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This is a basic driver for the ultra-low-power Abracon AB x80x series of RTC chips. It supports in particular, the supersets AB0805 and AB1805. It allows reading and writing the time, and enables the supercapacitor or battery charger. Signed-off-by: Ying-Chun Liu (PaulLiu) <paul.liu@linaro.org>
178 lines
5.5 KiB
Text
178 lines
5.5 KiB
Text
#
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# RTC drivers configuration
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#
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menu "Real Time Clock"
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config DM_RTC
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bool "Enable Driver Model for RTC drivers"
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depends on DM
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select LIB_DATE
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help
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Enable drver model for real-time-clock drivers. The RTC uclass
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then provides the rtc_get()/rtc_set() interface, delegating to
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drivers to perform the actual functions. See rtc.h for a
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description of the API.
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config SPL_DM_RTC
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bool "Enable Driver Model for RTC drivers in SPL"
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depends on SPL_DM
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help
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Enable drver model for real-time-clock drivers. The RTC uclass
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then provides the rtc_get()/rtc_set() interface, delegating to
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drivers to perform the actual functions. See rtc.h for a
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description of the API.
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config TPL_DM_RTC
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bool "Enable Driver Model for RTC drivers in TPL"
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depends on TPL_DM
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help
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Enable drver model for real-time-clock drivers. The RTC uclass
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then provides the rtc_get()/rtc_set() interface, delegating to
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drivers to perform the actual functions. See rtc.h for a
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description of the API.
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config RTC_ENABLE_32KHZ_OUTPUT
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bool "Enable RTC 32Khz output"
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help
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Some real-time clocks support the output of 32kHz square waves (such as ds3231),
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the config symbol choose Real Time Clock device 32Khz output feature.
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config RTC_PCF2127
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bool "Enable PCF2127 driver"
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depends on DM_RTC
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help
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The PCF2127 is a CMOS Real Time Clock (RTC) and calendar with an integrated
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Temperature Compensated Crystal (Xtal) Oscillator (TCXO) and a 32.768 kHz quartz
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crystal optimized for very high accuracy and very low power consumption. The PCF2127
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has a selectable I2C-bus or SPI-bus, a backup battery switch-over circuit, a
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programmable watchdog function, a timestamp function, and many other features.
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config RTC_DS1307
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bool "Enable DS1307 driver"
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depends on DM_RTC
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help
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Support for Dallas Semiconductor (now Maxim) DS1307 and DS1338/9 and
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compatible Real Time Clock devices.
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config RTC_DS3232
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bool "Enable DS3232 driver"
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depends on DM_RTC
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depends on DM_I2C
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help
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Support for Dallas Semiconductor (now Maxim) DS3232 compatible
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Real Time Clock devices.
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config RTC_EMULATION
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bool "Enable emulated RTC"
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depends on DM_RTC
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help
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On a board without hardware clock this software real time clock can be
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used. The initial time may be provided via the environment variable
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'rtc_emul_epoch' as a decimal string indicating seconds since
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1970-01-01. If the environment variable is missing, the build time is
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used to initialize the RTC. The time can be adjusted manually via the
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'date' command or the 'sntp' command can be used to update the RTC
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with the time from a network time server. See CONFIG_CMD_SNTP and
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CONFIG_BOOTP_NTPSERVER. The RTC time is advanced according to CPU
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ticks.
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config RTC_ISL1208
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bool "Enable ISL1208 driver"
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depends on DM_RTC
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help
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The Renesas (formerly Intersil) ISL1208 is a I2C Real Time Clock (RTC) and
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calendar with automatic leap year correction, 2-byte battery backed SRAM,
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automatic power switch-over, alarm function and 15 selectable frequency
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outputs.
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This driver supports reading and writing the RTC/calendar and detects
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total power failures.
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config RTC_PCF8563
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tristate "Philips PCF8563"
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help
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If you say yes here you get support for the Philips PCF8563 RTC
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and compatible chips.
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config RTC_RV3029
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bool "Enable RV3029 driver"
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depends on DM_RTC
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help
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The MicroCrystal RV3029 is a I2C Real Time Clock (RTC) with 8-byte
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battery-backed SRAM.
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This driver supports reading and writing the RTC/calendar and the
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battery-baced SRAM section.
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config RTC_RV8803
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bool "Enable RV8803 driver"
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depends on DM_RTC
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help
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The Micro Crystal RV8803 is a high accuracy, ultra-low power I2C
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Real Time Clock (RTC) with temperature compensation.
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This driver supports reading and writing the RTC/calendar and
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detects total power failures.
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config RTC_RX8010SJ
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bool "Enable RX8010SJ driver"
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depends on DM_RTC
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help
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Support for Epson RX8010SJ Real Time Clock devices.
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config RTC_RX8025
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bool "Enable RX8025 driver"
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help
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Support for Epson RX8025 Real Time Clock devices.
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config RTC_PL031
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bool "Enable ARM AMBA PL031 RTC driver"
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help
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The ARM PrimeCell Real Time Clock (PL031) is an optional SoC
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peripheral based on the Advanced Microcontroller Bus Architecture
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(AMBA). It is emulated in QEMU virtual ARM machines.
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config RTC_MV
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bool "Enable Marvell RTC driver"
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depends on DM_RTC
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help
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Enable Marvell RTC driver. This driver supports the rtc that is present
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on some Marvell SoCs.
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config RTC_S35392A
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bool "Enable S35392A driver"
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select BITREVERSE
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help
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Enable s35392a driver which provides rtc get and set function.
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config RTC_MC146818
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bool "Enable MC146818 driver"
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help
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This is a widely used real-time clock chip originally by Motorola
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and now available from NXP. It includes a battery-backed real-time
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clock with a wide array of features and 50 bytes of general-purpose,
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battery-backed RAM. The driver supports access to the clock and RAM.
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config RTC_M41T62
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bool "Enable M41T62 driver"
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help
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Enable driver for ST's M41T62 compatible RTC devices (like RV-4162).
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It is a serial (I2C) real-time clock (RTC) with alarm.
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config RTC_STM32
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bool "Enable STM32 RTC driver"
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depends on DM_RTC
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help
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Enable STM32 RTC driver. This driver supports the rtc that is present
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on some STM32 SoCs.
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config RTC_ABX80X
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bool "Enable Abracon ABx80x RTC driver"
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depends on DM_RTC
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help
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If you say yes here you get support for Abracon AB080X and AB180X
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families of ultra-low-power battery- and capacitor-backed real-time
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clock chips.
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endmenu
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