u-boot-brain/doc/device-tree-bindings/video/sandbox-fb.txt

Sandbox LCD
===========

This uses the displaymode.txt binding except that only xres and yres are
required properties. Also an additional optional property is defined:

log2-depth: Log base 2 of the U-Boot display buffer depth (4=16bpp, 5=32bpp).
	If not provided, a value of 4 is used.

Example:

	lcd {
		compatible = "sandbox,lcd-sdl";
		xres = <800>;
		yres = <600>;
		log2-depth = <5>;
	};
sandbox: Add LCD driver Add a simple LCD driver which uses SDL to display the image. We update the image regularly, while still providing for reasonable performance. Adjust the common lcd code to support sandbox. For command-line runs we do not want the LCD to be displayed, so add a --show_lcd option to enable it. Tested-by: Che-Liang Chiou <clchiou@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org> 2014-02-28 05:26:19 +09:00			`Sandbox LCD`
			`===========`

			`This uses the displaymode.txt binding except that only xres and yres are`
sandbox: Support changing the LCD colour depth Add a new device-tree property to control the colour depth. At present we support 16bpp and 32bpp. While we are here, update the code to use livetree. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Anatolij Gustschin <agust@denx.de> 2020-02-03 23:36:14 +09:00			`required properties. Also an additional optional property is defined:`

			`log2-depth: Log base 2 of the U-Boot display buffer depth (4=16bpp, 5=32bpp).`
			`If not provided, a value of 4 is used.`
sandbox: Add LCD driver Add a simple LCD driver which uses SDL to display the image. We update the image regularly, while still providing for reasonable performance. Adjust the common lcd code to support sandbox. For command-line runs we do not want the LCD to be displayed, so add a --show_lcd option to enable it. Tested-by: Che-Liang Chiou <clchiou@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org> 2014-02-28 05:26:19 +09:00
			`Example:`

			`lcd {`
			`compatible = "sandbox,lcd-sdl";`
			`xres = <800>;`
			`yres = <600>;`
sandbox: Support changing the LCD colour depth Add a new device-tree property to control the colour depth. At present we support 16bpp and 32bpp. While we are here, update the code to use livetree. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Anatolij Gustschin <agust@denx.de> 2020-02-03 23:36:14 +09:00			`log2-depth = <5>;`
sandbox: Add LCD driver Add a simple LCD driver which uses SDL to display the image. We update the image regularly, while still providing for reasonable performance. Adjust the common lcd code to support sandbox. For command-line runs we do not want the LCD to be displayed, so add a --show_lcd option to enable it. Tested-by: Che-Liang Chiou <clchiou@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org> 2014-02-28 05:26:19 +09:00			`};`