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boards: stm32vl_disco: Use dts for clocks configuration

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Convert board to use of device tree for clocks configuration.

Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
This commit is contained in:
Erwan Gouriou 2021-05-04 10:42:16 +02:00 • committed by Kumar Gala
commit 60d5003dd0
2 changed files with 19 additions and 13 deletions
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18
boards/arm/stm32vl_disco/stm32vl_disco.dts
View file

@ -46,6 +46,24 @@
}; };
}; };
&clk_hsi {
status = "okay";
};
&pll {
mul = <6>;
clocks = <&clk_hsi>;
status = "okay";
};
&rcc {
clocks = <&pll>;
clock-frequency = <DT_FREQ_M(24)>;
ahb-prescaler = <1>;
apb1-prescaler = <2>;
apb2-prescaler = <1>;
};
&usart1 { &usart1 {
pinctrl-0 = <&usart1_tx_pa9 &usart1_rx_pa10>; pinctrl-0 = <&usart1_tx_pa9 &usart1_rx_pa10>;
current-speed = <115200>; current-speed = <115200>;

14
boards/arm/stm32vl_disco/stm32vl_disco_defconfig
View file

@ -4,9 +4,6 @@
CONFIG_SOC_SERIES_STM32F1X=y CONFIG_SOC_SERIES_STM32F1X=y
CONFIG_SOC_STM32F100XB=y CONFIG_SOC_STM32F100XB=y
# 24MHz system clock
CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC=24000000
# Enable MPU # Enable MPU
CONFIG_ARM_MPU=y CONFIG_ARM_MPU=y
@ -26,14 +23,5 @@ CONFIG_PINMUX=y
# enable GPIO # enable GPIO
CONFIG_GPIO=y CONFIG_GPIO=y
# clock configuration # enable clocks
CONFIG_CLOCK_CONTROL=y CONFIG_CLOCK_CONTROL=y
CONFIG_CLOCK_STM32_SYSCLK_SRC_PLL=y
CONFIG_CLOCK_STM32_PLL_SRC_HSI=y
# produce 24MHz clock from PLL output using 8MHz oscillator on the board
CONFIG_CLOCK_STM32_PLL_MULTIPLIER=6
CONFIG_CLOCK_STM32_AHB_PRESCALER=1
CONFIG_CLOCK_STM32_APB1_PRESCALER=2
CONFIG_CLOCK_STM32_APB2_PRESCALER=1