From 6cbeabc8a4eeb7c8786533c9b19da715030be869 Mon Sep 17 00:00:00 2001 From: Alexandre Bourdiol Date: Fri, 30 Apr 2021 10:18:55 +0200 Subject: [PATCH] boards: nucleo_l496zg: Use dts for clocks configuration Convert board to use of device tree for clocks configuration. Signed-off-by: Alexandre Bourdiol --- boards/arm/nucleo_l496zg/nucleo_l496zg.dts | 22 +++++++++++++++++++ .../arm/nucleo_l496zg/nucleo_l496zg_defconfig | 17 +------------- 2 files changed, 23 insertions(+), 16 deletions(-) diff --git a/boards/arm/nucleo_l496zg/nucleo_l496zg.dts b/boards/arm/nucleo_l496zg/nucleo_l496zg.dts index 2cc6942c4bc..c07bf5a5939 100644 --- a/boards/arm/nucleo_l496zg/nucleo_l496zg.dts +++ b/boards/arm/nucleo_l496zg/nucleo_l496zg.dts @@ -61,6 +61,28 @@ }; }; +&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>; +}; + &usart2 { pinctrl-0 = <&usart2_tx_pd5 &usart2_rx_pd6>; current-speed = <115200>; diff --git a/boards/arm/nucleo_l496zg/nucleo_l496zg_defconfig b/boards/arm/nucleo_l496zg/nucleo_l496zg_defconfig index 87ea9d73683..f0e9a804c75 100644 --- a/boards/arm/nucleo_l496zg/nucleo_l496zg_defconfig +++ b/boards/arm/nucleo_l496zg/nucleo_l496zg_defconfig @@ -2,8 +2,6 @@ CONFIG_SOC_SERIES_STM32L4X=y CONFIG_SOC_STM32L496XX=y -# 80MHz system clock -CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC=80000000 # enable uart driver CONFIG_SERIAL=y @@ -14,21 +12,8 @@ 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