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boards: 96b_wistrio: 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 14:14:21 +02:00 • committed by Maureen Helm
commit 976c9a1f78
2 changed files with 20 additions and 12 deletions
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19
boards/arm/96b_wistrio/96b_wistrio.dts
View file

@ -39,6 +39,25 @@
};
};
&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>;
};
&usart1 {
pinctrl-0 = <&usart1_tx_pa9 &usart1_rx_pa10>;
current-speed = <115200>;

13
boards/arm/96b_wistrio/96b_wistrio_defconfig
View file

@ -1,7 +1,5 @@
CONFIG_SOC_SERIES_STM32L1X=y
CONFIG_SOC_STM32L151XBA=y
# 32MHz system clock
CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC=32000000
# Enable MPU
CONFIG_ARM_MPU=y
@ -18,17 +16,8 @@ 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
# 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
# console
CONFIG_CONSOLE=y