# # RTC class/drivers configuration # config RTC_LIB bool select GREGORIAN_CALENDER menuconfig RTC_CLASS bool "Real Time Clock" default n select RTC_LIB help Generic RTC class support. If you say yes here, you will be allowed to plug one or more RTCs to your system. You will probably want to enable one or more of the interfaces below. if RTC_CLASS comment "I2C RTC drivers" depends on I2C if I2C config RTC_DRV_DS1307 tristate "Dallas/Maxim DS1307/38" help If you say yes here you get support for various compatible RTC chips (often with battery backup) connected with I2C. This driver should handle DS1307, DS1338 and probably other chips. The first seven registers on these chips hold an RTC, and other registers may add features such as NVRAM, a trickle charger for the RTC/NVRAM backup power, and alarms. config RTC_DRV_ABRACON tristate "Abracon RTCs" endif # I2C config RTC_DRV_IMXDI tristate "Freescale IMX DryIce Real Time Clock" depends on ARCH_IMX help Support for Freescale IMX DryIce RTC config RTC_DRV_JZ4740 tristate "Ingenic JZ4740 RTC" depends on MACH_MIPS_XBURST help If you say yes here you get support for the Ingenic JZ4740 SoC RTC controller. endif # RTC_CLASS