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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)
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)
DT_COMPAT_ST_MUX_CLOCK := st,stm32-clock-mux
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 $(dt_compat_enabled,$(DT_COMPAT_ST_MUX_CLOCK))
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_LSE
bool "LSE"
depends on SOC_SERIES_STM32F4X
help
Use LSE as source of MCO1
config CLOCK_STM32_MCO1_SRC_HSE
bool "HSE"
depends on SOC_SERIES_STM32F4X
help
Use HSE as source of MCO1
config CLOCK_STM32_MCO1_SRC_HSI
bool "HSI"
depends on SOC_SERIES_STM32F4X
help
Use HSI as source of MCO1
config CLOCK_STM32_MCO1_SRC_PLLCLK
bool "PLLCLK"
depends on SOC_SERIES_STM32F4X
help
Use PLLCLK as source of MCO1
endchoice
config CLOCK_STM32_MCO1_DIV
int "MCO1 prescaler"
depends on !CLOCK_STM32_MCO1_SRC_NOCLOCK
default 1
range 1 5
help
allowed values: 1, 2, 3, 4, 5
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
help
Use SYSCLK as source of MCO2
config CLOCK_STM32_MCO2_SRC_PLLI2S
bool "PLLI2S"
depends on SOC_SERIES_STM32F4X
help
Use PLLI2S as source of MCO2
config CLOCK_STM32_MCO2_SRC_HSE
bool "HSE"
depends on SOC_SERIES_STM32F4X
help
Use HSE as source of MCO2
config CLOCK_STM32_MCO2_SRC_PLLCLK
bool "PLLCLK"
depends on SOC_SERIES_STM32F4X
help
Use PLLCLK as source of MCO2
endchoice
config CLOCK_STM32_MCO2_DIV
int "MCO2 prescaler"
depends on !CLOCK_STM32_MCO2_SRC_NOCLOCK
default 1
range 1 5
help
allowed values: 1, 2, 3, 4, 5
endif # CLOCK_CONTROL_STM32_CUBE