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 BACKLIGHT_PWM 18 bool "Generic PWM based Backlight Driver" 19 depends on DM_VIDEO && DM_PWM 20 default y 21 help 22 If you have a LCD backlight adjustable by PWM, say Y to enable 23 this driver. 24 This driver can be use with "simple-panel" and 25 it understands the standard device tree 26 (leds/backlight/pwm-backlight.txt) 27 28config BACKLIGHT_GPIO 29 bool "Generic GPIO based Backlight Driver" 30 depends on DM_VIDEO 31 help 32 If you have a LCD backlight adjustable by GPIO, say Y to enable 33 this driver. 34 This driver can be used with "simple-panel" and 35 it understands the standard device tree 36 (leds/backlight/gpio-backlight.txt) 37 38config VIDEO_BPP8 39 bool "Support 8-bit-per-pixel displays" 40 depends on DM_VIDEO 41 default y if DM_VIDEO 42 help 43 Support drawing text and bitmaps onto a 8-bit-per-pixel display. 44 Enabling this will include code to support this display. Without 45 this option, such displays will not be supported and console output 46 will be empty. 47 48config VIDEO_BPP16 49 bool "Support 16-bit-per-pixel displays" 50 depends on DM_VIDEO 51 default y if DM_VIDEO 52 help 53 Support drawing text and bitmaps onto a 16-bit-per-pixel display. 54 Enabling this will include code to support this display. Without 55 this option, such displays will not be supported and console output 56 will be empty. 57 58config VIDEO_BPP32 59 bool "Support 32-bit-per-pixel displays" 60 depends on DM_VIDEO 61 default y if DM_VIDEO 62 help 63 Support drawing text and bitmaps onto a 32-bit-per-pixel display. 64 Enabling this will include code to support this display. Without 65 this option, such displays will not be supported and console output 66 will be empty. 67 68config VIDEO_ANSI 69 bool "Support ANSI escape sequences in video console" 70 depends on DM_VIDEO 71 default y if DM_VIDEO 72 help 73 Enable ANSI escape sequence decoding for a more fully functional 74 console. 75 76config CONSOLE_NORMAL 77 bool "Support a simple text console" 78 depends on DM_VIDEO 79 default y if DM_VIDEO 80 help 81 Support drawing text on the frame buffer console so that it can be 82 used as a console. Rotation is not supported by this driver (see 83 CONFIG_CONSOLE_ROTATION for that). A built-in 8x16 font is used 84 for the display. 85 86config CONSOLE_ROTATION 87 bool "Support rotated displays" 88 depends on DM_VIDEO 89 help 90 Sometimes, for example if the display is mounted in portrait 91 mode or even if it's mounted landscape but rotated by 180degree, 92 we need to rotate our content of the display relative to the 93 framebuffer, so that user can read the messages which are 94 printed out. Enable this option to include a text driver which can 95 support this. The rotation is set by the 'rot' parameter in 96 struct video_priv: 0=unrotated, 1=90 degrees clockwise, 2=180 97 degrees, 3=270 degrees. 98 99config CONSOLE_TRUETYPE 100 bool "Support a console that uses TrueType fonts" 101 depends on DM_VIDEO 102 help 103 TrueTrype fonts can provide outline-drawing capability rather than 104 needing to provide a bitmap for each font and size that is needed. 105 With this option you can adjust the text size and use a variety of 106 fonts. Note that this is noticeably slower than with normal console. 107 108config CONSOLE_TRUETYPE_SIZE 109 int "TrueType font size" 110 depends on CONSOLE_TRUETYPE 111 default 18 112 help 113 This sets the font size for the console. The size is measured in 114 pixels and is the nominal height of a character. Note that fonts 115 are commonly measured in 'points', being 1/72 inch (about 3.52mm). 116 However that measurement depends on the size of your display and 117 there is no standard display density. At present there is not a 118 method to select the display's physical size, which would allow 119 U-Boot to calculate the correct font size. 120 121config SYS_WHITE_ON_BLACK 122 bool "Display console as white on a black background" 123 default y if ARCH_AT91 || ARCH_EXYNOS || ARCH_ROCKCHIP || TEGRA || X86 124 help 125 Normally the display is black on a white background, Enable this 126 option to invert this, i.e. white on a black background. This can be 127 better in low-light situations or to reduce eye strain in some 128 cases. 129 130config NO_FB_CLEAR 131 bool "Skip framebuffer clear" 132 help 133 If firmware (whatever loads u-boot) has already put a splash image 134 on screen, you might want to preserve it until whatever u-boot 135 loads takes over the screen. This, for example, can be used to 136 keep splash image on screen until grub graphical boot menu starts. 137 138source "drivers/video/fonts/Kconfig" 139 140config VIDCONSOLE_AS_LCD 141 bool "Use 'vidconsole' when 'lcd' is seen in stdout" 142 depends on DM_VIDEO 143 help 144 This is a work-around for boards which have 'lcd' in their stdout 145 environment variable, but have moved to use driver model for video. 146 In this case the console will no-longer work. While it is possible 147 to update the environment, the breakage may be confusing for users. 148 This option will be removed around the end of 2016. 149 150config VIDEO_COREBOOT 151 bool "Enable coreboot framebuffer driver support" 152 depends on X86 && SYS_COREBOOT 153 help 154 Turn on this option to enable a framebuffer driver when U-Boot is 155 loaded by coreboot where the graphics device is configured by 156 coreboot already. This can in principle be used with any platform 157 that coreboot supports. 158 159config VIDEO_EFI 160 bool "Enable EFI framebuffer driver support" 161 depends on EFI_STUB 162 help 163 Turn on this option to enable a framebuffeer driver when U-Boot is 164 loaded as a payload (see README.u-boot_on_efi) by an EFI BIOS where 165 the graphics device is configured by the EFI BIOS already. This can 166 in principle be used with any platform that has an EFI BIOS. 167 168config VIDEO_VESA 169 bool "Enable VESA video driver support" 170 default n 171 help 172 Turn on this option to enable a very simple driver which uses vesa 173 to discover the video mode and then provides a frame buffer for use 174 by U-Boot. This can in principle be used with any platform that 175 supports PCI and video cards that support VESA BIOS Extension (VBE). 176 177config FRAMEBUFFER_SET_VESA_MODE 178 bool "Set framebuffer graphics resolution" 179 depends on VIDEO_VESA || VIDEO_BROADWELL_IGD 180 help 181 Set VESA/native framebuffer mode (needed for bootsplash and graphical 182 framebuffer console) 183 184choice 185 prompt "framebuffer graphics resolution" 186 default FRAMEBUFFER_VESA_MODE_118 187 depends on FRAMEBUFFER_SET_VESA_MODE 188 help 189 This option sets the resolution used for the U-Boot framebuffer (and 190 bootsplash screen). 191 192config FRAMEBUFFER_VESA_MODE_100 193 bool "640x400 256-color" 194 195config FRAMEBUFFER_VESA_MODE_101 196 bool "640x480 256-color" 197 198config FRAMEBUFFER_VESA_MODE_102 199 bool "800x600 16-color" 200 201config FRAMEBUFFER_VESA_MODE_103 202 bool "800x600 256-color" 203 204config FRAMEBUFFER_VESA_MODE_104 205 bool "1024x768 16-color" 206 207config FRAMEBUFFER_VESA_MODE_105 208 bool "1024x768 256-color" 209 210config FRAMEBUFFER_VESA_MODE_106 211 bool "1280x1024 16-color" 212 213config FRAMEBUFFER_VESA_MODE_107 214 bool "1280x1024 256-color" 215 216config FRAMEBUFFER_VESA_MODE_108 217 bool "80x60 text" 218 219config FRAMEBUFFER_VESA_MODE_109 220 bool "132x25 text" 221 222config FRAMEBUFFER_VESA_MODE_10A 223 bool "132x43 text" 224 225config FRAMEBUFFER_VESA_MODE_10B 226 bool "132x50 text" 227 228config FRAMEBUFFER_VESA_MODE_10C 229 bool "132x60 text" 230 231config FRAMEBUFFER_VESA_MODE_10D 232 bool "320x200 32k-color (1:5:5:5)" 233 234config FRAMEBUFFER_VESA_MODE_10E 235 bool "320x200 64k-color (5:6:5)" 236 237config FRAMEBUFFER_VESA_MODE_10F 238 bool "320x200 16.8M-color (8:8:8)" 239 240config FRAMEBUFFER_VESA_MODE_110 241 bool "640x480 32k-color (1:5:5:5)" 242 243config FRAMEBUFFER_VESA_MODE_111 244 bool "640x480 64k-color (5:6:5)" 245 246config FRAMEBUFFER_VESA_MODE_112 247 bool "640x480 16.8M-color (8:8:8)" 248 249config FRAMEBUFFER_VESA_MODE_113 250 bool "800x600 32k-color (1:5:5:5)" 251 252config FRAMEBUFFER_VESA_MODE_114 253 bool "800x600 64k-color (5:6:5)" 254 255config FRAMEBUFFER_VESA_MODE_115 256 bool "800x600 16.8M-color (8:8:8)" 257 258config FRAMEBUFFER_VESA_MODE_116 259 bool "1024x768 32k-color (1:5:5:5)" 260 261config FRAMEBUFFER_VESA_MODE_117 262 bool "1024x768 64k-color (5:6:5)" 263 264config FRAMEBUFFER_VESA_MODE_118 265 bool "1024x768 16.8M-color (8:8:8)" 266 267config FRAMEBUFFER_VESA_MODE_119 268 bool "1280x1024 32k-color (1:5:5:5)" 269 270config FRAMEBUFFER_VESA_MODE_11A 271 bool "1280x1024 64k-color (5:6:5)" 272 273config FRAMEBUFFER_VESA_MODE_11B 274 bool "1280x1024 16.8M-color (8:8:8)" 275 276config FRAMEBUFFER_VESA_MODE_USER 277 bool "Manually select VESA mode" 278 279endchoice 280 281# Map the config names to an integer (KB). 282config FRAMEBUFFER_VESA_MODE 283 prompt "VESA mode" if FRAMEBUFFER_VESA_MODE_USER 284 hex 285 default 0x100 if FRAMEBUFFER_VESA_MODE_100 286 default 0x101 if FRAMEBUFFER_VESA_MODE_101 287 default 0x102 if FRAMEBUFFER_VESA_MODE_102 288 default 0x103 if FRAMEBUFFER_VESA_MODE_103 289 default 0x104 if FRAMEBUFFER_VESA_MODE_104 290 default 0x105 if FRAMEBUFFER_VESA_MODE_105 291 default 0x106 if FRAMEBUFFER_VESA_MODE_106 292 default 0x107 if FRAMEBUFFER_VESA_MODE_107 293 default 0x108 if FRAMEBUFFER_VESA_MODE_108 294 default 0x109 if FRAMEBUFFER_VESA_MODE_109 295 default 0x10A if FRAMEBUFFER_VESA_MODE_10A 296 default 0x10B if FRAMEBUFFER_VESA_MODE_10B 297 default 0x10C if FRAMEBUFFER_VESA_MODE_10C 298 default 0x10D if FRAMEBUFFER_VESA_MODE_10D 299 default 0x10E if FRAMEBUFFER_VESA_MODE_10E 300 default 0x10F if FRAMEBUFFER_VESA_MODE_10F 301 default 0x110 if FRAMEBUFFER_VESA_MODE_110 302 default 0x111 if FRAMEBUFFER_VESA_MODE_111 303 default 0x112 if FRAMEBUFFER_VESA_MODE_112 304 default 0x113 if FRAMEBUFFER_VESA_MODE_113 305 default 0x114 if FRAMEBUFFER_VESA_MODE_114 306 default 0x115 if FRAMEBUFFER_VESA_MODE_115 307 default 0x116 if FRAMEBUFFER_VESA_MODE_116 308 default 0x117 if FRAMEBUFFER_VESA_MODE_117 309 default 0x118 if FRAMEBUFFER_VESA_MODE_118 310 default 0x119 if FRAMEBUFFER_VESA_MODE_119 311 default 0x11A if FRAMEBUFFER_VESA_MODE_11A 312 default 0x11B if FRAMEBUFFER_VESA_MODE_11B 313 default 0x117 if FRAMEBUFFER_VESA_MODE_USER 314 315config VIDEO_LCD_ANX9804 316 bool "ANX9804 bridge chip" 317 default n 318 ---help--- 319 Support for the ANX9804 bridge chip, which can take pixel data coming 320 from a parallel LCD interface and translate it on the fy into a DP 321 interface for driving eDP TFT displays. It uses I2C for configuration. 322 323config VIDEO_LCD_SSD2828 324 bool "SSD2828 bridge chip" 325 default n 326 ---help--- 327 Support for the SSD2828 bridge chip, which can take pixel data coming 328 from a parallel LCD interface and translate it on the fly into MIPI DSI 329 interface for driving a MIPI compatible LCD panel. It uses SPI for 330 configuration. 331 332config VIDEO_LCD_SSD2828_TX_CLK 333 int "SSD2828 TX_CLK frequency (in MHz)" 334 depends on VIDEO_LCD_SSD2828 335 default 0 336 ---help--- 337 The frequency of the crystal, which is clocking SSD2828. It may be 338 anything in the 8MHz-30MHz range and the exact value should be 339 retrieved from the board schematics. Or in the case of Allwinner 340 hardware, it can be usually found as 'lcd_xtal_freq' variable in 341 FEX files. It can be also set to 0 for selecting PCLK from the 342 parallel LCD interface instead of TX_CLK as the PLL clock source. 343 344config VIDEO_LCD_SSD2828_RESET 345 string "RESET pin of SSD2828" 346 depends on VIDEO_LCD_SSD2828 347 default "" 348 ---help--- 349 The reset pin of SSD2828 chip. This takes a string in the format 350 understood by 'name_to_gpio' function, e.g. PH1 for pin 1 of port H. 351 352config VIDEO_LCD_HITACHI_TX18D42VM 353 bool "Hitachi tx18d42vm LVDS LCD panel support" 354 depends on VIDEO 355 default n 356 ---help--- 357 Support for Hitachi tx18d42vm LVDS LCD panels, these panels have a 358 lcd controller which needs to be initialized over SPI, once that is 359 done they work like a regular LVDS panel. 360 361config VIDEO_LCD_SPI_CS 362 string "SPI CS pin for LCD related config job" 363 depends on VIDEO_LCD_SSD2828 || VIDEO_LCD_HITACHI_TX18D42VM 364 default "" 365 ---help--- 366 This is one of the SPI communication pins, involved in setting up a 367 working LCD configuration. The exact role of SPI may differ for 368 different hardware setups. The option takes a string in the format 369 understood by 'name_to_gpio' function, e.g. PH1 for pin 1 of port H. 370 371config VIDEO_LCD_SPI_SCLK 372 string "SPI SCLK pin for LCD related config job" 373 depends on VIDEO_LCD_SSD2828 || VIDEO_LCD_HITACHI_TX18D42VM 374 default "" 375 ---help--- 376 This is one of the SPI communication pins, involved in setting up a 377 working LCD configuration. The exact role of SPI may differ for 378 different hardware setups. The option takes a string in the format 379 understood by 'name_to_gpio' function, e.g. PH1 for pin 1 of port H. 380 381config VIDEO_LCD_SPI_MOSI 382 string "SPI MOSI pin for LCD related config job" 383 depends on VIDEO_LCD_SSD2828 || VIDEO_LCD_HITACHI_TX18D42VM 384 default "" 385 ---help--- 386 This is one of the SPI communication pins, involved in setting up a 387 working LCD configuration. The exact role of SPI may differ for 388 different hardware setups. The option takes a string in the format 389 understood by 'name_to_gpio' function, e.g. PH1 for pin 1 of port H. 390 391config VIDEO_LCD_SPI_MISO 392 string "SPI MISO pin for LCD related config job (optional)" 393 depends on VIDEO_LCD_SSD2828 394 default "" 395 ---help--- 396 This is one of the SPI communication pins, involved in setting up a 397 working LCD configuration. The exact role of SPI may differ for 398 different hardware setups. If wired up, this pin may provide additional 399 useful functionality. Such as bi-directional communication with the 400 hardware and LCD panel id retrieval (if the panel can report it). The 401 option takes a string in the format understood by 'name_to_gpio' 402 function, e.g. PH1 for pin 1 of port H. 403 404config VIDEO_MVEBU 405 bool "Armada XP LCD controller" 406 default n 407 ---help--- 408 Support for the LCD controller integrated in the Marvell 409 Armada XP SoC. 410 411config VIDEO_OMAP3 412 bool "Enable OMAP3+ DSS Support" 413 depends on ARCH_OMAP2PLUS 414 help 415 This enables the Display subsystem (DSS) on OMAP3+ boards. 416 417config I2C_EDID 418 bool "Enable EDID library" 419 default n 420 help 421 This enables library for accessing EDID data from an LCD panel. 422 423config DISPLAY 424 bool "Enable Display support" 425 depends on DM 426 default n 427 select I2C_EDID 428 help 429 This supports drivers that provide a display, such as eDP (Embedded 430 DisplayPort) and HDMI (High Definition Multimedia Interface). 431 The devices provide a simple interface to start up the display, 432 read display information and enable it. 433 434config ATMEL_HLCD 435 bool "Enable ATMEL video support using HLCDC" 436 depends on DM_VIDEO 437 help 438 HLCDC supports video output to an attached LCD panel. 439 440config LOGICORE_DP_TX 441 bool "Enable Logicore DP TX driver" 442 depends on DISPLAY 443 help 444 Enable the driver for the transmitter part of the Xilinx LogiCORE 445 DisplayPort, a IP core for Xilinx FPGAs that implements a DisplayPort 446 video interface as defined by VESA DisplayPort v1.2. 447 448 Note that this is a pure transmitter device, and has no display 449 capabilities by itself. 450 451config VIDEO_BROADWELL_IGD 452 bool "Enable Intel Broadwell integrated graphics device" 453 depends on X86 454 help 455 This enables support for integrated graphics on Intel broadwell 456 devices. Initialisation is mostly performed by a VGA boot ROM, with 457 some setup handled by U-Boot itself. The graphics adaptor works as 458 a VESA device and supports LCD panels, eDP and LVDS outputs. 459 Configuration of most aspects of device operation is performed using 460 a special tool which configures the VGA ROM, but the graphics 461 resolution can be selected in U-Boot. 462 463config VIDEO_IVYBRIDGE_IGD 464 bool "Enable Intel Ivybridge integration graphics support" 465 depends on X86 466 help 467 This enables support for integrated graphics on Intel ivybridge 468 devices. Initialisation is mostly performed by a VGA boot ROM, with 469 some setup handled by U-Boot itself. The graphics adaptor works as 470 a VESA device and supports LCD panels, eDP and LVDS outputs. 471 Configuration of most aspects of device operation is performed using 472 a special tool which configures the VGA ROM, but the graphics 473 resolution can be selected in U-Boot. 474 475config VIDEO_FSL_DCU_FB 476 bool "Enable Freescale Display Control Unit" 477 depends on VIDEO 478 help 479 This enables support for Freescale Display Control Unit (DCU4) 480 module found on Freescale Vybrid and QorIQ family of SoCs. 481 482config VIDEO_FSL_DCU_MAX_FB_SIZE_MB 483 int "Freescale DCU framebuffer size" 484 depends on VIDEO_FSL_DCU_FB 485 default 4194304 486 help 487 Set maximum framebuffer size to be used for Freescale Display 488 Controller Unit (DCU4). 489 490source "drivers/video/rockchip/Kconfig" 491 492config VIDEO_SANDBOX_SDL 493 bool "Enable sandbox video console using SDL" 494 depends on SANDBOX 495 help 496 When using sandbox you can enable an emulated LCD display which 497 appears as an SDL (Simple DirectMedia Layer) window. This is a 498 console device and can display stdout output. Within U-Boot is is 499 a normal bitmap display and can display images as well as text. 500 501source "drivers/video/stm32/Kconfig" 502 503config VIDEO_TEGRA20 504 bool "Enable LCD support on Tegra20" 505 depends on OF_CONTROL 506 help 507 Tegra20 supports video output to an attached LCD panel as well as 508 other options such as HDMI. Only the LCD is supported in U-Boot. 509 This option enables this support which can be used on devices which 510 have an LCD display connected. 511 512config VIDEO_TEGRA124 513 bool "Enable video support on Tegra124" 514 depends on DM_VIDEO 515 help 516 Tegra124 supports many video output options including eDP and 517 HDMI. At present only eDP is supported by U-Boot. This option 518 enables this support which can be used on devices which 519 have an eDP display connected. 520 521source "drivers/video/bridge/Kconfig" 522 523config VIDEO 524 bool "Enable legacy video support" 525 depends on !DM_VIDEO 526 help 527 Define this for video support, without using driver model. Some 528 drivers use this because they are not yet converted to driver 529 model. Video drivers typically provide a colour text console and 530 cursor. 531 532config VIDEO_IPUV3 533 bool "i.MX IPUv3 Core video support" 534 depends on VIDEO && MX6 535 help 536 This enables framebuffer driver for i.MX processors working 537 on the IPUv3(Image Processing Unit) internal graphic processor. 538 539config CFB_CONSOLE 540 bool "Enable colour frame buffer console" 541 depends on VIDEO 542 default y if VIDEO 543 help 544 Enables the colour frame buffer driver. This supports colour 545 output on a bitmap display from an in-memory frame buffer. 546 Several colour devices are supported along with various options to 547 adjust the supported features. The driver is implemented in 548 cfb_console.c 549 550 The following defines are needed (cf. smiLynxEM, i8042) 551 VIDEO_FB_LITTLE_ENDIAN graphic memory organisation 552 (default big endian) 553 VIDEO_HW_RECTFILL graphic chip supports 554 rectangle fill (cf. smiLynxEM) 555 VIDEO_HW_BITBLT graphic chip supports 556 bit-blit (cf. smiLynxEM) 557 VIDEO_VISIBLE_COLS visible pixel columns (cols=pitch) 558 VIDEO_VISIBLE_ROWS visible pixel rows 559 VIDEO_PIXEL_SIZE bytes per pixel 560 VIDEO_DATA_FORMAT graphic data format 561 (0-5, cf. cfb_console.c) 562 VIDEO_FB_ADRS framebuffer address 563 VIDEO_KBD_INIT_FCT keyboard int fct (i.e. rx51_kp_init()) 564 VIDEO_TSTC_FCT test char fct (i.e. rx51_kp_tstc) 565 VIDEO_GETC_FCT get char fct (i.e. rx51_kp_getc) 566 CONFIG_VIDEO_LOGO display Linux logo in upper left corner 567 CONFIG_VIDEO_BMP_LOGO use bmp_logo.h instead of linux_logo.h 568 for logo. Requires CONFIG_VIDEO_LOGO 569 CONFIG_CONSOLE_EXTRA_INFO 570 additional board info beside 571 the logo 572 CONFIG_HIDE_LOGO_VERSION 573 do not display bootloader 574 version string 575 576 When CONFIG_CFB_CONSOLE is defined, the video console is the 577 default console. The serial console can be forced by setting the 578 environment 'console=serial'. 579 580config CFB_CONSOLE_ANSI 581 bool "Support ANSI escape sequences" 582 depends on CFB_CONSOLE 583 help 584 This allows the colour buffer frame buffer driver to support 585 a limited number of ANSI escape sequences (cursor control, 586 erase functions and limited graphics rendition control). Normal 587 output from U-Boot will pass through this filter. 588 589config VGA_AS_SINGLE_DEVICE 590 bool "Set the video as an output-only device" 591 depends on CFB_CONSOLE 592 default y 593 help 594 If enable the framebuffer device will be initialized as an 595 output-only device. The Keyboard driver will not be set up. This 596 may be used if you have no keyboard device, or more than one 597 (USB Keyboard, AT Keyboard). 598 599config VIDEO_SW_CURSOR 600 bool "Enable a software cursor" 601 depends on CFB_CONSOLE 602 default y if CFB_CONSOLE 603 help 604 This draws a cursor after the last character. No blinking is 605 provided. This makes it possible to see the current cursor 606 position when entering text on the console. It is recommended to 607 enable this. 608 609config CONSOLE_EXTRA_INFO 610 bool "Display additional board information" 611 depends on CFB_CONSOLE 612 help 613 Display additional board information strings that normally go to 614 the serial port. When this option is enabled, a board-specific 615 function video_get_info_str() is called to get the string for 616 each line of the display. The function should return the string, 617 which can be empty if there is nothing to display for that line. 618 619config CONSOLE_SCROLL_LINES 620 int "Number of lines to scroll the console by" 621 depends on CFB_CONSOLE || DM_VIDEO || LCD 622 default 1 623 help 624 When the console need to be scrolled, this is the number of 625 lines to scroll by. It defaults to 1. Increasing this makes the 626 console jump but can help speed up operation when scrolling 627 is slow. 628 629config SYS_CONSOLE_BG_COL 630 hex "Background colour" 631 depends on CFB_CONSOLE 632 default 0x00 633 help 634 Defines the background colour for the console. The value is from 635 0x00 to 0xff and the meaning depends on the graphics card. 636 Typically, 0x00 means black and 0xff means white. Do not set 637 the background and foreground to the same colour or you will see 638 nothing. 639 640config SYS_CONSOLE_FG_COL 641 hex "Foreground colour" 642 depends on CFB_CONSOLE 643 default 0xa0 644 help 645 Defines the foreground colour for the console. The value is from 646 0x00 to 0xff and the meaning depends on the graphics card. 647 Typically, 0x00 means black and 0xff means white. Do not set 648 the background and foreground to the same colour or you will see 649 nothing. 650 651config LCD 652 bool "Enable legacy LCD support" 653 help 654 Define this to enable LCD support (for output to LCD display). 655 You will also need to select an LCD driver using an additional 656 CONFIG option. See the README for details. Drives which have been 657 converted to driver model will instead used CONFIG_DM_VIDEO. 658 659config VIDEO_DW_HDMI 660 bool 661 help 662 Enables the common driver code for the Designware HDMI TX 663 block found in SoCs from various vendors. 664 As this does not provide any functionality by itself (but 665 rather requires a SoC-specific glue driver to call it), it 666 can not be enabled from the configuration menu. 667 668config VIDEO_SIMPLE 669 bool "Simple display driver for preconfigured display" 670 help 671 Enables a simple generic display driver which utilizes the 672 simple-framebuffer devicetree bindings. 673 674 This driver assumes that the display hardware has been initialized 675 before u-boot starts, and u-boot will simply render to the pre- 676 allocated frame buffer surface. 677 678config VIDEO_DT_SIMPLEFB 679 bool "Enable SimpleFB support for passing framebuffer to OS" 680 help 681 Enables the code to pass the framebuffer to the kernel as a 682 simple framebuffer in the device tree. 683 The video output is initialized by U-Boot, and kept by the 684 kernel. 685 686endmenu 687