diff options
Diffstat (limited to 'drivers/rtc/Kconfig')
| -rw-r--r-- | drivers/rtc/Kconfig | 53 |
1 files changed, 39 insertions, 14 deletions
diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig index 8cd0beebdc3f..f15cddfeb897 100644 --- a/drivers/rtc/Kconfig +++ b/drivers/rtc/Kconfig @@ -192,6 +192,14 @@ config RTC_DRV_DS1374 This driver can also be built as a module. If so, the module will be called rtc-ds1374. +config RTC_DRV_DS1374_WDT + bool "Dallas/Maxim DS1374 watchdog timer" + depends on RTC_DRV_DS1374 + help + If you say Y here you will get support for the + watchdog timer in the Dallas Semiconductor DS1374 + real-time clock chips. + config RTC_DRV_DS1672 tristate "Dallas/Maxim DS1672" help @@ -830,7 +838,7 @@ config RTC_DRV_DA9063 config RTC_DRV_EFI tristate "EFI RTC" - depends on EFI + depends on EFI && !X86 help If you say yes here you will get support for the EFI Real Time Clock. @@ -979,6 +987,17 @@ config RTC_DRV_NUC900 If you say yes here you get support for the RTC subsystem of the NUC910/NUC920 used in embedded systems. +config RTC_DRV_OPAL + tristate "IBM OPAL RTC driver" + depends on PPC_POWERNV + default y + help + If you say yes here you get support for the PowerNV platform RTC + driver based on OPAL interfaces. + + This driver can also be built as a module. If so, the module + will be called rtc-opal. + comment "on-CPU RTC drivers" config RTC_DRV_DAVINCI @@ -1109,36 +1128,42 @@ config RTC_DRV_AT91RM9200 this is powered by the backup power supply. config RTC_DRV_AT91SAM9 - tristate "AT91SAM9x/AT91CAP9 RTT as RTC" - depends on ARCH_AT91 && !(ARCH_AT91RM9200 || ARCH_AT91X40) + tristate "AT91SAM9 RTT as RTC" + depends on ARCH_AT91 + select MFD_SYSCON help - 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.) + Some AT91SAM9 SoCs provide an RTT (Real Time Timer) block which + can be used as an RTC thanks to the backup power supply (e.g. a + small coin cell battery) which keeps this block and the GPBR + (General Purpose Backup Registers) block powered when the device + is shutdown. + Some AT91SAM9 SoCs provide a real RTC block, on those ones you'd + probably want to use the real RTC block instead of the "RTT as an + RTC" driver. config RTC_DRV_AT91SAM9_RTT int range 0 1 default 0 - prompt "RTT module Number" if ARCH_AT91SAM9263 depends on RTC_DRV_AT91SAM9 help + This option is only relevant for legacy board support and + won't be used when booting a DT board. + 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 + range 0 3 default 0 prompt "Backup Register Number" depends on RTC_DRV_AT91SAM9 help + This option is only relevant for legacy board support and + won't be used when booting a DT board. + 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 @@ -1320,7 +1345,7 @@ config RTC_DRV_LPC32XX config RTC_DRV_PM8XXX tristate "Qualcomm PMIC8XXX RTC" - depends on MFD_PM8XXX + depends on MFD_PM8XXX || MFD_SPMI_PMIC help If you say yes here you get support for the Qualcomm PMIC8XXX RTC. |