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| Splash Screen | |
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| 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 | |
| U-Boot. Define your own version to use this feature. | |
| 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. | |
| 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 | |
| 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. |