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linux crash after PL load

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I have made a simple hardware design for the PL. I can load it with either JTAG or by cat'ing the file into xdevcfg. Once the hardware is loaded, it functions properly. Howver, all contact with the PS (running Linux) is gone. No terminal, no ethernet. Is it not possible to just load a bit file with no reference to the processor? Looking in the UCF there doesn't appear to be any reference to any processor specific IOs. I'm guessing that I need to route some PS dedicated pins to some specific hardware pins, but I would have thought that could be done without anything loaded into the PL at all. Any insight would be appreciated.

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    Did you ever solve this problem?  Part of me thinks that it is because whenever I load the bit files for the FPGA (PL) and PS i bypass the PS (ARM) in iMPACT because I can't find the correct configuration file.  I am assuming that this will do nothing at all to the currect configuration of the PS/arm processor but it could be that programming in any way resets everything and that in order to have linux be reloaded it must be set in the configuration under the ARM PROCESSOR portion of the JTAG chain in iMPACT or whatever else you may be using to program it.

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    Did you ever solve this problem?  Part of me thinks that it is because whenever I load the bit files for the FPGA (PL) and PS i bypass the PS (ARM) in iMPACT because I can't find the correct configuration file.  I am assuming that this will do nothing at all to the currect configuration of the PS/arm processor but it could be that programming in any way resets everything and that in order to have linux be reloaded it must be set in the configuration under the ARM PROCESSOR portion of the JTAG chain in iMPACT or whatever else you may be using to program it.

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