[Gta04-owner] Switching from RS232 to IrDA for debugging

[Sven Dyroff]

Hello Nikolaus,

I finally want to make my first steps in looking deeper into the GTA04 and 
therefor I need access to the serial port. After having taken a look into 
the schematics I still don't intend to open my GTA04 for this reason, 
because it seems that only one GPIO is to be toggled, so that we can 
connect _WIRELESS_ over IrDA to the UART of the OMAP.

Is it possible that you build a new MLO that sets this GPIO to zero? So we 
only need to replace this new MLO with the current one on the SD card and 
then can debug over IrDA. Whenever we don't want anymore to widespread our 
internal data into our environment for everyone, but want to save some 
battery power, we just need to replace the MLO again...  ;-))

This idea only as a first step. The more better solution would be, that 
the bootloader switches this GPIO according to the existence of a 
flag-file like "IrDa.flag" within the FAT filesystem. And of course the 
best solution would be to have the possibility to set or remove this 
flag-file with a button, presented by the bootloader...

Of couse I hope that currently the kernel doesn't set this GPIO. Am I 
right in this assumption?

Best regards
   Sven
 

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