CONFIG_ARM=y
CONFIG_BOARD_DISCO_L475_IOT1=y
CONFIG_SOC_SERIES_STM32L4X=y
CONFIG_SOC_STM32L475XG=y
CONFIG_CORTEX_M_SYSTICK=y
CONFIG_SYS_CLOCK_TICKS_PER_SEC=1000

# enable uart driver
CONFIG_SERIAL=y
CONFIG_UART_INTERRUPT_DRIVEN=y

# enable pinmux
CONFIG_PINMUX=y

# enable GPIO
CONFIG_GPIO=y

# clock configuration
CONFIG_CLOCK_CONTROL=y

# Configure bus clocks
CONFIG_CLOCK_STM32_AHB_PRESCALER=1
CONFIG_CLOCK_STM32_APB1_PRESCALER=1
CONFIG_CLOCK_STM32_APB2_PRESCALER=1

# LSE oscillator is populated, enable MSI PLL-Mode
CONFIG_CLOCK_STM32_LSE=y
CONFIG_CLOCK_STM32_MSI_PLL_MODE=y

# console
CONFIG_CONSOLE=y
CONFIG_UART_CONSOLE=y

# enable MPU
CONFIG_ARM_MPU=y