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mx53 qsb dual output: hdmi kills ethernet

Question asked by koobla on Nov 8, 2012
Branched to a new discussion

Hi all,

I have set up my qsb over the last few days and it works nicely with the mcimx-lvds1 and vga output in dual and separate modes (imx-2.6.35_11.09 plus the  201112 patches applied). It boots nicely with the standard tftp+nfs setup until the HDMI daughter board arrived (I need to setup HDMI+LVDS, independent views):

 

Whenever I try to enable HDMI output with LVDS (tried with LVDS attached, without LVDS, widh and without DVI / HDMI monitors), the kernel does not boot into user space as initializing the ethernet controller fails. It does boot into the mmc image, though - cf. the boot log that I attached.

 

Kernel command line: console=tty1 console=ttymxc0,115200 setenv bootargs console=ttymxc0,115200 video=mxcdi0fb:RGB24,1024x768M@60 hdmi di0_primary video=mxcdi1fb:RGB24,1024x768M@60 ldb=di0 lvds debug loglevel=8 dmfc=3

 

I already started tracing signal lines on the daughter board to see if there could be any conflicts, but no luck so far.

Any ideas on this?

Simon

 

 

Original Attachment has been moved to: boot.txt.zip

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