2018-03-21 22:29:59 +08:00
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# Kconfig - STM32 RTC configuration options
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#
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# Copyright (c) 2018 Workaround GmbH
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# Copyright (c) 2018 Allterco Robotics
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#
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# SPDX-License-Identifier: Apache-2.0
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#
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config RTC_STM32
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bool "STM32 RTC Driver"
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depends on SOC_FAMILY_STM32
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select USE_STM32_LL_RTC
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select USE_STM32_LL_PWR
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select USE_STM32_LL_RCC
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select USE_STM32_LL_EXTI
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select NEWLIB_LIBC
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help
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2018-08-18 01:06:22 +08:00
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Build RTC driver for STM32 SoCs. Tested on STM32 F3, F4, L4 series.
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2018-03-21 22:29:59 +08:00
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choice RTC_STM32_CLOCK_SRC
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bool "RTC clock source"
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depends on RTC_STM32
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config RTC_STM32_CLOCK_LSI
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bool "LSI"
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help
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Use LSI as RTC clock
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config RTC_STM32_CLOCK_LSE
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bool "LSE"
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help
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Use LSE as RTC clock
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endchoice #RTC_STM32_CLOCK_SRC
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choice RTC_STM32_LSE_DRIVE
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prompt "LSE oscillator drive capability"
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depends on RTC_STM32_CLOCK_LSE
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config RTC_STM32_LSE_DRIVE_LOW
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bool "Low"
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help
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Xtal mode lower driving capability
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config RTC_STM32_LSE_DRIVE_MEDIUMLOW
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bool "Medium Low"
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help
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Xtal mode medium low driving capability
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config RTC_STM32_LSE_DRIVE_MEDIUMHIGH
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bool "Medium High"
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help
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Xtal mode medium high driving capability
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config RTC_STM32_LSE_DRIVE_HIGH
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bool "High"
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help
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Xtal mode higher driving capability
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endchoice
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config RTC_STM32_LSE_DRIVE_STRENGTH
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hex
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default 0x00000000 if RTC_STM32_LSE_DRIVE_LOW
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default 0x00000008 if RTC_STM32_LSE_DRIVE_MEDIUMLOW
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default 0x00000010 if RTC_STM32_LSE_DRIVE_MEDIUMHIGH
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default 0x00000018 if RTC_STM32_LSE_DRIVE_HIGH
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