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-rw-r--r--drivers/rtc/Kconfig45
1 files changed, 41 insertions, 4 deletions
diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index 484de8e4c5a..6402d699072 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -469,10 +469,47 @@ config RTC_DRV_AT32AP700X
AT32AP700x family processors.
config RTC_DRV_AT91RM9200
- tristate "AT91RM9200"
- depends on ARCH_AT91RM9200
- help
- Driver for the Atmel AT91RM9200's internal RTC (Realtime Clock).
+ tristate "AT91RM9200 or AT91SAM9RL"
+ depends on ARCH_AT91RM9200 || ARCH_AT91SAM9RL
+ help
+ Driver for the internal RTC (Realtime Clock) module found on
+ Atmel AT91RM9200's and AT91SAM9RL chips. On SAM9RL chips
+ this is powered by the backup power supply.
+
+config RTC_DRV_AT91SAM9
+ tristate "AT91SAM9x"
+ depends on ARCH_AT91 && !(ARCH_AT91RM9200 || ARCH_AT91X40)
+ help
+ RTC driver for the Atmel AT91SAM9x 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 chips you probably want to use the dedicated RTC
+ module and leave the RTT available for other uses.)
+
+config RTC_DRV_AT91SAM9_RTT
+ int
+ range 0 1
+ default 0
+ prompt "RTT module Number" if ARCH_AT91SAM9263
+ depends on RTC_DRV_AT91SAM9
+ help
+ More than one RTT module is available. You can choose which
+ one will be used as an RTC. The default of zero is normally
+ OK to use, though some systems use that for non-RTC purposes.
+
+config RTC_DRV_AT91SAM9_GPBR
+ int
+ range 0 3 if !ARCH_AT91SAM9263
+ range 0 15 if ARCH_AT91SAM9263
+ default 0
+ prompt "Backup Register Number"
+ depends on RTC_DRV_AT91SAM9
+ help
+ The RTC driver needs to use one of the General Purpose Backup
+ Registers (GPBRs) as well as the RTT. You can choose which one
+ will be used. The default of zero is normally OK to use, but
+ on some systems other software needs to use that register.
config RTC_DRV_BFIN
tristate "Blackfin On-Chip RTC"