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splash screen support in bootloader @Blaze board using HDMI

jun ma1
Prodigy 150 points

Hi ,all

I‘m working on display in bootloader using HDMI interface, but I have some problems:

(1)  what mode dose the HDMI_HPD singal  to be config? mode0 or mode 3 for gpio ? and  I have try both,  but neither of them can detect the HDMI connector, How dose this happen?

(2)  my codes refer to Hdmi.c from  kernel driver, when I set the  DSS_CTRL's bit15 VENC_HDMI_SWITCH to 1 for HDMI Selected,   the Status register show the operation dosen't  work 。 

so   how can I detect the connect through HDMI HPD singal, and Select HDMI sync and clock in DSS_CTRL?