Deprecate support for configuring the MCO source and prescaler from
Kconfig configurations.
This is now done by devicetree and an MCO driver instead, which also
configures the pin to be used by the MCO peripheral.
Signed-off-by: Joakim Andersson <joerchan@gmail.com>
Add device driver for STM32 MCO peripheral which takes configures
the MCO clock source and prescaler, and outputs it on one of the GPIO
pins.
Signed-off-by: Joakim Andersson <joerchan@gmail.com>
Rather setting the driver default in soc, make it directly at symbol
level rather than soc and clean up redundant `select` occurrences.
Signed-off-by: Erwan Gouriou <erwan.gouriou@st.com>
Introduce the stm32h7RS serie to the clock_controller,
based on the stm32h7 clock driver
Datasheet DS14359 rev 1 gives CPU max freq of 500MHz
Signed-off-by: Francois Ramu <francois.ramu@st.com>
Add support for enabling the clock security system, which can detect
failures of the HSE clock.
Includes tests for nucleo_h743zi and nucleo_g474re.
Signed-off-by: Kevin ORourke <kevin.orourke@ferroamp.se>
STM32H5 series lacked support for MCO configuration.
Added SOC_SERIES_STM32H5X to approperiate kconfig MCO source
configurations. Added new MCO sources from H5 series and
updated the clock_stm32_ll_h5.c with MCO configuration.
Signed-off-by: Kacper Dalach <dalachowsky@gmail.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>
The stm32f4 and stm32f7 serie has to compile the stm32_ll_rcc
layer to get the LL_RCC_GetSystemClocksFreq function.
Signed-off-by: Francois Ramu <francois.ramu@st.com>
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>
This enables the MCO clock output pins to be configured through Kconfig on
stm32f7 devices.
Signed-off-by: Armin Brauns <armin.brauns@embedded-solutions.at>
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>
Update clock_control drivers to use DT_HAS_<compat>_ENABLED Kconfig
symbol to expose the driver and enable it by default based on
devicetree.
We remove 'depend on' Kconfig for symbols that would be implied by
the devicetree node existing.
Signed-off-by: Kumar Gala <galak@kernel.org>
Refactors all of the clock control drivers to use a shared driver class
initialization priority configuration,
CONFIG_CLOCK_CONTROL_INIT_PRIORITY, to allow configuring clock control
drivers separately from other devices. This is similar to other driver
classes like I2C and SPI.
Most drivers previously used CONFIG_KERNEL_INIT_PRIORITY_OBJECTS or
CONFIG_KERNEL_INIT_PRIORITY_DEVICE, therefore the default for this new
option is the lower of the two, which means earlier initialization.
The even lower defaults for STM32 and Arm Beetle are preserved by
SoC-family level overrides.
Signed-off-by: Maureen Helm <maureen.helm@intel.com>
In prts of the code, we use rcc node "clocks" property to testify the
use of device tree for clocks configuration.
This doesn't work in case of stm32h7 m4 targets as for those,
"upstream rcc" clock configuration, such as sysclk source selection,
is done on m7 core and hence rcc node doesn't have a "clocks"
property.
To work around this, use alternate "d1cpre" property in case of
stm32h7 targets.
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
Cortex-M4 stm32mp1 zephyr relies on chip Cortex-A for clock
configuration.
No change is then required for conversion to dts based clocks
configuration, but we do need to exclude use of newly deprecated
Kconfig symbols.
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
Add new symbol CLOCK_CONTROL_STM32_HAS_DTS to exclude definition
of other CLOCK_CONTROL_STM32_* symbols when dts based configuration
is in use.
CLOCK_CONTROL_STM32_HAS_DTS is defined based on availability of
"clocks" property in rcc node.
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
Symbol CLOCK_STM32_HSE_CLOCK will remain in use in context of stm32
clock_control configuration using device tree, cf commit
a7989f64a3.
In preparation for next change, separate it from the others symbols
definition. Also make it non dependent from other Kconfig symbols.
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
Kconfig symbol is used in hal_stm32 module to define Cube HAL
symbol HSE_VALUE (cf hal_stm32/stm32cube/CMakeLists.txt).
Due to this specific usage, this symbol should be kept. As a
consequence it could not be replaced by dts equivalent but we can
use dts to configure it.
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
Add HSE,HSI,CSI,PLL as system clock options.
Also add correct configuration of the PLL.
New sysclk options:
- HSI with: CONFIG_CLOCK_STM32_SYSCLK_SRC_HSI=y
- HSE with: CONFIG_CLOCK_STM32_SYSCLK_SRC_HSE=y
- CSI with: CONFIG_CLOCK_STM32_SYSCLK_SRC_CSI=y
Existing sysclk options:
- PLL with: CONFIG_CLOCK_STM32_SYSCLK_SRC_PLL=y
PLL clock options:
- More PLL source clocks:
Existing:
1. HSE with: CONFIG_CLOCK_STM32_PLL_SRC_HSE=y
New:
2. HSI with: CONFIG_CLOCK_STM32_PLL_SRC_HSI=y
3. CSI with: CONFIG_CLOCK_STM32_PLL_SRC_CSI=y
- PLL vco input range is auto-calculated based on PLL DIVM1
-> Example for sysclock 96MHz generated with PLL from HSI
CONFIG_CLOCK_STM32_PLL_SRC_HSI=y
CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC=96000000
CONFIG_CLOCK_STM32_SYSCLK_SRC_PLL=y
CONFIG_CLOCK_STM32_PLL_M_DIVISOR=4
CONFIG_CLOCK_STM32_PLL_N_MULTIPLIER=12
CONFIG_CLOCK_STM32_PLL_P_DIVISOR=2
CONFIG_CLOCK_STM32_PLL_Q_DIVISOR=4
CONFIG_CLOCK_STM32_PLL_R_DIVISOR=2
Use LL_SetFlashLatency function from stm32h7xx_ll_utils.h
instead to setup the correct latency.
Signed-off-by: Jeremy LOCHE <lochejeremy@gmail.com>
When MSI clock is used a source of PLL, it should be possible to
select its frequency range. Fix this.
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
I think people might be reading differences into 'if' and 'depends on'
that aren't there, like maybe 'if' being needed to "hide" a symbol,
while 'depends on' just adds a dependency.
There are no differences between 'if' and 'depends on'. 'if' is just a
shorthand for 'depends on'. They work the same when it comes to creating
implicit menus too.
The way symbols get "hidden" is through their dependencies not being
satisfied ('if'/'depends on' get copied up as a dependency on the
prompt).
Since 'if' and 'depends on' are the same, an 'if' with just a single
symbol in it can be replaced with a 'depends on'. IMO, it's best to
avoid 'if' there as a style choice too, because it confuses people into
thinking there's deep Kconfig magic going on that requires 'if'.
Going for 'depends on' can also remove some nested 'if's, which
generates nicer symbol information and docs, because nested 'if's really
are so simple/dumb that they just add the dependencies from both 'if's
to all symbols within.
Replace a bunch of single-symbol 'if's with 'depends on' to despam the
Kconfig files a bit and make it clearer how things work. Also do some
other minor related dependency refactoring.
The replacement isn't complete. Will fix up the rest later. Splitting it
a bit to make it more manageable.
(Everything above is true for choices, menus, and comments as well.)
Detected by tweaking the Kconfiglib parsing code. It's impossible to
detect after parsing, because 'if' turns into 'depends on'.
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
Use this short header style in all Kconfig files:
# <description>
# <copyright>
# <license>
...
Also change all <description>s from
# Kconfig[.extension] - Foo-related options
to just
# Foo-related options
It's clear enough that it's about Kconfig.
The <description> cleanup was done with this command, along with some
manual cleanup (big letter at the start, etc.)
git ls-files '*Kconfig*' | \
xargs sed -i -E '1 s/#\s*Kconfig[\w.-]*\s*-\s*/# /'
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
Clean up space errors and use a consistent style throughout the Kconfig
files. This makes reading the Kconfig files more distraction-free, helps
with grepping, and encourages the same style getting copied around
everywhere (meaning another pass hopefully won't be needed).
Go for the most common style:
- Indent properties with a single tab, including for choices.
Properties on choices work exactly the same syntactically as
properties on symbols, so not sure how the no-indentation thing
happened.
- Indent help texts with a tab followed by two spaces
- Put a space between 'config' and the symbol name, not a tab. This
also helps when grepping for definitions.
- Do '# A comment' instead of '#A comment'
I tweaked Kconfiglib a bit to find most of the stuff.
Some help texts were reflowed to 79 columns with 'gq' in Vim as well,
though not all, because I was afraid I'd accidentally mess up
formatting.
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@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>
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>
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>
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>
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>
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 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>
Consistently use
config FOO
bool/int/hex/string "Prompt text"
instead of
config FOO
bool/int/hex/string
prompt "Prompt text"
(...and a bunch of other variations that e.g. swapped the order of the
type and the 'prompt', or put other properties between them).
The shorthand is fully equivalent to using 'prompt'. It saves lines and
avoids tricking people into thinking there is some semantic difference.
Most of the grunt work was done by a modified version of
https://unix.stackexchange.com/questions/26284/how-can-i-use-sed-to-replace-a-multi-line-string/26290#26290, but some
of the rarer variations had to be converted manually.
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
Bool symbols implicitly default to 'n'.
A 'default n' can make sense e.g. in a Kconfig.defconfig file, if you
want to override a 'default y' on the base definition of the symbol. It
isn't used like that on any of these symbols though, and is
inconsistent.
This will make the auto-generated Kconfig documentation have "No
defaults. Implicitly defaults to n." as well, which is clearer than
'default n if ...'
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
MSI clock signal can be selected in several ranges.
These ranges should be taken into account for calculating its
frequency and hence global system frequency.
Provide a Kconfig option to set MSI range.
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
Signed-off-by: Christophe Priouzeau <christophe.priouzeau@st.com>
In stm32 clock_control driver, Kconfig symbol CLOCK_STM32_PLL_PREDIV1
in stm32f3 series was set as conditional on the activation of some
specific STM32F3 SoCs that are not supported yet in Zephyr.
Remove this flag.
In order not to loose a rather studious part of code, comment it out
and set a TODO to specify how to re-enable it once it will be
required.
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
