2 bool "Enable VESA video driver support"
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).
11 config VIDEO_LCD_SSD2828
12 bool "SSD2828 bridge chip"
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
20 config VIDEO_LCD_SSD2828_TX_CLK
21 int "SSD2828 TX_CLK frequency (in MHz)"
22 depends on VIDEO_LCD_SSD2828
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.
32 config VIDEO_LCD_SSD2828_RESET
33 string "RESET pin of SSD2828"
34 depends on VIDEO_LCD_SSD2828
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.
40 config VIDEO_LCD_HITACHI_TX18D42VM
41 bool "Hitachi tx18d42vm LVDS LCD panel support"
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.
49 config VIDEO_LCD_SPI_CS
50 string "SPI CS pin for LCD related config job"
51 depends on VIDEO_LCD_SSD2828 || VIDEO_LCD_HITACHI_TX18D42VM
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.
59 config VIDEO_LCD_SPI_SCLK
60 string "SPI SCLK pin for LCD related config job"
61 depends on VIDEO_LCD_SSD2828 || VIDEO_LCD_HITACHI_TX18D42VM
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.
69 config VIDEO_LCD_SPI_MOSI
70 string "SPI MOSI pin for LCD related config job"
71 depends on VIDEO_LCD_SSD2828 || VIDEO_LCD_HITACHI_TX18D42VM
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.
79 config VIDEO_LCD_SPI_MISO
80 string "SPI MISO pin for LCD related config job (optional)"
81 depends on VIDEO_LCD_SSD2828
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.
93 bool "Enable DisplayPort support"
95 eDP (Embedded DisplayPort) is a standard widely used in laptops
96 to drive LCD panels. This framework provides support for enabling
97 these displays where supported by the video hardware.