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gerrit.devboardsforandroid.linaro.org / platform / external / u-boot / 05429b6cf5b3f30f773b8e79fe4cd3688349d7d2 / . / drivers / rtc / Kconfig
blob: 89e71cc7ebef5fd75abd4c4c6360b03ad4997508 [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
Chuanhua Handb07c442019-07-26 19:24:00 +0800[diff] [blame]35config RTC_ENABLE_32KHZ_OUTPUT
36 bool "Enable RTC 32Khz output"
37 help
38 Some real-time clocks support the output of 32kHz square waves (such as ds3231),
39 the config symbol choose Real Time Clock device 32Khz output feature.
40
Meng Yi8f3a8422016-11-30 15:47:31 +0800[diff] [blame]41config RTC_PCF2127
42 bool "Enable PCF2127 driver"
43 depends on DM_RTC
44 help
Meng Yi45a01942017-01-09 11:24:51 -0700[diff] [blame]45 The PCF2127 is a CMOS Real Time Clock (RTC) and calendar with an integrated
46 Temperature Compensated Crystal (Xtal) Oscillator (TCXO) and a 32.768 kHz quartz
47 crystal optimized for very high accuracy and very low power consumption. The PCF2127
48 has a selectable I2C-bus or SPI-bus, a backup battery switch-over circuit, a
49 programmable watchdog function, a timestamp function, and many other features.
Meng Yi8f3a8422016-11-30 15:47:31 +0800[diff] [blame]50
Chris Packhamd425d602017-04-29 15:20:29 +1200[diff] [blame]51config RTC_DS1307
52 bool "Enable DS1307 driver"
53 depends on DM_RTC
54 help
55 Support for Dallas Semiconductor (now Maxim) DS1307 and DS1338/9 and
56 compatible Real Time Clock devices.
57
Klaus Goger52280312018-03-19 20:32:05 +0100[diff] [blame]58config RTC_ISL1208
59 bool "Enable ISL1208 driver"
60 depends on DM_RTC
61 help
62 The Renesas (formerly Intersil) ISL1208 is a I2C Real Time Clock (RTC) and
63 calendar with automatic leap year correction, 2-byte battery backed SRAM,
64 automatic power switch-over, alarm function and 15 selectable frequency
65 outputs.
66
67 This driver supports reading and writing the RTC/calendar and detects
68 total power failures.
69
Philipp Tomsicha3716b52018-11-27 22:53:57 +0100[diff] [blame]70config RTC_RV3029
71 bool "Enable RV3029 driver"
72 depends on DM_RTC
73 help
74 The MicroCrystal RV3029 is a I2C Real Time Clock (RTC) with 8-byte
75 battery-backed SRAM.
76
77 This driver supports reading and writing the RTC/calendar and the
78 battery-baced SRAM section.
79
Michael Wallefb9a1ff2019-05-29 01:29:58 +0200[diff] [blame]80config RTC_RV8803
81 bool "Enable RV8803 driver"
82 depends on DM_RTC
83 help
84 The Micro Crystal RV8803 is a high accuracy, ultra-low power I2C
85 Real Time Clock (RTC) with temperature compensation.
86
87 This driver supports reading and writing the RTC/calendar and
88 detects total power failures.
89
Nandor Han958a2102018-01-10 20:31:27 +0100[diff] [blame]90config RTC_RX8010SJ
91 bool "Enable RX8010SJ driver"
92 depends on DM_RTC
93 help
94 Support for Epson RX8010SJ Real Time Clock devices.
95
Heiko Schochera7e6d0c2019-07-16 05:31:33 +0200[diff] [blame]96config RTC_RX8025
97 bool "Enable RX8025 driver"
98 help
99 Support for Epson RX8025 Real Time Clock devices.
100
Heinrich Schuchardtb19886b2018-06-29 00:34:16 +0200[diff] [blame]101config RTC_PL031
102 bool "Enable ARM AMBA PL031 RTC driver"
103 help
104 The ARM PrimeCell Real Time Clock (PL031) is an optional SoC
105 peripheral based on the Advanced Microcontroller Bus Architecture
106 (AMBA). It is emulated in QEMU virtual ARM machines.
107
Chris Packhamd3671df2018-05-28 23:39:58 +1200[diff] [blame]108config RTC_MV
109 bool "Enable Marvell RTC driver"
110 depends on DM_RTC
111 help
112 Enable Marvell RTC driver. This driver supports the rtc that is present
113 on some Marvell SoCs.
114
Nandor Handa5337a2017-11-08 15:35:14 +0000[diff] [blame]115config RTC_S35392A
116 bool "Enable S35392A driver"
117 select BITREVERSE
118 help
119 Enable s35392a driver which provides rtc get and set function.
120
Simon Glass10761072018-10-01 12:22:14 -0600[diff] [blame]121config RTC_MC146818
122 bool "Enable MC146818 driver"
123 help
124 This is a widely used real-time clock chip originally by Motorola
125 and now available from NXP. It includes a battery-backed real-time
126 clock with a wide array of features and 50 bytes of general-purpose,
127 battery-backed RAM. The driver supports access to the clock and RAM.
128
Lukasz Majewskid27db672018-11-22 14:54:31 +0100[diff] [blame]129config RTC_M41T62
130 bool "Enable M41T62 driver"
131 help
132 Enable driver for ST's M41T62 compatible RTC devices (like RV-4162).
133 It is a serial (I2C) real-time clock (RTC) with alarm.
134
Patrick Delaunay1f99eaf2019-07-22 11:02:34 +0200[diff] [blame]135config RTC_STM32
136 bool "Enable STM32 RTC driver"
137 depends on DM_RTC
138 help
139 Enable STM32 RTC driver. This driver supports the rtc that is present
140 on some STM32 SoCs.
Masahiro Yamada0b11dbf2015-07-26 02:46:26 +0900[diff] [blame]141endmenu