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>
Some STM32F4xx chips have an R division factor in PLL. Add possibility
to configure that.
Even though the output from the R division is not used, it can be
increased to reduce power consumption.
Signed-off-by: Dawid Niedzwiecki <dawidn@google.com>
According to the reference manual the overdrive should be enabled after
setup of the sysclock (HSE or HSI) and enabling the PLL (PLLON).
The flash latency should be enabled after the PLL has been turned on,
but before switching the system clock to the PLL.
Signed-off-by: Max van Kessel <max_van_kessel@msn.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>
Some Series were calculating the pll output frequency from an
clock source index instead of the clock source frequency.
This commit resolves this issue for l0, l1.
get_pllout_frequency() is only used for PLLCLK, therefore remove it.
F2, F4, and F7 have several pll dividers and might decide to implement
these as clock sources won't need PLLCLK.
Signed-off-by: Thomas Stranger <thomas.stranger@outlook.com>
The function get_pllsrc_frequency is added
with possible source HSI or HSE.
With STM32_PLL_P_ENABLED or STM32_PLL_Q_ENABLED,
this function is used by the clock control driver.
Signed-off-by: Francois Ramu <francois.ramu@st.com>
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>
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>
In order to bring consistency in-tree, migrate all drivers to the new
prefix <zephyr/...>. Note that the conversion has been scripted, refer
to #45388 for more details.
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
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>
The build infrastructure should not be adding the drivers subdirectory
to the include path. Fix the legacy uses that depended on that
addition.
Signed-off-by: Peter Bigot <peter.bigot@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 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>
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>
2019-06-10 10:53:11 -04:00
Renamed from drivers/clock_control/clock_stm32f4x.c (Browse further)
