Raspberry pi not working with latest compiler and rtems-git

[Alan Cudmore]

Hi Pavel,
I can confirm that your branch and the RTEMS git head work on my Pi A+ and Pi Zero now. 

The console works when connected. For me, it will not automatically switch to the serial port if the HDMI cable is not connected. I have to comment out the cmdline.txt console switches. 

The Pi 2 works too, but with the older firmware. I still need to debug that. 

At least I can get back to trying the recently submitted SPI code.

Thanks,
Alan


> On Jun 21, 2016, at 7:24 PM, Pavel Pisa <ppisa4lists at pikron.com> wrote:
> 
> Hello Alan,
> 
> On Wednesday 22 of June 2016 01:00:39 Alan Cudmore wrote:
>> Hi Pavel,
>> The HDMI Console! I do have it enabled, so I’m sure that’s it.
>> You saved me a lot of time.
>> Thanks,
>> Alan
> 
> but at least on my board/setup when RPi HDMI connector
> is not connected to monitor then console is not switches/
> ticker output continues on the serial port.
> 
> The detection is little hacky/comparison with know default
> width/height.
> 
> So if you do not have connected monitor output should
> work. Or your board reports different state/resolution
> in disconnected case.
> 
> It would be much better if some firmware function
> is know to explicitly report monitor is/is not connected.
> But Get EDID block functions describes that it returns
> one block unconditionally
> 
> https://github.com/raspberrypi/firmware/wiki/Mailbox-property-interface
> 
> If it could report error if monitor is not connected
> then it would be better. It would worth to test that
> wit different firmwares and monitors connected/disconnected
> in future.
> 
> Best wishes,
> 
>              Pavel
>