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boards: stm32f072_eval: Use dts for clocks configuration

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Convert board to use of device tree for clocks configuration.

Signed-off-by: Alexandre Bourdiol <alexandre.bourdiol@st.com>
This commit is contained in:
Alexandre Bourdiol 2021-04-30 17:38:54 +02:00 • committed by Kumar Gala
commit a0de2de6ca
2 changed files with 20 additions and 15 deletions
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19
boards/arm/stm32f072_eval/stm32f072_eval.dts
View file

@ -76,6 +76,25 @@
}; };
}; };
&clk_hse {
clock-frequency = <DT_FREQ_M(8)>;
status = "okay";
};
&pll {
prediv = <1>;
mul = <6>;
clocks = <&clk_hse>;
status = "okay";
};
&rcc {
clocks = <&pll>;
clock-frequency = <DT_FREQ_M(48)>;
ahb-prescaler = <1>;
apb1-prescaler = <1>;
};
&usart2 { &usart2 {
pinctrl-0 = <&usart2_tx_pd5 &usart2_rx_pd6>; pinctrl-0 = <&usart2_tx_pd5 &usart2_rx_pd6>;
current-speed = <115200>; current-speed = <115200>;

16
boards/arm/stm32f072_eval/stm32f072_eval_defconfig
View file

@ -6,9 +6,6 @@ CONFIG_SOC_SERIES_STM32F0X=y
# Platform Configuration # Platform Configuration
CONFIG_SOC_STM32F072XB=y CONFIG_SOC_STM32F072XB=y
# General Kernel Options
CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC=48000000
# Serial Drivers # Serial Drivers
CONFIG_SERIAL=y CONFIG_SERIAL=y
CONFIG_UART_INTERRUPT_DRIVEN=y CONFIG_UART_INTERRUPT_DRIVEN=y
@ -22,16 +19,5 @@ CONFIG_PINMUX=y
# GPIO Controller # GPIO Controller
CONFIG_GPIO=y CONFIG_GPIO=y
# Clock configuration # Enable Clocks
CONFIG_CLOCK_CONTROL=y CONFIG_CLOCK_CONTROL=y
# SYSCLK selection
CONFIG_CLOCK_STM32_SYSCLK_SRC_PLL=y
# HSE configuration
CONFIG_CLOCK_STM32_HSE_CLOCK=8000000
# PLL configuration
CONFIG_CLOCK_STM32_PLL_SRC_HSE=y
# produce 48MHz clock at PLL output
CONFIG_CLOCK_STM32_PLL_PREDIV1=1
CONFIG_CLOCK_STM32_PLL_MULTIPLIER=6
CONFIG_CLOCK_STM32_AHB_PRESCALER=1
CONFIG_CLOCK_STM32_APB1_PRESCALER=1