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Splash Screen
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---------------------------------------------------------------------
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The splash_screen_prepare() function is a weak function defined in
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common/splash.c. It is called as part of the splash screen display
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sequence. It gives the board an opportunity to prepare the splash
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image data before it is processed and sent to the frame buffer by
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U-Boot. Define your own version to use this feature.
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CONFIG_SPLASH_SOURCE
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Use the splash_source.c library. This library provides facilities to declare
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board specific splash image locations, routines for loading splash image from
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supported locations, and a way of controlling the selected splash location
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using the "splashsource" environment variable.
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splashsource works as follows:
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- If splashsource is set to a supported location name as defined by board code,
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use that splash location.
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- If splashsource is undefined, use the first splash location as default.
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- If splashsource is set to an unsupported value, do not load a splash screen.
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