| # |
| # 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_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_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. |
| endmenu |