xref: /openbmc/u-boot/drivers/video/Kconfig (revision 2d1951fe)
1#
2# Video configuration
3#
4
5menu "Graphics support"
6
7config DM_VIDEO
8	bool "Enable driver model support for LCD/video"
9	depends on DM
10	help
11	  This enables driver model for LCD and video devices. These support
12	  a bitmap display of various sizes and depths which can be drawn on
13	  to display a command-line console or splash screen. Enabling this
14	  option compiles in the video uclass and routes all LCD/video access
15	  through this.
16
17config VIDEO_BPP8
18	bool "Support 8-bit-per-pixel displays"
19	depends on DM_VIDEO
20	default y if DM_VIDEO
21	help
22	  Support drawing text and bitmaps onto a 8-bit-per-pixel display.
23	  Enabling this will include code to support this display. Without
24	  this option, such displays will not be supported and console output
25	  will be empty.
26
27config VIDEO_BPP16
28	bool "Support 16-bit-per-pixel displays"
29	depends on DM_VIDEO
30	default y if DM_VIDEO
31	help
32	  Support drawing text and bitmaps onto a 16-bit-per-pixel display.
33	  Enabling this will include code to support this display. Without
34	  this option, such displays will not be supported and console output
35	  will be empty.
36
37config VIDEO_BPP32
38	bool "Support 32-bit-per-pixel displays"
39	depends on DM_VIDEO
40	default y if DM_VIDEO
41	help
42	  Support drawing text and bitmaps onto a 32-bit-per-pixel display.
43	  Enabling this will include code to support this display. Without
44	  this option, such displays will not be supported and console output
45	  will be empty.
46
47config CONSOLE_NORMAL
48	bool "Support a simple text console"
49	depends on DM_VIDEO
50	default y if DM_VIDEO
51	help
52	  Support drawing text on the frame buffer console so that it can be
53	  used as a console. Rotation is not supported by this driver (see
54	  CONFIG_CONSOLE_ROTATION for that). A built-in 8x16 font is used
55	  for the display.
56
57config CONSOLE_ROTATION
58	bool "Support rotated displays"
59	depends on DM_VIDEO
60	help
61	  Sometimes, for example if the display is mounted in portrait
62	  mode or even if it's mounted landscape but rotated by 180degree,
63	  we need to rotate our content of the display relative to the
64	  framebuffer, so that user can read the messages which are
65	  printed out. Enable this option to include a text driver which can
66	  support this. The rotation is set by the 'rot' parameter in
67	  struct video_priv: 0=unrotated, 1=90 degrees clockwise, 2=180
68	  degrees, 3=270 degrees.
69
70config CONSOLE_TRUETYPE
71	bool "Support a console that uses TrueType fonts"
72	depends on DM_VIDEO
73	help
74	  TrueTrype fonts can provide outline-drawing capability rather than
75	  needing to provide a bitmap for each font and size that is needed.
76	  With this option you can adjust the text size and use a variety of
77	  fonts. Note that this is noticeably slower than with normal console.
78
79config CONSOLE_TRUETYPE_SIZE
80	int "TrueType font size"
81	depends on CONSOLE_TRUETYPE
82	default 18
83	help
84	  This sets the font size for the console. The size is measured in
85	  pixels and is the nominal height of a character. Note that fonts
86	  are commonly measured in 'points', being 1/72 inch (about 3.52mm).
87	  However that measurement depends on the size of your display and
88	  there is no standard display density. At present there is not a
89	  method to select the display's physical size, which would allow
90	  U-Boot to calculate the correct font size.
91
92config SYS_WHITE_ON_BLACK
93	bool "Display console as white on a black background"
94	default y if ARCH_AT91 || ARCH_EXYNOS || ARCH_ROCKCHIP || TEGRA || X86
95	help
96	 Normally the display is black on a white background, Enable this
97	 option to invert this, i.e. white on a black background. This can be
98	 better in low-light situations or to reduce eye strain in some
99	 cases.
100
101source "drivers/video/fonts/Kconfig"
102
103config VIDCONSOLE_AS_LCD
104	bool "Use 'vidconsole' when 'lcd' is seen in stdout"
105	depends on DM_VIDEO
106	help
107	  This is a work-around for boards which have 'lcd' in their stdout
108	  environment variable, but have moved to use driver model for video.
109	  In this case the console will no-longer work. While it is possible
110	  to update the environment, the breakage may be confusing for users.
111	  This option will be removed around the end of 2016.
112
113config VIDEO_COREBOOT
114	bool "Enable coreboot framebuffer driver support"
115	depends on X86 && SYS_COREBOOT
116	help
117	  Turn on this option to enable a framebuffer driver when U-Boot is
118	  loaded by coreboot where the graphics device is configured by
119	  coreboot already. This can in principle be used with any platform
120	  that coreboot supports.
121
122config VIDEO_VESA
123	bool "Enable VESA video driver support"
124	default n
125	help
126	  Turn on this option to enable a very simple driver which uses vesa
127	  to discover the video mode and then provides a frame buffer for use
128	  by U-Boot. This can in principle be used with any platform that
129	  supports PCI and video cards that support VESA BIOS Extension (VBE).
130
131config FRAMEBUFFER_SET_VESA_MODE
132	bool "Set framebuffer graphics resolution"
133	depends on VIDEO_VESA || VIDEO_BROADWELL_IGD
134	help
135	  Set VESA/native framebuffer mode (needed for bootsplash and graphical
136	  framebuffer console)
137
138choice
139	prompt "framebuffer graphics resolution"
140	default FRAMEBUFFER_VESA_MODE_117
141	depends on FRAMEBUFFER_SET_VESA_MODE
142	help
143	  This option sets the resolution used for the U-Boot framebuffer (and
144	  bootsplash screen).
145
146config FRAMEBUFFER_VESA_MODE_100
147	bool "640x400 256-color"
148
149config FRAMEBUFFER_VESA_MODE_101
150	bool "640x480 256-color"
151
152config FRAMEBUFFER_VESA_MODE_102
153	bool "800x600 16-color"
154
155config FRAMEBUFFER_VESA_MODE_103
156	bool "800x600 256-color"
157
158config FRAMEBUFFER_VESA_MODE_104
159	bool "1024x768 16-color"
160
161config FRAMEBUFFER_VESA_MODE_105
162	bool "1024x768 256-color"
163
164config FRAMEBUFFER_VESA_MODE_106
165	bool "1280x1024 16-color"
166
167config FRAMEBUFFER_VESA_MODE_107
168	bool "1280x1024 256-color"
169
170config FRAMEBUFFER_VESA_MODE_108
171	bool "80x60 text"
172
173config FRAMEBUFFER_VESA_MODE_109
174	bool "132x25 text"
175
176config FRAMEBUFFER_VESA_MODE_10A
177	bool "132x43 text"
178
179config FRAMEBUFFER_VESA_MODE_10B
180	bool "132x50 text"
181
182config FRAMEBUFFER_VESA_MODE_10C
183	bool "132x60 text"
184
185config FRAMEBUFFER_VESA_MODE_10D
186	bool "320x200 32k-color (1:5:5:5)"
187
188config FRAMEBUFFER_VESA_MODE_10E
189	bool "320x200 64k-color (5:6:5)"
190
191config FRAMEBUFFER_VESA_MODE_10F
192	bool "320x200 16.8M-color (8:8:8)"
193
194config FRAMEBUFFER_VESA_MODE_110
195	bool "640x480 32k-color (1:5:5:5)"
196
197config FRAMEBUFFER_VESA_MODE_111
198	bool "640x480 64k-color (5:6:5)"
199
200config FRAMEBUFFER_VESA_MODE_112
201	bool "640x480 16.8M-color (8:8:8)"
202
203config FRAMEBUFFER_VESA_MODE_113
204	bool "800x600 32k-color (1:5:5:5)"
205
206config FRAMEBUFFER_VESA_MODE_114
207	bool "800x600 64k-color (5:6:5)"
208
209config FRAMEBUFFER_VESA_MODE_115
210	bool "800x600 16.8M-color (8:8:8)"
211
212config FRAMEBUFFER_VESA_MODE_116
213	bool "1024x768 32k-color (1:5:5:5)"
214
215config FRAMEBUFFER_VESA_MODE_117
216	bool "1024x768 64k-color (5:6:5)"
217
218config FRAMEBUFFER_VESA_MODE_118
219	bool "1024x768 16.8M-color (8:8:8)"
220
221config FRAMEBUFFER_VESA_MODE_119
222	bool "1280x1024 32k-color (1:5:5:5)"
223
224config FRAMEBUFFER_VESA_MODE_11A
225	bool "1280x1024 64k-color (5:6:5)"
226
227config FRAMEBUFFER_VESA_MODE_11B
228	bool "1280x1024 16.8M-color (8:8:8)"
229
230config FRAMEBUFFER_VESA_MODE_USER
231	bool "Manually select VESA mode"
232
233endchoice
234
235# Map the config names to an integer (KB).
236config FRAMEBUFFER_VESA_MODE
237	prompt "VESA mode" if FRAMEBUFFER_VESA_MODE_USER
238	hex
239	default 0x100 if FRAMEBUFFER_VESA_MODE_100
240	default 0x101 if FRAMEBUFFER_VESA_MODE_101
241	default 0x102 if FRAMEBUFFER_VESA_MODE_102
242	default 0x103 if FRAMEBUFFER_VESA_MODE_103
243	default 0x104 if FRAMEBUFFER_VESA_MODE_104
244	default 0x105 if FRAMEBUFFER_VESA_MODE_105
245	default 0x106 if FRAMEBUFFER_VESA_MODE_106
246	default 0x107 if FRAMEBUFFER_VESA_MODE_107
247	default 0x108 if FRAMEBUFFER_VESA_MODE_108
248	default 0x109 if FRAMEBUFFER_VESA_MODE_109
249	default 0x10A if FRAMEBUFFER_VESA_MODE_10A
250	default 0x10B if FRAMEBUFFER_VESA_MODE_10B
251	default 0x10C if FRAMEBUFFER_VESA_MODE_10C
252	default 0x10D if FRAMEBUFFER_VESA_MODE_10D
253	default 0x10E if FRAMEBUFFER_VESA_MODE_10E
254	default 0x10F if FRAMEBUFFER_VESA_MODE_10F
255	default 0x110 if FRAMEBUFFER_VESA_MODE_110
256	default 0x111 if FRAMEBUFFER_VESA_MODE_111
257	default 0x112 if FRAMEBUFFER_VESA_MODE_112
258	default 0x113 if FRAMEBUFFER_VESA_MODE_113
259	default 0x114 if FRAMEBUFFER_VESA_MODE_114
260	default 0x115 if FRAMEBUFFER_VESA_MODE_115
261	default 0x116 if FRAMEBUFFER_VESA_MODE_116
262	default 0x117 if FRAMEBUFFER_VESA_MODE_117
263	default 0x118 if FRAMEBUFFER_VESA_MODE_118
264	default 0x119 if FRAMEBUFFER_VESA_MODE_119
265	default 0x11A if FRAMEBUFFER_VESA_MODE_11A
266	default 0x11B if FRAMEBUFFER_VESA_MODE_11B
267	default 0x117 if FRAMEBUFFER_VESA_MODE_USER
268
269config VIDEO_LCD_ANX9804
270	bool "ANX9804 bridge chip"
271	default n
272	---help---
273	Support for the ANX9804 bridge chip, which can take pixel data coming
274	from a parallel LCD interface and translate it on the fy into a DP
275	interface for driving eDP TFT displays. It uses I2C for configuration.
276
277config VIDEO_LCD_SSD2828
278	bool "SSD2828 bridge chip"
279	default n
280	---help---
281	Support for the SSD2828 bridge chip, which can take pixel data coming
282	from a parallel LCD interface and translate it on the fly into MIPI DSI
283	interface for driving a MIPI compatible LCD panel. It uses SPI for
284	configuration.
285
286config VIDEO_LCD_SSD2828_TX_CLK
287	int "SSD2828 TX_CLK frequency (in MHz)"
288	depends on VIDEO_LCD_SSD2828
289	default 0
290	---help---
291	The frequency of the crystal, which is clocking SSD2828. It may be
292	anything in the 8MHz-30MHz range and the exact value should be
293	retrieved from the board schematics. Or in the case of Allwinner
294	hardware, it can be usually found as 'lcd_xtal_freq' variable in
295	FEX files. It can be also set to 0 for selecting PCLK from the
296	parallel LCD interface instead of TX_CLK as the PLL clock source.
297
298config VIDEO_LCD_SSD2828_RESET
299	string "RESET pin of SSD2828"
300	depends on VIDEO_LCD_SSD2828
301	default ""
302	---help---
303	The reset pin of SSD2828 chip. This takes a string in the format
304	understood by 'name_to_gpio' function, e.g. PH1 for pin 1 of port H.
305
306config VIDEO_LCD_HITACHI_TX18D42VM
307	bool "Hitachi tx18d42vm LVDS LCD panel support"
308	depends on VIDEO
309	default n
310	---help---
311	Support for Hitachi tx18d42vm LVDS LCD panels, these panels have a
312	lcd controller which needs to be initialized over SPI, once that is
313	done they work like a regular LVDS panel.
314
315config VIDEO_LCD_SPI_CS
316	string "SPI CS pin for LCD related config job"
317	depends on VIDEO_LCD_SSD2828 || VIDEO_LCD_HITACHI_TX18D42VM
318	default ""
319	---help---
320	This is one of the SPI communication pins, involved in setting up a
321	working LCD configuration. The exact role of SPI may differ for
322	different hardware setups. The option takes a string in the format
323	understood by 'name_to_gpio' function, e.g. PH1 for pin 1 of port H.
324
325config VIDEO_LCD_SPI_SCLK
326	string "SPI SCLK pin for LCD related config job"
327	depends on VIDEO_LCD_SSD2828 || VIDEO_LCD_HITACHI_TX18D42VM
328	default ""
329	---help---
330	This is one of the SPI communication pins, involved in setting up a
331	working LCD configuration. The exact role of SPI may differ for
332	different hardware setups. The option takes a string in the format
333	understood by 'name_to_gpio' function, e.g. PH1 for pin 1 of port H.
334
335config VIDEO_LCD_SPI_MOSI
336	string "SPI MOSI pin for LCD related config job"
337	depends on VIDEO_LCD_SSD2828 || VIDEO_LCD_HITACHI_TX18D42VM
338	default ""
339	---help---
340	This is one of the SPI communication pins, involved in setting up a
341	working LCD configuration. The exact role of SPI may differ for
342	different hardware setups. The option takes a string in the format
343	understood by 'name_to_gpio' function, e.g. PH1 for pin 1 of port H.
344
345config VIDEO_LCD_SPI_MISO
346	string "SPI MISO pin for LCD related config job (optional)"
347	depends on VIDEO_LCD_SSD2828
348	default ""
349	---help---
350	This is one of the SPI communication pins, involved in setting up a
351	working LCD configuration. The exact role of SPI may differ for
352	different hardware setups. If wired up, this pin may provide additional
353	useful functionality. Such as bi-directional communication with the
354	hardware and LCD panel id retrieval (if the panel can report it). The
355	option takes a string in the format understood by 'name_to_gpio'
356	function, e.g. PH1 for pin 1 of port H.
357
358config VIDEO_MVEBU
359	bool "Armada XP LCD controller"
360	default n
361	---help---
362	Support for the LCD controller integrated in the Marvell
363	Armada XP SoC.
364
365config I2C_EDID
366	bool "Enable EDID library"
367	depends on DM_I2C
368	default n
369	help
370	   This enables library for accessing EDID data from an LCD panel.
371
372config DISPLAY
373	bool "Enable Display support"
374	depends on DM
375	default n
376	select I2C_EDID
377	help
378	   This supports drivers that provide a display, such as eDP (Embedded
379	   DisplayPort) and HDMI (High Definition Multimedia Interface).
380	   The devices provide a simple interface to start up the display,
381	   read display information and enable it.
382
383config ATMEL_HLCD
384	bool "Enable ATMEL video support using HLCDC"
385	depends on DM_VIDEO
386	help
387	   HLCDC supports video output to an attached LCD panel.
388
389config VIDEO_BROADWELL_IGD
390	bool "Enable Intel Broadwell integrated graphics device"
391	depends on X86
392	help
393	  This enables support for integrated graphics on Intel broadwell
394	  devices. Initialisation is mostly performed by a VGA boot ROM, with
395	  some setup handled by U-Boot itself. The graphics adaptor works as
396	  a VESA device and supports LCD panels, eDP and LVDS outputs.
397	  Configuration of most aspects of device operation is performed using
398	  a special tool which configures the VGA ROM, but the graphics
399	  resolution can be selected in U-Boot.
400
401config VIDEO_IVYBRIDGE_IGD
402	bool "Enable Intel Ivybridge integration graphics support"
403	depends on X86
404	help
405	  This enables support for integrated graphics on Intel ivybridge
406	  devices. Initialisation is mostly performed by a VGA boot ROM, with
407	  some setup handled by U-Boot itself. The graphics adaptor works as
408	  a VESA device and supports LCD panels, eDP and LVDS outputs.
409	  Configuration of most aspects of device operation is performed using
410	  a special tool which configures the VGA ROM, but the graphics
411	  resolution can be selected in U-Boot.
412
413config VIDEO_FSL_DCU_FB
414	bool "Enable Freescale Display Control Unit"
415	depends on VIDEO
416	help
417	 This enables support for Freescale Display Control Unit (DCU4)
418	 module found on Freescale Vybrid and QorIQ family of SoCs.
419
420config VIDEO_FSL_DCU_MAX_FB_SIZE_MB
421	int "Freescale DCU framebuffer size"
422	depends on VIDEO_FSL_DCU_FB
423	default 4194304
424	help
425	 Set maximum framebuffer size to be used for Freescale Display
426	 Controller Unit (DCU4).
427
428source "drivers/video/rockchip/Kconfig"
429
430config VIDEO_SANDBOX_SDL
431	bool "Enable sandbox video console using SDL"
432	depends on SANDBOX
433	help
434	  When using sandbox you can enable an emulated LCD display which
435	  appears as an SDL (Simple DirectMedia Layer) window. This is a
436	  console device and can display stdout output. Within U-Boot is is
437	  a normal bitmap display and can display images as well as text.
438
439config VIDEO_TEGRA20
440	bool "Enable LCD support on Tegra20"
441	depends on OF_CONTROL
442	help
443	   Tegra20 supports video output to an attached LCD panel as well as
444	   other options such as HDMI. Only the LCD is supported in U-Boot.
445	   This option enables this support which can be used on devices which
446	   have an LCD display connected.
447
448config VIDEO_TEGRA124
449	bool "Enable video support on Tegra124"
450	depends on DM_VIDEO
451	help
452	   Tegra124 supports many video output options including eDP and
453	   HDMI. At present only eDP is supported by U-Boot. This option
454	   enables this support which can be used on devices which
455	   have an eDP display connected.
456
457source "drivers/video/bridge/Kconfig"
458
459config VIDEO
460	bool "Enable legacy video support"
461	depends on !DM_VIDEO
462	help
463	  Define this for video support, without using driver model. Some
464	  drivers use this because they are not yet converted to driver
465	  model. Video drivers typically provide a colour text console and
466	  cursor.
467
468config VIDEO_IPUV3
469	bool "i.MX IPUv3 Core video support"
470	depends on VIDEO && MX6
471	help
472	  This enables framebuffer driver for i.MX processors working
473	  on the IPUv3(Image Processing Unit) internal graphic processor.
474
475config CFB_CONSOLE
476	bool "Enable colour frame buffer console"
477	depends on VIDEO
478	default y if VIDEO
479	help
480	  Enables the colour frame buffer driver. This supports colour
481	  output on a bitmap display from an in-memory frame buffer.
482	  Several colour devices are supported along with various options to
483	  adjust the supported features. The driver is implemented in
484	  cfb_console.c
485
486	  The following defines are needed (cf. smiLynxEM, i8042)
487		VIDEO_FB_LITTLE_ENDIAN	graphic memory organisation
488					(default big endian)
489		VIDEO_HW_RECTFILL	graphic chip supports
490					rectangle fill (cf. smiLynxEM)
491		VIDEO_HW_BITBLT		graphic chip supports
492					bit-blit (cf. smiLynxEM)
493		VIDEO_VISIBLE_COLS	visible pixel columns (cols=pitch)
494		VIDEO_VISIBLE_ROWS	visible pixel rows
495		VIDEO_PIXEL_SIZE	bytes per pixel
496		VIDEO_DATA_FORMAT	graphic data format
497					(0-5, cf. cfb_console.c)
498		VIDEO_FB_ADRS		framebuffer address
499		VIDEO_KBD_INIT_FCT	keyboard int fct (i.e. rx51_kp_init())
500		VIDEO_TSTC_FCT		test char fct (i.e. rx51_kp_tstc)
501		VIDEO_GETC_FCT		get char fct (i.e. rx51_kp_getc)
502		CONFIG_VIDEO_LOGO	display Linux logo in upper left corner
503		CONFIG_VIDEO_BMP_LOGO	use bmp_logo.h instead of linux_logo.h
504					for logo. Requires CONFIG_VIDEO_LOGO
505		CONFIG_CONSOLE_EXTRA_INFO
506					additional board info beside
507					the logo
508		CONFIG_HIDE_LOGO_VERSION
509					do not display bootloader
510					version string
511
512	  When CONFIG_CFB_CONSOLE is defined, the video console is the
513	  default console. The serial console can be forced by setting the
514	  environment 'console=serial'.
515
516config CFB_CONSOLE_ANSI
517	bool "Support ANSI escape sequences"
518	depends on CFB_CONSOLE
519	help
520	  This allows the colour buffer frame buffer driver to support
521	  a limited number of ANSI escape sequences (cursor control,
522	  erase functions and limited graphics rendition control). Normal
523	  output from U-Boot will pass through this filter.
524
525config VGA_AS_SINGLE_DEVICE
526	bool "Set the video as an output-only device"
527	depends on CFB_CONSOLE
528	default y
529	help
530	  If enable the framebuffer device will be initialized as an
531	  output-only device. The Keyboard driver will not be set up. This
532	  may be used if you have no keyboard device, or more than one
533	  (USB Keyboard, AT Keyboard).
534
535config VIDEO_SW_CURSOR
536	bool "Enable a software cursor"
537	depends on CFB_CONSOLE
538	default y if CFB_CONSOLE
539	help
540	  This draws a cursor after the last character. No blinking is
541	  provided. This makes it possible to see the current cursor
542	  position when entering text on the console. It is recommended to
543	  enable this.
544
545config CONSOLE_EXTRA_INFO
546	bool "Display additional board information"
547	depends on CFB_CONSOLE
548	help
549	  Display additional board information strings that normally go to
550	  the serial port. When this option is enabled, a board-specific
551	  function video_get_info_str() is called to get the string for
552	  each line of the display. The function should return the string,
553	  which can be empty if there is nothing to display for that line.
554
555config CONSOLE_SCROLL_LINES
556	int "Number of lines to scroll the console by"
557	depends on CFB_CONSOLE || DM_VIDEO || LCD
558	default 1
559	help
560	  When the console need to be scrolled, this is the number of
561	  lines to scroll by. It defaults to 1. Increasing this makes the
562	  console jump but can help speed up operation when scrolling
563	  is slow.
564
565config VIDEO_CT69000
566	bool "Enable Chips & Technologies 69000 video driver"
567	depends on VIDEO
568	help
569	  This enables a frame buffer driver for the Chips & Technologies
570	  ct69000, a fairly old graphics device (circa 2000) which is used
571	  on some hardware. It operates over the ISA bus, and supports
572	  some acceleration features.
573
574	  For the CT69000 and SMI_LYNXEM drivers, videomode is
575		selected via environment 'videomode'. Two different ways
576		are possible:
577		- "videomode=num"   'num' is a standard LiLo mode numbers.
578		Following standard modes are supported	(* is default):
579
580		      Colors	640x480 800x600 1024x768 1152x864 1280x1024
581		-------------+---------------------------------------------
582		      8 bits |	0x301*	0x303	 0x305	  0x161	    0x307
583		     15 bits |	0x310	0x313	 0x316	  0x162	    0x319
584		     16 bits |	0x311	0x314	 0x317	  0x163	    0x31A
585		     24 bits |	0x312	0x315	 0x318	    ?	    0x31B
586		-------------+---------------------------------------------
587		(i.e. setenv videomode 317; saveenv; reset;)
588
589		- "videomode=bootargs" all the video parameters are parsed
590		from the bootargs. (See drivers/video/videomodes.c)
591
592config SYS_CONSOLE_BG_COL
593	hex "Background colour"
594	depends on CFB_CONSOLE || VIDEO_CT69000
595	default 0x00
596	help
597	  Defines the background colour for the console. The value is from
598	  0x00 to 0xff and the meaning depends on the graphics card.
599	  Typically, 0x00 means black and 0xff means white. Do not set
600	  the background and foreground to the same colour or you will see
601	  nothing.
602
603config SYS_CONSOLE_FG_COL
604	hex "Foreground colour"
605	depends on CFB_CONSOLE || VIDEO_CT69000
606	default 0xa0
607	help
608	  Defines the foreground colour for the console. The value is from
609	  0x00 to 0xff and the meaning depends on the graphics card.
610	  Typically, 0x00 means black and 0xff means white. Do not set
611	  the background and foreground to the same colour or you will see
612	  nothing.
613
614config LCD
615	bool "Enable legacy LCD support"
616	help
617	  Define this to enable LCD support (for output to LCD display).
618	  You will also need to select an LCD driver using an additional
619	  CONFIG option. See the README for details. Drives which have been
620	  converted to driver model will instead used CONFIG_DM_VIDEO.
621
622config VIDEO_DW_HDMI
623	bool
624	help
625	  Enables the common driver code for the Designware HDMI TX
626	  block found in SoCs from various vendors.
627	  As this does not provide any functionality by itself (but
628	  rather requires a SoC-specific glue driver to call it), it
629	  can not be enabled from the configuration menu.
630
631endmenu
632