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
+ 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
the value read from a specified RTC device. This is useful to avoid
unnecessary fsck runs at boot time, and to network better.
-config RTC_SYSTOHC
- bool "Set the RTC time based on NTP synchronization"
- default y
- help
- If you say yes here, the system time (wall clock) will be stored
- in the RTC specified by RTC_HCTOSYS_DEVICE approximately every 11
- minutes if userspace reports synchronized NTP status.
-
config RTC_HCTOSYS_DEVICE
string "RTC used to set the system time"
- depends on RTC_HCTOSYS = y || RTC_SYSTOHC = y
+ depends on RTC_HCTOSYS
default "rtc0"
help
The RTC device that will be used to (re)initialize the system
sleep states. Do not specify an RTC here unless it stays powered
during all this system's supported sleep states.
+config RTC_SYSTOHC
+ bool "Set the RTC time based on NTP synchronization"
+ default y
+ help
+ If you say yes here, the system time (wall clock) will be stored
+ in the RTC specified by RTC_HCTOSYS_DEVICE approximately every 11
+ minutes if userspace reports synchronized NTP status.
+
+config RTC_SYSTOHC_DEVICE
+ string "RTC used to synchronize NTP adjustment"
+ depends on RTC_SYSTOHC
+ default RTC_HCTOSYS_DEVICE if RTC_HCTOSYS
+ default "rtc0"
+ help
+ The RTC device used for NTP synchronization. The main difference
+ between RTC_HCTOSYS_DEVICE and RTC_SYSTOHC_DEVICE is that this
+ one can sleep when setting time, because it runs in the workqueue
+ context.
+
config RTC_DEBUG
bool "RTC debug support"
help
config RTC_DRV_88PM860X
tristate "Marvell 88PM860x"
- depends on I2C && MFD_88PM860X
+ depends on MFD_88PM860X
help
If you say yes here you get support for RTC function in Marvell
88PM860x chips.
config RTC_DRV_88PM80X
tristate "Marvell 88PM80x"
- depends on I2C && MFD_88PM800
+ depends on MFD_88PM800
help
If you say yes here you get support for RTC function in Marvell
88PM80x chips.
will be called rtc-88pm80x.
config RTC_DRV_ABB5ZES3
- depends on I2C
- select REGMAP_I2C
- tristate "Abracon AB-RTCMC-32.768kHz-B5ZE-S3"
- help
+ select REGMAP_I2C
+ tristate "Abracon AB-RTCMC-32.768kHz-B5ZE-S3"
+ help
If you say yes here you get support for the Abracon
AB-RTCMC-32.768kHz-B5ZE-S3 I2C RTC chip.
config RTC_DRV_DS1374
tristate "Dallas/Maxim DS1374"
- depends on I2C
help
If you say yes here you get support for Dallas Semiconductor
DS1374 real-time clock chips. If an interrupt is associated
config RTC_DRV_DS3232
tristate "Dallas/Maxim DS3232"
- depends on I2C
help
If you say yes here you get support for Dallas Semiconductor
DS3232 real-time clock chips. If an interrupt is associated
config RTC_DRV_HYM8563
tristate "Haoyu Microelectronics HYM8563"
- depends on I2C && OF
+ depends on OF
help
Say Y to enable support for the HYM8563 I2C RTC chip. Apart
from the usual rtc functions it provides a clock output of
will be called rtc-isl12022.
config RTC_DRV_ISL12057
- depends on I2C
- select REGMAP_I2C
- tristate "Intersil ISL12057"
- help
+ select REGMAP_I2C
+ tristate "Intersil ISL12057"
+ help
If you say yes here you get support for the Intersil ISL12057
I2C RTC chip.
if SPI_MASTER
config RTC_DRV_M41T93
- tristate "ST M41T93"
- help
- If you say yes here you will get support for the
- ST M41T93 SPI RTC chip.
+ tristate "ST M41T93"
+ help
+ If you say yes here you will get support for the
+ ST M41T93 SPI RTC chip.
- This driver can also be built as a module. If so, the module
- will be called rtc-m41t93.
+ This driver can also be built as a module. If so, the module
+ will be called rtc-m41t93.
config RTC_DRV_M41T94
tristate "ST M41T94"
Say Y here to enable support for the on-chip RTC found in
most SuperH processors.
- To compile this driver as a module, choose M here: the
+ To compile this driver as a module, choose M here: the
module will be called rtc-sh.
config RTC_DRV_VR41XX
just say Y.
config RTC_DRV_PXA
- tristate "PXA27x/PXA3xx"
- depends on ARCH_PXA
- help
- If you say Y here you will get access to the real time clock
- built into your PXA27x or PXA3xx CPU.
+ tristate "PXA27x/PXA3xx"
+ depends on ARCH_PXA
+ help
+ If you say Y here you will get access to the real time clock
+ built into your PXA27x or PXA3xx CPU.
- This RTC driver uses PXA RTC registers available since pxa27x
- series (RDxR, RYxR) instead of legacy RCNR, RTAR.
+ This RTC driver uses PXA RTC registers available since pxa27x
+ series (RDxR, RYxR) instead of legacy RCNR, RTAR.
config RTC_DRV_VT8500
tristate "VIA/WonderMedia 85xx SoC RTC"
This driver can also be built as a module. If so, the module
will be called armada38x-rtc.
+config RTC_DRV_GEMINI
+ tristate "Gemini SoC RTC"
+ depends on ARCH_GEMINI || COMPILE_TEST
+ depends on HAS_IOMEM
+ help
+ If you say Y here you will get support for the
+ RTC found on Gemini SoC's.
+
+ This driver can also be built as a module. If so, the module
+ will be called rtc-gemini.
+
config RTC_DRV_PS3
tristate "PS3 RTC"
depends on PPC_PS3
config RTC_DRV_STMP
tristate "Freescale STMP3xxx/i.MX23/i.MX28 RTC"
depends on ARCH_MXS
+ select STMP_DEVICE
help
If you say yes here you will get support for the onboard
STMP3xxx/i.MX23/i.MX28 RTC.
Say "yes" here to support the real time clock on SiRF SOC chips.
This driver can also be built as a module called rtc-sirfsoc.
+config RTC_DRV_ST_LPC
+ tristate "STMicroelectronics LPC RTC"
+ depends on ARCH_STI
+ depends on OF
+ help
+ Say Y here to include STMicroelectronics Low Power Controller
+ (LPC) based RTC support.
+
+ To compile this driver as a module, choose M here: the
+ module will be called rtc-st-lpc.
+
config RTC_DRV_MOXART
tristate "MOXA ART RTC"
depends on ARCH_MOXART || COMPILE_TEST
This driver can also be built as a module. If so, the module
will be called rtc-moxart
+config RTC_DRV_MT6397
+ tristate "Mediatek Real Time Clock driver"
+ depends on MFD_MT6397 || COMPILE_TEST
+ help
+ This selects the Mediatek(R) RTC driver. RTC is part of Mediatek
+ MT6397 PMIC. You should enable MT6397 PMIC MFD before select
+ Mediatek(R) RTC driver.
+
+ If you want to use Mediatek(R) RTC interface, select Y or M here.
+
config RTC_DRV_XGENE
tristate "APM X-Gene RTC"
depends on HAS_IOMEM
+ depends on ARCH_XGENE || COMPILE_TEST
help
If you say yes here you get support for the APM X-Gene SoC real time
clock.
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