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[openwrt/openwrt.git] / target / linux / brcm2708 / patches-4.4 / 0142-BCM270X_DT-Adjust-overlay-README-formatting.patch
1 From 1bf407348eb9be0b793da4350f2daba91db4ea4f Mon Sep 17 00:00:00 2001
2 From: Phil Elwell <phil@raspberrypi.org>
3 Date: Mon, 8 Feb 2016 09:46:33 +0000
4 Subject: [PATCH 142/304] BCM270X_DT: Adjust overlay README formatting
5
6 ---
7 arch/arm/boot/dts/overlays/README | 414 +++++++++++++++++++-------------------
8 1 file changed, 207 insertions(+), 207 deletions(-)
9
10 --- a/arch/arm/boot/dts/overlays/README
11 +++ b/arch/arm/boot/dts/overlays/README
12 @@ -83,58 +83,58 @@ Name: <The base DTB>
13 Info: Configures the base Raspberry Pi hardware
14 Load: <loaded automatically>
15 Params:
16 - audio Set to "on" to enable the onboard ALSA audio
17 - interface (default "off")
18 + audio Set to "on" to enable the onboard ALSA audio
19 + interface (default "off")
20
21 - i2c_arm Set to "on" to enable the ARM's i2c interface
22 - (default "off")
23 + i2c_arm Set to "on" to enable the ARM's i2c interface
24 + (default "off")
25
26 - i2c_vc Set to "on" to enable the i2c interface
27 - usually reserved for the VideoCore processor
28 - (default "off")
29 + i2c_vc Set to "on" to enable the i2c interface
30 + usually reserved for the VideoCore processor
31 + (default "off")
32
33 - i2c An alias for i2c_arm
34 + i2c An alias for i2c_arm
35
36 - i2c_arm_baudrate Set the baudrate of the ARM's i2c interface
37 - (default "100000")
38 + i2c_arm_baudrate Set the baudrate of the ARM's i2c interface
39 + (default "100000")
40
41 - i2c_vc_baudrate Set the baudrate of the VideoCore i2c interface
42 - (default "100000")
43 + i2c_vc_baudrate Set the baudrate of the VideoCore i2c interface
44 + (default "100000")
45
46 - i2c_baudrate An alias for i2c_arm_baudrate
47 + i2c_baudrate An alias for i2c_arm_baudrate
48
49 - i2s Set to "on" to enable the i2s interface
50 - (default "off")
51 + i2s Set to "on" to enable the i2s interface
52 + (default "off")
53
54 - spi Set to "on" to enable the spi interfaces
55 - (default "off")
56 + spi Set to "on" to enable the spi interfaces
57 + (default "off")
58
59 - random Set to "on" to enable the hardware random
60 - number generator (default "on")
61 + random Set to "on" to enable the hardware random
62 + number generator (default "on")
63
64 - uart0 Set to "off" to disable uart0 (default "on")
65 + uart0 Set to "off" to disable uart0 (default "on")
66
67 - watchdog Set to "on" to enable the hardware watchdog
68 - (default "off")
69 + watchdog Set to "on" to enable the hardware watchdog
70 + (default "off")
71
72 - act_led_trigger Choose which activity the LED tracks.
73 - Use "heartbeat" for a nice load indicator.
74 - (default "mmc")
75 + act_led_trigger Choose which activity the LED tracks.
76 + Use "heartbeat" for a nice load indicator.
77 + (default "mmc")
78
79 - act_led_activelow Set to "on" to invert the sense of the LED
80 - (default "off")
81 + act_led_activelow Set to "on" to invert the sense of the LED
82 + (default "off")
83
84 - act_led_gpio Set which GPIO to use for the activity LED
85 - (in case you want to connect it to an external
86 - device)
87 - (default "16" on a non-Plus board, "47" on a
88 - Plus or Pi 2)
89 + act_led_gpio Set which GPIO to use for the activity LED
90 + (in case you want to connect it to an external
91 + device)
92 + (default "16" on a non-Plus board, "47" on a
93 + Plus or Pi 2)
94
95 pwr_led_trigger
96 pwr_led_activelow
97 pwr_led_gpio
98 - As for act_led_*, but using the PWR LED.
99 - Not available on Model A/B boards.
100 + As for act_led_*, but using the PWR LED.
101 + Not available on Model A/B boards.
102
103 N.B. It is recommended to only enable those interfaces that are needed.
104 Leaving all interfaces enabled can lead to unwanted behaviour (i2c_vc
105 @@ -149,19 +149,19 @@ Params:
106 Name: ads7846
107 Info: ADS7846 Touch controller
108 Load: dtoverlay=ads7846,<param>=<val>
109 -Params: cs SPI bus Chip Select (default 1)
110 - speed SPI bus speed (default 2MHz, max 3.25MHz)
111 - penirq GPIO used for PENIRQ. REQUIRED
112 - penirq_pull Set GPIO pull (default 0=none, 2=pullup)
113 - swapxy Swap x and y axis
114 - xmin Minimum value on the X axis (default 0)
115 - ymin Minimum value on the Y axis (default 0)
116 - xmax Maximum value on the X axis (default 4095)
117 - ymax Maximum value on the Y axis (default 4095)
118 - pmin Minimum reported pressure value (default 0)
119 - pmax Maximum reported pressure value (default 65535)
120 - xohms Touchpanel sensitivity (X-plate resistance)
121 - (default 400)
122 +Params: cs SPI bus Chip Select (default 1)
123 + speed SPI bus speed (default 2MHz, max 3.25MHz)
124 + penirq GPIO used for PENIRQ. REQUIRED
125 + penirq_pull Set GPIO pull (default 0=none, 2=pullup)
126 + swapxy Swap x and y axis
127 + xmin Minimum value on the X axis (default 0)
128 + ymin Minimum value on the Y axis (default 0)
129 + xmax Maximum value on the X axis (default 4095)
130 + ymax Maximum value on the Y axis (default 4095)
131 + pmin Minimum reported pressure value (default 0)
132 + pmax Maximum reported pressure value (default 65535)
133 + xohms Touchpanel sensitivity (X-plate resistance)
134 + (default 400)
135
136 penirq is required and usually xohms (60-100) has to be set as well.
137 Apart from that, pmax (255) and swapxy are also common.
138 @@ -175,12 +175,12 @@ Name: at86rf233
139 Info: Configures the Atmel AT86RF233 802.15.4 low-power WPAN transceiver,
140 connected to spi0.0
141 Load: dtoverlay=at86rf233,<param>=<val>
142 -Params: interrupt GPIO used for INT (default 23)
143 - reset GPIO used for Reset (default 24)
144 - sleep GPIO used for Sleep (default 25)
145 - speed SPI bus speed in Hz (default 6000000)
146 - trim Fine tuning of the internal capacitance
147 - arrays (0=+0pF, 15=+4.5pF, default 15)
148 +Params: interrupt GPIO used for INT (default 23)
149 + reset GPIO used for Reset (default 24)
150 + sleep GPIO used for Sleep (default 25)
151 + speed SPI bus speed in Hz (default 6000000)
152 + trim Fine tuning of the internal capacitance
153 + arrays (0=+0pF, 15=+4.5pF, default 15)
154
155
156 Name: bmp085_i2c-sensor
157 @@ -194,8 +194,8 @@ Name: dht11
158 Info: Overlay for the DHT11/DHT21/DHT22 humidity/temperature sensors
159 Also sometimes found with the part number(s) AM230x.
160 Load: dtoverlay=dht11,<param>=<val>
161 -Params: gpiopin GPIO connected to the sensor's DATA output.
162 - (default 4)
163 +Params: gpiopin GPIO connected to the sensor's DATA output.
164 + (default 4)
165
166
167 Name: dwc-otg
168 @@ -208,15 +208,15 @@ Params: <None>
169 Name: dwc2
170 Info: Selects the dwc2 USB controller driver
171 Load: dtoverlay=dwc2,<param>=<val>
172 -Params: dr_mode Dual role mode: "host", "peripheral" or "otg"
173 +Params: dr_mode Dual role mode: "host", "peripheral" or "otg"
174
175 - g-rx-fifo-size Size of rx fifo size in gadget mode
176 + g-rx-fifo-size Size of rx fifo size in gadget mode
177
178 - g-np-tx-fifo-size Size of non-periodic tx fifo size in gadget
179 - mode
180 + g-np-tx-fifo-size Size of non-periodic tx fifo size in gadget
181 + mode
182
183 - g-tx-fifo-size Size of periodic tx fifo per endpoint
184 - (except ep0) in gadget mode
185 + g-tx-fifo-size Size of periodic tx fifo per endpoint
186 + (except ep0) in gadget mode
187
188
189 [ The ds1307-rtc overlay has been deleted. See i2c-rtc. ]
190 @@ -225,9 +225,9 @@ Params: dr_mode Dual ro
191 Name: enc28j60
192 Info: Overlay for the Microchip ENC28J60 Ethernet Controller (SPI)
193 Load: dtoverlay=enc28j60,<param>=<val>
194 -Params: int_pin GPIO used for INT (default 25)
195 +Params: int_pin GPIO used for INT (default 25)
196
197 - speed SPI bus speed (default 12000000)
198 + speed SPI bus speed (default 12000000)
199
200
201 Name: gpio-ir
202 @@ -237,26 +237,26 @@ Info: Use GPIO pin as rc-core style in
203 not required! The key mapping and other decoding parameters can be
204 configured by "ir-keytable" tool.
205 Load: dtoverlay=gpio-ir,<param>=<val>
206 -Params: gpio_pin Input pin number. Default is 18.
207 +Params: gpio_pin Input pin number. Default is 18.
208
209 - gpio_pull Desired pull-up/down state (off, down, up)
210 - Default is "down".
211 + gpio_pull Desired pull-up/down state (off, down, up)
212 + Default is "down".
213
214 - rc-map-name Default rc keymap (can also be changed by
215 - ir-keytable), defaults to "rc-rc6-mce"
216 + rc-map-name Default rc keymap (can also be changed by
217 + ir-keytable), defaults to "rc-rc6-mce"
218
219
220 Name: gpio-poweroff
221 Info: Drives a GPIO high or low on reboot
222 Load: dtoverlay=gpio-poweroff,<param>=<val>
223 -Params: gpiopin GPIO for signalling (default 26)
224 +Params: gpiopin GPIO for signalling (default 26)
225
226 - active_low Set if the power control device requires a
227 - high->low transition to trigger a power-down.
228 - Note that this will require the support of a
229 - custom dt-blob.bin to prevent a power-down
230 - during the boot process, and that a reboot
231 - will also cause the pin to go low.
232 + active_low Set if the power control device requires a
233 + high->low transition to trigger a power-down.
234 + Note that this will require the support of a
235 + custom dt-blob.bin to prevent a power-down
236 + during the boot process, and that a reboot
237 + will also cause the pin to go low.
238
239
240 Name: hifiberry-amp
241 @@ -300,65 +300,65 @@ Name: hy28a
242 Info: HY28A - 2.8" TFT LCD Display Module by HAOYU Electronics
243 Default values match Texy's display shield
244 Load: dtoverlay=hy28a,<param>=<val>
245 -Params: speed Display SPI bus speed
246 +Params: speed Display SPI bus speed
247
248 - rotate Display rotation {0,90,180,270}
249 + rotate Display rotation {0,90,180,270}
250
251 - fps Delay between frame updates
252 + fps Delay between frame updates
253
254 - debug Debug output level {0-7}
255 + debug Debug output level {0-7}
256
257 - xohms Touchpanel sensitivity (X-plate resistance)
258 + xohms Touchpanel sensitivity (X-plate resistance)
259
260 - resetgpio GPIO used to reset controller
261 + resetgpio GPIO used to reset controller
262
263 - ledgpio GPIO used to control backlight
264 + ledgpio GPIO used to control backlight
265
266
267 Name: hy28b
268 Info: HY28B - 2.8" TFT LCD Display Module by HAOYU Electronics
269 Default values match Texy's display shield
270 Load: dtoverlay=hy28b,<param>=<val>
271 -Params: speed Display SPI bus speed
272 +Params: speed Display SPI bus speed
273
274 - rotate Display rotation {0,90,180,270}
275 + rotate Display rotation {0,90,180,270}
276
277 - fps Delay between frame updates
278 + fps Delay between frame updates
279
280 - debug Debug output level {0-7}
281 + debug Debug output level {0-7}
282
283 - xohms Touchpanel sensitivity (X-plate resistance)
284 + xohms Touchpanel sensitivity (X-plate resistance)
285
286 - resetgpio GPIO used to reset controller
287 + resetgpio GPIO used to reset controller
288
289 - ledgpio GPIO used to control backlight
290 + ledgpio GPIO used to control backlight
291
292
293 Name: i2c-gpio
294 Info: Adds support for software i2c controller on gpio pins
295 Load: dtoverlay=i2c-gpio,<param>=<val>
296 -Params: i2c_gpio_sda GPIO used for I2C data (default "23")
297 +Params: i2c_gpio_sda GPIO used for I2C data (default "23")
298
299 - i2c_gpio_scl GPIO used for I2C clock (default "24")
300 + i2c_gpio_scl GPIO used for I2C clock (default "24")
301
302 - i2c_gpio_delay_us Clock delay in microseconds
303 - (default "2" = ~100kHz)
304 + i2c_gpio_delay_us Clock delay in microseconds
305 + (default "2" = ~100kHz)
306
307
308 Name: i2c-rtc
309 Info: Adds support for a number of I2C Real Time Clock devices
310 Load: dtoverlay=i2c-rtc,<param>=<val>
311 -Params: ds1307 Select the DS1307 device
312 +Params: ds1307 Select the DS1307 device
313
314 - ds3231 Select the DS3231 device
315 + ds3231 Select the DS3231 device
316
317 - mcp7941x Select the MCP7941x device
318 + mcp7941x Select the MCP7941x device
319
320 - pcf2127 Select the PCF2127 device
321 + pcf2127 Select the PCF2127 device
322
323 - pcf8523 Select the PCF8523 device
324 + pcf8523 Select the PCF8523 device
325
326 - pcf8563 Select the PCF8563 device
327 + pcf8563 Select the PCF8563 device
328
329
330 Name: i2s-mmap
331 @@ -396,70 +396,70 @@ Name: lirc-rpi
332 Info: Configures lirc-rpi (Linux Infrared Remote Control for Raspberry Pi)
333 Consult the module documentation for more details.
334 Load: dtoverlay=lirc-rpi,<param>=<val>
335 -Params: gpio_out_pin GPIO for output (default "17")
336 +Params: gpio_out_pin GPIO for output (default "17")
337
338 - gpio_in_pin GPIO for input (default "18")
339 + gpio_in_pin GPIO for input (default "18")
340
341 - gpio_in_pull Pull up/down/off on the input pin
342 - (default "down")
343 + gpio_in_pull Pull up/down/off on the input pin
344 + (default "down")
345
346 - sense Override the IR receive auto-detection logic:
347 - "0" = force active-high
348 - "1" = force active-low
349 - "-1" = use auto-detection
350 - (default "-1")
351 + sense Override the IR receive auto-detection logic:
352 + "0" = force active-high
353 + "1" = force active-low
354 + "-1" = use auto-detection
355 + (default "-1")
356
357 - softcarrier Turn the software carrier "on" or "off"
358 - (default "on")
359 + softcarrier Turn the software carrier "on" or "off"
360 + (default "on")
361
362 - invert "on" = invert the output pin (default "off")
363 + invert "on" = invert the output pin (default "off")
364
365 - debug "on" = enable additional debug messages
366 - (default "off")
367 + debug "on" = enable additional debug messages
368 + (default "off")
369
370
371 Name: mcp2515-can0
372 Info: Configures the MCP2515 CAN controller on spi0.0
373 Load: dtoverlay=mcp2515-can0,<param>=<val>
374 -Params: oscillator Clock frequency for the CAN controller (Hz)
375 +Params: oscillator Clock frequency for the CAN controller (Hz)
376
377 - spimaxfrequency Maximum SPI frequence (Hz)
378 + spimaxfrequency Maximum SPI frequence (Hz)
379
380 - interrupt GPIO for interrupt signal
381 + interrupt GPIO for interrupt signal
382
383
384 Name: mcp2515-can1
385 Info: Configures the MCP2515 CAN controller on spi0.1
386 Load: dtoverlay=mcp2515-can1,<param>=<val>
387 -Params: oscillator Clock frequency for the CAN controller (Hz)
388 +Params: oscillator Clock frequency for the CAN controller (Hz)
389
390 - spimaxfrequency Maximum SPI frequence (Hz)
391 + spimaxfrequency Maximum SPI frequence (Hz)
392
393 - interrupt GPIO for interrupt signal
394 + interrupt GPIO for interrupt signal
395
396
397 Name: mmc
398 Info: Selects the bcm2835-mmc SD/MMC driver, optionally with overclock
399 Load: dtoverlay=mmc,<param>=<val>
400 -Params: overclock_50 Clock (in MHz) to use when the MMC framework
401 - requests 50MHz
402 - force_pio Disable DMA support
403 +Params: overclock_50 Clock (in MHz) to use when the MMC framework
404 + requests 50MHz
405 + force_pio Disable DMA support
406
407
408 Name: mz61581
409 Info: MZ61581 display by Tontec
410 Load: dtoverlay=mz61581,<param>=<val>
411 -Params: speed Display SPI bus speed
412 +Params: speed Display SPI bus speed
413
414 - rotate Display rotation {0,90,180,270}
415 + rotate Display rotation {0,90,180,270}
416
417 - fps Delay between frame updates
418 + fps Delay between frame updates
419
420 - txbuflen Transmit buffer length (default 32768)
421 + txbuflen Transmit buffer length (default 32768)
422
423 - debug Debug output level {0-7}
424 + debug Debug output level {0-7}
425
426 - xohms Touchpanel sensitivity (X-plate resistance)
427 + xohms Touchpanel sensitivity (X-plate resistance)
428
429
430 [ The pcf2127-rtc overlay has been deleted. See i2c-rtc. ]
431 @@ -474,69 +474,69 @@ Params: speed Display
432 Name: piscreen
433 Info: PiScreen display by OzzMaker.com
434 Load: dtoverlay=piscreen,<param>=<val>
435 -Params: speed Display SPI bus speed
436 +Params: speed Display SPI bus speed
437
438 - rotate Display rotation {0,90,180,270}
439 + rotate Display rotation {0,90,180,270}
440
441 - fps Delay between frame updates
442 + fps Delay between frame updates
443
444 - debug Debug output level {0-7}
445 + debug Debug output level {0-7}
446
447 - xohms Touchpanel sensitivity (X-plate resistance)
448 + xohms Touchpanel sensitivity (X-plate resistance)
449
450
451 Name: piscreen2r
452 Info: PiScreen 2 with resistive TP display by OzzMaker.com
453 Load: dtoverlay=piscreen2r,<param>=<val>
454 -Params: speed Display SPI bus speed
455 +Params: speed Display SPI bus speed
456
457 - rotate Display rotation {0,90,180,270}
458 + rotate Display rotation {0,90,180,270}
459
460 - fps Delay between frame updates
461 + fps Delay between frame updates
462
463 - debug Debug output level {0-7}
464 + debug Debug output level {0-7}
465
466 - xohms Touchpanel sensitivity (X-plate resistance)
467 + xohms Touchpanel sensitivity (X-plate resistance)
468
469
470 Name: pitft28-capacitive
471 Info: Adafruit PiTFT 2.8" capacitive touch screen
472 Load: dtoverlay=pitft28-capacitive,<param>=<val>
473 -Params: speed Display SPI bus speed
474 +Params: speed Display SPI bus speed
475
476 - rotate Display rotation {0,90,180,270}
477 + rotate Display rotation {0,90,180,270}
478
479 - fps Delay between frame updates
480 + fps Delay between frame updates
481
482 - debug Debug output level {0-7}
483 + debug Debug output level {0-7}
484
485 - touch-sizex Touchscreen size x (default 240)
486 + touch-sizex Touchscreen size x (default 240)
487
488 - touch-sizey Touchscreen size y (default 320)
489 + touch-sizey Touchscreen size y (default 320)
490
491 - touch-invx Touchscreen inverted x axis
492 + touch-invx Touchscreen inverted x axis
493
494 - touch-invy Touchscreen inverted y axis
495 + touch-invy Touchscreen inverted y axis
496
497 - touch-swapxy Touchscreen swapped x y axis
498 + touch-swapxy Touchscreen swapped x y axis
499
500
501 Name: pitft28-resistive
502 Info: Adafruit PiTFT 2.8" resistive touch screen
503 Load: dtoverlay=pitft28-resistive,<param>=<val>
504 -Params: speed Display SPI bus speed
505 +Params: speed Display SPI bus speed
506
507 - rotate Display rotation {0,90,180,270}
508 + rotate Display rotation {0,90,180,270}
509
510 - fps Delay between frame updates
511 + fps Delay between frame updates
512
513 - debug Debug output level {0-7}
514 + debug Debug output level {0-7}
515
516
517 Name: pps-gpio
518 Info: Configures the pps-gpio (pulse-per-second time signal via GPIO).
519 Load: dtoverlay=pps-gpio,<param>=<val>
520 -Params: gpiopin Input GPIO (default "18")
521 +Params: gpiopin Input GPIO (default "18")
522
523
524 Name: pwm
525 @@ -553,9 +553,9 @@ Info: Configures a single PWM channel
526 4) Currently the clock must have been enabled and configured
527 by other means.
528 Load: dtoverlay=pwm,<param>=<val>
529 -Params: pin Output pin (default 18) - see table
530 - func Pin function (default 2 = Alt5) - see above
531 - clock PWM clock frequency (informational)
532 +Params: pin Output pin (default 18) - see table
533 + func Pin function (default 2 = Alt5) - see above
534 + clock PWM clock frequency (informational)
535
536
537 Name: pwm-2chan
538 @@ -572,11 +572,11 @@ Info: Configures both PWM channels
539 4) Currently the clock must have been enabled and configured
540 by other means.
541 Load: dtoverlay=pwm-2chan,<param>=<val>
542 -Params: pin Output pin (default 18) - see table
543 - pin2 Output pin for other channel (default 19)
544 - func Pin function (default 2 = Alt5) - see above
545 - func2 Function for pin2 (default 2 = Alt5)
546 - clock PWM clock frequency (informational)
547 +Params: pin Output pin (default 18) - see table
548 + pin2 Output pin for other channel (default 19)
549 + func Pin function (default 2 = Alt5) - see above
550 + func2 Function for pin2 (default 2 = Alt5)
551 + clock PWM clock frequency (informational)
552
553
554 Name: raspidac3
555 @@ -600,15 +600,15 @@ Params: <None>
556 Name: rpi-display
557 Info: RPi-Display - 2.8" Touch Display by Watterott
558 Load: dtoverlay=rpi-display,<param>=<val>
559 -Params: speed Display SPI bus speed
560 +Params: speed Display SPI bus speed
561
562 - rotate Display rotation {0,90,180,270}
563 + rotate Display rotation {0,90,180,270}
564
565 - fps Delay between frame updates
566 + fps Delay between frame updates
567
568 - debug Debug output level {0-7}
569 + debug Debug output level {0-7}
570
571 - xohms Touchpanel sensitivity (X-plate resistance)
572 + xohms Touchpanel sensitivity (X-plate resistance)
573
574
575 Name: rpi-ft5406
576 @@ -632,52 +632,52 @@ Params: <None>
577 Name: sdhost
578 Info: Selects the bcm2835-sdhost SD/MMC driver, optionally with overclock
579 Load: dtoverlay=sdhost,<param>=<val>
580 -Params: overclock_50 Clock (in MHz) to use when the MMC framework
581 - requests 50MHz
582 +Params: overclock_50 Clock (in MHz) to use when the MMC framework
583 + requests 50MHz
584
585 - force_pio Disable DMA support (default off)
586 + force_pio Disable DMA support (default off)
587
588 - pio_limit Number of blocks above which to use DMA
589 - (default 1)
590 + pio_limit Number of blocks above which to use DMA
591 + (default 1)
592
593 - debug Enable debug output (default off)
594 + debug Enable debug output (default off)
595
596
597 Name: sdio
598 Info: Selects the bcm2835-sdhost SD/MMC driver, optionally with overclock,
599 and enables SDIO via GPIOs 22-27.
600 Load: dtoverlay=sdio,<param>=<val>
601 -Params: overclock_50 SD Clock (in MHz) to use when the MMC framework
602 - requests 50MHz
603 +Params: overclock_50 SD Clock (in MHz) to use when the MMC framework
604 + requests 50MHz
605
606 - sdio_overclock SDIO Clock (in MHz) to use when the MMC
607 - framework requests 50MHz
608 + sdio_overclock SDIO Clock (in MHz) to use when the MMC
609 + framework requests 50MHz
610
611 - force_pio Disable DMA support (default off)
612 + force_pio Disable DMA support (default off)
613
614 - pio_limit Number of blocks above which to use DMA
615 - (default 1)
616 + pio_limit Number of blocks above which to use DMA
617 + (default 1)
618
619 - debug Enable debug output (default off)
620 + debug Enable debug output (default off)
621
622 - poll_once Disable SDIO-device polling every second
623 - (default on: polling once at boot-time)
624 + poll_once Disable SDIO-device polling every second
625 + (default on: polling once at boot-time)
626
627 - bus_width Set the SDIO host bus width (default 4 bits)
628 + bus_width Set the SDIO host bus width (default 4 bits)
629
630
631 Name: sdtweak
632 Info: Tunes the bcm2835-sdhost SD/MMC driver
633 Load: dtoverlay=sdtweak,<param>=<val>
634 -Params: overclock_50 Clock (in MHz) to use when the MMC framework
635 - requests 50MHz
636 +Params: overclock_50 Clock (in MHz) to use when the MMC framework
637 + requests 50MHz
638
639 - force_pio Disable DMA support (default off)
640 + force_pio Disable DMA support (default off)
641
642 - pio_limit Number of blocks above which to use DMA
643 - (default 1)
644 + pio_limit Number of blocks above which to use DMA
645 + (default 1)
646
647 - debug Enable debug output (default off)
648 + debug Enable debug output (default off)
649
650
651 Name: smi
652 @@ -708,25 +708,25 @@ Name: tinylcd35
653 Info: 3.5" Color TFT Display by www.tinylcd.com
654 Options: Touch, RTC, keypad
655 Load: dtoverlay=tinylcd35,<param>=<val>
656 -Params: speed Display SPI bus speed
657 +Params: speed Display SPI bus speed
658
659 - rotate Display rotation {0,90,180,270}
660 + rotate Display rotation {0,90,180,270}
661
662 - fps Delay between frame updates
663 + fps Delay between frame updates
664
665 - debug Debug output level {0-7}
666 + debug Debug output level {0-7}
667
668 - touch Enable touch panel
669 + touch Enable touch panel
670
671 - touchgpio Touch controller IRQ GPIO
672 + touchgpio Touch controller IRQ GPIO
673
674 - xohms Touchpanel: Resistance of X-plate in ohms
675 + xohms Touchpanel: Resistance of X-plate in ohms
676
677 - rtc-pcf PCF8563 Real Time Clock
678 + rtc-pcf PCF8563 Real Time Clock
679
680 - rtc-ds DS1307 Real Time Clock
681 + rtc-ds DS1307 Real Time Clock
682
683 - keypad Enable keypad
684 + keypad Enable keypad
685
686 Examples:
687 Display with touchpanel, PCF8563 RTC and keypad:
688 @@ -738,9 +738,9 @@ Params: speed Display
689 Name: uart1
690 Info: Enable uart1 in place of uart0
691 Load: dtoverlay=uart1,<param>=<val>
692 -Params: txd1_pin GPIO pin for TXD1 (14, 32 or 40 - default 14)
693 +Params: txd1_pin GPIO pin for TXD1 (14, 32 or 40 - default 14)
694
695 - rxd1_pin GPIO pin for RXD1 (15, 33 or 41 - default 15)
696 + rxd1_pin GPIO pin for RXD1 (15, 33 or 41 - default 15)
697
698
699 Name: vc4-kms-v3d
700 @@ -763,22 +763,22 @@ Name: w1-gpio
701 Info: Configures the w1-gpio Onewire interface module.
702 Use this overlay if you *don't* need a GPIO to drive an external pullup.
703 Load: dtoverlay=w1-gpio,<param>=<val>
704 -Params: gpiopin GPIO for I/O (default "4")
705 +Params: gpiopin GPIO for I/O (default "4")
706
707 - pullup Non-zero, "on", or "y" to enable the parasitic
708 - power (2-wire, power-on-data) feature
709 + pullup Non-zero, "on", or "y" to enable the parasitic
710 + power (2-wire, power-on-data) feature
711
712
713 Name: w1-gpio-pullup
714 Info: Configures the w1-gpio Onewire interface module.
715 Use this overlay if you *do* need a GPIO to drive an external pullup.
716 Load: dtoverlay=w1-gpio-pullup,<param>=<val>
717 -Params: gpiopin GPIO for I/O (default "4")
718 +Params: gpiopin GPIO for I/O (default "4")
719
720 - pullup Non-zero, "on", or "y" to enable the parasitic
721 - power (2-wire, power-on-data) feature
722 + pullup Non-zero, "on", or "y" to enable the parasitic
723 + power (2-wire, power-on-data) feature
724
725 - extpullup GPIO for external pullup (default "5")
726 + extpullup GPIO for external pullup (default "5")
727
728
729 Troubleshooting
OpenWrt Source Repository