
device clock source selection.
This is done by:
-providing implementation for clock_control_configure().
-updating clock_control_get_rate() to support various possible clock
sources (SYSCLK, PLLCLK, LSE, LSI, HSI, HSE).
-providing enable_clock() to verify requested clock source exists and
is enabled.
-adding LSI and LSE device tree based initialization to
set_up_fixed_clock_sources().
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
Introduce a set_up_pll configuration function and make PLL configuration
an elementary step of the whole system clock configuration.
To implement this new, function make use of the existing series specific
files which allows series specific configuration when required.
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
To allow transition to device tree based clock configuration on
stm32 targets, rework clock_control driver to use intermediate
STM32_ macros initially defined as the equivalent Kconfig macros
for now.
Propagate the change in all code using these macros.
The reason to introduce these new macros instead of configuring
Kconfig flags using dt kconfigfunctions is that we'll need
to be able to inform users that Kconfig flags are deprecated
once the whole family conversion is done, to encourage
out of tree users to adopt this new configuration scheme.
Note: For now STM32H7 series and code is excluded.
This is the same for some series specific code such as
PLL mul/div for L0/L1 and XTRE prescaler on F1 series.
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
As this header declares a function that uses a cube defined structure
as argument, it should include the matching header.
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
This will export the stm32_clock_control_init function
to restore the clocks after the low power modes.
Signed-off-by: Francois Ramu <francois.ramu@st.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>
Any word started with underscore followed by and uppercase letter or a
second underscore is a reserved word according with C99.
Signed-off-by: Flavio Ceolin <flavio.ceolin@intel.com>
This commit enables STM32Cube LL based driver for stm32f4 series.
This generic driver provides a unified API to clock driver for all
stm32 series.
LL API allows driver to be lightweight and to keep genericity across
stm32 family to ease further devlopment and maintenance.
Change-Id: Ie31ae8f433313787f9c9eda77de41925721d54dd
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
This commit brings code size optimization as suggested by Christer
Weinigel review during review of initial commit for this driver.
It also cleans up useless definition in header file.
Change-Id: Ibeaa2e51570dff21825c60c30ba83d939b31d938
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
This new clock control driver aims at providing a lightweight
generic driver to the whole stm32 family.
Driver is based on LL Cube API and hence is for now available
only for STM32 supporting this API: stm32f3xx and stm32l4xx.
Other families should be supported soon.
Once globally supported, this unique driver will also help
reducing the impact of stm32 clock control heterogeneity in
other drivers.
Change-Id: Id15a8d0d44f03809b2907ef10d6877700459e674
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
Francois Ramu
Joakim Andersson
Lubos Koudelka
Flavio Ceolin
Johan Lafon
Erwan Gouriou
Armin Brauns
Artur Lipowski
Gerard Marull-Paretas
Pierre-Emmanuel Novac
Thomas Stranger
Yaël Boutreux
qianfan Zhao