1config VIDEO_VESA 2 bool "Enable VESA video driver support" 3 depends on X86 4 default n 5 help 6 Turn on this option to enable a very simple driver which uses vesa 7 to discover the video mode and then provides a frame buffer for use 8 by U-Boot. This can in principle be used with any platform that 9 supports PCI and video cards that support VESA BIOS Extension (VBE). 10 11config VIDEO_LCD_SSD2828 12 bool "SSD2828 bridge chip" 13 default n 14 ---help--- 15 Support for the SSD2828 bridge chip, which can take pixel data coming 16 from a parallel LCD interface and translate it on the fly into MIPI DSI 17 interface for driving a MIPI compatible LCD panel. It uses SPI for 18 configuration. 19 20config VIDEO_LCD_SSD2828_TX_CLK 21 int "SSD2828 TX_CLK frequency (in MHz)" 22 depends on VIDEO_LCD_SSD2828 23 default 0 24 ---help--- 25 The frequency of the crystal, which is clocking SSD2828. It may be 26 anything in the 8MHz-30MHz range and the exact value should be 27 retrieved from the board schematics. Or in the case of Allwinner 28 hardware, it can be usually found as 'lcd_xtal_freq' variable in 29 FEX files. It can be also set to 0 for selecting PCLK from the 30 parallel LCD interface instead of TX_CLK as the PLL clock source. 31 32config VIDEO_LCD_SSD2828_RESET 33 string "RESET pin of SSD2828" 34 depends on VIDEO_LCD_SSD2828 35 default "" 36 ---help--- 37 The reset pin of SSD2828 chip. This takes a string in the format 38 understood by 'name_to_gpio' function, e.g. PH1 for pin 1 of port H. 39 40config VIDEO_LCD_HITACHI_TX18D42VM 41 bool "Hitachi tx18d42vm LVDS LCD panel support" 42 depends on VIDEO 43 default n 44 ---help--- 45 Support for Hitachi tx18d42vm LVDS LCD panels, these panels have a 46 lcd controller which needs to be initialized over SPI, once that is 47 done they work like a regular LVDS panel. 48 49config VIDEO_LCD_SPI_CS 50 string "SPI CS pin for LCD related config job" 51 depends on VIDEO_LCD_SSD2828 || VIDEO_LCD_HITACHI_TX18D42VM 52 default "" 53 ---help--- 54 This is one of the SPI communication pins, involved in setting up a 55 working LCD configuration. The exact role of SPI may differ for 56 different hardware setups. The option takes a string in the format 57 understood by 'name_to_gpio' function, e.g. PH1 for pin 1 of port H. 58 59config VIDEO_LCD_SPI_SCLK 60 string "SPI SCLK pin for LCD related config job" 61 depends on VIDEO_LCD_SSD2828 || VIDEO_LCD_HITACHI_TX18D42VM 62 default "" 63 ---help--- 64 This is one of the SPI communication pins, involved in setting up a 65 working LCD configuration. The exact role of SPI may differ for 66 different hardware setups. The option takes a string in the format 67 understood by 'name_to_gpio' function, e.g. PH1 for pin 1 of port H. 68 69config VIDEO_LCD_SPI_MOSI 70 string "SPI MOSI pin for LCD related config job" 71 depends on VIDEO_LCD_SSD2828 || VIDEO_LCD_HITACHI_TX18D42VM 72 default "" 73 ---help--- 74 This is one of the SPI communication pins, involved in setting up a 75 working LCD configuration. The exact role of SPI may differ for 76 different hardware setups. The option takes a string in the format 77 understood by 'name_to_gpio' function, e.g. PH1 for pin 1 of port H. 78 79config VIDEO_LCD_SPI_MISO 80 string "SPI MISO pin for LCD related config job (optional)" 81 depends on VIDEO_LCD_SSD2828 82 default "" 83 ---help--- 84 This is one of the SPI communication pins, involved in setting up a 85 working LCD configuration. The exact role of SPI may differ for 86 different hardware setups. If wired up, this pin may provide additional 87 useful functionality. Such as bi-directional communication with the 88 hardware and LCD panel id retrieval (if the panel can report it). The 89 option takes a string in the format understood by 'name_to_gpio' 90 function, e.g. PH1 for pin 1 of port H. 91