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gerrit.devboardsforandroid.linaro.org / platform / external / u-boot / b8745e7eb4888ec6dd7495aad7948a92d141669a / . / drivers / rtc / Kconfig
blob: 23963271928a221dcca4827eba8eff2b17a645f8 [file] [log] [blame]
Masahiro Yamada0b11dbf2015-07-26 02:46:26 +0900[diff] [blame]1#
2# RTC drivers configuration
3#
4
5menu "Real Time Clock"
6
Simon Glassdbeda5b2015-04-20 12:37:23 -0600[diff] [blame]7config DM_RTC
8 bool "Enable Driver Model for RTC drivers"
9 depends on DM
AKASHI Takahiro05429b62019-11-13 09:44:49 +0900[diff] [blame]10 select LIB_DATE
Simon Glassdbeda5b2015-04-20 12:37:23 -0600[diff] [blame]11 help
12 Enable drver model for real-time-clock drivers. The RTC uclass
13 then provides the rtc_get()/rtc_set() interface, delegating to
14 drivers to perform the actual functions. See rtc.h for a
15 description of the API.
Masahiro Yamada0b11dbf2015-07-26 02:46:26 +0900[diff] [blame]16
Simon Glass380d4f72018-10-01 12:22:15 -0600[diff] [blame]17config SPL_DM_RTC
18 bool "Enable Driver Model for RTC drivers in SPL"
19 depends on SPL_DM
20 help
21 Enable drver model for real-time-clock drivers. The RTC uclass
22 then provides the rtc_get()/rtc_set() interface, delegating to
23 drivers to perform the actual functions. See rtc.h for a
24 description of the API.
25
26config TPL_DM_RTC
27 bool "Enable Driver Model for RTC drivers in TPL"
28 depends on TPL_DM
29 help
30 Enable drver model for real-time-clock drivers. The RTC uclass
31 then provides the rtc_get()/rtc_set() interface, delegating to
32 drivers to perform the actual functions. See rtc.h for a
33 description of the API.
34
Simon Glass747093d2022-04-30 00:56:53 -0600[diff] [blame]35config VPL_DM_RTC
36 bool "Enable Driver Model for RTC drivers in VPL"
37 depends on VPL_DM
38 help
39 Enable drver model for real-time-clock drivers. The RTC uclass
40 then provides the rtc_get()/rtc_set() interface, delegating to
41 drivers to perform the actual functions. See rtc.h for a
42 description of the API.
43
Chuanhua Handb07c442019-07-26 19:24:00 +0800[diff] [blame]44config RTC_ENABLE_32KHZ_OUTPUT
45 bool "Enable RTC 32Khz output"
46 help
47 Some real-time clocks support the output of 32kHz square waves (such as ds3231),
48 the config symbol choose Real Time Clock device 32Khz output feature.
49
Marek Behúnaefbc2c2021-02-26 10:30:19 +0100[diff] [blame]50config RTC_ARMADA38X
51 bool "Enable Armada 38x Marvell SoC RTC"
52 depends on DM_RTC && ARCH_MVEBU
53 help
54 This adds support for the in-chip RTC that can be found in the
55 Armada 38x Marvell's SoC devices.
56
Meng Yi8f3a8422016-11-30 15:47:31 +0800[diff] [blame]57config RTC_PCF2127
58 bool "Enable PCF2127 driver"
59 depends on DM_RTC
60 help
Meng Yi45a01942017-01-09 11:24:51 -0700[diff] [blame]61 The PCF2127 is a CMOS Real Time Clock (RTC) and calendar with an integrated
62 Temperature Compensated Crystal (Xtal) Oscillator (TCXO) and a 32.768 kHz quartz
63 crystal optimized for very high accuracy and very low power consumption. The PCF2127
64 has a selectable I2C-bus or SPI-bus, a backup battery switch-over circuit, a
65 programmable watchdog function, a timestamp function, and many other features.
Meng Yi8f3a8422016-11-30 15:47:31 +0800[diff] [blame]66
Chris Packhamd425d602017-04-29 15:20:29 +1200[diff] [blame]67config RTC_DS1307
68 bool "Enable DS1307 driver"
69 depends on DM_RTC
70 help
71 Support for Dallas Semiconductor (now Maxim) DS1307 and DS1338/9 and
72 compatible Real Time Clock devices.
73
Han Nandor0b326fc2019-11-12 08:39:38 +0000[diff] [blame]74config RTC_DS3232
75 bool "Enable DS3232 driver"
76 depends on DM_RTC
77 depends on DM_I2C
78 help
79 Support for Dallas Semiconductor (now Maxim) DS3232 compatible
80 Real Time Clock devices.
81
Heinrich Schuchardt87e99632020-10-22 23:52:14 +0200[diff] [blame]82config RTC_EMULATION
83 bool "Enable emulated RTC"
84 depends on DM_RTC
85 help
86 On a board without hardware clock this software real time clock can be
Heinrich Schuchardtfb71c3f2020-10-30 03:27:22 +0100[diff] [blame]87 used. The initial time may be provided via the environment variable
88 'rtc_emul_epoch' as a decimal string indicating seconds since
89 1970-01-01. If the environment variable is missing, the build time is
90 used to initialize the RTC. The time can be adjusted manually via the
91 'date' command or the 'sntp' command can be used to update the RTC
92 with the time from a network time server. See CONFIG_CMD_SNTP and
93 CONFIG_BOOTP_NTPSERVER. The RTC time is advanced according to CPU
94 ticks.
Heinrich Schuchardt87e99632020-10-22 23:52:14 +0200[diff] [blame]95
Klaus Goger52280312018-03-19 20:32:05 +0100[diff] [blame]96config RTC_ISL1208
97 bool "Enable ISL1208 driver"
98 depends on DM_RTC
99 help
100 The Renesas (formerly Intersil) ISL1208 is a I2C Real Time Clock (RTC) and
101 calendar with automatic leap year correction, 2-byte battery backed SRAM,
102 automatic power switch-over, alarm function and 15 selectable frequency
103 outputs.
104
105 This driver supports reading and writing the RTC/calendar and detects
106 total power failures.
107
Heiko Schocherdddfde52020-10-16 10:41:46 +0200[diff] [blame]108config RTC_PCF8563
109 tristate "Philips PCF8563"
110 help
111 If you say yes here you get support for the Philips PCF8563 RTC
112 and compatible chips.
113
Heiko Schocher05a07762021-03-10 08:15:00 +0100[diff] [blame]114config RTC_RV3028
115 bool "Enable RV3028 driver"
116 depends on DM_RTC
117 help
118 The MicroCrystal RV3028 is a I2C Real Time Clock (RTC)
119
Philipp Tomsicha3716b52018-11-27 22:53:57 +0100[diff] [blame]120config RTC_RV3029
121 bool "Enable RV3029 driver"
122 depends on DM_RTC
123 help
124 The MicroCrystal RV3029 is a I2C Real Time Clock (RTC) with 8-byte
125 battery-backed SRAM.
126
127 This driver supports reading and writing the RTC/calendar and the
128 battery-baced SRAM section.
129
Michael Wallefb9a1ff2019-05-29 01:29:58 +0200[diff] [blame]130config RTC_RV8803
131 bool "Enable RV8803 driver"
132 depends on DM_RTC
133 help
134 The Micro Crystal RV8803 is a high accuracy, ultra-low power I2C
135 Real Time Clock (RTC) with temperature compensation.
136
137 This driver supports reading and writing the RTC/calendar and
138 detects total power failures.
139
Nandor Han958a2102018-01-10 20:31:27 +0100[diff] [blame]140config RTC_RX8010SJ
141 bool "Enable RX8010SJ driver"
142 depends on DM_RTC
143 help
144 Support for Epson RX8010SJ Real Time Clock devices.
145
Heiko Schochera7e6d0c2019-07-16 05:31:33 +0200[diff] [blame]146config RTC_RX8025
147 bool "Enable RX8025 driver"
Mathew McBride152ef912021-09-17 06:46:01 +0000[diff] [blame]148 depends on DM_RTC
Heiko Schochera7e6d0c2019-07-16 05:31:33 +0200[diff] [blame]149 help
150 Support for Epson RX8025 Real Time Clock devices.
151
Heinrich Schuchardtb19886b2018-06-29 00:34:16 +0200[diff] [blame]152config RTC_PL031
153 bool "Enable ARM AMBA PL031 RTC driver"
154 help
155 The ARM PrimeCell Real Time Clock (PL031) is an optional SoC
156 peripheral based on the Advanced Microcontroller Bus Architecture
157 (AMBA). It is emulated in QEMU virtual ARM machines.
158
Chris Packhamd3671df2018-05-28 23:39:58 +1200[diff] [blame]159config RTC_MV
160 bool "Enable Marvell RTC driver"
161 depends on DM_RTC
162 help
163 Enable Marvell RTC driver. This driver supports the rtc that is present
164 on some Marvell SoCs.
165
Nandor Handa5337a2017-11-08 15:35:14 +0000[diff] [blame]166config RTC_S35392A
167 bool "Enable S35392A driver"
168 select BITREVERSE
169 help
170 Enable s35392a driver which provides rtc get and set function.
171
Simon Glass10761072018-10-01 12:22:14 -0600[diff] [blame]172config RTC_MC146818
173 bool "Enable MC146818 driver"
174 help
175 This is a widely used real-time clock chip originally by Motorola
176 and now available from NXP. It includes a battery-backed real-time
177 clock with a wide array of features and 50 bytes of general-purpose,
178 battery-backed RAM. The driver supports access to the clock and RAM.
179
Tom Rini3c205a62022-03-23 17:19:51 -0400[diff] [blame]180config MCFRTC
181 bool "Use common CF RTC driver"
182 depends on M68K
183
184config SYS_MCFRTC_BASE
185 hex "Base address for RTC in immap.h"
186 depends on MCFRTC
187
Lukasz Majewskid27db672018-11-22 14:54:31 +0100[diff] [blame]188config RTC_M41T62
189 bool "Enable M41T62 driver"
190 help
191 Enable driver for ST's M41T62 compatible RTC devices (like RV-4162).
192 It is a serial (I2C) real-time clock (RTC) with alarm.
193
Patrick Delaunay1f99eaf2019-07-22 11:02:34 +0200[diff] [blame]194config RTC_STM32
195 bool "Enable STM32 RTC driver"
196 depends on DM_RTC
197 help
198 Enable STM32 RTC driver. This driver supports the rtc that is present
199 on some STM32 SoCs.
Ying-Chun Liu (PaulLiu)8d612cc2021-01-15 13:53:02 +0800[diff] [blame]200
201config RTC_ABX80X
202 bool "Enable Abracon ABx80x RTC driver"
203 depends on DM_RTC
204 help
205 If you say yes here you get support for Abracon AB080X and AB180X
206 families of ultra-low-power battery- and capacitor-backed real-time
207 clock chips.
208
Dario Binacchi73c3d8e2021-06-02 22:37:58 +0200[diff] [blame]209config RTC_DAVINCI
210 bool "Enable TI OMAP RTC driver"
211 depends on ARCH_DAVINCI || ARCH_OMAP2PLUS
212 help
213 Say "yes" here to support the on chip real time clock
214 present on TI OMAP1, AM33xx, DA8xx/OMAP-L13x, AM43xx and DRA7xx.
215
Michal Simek1f065e82021-07-29 10:39:08 +0200[diff] [blame]216config RTC_ZYNQMP
217 bool "Enable ZynqMP RTC driver"
218 depends on ARCH_ZYNQMP
219 help
220 Say "yes" here to support the on chip real time clock
221 present on Xilinx ZynqMP SoC.
222
Masahiro Yamada0b11dbf2015-07-26 02:46:26 +0900[diff] [blame]223endmenu