The solution, as far as I can observe, is: it makes a difference whether the system initially starts from a BOOT.BIN that does contain PL logic or it starts from a BOOT.BIN that does not contain PL logic. In that first case, PS will always hang/die as soon as /dev/xdevcfg is loaded, in the latter case loading new PL at runtime is no problem. So we will start the system with PS-only BOOT.BIN, then load PL from Linux, then run the application.
Further, we switched to git://github.com/Xilinx/linux-xlnx.git for now, though there is no audio support with it. I'm not sure, whether this helped in solving the /dev/xdevcfg related problems, and we will check the https://github.com/analogdevicesinc/linux/tree/audio_zynq kernel again, as soon as we get back to solve audio access.
The solution, as far as I can observe, is: it makes a difference whether the system initially starts from a BOOT.BIN that does contain PL logic or it starts from a BOOT.BIN that does not contain PL logic. In that first case, PS will always hang/die as soon as /dev/xdevcfg is loaded, in the latter case loading new PL at runtime is no problem. So we will start the system with PS-only BOOT.BIN, then load PL from Linux, then run the application.
Further, we switched to git://github.com/Xilinx/linux-xlnx.git for now, though there is no audio support with it. I'm not sure, whether this helped in solving the /dev/xdevcfg related problems, and we will check the https://github.com/analogdevicesinc/linux/tree/audio_zynq kernel again, as soon as we get back to solve audio access.
