xref: /openbmc/u-boot/drivers/led/Kconfig (revision cd71b1d5) 
1menu "LED Support"
2
3config LED
4	bool "Enable LED support"
5	depends on DM
6	help
7	  Many boards have LEDs which can be used to signal status or alerts.
8	  U-Boot provides a uclass API to implement this feature. LED drivers
9	  can provide access to board-specific LEDs. Use of the device tree
10	  for configuration is encouraged.
11
12config LED_BCM6328
13	bool "LED Support for BCM6328"
14	depends on LED && ARCH_BMIPS
15	help
16	  This option enables support for LEDs connected to the BCM6328
17	  LED HW controller accessed via MMIO registers.
18	  HW blinking is supported and up to 24 LEDs can be controlled.
19	  All LEDs can blink at the same time but the delay is shared, which
20	  means that if one LED is set to blink at 100ms and then a different
21	  LED is set to blink at 200ms, both will blink at 200ms.
22
23config LED_BCM6358
24	bool "LED Support for BCM6358"
25	depends on LED && ARCH_BMIPS
26	help
27	  This option enables support for LEDs connected to the BCM6358
28	  LED HW controller accessed via MMIO registers.
29	  HW has no blinking capabilities and up to 32 LEDs can be controlled.
30
31config LED_BLINK
32	bool "Support LED blinking"
33	depends on LED
34	help
35	  Some drivers can support automatic blinking of LEDs with a given
36	  period, without needing timers or extra code to handle the timing.
37	  This option enables support for this which adds slightly to the
38	  code size.
39
40config SPL_LED
41	bool "Enable LED support in SPL"
42	depends on SPL && SPL_DM
43	help
44	  The LED subsystem adds a small amount of overhead to the image.
45	  If this is acceptable and you have a need to use LEDs in SPL,
46	  enable this option. You will need to enable device tree in SPL
47	  for this to work.
48
49config LED_GPIO
50	bool "LED support for GPIO-connected LEDs"
51	depends on LED && DM_GPIO
52	help
53	  Enable support for LEDs which are connected to GPIO lines. These
54	  GPIOs may be on the SoC or some other device which provides GPIOs.
55	  The GPIO driver must used driver model. LEDs are configured using
56	  the device tree.
57
58config SPL_LED_GPIO
59	bool "LED support for GPIO-connected LEDs in SPL"
60        depends on SPL_LED && DM_GPIO
61	help
62	  This option is an SPL-variant of the LED_GPIO option.
63	  See the help of LED_GPIO for details.
64
65config LED_STATUS
66	bool "Enable status LED API"
67	help
68	  Allows common u-boot commands to use a board's leds to
69	  provide status for activities like booting and downloading files.
70
71if LED_STATUS
72
73# Hidden constants
74
75config LED_STATUS_OFF
76	int
77	default 0
78
79config LED_STATUS_BLINKING
80	int
81	default 1
82
83config LED_STATUS_ON
84	int
85	default 2
86
87# Hidden constants end
88
89config LED_STATUS_GPIO
90	bool "GPIO status LED implementation"
91	help
92	  The status LED can be connected to a GPIO pin. In such cases, the
93	  gpio_led driver can be used as a status LED backend implementation.
94
95config LED_STATUS_BOARD_SPECIFIC
96	bool "Specific board"
97	default y
98	help
99	  LED support is only for a specific board.
100
101comment "LEDs parameters"
102
103config LED_STATUS0
104	bool "Enable status LED 0"
105
106if LED_STATUS0
107
108config LED_STATUS_BIT
109	int "identification"
110	help
111	  CONFIG_LED_STATUS_BIT is passed into the __led_* functions to identify
112	  which LED is being acted on.  As such, the chosen value must be unique
113	  with respect to the other CONFIG_LED_STATUS_BIT's. Mapping the value
114	  to a physical LED is the responsibility of the __led_* function.
115
116config LED_STATUS_STATE
117	int "initial state"
118	range LED_STATUS_OFF LED_STATUS_ON
119	default LED_STATUS_OFF
120	help
121	  Should be set one of the following:
122	  0 - off
123	  1 - blinking
124	  2 - on
125
126config LED_STATUS_FREQ
127	int "blink frequency"
128	range 2 10
129	default 2
130	help
131	  The LED blink period calculated from LED_STATUS_FREQ:
132	  LED_STATUS_PERIOD = CONFIG_SYS_HZ/LED_STATUS_FREQ
133	  Values range: 2 - 10
134
135endif # LED_STATUS0
136
137config LED_STATUS1
138	bool "Enable status LED 1"
139
140if LED_STATUS1
141
142config LED_STATUS_BIT1
143	int "identification"
144	help
145	  CONFIG_LED_STATUS_BIT1 is passed into the __led_* functions to
146	  identify which LED is being acted on.  As such, the chosen value must
147	  be unique with respect to the other CONFIG_LED_STATUS_BIT's. Mapping
148	  the value to a physical LED is the responsibility of the __led_*
149	  function.
150
151config LED_STATUS_STATE1
152	int "initial state"
153	range LED_STATUS_OFF LED_STATUS_ON
154	default LED_STATUS_OFF
155	help
156	  Should be set one of the following:
157	  0 - off
158	  1 - blinking
159	  2 - on
160
161config LED_STATUS_FREQ1
162	int "blink frequency"
163	range 2 10
164	default 2
165	help
166	  The LED blink period calculated from LED_STATUS_FREQ1:
167	  LED_STATUS_PERIOD1 = CONFIG_SYS_HZ/LED_STATUS_FREQ1
168	  Values range: 2 - 10
169
170endif # LED_STATUS1
171
172config LED_STATUS2
173	bool "Enable status LED 2"
174
175if LED_STATUS2
176
177config LED_STATUS_BIT2
178	int "identification"
179	help
180	  CONFIG_LED_STATUS_BIT2 is passed into the __led_* functions to
181	  identify which LED is being acted on.  As such, the chosen value must
182	  be unique with respect to the other CONFIG_LED_STATUS_BIT's. Mapping
183	  the value to a physical LED is the responsibility of the __led_*
184	  function.
185
186config LED_STATUS_STATE2
187	int "initial state"
188	range LED_STATUS_OFF LED_STATUS_ON
189	default LED_STATUS_OFF
190	help
191	  Should be set one of the following:
192	  0 - off
193	  1 - blinking
194	  2 - on
195
196config LED_STATUS_FREQ2
197	int "blink frequency"
198	range 2 10
199	default 2
200	help
201	  The LED blink period calculated from LED_STATUS_FREQ2:
202	  LED_STATUS_PERIOD2 = CONFIG_SYS_HZ/LED_STATUS_FREQ2
203	  Values range: 2 - 10
204
205endif # LED_STATUS2
206
207config LED_STATUS3
208	bool "Enable status LED 3"
209
210if LED_STATUS3
211
212config LED_STATUS_BIT3
213	int "identification"
214	help
215	  CONFIG_LED_STATUS_BIT3 is passed into the __led_* functions to
216	  identify which LED is being acted on.  As such, the chosen value must
217	  be unique with respect to the other CONFIG_LED_STATUS_BIT's. Mapping
218	  the value to a physical LED is the responsibility of the __led_*
219	  function.
220
221config LED_STATUS_STATE3
222	int "initial state"
223	range LED_STATUS_OFF LED_STATUS_ON
224	default LED_STATUS_OFF
225	help
226	  Should be set one of the following:
227	  0 - off
228	  1 - blinking
229	  2 - on
230
231config LED_STATUS_FREQ3
232	int "blink frequency"
233	range 2 10
234	default 2
235	help
236	  The LED blink period calculated from LED_STATUS_FREQ3:
237	  LED_STATUS_PERIOD3 = CONFIG_SYS_HZ/LED_STATUS_FREQ3
238	  Values range: 2 - 10
239
240endif # LED_STATUS3
241
242config LED_STATUS4
243	bool "Enable status LED 4"
244
245if LED_STATUS4
246
247config LED_STATUS_BIT4
248	int "identification"
249	help
250	  CONFIG_LED_STATUS_BIT4 is passed into the __led_* functions to
251	  identify which LED is being acted on.  As such, the chosen value must
252	  be unique with respect to the other CONFIG_LED_STATUS_BIT's. Mapping
253	  the value to a physical LED is the responsibility of the __led_*
254	  function.
255
256config LED_STATUS_STATE4
257	int "initial state"
258	range LED_STATUS_OFF LED_STATUS_ON
259	default LED_STATUS_OFF
260	help
261	  Should be set one of the following:
262	  0 - off
263	  1 - blinking
264	  2 - on
265
266config LED_STATUS_FREQ4
267	int "blink frequency"
268	range 2 10
269	default 2
270	help
271	  The LED blink period calculated from LED_STATUS_FREQ4:
272	  LED_STATUS_PERIOD4 = CONFIG_SYS_HZ/LED_STATUS_FREQ4
273	  Values range: 2 - 10
274
275endif # LED_STATUS4
276
277config LED_STATUS5
278	bool "Enable status LED 5"
279
280if LED_STATUS5
281
282config LED_STATUS_BIT5
283	int "identification"
284	help
285	  CONFIG_LED_STATUS_BIT5 is passed into the __led_* functions to
286	  identify which LED is being acted on.  As such, the chosen value must
287	  be unique with respect to the other CONFIG_LED_STATUS_BIT's. Mapping
288	  the value to a physical LED is the responsibility of the __led_*
289	  function.
290
291config LED_STATUS_STATE5
292	int "initial state"
293	range LED_STATUS_OFF LED_STATUS_ON
294	default LED_STATUS_OFF
295	help
296	  Should be set one of the following:
297	  0 - off
298	  1 - blinking
299	  2 - on
300
301config LED_STATUS_FREQ5
302	int "blink frequency"
303	range 2 10
304	default 2
305	help
306	  The LED blink period calculated from LED_STATUS_FREQ5:
307	  LED_STATUS_PERIOD5 = CONFIG_SYS_HZ/LED_STATUS_FREQ5
308	  Values range: 2 - 10
309
310endif # LED_STATUS5
311
312config LED_STATUS_BOOT_ENABLE
313	bool "Enable BOOT LED"
314	help
315	  Enable to turn an LED on when the board is booting.
316
317if LED_STATUS_BOOT_ENABLE
318
319config LED_STATUS_BOOT
320	int "LED to light when the board is booting"
321	help
322	  Valid enabled LED device number.
323
324endif # LED_STATUS_BOOT_ENABLE
325
326config LED_STATUS_RED_ENABLE
327	bool "Enable red LED"
328	help
329	  Enable red status LED.
330
331if LED_STATUS_RED_ENABLE
332
333config LED_STATUS_RED
334	int "Red LED identification"
335	help
336	  Valid enabled LED device number.
337
338endif # LED_STATUS_RED_ENABLE
339
340config LED_STATUS_YELLOW_ENABLE
341	bool "Enable yellow LED"
342	help
343	  Enable yellow status LED.
344
345if LED_STATUS_YELLOW_ENABLE
346
347config LED_STATUS_YELLOW
348	int "Yellow LED identification"
349	help
350	  Valid enabled LED device number.
351
352endif # LED_STATUS_YELLOW_ENABLE
353
354config LED_STATUS_BLUE_ENABLE
355	bool "Enable blue LED"
356	help
357	  Enable blue status LED.
358
359if LED_STATUS_BLUE_ENABLE
360
361config LED_STATUS_BLUE
362	int "Blue LED identification"
363	help
364	  Valid enabled LED device number.
365
366endif # LED_STATUS_BLUE_ENABLE
367
368config LED_STATUS_GREEN_ENABLE
369	bool "Enable green LED"
370	help
371	  Enable green status LED.
372
373if LED_STATUS_GREEN_ENABLE
374
375config LED_STATUS_GREEN
376	int "Green LED identification"
377	help
378	  Valid enabled LED device number (0-5).
379
380endif # LED_STATUS_GREEN_ENABLE
381
382config LED_STATUS_CMD
383	bool "Enable status LED commands"
384
385endif # LED_STATUS
386
387endmenu
388