option compiles in the video uclass and routes all LCD/video access
through this.
+config BACKLIGHT_PWM
+ bool "Generic PWM based Backlight Driver"
+ depends on DM_VIDEO && DM_PWM
+ default y
+ help
+ If you have a LCD backlight adjustable by PWM, say Y to enable
+ this driver.
+ This driver can be use with "simple-panel" and
+ it understands the standard device tree
+ (leds/backlight/pwm-backlight.txt)
+
+config BACKLIGHT_GPIO
+ bool "Generic GPIO based Backlight Driver"
+ depends on DM_VIDEO
+ help
+ If you have a LCD backlight adjustable by GPIO, say Y to enable
+ this driver.
+ This driver can be used with "simple-panel" and
+ it understands the standard device tree
+ (leds/backlight/gpio-backlight.txt)
+
config VIDEO_BPP8
bool "Support 8-bit-per-pixel displays"
depends on DM_VIDEO
this option, such displays will not be supported and console output
will be empty.
+config VIDEO_ANSI
+ bool "Support ANSI escape sequences in video console"
+ depends on DM_VIDEO
+ default y if DM_VIDEO
+ help
+ Enable ANSI escape sequence decoding for a more fully functional
+ console.
+
config CONSOLE_NORMAL
bool "Support a simple text console"
depends on DM_VIDEO
better in low-light situations or to reduce eye strain in some
cases.
+config NO_FB_CLEAR
+ bool "Skip framebuffer clear"
+ help
+ If firmware (whatever loads u-boot) has already put a splash image
+ on screen, you might want to preserve it until whatever u-boot
+ loads takes over the screen. This, for example, can be used to
+ keep splash image on screen until grub graphical boot menu starts.
+
source "drivers/video/fonts/Kconfig"
config VIDCONSOLE_AS_LCD
coreboot already. This can in principle be used with any platform
that coreboot supports.
+config VIDEO_EFI
+ bool "Enable EFI framebuffer driver support"
+ depends on EFI_STUB
+ help
+ Turn on this option to enable a framebuffeer driver when U-Boot is
+ loaded as a payload (see README.u-boot_on_efi) by an EFI BIOS where
+ the graphics device is configured by the EFI BIOS already. This can
+ in principle be used with any platform that has an EFI BIOS.
+
config VIDEO_VESA
bool "Enable VESA video driver support"
default n
choice
prompt "framebuffer graphics resolution"
- default FRAMEBUFFER_VESA_MODE_117
+ default FRAMEBUFFER_VESA_MODE_118
depends on FRAMEBUFFER_SET_VESA_MODE
help
This option sets the resolution used for the U-Boot framebuffer (and
console device and can display stdout output. Within U-Boot is is
a normal bitmap display and can display images as well as text.
+source "drivers/video/stm32/Kconfig"
+
config VIDEO_TEGRA20
bool "Enable LCD support on Tegra20"
depends on OF_CONTROL
console jump but can help speed up operation when scrolling
is slow.
-config VIDEO_CT69000
- bool "Enable Chips & Technologies 69000 video driver"
- depends on VIDEO
- help
- This enables a frame buffer driver for the Chips & Technologies
- ct69000, a fairly old graphics device (circa 2000) which is used
- on some hardware. It operates over the ISA bus, and supports
- some acceleration features.
-
- For the CT69000 and SMI_LYNXEM drivers, videomode is
- selected via environment 'videomode'. Two different ways
- are possible:
- - "videomode=num" 'num' is a standard LiLo mode numbers.
- Following standard modes are supported (* is default):
-
- Colors 640x480 800x600 1024x768 1152x864 1280x1024
- -------------+---------------------------------------------
- 8 bits | 0x301* 0x303 0x305 0x161 0x307
- 15 bits | 0x310 0x313 0x316 0x162 0x319
- 16 bits | 0x311 0x314 0x317 0x163 0x31A
- 24 bits | 0x312 0x315 0x318 ? 0x31B
- -------------+---------------------------------------------
- (i.e. setenv videomode 317; saveenv; reset;)
-
- - "videomode=bootargs" all the video parameters are parsed
- from the bootargs. (See drivers/video/videomodes.c)
-
config SYS_CONSOLE_BG_COL
hex "Background colour"
- depends on CFB_CONSOLE || VIDEO_CT69000
+ depends on CFB_CONSOLE
default 0x00
help
Defines the background colour for the console. The value is from
config SYS_CONSOLE_FG_COL
hex "Foreground colour"
- depends on CFB_CONSOLE || VIDEO_CT69000
+ depends on CFB_CONSOLE
default 0xa0
help
Defines the foreground colour for the console. The value is from
rather requires a SoC-specific glue driver to call it), it
can not be enabled from the configuration menu.
+config VIDEO_SIMPLE
+ bool "Simple display driver for preconfigured display"
+ help
+ Enables a simple generic display driver which utilizes the
+ simple-framebuffer devicetree bindings.
+
+ This driver assumes that the display hardware has been initialized
+ before u-boot starts, and u-boot will simply render to the pre-
+ allocated frame buffer surface.
+
+config VIDEO_DT_SIMPLEFB
+ bool "Enable SimpleFB support for passing framebuffer to OS"
+ help
+ Enables the code to pass the framebuffer to the kernel as a
+ simple framebuffer in the device tree.
+ The video output is initialized by U-Boot, and kept by the
+ kernel.
+
endmenu