diff options
Diffstat (limited to 'chip/stm32/system.c')
| -rw-r--r-- | chip/stm32/system.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/chip/stm32/system.c b/chip/stm32/system.c index 90a248eafa..e906234f19 100644 --- a/chip/stm32/system.c +++ b/chip/stm32/system.c @@ -193,6 +193,10 @@ void system_pre_init(void) clock_wait_bus_cycles(BUS_APB, 1); /* Enable access to RCC CSR register and RTC backup registers */ STM32_PWR_CR |= 1 << 8; +#ifdef CHIP_FAMILY_STM32L4 + /* Enable Vddio2 */ + STM32_PWR_CR2 |= 1 << 9; +#endif /* switch on LSI */ STM32_RCC_CSR |= 1 << 0; |