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gerrit.devboardsforandroid.linaro.org / platform / external / u-boot / 3602a56ac637952ea8d1b49ad525a0d70982fd92 / . / drivers / rtc / Kconfig
blob: 8778cc7b264ca4f4785e41d66338bac5421f7274 [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
10 help
11 Enable drver model for real-time-clock drivers. The RTC uclass
12 then provides the rtc_get()/rtc_set() interface, delegating to
13 drivers to perform the actual functions. See rtc.h for a
14 description of the API.
Masahiro Yamada0b11dbf2015-07-26 02:46:26 +0900[diff] [blame]15
Simon Glass380d4f72018-10-01 12:22:15 -0600[diff] [blame]16config SPL_DM_RTC
17 bool "Enable Driver Model for RTC drivers in SPL"
18 depends on SPL_DM
19 help
20 Enable drver model for real-time-clock drivers. The RTC uclass
21 then provides the rtc_get()/rtc_set() interface, delegating to
22 drivers to perform the actual functions. See rtc.h for a
23 description of the API.
24
25config TPL_DM_RTC
26 bool "Enable Driver Model for RTC drivers in TPL"
27 depends on TPL_DM
28 help
29 Enable drver model for real-time-clock drivers. The RTC uclass
30 then provides the rtc_get()/rtc_set() interface, delegating to
31 drivers to perform the actual functions. See rtc.h for a
32 description of the API.
33
Chuanhua Handb07c442019-07-26 19:24:00 +0800[diff] [blame]34config RTC_ENABLE_32KHZ_OUTPUT
35 bool "Enable RTC 32Khz output"
36 help
37 Some real-time clocks support the output of 32kHz square waves (such as ds3231),
38 the config symbol choose Real Time Clock device 32Khz output feature.
39
Meng Yi8f3a8422016-11-30 15:47:31 +0800[diff] [blame]40config RTC_PCF2127
41 bool "Enable PCF2127 driver"
42 depends on DM_RTC
43 help
Meng Yi45a01942017-01-09 11:24:51 -0700[diff] [blame]44 The PCF2127 is a CMOS Real Time Clock (RTC) and calendar with an integrated
45 Temperature Compensated Crystal (Xtal) Oscillator (TCXO) and a 32.768 kHz quartz
46 crystal optimized for very high accuracy and very low power consumption. The PCF2127
47 has a selectable I2C-bus or SPI-bus, a backup battery switch-over circuit, a
48 programmable watchdog function, a timestamp function, and many other features.
Meng Yi8f3a8422016-11-30 15:47:31 +0800[diff] [blame]49
Chris Packhamd425d602017-04-29 15:20:29 +1200[diff] [blame]50config RTC_DS1307
51 bool "Enable DS1307 driver"
52 depends on DM_RTC
53 help
54 Support for Dallas Semiconductor (now Maxim) DS1307 and DS1338/9 and
55 compatible Real Time Clock devices.
56
Klaus Goger52280312018-03-19 20:32:05 +0100[diff] [blame]57config RTC_ISL1208
58 bool "Enable ISL1208 driver"
59 depends on DM_RTC
60 help
61 The Renesas (formerly Intersil) ISL1208 is a I2C Real Time Clock (RTC) and
62 calendar with automatic leap year correction, 2-byte battery backed SRAM,
63 automatic power switch-over, alarm function and 15 selectable frequency
64 outputs.
65
66 This driver supports reading and writing the RTC/calendar and detects
67 total power failures.
68
Philipp Tomsicha3716b52018-11-27 22:53:57 +0100[diff] [blame]69config RTC_RV3029
70 bool "Enable RV3029 driver"
71 depends on DM_RTC
72 help
73 The MicroCrystal RV3029 is a I2C Real Time Clock (RTC) with 8-byte
74 battery-backed SRAM.
75
76 This driver supports reading and writing the RTC/calendar and the
77 battery-baced SRAM section.
78
Michael Wallefb9a1ff2019-05-29 01:29:58 +0200[diff] [blame]79config RTC_RV8803
80 bool "Enable RV8803 driver"
81 depends on DM_RTC
82 help
83 The Micro Crystal RV8803 is a high accuracy, ultra-low power I2C
84 Real Time Clock (RTC) with temperature compensation.
85
86 This driver supports reading and writing the RTC/calendar and
87 detects total power failures.
88
Nandor Han958a2102018-01-10 20:31:27 +0100[diff] [blame]89config RTC_RX8010SJ
90 bool "Enable RX8010SJ driver"
91 depends on DM_RTC
92 help
93 Support for Epson RX8010SJ Real Time Clock devices.
94
Heiko Schochera7e6d0c2019-07-16 05:31:33 +0200[diff] [blame]95config RTC_RX8025
96 bool "Enable RX8025 driver"
97 help
98 Support for Epson RX8025 Real Time Clock devices.
99
Heinrich Schuchardtb19886b2018-06-29 00:34:16 +0200[diff] [blame]100config RTC_PL031
101 bool "Enable ARM AMBA PL031 RTC driver"
102 help
103 The ARM PrimeCell Real Time Clock (PL031) is an optional SoC
104 peripheral based on the Advanced Microcontroller Bus Architecture
105 (AMBA). It is emulated in QEMU virtual ARM machines.
106
Chris Packhamd3671df2018-05-28 23:39:58 +1200[diff] [blame]107config RTC_MV
108 bool "Enable Marvell RTC driver"
109 depends on DM_RTC
110 help
111 Enable Marvell RTC driver. This driver supports the rtc that is present
112 on some Marvell SoCs.
113
Nandor Handa5337a2017-11-08 15:35:14 +0000[diff] [blame]114config RTC_S35392A
115 bool "Enable S35392A driver"
116 select BITREVERSE
117 help
118 Enable s35392a driver which provides rtc get and set function.
119
Simon Glass10761072018-10-01 12:22:14 -0600[diff] [blame]120config RTC_MC146818
121 bool "Enable MC146818 driver"
122 help
123 This is a widely used real-time clock chip originally by Motorola
124 and now available from NXP. It includes a battery-backed real-time
125 clock with a wide array of features and 50 bytes of general-purpose,
126 battery-backed RAM. The driver supports access to the clock and RAM.
127
Lukasz Majewskid27db672018-11-22 14:54:31 +0100[diff] [blame]128config RTC_M41T62
129 bool "Enable M41T62 driver"
130 help
131 Enable driver for ST's M41T62 compatible RTC devices (like RV-4162).
132 It is a serial (I2C) real-time clock (RTC) with alarm.
133
Patrick Delaunay1f99eaf2019-07-22 11:02:34 +0200[diff] [blame]134config RTC_STM32
135 bool "Enable STM32 RTC driver"
136 depends on DM_RTC
137 help
138 Enable STM32 RTC driver. This driver supports the rtc that is present
139 on some STM32 SoCs.
Masahiro Yamada0b11dbf2015-07-26 02:46:26 +0900[diff] [blame]140endmenu