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- #
- # RTC drivers configuration
- #
- menu "Real Time Clock"
- config DM_RTC
- bool "Enable Driver Model for RTC drivers"
- depends on DM
- select LIB_DATE
- help
- Enable drver model for real-time-clock drivers. The RTC uclass
- then provides the rtc_get()/rtc_set() interface, delegating to
- drivers to perform the actual functions. See rtc.h for a
- description of the API.
- config SPL_DM_RTC
- bool "Enable Driver Model for RTC drivers in SPL"
- depends on SPL_DM
- help
- Enable drver model for real-time-clock drivers. The RTC uclass
- then provides the rtc_get()/rtc_set() interface, delegating to
- drivers to perform the actual functions. See rtc.h for a
- description of the API.
- config TPL_DM_RTC
- bool "Enable Driver Model for RTC drivers in TPL"
- depends on TPL_DM
- help
- Enable drver model for real-time-clock drivers. The RTC uclass
- then provides the rtc_get()/rtc_set() interface, delegating to
- drivers to perform the actual functions. See rtc.h for a
- description of the API.
- config RTC_ENABLE_32KHZ_OUTPUT
- bool "Enable RTC 32Khz output"
- help
- Some real-time clocks support the output of 32kHz square waves (such as ds3231),
- the config symbol choose Real Time Clock device 32Khz output feature.
- config RTC_ARMADA38X
- bool "Enable Armada 38x Marvell SoC RTC"
- depends on DM_RTC && ARCH_MVEBU
- help
- This adds support for the in-chip RTC that can be found in the
- Armada 38x Marvell's SoC devices.
- config RTC_PCF2127
- bool "Enable PCF2127 driver"
- depends on DM_RTC
- help
- The PCF2127 is a CMOS Real Time Clock (RTC) and calendar with an integrated
- Temperature Compensated Crystal (Xtal) Oscillator (TCXO) and a 32.768 kHz quartz
- crystal optimized for very high accuracy and very low power consumption. The PCF2127
- has a selectable I2C-bus or SPI-bus, a backup battery switch-over circuit, a
- programmable watchdog function, a timestamp function, and many other features.
- config RTC_DS1307
- bool "Enable DS1307 driver"
- depends on DM_RTC
- help
- Support for Dallas Semiconductor (now Maxim) DS1307 and DS1338/9 and
- compatible Real Time Clock devices.
- config RTC_DS3232
- bool "Enable DS3232 driver"
- depends on DM_RTC
- depends on DM_I2C
- help
- Support for Dallas Semiconductor (now Maxim) DS3232 compatible
- Real Time Clock devices.
- config RTC_EMULATION
- bool "Enable emulated RTC"
- depends on DM_RTC
- help
- On a board without hardware clock this software real time clock can be
- used. The initial time may be provided via the environment variable
- 'rtc_emul_epoch' as a decimal string indicating seconds since
- 1970-01-01. If the environment variable is missing, the build time is
- used to initialize the RTC. The time can be adjusted manually via the
- 'date' command or the 'sntp' command can be used to update the RTC
- with the time from a network time server. See CONFIG_CMD_SNTP and
- CONFIG_BOOTP_NTPSERVER. The RTC time is advanced according to CPU
- ticks.
- config RTC_ISL1208
- bool "Enable ISL1208 driver"
- depends on DM_RTC
- help
- The Renesas (formerly Intersil) ISL1208 is a I2C Real Time Clock (RTC) and
- calendar with automatic leap year correction, 2-byte battery backed SRAM,
- automatic power switch-over, alarm function and 15 selectable frequency
- outputs.
- This driver supports reading and writing the RTC/calendar and detects
- total power failures.
- config RTC_PCF8563
- tristate "Philips PCF8563"
- help
- If you say yes here you get support for the Philips PCF8563 RTC
- and compatible chips.
- config RTC_RV3028
- bool "Enable RV3028 driver"
- depends on DM_RTC
- help
- The MicroCrystal RV3028 is a I2C Real Time Clock (RTC)
- config RTC_RV3029
- bool "Enable RV3029 driver"
- depends on DM_RTC
- help
- The MicroCrystal RV3029 is a I2C Real Time Clock (RTC) with 8-byte
- battery-backed SRAM.
- This driver supports reading and writing the RTC/calendar and the
- battery-baced SRAM section.
- config RTC_RV8803
- bool "Enable RV8803 driver"
- depends on DM_RTC
- help
- The Micro Crystal RV8803 is a high accuracy, ultra-low power I2C
- Real Time Clock (RTC) with temperature compensation.
- This driver supports reading and writing the RTC/calendar and
- detects total power failures.
- config RTC_RX8010SJ
- bool "Enable RX8010SJ driver"
- depends on DM_RTC
- help
- Support for Epson RX8010SJ Real Time Clock devices.
- config RTC_RX8025
- bool "Enable RX8025 driver"
- help
- Support for Epson RX8025 Real Time Clock devices.
- config RTC_PL031
- bool "Enable ARM AMBA PL031 RTC driver"
- help
- The ARM PrimeCell Real Time Clock (PL031) is an optional SoC
- peripheral based on the Advanced Microcontroller Bus Architecture
- (AMBA). It is emulated in QEMU virtual ARM machines.
- config RTC_MV
- bool "Enable Marvell RTC driver"
- depends on DM_RTC
- help
- Enable Marvell RTC driver. This driver supports the rtc that is present
- on some Marvell SoCs.
- config RTC_S35392A
- bool "Enable S35392A driver"
- select BITREVERSE
- help
- Enable s35392a driver which provides rtc get and set function.
- config RTC_MC146818
- bool "Enable MC146818 driver"
- help
- This is a widely used real-time clock chip originally by Motorola
- and now available from NXP. It includes a battery-backed real-time
- clock with a wide array of features and 50 bytes of general-purpose,
- battery-backed RAM. The driver supports access to the clock and RAM.
- config RTC_M41T62
- bool "Enable M41T62 driver"
- help
- Enable driver for ST's M41T62 compatible RTC devices (like RV-4162).
- It is a serial (I2C) real-time clock (RTC) with alarm.
- config RTC_STM32
- bool "Enable STM32 RTC driver"
- depends on DM_RTC
- help
- Enable STM32 RTC driver. This driver supports the rtc that is present
- on some STM32 SoCs.
- config RTC_ABX80X
- bool "Enable Abracon ABx80x RTC driver"
- depends on DM_RTC
- help
- If you say yes here you get support for Abracon AB080X and AB180X
- families of ultra-low-power battery- and capacitor-backed real-time
- clock chips.
- config RTC_DAVINCI
- bool "Enable TI OMAP RTC driver"
- depends on ARCH_DAVINCI || ARCH_OMAP2PLUS
- help
- Say "yes" here to support the on chip real time clock
- present on TI OMAP1, AM33xx, DA8xx/OMAP-L13x, AM43xx and DRA7xx.
- config RTC_ZYNQMP
- bool "Enable ZynqMP RTC driver"
- depends on ARCH_ZYNQMP
- help
- Say "yes" here to support the on chip real time clock
- present on Xilinx ZynqMP SoC.
- endmenu
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