zephyr/drivers/clock_control/Kconfig.stm32f1
Erwan Gouriou 785ecf0991 drivers/clock_control: stm32f1: Deal with stm32f100xx devices
According to RM0041.pdf clock tree for stm32f100xx devices is
different from both STM32F10X density and connectivity lines devices,
but is a combination of both.

Rework symbols definitions so that STM32F100xx is neither of those
and uses:
- CLOCK_STM32_PLL_MULTIPLIER as on SOC_STM32F10X_DENSITY_DEVICE
- CLOCK_STM32_PLL_PREDIV1 as on SOC_STM32F10X_CONNECTIVITY_LINE_...

Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
2021-05-04 13:02:26 -05:00

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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_CONNECTIVITY_LINE_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_DENSITY_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