mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-26 19:00:25 +00:00
![Alexandre Belloni](/assets/img/avatar_default.png)
This driver supports the following functions: - reading and settings time - alarms when connected to an IRQ - reading and clearing the voltage low flags - nvram Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
1631 lines
46 KiB
Text
1631 lines
46 KiB
Text
#
|
|
# RTC class/drivers configuration
|
|
#
|
|
|
|
config RTC_LIB
|
|
bool
|
|
|
|
menuconfig RTC_CLASS
|
|
bool "Real Time Clock"
|
|
default n
|
|
depends on !S390 && !UML
|
|
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
|
|
probably want to enable one or more of the interfaces below.
|
|
|
|
if RTC_CLASS
|
|
|
|
config RTC_HCTOSYS
|
|
bool "Set system time from RTC on startup and resume"
|
|
default y
|
|
help
|
|
If you say yes here, the system time (wall clock) will be set using
|
|
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_HCTOSYS_DEVICE
|
|
string "RTC used to set the system time"
|
|
depends on RTC_HCTOSYS
|
|
default "rtc0"
|
|
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. 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
|
|
system will need an external clock source (like an NTP server).
|
|
|
|
If the clock you specify here is not battery backed, it may still
|
|
be useful to reinitialize system time when resuming from 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
|
|
Say yes here to enable debugging support in the RTC framework
|
|
and individual RTC drivers.
|
|
|
|
comment "RTC interfaces"
|
|
|
|
config RTC_INTF_SYSFS
|
|
bool "/sys/class/rtc/rtcN (sysfs)"
|
|
depends on SYSFS
|
|
default RTC_CLASS
|
|
help
|
|
Say yes here if you want to use your RTCs using sysfs interfaces,
|
|
/sys/class/rtc/rtc0 through /sys/.../rtcN.
|
|
|
|
If unsure, say Y.
|
|
|
|
config RTC_INTF_PROC
|
|
bool "/proc/driver/rtc (procfs for rtcN)"
|
|
depends on PROC_FS
|
|
default RTC_CLASS
|
|
help
|
|
Say yes here if you want to use your system clock RTC through
|
|
the proc interface, /proc/driver/rtc.
|
|
Other RTCs will not be available through that API.
|
|
If there is no RTC for the system clock, then the first RTC(rtc0)
|
|
is used by default.
|
|
|
|
If unsure, say Y.
|
|
|
|
config RTC_INTF_DEV
|
|
bool "/dev/rtcN (character devices)"
|
|
default RTC_CLASS
|
|
help
|
|
Say yes here if you want to use your RTCs using the /dev
|
|
interfaces, which "udev" sets up as /dev/rtc0 through
|
|
/dev/rtcN.
|
|
|
|
You may want to set up a symbolic link so one of these
|
|
can be accessed as /dev/rtc, which is a name
|
|
expected by "hwclock" and some other programs. Recent
|
|
versions of "udev" are known to set up the symlink for you.
|
|
|
|
If unsure, say Y.
|
|
|
|
config RTC_INTF_DEV_UIE_EMUL
|
|
bool "RTC UIE emulation on dev interface"
|
|
depends on RTC_INTF_DEV
|
|
help
|
|
Provides an emulation for RTC_UIE if the underlying rtc chip
|
|
driver does not expose RTC_UIE ioctls. Those requests generate
|
|
once-per-second update interrupts, used for synchronization.
|
|
|
|
The emulation code will read the time from the hardware
|
|
clock several times per second, please enable this option
|
|
only if you know that you really need it.
|
|
|
|
config RTC_DRV_TEST
|
|
tristate "Test driver/device"
|
|
help
|
|
If you say yes here you get support for the
|
|
RTC test driver. It's a software RTC which can be
|
|
used to test the RTC subsystem APIs. It gets
|
|
the time from the system clock.
|
|
You want this driver only if you are doing development
|
|
on the RTC subsystem. Please read the source code
|
|
for further details.
|
|
|
|
This driver can also be built as a module. If so, the module
|
|
will be called rtc-test.
|
|
|
|
comment "I2C RTC drivers"
|
|
depends on I2C
|
|
|
|
if I2C
|
|
|
|
config RTC_DRV_88PM860X
|
|
tristate "Marvell 88PM860x"
|
|
depends on MFD_88PM860X
|
|
help
|
|
If you say yes here you get support for RTC function in Marvell
|
|
88PM860x chips.
|
|
|
|
This driver can also be built as a module. If so, the module
|
|
will be called rtc-88pm860x.
|
|
|
|
config RTC_DRV_88PM80X
|
|
tristate "Marvell 88PM80x"
|
|
depends on MFD_88PM800
|
|
help
|
|
If you say yes here you get support for RTC function in Marvell
|
|
88PM80x chips.
|
|
|
|
This driver can also be built as a module. If so, the module
|
|
will be called rtc-88pm80x.
|
|
|
|
config RTC_DRV_ABB5ZES3
|
|
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.
|
|
|
|
This driver can also be built as a module. If so, the module
|
|
will be called rtc-ab-b5ze-s3.
|
|
|
|
config RTC_DRV_ABX80X
|
|
tristate "Abracon ABx80x"
|
|
help
|
|
If you say yes here you get support for Abracon AB080X and AB180X
|
|
families of ultra-low-power battery- and capacitor-backed real-time
|
|
clock chips.
|
|
|
|
This driver can also be built as a module. If so, the module
|
|
will be called rtc-abx80x.
|
|
|
|
config RTC_DRV_AS3722
|
|
tristate "ams AS3722 RTC driver"
|
|
depends on MFD_AS3722
|
|
help
|
|
If you say yes here you get support for the RTC of ams AS3722 PMIC
|
|
chips.
|
|
|
|
This driver can also be built as a module. If so, the module
|
|
will be called rtc-as3722.
|
|
|
|
config RTC_DRV_DS1307
|
|
tristate "Dallas/Maxim DS1307/37/38/39/40, ST M41T00, EPSON RX-8025"
|
|
help
|
|
If you say yes here you get support for various compatible RTC
|
|
chips (often with battery backup) connected with I2C. This driver
|
|
should handle DS1307, DS1337, DS1338, DS1339, DS1340, ST M41T00,
|
|
EPSON RX-8025 and probably other chips. In some cases the RTC
|
|
must already have been initialized (by manufacturing or a
|
|
bootloader).
|
|
|
|
The first seven registers on these chips hold an RTC, and other
|
|
registers may add features such as NVRAM, a trickle charger for
|
|
the RTC/NVRAM backup power, and alarms. NVRAM is visible in
|
|
sysfs, but other chip features may not be available.
|
|
|
|
This driver can also be built as a module. If so, the module
|
|
will be called rtc-ds1307.
|
|
|
|
config RTC_DRV_DS1374
|
|
tristate "Dallas/Maxim DS1374"
|
|
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_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
|
|
If you say yes here you get support for the
|
|
Dallas/Maxim DS1672 timekeeping chip.
|
|
|
|
This driver can also be built as a module. If so, the module
|
|
will be called rtc-ds1672.
|
|
|
|
config RTC_DRV_DS3232
|
|
tristate "Dallas/Maxim DS3232"
|
|
help
|
|
If you say yes here you get support for Dallas Semiconductor
|
|
DS3232 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-ds3232.
|
|
|
|
config RTC_DRV_HYM8563
|
|
tristate "Haoyu Microelectronics HYM8563"
|
|
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
|
|
up to 32kHz.
|
|
|
|
This driver can also be built as a module. If so, the module
|
|
will be called rtc-hym8563.
|
|
|
|
config RTC_DRV_LP8788
|
|
tristate "TI LP8788 RTC driver"
|
|
depends on MFD_LP8788
|
|
help
|
|
Say Y to enable support for the LP8788 RTC/ALARM driver.
|
|
|
|
config RTC_DRV_MAX6900
|
|
tristate "Maxim MAX6900"
|
|
help
|
|
If you say yes here you will get support for the
|
|
Maxim MAX6900 I2C RTC chip.
|
|
|
|
This driver can also be built as a module. If so, the module
|
|
will be called rtc-max6900.
|
|
|
|
config RTC_DRV_MAX8907
|
|
tristate "Maxim MAX8907"
|
|
depends on MFD_MAX8907
|
|
help
|
|
If you say yes here you will get support for the
|
|
RTC of Maxim MAX8907 PMIC.
|
|
|
|
This driver can also be built as a module. If so, the module
|
|
will be called rtc-max8907.
|
|
|
|
config RTC_DRV_MAX8925
|
|
tristate "Maxim MAX8925"
|
|
depends on MFD_MAX8925
|
|
help
|
|
If you say yes here you will get support for the
|
|
RTC of Maxim MAX8925 PMIC.
|
|
|
|
This driver can also be built as a module. If so, the module
|
|
will be called rtc-max8925.
|
|
|
|
config RTC_DRV_MAX8998
|
|
tristate "Maxim MAX8998"
|
|
depends on MFD_MAX8998
|
|
help
|
|
If you say yes here you will get support for the
|
|
RTC of Maxim MAX8998 PMIC.
|
|
|
|
This driver can also be built as a module. If so, the module
|
|
will be called rtc-max8998.
|
|
|
|
config RTC_DRV_MAX8997
|
|
tristate "Maxim MAX8997"
|
|
depends on MFD_MAX8997
|
|
help
|
|
If you say yes here you will get support for the
|
|
RTC of Maxim MAX8997 PMIC.
|
|
|
|
This driver can also be built as a module. If so, the module
|
|
will be called rtc-max8997.
|
|
|
|
config RTC_DRV_MAX77686
|
|
tristate "Maxim MAX77686"
|
|
depends on MFD_MAX77686
|
|
help
|
|
If you say yes here you will get support for the
|
|
RTC of Maxim MAX77686 PMIC.
|
|
|
|
This driver can also be built as a module. If so, the module
|
|
will be called rtc-max77686.
|
|
|
|
config RTC_DRV_RK808
|
|
tristate "Rockchip RK808 RTC"
|
|
depends on MFD_RK808
|
|
help
|
|
If you say yes here you will get support for the
|
|
RTC of RK808 PMIC.
|
|
|
|
This driver can also be built as a module. If so, the module
|
|
will be called rk808-rtc.
|
|
|
|
config RTC_DRV_MAX77802
|
|
tristate "Maxim 77802 RTC"
|
|
depends on MFD_MAX77686
|
|
help
|
|
If you say yes here you will get support for the
|
|
RTC of Maxim MAX77802 PMIC.
|
|
|
|
This driver can also be built as a module. If so, the module
|
|
will be called rtc-max77802.
|
|
|
|
config RTC_DRV_RS5C372
|
|
tristate "Ricoh R2025S/D, RS5C372A/B, RV5C386, RV5C387A"
|
|
help
|
|
If you say yes here you get support for the
|
|
Ricoh R2025S/D, RS5C372A, RS5C372B, RV5C386, and RV5C387A RTC chips.
|
|
|
|
This driver can also be built as a module. If so, the module
|
|
will be called rtc-rs5c372.
|
|
|
|
config RTC_DRV_ISL1208
|
|
tristate "Intersil ISL1208"
|
|
help
|
|
If you say yes here you get support for the
|
|
Intersil ISL1208 RTC chip.
|
|
|
|
This driver can also be built as a module. If so, the module
|
|
will be called rtc-isl1208.
|
|
|
|
config RTC_DRV_ISL12022
|
|
tristate "Intersil ISL12022"
|
|
help
|
|
If you say yes here you get support for the
|
|
Intersil ISL12022 RTC chip.
|
|
|
|
This driver can also be built as a module. If so, the module
|
|
will be called rtc-isl12022.
|
|
|
|
config RTC_DRV_ISL12057
|
|
select REGMAP_I2C
|
|
tristate "Intersil ISL12057"
|
|
help
|
|
If you say yes here you get support for the Intersil ISL12057
|
|
I2C RTC chip.
|
|
|
|
This driver can also be built as a module. If so, the module
|
|
will be called rtc-isl12057.
|
|
|
|
config RTC_DRV_X1205
|
|
tristate "Xicor/Intersil X1205"
|
|
help
|
|
If you say yes here you get support for the
|
|
Xicor/Intersil X1205 RTC chip.
|
|
|
|
This driver can also be built as a module. If so, the module
|
|
will be called rtc-x1205.
|
|
|
|
config RTC_DRV_PALMAS
|
|
tristate "TI Palmas RTC driver"
|
|
depends on MFD_PALMAS
|
|
help
|
|
If you say yes here you get support for the RTC of TI PALMA series PMIC
|
|
chips.
|
|
|
|
This driver can also be built as a module. If so, the module
|
|
will be called rtc-palma.
|
|
|
|
config RTC_DRV_PCF2127
|
|
tristate "NXP PCF2127"
|
|
help
|
|
If you say yes here you get support for the NXP PCF2127/29 RTC
|
|
chips.
|
|
|
|
This driver can also be built as a module. If so, the module
|
|
will be called rtc-pcf2127.
|
|
|
|
config RTC_DRV_PCF8523
|
|
tristate "NXP PCF8523"
|
|
help
|
|
If you say yes here you get support for the NXP PCF8523 RTC
|
|
chips.
|
|
|
|
This driver can also be built as a module. If so, the module
|
|
will be called rtc-pcf8523.
|
|
|
|
config RTC_DRV_PCF8563
|
|
tristate "Philips PCF8563/Epson RTC8564"
|
|
help
|
|
If you say yes here you get support for the
|
|
Philips PCF8563 RTC chip. The Epson RTC8564
|
|
should work as well.
|
|
|
|
This driver can also be built as a module. If so, the module
|
|
will be called rtc-pcf8563.
|
|
|
|
config RTC_DRV_PCF85063
|
|
tristate "nxp PCF85063"
|
|
help
|
|
If you say yes here you get support for the PCF85063 RTC chip
|
|
|
|
This driver can also be built as a module. If so, the module
|
|
will be called rtc-pcf85063.
|
|
|
|
config RTC_DRV_PCF8583
|
|
tristate "Philips PCF8583"
|
|
help
|
|
If you say yes here you get support for the Philips PCF8583
|
|
RTC chip found on Acorn RiscPCs. This driver supports the
|
|
platform specific method of retrieving the current year from
|
|
the RTC's SRAM. It will work on other platforms with the same
|
|
chip, but the year will probably have to be tweaked.
|
|
|
|
This driver can also be built as a module. If so, the module
|
|
will be called rtc-pcf8583.
|
|
|
|
config RTC_DRV_M41T80
|
|
tristate "ST M41T62/65/M41T80/81/82/83/84/85/87 and compatible"
|
|
help
|
|
If you say Y here you will get support for the ST M41T60
|
|
and M41T80 RTC chips series. Currently, the following chips are
|
|
supported: M41T62, M41T65, M41T80, M41T81, M41T82, M41T83, M41ST84,
|
|
M41ST85, M41ST87, and MicroCrystal RV4162.
|
|
|
|
This driver can also be built as a module. If so, the module
|
|
will be called rtc-m41t80.
|
|
|
|
config RTC_DRV_M41T80_WDT
|
|
bool "ST M41T65/M41T80 series RTC watchdog timer"
|
|
depends on RTC_DRV_M41T80
|
|
help
|
|
If you say Y here you will get support for the
|
|
watchdog timer in the ST M41T60 and M41T80 RTC chips series.
|
|
|
|
config RTC_DRV_BQ32K
|
|
tristate "TI BQ32000"
|
|
help
|
|
If you say Y here you will get support for the TI
|
|
BQ32000 I2C RTC chip.
|
|
|
|
This driver can also be built as a module. If so, the module
|
|
will be called rtc-bq32k.
|
|
|
|
config RTC_DRV_DM355EVM
|
|
tristate "TI DaVinci DM355 EVM RTC"
|
|
depends on MFD_DM355EVM_MSP
|
|
help
|
|
Supports the RTC firmware in the MSP430 on the DM355 EVM.
|
|
|
|
config RTC_DRV_TWL92330
|
|
bool "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.
|
|
|
|
config RTC_DRV_TWL4030
|
|
tristate "TI TWL4030/TWL5030/TWL6030/TPS659x0"
|
|
depends on TWL4030_CORE
|
|
help
|
|
If you say yes here you get support for the RTC on the
|
|
TWL4030/TWL5030/TWL6030 family chips, used mostly with OMAP3 platforms.
|
|
|
|
This driver can also be built as a module. If so, the module
|
|
will be called rtc-twl.
|
|
|
|
config RTC_DRV_TPS6586X
|
|
tristate "TI TPS6586X RTC driver"
|
|
depends on MFD_TPS6586X
|
|
help
|
|
TI Power Management IC TPS6586X supports RTC functionality
|
|
along with alarm. This driver supports the RTC driver for
|
|
the TPS6586X RTC module.
|
|
|
|
config RTC_DRV_TPS65910
|
|
tristate "TI TPS65910 RTC driver"
|
|
depends on RTC_CLASS && MFD_TPS65910
|
|
help
|
|
If you say yes here you get support for the RTC on the
|
|
TPS65910 chips.
|
|
|
|
This driver can also be built as a module. If so, the module
|
|
will be called rtc-tps65910.
|
|
|
|
config RTC_DRV_TPS80031
|
|
tristate "TI TPS80031/TPS80032 RTC driver"
|
|
depends on MFD_TPS80031
|
|
help
|
|
TI Power Management IC TPS80031 supports RTC functionality
|
|
along with alarm. This driver supports the RTC driver for
|
|
the TPS80031 RTC module.
|
|
|
|
config RTC_DRV_RC5T583
|
|
tristate "RICOH 5T583 RTC driver"
|
|
depends on MFD_RC5T583
|
|
help
|
|
If you say yes here you get support for the RTC on the
|
|
RICOH 5T583 chips.
|
|
|
|
This driver can also be built as a module. If so, the module
|
|
will be called rtc-rc5t583.
|
|
|
|
config RTC_DRV_S35390A
|
|
tristate "Seiko Instruments S-35390A"
|
|
select BITREVERSE
|
|
help
|
|
If you say yes here you will get support for the Seiko
|
|
Instruments S-35390A.
|
|
|
|
This driver can also be built as a module. If so the module
|
|
will be called rtc-s35390a.
|
|
|
|
config RTC_DRV_FM3130
|
|
tristate "Ramtron FM3130"
|
|
help
|
|
If you say Y here you will get support for the
|
|
Ramtron FM3130 RTC chips.
|
|
Ramtron FM3130 is a chip with two separate devices inside,
|
|
RTC clock and FRAM. This driver provides only RTC functionality.
|
|
|
|
This driver can also be built as a module. If so the module
|
|
will be called rtc-fm3130.
|
|
|
|
config RTC_DRV_RX8581
|
|
tristate "Epson RX-8581"
|
|
help
|
|
If you say yes here you will get support for the Epson RX-8581.
|
|
|
|
This driver can also be built as a module. If so the module
|
|
will be called rtc-rx8581.
|
|
|
|
config RTC_DRV_RX8025
|
|
tristate "Epson RX-8025SA/NB"
|
|
help
|
|
If you say yes here you get support for the Epson
|
|
RX-8025SA/NB RTC chips.
|
|
|
|
This driver can also be built as a module. If so, the module
|
|
will be called rtc-rx8025.
|
|
|
|
config RTC_DRV_EM3027
|
|
tristate "EM Microelectronic EM3027"
|
|
help
|
|
If you say yes here you get support for the EM
|
|
Microelectronic EM3027 RTC chips.
|
|
|
|
This driver can also be built as a module. If so, the module
|
|
will be called rtc-em3027.
|
|
|
|
config RTC_DRV_RV3029C2
|
|
tristate "Micro Crystal RTC"
|
|
help
|
|
If you say yes here you get support for the Micro Crystal
|
|
RV3029-C2 RTC chips.
|
|
|
|
This driver can also be built as a module. If so, the module
|
|
will be called rtc-rv3029c2.
|
|
|
|
config RTC_DRV_RV8803
|
|
tristate "Micro Crystal RV8803"
|
|
help
|
|
If you say yes here you get support for the Micro Crystal
|
|
RV8803 RTC chips.
|
|
|
|
This driver can also be built as a module. If so, the module
|
|
will be called rtc-rv8803.
|
|
|
|
config RTC_DRV_S5M
|
|
tristate "Samsung S2M/S5M series"
|
|
depends on MFD_SEC_CORE
|
|
help
|
|
If you say yes here you will get support for the
|
|
RTC of Samsung S2MPS14 and S5M PMIC series.
|
|
|
|
This driver can also be built as a module. If so, the module
|
|
will be called rtc-s5m.
|
|
|
|
endif # I2C
|
|
|
|
comment "SPI RTC drivers"
|
|
|
|
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.
|
|
|
|
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"
|
|
help
|
|
If you say yes here you will get support for the
|
|
ST M41T94 SPI RTC chip.
|
|
|
|
This driver can also be built as a module. If so, the module
|
|
will be called rtc-m41t94.
|
|
|
|
config RTC_DRV_DS1305
|
|
tristate "Dallas/Maxim DS1305/DS1306"
|
|
help
|
|
Select this driver to get support for the Dallas/Maxim DS1305
|
|
and DS1306 real time clock chips. These support a trickle
|
|
charger, alarms, and NVRAM in addition to the clock.
|
|
|
|
This driver can also be built as a module. If so, the module
|
|
will be called rtc-ds1305.
|
|
|
|
config RTC_DRV_DS1343
|
|
select REGMAP_SPI
|
|
tristate "Dallas/Maxim DS1343/DS1344"
|
|
help
|
|
If you say yes here you get support for the
|
|
Dallas/Maxim DS1343 and DS1344 real time clock chips.
|
|
Support for trickle charger, alarm is provided.
|
|
|
|
This driver can also be built as a module. If so, the module
|
|
will be called rtc-ds1343.
|
|
|
|
config RTC_DRV_DS1347
|
|
tristate "Dallas/Maxim DS1347"
|
|
help
|
|
If you say yes here you get support for the
|
|
Dallas/Maxim DS1347 chips.
|
|
|
|
This driver only supports the RTC feature, and not other chip
|
|
features such as alarms.
|
|
|
|
This driver can also be built as a module. If so, the module
|
|
will be called rtc-ds1347.
|
|
|
|
config RTC_DRV_DS1390
|
|
tristate "Dallas/Maxim DS1390/93/94"
|
|
help
|
|
If you say yes here you get support for the
|
|
Dallas/Maxim DS1390/93/94 chips.
|
|
|
|
This driver supports the RTC feature and trickle charging but not
|
|
other chip features such as alarms.
|
|
|
|
This driver can also be built as a module. If so, the module
|
|
will be called rtc-ds1390.
|
|
|
|
config RTC_DRV_MAX6902
|
|
tristate "Maxim MAX6902"
|
|
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.
|
|
|
|
config RTC_DRV_R9701
|
|
tristate "Epson RTC-9701JE"
|
|
help
|
|
If you say yes here you will get support for the
|
|
Epson RTC-9701JE SPI RTC chip.
|
|
|
|
This driver can also be built as a module. If so, the module
|
|
will be called rtc-r9701.
|
|
|
|
config RTC_DRV_RS5C348
|
|
tristate "Ricoh RS5C348A/B"
|
|
help
|
|
If you say yes here you get support for the
|
|
Ricoh RS5C348A and RS5C348B RTC chips.
|
|
|
|
This driver can also be built as a module. If so, the module
|
|
will be called rtc-rs5c348.
|
|
|
|
config RTC_DRV_DS3234
|
|
tristate "Maxim/Dallas DS3234"
|
|
help
|
|
If you say yes here you get support for the
|
|
Maxim/Dallas DS3234 SPI RTC chip.
|
|
|
|
This driver can also be built as a module. If so, the module
|
|
will be called rtc-ds3234.
|
|
|
|
config RTC_DRV_PCF2123
|
|
tristate "NXP PCF2123"
|
|
help
|
|
If you say yes here you get support for the NXP PCF2123
|
|
RTC chip.
|
|
|
|
This driver can also be built as a module. If so, the module
|
|
will be called rtc-pcf2123.
|
|
|
|
config RTC_DRV_RX4581
|
|
tristate "Epson RX-4581"
|
|
help
|
|
If you say yes here you will get support for the Epson RX-4581.
|
|
|
|
This driver can also be built as a module. If so the module
|
|
will be called rtc-rx4581.
|
|
|
|
config RTC_DRV_MCP795
|
|
tristate "Microchip MCP795"
|
|
help
|
|
If you say yes here you will get support for the Microchip MCP795.
|
|
|
|
This driver can also be built as a module. If so the module
|
|
will be called rtc-mcp795.
|
|
|
|
endif # SPI_MASTER
|
|
|
|
comment "Platform RTC drivers"
|
|
|
|
# this 'CMOS' RTC driver is arch dependent because <asm-generic/rtc.h>
|
|
# requires <asm/mc146818rtc.h> defining CMOS_READ/CMOS_WRITE, and a
|
|
# global rtc_lock ... it's not yet just another platform_device.
|
|
|
|
config RTC_DRV_CMOS
|
|
tristate "PC-style 'CMOS'"
|
|
depends on X86 || ARM || M32R || PPC || MIPS || SPARC64
|
|
default y if X86
|
|
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.
|
|
Specifically the original MC146818, compatibles like those in
|
|
PC south bridges, the DS12887 or M48T86, some multifunction
|
|
or LPC bus chips, and so on.
|
|
|
|
Your system will need to define the platform device used by
|
|
this driver, otherwise it won't be accessible. This means
|
|
you can safely enable this driver if you don't know whether
|
|
or not your board has this kind of hardware.
|
|
|
|
This driver can also be built as a module. If so, the module
|
|
will be called rtc-cmos.
|
|
|
|
config RTC_DRV_ALPHA
|
|
bool "Alpha PC-style CMOS"
|
|
depends on ALPHA
|
|
default y
|
|
help
|
|
Direct support for the real-time clock found on every Alpha
|
|
system, specifically MC146818 compatibles. If in doubt, say Y.
|
|
|
|
config RTC_DRV_VRTC
|
|
tristate "Virtual RTC for Intel MID platforms"
|
|
depends on X86_INTEL_MID
|
|
default y if X86_INTEL_MID
|
|
|
|
help
|
|
Say "yes" here to get direct support for the real time clock
|
|
found on Moorestown platforms. The VRTC is a emulated RTC that
|
|
derives its clock source from a real RTC in the PMIC. The MC146818
|
|
style programming interface is mostly conserved, but any
|
|
updates are done via IPC calls to the system controller FW.
|
|
|
|
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_DS1286
|
|
tristate "Dallas DS1286"
|
|
depends on HAS_IOMEM
|
|
help
|
|
If you say yes here you get support for the Dallas DS1286 RTC chips.
|
|
|
|
config RTC_DRV_DS1302
|
|
tristate "Dallas DS1302"
|
|
depends on SH_SECUREEDGE5410
|
|
help
|
|
If you say yes here you get support for the Dallas DS1302 RTC chips.
|
|
|
|
config RTC_DRV_DS1511
|
|
tristate "Dallas DS1511"
|
|
depends on HAS_IOMEM
|
|
help
|
|
If you say yes here you get support for the
|
|
Dallas DS1511 timekeeping/watchdog chip.
|
|
|
|
This driver can also be built as a module. If so, the module
|
|
will be called rtc-ds1511.
|
|
|
|
config RTC_DRV_DS1553
|
|
tristate "Maxim/Dallas DS1553"
|
|
depends on HAS_IOMEM
|
|
help
|
|
If you say yes here you get support for the
|
|
Maxim/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_DS1685_FAMILY
|
|
tristate "Dallas/Maxim DS1685 Family"
|
|
help
|
|
If you say yes here you get support for the Dallas/Maxim DS1685
|
|
family of real time chips. This family includes the DS1685/DS1687,
|
|
DS1689/DS1693, DS17285/DS17287, DS17485/DS17487, and
|
|
DS17885/DS17887 chips.
|
|
|
|
This driver can also be built as a module. If so, the module
|
|
will be called rtc-ds1685.
|
|
|
|
choice
|
|
prompt "Subtype"
|
|
depends on RTC_DRV_DS1685_FAMILY
|
|
default RTC_DRV_DS1685
|
|
|
|
config RTC_DRV_DS1685
|
|
bool "DS1685/DS1687"
|
|
help
|
|
This enables support for the Dallas/Maxim DS1685/DS1687 real time
|
|
clock chip.
|
|
|
|
This chip is commonly found in SGI O2 (IP32) and SGI Octane (IP30)
|
|
systems, as well as EPPC-405-UC modules by electronic system design
|
|
GmbH.
|
|
|
|
config RTC_DRV_DS1689
|
|
bool "DS1689/DS1693"
|
|
help
|
|
This enables support for the Dallas/Maxim DS1689/DS1693 real time
|
|
clock chip.
|
|
|
|
This is an older RTC chip, supplanted by the DS1685/DS1687 above,
|
|
which supports a few minor features such as Vcc, Vbat, and Power
|
|
Cycle counters, plus a customer-specific, 8-byte ROM/Serial number.
|
|
|
|
It also works for the even older DS1688/DS1691 RTC chips, which are
|
|
virtually the same and carry the same model number. Both chips
|
|
have 114 bytes of user NVRAM.
|
|
|
|
config RTC_DRV_DS17285
|
|
bool "DS17285/DS17287"
|
|
help
|
|
This enables support for the Dallas/Maxim DS17285/DS17287 real time
|
|
clock chip.
|
|
|
|
This chip features 2kb of extended NV-SRAM. It may possibly be
|
|
found in some SGI O2 systems (rare).
|
|
|
|
config RTC_DRV_DS17485
|
|
bool "DS17485/DS17487"
|
|
help
|
|
This enables support for the Dallas/Maxim DS17485/DS17487 real time
|
|
clock chip.
|
|
|
|
This chip features 4kb of extended NV-SRAM.
|
|
|
|
config RTC_DRV_DS17885
|
|
bool "DS17885/DS17887"
|
|
help
|
|
This enables support for the Dallas/Maxim DS17885/DS17887 real time
|
|
clock chip.
|
|
|
|
This chip features 8kb of extended NV-SRAM.
|
|
|
|
endchoice
|
|
|
|
config RTC_DS1685_PROC_REGS
|
|
bool "Display register values in /proc"
|
|
depends on RTC_DRV_DS1685_FAMILY && PROC_FS
|
|
help
|
|
Enable this to display a readout of all of the RTC registers in
|
|
/proc/drivers/rtc. Keep in mind that this can potentially lead
|
|
to lost interrupts, as reading Control Register C will clear
|
|
all pending IRQ flags.
|
|
|
|
Unless you are debugging this driver, choose N.
|
|
|
|
config RTC_DS1685_SYSFS_REGS
|
|
bool "SysFS access to RTC register bits"
|
|
depends on RTC_DRV_DS1685_FAMILY && SYSFS
|
|
help
|
|
Enable this to provide access to the RTC control register bits
|
|
in /sys. Some of the bits are read-write, others are read-only.
|
|
|
|
Keep in mind that reading Control C's bits automatically clears
|
|
all pending IRQ flags - this can cause lost interrupts.
|
|
|
|
If you know that you need access to these bits, choose Y, Else N.
|
|
|
|
config RTC_DRV_DS1742
|
|
tristate "Maxim/Dallas DS1742/1743"
|
|
depends on HAS_IOMEM
|
|
help
|
|
If you say yes here you get support for the
|
|
Maxim/Dallas DS1742/1743 timekeeping chip.
|
|
|
|
This driver can also be built as a module. If so, the module
|
|
will be called rtc-ds1742.
|
|
|
|
config RTC_DRV_DS2404
|
|
tristate "Maxim/Dallas DS2404"
|
|
help
|
|
If you say yes here you get support for the
|
|
Dallas DS2404 RTC chip.
|
|
|
|
This driver can also be built as a module. If so, the module
|
|
will be called rtc-ds2404.
|
|
|
|
config RTC_DRV_DA9052
|
|
tristate "Dialog DA9052/DA9053 RTC"
|
|
depends on PMIC_DA9052
|
|
help
|
|
Say y here to support the RTC driver for Dialog Semiconductor
|
|
DA9052-BC and DA9053-AA/Bx PMICs.
|
|
|
|
config RTC_DRV_DA9055
|
|
tristate "Dialog Semiconductor DA9055 RTC"
|
|
depends on MFD_DA9055
|
|
help
|
|
If you say yes here you will get support for the
|
|
RTC of the Dialog DA9055 PMIC.
|
|
|
|
This driver can also be built as a module. If so, the module
|
|
will be called rtc-da9055
|
|
|
|
config RTC_DRV_DA9063
|
|
tristate "Dialog Semiconductor DA9063/DA9062 RTC"
|
|
depends on MFD_DA9063 || MFD_DA9062
|
|
help
|
|
If you say yes here you will get support for the RTC subsystem
|
|
for the Dialog Semiconductor PMIC chips DA9063 and DA9062.
|
|
|
|
This driver can also be built as a module. If so, the module
|
|
will be called "rtc-da9063".
|
|
|
|
config RTC_DRV_EFI
|
|
tristate "EFI RTC"
|
|
depends on EFI && !X86
|
|
help
|
|
If you say yes here you will get support for the EFI
|
|
Real Time Clock.
|
|
|
|
This driver can also be built as a module. If so, the module
|
|
will be called rtc-efi.
|
|
|
|
config RTC_DRV_STK17TA8
|
|
tristate "Simtek STK17TA8"
|
|
depends on HAS_IOMEM
|
|
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_M48T86
|
|
tristate "ST M48T86/Dallas DS12887"
|
|
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_M48T35
|
|
tristate "ST M48T35"
|
|
depends on HAS_IOMEM
|
|
help
|
|
If you say Y here you will get support for the
|
|
ST M48T35 RTC chip.
|
|
|
|
This driver can also be built as a module, if so, the module
|
|
will be called "rtc-m48t35".
|
|
|
|
config RTC_DRV_M48T59
|
|
tristate "ST M48T59/M48T08/M48T02"
|
|
depends on HAS_IOMEM
|
|
help
|
|
If you say Y here you will get support for the
|
|
ST M48T59 RTC chip and compatible ST M48T08 and M48T02.
|
|
|
|
These chips are usually found in Sun SPARC and UltraSPARC
|
|
workstations.
|
|
|
|
This driver can also be built as a module, if so, the module
|
|
will be called "rtc-m48t59".
|
|
|
|
config RTC_DRV_MSM6242
|
|
tristate "Oki MSM6242"
|
|
depends on HAS_IOMEM
|
|
help
|
|
If you say yes here you get support for the Oki MSM6242
|
|
timekeeping chip. It is used in some Amiga models (e.g. A2000).
|
|
|
|
This driver can also be built as a module. If so, the module
|
|
will be called rtc-msm6242.
|
|
|
|
config RTC_DRV_BQ4802
|
|
tristate "TI BQ4802"
|
|
depends on HAS_IOMEM
|
|
help
|
|
If you say Y here you will get support for the TI
|
|
BQ4802 RTC chip.
|
|
|
|
This driver can also be built as a module. If so, the module
|
|
will be called rtc-bq4802.
|
|
|
|
config RTC_DRV_RP5C01
|
|
tristate "Ricoh RP5C01"
|
|
depends on HAS_IOMEM
|
|
help
|
|
If you say yes here you get support for the Ricoh RP5C01
|
|
timekeeping chip. It is used in some Amiga models (e.g. A3000
|
|
and A4000).
|
|
|
|
This driver can also be built as a module. If so, the module
|
|
will be called rtc-rp5c01.
|
|
|
|
config RTC_DRV_V3020
|
|
tristate "EM Microelectronic V3020"
|
|
help
|
|
If you say yes here you will get support for the
|
|
EM Microelectronic v3020 RTC chip.
|
|
|
|
This driver can also be built as a module. If so, the module
|
|
will be called rtc-v3020.
|
|
|
|
config RTC_DRV_WM831X
|
|
tristate "Wolfson Microelectronics WM831x RTC"
|
|
depends on MFD_WM831X
|
|
help
|
|
If you say yes here you will get support for the RTC subsystem
|
|
of the Wolfson Microelectronics WM831X series PMICs.
|
|
|
|
This driver can also be built as a module. If so, the module
|
|
will be called "rtc-wm831x".
|
|
|
|
config RTC_DRV_WM8350
|
|
tristate "Wolfson Microelectronics WM8350 RTC"
|
|
depends on MFD_WM8350
|
|
help
|
|
If you say yes here you will get support for the RTC subsystem
|
|
of the Wolfson Microelectronics WM8350.
|
|
|
|
This driver can also be built as a module. If so, the module
|
|
will be called "rtc-wm8350".
|
|
|
|
config RTC_DRV_SPEAR
|
|
tristate "SPEAR ST RTC"
|
|
depends on PLAT_SPEAR
|
|
default y
|
|
help
|
|
If you say Y here you will get support for the RTC found on
|
|
spear
|
|
|
|
config RTC_DRV_PCF50633
|
|
depends on MFD_PCF50633
|
|
tristate "NXP PCF50633 RTC"
|
|
help
|
|
If you say yes here you get support for the RTC subsystem of the
|
|
NXP PCF50633 used in embedded systems.
|
|
|
|
config RTC_DRV_AB3100
|
|
tristate "ST-Ericsson AB3100 RTC"
|
|
depends on AB3100_CORE
|
|
default y if AB3100_CORE
|
|
help
|
|
Select this to enable the ST-Ericsson AB3100 Mixed Signal IC RTC
|
|
support. This chip contains a battery- and capacitor-backed RTC.
|
|
|
|
config RTC_DRV_AB8500
|
|
tristate "ST-Ericsson AB8500 RTC"
|
|
depends on AB8500_CORE
|
|
select RTC_INTF_DEV
|
|
select RTC_INTF_DEV_UIE_EMUL
|
|
help
|
|
Select this to enable the ST-Ericsson AB8500 power management IC RTC
|
|
support. This chip contains a battery- and capacitor-backed RTC.
|
|
|
|
config RTC_DRV_NUC900
|
|
tristate "NUC910/NUC920 RTC driver"
|
|
depends on ARCH_W90X900
|
|
help
|
|
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.
|
|
|
|
config RTC_DRV_ZYNQMP
|
|
tristate "Xilinx Zynq Ultrascale+ MPSoC RTC"
|
|
depends on OF
|
|
help
|
|
If you say yes here you get support for the RTC controller found on
|
|
Xilinx Zynq Ultrascale+ MPSoC.
|
|
|
|
comment "on-CPU RTC drivers"
|
|
|
|
config RTC_DRV_DAVINCI
|
|
tristate "TI DaVinci RTC"
|
|
depends on ARCH_DAVINCI_DM365
|
|
help
|
|
If you say yes here you get support for the RTC on the
|
|
DaVinci platforms (DM365).
|
|
|
|
This driver can also be built as a module. If so, the module
|
|
will be called rtc-davinci.
|
|
|
|
config RTC_DRV_DIGICOLOR
|
|
tristate "Conexant Digicolor RTC"
|
|
depends on ARCH_DIGICOLOR
|
|
help
|
|
If you say yes here you get support for the RTC on Conexant
|
|
Digicolor platforms. This currently includes the CX92755 SoC.
|
|
|
|
This driver can also be built as a module. If so, the module
|
|
will be called rtc-digicolor.
|
|
|
|
config RTC_DRV_IMXDI
|
|
tristate "Freescale IMX DryIce Real Time Clock"
|
|
depends on ARCH_MXC
|
|
help
|
|
Support for Freescale IMX DryIce RTC
|
|
|
|
This driver can also be built as a module, if so, the module
|
|
will be called "rtc-imxdi".
|
|
|
|
config RTC_DRV_OMAP
|
|
tristate "TI OMAP Real Time Clock"
|
|
depends on ARCH_OMAP || ARCH_DAVINCI
|
|
help
|
|
Say "yes" here to support the on chip real time clock
|
|
present on TI OMAP1, AM33xx, DA8xx/OMAP-L13x, AM43xx and DRA7xx.
|
|
|
|
This driver can also be built as a module, if so, module
|
|
will be called rtc-omap.
|
|
|
|
config HAVE_S3C_RTC
|
|
bool
|
|
help
|
|
This will include RTC support for Samsung SoCs. If
|
|
you want to include RTC support for any machine, kindly
|
|
select this in the respective mach-XXXX/Kconfig file.
|
|
|
|
config RTC_DRV_S3C
|
|
tristate "Samsung S3C series SoC RTC"
|
|
depends on ARCH_S3C64XX || HAVE_S3C_RTC
|
|
help
|
|
RTC (Realtime Clock) driver for the clock inbuilt into the
|
|
Samsung S3C24XX series of SoCs. This can provide periodic
|
|
interrupt rates from 1Hz to 64Hz for user programs, and
|
|
wakeup from Alarm.
|
|
|
|
The driver currently supports the common features on all the
|
|
S3C24XX range, such as the S3C2410, S3C2412, S3C2413, S3C2440
|
|
and S3C2442.
|
|
|
|
This driver can also be build as a module. If so, the module
|
|
will be called rtc-s3c.
|
|
|
|
config RTC_DRV_EP93XX
|
|
tristate "Cirrus Logic EP93XX"
|
|
depends on ARCH_EP93XX
|
|
help
|
|
If you say yes here you get support for the
|
|
RTC embedded in the Cirrus Logic EP93XX processors.
|
|
|
|
This driver can also be built as a module. If so, the module
|
|
will be called rtc-ep93xx.
|
|
|
|
config RTC_DRV_SA1100
|
|
tristate "SA11x0/PXA2xx/PXA910"
|
|
depends on ARCH_SA1100 || ARCH_PXA || ARCH_MMP
|
|
help
|
|
If you say Y here you will get access to the real time clock
|
|
built into your SA11x0 or PXA2xx CPU.
|
|
|
|
To compile this driver as a module, choose M here: the
|
|
module will be called rtc-sa1100.
|
|
|
|
config RTC_DRV_SH
|
|
tristate "SuperH On-Chip RTC"
|
|
depends on SUPERH && HAVE_CLK
|
|
help
|
|
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
|
|
module will be called rtc-sh.
|
|
|
|
config RTC_DRV_VR41XX
|
|
tristate "NEC 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.
|
|
|
|
To compile this driver as a module, choose M here: the
|
|
module will be called rtc-vr41xx.
|
|
|
|
config RTC_DRV_PL030
|
|
tristate "ARM AMBA PL030 RTC"
|
|
depends on ARM_AMBA
|
|
help
|
|
If you say Y here you will get access to ARM AMBA
|
|
PrimeCell PL030 RTC found on certain ARM SOCs.
|
|
|
|
To compile this driver as a module, choose M here: the
|
|
module will be called rtc-pl030.
|
|
|
|
config RTC_DRV_PL031
|
|
tristate "ARM AMBA PL031 RTC"
|
|
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.
|
|
|
|
To compile this driver as a module, choose M here: the
|
|
module will be called rtc-pl031.
|
|
|
|
config RTC_DRV_AT32AP700X
|
|
tristate "AT32AP700X series RTC"
|
|
depends on PLATFORM_AT32AP
|
|
help
|
|
Driver for the internal RTC (Realtime Clock) on Atmel AVR32
|
|
AT32AP700x family processors.
|
|
|
|
config RTC_DRV_AT91RM9200
|
|
tristate "AT91RM9200 or some AT91SAM9 RTC"
|
|
depends on ARCH_AT91
|
|
help
|
|
Driver for the internal RTC (Realtime Clock) module found on
|
|
Atmel AT91RM9200's and some AT91SAM9 chips. On AT91SAM9 chips
|
|
this is powered by the backup power supply.
|
|
|
|
config RTC_DRV_AT91SAM9
|
|
tristate "AT91SAM9 RTT as RTC"
|
|
depends on ARCH_AT91
|
|
select MFD_SYSCON
|
|
help
|
|
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_AU1XXX
|
|
tristate "Au1xxx Counter0 RTC support"
|
|
depends on MIPS_ALCHEMY
|
|
help
|
|
This is a driver for the Au1xxx on-chip Counter0 (Time-Of-Year
|
|
counter) to be used as a RTC.
|
|
|
|
This driver can also be built as a module. If so, the module
|
|
will be called rtc-au1xxx.
|
|
|
|
config RTC_DRV_BFIN
|
|
tristate "Blackfin On-Chip RTC"
|
|
depends on BLACKFIN && !BF561
|
|
help
|
|
If you say yes here you will get support for the
|
|
Blackfin On-Chip Real Time Clock.
|
|
|
|
This driver can also be built as a module. If so, the module
|
|
will be called rtc-bfin.
|
|
|
|
config RTC_DRV_RS5C313
|
|
tristate "Ricoh RS5C313"
|
|
depends on SH_LANDISK
|
|
help
|
|
If you say yes here you get support for the Ricoh RS5C313 RTC chips.
|
|
|
|
config RTC_DRV_GENERIC
|
|
tristate "Generic RTC support"
|
|
# Please consider writing a new RTC driver instead of using the generic
|
|
# RTC abstraction
|
|
depends on PARISC || M68K || PPC || SUPERH32
|
|
help
|
|
Say Y or M here to enable RTC support on systems using the generic
|
|
RTC abstraction. If you do not know what you are doing, you should
|
|
just say Y.
|
|
|
|
config RTC_DRV_PXA
|
|
tristate "PXA27x/PXA3xx"
|
|
depends on ARCH_PXA
|
|
select RTC_DRV_SA1100
|
|
help
|
|
If you say Y here you will get access to the real time clock
|
|
built into your PXA27x or PXA3xx CPU. This RTC is actually 2 RTCs
|
|
consisting of an SA1100 compatible RTC and the extended PXA RTC.
|
|
|
|
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"
|
|
depends on ARCH_VT8500
|
|
help
|
|
If you say Y here you will get access to the real time clock
|
|
built into your VIA VT8500 SoC or its relatives.
|
|
|
|
|
|
config RTC_DRV_SUN4V
|
|
bool "SUN4V Hypervisor RTC"
|
|
depends on SPARC64
|
|
help
|
|
If you say Y here you will get support for the Hypervisor
|
|
based RTC on SUN4V systems.
|
|
|
|
config RTC_DRV_SUN6I
|
|
tristate "Allwinner A31 RTC"
|
|
depends on MACH_SUN6I || MACH_SUN8I
|
|
help
|
|
If you say Y here you will get support for the RTC found on
|
|
Allwinner A31.
|
|
|
|
config RTC_DRV_SUNXI
|
|
tristate "Allwinner sun4i/sun7i RTC"
|
|
depends on MACH_SUN4I || MACH_SUN7I
|
|
help
|
|
If you say Y here you will get support for the RTC found on
|
|
Allwinner A10/A20.
|
|
|
|
config RTC_DRV_STARFIRE
|
|
bool "Starfire RTC"
|
|
depends on SPARC64
|
|
help
|
|
If you say Y here you will get support for the RTC found on
|
|
Starfire systems.
|
|
|
|
config RTC_DRV_TX4939
|
|
tristate "TX4939 SoC"
|
|
depends on SOC_TX4939
|
|
help
|
|
Driver for the internal RTC (Realtime Clock) module found on
|
|
Toshiba TX4939 SoC.
|
|
|
|
config RTC_DRV_MV
|
|
tristate "Marvell SoC RTC"
|
|
depends on ARCH_DOVE || ARCH_MVEBU
|
|
help
|
|
If you say yes here you will get support for the in-chip RTC
|
|
that can be found in some of Marvell's SoC devices, such as
|
|
the Kirkwood 88F6281 and 88F6192.
|
|
|
|
This driver can also be built as a module. If so, the module
|
|
will be called rtc-mv.
|
|
|
|
config RTC_DRV_ARMADA38X
|
|
tristate "Armada 38x Marvell SoC RTC"
|
|
depends on ARCH_MVEBU
|
|
help
|
|
If you say yes here you will get support for the in-chip RTC
|
|
that can be found in the Armada 38x Marvell's SoC device
|
|
|
|
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
|
|
help
|
|
If you say yes here you will get support for the RTC on PS3.
|
|
|
|
This driver can also be built as a module. If so, the module
|
|
will be called rtc-ps3.
|
|
|
|
config RTC_DRV_COH901331
|
|
tristate "ST-Ericsson COH 901 331 RTC"
|
|
depends on ARCH_U300
|
|
help
|
|
If you say Y here you will get access to ST-Ericsson
|
|
COH 901 331 RTC clock found in some ST-Ericsson Mobile
|
|
Platforms.
|
|
|
|
This driver can also be built as a module. If so, the module
|
|
will be called "rtc-coh901331".
|
|
|
|
|
|
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.
|
|
|
|
This driver can also be built as a module. If so, the module
|
|
will be called rtc-stmp3xxx.
|
|
|
|
config RTC_DRV_PCAP
|
|
tristate "PCAP RTC"
|
|
depends on EZX_PCAP
|
|
help
|
|
If you say Y here you will get support for the RTC found on
|
|
the PCAP2 ASIC used on some Motorola phones.
|
|
|
|
config RTC_DRV_MC13XXX
|
|
depends on MFD_MC13XXX
|
|
tristate "Freescale MC13xxx RTC"
|
|
help
|
|
This enables support for the RTCs found on Freescale's PMICs
|
|
MC13783 and MC13892.
|
|
|
|
config RTC_DRV_MPC5121
|
|
tristate "Freescale MPC5121 built-in RTC"
|
|
depends on PPC_MPC512x || PPC_MPC52xx
|
|
help
|
|
If you say yes here you will get support for the
|
|
built-in RTC on MPC5121 or on MPC5200.
|
|
|
|
This driver can also be built as a module. If so, the module
|
|
will be called rtc-mpc5121.
|
|
|
|
config RTC_DRV_JZ4740
|
|
tristate "Ingenic JZ4740 SoC"
|
|
depends on MACH_JZ4740
|
|
help
|
|
If you say yes here you get support for the Ingenic JZ4740 SoC RTC
|
|
controller.
|
|
|
|
This driver can also be buillt as a module. If so, the module
|
|
will be called rtc-jz4740.
|
|
|
|
config RTC_DRV_LPC24XX
|
|
tristate "NXP RTC for LPC178x/18xx/408x/43xx"
|
|
depends on ARCH_LPC18XX || COMPILE_TEST
|
|
depends on OF && HAS_IOMEM
|
|
help
|
|
This enables support for the NXP RTC found which can be found on
|
|
NXP LPC178x/18xx/408x/43xx devices.
|
|
|
|
If you have one of the devices above enable this driver to use
|
|
the hardware RTC. This driver can also be buillt as a module. If
|
|
so, the module will be called rtc-lpc24xx.
|
|
|
|
config RTC_DRV_LPC32XX
|
|
depends on ARCH_LPC32XX
|
|
tristate "NXP LPC32XX RTC"
|
|
help
|
|
This enables support for the NXP RTC in the LPC32XX
|
|
|
|
This driver can also be buillt as a module. If so, the module
|
|
will be called rtc-lpc32xx.
|
|
|
|
config RTC_DRV_PM8XXX
|
|
tristate "Qualcomm PMIC8XXX RTC"
|
|
depends on MFD_PM8XXX || MFD_SPMI_PMIC
|
|
help
|
|
If you say yes here you get support for the
|
|
Qualcomm PMIC8XXX RTC.
|
|
|
|
To compile this driver as a module, choose M here: the
|
|
module will be called rtc-pm8xxx.
|
|
|
|
config RTC_DRV_TEGRA
|
|
tristate "NVIDIA Tegra Internal RTC driver"
|
|
depends on ARCH_TEGRA
|
|
help
|
|
If you say yes here you get support for the
|
|
Tegra 200 series internal RTC module.
|
|
|
|
This drive can also be built as a module. If so, the module
|
|
will be called rtc-tegra.
|
|
|
|
config RTC_DRV_TILE
|
|
tristate "Tilera hypervisor RTC support"
|
|
depends on TILE
|
|
help
|
|
Enable support for the Linux driver side of the Tilera
|
|
hypervisor's real-time clock interface.
|
|
|
|
config RTC_DRV_PUV3
|
|
tristate "PKUnity v3 RTC support"
|
|
depends on ARCH_PUV3
|
|
help
|
|
This enables support for the RTC in the PKUnity-v3 SoCs.
|
|
|
|
This drive can also be built as a module. If so, the module
|
|
will be called rtc-puv3.
|
|
|
|
config RTC_DRV_LOONGSON1
|
|
tristate "loongson1 RTC support"
|
|
depends on MACH_LOONGSON32
|
|
help
|
|
This is a driver for the loongson1 on-chip Counter0 (Time-Of-Year
|
|
counter) to be used as a RTC.
|
|
|
|
This driver can also be built as a module. If so, the module
|
|
will be called rtc-ls1x.
|
|
|
|
config RTC_DRV_MXC
|
|
tristate "Freescale MXC Real Time Clock"
|
|
depends on ARCH_MXC
|
|
help
|
|
If you say yes here you get support for the Freescale MXC
|
|
RTC module.
|
|
|
|
This driver can also be built as a module, if so, the module
|
|
will be called "rtc-mxc".
|
|
|
|
config RTC_DRV_SNVS
|
|
tristate "Freescale SNVS RTC support"
|
|
select REGMAP_MMIO
|
|
depends on HAS_IOMEM
|
|
depends on OF
|
|
help
|
|
If you say yes here you get support for the Freescale SNVS
|
|
Low Power (LP) RTC module.
|
|
|
|
This driver can also be built as a module, if so, the module
|
|
will be called "rtc-snvs".
|
|
|
|
config RTC_DRV_SIRFSOC
|
|
tristate "SiRFSOC RTC"
|
|
depends on ARCH_SIRF
|
|
help
|
|
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
|
|
help
|
|
If you say yes here you get support for the MOXA ART
|
|
RTC module.
|
|
|
|
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.
|
|
|
|
This driver can also be built as a module, if so, the module
|
|
will be called "rtc-xgene".
|
|
|
|
comment "HID Sensor RTC drivers"
|
|
|
|
config RTC_DRV_HID_SENSOR_TIME
|
|
tristate "HID Sensor Time"
|
|
depends on USB_HID
|
|
select IIO
|
|
select HID_SENSOR_HUB
|
|
select HID_SENSOR_IIO_COMMON
|
|
help
|
|
Say yes here to build support for the HID Sensors of type Time.
|
|
This drivers makes such sensors available as RTCs.
|
|
|
|
If this driver is compiled as a module, it will be named
|
|
rtc-hid-sensor-time.
|
|
|
|
|
|
endif # RTC_CLASS
|