xref: /openbmc/u-boot/drivers/rtc/Kconfig (revision 17f2ffea)
1#
2# RTC drivers configuration
3#
4
5menu "Real Time Clock"
6
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.
15
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
34config RTC_PCF2127
35	bool "Enable PCF2127 driver"
36	depends on DM_RTC
37	help
38	  The PCF2127 is a CMOS Real Time Clock (RTC) and calendar with an integrated
39	  Temperature Compensated Crystal (Xtal) Oscillator (TCXO) and a 32.768 kHz quartz
40	  crystal optimized for very high accuracy and very low power consumption. The PCF2127
41	  has a selectable I2C-bus or SPI-bus, a backup battery switch-over circuit, a
42	  programmable watchdog function, a timestamp function, and many other features.
43
44config RTC_DS1307
45	bool "Enable DS1307 driver"
46	depends on DM_RTC
47	help
48	  Support for Dallas Semiconductor (now Maxim) DS1307 and DS1338/9 and
49	  compatible Real Time Clock devices.
50
51config RTC_ISL1208
52	bool "Enable ISL1208 driver"
53	depends on DM_RTC
54	help
55	  The Renesas (formerly Intersil) ISL1208 is a I2C Real Time Clock (RTC) and
56	  calendar with automatic leap year correction, 2-byte battery backed SRAM,
57	  automatic power switch-over, alarm function and 15 selectable frequency
58	  outputs.
59
60	  This driver supports reading and writing the RTC/calendar and detects
61	  total power failures.
62
63config RTC_RX8010SJ
64	bool "Enable RX8010SJ driver"
65	depends on DM_RTC
66	help
67	  Support for Epson RX8010SJ Real Time Clock devices.
68
69config RTC_PL031
70	bool "Enable ARM AMBA PL031 RTC driver"
71	help
72	  The ARM PrimeCell Real Time Clock (PL031) is an optional SoC
73	  peripheral based on the Advanced Microcontroller Bus Architecture
74	  (AMBA). It is emulated in QEMU virtual ARM machines.
75
76config RTC_MV
77	bool "Enable Marvell RTC driver"
78	depends on DM_RTC
79	help
80	  Enable Marvell RTC driver. This driver supports the rtc that is present
81	  on some Marvell SoCs.
82
83config RTC_S35392A
84	bool "Enable S35392A driver"
85	select BITREVERSE
86	help
87	  Enable s35392a driver which provides rtc get and set function.
88
89config RTC_MC146818
90	bool "Enable MC146818 driver"
91	help
92	  This is a widely used real-time clock chip originally by Motorola
93	  and now available from NXP. It includes a battery-backed real-time
94	  clock with a wide array of features and 50 bytes of general-purpose,
95	  battery-backed RAM. The driver supports access to the clock and RAM.
96
97endmenu
98