zephyr/drivers/clock_control/Kconfig.stm32f1
Erwan Gouriou 832a0ec049 drivers/clock_control: stm32f1: Reinstanciate CLOCK_STM32_PLL_XTPRE
This reverts commit "drivers/clock_control: Remove useless
CLOCK_STM32_PLL_XTPRE config" 9be1f7e22f3b3c42009eeba15061cad3c0988b22.

Fixes #32382

Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
2021-02-19 05:22:36 -06:00

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# STM32F1 PLL configuration options
# Copyright (c) 2019 Linaro
# SPDX-License-Identifier: Apache-2.0
if SOC_SERIES_STM32F1X
config CLOCK_STM32_PLL_XTPRE
bool "HSE to PLL /2 prescaler"
depends on SOC_STM32F10X_DENSITY_DEVICE && CLOCK_STM32_PLL_SRC_HSE
help
Enable this option to enable /2 prescaler on HSE to PLL clock signal
config CLOCK_STM32_PLL_MULTIPLIER
int "PLL multiplier"
depends on CLOCK_STM32_SYSCLK_SRC_PLL
default 9
range 2 16 if SOC_STM32F10X_DENSITY_DEVICE
range 4 9 if SOC_STM32F10X_CONNECTIVITY_LINE_DEVICE
help
PLL multiplier, PLL output must not exceed 72MHz. Allowed values:
Density devices: 2-16
Connectivity devices: 4 - 9 and 13 ( used for multiplication factor 6.5).
config CLOCK_STM32_PLL_PREDIV1
int "PREDIV1 Prescaler"
depends on SOC_STM32F10X_CONNECTIVITY_LINE_DEVICE && CLOCK_STM32_SYSCLK_SRC_PLL
default 1
range 1 16
help
PREDIV1 is PLL clock signal prescaler, allowed values: 1 - 16.
endif # SOC_SERIES_STM32F1X