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Linux/AM3358: HDMI splash screen in U-boot

Part Number: AM3358

Tool/software: Linux

I'm attempting something very similar to (https://e2e.ti.com/support/processors/f/791/t/782759?tisearch=e2e-quicksearch&keymatch=am335x%20splash). I'm using a BeagleBoneBlack and attempting to output a splash screen to connected HDMI screen. I find quite a bit on splash images for LCD, but can't find any solid information on how to setup/utilize the HDMI port. Is it not possible to initialize and drive the necessary chips, or am I just overlooking something. Thank you for any info!