17be2c7c9SDavid Brownell# 2c58411e9SAlessandro Zummo# RTC class/drivers configuration 3c58411e9SAlessandro Zummo# 4c58411e9SAlessandro Zummo 5c58411e9SAlessandro Zummoconfig RTC_LIB 6b4d246b1SJohn Stultz bool 70c86edc0SAlessandro Zummo 8bb35fb20SJan Engelhardtmenuconfig RTC_CLASS 9b4d246b1SJohn Stultz bool "Real Time Clock" 100c86edc0SAlessandro Zummo default n 113369465eSAl Viro depends on !S390 && !UML 120c86edc0SAlessandro Zummo select RTC_LIB 130c86edc0SAlessandro Zummo help 140c86edc0SAlessandro Zummo Generic RTC class support. If you say yes here, you will 150c86edc0SAlessandro Zummo be allowed to plug one or more RTCs to your system. You will 1627ae4104SAdrian Bunk probably want to enable one or more of the interfaces below. 170c86edc0SAlessandro Zummo 18bb35fb20SJan Engelhardtif RTC_CLASS 19bb35fb20SJan Engelhardt 200c86edc0SAlessandro Zummoconfig RTC_HCTOSYS 217ca1d488SDavid Brownell bool "Set system time from RTC on startup and resume" 220c86edc0SAlessandro Zummo default y 230c86edc0SAlessandro Zummo help 247ca1d488SDavid Brownell If you say yes here, the system time (wall clock) will be set using 257ca1d488SDavid Brownell the value read from a specified RTC device. This is useful to avoid 267ca1d488SDavid Brownell unnecessary fsck runs at boot time, and to network better. 270c86edc0SAlessandro Zummo 28023f333aSJason Gunthorpeconfig RTC_SYSTOHC 29023f333aSJason Gunthorpe bool "Set the RTC time based on NTP synchronization" 30023f333aSJason Gunthorpe default y 31023f333aSJason Gunthorpe help 32023f333aSJason Gunthorpe If you say yes here, the system time (wall clock) will be stored 33023f333aSJason Gunthorpe in the RTC specified by RTC_HCTOSYS_DEVICE approximately every 11 34023f333aSJason Gunthorpe minutes if userspace reports synchronized NTP status. 35023f333aSJason Gunthorpe 360c86edc0SAlessandro Zummoconfig RTC_HCTOSYS_DEVICE 377ca1d488SDavid Brownell string "RTC used to set the system time" 38023f333aSJason Gunthorpe depends on RTC_HCTOSYS = y || RTC_SYSTOHC = y 390c86edc0SAlessandro Zummo default "rtc0" 400c86edc0SAlessandro Zummo help 417ca1d488SDavid Brownell The RTC device that will be used to (re)initialize the system 427ca1d488SDavid Brownell clock, usually rtc0. Initialization is done when the system 43779d2089SDavid Brownell starts up, and when it resumes from a low power state. This 44779d2089SDavid Brownell device should record time in UTC, since the kernel won't do 45779d2089SDavid Brownell timezone correction. 467ca1d488SDavid Brownell 4755ff1abaSDavid Brownell The driver for this RTC device must be loaded before late_initcall 4855ff1abaSDavid Brownell functions run, so it must usually be statically linked. 4955ff1abaSDavid Brownell 507ca1d488SDavid Brownell This clock should be battery-backed, so that it reads the correct 517ca1d488SDavid Brownell time when the system boots from a power-off state. Otherwise, your 527ca1d488SDavid Brownell system will need an external clock source (like an NTP server). 537ca1d488SDavid Brownell 547ca1d488SDavid Brownell If the clock you specify here is not battery backed, it may still 557ca1d488SDavid Brownell be useful to reinitialize system time when resuming from system 567ca1d488SDavid Brownell sleep states. Do not specify an RTC here unless it stays powered 577ca1d488SDavid Brownell during all this system's supported sleep states. 580c86edc0SAlessandro Zummo 599e86ecb6SDavid Brownellconfig RTC_DEBUG 609e86ecb6SDavid Brownell bool "RTC debug support" 619e86ecb6SDavid Brownell help 629e86ecb6SDavid Brownell Say yes here to enable debugging support in the RTC framework 639e86ecb6SDavid Brownell and individual RTC drivers. 649e86ecb6SDavid Brownell 650c86edc0SAlessandro Zummocomment "RTC interfaces" 660c86edc0SAlessandro Zummo 67c5c3e192SAlessandro Zummoconfig RTC_INTF_SYSFS 68e40659c5SDavid Brownell boolean "/sys/class/rtc/rtcN (sysfs)" 69bb35fb20SJan Engelhardt depends on SYSFS 708dc08395SKevin Hilman default RTC_CLASS 71c5c3e192SAlessandro Zummo help 729e86ecb6SDavid Brownell Say yes here if you want to use your RTCs using sysfs interfaces, 739e86ecb6SDavid Brownell /sys/class/rtc/rtc0 through /sys/.../rtcN. 74c5c3e192SAlessandro Zummo 75ae64d169SAlessandro Zummo If unsure, say Y. 76c5c3e192SAlessandro Zummo 77728a2947SAlessandro Zummoconfig RTC_INTF_PROC 7892589c98SKim, Milo boolean "/proc/driver/rtc (procfs for rtcN)" 79bb35fb20SJan Engelhardt depends on PROC_FS 808dc08395SKevin Hilman default RTC_CLASS 81728a2947SAlessandro Zummo help 8292589c98SKim, Milo Say yes here if you want to use your system clock RTC through 8392589c98SKim, Milo the proc interface, /proc/driver/rtc. 8492589c98SKim, Milo Other RTCs will not be available through that API. 8592589c98SKim, Milo If there is no RTC for the system clock, then the first RTC(rtc0) 8692589c98SKim, Milo is used by default. 87728a2947SAlessandro Zummo 88ae64d169SAlessandro Zummo If unsure, say Y. 89728a2947SAlessandro Zummo 90e824290eSAlessandro Zummoconfig RTC_INTF_DEV 91e40659c5SDavid Brownell boolean "/dev/rtcN (character devices)" 928dc08395SKevin Hilman default RTC_CLASS 93e824290eSAlessandro Zummo help 949e86ecb6SDavid Brownell Say yes here if you want to use your RTCs using the /dev 959e86ecb6SDavid Brownell interfaces, which "udev" sets up as /dev/rtc0 through 96ae64d169SAlessandro Zummo /dev/rtcN. 97e824290eSAlessandro Zummo 98ae64d169SAlessandro Zummo You may want to set up a symbolic link so one of these 99ae64d169SAlessandro Zummo can be accessed as /dev/rtc, which is a name 100ae64d169SAlessandro Zummo expected by "hwclock" and some other programs. Recent 101ae64d169SAlessandro Zummo versions of "udev" are known to set up the symlink for you. 102ae64d169SAlessandro Zummo 103ae64d169SAlessandro Zummo If unsure, say Y. 104e824290eSAlessandro Zummo 1056e57b1d6SJohn Stultzconfig RTC_INTF_DEV_UIE_EMUL 1066e57b1d6SJohn Stultz bool "RTC UIE emulation on dev interface" 1076e57b1d6SJohn Stultz depends on RTC_INTF_DEV 1086e57b1d6SJohn Stultz help 1096e57b1d6SJohn Stultz Provides an emulation for RTC_UIE if the underlying rtc chip 1106e57b1d6SJohn Stultz driver does not expose RTC_UIE ioctls. Those requests generate 1116e57b1d6SJohn Stultz once-per-second update interrupts, used for synchronization. 1126e57b1d6SJohn Stultz 1136e57b1d6SJohn Stultz The emulation code will read the time from the hardware 1146e57b1d6SJohn Stultz clock several times per second, please enable this option 1156e57b1d6SJohn Stultz only if you know that you really need it. 1166e57b1d6SJohn Stultz 11709a21e56SAlessandro Zummoconfig RTC_DRV_TEST 11809a21e56SAlessandro Zummo tristate "Test driver/device" 11909a21e56SAlessandro Zummo help 12009a21e56SAlessandro Zummo If you say yes here you get support for the 12109a21e56SAlessandro Zummo RTC test driver. It's a software RTC which can be 12209a21e56SAlessandro Zummo used to test the RTC subsystem APIs. It gets 12309a21e56SAlessandro Zummo the time from the system clock. 12409a21e56SAlessandro Zummo You want this driver only if you are doing development 12509a21e56SAlessandro Zummo on the RTC subsystem. Please read the source code 12609a21e56SAlessandro Zummo for further details. 12709a21e56SAlessandro Zummo 12809a21e56SAlessandro Zummo This driver can also be built as a module. If so, the module 12909a21e56SAlessandro Zummo will be called rtc-test. 13009a21e56SAlessandro Zummo 13109a21e56SAlessandro Zummocomment "I2C RTC drivers" 132bb35fb20SJan Engelhardt depends on I2C 133bb35fb20SJan Engelhardt 134bb35fb20SJan Engelhardtif I2C 13509a21e56SAlessandro Zummo 136008b3040SHaojian Zhuangconfig RTC_DRV_88PM860X 137008b3040SHaojian Zhuang tristate "Marvell 88PM860x" 1386b8029faSVenu Byravarasu depends on I2C && MFD_88PM860X 139008b3040SHaojian Zhuang help 140008b3040SHaojian Zhuang If you say yes here you get support for RTC function in Marvell 141008b3040SHaojian Zhuang 88PM860x chips. 142008b3040SHaojian Zhuang 143008b3040SHaojian Zhuang This driver can also be built as a module. If so, the module 144008b3040SHaojian Zhuang will be called rtc-88pm860x. 145008b3040SHaojian Zhuang 1462985c29cSQiao Zhouconfig RTC_DRV_88PM80X 1472985c29cSQiao Zhou tristate "Marvell 88PM80x" 1486b8029faSVenu Byravarasu depends on I2C && MFD_88PM800 1492985c29cSQiao Zhou help 1502985c29cSQiao Zhou If you say yes here you get support for RTC function in Marvell 1512985c29cSQiao Zhou 88PM80x chips. 1522985c29cSQiao Zhou 1532985c29cSQiao Zhou This driver can also be built as a module. If so, the module 1542985c29cSQiao Zhou will be called rtc-88pm80x. 1552985c29cSQiao Zhou 156b4506261SLaxman Dewanganconfig RTC_DRV_AS3722 157b4506261SLaxman Dewangan tristate "ams AS3722 RTC driver" 158b4506261SLaxman Dewangan depends on MFD_AS3722 159b4506261SLaxman Dewangan help 160b4506261SLaxman Dewangan If you say yes here you get support for the RTC of ams AS3722 PMIC 161b4506261SLaxman Dewangan chips. 162b4506261SLaxman Dewangan 163b4506261SLaxman Dewangan This driver can also be built as a module. If so, the module 164b4506261SLaxman Dewangan will be called rtc-as3722. 165b4506261SLaxman Dewangan 16609a21e56SAlessandro Zummoconfig RTC_DRV_DS1307 167a2166858SMatthias Fuchs tristate "Dallas/Maxim DS1307/37/38/39/40, ST M41T00, EPSON RX-8025" 16809a21e56SAlessandro Zummo help 16909a21e56SAlessandro Zummo If you say yes here you get support for various compatible RTC 17009a21e56SAlessandro Zummo chips (often with battery backup) connected with I2C. This driver 17109a21e56SAlessandro Zummo should handle DS1307, DS1337, DS1338, DS1339, DS1340, ST M41T00, 172a2166858SMatthias Fuchs EPSON RX-8025 and probably other chips. In some cases the RTC 173a2166858SMatthias Fuchs must already have been initialized (by manufacturing or a 174a2166858SMatthias Fuchs bootloader). 17509a21e56SAlessandro Zummo 17609a21e56SAlessandro Zummo The first seven registers on these chips hold an RTC, and other 17709a21e56SAlessandro Zummo registers may add features such as NVRAM, a trickle charger for 178682d73f6SDavid Brownell the RTC/NVRAM backup power, and alarms. NVRAM is visible in 179682d73f6SDavid Brownell sysfs, but other chip features may not be available. 18009a21e56SAlessandro Zummo 18109a21e56SAlessandro Zummo This driver can also be built as a module. If so, the module 18209a21e56SAlessandro Zummo will be called rtc-ds1307. 18309a21e56SAlessandro Zummo 184bf4994d7SScott Woodconfig RTC_DRV_DS1374 18509b6bdb3SAlessandro Zummo tristate "Dallas/Maxim DS1374" 1866b8029faSVenu Byravarasu depends on I2C 187bf4994d7SScott Wood help 188bf4994d7SScott Wood If you say yes here you get support for Dallas Semiconductor 189bf4994d7SScott Wood DS1374 real-time clock chips. If an interrupt is associated 190bf4994d7SScott Wood with the device, the alarm functionality is supported. 191bf4994d7SScott Wood 192bf4994d7SScott Wood This driver can also be built as a module. If so, the module 193bf4994d7SScott Wood will be called rtc-ds1374. 194bf4994d7SScott Wood 195*920f91e5SSøren Andersenconfig RTC_DRV_DS1374_WDT 196*920f91e5SSøren Andersen bool "Dallas/Maxim DS1374 watchdog timer" 197*920f91e5SSøren Andersen depends on RTC_DRV_DS1374 198*920f91e5SSøren Andersen help 199*920f91e5SSøren Andersen If you say Y here you will get support for the 200*920f91e5SSøren Andersen watchdog timer in the Dallas Semiconductor DS1374 201*920f91e5SSøren Andersen real-time clock chips. 202*920f91e5SSøren Andersen 20309a21e56SAlessandro Zummoconfig RTC_DRV_DS1672 20409a21e56SAlessandro Zummo tristate "Dallas/Maxim DS1672" 20509a21e56SAlessandro Zummo help 20609a21e56SAlessandro Zummo If you say yes here you get support for the 20709a21e56SAlessandro Zummo Dallas/Maxim DS1672 timekeeping chip. 20809a21e56SAlessandro Zummo 20909a21e56SAlessandro Zummo This driver can also be built as a module. If so, the module 21009a21e56SAlessandro Zummo will be called rtc-ds1672. 21109a21e56SAlessandro Zummo 212c03675f0SRoy Zangconfig RTC_DRV_DS3232 213c03675f0SRoy Zang tristate "Dallas/Maxim DS3232" 2146b8029faSVenu Byravarasu depends on I2C 215c03675f0SRoy Zang help 216c03675f0SRoy Zang If you say yes here you get support for Dallas Semiconductor 217f46418c5SLan Chunhe-B25806 DS3232 real-time clock chips. If an interrupt is associated 218f46418c5SLan Chunhe-B25806 with the device, the alarm functionality is supported. 219c03675f0SRoy Zang 220c03675f0SRoy Zang This driver can also be built as a module. If so, the module 221c03675f0SRoy Zang will be called rtc-ds3232. 222c03675f0SRoy Zang 223dcaf0384SHeiko Stuebnerconfig RTC_DRV_HYM8563 224dcaf0384SHeiko Stuebner tristate "Haoyu Microelectronics HYM8563" 225dcaf0384SHeiko Stuebner depends on I2C && OF 226dcaf0384SHeiko Stuebner help 227dcaf0384SHeiko Stuebner Say Y to enable support for the HYM8563 I2C RTC chip. Apart 228dcaf0384SHeiko Stuebner from the usual rtc functions it provides a clock output of 229dcaf0384SHeiko Stuebner up to 32kHz. 230dcaf0384SHeiko Stuebner 231dcaf0384SHeiko Stuebner This driver can also be built as a module. If so, the module 232dcaf0384SHeiko Stuebner will be called rtc-hym8563. 233dcaf0384SHeiko Stuebner 23438ae176eSKim, Miloconfig RTC_DRV_LP8788 23538ae176eSKim, Milo tristate "TI LP8788 RTC driver" 23638ae176eSKim, Milo depends on MFD_LP8788 23738ae176eSKim, Milo help 23838ae176eSKim, Milo Say Y to enable support for the LP8788 RTC/ALARM driver. 23938ae176eSKim, Milo 24009a21e56SAlessandro Zummoconfig RTC_DRV_MAX6900 24109b6bdb3SAlessandro Zummo tristate "Maxim MAX6900" 24209a21e56SAlessandro Zummo help 24309a21e56SAlessandro Zummo If you say yes here you will get support for the 24409a21e56SAlessandro Zummo Maxim MAX6900 I2C RTC chip. 24509a21e56SAlessandro Zummo 24609a21e56SAlessandro Zummo This driver can also be built as a module. If so, the module 24709a21e56SAlessandro Zummo will be called rtc-max6900. 24809a21e56SAlessandro Zummo 24994c01ab6SStephen Warrenconfig RTC_DRV_MAX8907 25094c01ab6SStephen Warren tristate "Maxim MAX8907" 25194c01ab6SStephen Warren depends on MFD_MAX8907 25294c01ab6SStephen Warren help 25394c01ab6SStephen Warren If you say yes here you will get support for the 25494c01ab6SStephen Warren RTC of Maxim MAX8907 PMIC. 25594c01ab6SStephen Warren 25694c01ab6SStephen Warren This driver can also be built as a module. If so, the module 25794c01ab6SStephen Warren will be called rtc-max8907. 25894c01ab6SStephen Warren 259a39069f6SHaojian Zhuangconfig RTC_DRV_MAX8925 260a39069f6SHaojian Zhuang tristate "Maxim MAX8925" 261a39069f6SHaojian Zhuang depends on MFD_MAX8925 262a39069f6SHaojian Zhuang help 263a39069f6SHaojian Zhuang If you say yes here you will get support for the 264a39069f6SHaojian Zhuang RTC of Maxim MAX8925 PMIC. 265a39069f6SHaojian Zhuang 266a39069f6SHaojian Zhuang This driver can also be built as a module. If so, the module 267a39069f6SHaojian Zhuang will be called rtc-max8925. 268a39069f6SHaojian Zhuang 2699b16c0a4SJoonyoung Shimconfig RTC_DRV_MAX8998 2709b16c0a4SJoonyoung Shim tristate "Maxim MAX8998" 2719b16c0a4SJoonyoung Shim depends on MFD_MAX8998 2729b16c0a4SJoonyoung Shim help 2739b16c0a4SJoonyoung Shim If you say yes here you will get support for the 2749b16c0a4SJoonyoung Shim RTC of Maxim MAX8998 PMIC. 2759b16c0a4SJoonyoung Shim 2769b16c0a4SJoonyoung Shim This driver can also be built as a module. If so, the module 2779b16c0a4SJoonyoung Shim will be called rtc-max8998. 2789b16c0a4SJoonyoung Shim 2795e0b2704SJonghwa Leeconfig RTC_DRV_MAX8997 2805e0b2704SJonghwa Lee tristate "Maxim MAX8997" 2815e0b2704SJonghwa Lee depends on MFD_MAX8997 2825e0b2704SJonghwa Lee help 2835e0b2704SJonghwa Lee If you say yes here you will get support for the 2845e0b2704SJonghwa Lee RTC of Maxim MAX8997 PMIC. 2855e0b2704SJonghwa Lee 2865e0b2704SJonghwa Lee This driver can also be built as a module. If so, the module 2875e0b2704SJonghwa Lee will be called rtc-max8997. 2885e0b2704SJonghwa Lee 289fca1dd03SJonghwa Leeconfig RTC_DRV_MAX77686 290fca1dd03SJonghwa Lee tristate "Maxim MAX77686" 291fca1dd03SJonghwa Lee depends on MFD_MAX77686 292fca1dd03SJonghwa Lee help 293fca1dd03SJonghwa Lee If you say yes here you will get support for the 294fca1dd03SJonghwa Lee RTC of Maxim MAX77686 PMIC. 295fca1dd03SJonghwa Lee 296fca1dd03SJonghwa Lee This driver can also be built as a module. If so, the module 297fca1dd03SJonghwa Lee will be called rtc-max77686. 298fca1dd03SJonghwa Lee 2993ca1e326SChris Zhongconfig RTC_DRV_RK808 3003ca1e326SChris Zhong tristate "Rockchip RK808 RTC" 3013ca1e326SChris Zhong depends on MFD_RK808 3023ca1e326SChris Zhong help 3033ca1e326SChris Zhong If you say yes here you will get support for the 3043ca1e326SChris Zhong RTC of RK808 PMIC. 3053ca1e326SChris Zhong 3063ca1e326SChris Zhong This driver can also be built as a module. If so, the module 3073ca1e326SChris Zhong will be called rk808-rtc. 3083ca1e326SChris Zhong 309a4d4121bSJavier Martinez Canillasconfig RTC_DRV_MAX77802 310a4d4121bSJavier Martinez Canillas tristate "Maxim 77802 RTC" 311a4d4121bSJavier Martinez Canillas depends on MFD_MAX77686 312a4d4121bSJavier Martinez Canillas help 313a4d4121bSJavier Martinez Canillas If you say yes here you will get support for the 314a4d4121bSJavier Martinez Canillas RTC of Maxim MAX77802 PMIC. 315a4d4121bSJavier Martinez Canillas 316a4d4121bSJavier Martinez Canillas This driver can also be built as a module. If so, the module 317a4d4121bSJavier Martinez Canillas will be called rtc-max77802. 318a4d4121bSJavier Martinez Canillas 31909a21e56SAlessandro Zummoconfig RTC_DRV_RS5C372 3205d4529beSPaul Mundt tristate "Ricoh R2025S/D, RS5C372A/B, RV5C386, RV5C387A" 32109a21e56SAlessandro Zummo help 32209a21e56SAlessandro Zummo If you say yes here you get support for the 3235d4529beSPaul Mundt Ricoh R2025S/D, RS5C372A, RS5C372B, RV5C386, and RV5C387A RTC chips. 32409a21e56SAlessandro Zummo 32509a21e56SAlessandro Zummo This driver can also be built as a module. If so, the module 32609a21e56SAlessandro Zummo will be called rtc-rs5c372. 32709a21e56SAlessandro Zummo 32809a21e56SAlessandro Zummoconfig RTC_DRV_ISL1208 32909b6bdb3SAlessandro Zummo tristate "Intersil ISL1208" 33009a21e56SAlessandro Zummo help 33109a21e56SAlessandro Zummo If you say yes here you get support for the 33209b6bdb3SAlessandro Zummo Intersil ISL1208 RTC chip. 33309a21e56SAlessandro Zummo 33409a21e56SAlessandro Zummo This driver can also be built as a module. If so, the module 33509a21e56SAlessandro Zummo will be called rtc-isl1208. 33609a21e56SAlessandro Zummo 337d6c7428fSRoman Fietzeconfig RTC_DRV_ISL12022 338d6c7428fSRoman Fietze tristate "Intersil ISL12022" 339d6c7428fSRoman Fietze help 340d6c7428fSRoman Fietze If you say yes here you get support for the 341d6c7428fSRoman Fietze Intersil ISL12022 RTC chip. 342d6c7428fSRoman Fietze 343d6c7428fSRoman Fietze This driver can also be built as a module. If so, the module 344d6c7428fSRoman Fietze will be called rtc-isl12022. 345d6c7428fSRoman Fietze 34670e12337SArnaud Ebalardconfig RTC_DRV_ISL12057 34770e12337SArnaud Ebalard depends on I2C 34870e12337SArnaud Ebalard select REGMAP_I2C 34970e12337SArnaud Ebalard tristate "Intersil ISL12057" 35070e12337SArnaud Ebalard help 35170e12337SArnaud Ebalard If you say yes here you get support for the Intersil ISL12057 35270e12337SArnaud Ebalard I2C RTC chip. 35370e12337SArnaud Ebalard 35470e12337SArnaud Ebalard This driver can also be built as a module. If so, the module 35570e12337SArnaud Ebalard will be called rtc-isl12057. 35670e12337SArnaud Ebalard 35709a21e56SAlessandro Zummoconfig RTC_DRV_X1205 35809a21e56SAlessandro Zummo tristate "Xicor/Intersil X1205" 35909a21e56SAlessandro Zummo help 36009a21e56SAlessandro Zummo If you say yes here you get support for the 36109a21e56SAlessandro Zummo Xicor/Intersil X1205 RTC chip. 36209a21e56SAlessandro Zummo 36309a21e56SAlessandro Zummo This driver can also be built as a module. If so, the module 36409a21e56SAlessandro Zummo will be called rtc-x1205. 36509a21e56SAlessandro Zummo 3660101e53cSLaxman Dewanganconfig RTC_DRV_PALMAS 3670101e53cSLaxman Dewangan tristate "TI Palmas RTC driver" 3680101e53cSLaxman Dewangan depends on MFD_PALMAS 3690101e53cSLaxman Dewangan help 3700101e53cSLaxman Dewangan If you say yes here you get support for the RTC of TI PALMA series PMIC 3710101e53cSLaxman Dewangan chips. 3720101e53cSLaxman Dewangan 3730101e53cSLaxman Dewangan This driver can also be built as a module. If so, the module 3740101e53cSLaxman Dewangan will be called rtc-palma. 3750101e53cSLaxman Dewangan 37618cb6368SRenaud Cerratoconfig RTC_DRV_PCF2127 37718cb6368SRenaud Cerrato tristate "NXP PCF2127" 37818cb6368SRenaud Cerrato help 37918cb6368SRenaud Cerrato If you say yes here you get support for the NXP PCF2127/29 RTC 38018cb6368SRenaud Cerrato chips. 38118cb6368SRenaud Cerrato 38218cb6368SRenaud Cerrato This driver can also be built as a module. If so, the module 38318cb6368SRenaud Cerrato will be called rtc-pcf2127. 38418cb6368SRenaud Cerrato 385f803f0d0SThierry Redingconfig RTC_DRV_PCF8523 386f803f0d0SThierry Reding tristate "NXP PCF8523" 387f803f0d0SThierry Reding help 388f803f0d0SThierry Reding If you say yes here you get support for the NXP PCF8523 RTC 389f803f0d0SThierry Reding chips. 390f803f0d0SThierry Reding 391f803f0d0SThierry Reding This driver can also be built as a module. If so, the module 392f803f0d0SThierry Reding will be called rtc-pcf8523. 393f803f0d0SThierry Reding 39409a21e56SAlessandro Zummoconfig RTC_DRV_PCF8563 39509a21e56SAlessandro Zummo tristate "Philips PCF8563/Epson RTC8564" 39609a21e56SAlessandro Zummo help 39709a21e56SAlessandro Zummo If you say yes here you get support for the 39809a21e56SAlessandro Zummo Philips PCF8563 RTC chip. The Epson RTC8564 39909a21e56SAlessandro Zummo should work as well. 40009a21e56SAlessandro Zummo 40109a21e56SAlessandro Zummo This driver can also be built as a module. If so, the module 40209a21e56SAlessandro Zummo will be called rtc-pcf8563. 40309a21e56SAlessandro Zummo 404796b7abbSSøren Andersenconfig RTC_DRV_PCF85063 405796b7abbSSøren Andersen tristate "nxp PCF85063" 406796b7abbSSøren Andersen help 407796b7abbSSøren Andersen If you say yes here you get support for the PCF85063 RTC chip 408796b7abbSSøren Andersen 409796b7abbSSøren Andersen This driver can also be built as a module. If so, the module 410796b7abbSSøren Andersen will be called rtc-pcf85063. 411796b7abbSSøren Andersen 41209a21e56SAlessandro Zummoconfig RTC_DRV_PCF8583 41309a21e56SAlessandro Zummo tristate "Philips PCF8583" 41409a21e56SAlessandro Zummo help 41509a21e56SAlessandro Zummo If you say yes here you get support for the Philips PCF8583 41609a21e56SAlessandro Zummo RTC chip found on Acorn RiscPCs. This driver supports the 41709a21e56SAlessandro Zummo platform specific method of retrieving the current year from 41809a21e56SAlessandro Zummo the RTC's SRAM. It will work on other platforms with the same 41909a21e56SAlessandro Zummo chip, but the year will probably have to be tweaked. 42009a21e56SAlessandro Zummo 42109a21e56SAlessandro Zummo This driver can also be built as a module. If so, the module 42209a21e56SAlessandro Zummo will be called rtc-pcf8583. 42309a21e56SAlessandro Zummo 424caaff562SAtsushi Nemotoconfig RTC_DRV_M41T80 4256b1a5235SWolfram Sang tristate "ST M41T62/65/M41T80/81/82/83/84/85/87 and compatible" 426caaff562SAtsushi Nemoto help 427d3a126fcSSteven A. Falco If you say Y here you will get support for the ST M41T60 428d3a126fcSSteven A. Falco and M41T80 RTC chips series. Currently, the following chips are 429f30281f4SDaniel Glockner supported: M41T62, M41T65, M41T80, M41T81, M41T82, M41T83, M41ST84, 4306b1a5235SWolfram Sang M41ST85, M41ST87, and MicroCrystal RV4162. 431caaff562SAtsushi Nemoto 432caaff562SAtsushi Nemoto This driver can also be built as a module. If so, the module 433caaff562SAtsushi Nemoto will be called rtc-m41t80. 434caaff562SAtsushi Nemoto 435617780d2SAtsushi Nemotoconfig RTC_DRV_M41T80_WDT 436d3a126fcSSteven A. Falco bool "ST M41T65/M41T80 series RTC watchdog timer" 437617780d2SAtsushi Nemoto depends on RTC_DRV_M41T80 438617780d2SAtsushi Nemoto help 439617780d2SAtsushi Nemoto If you say Y here you will get support for the 440d3a126fcSSteven A. Falco watchdog timer in the ST M41T60 and M41T80 RTC chips series. 441617780d2SAtsushi Nemoto 4421ce7c83fSPiotr Ziecikconfig RTC_DRV_BQ32K 4431ce7c83fSPiotr Ziecik tristate "TI BQ32000" 4441ce7c83fSPiotr Ziecik help 4451ce7c83fSPiotr Ziecik If you say Y here you will get support for the TI 4461ce7c83fSPiotr Ziecik BQ32000 I2C RTC chip. 4471ce7c83fSPiotr Ziecik 4481ce7c83fSPiotr Ziecik This driver can also be built as a module. If so, the module 4491ce7c83fSPiotr Ziecik will be called rtc-bq32k. 4501ce7c83fSPiotr Ziecik 451afd8d0f9SDavid Brownellconfig RTC_DRV_DM355EVM 452afd8d0f9SDavid Brownell tristate "TI DaVinci DM355 EVM RTC" 453afd8d0f9SDavid Brownell depends on MFD_DM355EVM_MSP 454afd8d0f9SDavid Brownell help 455afd8d0f9SDavid Brownell Supports the RTC firmware in the MSP430 on the DM355 EVM. 456afd8d0f9SDavid Brownell 4570c4a59feSTony Lindgrenconfig RTC_DRV_TWL92330 4580c4a59feSTony Lindgren boolean "TI TWL92330/Menelaus" 459bb35fb20SJan Engelhardt depends on MENELAUS 4600c4a59feSTony Lindgren help 4610c4a59feSTony Lindgren If you say yes here you get support for the RTC on the 46201dd2fbfSMatt LaPlante TWL92330 "Menelaus" power management chip, used with OMAP2 4630c4a59feSTony Lindgren platforms. The support is integrated with the rest of 4640c4a59feSTony Lindgren the Menelaus driver; it's not separate module. 4650c4a59feSTony Lindgren 466f96411abSDavid Brownellconfig RTC_DRV_TWL4030 467a6b49ffdSBalaji T K tristate "TI TWL4030/TWL5030/TWL6030/TPS659x0" 4686b8029faSVenu Byravarasu depends on TWL4030_CORE 469f96411abSDavid Brownell help 470f96411abSDavid Brownell If you say yes here you get support for the RTC on the 471a6b49ffdSBalaji T K TWL4030/TWL5030/TWL6030 family chips, used mostly with OMAP3 platforms. 472f96411abSDavid Brownell 473f96411abSDavid Brownell This driver can also be built as a module. If so, the module 474a6b49ffdSBalaji T K will be called rtc-twl. 475f96411abSDavid Brownell 476dc59ed38SLaxman Dewanganconfig RTC_DRV_TPS6586X 477dc59ed38SLaxman Dewangan tristate "TI TPS6586X RTC driver" 478dc59ed38SLaxman Dewangan depends on MFD_TPS6586X 479dc59ed38SLaxman Dewangan help 480a895d57dSMasanari Iida TI Power Management IC TPS6586X supports RTC functionality 481dc59ed38SLaxman Dewangan along with alarm. This driver supports the RTC driver for 482dc59ed38SLaxman Dewangan the TPS6586X RTC module. 483dc59ed38SLaxman Dewangan 4840e783980SVenu Byravarasuconfig RTC_DRV_TPS65910 4850e783980SVenu Byravarasu tristate "TI TPS65910 RTC driver" 4860e783980SVenu Byravarasu depends on RTC_CLASS && MFD_TPS65910 4870e783980SVenu Byravarasu help 4880e783980SVenu Byravarasu If you say yes here you get support for the RTC on the 4890e783980SVenu Byravarasu TPS65910 chips. 4900e783980SVenu Byravarasu 4910e783980SVenu Byravarasu This driver can also be built as a module. If so, the module 4920e783980SVenu Byravarasu will be called rtc-tps65910. 4930e783980SVenu Byravarasu 49436d61824SLaxman Dewanganconfig RTC_DRV_TPS80031 49536d61824SLaxman Dewangan tristate "TI TPS80031/TPS80032 RTC driver" 49636d61824SLaxman Dewangan depends on MFD_TPS80031 49736d61824SLaxman Dewangan help 498a895d57dSMasanari Iida TI Power Management IC TPS80031 supports RTC functionality 49936d61824SLaxman Dewangan along with alarm. This driver supports the RTC driver for 50036d61824SLaxman Dewangan the TPS80031 RTC module. 50136d61824SLaxman Dewangan 50290829c08SVenu Byravarasuconfig RTC_DRV_RC5T583 50390829c08SVenu Byravarasu tristate "RICOH 5T583 RTC driver" 50490829c08SVenu Byravarasu depends on MFD_RC5T583 50590829c08SVenu Byravarasu help 50690829c08SVenu Byravarasu If you say yes here you get support for the RTC on the 50790829c08SVenu Byravarasu RICOH 5T583 chips. 50890829c08SVenu Byravarasu 50990829c08SVenu Byravarasu This driver can also be built as a module. If so, the module 51090829c08SVenu Byravarasu will be called rtc-rc5t583. 51190829c08SVenu Byravarasu 512c46288b0SByron Bradleyconfig RTC_DRV_S35390A 513c46288b0SByron Bradley tristate "Seiko Instruments S-35390A" 514d479540dSRandy Dunlap select BITREVERSE 515c46288b0SByron Bradley help 516c46288b0SByron Bradley If you say yes here you will get support for the Seiko 517c46288b0SByron Bradley Instruments S-35390A. 518c46288b0SByron Bradley 519c46288b0SByron Bradley This driver can also be built as a module. If so the module 520c46288b0SByron Bradley will be called rtc-s35390a. 521c46288b0SByron Bradley 522c6d8f400SSergey Lapinconfig RTC_DRV_FM3130 523c6d8f400SSergey Lapin tristate "Ramtron FM3130" 524c6d8f400SSergey Lapin help 525c6d8f400SSergey Lapin If you say Y here you will get support for the 526c6d8f400SSergey Lapin Ramtron FM3130 RTC chips. 527c6d8f400SSergey Lapin Ramtron FM3130 is a chip with two separate devices inside, 528c6d8f400SSergey Lapin RTC clock and FRAM. This driver provides only RTC functionality. 529c6d8f400SSergey Lapin 530c6d8f400SSergey Lapin This driver can also be built as a module. If so the module 531c6d8f400SSergey Lapin will be called rtc-fm3130. 532c6d8f400SSergey Lapin 533a7fa9851SMartyn Welchconfig RTC_DRV_RX8581 534a7fa9851SMartyn Welch tristate "Epson RX-8581" 535a7fa9851SMartyn Welch help 536a7fa9851SMartyn Welch If you say yes here you will get support for the Epson RX-8581. 537a7fa9851SMartyn Welch 538a7fa9851SMartyn Welch This driver can also be built as a module. If so the module 539a7fa9851SMartyn Welch will be called rtc-rx8581. 540a7fa9851SMartyn Welch 5413c2b9075SWolfgang Grandeggerconfig RTC_DRV_RX8025 5423c2b9075SWolfgang Grandegger tristate "Epson RX-8025SA/NB" 5433c2b9075SWolfgang Grandegger help 5443c2b9075SWolfgang Grandegger If you say yes here you get support for the Epson 5453c2b9075SWolfgang Grandegger RX-8025SA/NB RTC chips. 5463c2b9075SWolfgang Grandegger 5473c2b9075SWolfgang Grandegger This driver can also be built as a module. If so, the module 5483c2b9075SWolfgang Grandegger will be called rtc-rx8025. 5493c2b9075SWolfgang Grandegger 550ae3551f9SMike Rapoportconfig RTC_DRV_EM3027 551ae3551f9SMike Rapoport tristate "EM Microelectronic EM3027" 552ae3551f9SMike Rapoport help 553ae3551f9SMike Rapoport If you say yes here you get support for the EM 554ae3551f9SMike Rapoport Microelectronic EM3027 RTC chips. 555ae3551f9SMike Rapoport 556ae3551f9SMike Rapoport This driver can also be built as a module. If so, the module 557ae3551f9SMike Rapoport will be called rtc-em3027. 558ae3551f9SMike Rapoport 55952365230SHeiko Schocherconfig RTC_DRV_RV3029C2 56052365230SHeiko Schocher tristate "Micro Crystal RTC" 56152365230SHeiko Schocher help 56252365230SHeiko Schocher If you say yes here you get support for the Micro Crystal 56352365230SHeiko Schocher RV3029-C2 RTC chips. 56452365230SHeiko Schocher 56552365230SHeiko Schocher This driver can also be built as a module. If so, the module 56652365230SHeiko Schocher will be called rtc-rv3029c2. 56752365230SHeiko Schocher 5685bccae6eSSangbeom Kimconfig RTC_DRV_S5M 5690c5deb1eSKrzysztof Kozlowski tristate "Samsung S2M/S5M series" 5705bccae6eSSangbeom Kim depends on MFD_SEC_CORE 5715bccae6eSSangbeom Kim help 5725bccae6eSSangbeom Kim If you say yes here you will get support for the 5730c5deb1eSKrzysztof Kozlowski RTC of Samsung S2MPS14 and S5M PMIC series. 5745bccae6eSSangbeom Kim 5755bccae6eSSangbeom Kim This driver can also be built as a module. If so, the module 5765bccae6eSSangbeom Kim will be called rtc-s5m. 5775bccae6eSSangbeom Kim 578bb35fb20SJan Engelhardtendif # I2C 579bb35fb20SJan Engelhardt 58009a21e56SAlessandro Zummocomment "SPI RTC drivers" 581bb35fb20SJan Engelhardt 582bb35fb20SJan Engelhardtif SPI_MASTER 58309a21e56SAlessandro Zummo 58474d34d4bSVoss, Nikolausconfig RTC_DRV_M41T93 58574d34d4bSVoss, Nikolaus tristate "ST M41T93" 58674d34d4bSVoss, Nikolaus help 58774d34d4bSVoss, Nikolaus If you say yes here you will get support for the 58874d34d4bSVoss, Nikolaus ST M41T93 SPI RTC chip. 58974d34d4bSVoss, Nikolaus 59074d34d4bSVoss, Nikolaus This driver can also be built as a module. If so, the module 59174d34d4bSVoss, Nikolaus will be called rtc-m41t93. 59274d34d4bSVoss, Nikolaus 5938fc2c767SKim B. Heinoconfig RTC_DRV_M41T94 5948fc2c767SKim B. Heino tristate "ST M41T94" 5958fc2c767SKim B. Heino help 5968fc2c767SKim B. Heino If you say yes here you will get support for the 5978fc2c767SKim B. Heino ST M41T94 SPI RTC chip. 5988fc2c767SKim B. Heino 5998fc2c767SKim B. Heino This driver can also be built as a module. If so, the module 6008fc2c767SKim B. Heino will be called rtc-m41t94. 6018fc2c767SKim B. Heino 60253e84b67SDavid Brownellconfig RTC_DRV_DS1305 60353e84b67SDavid Brownell tristate "Dallas/Maxim DS1305/DS1306" 60453e84b67SDavid Brownell help 60553e84b67SDavid Brownell Select this driver to get support for the Dallas/Maxim DS1305 60653e84b67SDavid Brownell and DS1306 real time clock chips. These support a trickle 60753e84b67SDavid Brownell charger, alarms, and NVRAM in addition to the clock. 60853e84b67SDavid Brownell 60953e84b67SDavid Brownell This driver can also be built as a module. If so, the module 61053e84b67SDavid Brownell will be called rtc-ds1305. 61153e84b67SDavid Brownell 6121d6316f5SRaghavendra Ganigaconfig RTC_DRV_DS1343 6130dd449b1SRaghavendra Ganiga select REGMAP_SPI 6141d6316f5SRaghavendra Ganiga tristate "Dallas/Maxim DS1343/DS1344" 6151d6316f5SRaghavendra Ganiga help 6161d6316f5SRaghavendra Ganiga If you say yes here you get support for the 6171d6316f5SRaghavendra Ganiga Dallas/Maxim DS1343 and DS1344 real time clock chips. 6181d6316f5SRaghavendra Ganiga Support for trickle charger, alarm is provided. 6191d6316f5SRaghavendra Ganiga 6201d6316f5SRaghavendra Ganiga This driver can also be built as a module. If so, the module 6211d6316f5SRaghavendra Ganiga will be called rtc-ds1343. 6221d6316f5SRaghavendra Ganiga 623617b26a0SRaghavendra Ganigaconfig RTC_DRV_DS1347 624617b26a0SRaghavendra Ganiga tristate "Dallas/Maxim DS1347" 625617b26a0SRaghavendra Ganiga help 626617b26a0SRaghavendra Ganiga If you say yes here you get support for the 627617b26a0SRaghavendra Ganiga Dallas/Maxim DS1347 chips. 628617b26a0SRaghavendra Ganiga 629617b26a0SRaghavendra Ganiga This driver only supports the RTC feature, and not other chip 630617b26a0SRaghavendra Ganiga features such as alarms. 631617b26a0SRaghavendra Ganiga 632617b26a0SRaghavendra Ganiga This driver can also be built as a module. If so, the module 633617b26a0SRaghavendra Ganiga will be called rtc-ds1347. 634617b26a0SRaghavendra Ganiga 63506de1808SMark Jacksonconfig RTC_DRV_DS1390 63606de1808SMark Jackson tristate "Dallas/Maxim DS1390/93/94" 63706de1808SMark Jackson help 6387b9b2ef1SAlessandro Zummo If you say yes here you get support for the 6397b9b2ef1SAlessandro Zummo Dallas/Maxim DS1390/93/94 chips. 64006de1808SMark Jackson 64106de1808SMark Jackson This driver only supports the RTC feature, and not other chip 64206de1808SMark Jackson features such as alarms and trickle charging. 64306de1808SMark Jackson 64406de1808SMark Jackson This driver can also be built as a module. If so, the module 64506de1808SMark Jackson will be called rtc-ds1390. 64606de1808SMark Jackson 64709b6bdb3SAlessandro Zummoconfig RTC_DRV_MAX6902 64809b6bdb3SAlessandro Zummo tristate "Maxim MAX6902" 64909b6bdb3SAlessandro Zummo help 65009b6bdb3SAlessandro Zummo If you say yes here you will get support for the 65109b6bdb3SAlessandro Zummo Maxim MAX6902 SPI RTC chip. 65209b6bdb3SAlessandro Zummo 65309b6bdb3SAlessandro Zummo This driver can also be built as a module. If so, the module 65409b6bdb3SAlessandro Zummo will be called rtc-max6902. 65509b6bdb3SAlessandro Zummo 6562805b969SMagnus Dammconfig RTC_DRV_R9701 6572805b969SMagnus Damm tristate "Epson RTC-9701JE" 6582805b969SMagnus Damm help 6592805b969SMagnus Damm If you say yes here you will get support for the 6602805b969SMagnus Damm Epson RTC-9701JE SPI RTC chip. 6612805b969SMagnus Damm 6622805b969SMagnus Damm This driver can also be built as a module. If so, the module 6632805b969SMagnus Damm will be called rtc-r9701. 6642805b969SMagnus Damm 66509a21e56SAlessandro Zummoconfig RTC_DRV_RS5C348 66609a21e56SAlessandro Zummo tristate "Ricoh RS5C348A/B" 66709a21e56SAlessandro Zummo help 66809a21e56SAlessandro Zummo If you say yes here you get support for the 66909a21e56SAlessandro Zummo Ricoh RS5C348A and RS5C348B RTC chips. 67009a21e56SAlessandro Zummo 67109a21e56SAlessandro Zummo This driver can also be built as a module. If so, the module 67209a21e56SAlessandro Zummo will be called rtc-rs5c348. 67309a21e56SAlessandro Zummo 6742f9b75e0SDennis Aberillaconfig RTC_DRV_DS3234 6752f9b75e0SDennis Aberilla tristate "Maxim/Dallas DS3234" 6762f9b75e0SDennis Aberilla help 6772f9b75e0SDennis Aberilla If you say yes here you get support for the 6782f9b75e0SDennis Aberilla Maxim/Dallas DS3234 SPI RTC chip. 6792f9b75e0SDennis Aberilla 6802f9b75e0SDennis Aberilla This driver can also be built as a module. If so, the module 6812f9b75e0SDennis Aberilla will be called rtc-ds3234. 6822f9b75e0SDennis Aberilla 6837f3923a1SChris Vergesconfig RTC_DRV_PCF2123 6847f3923a1SChris Verges tristate "NXP PCF2123" 6857f3923a1SChris Verges help 6867f3923a1SChris Verges If you say yes here you get support for the NXP PCF2123 6877f3923a1SChris Verges RTC chip. 6887f3923a1SChris Verges 6897f3923a1SChris Verges This driver can also be built as a module. If so, the module 6907f3923a1SChris Verges will be called rtc-pcf2123. 6917f3923a1SChris Verges 692cce2da9aSTorben Hohnconfig RTC_DRV_RX4581 693cce2da9aSTorben Hohn tristate "Epson RX-4581" 694cce2da9aSTorben Hohn help 695cce2da9aSTorben Hohn If you say yes here you will get support for the Epson RX-4581. 696cce2da9aSTorben Hohn 697cce2da9aSTorben Hohn This driver can also be built as a module. If so the module 698cce2da9aSTorben Hohn will be called rtc-rx4581. 699cce2da9aSTorben Hohn 7001fcbe42cSJosef Gajdusekconfig RTC_DRV_MCP795 7011fcbe42cSJosef Gajdusek tristate "Microchip MCP795" 7021fcbe42cSJosef Gajdusek help 7031fcbe42cSJosef Gajdusek If you say yes here you will get support for the Microchip MCP795. 7041fcbe42cSJosef Gajdusek 7051fcbe42cSJosef Gajdusek This driver can also be built as a module. If so the module 7061fcbe42cSJosef Gajdusek will be called rtc-mcp795. 7071fcbe42cSJosef Gajdusek 708bb35fb20SJan Engelhardtendif # SPI_MASTER 709bb35fb20SJan Engelhardt 71009a21e56SAlessandro Zummocomment "Platform RTC drivers" 7110c86edc0SAlessandro Zummo 7127be2c7c9SDavid Brownell# this 'CMOS' RTC driver is arch dependent because <asm-generic/rtc.h> 7137be2c7c9SDavid Brownell# requires <asm/mc146818rtc.h> defining CMOS_READ/CMOS_WRITE, and a 7147be2c7c9SDavid Brownell# global rtc_lock ... it's not yet just another platform_device. 7157be2c7c9SDavid Brownell 7167be2c7c9SDavid Brownellconfig RTC_DRV_CMOS 71709a21e56SAlessandro Zummo tristate "PC-style 'CMOS'" 71841c9dbf4SGeert Uytterhoeven depends on X86 || ARM || M32R || PPC || MIPS || SPARC64 719c7500900SDavid Brownell default y if X86 7207be2c7c9SDavid Brownell help 7217be2c7c9SDavid Brownell Say "yes" here to get direct support for the real time clock 7227be2c7c9SDavid Brownell found in every PC or ACPI-based system, and some other boards. 7237be2c7c9SDavid Brownell Specifically the original MC146818, compatibles like those in 7247be2c7c9SDavid Brownell PC south bridges, the DS12887 or M48T86, some multifunction 7257be2c7c9SDavid Brownell or LPC bus chips, and so on. 7267be2c7c9SDavid Brownell 7277be2c7c9SDavid Brownell Your system will need to define the platform device used by 7287be2c7c9SDavid Brownell this driver, otherwise it won't be accessible. This means 7297be2c7c9SDavid Brownell you can safely enable this driver if you don't know whether 7307be2c7c9SDavid Brownell or not your board has this kind of hardware. 7317be2c7c9SDavid Brownell 7327be2c7c9SDavid Brownell This driver can also be built as a module. If so, the module 7337be2c7c9SDavid Brownell will be called rtc-cmos. 7347be2c7c9SDavid Brownell 73585d0b3a5SRichard Hendersonconfig RTC_DRV_ALPHA 73685d0b3a5SRichard Henderson bool "Alpha PC-style CMOS" 73785d0b3a5SRichard Henderson depends on ALPHA 73885d0b3a5SRichard Henderson default y 73985d0b3a5SRichard Henderson help 74085d0b3a5SRichard Henderson Direct support for the real-time clock found on every Alpha 74185d0b3a5SRichard Henderson system, specifically MC146818 compatibles. If in doubt, say Y. 74285d0b3a5SRichard Henderson 7430146f261SFeng Tangconfig RTC_DRV_VRTC 744933b9463SAlan Cox tristate "Virtual RTC for Intel MID platforms" 745933b9463SAlan Cox depends on X86_INTEL_MID 746933b9463SAlan Cox default y if X86_INTEL_MID 7470146f261SFeng Tang 7480146f261SFeng Tang help 7490146f261SFeng Tang Say "yes" here to get direct support for the real time clock 7500146f261SFeng Tang found on Moorestown platforms. The VRTC is a emulated RTC that 7510146f261SFeng Tang derives its clock source from a real RTC in the PMIC. The MC146818 7520146f261SFeng Tang style programming interface is mostly conserved, but any 7530146f261SFeng Tang updates are done via IPC calls to the system controller FW. 7540146f261SFeng Tang 755537739deSThomas Bogendoerferconfig RTC_DRV_DS1216 756537739deSThomas Bogendoerfer tristate "Dallas DS1216" 757bb35fb20SJan Engelhardt depends on SNI_RM 758537739deSThomas Bogendoerfer help 759537739deSThomas Bogendoerfer If you say yes here you get support for the Dallas DS1216 RTC chips. 760537739deSThomas Bogendoerfer 7615f119f29SThomas Bogendoerferconfig RTC_DRV_DS1286 7625f119f29SThomas Bogendoerfer tristate "Dallas DS1286" 763706b632dSChen Gang depends on HAS_IOMEM 7645f119f29SThomas Bogendoerfer help 7655f119f29SThomas Bogendoerfer If you say yes here you get support for the Dallas DS1286 RTC chips. 7665f119f29SThomas Bogendoerfer 767739d340dSPaul Mundtconfig RTC_DRV_DS1302 768739d340dSPaul Mundt tristate "Dallas DS1302" 769739d340dSPaul Mundt depends on SH_SECUREEDGE5410 770739d340dSPaul Mundt help 771739d340dSPaul Mundt If you say yes here you get support for the Dallas DS1302 RTC chips. 772739d340dSPaul Mundt 7738f26795aSAndrew Sharpconfig RTC_DRV_DS1511 7748f26795aSAndrew Sharp tristate "Dallas DS1511" 775706b632dSChen Gang depends on HAS_IOMEM 7768f26795aSAndrew Sharp help 7778f26795aSAndrew Sharp If you say yes here you get support for the 7788f26795aSAndrew Sharp Dallas DS1511 timekeeping/watchdog chip. 7798f26795aSAndrew Sharp 7808f26795aSAndrew Sharp This driver can also be built as a module. If so, the module 7818f26795aSAndrew Sharp will be called rtc-ds1511. 7828f26795aSAndrew Sharp 7839bf5b4f5SAtsushi Nemotoconfig RTC_DRV_DS1553 78409b6bdb3SAlessandro Zummo tristate "Maxim/Dallas DS1553" 785706b632dSChen Gang depends on HAS_IOMEM 7869bf5b4f5SAtsushi Nemoto help 7879bf5b4f5SAtsushi Nemoto If you say yes here you get support for the 78809b6bdb3SAlessandro Zummo Maxim/Dallas DS1553 timekeeping chip. 7899bf5b4f5SAtsushi Nemoto 7909bf5b4f5SAtsushi Nemoto This driver can also be built as a module. If so, the module 7919bf5b4f5SAtsushi Nemoto will be called rtc-ds1553. 7929bf5b4f5SAtsushi Nemoto 79309b6bdb3SAlessandro Zummoconfig RTC_DRV_DS1742 79409b6bdb3SAlessandro Zummo tristate "Maxim/Dallas DS1742/1743" 795706b632dSChen Gang depends on HAS_IOMEM 79609b6bdb3SAlessandro Zummo help 79709b6bdb3SAlessandro Zummo If you say yes here you get support for the 79809b6bdb3SAlessandro Zummo Maxim/Dallas DS1742/1743 timekeeping chip. 79909b6bdb3SAlessandro Zummo 80009b6bdb3SAlessandro Zummo This driver can also be built as a module. If so, the module 80109b6bdb3SAlessandro Zummo will be called rtc-ds1742. 80209b6bdb3SAlessandro Zummo 803ad0200f7SJean Delvareconfig RTC_DRV_DS2404 804ad0200f7SJean Delvare tristate "Maxim/Dallas DS2404" 805ad0200f7SJean Delvare help 806ad0200f7SJean Delvare If you say yes here you get support for the 807ad0200f7SJean Delvare Dallas DS2404 RTC chip. 808ad0200f7SJean Delvare 809ad0200f7SJean Delvare This driver can also be built as a module. If so, the module 810ad0200f7SJean Delvare will be called rtc-ds2404. 811ad0200f7SJean Delvare 812fef931ffSAshish Jangamconfig RTC_DRV_DA9052 813fef931ffSAshish Jangam tristate "Dialog DA9052/DA9053 RTC" 814fef931ffSAshish Jangam depends on PMIC_DA9052 815fef931ffSAshish Jangam help 816fef931ffSAshish Jangam Say y here to support the RTC driver for Dialog Semiconductor 817fef931ffSAshish Jangam DA9052-BC and DA9053-AA/Bx PMICs. 818fef931ffSAshish Jangam 8196920d996SAshish Jangamconfig RTC_DRV_DA9055 8206920d996SAshish Jangam tristate "Dialog Semiconductor DA9055 RTC" 8216920d996SAshish Jangam depends on MFD_DA9055 8226920d996SAshish Jangam help 8236920d996SAshish Jangam If you say yes here you will get support for the 8246920d996SAshish Jangam RTC of the Dialog DA9055 PMIC. 8256920d996SAshish Jangam 8266920d996SAshish Jangam This driver can also be built as a module. If so, the module 8276920d996SAshish Jangam will be called rtc-da9055 8286920d996SAshish Jangam 829c2a57550SOpensource [Steve Twiss]config RTC_DRV_DA9063 830c2a57550SOpensource [Steve Twiss] tristate "Dialog Semiconductor DA9063 RTC" 831c2a57550SOpensource [Steve Twiss] depends on MFD_DA9063 832c2a57550SOpensource [Steve Twiss] help 833c2a57550SOpensource [Steve Twiss] If you say yes here you will get support for the RTC subsystem 834c2a57550SOpensource [Steve Twiss] of the Dialog Semiconductor DA9063. 835c2a57550SOpensource [Steve Twiss] 836c2a57550SOpensource [Steve Twiss] This driver can also be built as a module. If so, the module 837c2a57550SOpensource [Steve Twiss] will be called "rtc-da9063". 838c2a57550SOpensource [Steve Twiss] 8395e3fd9e5Sdann frazierconfig RTC_DRV_EFI 8405e3fd9e5Sdann frazier tristate "EFI RTC" 8417efe6659SMatt Fleming depends on EFI && !X86 8425e3fd9e5Sdann frazier help 8435e3fd9e5Sdann frazier If you say yes here you will get support for the EFI 8445e3fd9e5Sdann frazier Real Time Clock. 8455e3fd9e5Sdann frazier 8465e3fd9e5Sdann frazier This driver can also be built as a module. If so, the module 8475e3fd9e5Sdann frazier will be called rtc-efi. 8485e3fd9e5Sdann frazier 84902964115SThomas Hommelconfig RTC_DRV_STK17TA8 85002964115SThomas Hommel tristate "Simtek STK17TA8" 851706b632dSChen Gang depends on HAS_IOMEM 85202964115SThomas Hommel help 85302964115SThomas Hommel If you say yes here you get support for the 85402964115SThomas Hommel Simtek STK17TA8 timekeeping chip. 85502964115SThomas Hommel 85602964115SThomas Hommel This driver can also be built as a module. If so, the module 85702964115SThomas Hommel will be called rtc-stk17ta8. 85802964115SThomas Hommel 85909a21e56SAlessandro Zummoconfig RTC_DRV_M48T86 86009a21e56SAlessandro Zummo tristate "ST M48T86/Dallas DS12887" 86109a21e56SAlessandro Zummo help 86209a21e56SAlessandro Zummo If you say Y here you will get support for the 86309a21e56SAlessandro Zummo ST M48T86 and Dallas DS12887 RTC chips. 86409a21e56SAlessandro Zummo 86509a21e56SAlessandro Zummo This driver can also be built as a module. If so, the module 86609a21e56SAlessandro Zummo will be called rtc-m48t86. 86709a21e56SAlessandro Zummo 868d1dbd82eSThomas Bogendoerferconfig RTC_DRV_M48T35 869d1dbd82eSThomas Bogendoerfer tristate "ST M48T35" 870706b632dSChen Gang depends on HAS_IOMEM 871d1dbd82eSThomas Bogendoerfer help 872d1dbd82eSThomas Bogendoerfer If you say Y here you will get support for the 873d1dbd82eSThomas Bogendoerfer ST M48T35 RTC chip. 874d1dbd82eSThomas Bogendoerfer 875d1dbd82eSThomas Bogendoerfer This driver can also be built as a module, if so, the module 876d1dbd82eSThomas Bogendoerfer will be called "rtc-m48t35". 877d1dbd82eSThomas Bogendoerfer 8782e774c7cSMark Zhanconfig RTC_DRV_M48T59 87994fe7424SKrzysztof Helt tristate "ST M48T59/M48T08/M48T02" 880706b632dSChen Gang depends on HAS_IOMEM 8812e774c7cSMark Zhan help 8822e774c7cSMark Zhan If you say Y here you will get support for the 88394fe7424SKrzysztof Helt ST M48T59 RTC chip and compatible ST M48T08 and M48T02. 88494fe7424SKrzysztof Helt 88594fe7424SKrzysztof Helt These chips are usually found in Sun SPARC and UltraSPARC 88694fe7424SKrzysztof Helt workstations. 8872e774c7cSMark Zhan 8882e774c7cSMark Zhan This driver can also be built as a module, if so, the module 8892e774c7cSMark Zhan will be called "rtc-m48t59". 8902e774c7cSMark Zhan 8914f9b9bbaSGeert Uytterhoevenconfig RTC_DRV_MSM6242 8924f9b9bbaSGeert Uytterhoeven tristate "Oki MSM6242" 893706b632dSChen Gang depends on HAS_IOMEM 8944f9b9bbaSGeert Uytterhoeven help 8954f9b9bbaSGeert Uytterhoeven If you say yes here you get support for the Oki MSM6242 8964f9b9bbaSGeert Uytterhoeven timekeeping chip. It is used in some Amiga models (e.g. A2000). 8974f9b9bbaSGeert Uytterhoeven 8984f9b9bbaSGeert Uytterhoeven This driver can also be built as a module. If so, the module 8994f9b9bbaSGeert Uytterhoeven will be called rtc-msm6242. 9004f9b9bbaSGeert Uytterhoeven 901cca4c231SDavid S. Millerconfig RTC_DRV_BQ4802 902cca4c231SDavid S. Miller tristate "TI BQ4802" 903706b632dSChen Gang depends on HAS_IOMEM 904cca4c231SDavid S. Miller help 905cca4c231SDavid S. Miller If you say Y here you will get support for the TI 906cca4c231SDavid S. Miller BQ4802 RTC chip. 907cca4c231SDavid S. Miller 908cca4c231SDavid S. Miller This driver can also be built as a module. If so, the module 909cca4c231SDavid S. Miller will be called rtc-bq4802. 910cca4c231SDavid S. Miller 9114f672ce2SGeert Uytterhoevenconfig RTC_DRV_RP5C01 9124f672ce2SGeert Uytterhoeven tristate "Ricoh RP5C01" 913706b632dSChen Gang depends on HAS_IOMEM 9144f672ce2SGeert Uytterhoeven help 9154f672ce2SGeert Uytterhoeven If you say yes here you get support for the Ricoh RP5C01 9164f672ce2SGeert Uytterhoeven timekeeping chip. It is used in some Amiga models (e.g. A3000 9174f672ce2SGeert Uytterhoeven and A4000). 9184f672ce2SGeert Uytterhoeven 9194f672ce2SGeert Uytterhoeven This driver can also be built as a module. If so, the module 9204f672ce2SGeert Uytterhoeven will be called rtc-rp5c01. 9214f672ce2SGeert Uytterhoeven 92209a21e56SAlessandro Zummoconfig RTC_DRV_V3020 92309a21e56SAlessandro Zummo tristate "EM Microelectronic V3020" 92409a21e56SAlessandro Zummo help 92509a21e56SAlessandro Zummo If you say yes here you will get support for the 92609a21e56SAlessandro Zummo EM Microelectronic v3020 RTC chip. 92709a21e56SAlessandro Zummo 92809a21e56SAlessandro Zummo This driver can also be built as a module. If so, the module 92909a21e56SAlessandro Zummo will be called rtc-v3020. 93009a21e56SAlessandro Zummo 93135c86bf6SMark Brownconfig RTC_DRV_WM831X 93235c86bf6SMark Brown tristate "Wolfson Microelectronics WM831x RTC" 93335c86bf6SMark Brown depends on MFD_WM831X 93435c86bf6SMark Brown help 93535c86bf6SMark Brown If you say yes here you will get support for the RTC subsystem 93635c86bf6SMark Brown of the Wolfson Microelectronics WM831X series PMICs. 93735c86bf6SMark Brown 93835c86bf6SMark Brown This driver can also be built as a module. If so, the module 93935c86bf6SMark Brown will be called "rtc-wm831x". 94035c86bf6SMark Brown 941077eaf5bSMark Brownconfig RTC_DRV_WM8350 942077eaf5bSMark Brown tristate "Wolfson Microelectronics WM8350 RTC" 943077eaf5bSMark Brown depends on MFD_WM8350 944077eaf5bSMark Brown help 945077eaf5bSMark Brown If you say yes here you will get support for the RTC subsystem 946077eaf5bSMark Brown of the Wolfson Microelectronics WM8350. 947077eaf5bSMark Brown 948077eaf5bSMark Brown This driver can also be built as a module. If so, the module 949077eaf5bSMark Brown will be called "rtc-wm8350". 950077eaf5bSMark Brown 9510942a71eSRajeev Kumarconfig RTC_DRV_SPEAR 9520942a71eSRajeev Kumar tristate "SPEAR ST RTC" 9530942a71eSRajeev Kumar depends on PLAT_SPEAR 9540942a71eSRajeev Kumar default y 9550942a71eSRajeev Kumar help 9560942a71eSRajeev Kumar If you say Y here you will get support for the RTC found on 9570942a71eSRajeev Kumar spear 9580942a71eSRajeev Kumar 959eae854b2SBalaji Raoconfig RTC_DRV_PCF50633 960eae854b2SBalaji Rao depends on MFD_PCF50633 961eae854b2SBalaji Rao tristate "NXP PCF50633 RTC" 962eae854b2SBalaji Rao help 963eae854b2SBalaji Rao If you say yes here you get support for the RTC subsystem of the 964eae854b2SBalaji Rao NXP PCF50633 used in embedded systems. 965eae854b2SBalaji Rao 966bd207cfbSLinus Walleijconfig RTC_DRV_AB3100 967bd207cfbSLinus Walleij tristate "ST-Ericsson AB3100 RTC" 968bd207cfbSLinus Walleij depends on AB3100_CORE 969bd207cfbSLinus Walleij default y if AB3100_CORE 970bd207cfbSLinus Walleij help 971bd207cfbSLinus Walleij Select this to enable the ST-Ericsson AB3100 Mixed Signal IC RTC 972bd207cfbSLinus Walleij support. This chip contains a battery- and capacitor-backed RTC. 973bd207cfbSLinus Walleij 9740af62f4dSVirupax Sadashivpetimathconfig RTC_DRV_AB8500 9750af62f4dSVirupax Sadashivpetimath tristate "ST-Ericsson AB8500 RTC" 9760af62f4dSVirupax Sadashivpetimath depends on AB8500_CORE 977651fb480SUlf Hansson select RTC_INTF_DEV 978dc43d4a2SRamesh Chandrasekaran select RTC_INTF_DEV_UIE_EMUL 9790af62f4dSVirupax Sadashivpetimath help 9800af62f4dSVirupax Sadashivpetimath Select this to enable the ST-Ericsson AB8500 power management IC RTC 9810af62f4dSVirupax Sadashivpetimath support. This chip contains a battery- and capacitor-backed RTC. 9820af62f4dSVirupax Sadashivpetimath 983afd49a7eSWan ZongShunconfig RTC_DRV_NUC900 984afd49a7eSWan ZongShun tristate "NUC910/NUC920 RTC driver" 9856b8029faSVenu Byravarasu depends on ARCH_W90X900 986afd49a7eSWan ZongShun help 987afd49a7eSWan ZongShun If you say yes here you get support for the RTC subsystem of the 988afd49a7eSWan ZongShun NUC910/NUC920 used in embedded systems. 989bd207cfbSLinus Walleij 99009a21e56SAlessandro Zummocomment "on-CPU RTC drivers" 99109a21e56SAlessandro Zummo 9928ecf6c54SMiguel Aguilarconfig RTC_DRV_DAVINCI 9938ecf6c54SMiguel Aguilar tristate "TI DaVinci RTC" 9948ecf6c54SMiguel Aguilar depends on ARCH_DAVINCI_DM365 9958ecf6c54SMiguel Aguilar help 9968ecf6c54SMiguel Aguilar If you say yes here you get support for the RTC on the 9978ecf6c54SMiguel Aguilar DaVinci platforms (DM365). 9988ecf6c54SMiguel Aguilar 9998ecf6c54SMiguel Aguilar This driver can also be built as a module. If so, the module 10008ecf6c54SMiguel Aguilar will be called rtc-davinci. 10018ecf6c54SMiguel Aguilar 1002b224b9acSFabio Estevamconfig RTC_DRV_IMXDI 1003b224b9acSFabio Estevam tristate "Freescale IMX DryIce Real Time Clock" 1004ef216ad0SRoland Stigge depends on ARCH_MXC 1005b224b9acSFabio Estevam help 1006b224b9acSFabio Estevam Support for Freescale IMX DryIce RTC 1007b224b9acSFabio Estevam 1008b224b9acSFabio Estevam This driver can also be built as a module, if so, the module 1009b224b9acSFabio Estevam will be called "rtc-imxdi". 1010b224b9acSFabio Estevam 1011db68b189SDavid Brownellconfig RTC_DRV_OMAP 1012db68b189SDavid Brownell tristate "TI OMAP1" 1013427af9a6SAfzal Mohammed depends on ARCH_OMAP15XX || ARCH_OMAP16XX || ARCH_OMAP730 || ARCH_DAVINCI_DA8XX || SOC_AM33XX 1014db68b189SDavid Brownell help 1015427af9a6SAfzal Mohammed Say "yes" here to support the on chip real time clock 1016427af9a6SAfzal Mohammed present on TI OMAP1, AM33xx and DA8xx/OMAP-L13x. 1017427af9a6SAfzal Mohammed 1018427af9a6SAfzal Mohammed This driver can also be built as a module, if so, module 1019427af9a6SAfzal Mohammed will be called rtc-omap. 1020db68b189SDavid Brownell 102116f4efe7SAtul Dahiyaconfig HAVE_S3C_RTC 102216f4efe7SAtul Dahiya bool 102316f4efe7SAtul Dahiya help 102416f4efe7SAtul Dahiya This will include RTC support for Samsung SoCs. If 102516f4efe7SAtul Dahiya you want to include RTC support for any machine, kindly 102616f4efe7SAtul Dahiya select this in the respective mach-XXXX/Kconfig file. 102716f4efe7SAtul Dahiya 10281add6781SBen Dooksconfig RTC_DRV_S3C 10291add6781SBen Dooks tristate "Samsung S3C series SoC RTC" 1030b130d5c2SKukjin Kim depends on ARCH_S3C64XX || HAVE_S3C_RTC 10311add6781SBen Dooks help 10321add6781SBen Dooks RTC (Realtime Clock) driver for the clock inbuilt into the 10331add6781SBen Dooks Samsung S3C24XX series of SoCs. This can provide periodic 10341add6781SBen Dooks interrupt rates from 1Hz to 64Hz for user programs, and 10351add6781SBen Dooks wakeup from Alarm. 10361add6781SBen Dooks 10371add6781SBen Dooks The driver currently supports the common features on all the 10381add6781SBen Dooks S3C24XX range, such as the S3C2410, S3C2412, S3C2413, S3C2440 10391add6781SBen Dooks and S3C2442. 10401add6781SBen Dooks 10411add6781SBen Dooks This driver can also be build as a module. If so, the module 10421add6781SBen Dooks will be called rtc-s3c. 10431add6781SBen Dooks 1044fd507e2fSAlessandro Zummoconfig RTC_DRV_EP93XX 1045fd507e2fSAlessandro Zummo tristate "Cirrus Logic EP93XX" 1046bb35fb20SJan Engelhardt depends on ARCH_EP93XX 1047fd507e2fSAlessandro Zummo help 1048fd507e2fSAlessandro Zummo If you say yes here you get support for the 1049fd507e2fSAlessandro Zummo RTC embedded in the Cirrus Logic EP93XX processors. 1050fd507e2fSAlessandro Zummo 1051fd507e2fSAlessandro Zummo This driver can also be built as a module. If so, the module 1052fd507e2fSAlessandro Zummo will be called rtc-ep93xx. 1053fd507e2fSAlessandro Zummo 1054e842f1c8SRichard Purdieconfig RTC_DRV_SA1100 10553888c090SHaojian Zhuang tristate "SA11x0/PXA2xx/PXA910" 10563888c090SHaojian Zhuang depends on ARCH_SA1100 || ARCH_PXA || ARCH_MMP 1057e842f1c8SRichard Purdie help 1058e842f1c8SRichard Purdie If you say Y here you will get access to the real time clock 1059e842f1c8SRichard Purdie built into your SA11x0 or PXA2xx CPU. 1060e842f1c8SRichard Purdie 1061e842f1c8SRichard Purdie To compile this driver as a module, choose M here: the 1062e842f1c8SRichard Purdie module will be called rtc-sa1100. 1063fd507e2fSAlessandro Zummo 1064317a6104SPaul Mundtconfig RTC_DRV_SH 1065317a6104SPaul Mundt tristate "SuperH On-Chip RTC" 10666b8029faSVenu Byravarasu depends on SUPERH && HAVE_CLK 1067317a6104SPaul Mundt help 1068317a6104SPaul Mundt Say Y here to enable support for the on-chip RTC found in 1069317a6104SPaul Mundt most SuperH processors. 1070317a6104SPaul Mundt 1071317a6104SPaul Mundt To compile this driver as a module, choose M here: the 1072317a6104SPaul Mundt module will be called rtc-sh. 1073317a6104SPaul Mundt 10748417eb7aSYoichi Yuasaconfig RTC_DRV_VR41XX 10753e16f6afSAlessandro Zummo tristate "NEC VR41XX" 1076bb35fb20SJan Engelhardt depends on CPU_VR41XX 10773e16f6afSAlessandro Zummo help 10783e16f6afSAlessandro Zummo If you say Y here you will get access to the real time clock 10793e16f6afSAlessandro Zummo built into your NEC VR41XX CPU. 10803e16f6afSAlessandro Zummo 10813e16f6afSAlessandro Zummo To compile this driver as a module, choose M here: the 10823e16f6afSAlessandro Zummo module will be called rtc-vr41xx. 10838417eb7aSYoichi Yuasa 1084a190901cSRussell Kingconfig RTC_DRV_PL030 1085a190901cSRussell King tristate "ARM AMBA PL030 RTC" 1086a190901cSRussell King depends on ARM_AMBA 1087a190901cSRussell King help 1088a190901cSRussell King If you say Y here you will get access to ARM AMBA 1089a190901cSRussell King PrimeCell PL030 RTC found on certain ARM SOCs. 1090a190901cSRussell King 1091a190901cSRussell King To compile this driver as a module, choose M here: the 1092a190901cSRussell King module will be called rtc-pl030. 1093a190901cSRussell King 10948ae6e163SDeepak Saxenaconfig RTC_DRV_PL031 10958ae6e163SDeepak Saxena tristate "ARM AMBA PL031 RTC" 1096bb35fb20SJan Engelhardt depends on ARM_AMBA 10978ae6e163SDeepak Saxena help 10988ae6e163SDeepak Saxena If you say Y here you will get access to ARM AMBA 109909a21e56SAlessandro Zummo PrimeCell PL031 RTC found on certain ARM SOCs. 11008ae6e163SDeepak Saxena 11018ae6e163SDeepak Saxena To compile this driver as a module, choose M here: the 11028ae6e163SDeepak Saxena module will be called rtc-pl031. 11038ae6e163SDeepak Saxena 1104fa04e78bSHans-Christian Egtvedtconfig RTC_DRV_AT32AP700X 1105fa04e78bSHans-Christian Egtvedt tristate "AT32AP700X series RTC" 1106bb35fb20SJan Engelhardt depends on PLATFORM_AT32AP 1107fa04e78bSHans-Christian Egtvedt help 1108fa04e78bSHans-Christian Egtvedt Driver for the internal RTC (Realtime Clock) on Atmel AVR32 1109fa04e78bSHans-Christian Egtvedt AT32AP700x family processors. 1110fa04e78bSHans-Christian Egtvedt 11117fc39f6dSAndrew Victorconfig RTC_DRV_AT91RM9200 111224cecc1bSNicolas Ferre tristate "AT91RM9200 or some AT91SAM9 RTC" 1113938f970eSNicolas Ferre depends on ARCH_AT91 1114788b1fc6SAndrew Victor help 11154cdf854fSDavid Brownell Driver for the internal RTC (Realtime Clock) module found on 111624cecc1bSNicolas Ferre Atmel AT91RM9200's and some AT91SAM9 chips. On AT91SAM9 chips 11174cdf854fSDavid Brownell this is powered by the backup power supply. 11184cdf854fSDavid Brownell 11194cdf854fSDavid Brownellconfig RTC_DRV_AT91SAM9 11203969eb48SBoris BREZILLON tristate "AT91SAM9 RTT as RTC" 1121ee72f18bSNicolas Ferre depends on ARCH_AT91 112243e112bbSBoris BREZILLON select MFD_SYSCON 11234cdf854fSDavid Brownell help 11243969eb48SBoris BREZILLON Some AT91SAM9 SoCs provide an RTT (Real Time Timer) block which 11253969eb48SBoris BREZILLON can be used as an RTC thanks to the backup power supply (e.g. a 11263969eb48SBoris BREZILLON small coin cell battery) which keeps this block and the GPBR 11273969eb48SBoris BREZILLON (General Purpose Backup Registers) block powered when the device 11283969eb48SBoris BREZILLON is shutdown. 11293969eb48SBoris BREZILLON Some AT91SAM9 SoCs provide a real RTC block, on those ones you'd 11303969eb48SBoris BREZILLON probably want to use the real RTC block instead of the "RTT as an 11313969eb48SBoris BREZILLON RTC" driver. 11324cdf854fSDavid Brownell 11334cdf854fSDavid Brownellconfig RTC_DRV_AT91SAM9_RTT 11344cdf854fSDavid Brownell int 11354cdf854fSDavid Brownell range 0 1 11364cdf854fSDavid Brownell default 0 11374cdf854fSDavid Brownell depends on RTC_DRV_AT91SAM9 11384cdf854fSDavid Brownell help 11393969eb48SBoris BREZILLON This option is only relevant for legacy board support and 11403969eb48SBoris BREZILLON won't be used when booting a DT board. 11413969eb48SBoris BREZILLON 11424cdf854fSDavid Brownell More than one RTT module is available. You can choose which 11434cdf854fSDavid Brownell one will be used as an RTC. The default of zero is normally 11444cdf854fSDavid Brownell OK to use, though some systems use that for non-RTC purposes. 11454cdf854fSDavid Brownell 11464cdf854fSDavid Brownellconfig RTC_DRV_AT91SAM9_GPBR 11474cdf854fSDavid Brownell int 11489373090dSNicolas Ferre range 0 3 11494cdf854fSDavid Brownell default 0 11504cdf854fSDavid Brownell prompt "Backup Register Number" 11514cdf854fSDavid Brownell depends on RTC_DRV_AT91SAM9 11524cdf854fSDavid Brownell help 11533969eb48SBoris BREZILLON This option is only relevant for legacy board support and 11543969eb48SBoris BREZILLON won't be used when booting a DT board. 11553969eb48SBoris BREZILLON 11564cdf854fSDavid Brownell The RTC driver needs to use one of the General Purpose Backup 11574cdf854fSDavid Brownell Registers (GPBRs) as well as the RTT. You can choose which one 11584cdf854fSDavid Brownell will be used. The default of zero is normally OK to use, but 11594cdf854fSDavid Brownell on some systems other software needs to use that register. 1160788b1fc6SAndrew Victor 116145fd8a0cSManuel Laussconfig RTC_DRV_AU1XXX 116245fd8a0cSManuel Lauss tristate "Au1xxx Counter0 RTC support" 116342a4f17dSManuel Lauss depends on MIPS_ALCHEMY 116445fd8a0cSManuel Lauss help 116545fd8a0cSManuel Lauss This is a driver for the Au1xxx on-chip Counter0 (Time-Of-Year 116645fd8a0cSManuel Lauss counter) to be used as a RTC. 116745fd8a0cSManuel Lauss 116845fd8a0cSManuel Lauss This driver can also be built as a module. If so, the module 116945fd8a0cSManuel Lauss will be called rtc-au1xxx. 117045fd8a0cSManuel Lauss 11718cc75c9aSWu, Bryanconfig RTC_DRV_BFIN 11728cc75c9aSWu, Bryan tristate "Blackfin On-Chip RTC" 11737f604599SGraf Yang depends on BLACKFIN && !BF561 11748cc75c9aSWu, Bryan help 11758cc75c9aSWu, Bryan If you say yes here you will get support for the 11768cc75c9aSWu, Bryan Blackfin On-Chip Real Time Clock. 11778cc75c9aSWu, Bryan 11788cc75c9aSWu, Bryan This driver can also be built as a module. If so, the module 11798cc75c9aSWu, Bryan will be called rtc-bfin. 11808cc75c9aSWu, Bryan 1181e9f2bd81SNobuhiro Iwamatsuconfig RTC_DRV_RS5C313 1182e9f2bd81SNobuhiro Iwamatsu tristate "Ricoh RS5C313" 1183bb35fb20SJan Engelhardt depends on SH_LANDISK 1184e9f2bd81SNobuhiro Iwamatsu help 1185e9f2bd81SNobuhiro Iwamatsu If you say yes here you get support for the Ricoh RS5C313 RTC chips. 1186e9f2bd81SNobuhiro Iwamatsu 11873afe6d04SGeert Uytterhoevenconfig RTC_DRV_GENERIC 11883afe6d04SGeert Uytterhoeven tristate "Generic RTC support" 11893afe6d04SGeert Uytterhoeven # Please consider writing a new RTC driver instead of using the generic 11903afe6d04SGeert Uytterhoeven # RTC abstraction 119147c8a08bSPaul Mundt depends on PARISC || M68K || PPC || SUPERH32 11929eb16864SKyle McMartin help 11933afe6d04SGeert Uytterhoeven Say Y or M here to enable RTC support on systems using the generic 11943afe6d04SGeert Uytterhoeven RTC abstraction. If you do not know what you are doing, you should 11959eb16864SKyle McMartin just say Y. 11969eb16864SKyle McMartin 1197dc944368SRobert Jarzmikconfig RTC_DRV_PXA 1198dc944368SRobert Jarzmik tristate "PXA27x/PXA3xx" 1199dc944368SRobert Jarzmik depends on ARCH_PXA 1200dc944368SRobert Jarzmik help 1201dc944368SRobert Jarzmik If you say Y here you will get access to the real time clock 1202dc944368SRobert Jarzmik built into your PXA27x or PXA3xx CPU. 1203dc944368SRobert Jarzmik 1204dc944368SRobert Jarzmik This RTC driver uses PXA RTC registers available since pxa27x 1205dc944368SRobert Jarzmik series (RDxR, RYxR) instead of legacy RCNR, RTAR. 1206dc944368SRobert Jarzmik 1207f77fbdf9SAlexey Charkovconfig RTC_DRV_VT8500 1208f77fbdf9SAlexey Charkov tristate "VIA/WonderMedia 85xx SoC RTC" 1209f77fbdf9SAlexey Charkov depends on ARCH_VT8500 1210f77fbdf9SAlexey Charkov help 1211f77fbdf9SAlexey Charkov If you say Y here you will get access to the real time clock 1212f77fbdf9SAlexey Charkov built into your VIA VT8500 SoC or its relatives. 1213f77fbdf9SAlexey Charkov 1214dc944368SRobert Jarzmik 12157a138edeSDavid S. Millerconfig RTC_DRV_SUN4V 12167a138edeSDavid S. Miller bool "SUN4V Hypervisor RTC" 12177a138edeSDavid S. Miller depends on SPARC64 12187a138edeSDavid S. Miller help 12197a138edeSDavid S. Miller If you say Y here you will get support for the Hypervisor 12207a138edeSDavid S. Miller based RTC on SUN4V systems. 12217a138edeSDavid S. Miller 12229765d2d9SChen-Yu Tsaiconfig RTC_DRV_SUN6I 12239765d2d9SChen-Yu Tsai tristate "Allwinner A31 RTC" 12249765d2d9SChen-Yu Tsai depends on MACH_SUN6I || MACH_SUN8I 12259765d2d9SChen-Yu Tsai help 12269765d2d9SChen-Yu Tsai If you say Y here you will get support for the RTC found on 12279765d2d9SChen-Yu Tsai Allwinner A31. 12289765d2d9SChen-Yu Tsai 1229594c6fb9SCarlo Caioneconfig RTC_DRV_SUNXI 1230594c6fb9SCarlo Caione tristate "Allwinner sun4i/sun7i RTC" 123164a1925cSChen-Yu Tsai depends on MACH_SUN4I || MACH_SUN7I 1232594c6fb9SCarlo Caione help 1233594c6fb9SCarlo Caione If you say Y here you will get support for the RTC found on 1234594c6fb9SCarlo Caione Allwinner A10/A20. 1235594c6fb9SCarlo Caione 1236de2cf332SDavid S. Millerconfig RTC_DRV_STARFIRE 1237de2cf332SDavid S. Miller bool "Starfire RTC" 1238de2cf332SDavid S. Miller depends on SPARC64 1239de2cf332SDavid S. Miller help 1240de2cf332SDavid S. Miller If you say Y here you will get support for the RTC found on 1241de2cf332SDavid S. Miller Starfire systems. 1242de2cf332SDavid S. Miller 12430e149233SAtsushi Nemotoconfig RTC_DRV_TX4939 12440e149233SAtsushi Nemoto tristate "TX4939 SoC" 12450e149233SAtsushi Nemoto depends on SOC_TX4939 12460e149233SAtsushi Nemoto help 12470e149233SAtsushi Nemoto Driver for the internal RTC (Realtime Clock) module found on 12480e149233SAtsushi Nemoto Toshiba TX4939 SoC. 12490e149233SAtsushi Nemoto 1250defb4514SSaeed Bisharaconfig RTC_DRV_MV 1251defb4514SSaeed Bishara tristate "Marvell SoC RTC" 1252ace2c020SAndrew Lunn depends on ARCH_DOVE || ARCH_MVEBU 1253defb4514SSaeed Bishara help 1254defb4514SSaeed Bishara If you say yes here you will get support for the in-chip RTC 1255defb4514SSaeed Bishara that can be found in some of Marvell's SoC devices, such as 1256defb4514SSaeed Bishara the Kirkwood 88F6281 and 88F6192. 1257defb4514SSaeed Bishara 1258defb4514SSaeed Bishara This driver can also be built as a module. If so, the module 1259defb4514SSaeed Bishara will be called rtc-mv. 1260defb4514SSaeed Bishara 12610b5f037aSGeert Uytterhoevenconfig RTC_DRV_PS3 12620b5f037aSGeert Uytterhoeven tristate "PS3 RTC" 12630b5f037aSGeert Uytterhoeven depends on PPC_PS3 12640b5f037aSGeert Uytterhoeven help 12650b5f037aSGeert Uytterhoeven If you say yes here you will get support for the RTC on PS3. 12660b5f037aSGeert Uytterhoeven 12670b5f037aSGeert Uytterhoeven This driver can also be built as a module. If so, the module 12680b5f037aSGeert Uytterhoeven will be called rtc-ps3. 12690b5f037aSGeert Uytterhoeven 1270aa958f57SLinus Walleijconfig RTC_DRV_COH901331 1271aa958f57SLinus Walleij tristate "ST-Ericsson COH 901 331 RTC" 1272aa958f57SLinus Walleij depends on ARCH_U300 1273aa958f57SLinus Walleij help 1274aa958f57SLinus Walleij If you say Y here you will get access to ST-Ericsson 1275aa958f57SLinus Walleij COH 901 331 RTC clock found in some ST-Ericsson Mobile 1276aa958f57SLinus Walleij Platforms. 1277aa958f57SLinus Walleij 1278aa958f57SLinus Walleij This driver can also be built as a module. If so, the module 1279aa958f57SLinus Walleij will be called "rtc-coh901331". 1280aa958f57SLinus Walleij 1281aa958f57SLinus Walleij 1282df17f631Sdmitry pervushinconfig RTC_DRV_STMP 128346b21218SWolfram Sang tristate "Freescale STMP3xxx/i.MX23/i.MX28 RTC" 128446b21218SWolfram Sang depends on ARCH_MXS 1285df17f631Sdmitry pervushin help 1286df17f631Sdmitry pervushin If you say yes here you will get support for the onboard 128746b21218SWolfram Sang STMP3xxx/i.MX23/i.MX28 RTC. 1288df17f631Sdmitry pervushin 1289df17f631Sdmitry pervushin This driver can also be built as a module. If so, the module 1290df17f631Sdmitry pervushin will be called rtc-stmp3xxx. 1291df17f631Sdmitry pervushin 1292d3c7a3f7SDaniel Ribeiroconfig RTC_DRV_PCAP 1293d3c7a3f7SDaniel Ribeiro tristate "PCAP RTC" 1294d3c7a3f7SDaniel Ribeiro depends on EZX_PCAP 1295d3c7a3f7SDaniel Ribeiro help 1296d3c7a3f7SDaniel Ribeiro If you say Y here you will get support for the RTC found on 1297d3c7a3f7SDaniel Ribeiro the PCAP2 ASIC used on some Motorola phones. 1298d3c7a3f7SDaniel Ribeiro 12991c97872bSUwe Kleine-Königconfig RTC_DRV_MC13XXX 13001c97872bSUwe Kleine-König depends on MFD_MC13XXX 13011c97872bSUwe Kleine-König tristate "Freescale MC13xxx RTC" 130243299f28SUwe Kleine-König help 13031c97872bSUwe Kleine-König This enables support for the RTCs found on Freescale's PMICs 13041c97872bSUwe Kleine-König MC13783 and MC13892. 130543299f28SUwe Kleine-König 130650aae724SAnatolij Gustschinconfig RTC_DRV_MPC5121 130750aae724SAnatolij Gustschin tristate "Freescale MPC5121 built-in RTC" 1308955dbea3SDmitry Eremin-Solenikov depends on PPC_MPC512x || PPC_MPC52xx 130950aae724SAnatolij Gustschin help 131050aae724SAnatolij Gustschin If you say yes here you will get support for the 1311955dbea3SDmitry Eremin-Solenikov built-in RTC on MPC5121 or on MPC5200. 131250aae724SAnatolij Gustschin 131350aae724SAnatolij Gustschin This driver can also be built as a module. If so, the module 131450aae724SAnatolij Gustschin will be called rtc-mpc5121. 131550aae724SAnatolij Gustschin 13163bf0eea8SLars-Peter Clausenconfig RTC_DRV_JZ4740 13173bf0eea8SLars-Peter Clausen tristate "Ingenic JZ4740 SoC" 13183bf0eea8SLars-Peter Clausen depends on MACH_JZ4740 13193bf0eea8SLars-Peter Clausen help 13203bf0eea8SLars-Peter Clausen If you say yes here you get support for the Ingenic JZ4740 SoC RTC 13213bf0eea8SLars-Peter Clausen controller. 13223bf0eea8SLars-Peter Clausen 13233bf0eea8SLars-Peter Clausen This driver can also be buillt as a module. If so, the module 13243bf0eea8SLars-Peter Clausen will be called rtc-jz4740. 13253bf0eea8SLars-Peter Clausen 13269aa449beSKevin Wellsconfig RTC_DRV_LPC32XX 13279aa449beSKevin Wells depends on ARCH_LPC32XX 13289aa449beSKevin Wells tristate "NXP LPC32XX RTC" 13299aa449beSKevin Wells help 13309aa449beSKevin Wells This enables support for the NXP RTC in the LPC32XX 13319aa449beSKevin Wells 13329aa449beSKevin Wells This driver can also be buillt as a module. If so, the module 13339aa449beSKevin Wells will be called rtc-lpc32xx. 13349aa449beSKevin Wells 13359a9a54adSAnirudh Ghayalconfig RTC_DRV_PM8XXX 13369a9a54adSAnirudh Ghayal tristate "Qualcomm PMIC8XXX RTC" 1337c8d523a4SStanimir Varbanov depends on MFD_PM8XXX || MFD_SPMI_PMIC 13389a9a54adSAnirudh Ghayal help 13399a9a54adSAnirudh Ghayal If you say yes here you get support for the 13409a9a54adSAnirudh Ghayal Qualcomm PMIC8XXX RTC. 13419a9a54adSAnirudh Ghayal 13429a9a54adSAnirudh Ghayal To compile this driver as a module, choose M here: the 13439a9a54adSAnirudh Ghayal module will be called rtc-pm8xxx. 13449a9a54adSAnirudh Ghayal 1345ff859ba6SAndrew Chewconfig RTC_DRV_TEGRA 1346ff859ba6SAndrew Chew tristate "NVIDIA Tegra Internal RTC driver" 13476b8029faSVenu Byravarasu depends on ARCH_TEGRA 1348ff859ba6SAndrew Chew help 1349ff859ba6SAndrew Chew If you say yes here you get support for the 1350ff859ba6SAndrew Chew Tegra 200 series internal RTC module. 1351ff859ba6SAndrew Chew 1352ff859ba6SAndrew Chew This drive can also be built as a module. If so, the module 1353ff859ba6SAndrew Chew will be called rtc-tegra. 1354ff859ba6SAndrew Chew 1355dd196a2bSChris Metcalfconfig RTC_DRV_TILE 1356dd196a2bSChris Metcalf tristate "Tilera hypervisor RTC support" 1357dd196a2bSChris Metcalf depends on TILE 1358dd196a2bSChris Metcalf help 1359dd196a2bSChris Metcalf Enable support for the Linux driver side of the Tilera 1360dd196a2bSChris Metcalf hypervisor's real-time clock interface. 1361dd196a2bSChris Metcalf 13622809e80bSGuan Xuetaoconfig RTC_DRV_PUV3 13632809e80bSGuan Xuetao tristate "PKUnity v3 RTC support" 13642809e80bSGuan Xuetao depends on ARCH_PUV3 13652809e80bSGuan Xuetao help 13662809e80bSGuan Xuetao This enables support for the RTC in the PKUnity-v3 SoCs. 13672809e80bSGuan Xuetao 13682809e80bSGuan Xuetao This drive can also be built as a module. If so, the module 13692809e80bSGuan Xuetao will be called rtc-puv3. 13702809e80bSGuan Xuetao 1371b4f0b880Szhao zhangconfig RTC_DRV_LOONGSON1 1372b4f0b880Szhao zhang tristate "loongson1 RTC support" 1373b4f0b880Szhao zhang depends on MACH_LOONGSON1 1374b4f0b880Szhao zhang help 1375b4f0b880Szhao zhang This is a driver for the loongson1 on-chip Counter0 (Time-Of-Year 1376b4f0b880Szhao zhang counter) to be used as a RTC. 1377b4f0b880Szhao zhang 1378b4f0b880Szhao zhang This driver can also be built as a module. If so, the module 1379b4f0b880Szhao zhang will be called rtc-ls1x. 1380b4f0b880Szhao zhang 138179811595SFabio Estevamconfig RTC_DRV_MXC 1382b224b9acSFabio Estevam tristate "Freescale MXC Real Time Clock" 1383b224b9acSFabio Estevam depends on ARCH_MXC 1384b224b9acSFabio Estevam help 1385b224b9acSFabio Estevam If you say yes here you get support for the Freescale MXC 1386b224b9acSFabio Estevam RTC module. 1387b224b9acSFabio Estevam 1388b224b9acSFabio Estevam This driver can also be built as a module, if so, the module 1389b224b9acSFabio Estevam will be called "rtc-mxc". 1390b224b9acSFabio Estevam 1391179a502fSShawn Guoconfig RTC_DRV_SNVS 1392179a502fSShawn Guo tristate "Freescale SNVS RTC support" 1393179a502fSShawn Guo depends on HAS_IOMEM 1394179a502fSShawn Guo depends on OF 1395179a502fSShawn Guo help 1396179a502fSShawn Guo If you say yes here you get support for the Freescale SNVS 1397179a502fSShawn Guo Low Power (LP) RTC module. 1398179a502fSShawn Guo 1399179a502fSShawn Guo This driver can also be built as a module, if so, the module 1400179a502fSShawn Guo will be called "rtc-snvs". 1401179a502fSShawn Guo 1402e88b815eSXianglong Duconfig RTC_DRV_SIRFSOC 1403e88b815eSXianglong Du tristate "SiRFSOC RTC" 1404e88b815eSXianglong Du depends on ARCH_SIRF 1405e88b815eSXianglong Du help 1406e88b815eSXianglong Du Say "yes" here to support the real time clock on SiRF SOC chips. 1407e88b815eSXianglong Du This driver can also be built as a module called rtc-sirfsoc. 1408e88b815eSXianglong Du 1409453b4c6dSJonas Jensenconfig RTC_DRV_MOXART 1410453b4c6dSJonas Jensen tristate "MOXA ART RTC" 1411441fb768SJean Delvare depends on ARCH_MOXART || COMPILE_TEST 1412453b4c6dSJonas Jensen help 1413453b4c6dSJonas Jensen If you say yes here you get support for the MOXA ART 1414453b4c6dSJonas Jensen RTC module. 1415453b4c6dSJonas Jensen 1416453b4c6dSJonas Jensen This driver can also be built as a module. If so, the module 1417453b4c6dSJonas Jensen will be called rtc-moxart 1418453b4c6dSJonas Jensen 1419f12d8695SLoc Hoconfig RTC_DRV_XGENE 1420f12d8695SLoc Ho tristate "APM X-Gene RTC" 1421706b632dSChen Gang depends on HAS_IOMEM 1422f12d8695SLoc Ho help 1423f12d8695SLoc Ho If you say yes here you get support for the APM X-Gene SoC real time 1424f12d8695SLoc Ho clock. 1425f12d8695SLoc Ho 1426f12d8695SLoc Ho This driver can also be built as a module, if so, the module 1427f12d8695SLoc Ho will be called "rtc-xgene". 1428f12d8695SLoc Ho 142962e00cb9SAlexander Hollercomment "HID Sensor RTC drivers" 143062e00cb9SAlexander Holler 143162e00cb9SAlexander Hollerconfig RTC_DRV_HID_SENSOR_TIME 143262e00cb9SAlexander Holler tristate "HID Sensor Time" 143362e00cb9SAlexander Holler depends on USB_HID 143462e00cb9SAlexander Holler select IIO 143562e00cb9SAlexander Holler select HID_SENSOR_HUB 143662e00cb9SAlexander Holler select HID_SENSOR_IIO_COMMON 143762e00cb9SAlexander Holler help 143862e00cb9SAlexander Holler Say yes here to build support for the HID Sensors of type Time. 143962e00cb9SAlexander Holler This drivers makes such sensors available as RTCs. 144062e00cb9SAlexander Holler 144162e00cb9SAlexander Holler If this driver is compiled as a module, it will be named 144262e00cb9SAlexander Holler rtc-hid-sensor-time. 144362e00cb9SAlexander Holler 144462e00cb9SAlexander Holler 1445bb35fb20SJan Engelhardtendif # RTC_CLASS 1446