# RTC class/drivers configuration
#
-menu "Real Time Clock"
- depends on !S390
-
config RTC_LIB
tristate
-config RTC_CLASS
- tristate "RTC class"
+menuconfig RTC_CLASS
+ tristate "Real Time Clock"
default n
+ depends on !S390
select RTC_LIB
help
Generic RTC class support. If you say yes here, you will
This driver can also be built as a module. If so, the module
will be called rtc-class.
+if RTC_CLASS
+
config RTC_HCTOSYS
bool "Set system time from RTC on startup and resume"
depends on RTC_CLASS = y
help
The RTC device that will be used to (re)initialize the system
clock, usually rtc0. Initialization is done when the system
- starts up, and when it resumes from a low power state.
+ starts up, and when it resumes from a low power state. This
+ device should record time in UTC, since the kernel won't do
+ timezone correction.
+
+ The driver for this RTC device must be loaded before late_initcall
+ functions run, so it must usually be statically linked.
This clock should be battery-backed, so that it reads the correct
time when the system boots from a power-off state. Otherwise, your
and individual RTC drivers.
comment "RTC interfaces"
- depends on RTC_CLASS
config RTC_INTF_SYSFS
boolean "/sys/class/rtc/rtcN (sysfs)"
- depends on RTC_CLASS && SYSFS
+ depends on SYSFS
default RTC_CLASS
help
Say yes here if you want to use your RTCs using sysfs interfaces,
config RTC_INTF_PROC
boolean "/proc/driver/rtc (procfs for rtc0)"
- depends on RTC_CLASS && PROC_FS
+ depends on PROC_FS
default RTC_CLASS
help
Say yes here if you want to use your first RTC through the proc
config RTC_INTF_DEV
boolean "/dev/rtcN (character devices)"
- depends on RTC_CLASS
default RTC_CLASS
help
Say yes here if you want to use your RTCs using the /dev
config RTC_DRV_TEST
tristate "Test driver/device"
- depends on RTC_CLASS
help
If you say yes here you get support for the
RTC test driver. It's a software RTC which can be
will be called rtc-test.
comment "I2C RTC drivers"
- depends on RTC_CLASS && I2C
+ depends on I2C
+
+if I2C
config RTC_DRV_DS1307
tristate "Dallas/Maxim DS1307/37/38/39/40, ST M41T00"
- depends on RTC_CLASS && I2C
help
If you say yes here you get support for various compatible RTC
chips (often with battery backup) connected with I2C. This driver
This driver can also be built as a module. If so, the module
will be called rtc-ds1307.
+config RTC_DRV_DS1374
+ tristate "Maxim/Dallas Semiconductor DS1374 Real Time Clock"
+ depends on RTC_CLASS && I2C
+ help
+ If you say yes here you get support for Dallas Semiconductor
+ DS1374 real-time clock chips. If an interrupt is associated
+ with the device, the alarm functionality is supported.
+
+ This driver can also be built as a module. If so, the module
+ will be called rtc-ds1374.
+
config RTC_DRV_DS1672
tristate "Dallas/Maxim DS1672"
- depends on RTC_CLASS && I2C
help
If you say yes here you get support for the
Dallas/Maxim DS1672 timekeeping chip.
config RTC_DRV_MAX6900
tristate "Maxim 6900"
- depends on RTC_CLASS && I2C
help
If you say yes here you will get support for the
Maxim MAX6900 I2C RTC chip.
config RTC_DRV_RS5C372
tristate "Ricoh RS5C372A/B, RV5C386, RV5C387A"
- depends on RTC_CLASS && I2C
help
If you say yes here you get support for the
Ricoh RS5C372A, RS5C372B, RV5C386, and RV5C387A RTC chips.
config RTC_DRV_ISL1208
tristate "Intersil 1208"
- depends on RTC_CLASS && I2C
help
If you say yes here you get support for the
Intersil 1208 RTC chip.
config RTC_DRV_X1205
tristate "Xicor/Intersil X1205"
- depends on RTC_CLASS && I2C
help
If you say yes here you get support for the
Xicor/Intersil X1205 RTC chip.
config RTC_DRV_PCF8563
tristate "Philips PCF8563/Epson RTC8564"
- depends on RTC_CLASS && I2C
help
If you say yes here you get support for the
Philips PCF8563 RTC chip. The Epson RTC8564
config RTC_DRV_PCF8583
tristate "Philips PCF8583"
- depends on RTC_CLASS && I2C
help
If you say yes here you get support for the Philips PCF8583
RTC chip found on Acorn RiscPCs. This driver supports the
config RTC_DRV_M41T80
tristate "ST M41T80 series RTC"
- depends on RTC_CLASS && I2C
help
If you say Y here you will get support for the
ST M41T80 RTC chips series. Currently following chips are
If you say Y here you will get support for the
watchdog timer in ST M41T80 RTC chips series.
+config RTC_DRV_TWL92330
+ boolean "TI TWL92330/Menelaus"
+ depends on MENELAUS
+ help
+ If you say yes here you get support for the RTC on the
+ TWL92330 "Menelaus" power management chip, used with OMAP2
+ platforms. The support is integrated with the rest of
+ the Menelaus driver; it's not separate module.
+
+endif # I2C
+
comment "SPI RTC drivers"
- depends on RTC_CLASS && SPI_MASTER
+
+if SPI_MASTER
config RTC_DRV_RS5C348
tristate "Ricoh RS5C348A/B"
- depends on RTC_CLASS && SPI_MASTER
help
If you say yes here you get support for the
Ricoh RS5C348A and RS5C348B RTC chips.
config RTC_DRV_MAX6902
tristate "Maxim 6902"
- depends on RTC_CLASS && SPI_MASTER
help
If you say yes here you will get support for the
Maxim MAX6902 SPI RTC chip.
This driver can also be built as a module. If so, the module
will be called rtc-max6902.
+endif # SPI_MASTER
+
comment "Platform RTC drivers"
- depends on RTC_CLASS
# this 'CMOS' RTC driver is arch dependent because <asm-generic/rtc.h>
# requires <asm/mc146818rtc.h> defining CMOS_READ/CMOS_WRITE, and a
config RTC_DRV_CMOS
tristate "PC-style 'CMOS'"
- depends on RTC_CLASS && (X86 || ALPHA || ARM26 || ARM \
- || M32R || ATARI || PPC || MIPS)
+ depends on X86 || ALPHA || ARM || M32R || ATARI || PPC || MIPS
help
Say "yes" here to get direct support for the real time clock
found in every PC or ACPI-based system, and some other boards.
This driver can also be built as a module. If so, the module
will be called rtc-cmos.
+config RTC_DRV_DS1216
+ tristate "Dallas DS1216"
+ depends on SNI_RM
+ help
+ If you say yes here you get support for the Dallas DS1216 RTC chips.
+
config RTC_DRV_DS1553
tristate "Dallas DS1553"
- depends on RTC_CLASS
help
If you say yes here you get support for the
Dallas DS1553 timekeeping chip.
This driver can also be built as a module. If so, the module
will be called rtc-ds1553.
+config RTC_DRV_STK17TA8
+ tristate "Simtek STK17TA8"
+ depends on RTC_CLASS
+ help
+ If you say yes here you get support for the
+ Simtek STK17TA8 timekeeping chip.
+
+ This driver can also be built as a module. If so, the module
+ will be called rtc-stk17ta8.
+
config RTC_DRV_DS1742
tristate "Dallas DS1742/1743"
- depends on RTC_CLASS
help
If you say yes here you get support for the
Dallas DS1742/1743 timekeeping chip.
config RTC_DRV_M48T86
tristate "ST M48T86/Dallas DS12887"
- depends on RTC_CLASS
help
If you say Y here you will get support for the
ST M48T86 and Dallas DS12887 RTC chips.
This driver can also be built as a module. If so, the module
will be called rtc-m48t86.
+config RTC_DRV_M48T59
+ tristate "ST M48T59"
+ help
+ If you say Y here you will get support for the
+ ST M48T59 RTC chip.
+
+ This driver can also be built as a module, if so, the module
+ will be called "rtc-m48t59".
+
config RTC_DRV_V3020
tristate "EM Microelectronic V3020"
- depends on RTC_CLASS
help
If you say yes here you will get support for the
EM Microelectronic v3020 RTC chip.
will be called rtc-v3020.
comment "on-CPU RTC drivers"
- depends on RTC_CLASS
config RTC_DRV_OMAP
tristate "TI OMAP1"
- depends on RTC_CLASS && ( \
- ARCH_OMAP15XX || ARCH_OMAP16XX || ARCH_OMAP730 )
+ depends on ARCH_OMAP15XX || ARCH_OMAP16XX || ARCH_OMAP730
help
Say "yes" here to support the real time clock on TI OMAP1 chips.
This driver can also be built as a module called rtc-omap.
config RTC_DRV_S3C
tristate "Samsung S3C series SoC RTC"
- depends on RTC_CLASS && ARCH_S3C2410
+ depends on ARCH_S3C2410
help
RTC (Realtime Clock) driver for the clock inbuilt into the
Samsung S3C24XX series of SoCs. This can provide periodic
config RTC_DRV_EP93XX
tristate "Cirrus Logic EP93XX"
- depends on RTC_CLASS && ARCH_EP93XX
+ depends on ARCH_EP93XX
help
If you say yes here you get support for the
RTC embedded in the Cirrus Logic EP93XX processors.
config RTC_DRV_SA1100
tristate "SA11x0/PXA2xx"
- depends on RTC_CLASS && (ARCH_SA1100 || ARCH_PXA)
+ depends on ARCH_SA1100 || ARCH_PXA
help
If you say Y here you will get access to the real time clock
built into your SA11x0 or PXA2xx CPU.
config RTC_DRV_SH
tristate "SuperH On-Chip RTC"
- depends on RTC_CLASS && SUPERH
+ depends on RTC_CLASS && (CPU_SH3 || CPU_SH4)
help
Say Y here to enable support for the on-chip RTC found in
most SuperH processors.
config RTC_DRV_VR41XX
tristate "NEC VR41XX"
- depends on RTC_CLASS && CPU_VR41XX
+ depends on CPU_VR41XX
help
If you say Y here you will get access to the real time clock
built into your NEC VR41XX CPU.
config RTC_DRV_PL031
tristate "ARM AMBA PL031 RTC"
- depends on RTC_CLASS && ARM_AMBA
+ depends on ARM_AMBA
help
If you say Y here you will get access to ARM AMBA
PrimeCell PL031 RTC found on certain ARM SOCs.
config RTC_DRV_AT32AP700X
tristate "AT32AP700X series RTC"
- depends on RTC_CLASS && PLATFORM_AT32AP
+ depends on PLATFORM_AT32AP
help
Driver for the internal RTC (Realtime Clock) on Atmel AVR32
AT32AP700x family processors.
config RTC_DRV_AT91RM9200
tristate "AT91RM9200"
- depends on RTC_CLASS && ARCH_AT91RM9200
+ depends on ARCH_AT91RM9200
help
Driver for the Atmel AT91RM9200's internal RTC (Realtime Clock).
config RTC_DRV_BFIN
tristate "Blackfin On-Chip RTC"
- depends on RTC_CLASS && BFIN
+ depends on BFIN
help
If you say yes here you will get support for the
Blackfin On-Chip Real Time Clock.
config RTC_DRV_RS5C313
tristate "Ricoh RS5C313"
- depends on RTC_CLASS && SH_LANDISK
+ depends on SH_LANDISK
help
If you say yes here you get support for the Ricoh RS5C313 RTC chips.
-endmenu
+endif # RTC_CLASS
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