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u-boot/doc/README.splashprepare

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video: lcd: Make splash_screen_prepare weak, remove config macro Remove CONFIG_SPLASH_SCREEN_PREPARE from README Add doc/README.splashprepare to document functionality Signed-off-by: Robert Winkler <robert.winkler@boundarydevices.com> Acked-by: Igor Grinberg <grinberg@compulab.co.il>
2013-06-18 02:31:30 +08:00
---------------------------------------------------------------------
Splash Screen
---------------------------------------------------------------------
The splash_screen_prepare() function is a weak function defined in
common/splash.c. It is called as part of the splash screen display
sequence. It gives the board an opportunity to prepare the splash
image data before it is processed and sent to the frame buffer by
splash: add support for loading splash from a FIT image Enable support for loading a splash image from within a FIT image. The image is assumed to be generated with mkimage -E flag to hold the data external to the FIT. Signed-off-by: Tomas Melin <tomas.melin@vaisala.com> Acked-by: Igor Grinberg <grinberg@compulab.co.il>
2017-01-13 19:20:14 +08:00
U-Boot. Define your own version to use this feature.
common: convert compulab splash load code to common code Move board/compulab/common/splash.c code to common/splash_source.c to make it available for everybody. This move renames cl_splash_screen_prepare() to splash_source_load(), and the compilation of this code is conditional on CONFIG_SPLASH_SOURCE. splash_source features: * Provide a standardized way for declaring board specific splash screen locations * Provide existing routines for auto loading the splash image from the locations as declared by the board * Introduce the "splashsource" environment variable, which makes it possible to select the splash image source. cm-t35 and cm-fx6 are updated to use the modified version. Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il> Cc: Stefano Babic <sbabic@denx.de> Cc: Tom Rini <trini@ti.com> Cc: Igor Grinberg <grinberg@compulab.co.il> Cc: Anatolij Gustschin <agust@denx.de> Reviewed-by: Tom Rini <trini@ti.com> Acked-by: Igor Grinberg <grinberg@compulab.co.il>
2015-01-14 16:42:54 +08:00
CONFIG_SPLASH_SOURCE
Use the splash_source.c library. This library provides facilities to declare
board specific splash image locations, routines for loading splash image from
supported locations, and a way of controlling the selected splash location
using the "splashsource" environment variable.
splashsource works as follows:
- If splashsource is set to a supported location name as defined by board code,
use that splash location.
- If splashsource is undefined, use the first splash location as default.
- If splashsource is set to an unsupported value, do not load a splash screen.
splash_source: add support for filesystem formatted mmc Add support for loading splash image from an SD card formatted with a filesystem. Update boards to maintain original behavior where needed. Cc: Igor Grinberg <grinberg@compulab.co.il> Cc: Tom Rini <trini@konsulko.com> Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
2015-10-29 17:54:41 +08:00
splash: add support for loading splash from a FIT image Enable support for loading a splash image from within a FIT image. The image is assumed to be generated with mkimage -E flag to hold the data external to the FIT. Signed-off-by: Tomas Melin <tomas.melin@vaisala.com> Acked-by: Igor Grinberg <grinberg@compulab.co.il>
2017-01-13 19:20:14 +08:00
A splash source location can describe either storage with raw data, a storage
formatted with a file system or a FIT image. In case of a filesystem, the splash
screen data is loaded as a file. The name of the splash screen file can be
controlled with the environment variable "splashfile".
To enable loading the splash image from a FIT image, CONFIG_FIT must be
splash: Use splashfile instead of location->name The splash image could be loaded from different sources (e.g. sf, mmc) with different formats (e.g. raw, file-system). These sources are structured by a board dependent object 'splash_location'. To decide where is the splash image loaded, following environment variables are used to select the splash source and file: - 'splashsource' is used to select the splash source by setting its value to specified name of splash location. - 'splashfile' specify the name of splash image file But, when loads the splash image from FIT, the name of splash image within FIT is specified by splash location name. Due to the splash location name is already used for the splash source, its name may conflicts with the name of splash image. To solve the conflict, the environment variable 'splashfile' is used to specify the splash image in FIT, and keeps the splash location name for the splash source. Signed-off-by: Leo Ruan <tingquan.ruan@cn.bosch.com> Signed-off-by: Mark Jonas <mark.jonas@de.bosch.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Stefano Babic <sbabic@denx.de> Reviewed-by: Tomas Melin <tomas.melin@vaisala.com>
2019-02-08 17:51:35 +08:00
enabled. The FIT image has to start at the 'offset' field address in the
selected splash location. The name of splash image within the FIT shall be
specified by the environment variable "splashfile".
In case the environment variable "splashfile" is not defined the default name
'splash.bmp' will be used.
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