10b11dbf7SMasahiro Yamada# 20b11dbf7SMasahiro Yamada# RTC drivers configuration 30b11dbf7SMasahiro Yamada# 40b11dbf7SMasahiro Yamada 50b11dbf7SMasahiro Yamadamenu "Real Time Clock" 60b11dbf7SMasahiro Yamada 7dbeda5b2SSimon Glassconfig DM_RTC 8dbeda5b2SSimon Glass bool "Enable Driver Model for RTC drivers" 9dbeda5b2SSimon Glass depends on DM 10dbeda5b2SSimon Glass help 11dbeda5b2SSimon Glass Enable drver model for real-time-clock drivers. The RTC uclass 12dbeda5b2SSimon Glass then provides the rtc_get()/rtc_set() interface, delegating to 13dbeda5b2SSimon Glass drivers to perform the actual functions. See rtc.h for a 14dbeda5b2SSimon Glass description of the API. 150b11dbf7SMasahiro Yamada 168f3a8428SMeng Yiconfig RTC_PCF2127 178f3a8428SMeng Yi bool "Enable PCF2127 driver" 188f3a8428SMeng Yi depends on DM_RTC 198f3a8428SMeng Yi help 2045a0194bSMeng Yi The PCF2127 is a CMOS Real Time Clock (RTC) and calendar with an integrated 2145a0194bSMeng Yi Temperature Compensated Crystal (Xtal) Oscillator (TCXO) and a 32.768 kHz quartz 2245a0194bSMeng Yi crystal optimized for very high accuracy and very low power consumption. The PCF2127 2345a0194bSMeng Yi has a selectable I2C-bus or SPI-bus, a backup battery switch-over circuit, a 2445a0194bSMeng Yi programmable watchdog function, a timestamp function, and many other features. 258f3a8428SMeng Yi 26*d425d605SChris Packhamconfig RTC_DS1307 27*d425d605SChris Packham bool "Enable DS1307 driver" 28*d425d605SChris Packham depends on DM_RTC 29*d425d605SChris Packham help 30*d425d605SChris Packham Support for Dallas Semiconductor (now Maxim) DS1307 and DS1338/9 and 31*d425d605SChris Packham compatible Real Time Clock devices. 32*d425d605SChris Packham 330b11dbf7SMasahiro Yamadaendmenu 34