AT91SAM9x/AT91CAP9 RTT as RTC
modulename: rtc-at91sam9.ko
configname: CONFIG_RTC_DRV_AT91SAM9
Linux Kernel Configuration
└─>Device Drivers
└─>Real Time Clock
└─>AT91SAM9x/AT91CAP9 RTT as RTC
In linux kernel since version 2.6.25 (release Date: 2008-04-16)
RTC driver for the Atmel AT91SAM9x and AT91CAP9 internal RTT
(Real Time Timer). These timers are powered by the backup power
supply (such as a small coin cell battery), but do not need to
be used as RTCs.
(On AT91SAM9rl and AT91SAM9G45 chips you probably want to use the
dedicated RTC module and leave the RTT available for other uses.)
(Real Time Timer). These timers are powered by the backup power
supply (such as a small coin cell battery), but do not need to
be used as RTCs.
(On AT91SAM9rl and AT91SAM9G45 chips you probably want to use the
dedicated RTC module and leave the RTT available for other uses.)
source code:
depends
CONFIG_ARCH_AT91CONFIG_RTC_CLASS
NOT CONFIG_ARCH_AT91RM9200
NOT CONFIG_ARCH_AT91X40 or CONFIG_ARCH_AT91 or CONFIG_COMPILE_TEST or CONFIG_HAS_IOMEM or CONFIG_OF