clock_control: stm32: Add support for MSI PLL MODE

Add support for Low Speed External 32.768 kHz oscillator (LSE ).
Add support for MSI PLL-Mode offering an automatic calibration feature
in combination with the LSE. This allows the MSI to reach an accurate
+/-0,25% clock perfectly suitable for USB full-speed clock.

Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
This commit is contained in:
Loic Poulain 2018-07-11 11:44:02 +02:00 committed by Anas Nashif
commit 85b8a6b84b
4 changed files with 39 additions and 1 deletions

View file

@ -44,6 +44,7 @@
#include <stm32l4xx_ll_bus.h>
#include <stm32l4xx_ll_rcc.h>
#include <stm32l4xx_ll_system.h>
#include <stm32l4xx_ll_pwr.h>
#endif /* CONFIG_CLOCK_CONTROL_STM32_CUBE */
#ifdef CONFIG_SPI_STM32