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boards: b_l072z_lrwan1: 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 15:06:12 +02:00 • committed by Maureen Helm
commit 3a6af0635e
2 changed files with 20 additions and 13 deletions
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19
boards/arm/b_l072z_lrwan1/b_l072z_lrwan1.dts
View file

@ -59,6 +59,25 @@
};
};
&clk_hsi {
status = "okay";
};
&pll {
div = <2>;
mul = <4>;
clocks = <&clk_hsi>;
status = "okay";
};
&rcc {
clocks = <&pll>;
clock-frequency = <DT_FREQ_M(32)>;
ahb-prescaler = <1>;
apb1-prescaler = <1>;
apb2-prescaler = <1>;
};
arduino_usart: &usart1 {};
arduino_spi: &spi2 {};
arduino_i2c: &i2c1 {};

14
boards/arm/b_l072z_lrwan1/b_l072z_lrwan1_defconfig
View file

@ -7,23 +7,11 @@ CONFIG_SOC_SERIES_STM32L0X=y
CONFIG_SOC_STM32L072XX=y
CONFIG_BOARD_B_L072Z_LRWAN1=y
# General Kernel Options
CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC=32000000
# Enable MPU
CONFIG_ARM_MPU=y
# Clock configuration
# Enable Clocks
CONFIG_CLOCK_CONTROL=y
# SYSCLK selection
CONFIG_CLOCK_STM32_SYSCLK_SRC_PLL=y
# Use HSI source
CONFIG_CLOCK_STM32_PLL_SRC_HSI=y
CONFIG_CLOCK_STM32_PLL_DIVISOR=2
# produce 32Mhz clock at PLL output
CONFIG_CLOCK_STM32_PLL_MULTIPLIER=4
CONFIG_CLOCK_STM32_AHB_PRESCALER=1
CONFIG_CLOCK_STM32_APB1_PRESCALER=1
# Serial Drivers
CONFIG_SERIAL=y