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	select LIB_DATE
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.
16
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
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
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
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
57config RTC_PCF2127
58	bool "Enable PCF2127 driver"
59	depends on DM_RTC
60	help
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.
66
67config RTC_DS1307
68	bool "Enable DS1307 driver"
69	depends on DM_RTC
70	help
71	  Support for Dallas Semiconductor (now Maxim) DS1307 and DS1339 and
72	  compatible Real Time Clock devices.
73
74config RTC_DS1337
75	bool "Enable DS1337 driver"
76	help
77	  Support for Dallas Semiconductor (now Maxim) DS1337/8/9 compatible
78	  Real Time Clock devices.
79
80config RTC_DS1337_NOOSC
81	bool "Enable support for no oscillator output in DS1337 driver"
82	depends on RTC_DS1337
83
84config RTC_DS1338
85	bool "Enable DS1338 driver"
86	help
87	  Support for Dallas Semiconductor (now Maxim) DS1338 and compatible
88	  Real Time Clock devices.
89
90config RTC_DS1374
91	bool "Enable DS1374 driver"
92	depends on !DM_RTC
93	help
94	  Support for Dallas Semiconductor (now Maxim) DS1374 and compatible
95	  Real Time Clock devices.
96
97config RTC_DS3231
98	bool "Enable DS3231 driver"
99	help
100	  Support for Dallas Semiconductor (now Maxim) DS3231 compatible
101	  Real Time Clock devices.
102
103config RTC_DS3232
104	bool "Enable DS3232 driver"
105	depends on DM_RTC
106	depends on DM_I2C
107	help
108	  Support for Dallas Semiconductor (now Maxim) DS3232 compatible
109	  Real Time Clock devices.
110
111config RTC_EMULATION
112	bool "Enable emulated RTC"
113	depends on DM_RTC
114	help
115	  On a board without hardware clock this software real time clock can be
116	  used. The initial time may be provided via the environment variable
117	  'rtc_emul_epoch' as a decimal string indicating seconds since
118	  1970-01-01. If the environment variable is missing, the build time is
119	  used to initialize the RTC. The time can be adjusted manually via the
120	  'date' command or the 'sntp' command can be used to update the RTC
121	  with the time from a network time server. See CONFIG_CMD_SNTP and
122	  CONFIG_BOOTP_NTPSERVER. The RTC time is advanced according to CPU
123	  ticks.
124
125config RTC_ISL1208
126	bool "Enable ISL1208 driver"
127	depends on DM_RTC
128	help
129	  The Renesas (formerly Intersil) ISL1208 is a I2C Real Time Clock (RTC) and
130	  calendar with automatic leap year correction, 2-byte battery backed SRAM,
131	  automatic power switch-over, alarm function and 15 selectable frequency
132	  outputs.
133
134	  This driver supports reading and writing the RTC/calendar and detects
135	  total power failures.
136
137config RTC_MAX313XX
138	bool "Analog Devices MAX313XX RTC driver"
139	depends on DM_RTC
140	depends on DM_I2C
141	help
142	  If you say yes here you will get support for the
143	  Analog Devices MAX313XX series RTC family.
144
145	  Chip features not currently supported:
146	  - Timestamp registers as SRAM
147	  - Temperature sensor
148	  - CLKOUT generation
149
150config RTC_PCF8563
151	tristate "Philips PCF8563"
152	help
153	  If you say yes here you get support for the Philips PCF8563 RTC
154	  and compatible chips.
155
156config RTC_PT7C4338
157	bool "Enable Pericom Technology PT7C4338 RTC driver"
158
159config RTC_RV3028
160	bool "Enable RV3028 driver"
161	depends on DM_RTC
162	help
163	  The MicroCrystal RV3028 is a I2C Real Time Clock (RTC)
164
165config RTC_RV3029
166	bool "Enable RV3029 driver"
167	depends on DM_RTC
168	help
169	  The MicroCrystal RV3029 is a I2C Real Time Clock (RTC) with 8-byte
170	  battery-backed SRAM.
171
172	  This driver supports reading and writing the RTC/calendar and the
173	  battery-baced SRAM section.
174
175config RTC_RV8803
176	bool "Enable RV8803 driver"
177	depends on DM_RTC
178	help
179	  The Micro Crystal RV8803 is a high accuracy, ultra-low power I2C
180	  Real Time Clock (RTC) with temperature compensation.
181
182	  This driver supports reading and writing the RTC/calendar and
183	  detects total power failures.
184
185config RTC_RX8010SJ
186	bool "Enable RX8010SJ driver"
187	depends on DM_RTC
188	help
189	  Support for Epson RX8010SJ Real Time Clock devices.
190
191config RTC_RX8025
192	bool "Enable RX8025 driver"
193	depends on DM_RTC
194	help
195	  Support for Epson RX8025 Real Time Clock devices.
196
197config RTC_PL031
198	bool "Enable ARM AMBA PL031 RTC driver"
199	help
200	  The ARM PrimeCell Real Time Clock (PL031) is an optional SoC
201	  peripheral based on the Advanced Microcontroller Bus Architecture
202	  (AMBA). It is emulated in QEMU virtual ARM machines.
203
204config RTC_MV
205	bool "Enable Marvell RTC driver"
206	depends on DM_RTC
207	help
208	  Enable Marvell RTC driver. This driver supports the rtc that is present
209	  on some Marvell SoCs.
210
211config RTC_S35392A
212	bool "Enable S35392A driver"
213	select BITREVERSE
214	help
215	  Enable s35392a driver which provides rtc get and set function.
216
217config RTC_MC13XXX
218	bool "Enable MC13XXX RTC driver"
219	depends on !DM_RTC
220
221config RTC_MC146818
222	bool "Enable MC146818 driver"
223	help
224	  This is a widely used real-time clock chip originally by Motorola
225	  and now available from NXP. It includes a battery-backed real-time
226	  clock with a wide array of features and 50 bytes of general-purpose,
227	  battery-backed RAM. The driver supports access to the clock and RAM.
228
229config MCFRTC
230	bool "Use common CF RTC driver"
231	depends on M68K
232
233config SYS_MCFRTC_BASE
234	hex "Base address for RTC in immap.h"
235	depends on MCFRTC
236
237config RTC_MXS
238	bool "Enable i.MXS RTC driver"
239	depends on ARCH_MX23 || ARCH_MX28
240
241config RTC_M41T62
242	bool "Enable M41T62 driver"
243	help
244	  Enable driver for ST's M41T62 compatible RTC devices (like RV-4162).
245	  It is a serial (I2C) real-time clock (RTC) with alarm.
246
247config RTC_SANDBOX
248	bool "Enable sandbox RTC driver"
249	depends on SANDBOX && DM_RTC
250	default y
251	help
252	  Enable the sandbox RTC driver. This driver connects to the RTC
253	  emulator and is used to test the RTC uclasses and associated code,
254	  as well as the I2C subsystem.
255
256config SPL_RTC_SANDBOX
257	bool "Enable sandbox RTC driver (SPL)"
258	depends on SANDBOX && SPL_DM_RTC
259	default y
260	help
261	  Enable the sandbox RTC driver. This driver connects to the RTC
262	  emulator and is used to test the RTC uclasses and associated code,
263	  as well as the I2C subsystem.
264
265config RTC_STM32
266	bool "Enable STM32 RTC driver"
267	depends on DM_RTC
268	help
269	  Enable STM32 RTC driver. This driver supports the rtc that is present
270	  on some STM32 SoCs.
271
272config RTC_ABX80X
273	bool "Enable Abracon ABx80x RTC driver"
274	depends on DM_RTC
275	help
276	  If you say yes here you get support for Abracon AB080X and AB180X
277	  families of ultra-low-power  battery- and capacitor-backed real-time
278	  clock chips.
279
280config RTC_DAVINCI
281	bool "Enable TI OMAP RTC driver"
282	depends on ARCH_DAVINCI || ARCH_OMAP2PLUS
283	help
284	  Say "yes" here to support the on chip real time clock
285	  present on TI OMAP1, AM33xx, DA8xx/OMAP-L13x, AM43xx and DRA7xx.
286
287config RTC_ZYNQMP
288	bool "Enable ZynqMP RTC driver"
289	depends on ARCH_ZYNQMP
290	help
291	  Say "yes" here to support the on chip real time clock
292	  present on Xilinx ZynqMP SoC.
293
294config RTC_HT1380
295	bool "Enable Holtek HT1380/HT1381 RTC driver"
296	depends on DM_RTC && DM_GPIO
297	help
298	  Say "yes" here to get support for Holtek HT1380/HT1381
299	  Serial Timekeeper IC which provides seconds, minutes, hours,
300	  day of the week, date, month and year information. It is to be
301	  connected via 3 GPIO pins which work as reset, clock, and data.
302
303endmenu
304