From 18de8457cfac94c0905c871341d645b08a47e33a Mon Sep 17 00:00:00 2001 From: Alexandre Bourdiol Date: Fri, 30 Apr 2021 10:13:59 +0200 Subject: [PATCH] boards: nucleo_l452re: Use dts for clocks configuration Convert board to use of device tree for clocks configuration. Signed-off-by: Alexandre Bourdiol --- .../nucleo_l452re/nucleo_l452re_common.dtsi | 22 +++++++++++++++++++ .../arm/nucleo_l452re/nucleo_l452re_defconfig | 17 +------------- .../nucleo_l452re/nucleo_l452re_p_defconfig | 17 +------------- 3 files changed, 24 insertions(+), 32 deletions(-) diff --git a/boards/arm/nucleo_l452re/nucleo_l452re_common.dtsi b/boards/arm/nucleo_l452re/nucleo_l452re_common.dtsi index 583ea99a044..cf1a4995363 100644 --- a/boards/arm/nucleo_l452re/nucleo_l452re_common.dtsi +++ b/boards/arm/nucleo_l452re/nucleo_l452re_common.dtsi @@ -34,6 +34,28 @@ }; }; +&clk_hsi { + status = "okay"; +}; + +&pll { + div-m = <1>; + mul-n = <20>; + div-p = <7>; + div-q = <2>; + div-r = <4>; + clocks = <&clk_hsi>; + status = "okay"; +}; + +&rcc { + clocks = <&pll>; + clock-frequency = ; + ahb-prescaler = <1>; + apb1-prescaler = <1>; + apb2-prescaler = <1>; +}; + &usart1 { pinctrl-0 = <&usart1_tx_pa9 &usart1_rx_pa10>; current-speed = <115200>; diff --git a/boards/arm/nucleo_l452re/nucleo_l452re_defconfig b/boards/arm/nucleo_l452re/nucleo_l452re_defconfig index a4f29fa62b6..ceeb7347825 100644 --- a/boards/arm/nucleo_l452re/nucleo_l452re_defconfig +++ b/boards/arm/nucleo_l452re/nucleo_l452re_defconfig @@ -2,8 +2,6 @@ CONFIG_SOC_SERIES_STM32L4X=y CONFIG_SOC_STM32L452XX=y -# 80MHz system clock -CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC=80000000 # enable uart driver CONFIG_SERIAL=y @@ -20,21 +18,8 @@ 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 -# PLL configuration -CONFIG_CLOCK_STM32_PLL_SRC_HSI=y -# produce 80MHz clock at PLL output -CONFIG_CLOCK_STM32_PLL_M_DIVISOR=1 -CONFIG_CLOCK_STM32_PLL_N_MULTIPLIER=20 -CONFIG_CLOCK_STM32_PLL_P_DIVISOR=7 -CONFIG_CLOCK_STM32_PLL_Q_DIVISOR=2 -CONFIG_CLOCK_STM32_PLL_R_DIVISOR=4 -CONFIG_CLOCK_STM32_AHB_PRESCALER=1 -CONFIG_CLOCK_STM32_APB1_PRESCALER=1 -CONFIG_CLOCK_STM32_APB2_PRESCALER=1 # console CONFIG_CONSOLE=y diff --git a/boards/arm/nucleo_l452re/nucleo_l452re_p_defconfig b/boards/arm/nucleo_l452re/nucleo_l452re_p_defconfig index a4f29fa62b6..ceeb7347825 100644 --- a/boards/arm/nucleo_l452re/nucleo_l452re_p_defconfig +++ b/boards/arm/nucleo_l452re/nucleo_l452re_p_defconfig @@ -2,8 +2,6 @@ CONFIG_SOC_SERIES_STM32L4X=y CONFIG_SOC_STM32L452XX=y -# 80MHz system clock -CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC=80000000 # enable uart driver CONFIG_SERIAL=y @@ -20,21 +18,8 @@ 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 -# PLL configuration -CONFIG_CLOCK_STM32_PLL_SRC_HSI=y -# produce 80MHz clock at PLL output -CONFIG_CLOCK_STM32_PLL_M_DIVISOR=1 -CONFIG_CLOCK_STM32_PLL_N_MULTIPLIER=20 -CONFIG_CLOCK_STM32_PLL_P_DIVISOR=7 -CONFIG_CLOCK_STM32_PLL_Q_DIVISOR=2 -CONFIG_CLOCK_STM32_PLL_R_DIVISOR=4 -CONFIG_CLOCK_STM32_AHB_PRESCALER=1 -CONFIG_CLOCK_STM32_APB1_PRESCALER=1 -CONFIG_CLOCK_STM32_APB2_PRESCALER=1 # console CONFIG_CONSOLE=y