# 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 = ; }; 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