diff --git a/boards/arm/stm32f411e_disco/stm32f411e_disco.dts b/boards/arm/stm32f411e_disco/stm32f411e_disco.dts index 2f5e7e7287b..3b22981c18b 100644 --- a/boards/arm/stm32f411e_disco/stm32f411e_disco.dts +++ b/boards/arm/stm32f411e_disco/stm32f411e_disco.dts @@ -76,6 +76,28 @@ }; }; +&clk_hse { + clock-frequency = ; + status = "okay"; +}; + +&pll { + div-m = <4>; + mul-n = <96>; + div-p = <2>; + div-q = <4>; + clocks = <&clk_hse>; + status = "okay"; +}; + +&rcc { + clocks = <&pll>; + clock-frequency = ; + ahb-prescaler = <1>; + apb1-prescaler = <2>; + apb2-prescaler = <1>; +}; + &timers4 { status = "okay"; diff --git a/boards/arm/stm32f411e_disco/stm32f411e_disco_defconfig b/boards/arm/stm32f411e_disco/stm32f411e_disco_defconfig index ec87e12466d..c3678dd5e19 100644 --- a/boards/arm/stm32f411e_disco/stm32f411e_disco_defconfig +++ b/boards/arm/stm32f411e_disco/stm32f411e_disco_defconfig @@ -2,8 +2,6 @@ CONFIG_SOC_SERIES_STM32F4X=y CONFIG_SOC_STM32F411XE=y -# 96MHz system clock (highest value to get a precise USB clock should be 96MHz) -CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC=96000000 # Enable MPU CONFIG_ARM_MPU=y @@ -23,19 +21,5 @@ CONFIG_PINMUX=y # enable GPIO CONFIG_GPIO=y -# clock configuration +# Enable Clocks CONFIG_CLOCK_CONTROL=y -# SYSCLK selection -CONFIG_CLOCK_STM32_SYSCLK_SRC_PLL=y -# HSE configuration -CONFIG_CLOCK_STM32_HSE_CLOCK=8000000 -# use HSE as PLL input -CONFIG_CLOCK_STM32_PLL_SRC_HSE=y -# produce 96MHz clock at PLL output -CONFIG_CLOCK_STM32_PLL_M_DIVISOR=4 -CONFIG_CLOCK_STM32_PLL_N_MULTIPLIER=96 -CONFIG_CLOCK_STM32_PLL_P_DIVISOR=2 -CONFIG_CLOCK_STM32_PLL_Q_DIVISOR=4 -CONFIG_CLOCK_STM32_AHB_PRESCALER=1 -CONFIG_CLOCK_STM32_APB1_PRESCALER=2 -CONFIG_CLOCK_STM32_APB2_PRESCALER=1