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Kconfig.stm32
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# STM32 MCU clock control driver config
# Copyright (c) 2017 Linaro
# Copyright (c) 2017 RnDity Sp. z o.o.
# SPDX-License-Identifier: Apache-2.0
menuconfig CLOCK_CONTROL_STM32_CUBE
bool "STM32 Reset & Clock Control"
depends on SOC_FAMILY_STM32
select USE_STM32_LL_UTILS
select USE_STM32_LL_RCC if (SOC_SERIES_STM32MP1X || SOC_SERIES_STM32H7X || \
SOC_SERIES_STM32H7RSX || SOC_SERIES_STM32F4X || SOC_SERIES_STM32F7X)
select RUNTIME_NMI if ($(dt_nodelabel_enabled,clk_hse) && \
$(dt_nodelabel_has_prop,clk_hse,css-enabled))
help
Enable driver for Reset & Clock Control subsystem found
in STM32 family of MCUs
if CLOCK_CONTROL_STM32_CUBE
DT_STM32_HSE_CLOCK := $(dt_nodelabel_path,clk_hse)
DT_STM32_HSE_CLOCK_FREQ := $(dt_node_int_prop_int,$(DT_STM32_HSE_CLOCK),clock-frequency)
config CLOCK_STM32_HSE_CLOCK
int "HSE clock value"
default "$(DT_STM32_HSE_CLOCK_FREQ)" if "$(dt_nodelabel_enabled,clk_hse)"
default 8000000
help
Value of external high-speed clock (HSE). This symbol could be optionally
configured using device tree by setting "clock-frequency" value of clk_hse
node. For instance:
&clk_hse{
status = "okay";
clock-frequency = <DT_FREQ_M(25)>;
};
Note: Device tree configuration is overridden when current symbol is set:
CONFIG_CLOCK_STM32_HSE_CLOCK=32000000
config CLOCK_STM32_MUX
bool "STM32 clock mux driver"
default y
depends on DT_HAS_ST_STM32_CLOCK_MUX_ENABLED
help
Enable driver for STM32 clock mux which don't match an
existing clock hardware block but allows to select a clock
for a specific domain. For instance per_ck clock on STM32H7 or
CLK48 clock
# Micro-controller Clock output configuration options
choice
prompt "STM32 MCO1 Clock Source"
default CLOCK_STM32_MCO1_SRC_NOCLOCK
config CLOCK_STM32_MCO1_SRC_NOCLOCK
bool "NOCLOCK"
help
MCO1 output disabled, no clock on MCO1
config CLOCK_STM32_MCO1_SRC_EXT_HSE
bool "EXT_HSE"
depends on SOC_STM32F10X_CONNECTIVITY_LINE_DEVICE
help
Use EXT_HSE as source of MCO1
config CLOCK_STM32_MCO1_SRC_LSE
bool "LSE"
depends on SOC_SERIES_STM32F4X || \
SOC_SERIES_STM32F7X || \
SOC_SERIES_STM32L4X || \
SOC_SERIES_STM32H7X || \
SOC_SERIES_STM32H7RSX || \
SOC_SERIES_STM32H5X
help
Use LSE as source of MCO1
config CLOCK_STM32_MCO1_SRC_HSE
bool "HSE"
depends on SOC_SERIES_STM32F1X || \
SOC_SERIES_STM32F4X || \
SOC_SERIES_STM32F7X || \
SOC_SERIES_STM32L4X || \
SOC_SERIES_STM32H7X || \
SOC_SERIES_STM32H7RSX || \
SOC_SERIES_STM32H5X
help
Use HSE as source of MCO1
config CLOCK_STM32_MCO1_SRC_LSI
bool "LSI"
depends on SOC_SERIES_STM32L4X
help
Use LSI as source of MCO1
config CLOCK_STM32_MCO1_SRC_MSI
bool "MSI"
depends on SOC_SERIES_STM32L4X
help
Use MSI as source of MCO1
config CLOCK_STM32_MCO1_SRC_HSI
bool "HSI"
depends on SOC_SERIES_STM32F1X || \
SOC_SERIES_STM32F4X || \
SOC_SERIES_STM32F7X || \
SOC_SERIES_STM32H7X || \
SOC_SERIES_STM32H7RSX || \
SOC_SERIES_STM32H5X
help
Use HSI as source of MCO1
config CLOCK_STM32_MCO1_SRC_HSI16
bool "HSI16"
depends on SOC_SERIES_STM32L4X
help
Use HSI16 as source of MCO1
config CLOCK_STM32_MCO1_SRC_HSI48
bool "HSI48"
depends on SOC_SERIES_STM32L4X || \
SOC_SERIES_STM32H7X || \
SOC_SERIES_STM32H7RSX || \
SOC_SERIES_STM32H5X
help
Use HSI48 as source of MCO1
config CLOCK_STM32_MCO1_SRC_PLLCLK
bool "PLLCLK"
depends on SOC_SERIES_STM32F4X || SOC_SERIES_STM32F7X || SOC_SERIES_STM32L4X
help
Use PLLCLK as source of MCO1
config CLOCK_STM32_MCO1_SRC_PLLQCLK
bool "PLLQ"
depends on SOC_SERIES_STM32H7X || \
SOC_SERIES_STM32H7RSX || \
SOC_SERIES_STM32H5X
help
Use PLLQ as source of MCO1
config CLOCK_STM32_MCO1_SRC_PLLCLK_DIV2
bool "PLLCLK_DIV2"
depends on SOC_SERIES_STM32F1X
help
Use PLLCLK/2 as source of MCO1
config CLOCK_STM32_MCO1_SRC_PLL2CLK
bool "PLL2CLK"
depends on SOC_STM32F10X_CONNECTIVITY_LINE_DEVICE
help
Use PLL2CLK as source of MCO1
config CLOCK_STM32_MCO1_SRC_PLLI2SCLK
bool "PLLI2SCLK"
depends on SOC_STM32F10X_CONNECTIVITY_LINE_DEVICE
help
Use PLLI2SCLK as source of MCO1
config CLOCK_STM32_MCO1_SRC_PLLI2SCLK_DIV2
bool "PLLI2SCLK_DIV2"
depends on SOC_STM32F10X_CONNECTIVITY_LINE_DEVICE
help
Use PLLI2SCLK/2 as source of MCO1
config CLOCK_STM32_MCO1_SRC_SYSCLK
bool "SYSCLK"
depends on SOC_SERIES_STM32F1X || SOC_SERIES_STM32L4X
help
Use SYSCLK as source of MCO1
endchoice
config CLOCK_STM32_MCO1_DIV
int "MCO1 prescaler"
depends on !CLOCK_STM32_MCO1_SRC_NOCLOCK && (\
SOC_SERIES_STM32F4X || \
SOC_SERIES_STM32F7X || \
SOC_SERIES_STM32L4X || \
SOC_SERIES_STM32H7X || \
SOC_SERIES_STM32H7RSX || \
SOC_SERIES_STM32H5X \
)
default 1
range 1 5 if SOC_SERIES_STM32F4X || SOC_SERIES_STM32F7X
range 1 15 if SOC_SERIES_STM32H7X || SOC_SERIES_STM32H7RSX || SOC_SERIES_STM32H5X
range 1 16 if SOC_SERIES_STM32L4X
help
Prescaler for MCO1 output clock
choice
prompt "STM32 MCO2 Clock Source"
default CLOCK_STM32_MCO2_SRC_NOCLOCK
config CLOCK_STM32_MCO2_SRC_NOCLOCK
bool "NOCLOCK"
help
MCO2 output disabled, no clock on MCO2
config CLOCK_STM32_MCO2_SRC_SYSCLK
bool "SYSCLK"
depends on SOC_SERIES_STM32F4X || \
SOC_SERIES_STM32F7X || \
SOC_SERIES_STM32H7X || \
SOC_SERIES_STM32H7RSX || \
SOC_SERIES_STM32H5X
help
Use SYSCLK as source of MCO2
config CLOCK_STM32_MCO2_SRC_PLLI2S
bool "PLLI2S"
depends on SOC_SERIES_STM32F4X || SOC_SERIES_STM32F7X
help
Use PLLI2S as source of MCO2
config CLOCK_STM32_MCO2_SRC_HSE
bool "HSE"
depends on SOC_SERIES_STM32F4X || \
SOC_SERIES_STM32F7X || \
SOC_SERIES_STM32H7X || \
SOC_SERIES_STM32H7RSX || \
SOC_SERIES_STM32H5X
help
Use HSE as source of MCO2
config CLOCK_STM32_MCO2_SRC_LSI
bool "LSI"
depends on SOC_SERIES_STM32H7X || \
SOC_SERIES_STM32H7RSX || \
SOC_SERIES_STM32H5X
help
Use LSI as source of MCO2
config CLOCK_STM32_MCO2_SRC_CSI
bool "CSI"
depends on SOC_SERIES_STM32H7X || \
SOC_SERIES_STM32H7RSX || \
SOC_SERIES_STM32H5X
help
Use CSI as source of MCO2
config CLOCK_STM32_MCO2_SRC_PLLCLK
bool "PLLCLK"
depends on SOC_SERIES_STM32F4X || SOC_SERIES_STM32F7X
help
Use PLLCLK as source of MCO2
config CLOCK_STM32_MCO2_SRC_PLLPCLK
bool "PLLPCLK"
depends on SOC_SERIES_STM32H7X || \
SOC_SERIES_STM32H7RSX || \
SOC_SERIES_STM32H5X
help
Use PLLPCLK as source of MC02
config CLOCK_STM32_MCO2_SRC_PLL2PCLK
bool "PLL2PCLK"
depends on SOC_SERIES_STM32H7X || \
SOC_SERIES_STM32H7RSX || \
SOC_SERIES_STM32H5X
help
Use PLL2PCLK as source of MC02
endchoice
config CLOCK_STM32_MCO2_DIV
int "MCO2 prescaler"
depends on !CLOCK_STM32_MCO2_SRC_NOCLOCK && (\
SOC_SERIES_STM32F4X || \
SOC_SERIES_STM32F7X || \
SOC_SERIES_STM32H5X || \
SOC_SERIES_STM32H7X || \
SOC_SERIES_STM32H7RSX \
)
default 1
range 1 5 if SOC_SERIES_STM32F4X || SOC_SERIES_STM32F7X
range 1 15 if SOC_SERIES_STM32H7X || SOC_SERIES_STM32H7RSX || SOC_SERIES_STM32H5X
help
Prescaler for MCO2 output clock
endif # CLOCK_CONTROL_STM32_CUBE