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linux crash after PL load

Former Member

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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    If you want to run linux and a custom bit file on the PS then:
    1. boot Linux without any hardware ip in PS (no AXI based peripheral)
    2. after linux boots load bit file through jtag
    3. then run linux application by downloading elf file to linux file system using remote ARM run app.
    Note: This is only to test PS & PL independently.
    Ideally before Linux would start booting. all peripherals on PL should be ideally present. Does this make sense?

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  • 0

    If you want to run linux and a custom bit file on the PS then:
    1. boot Linux without any hardware ip in PS (no AXI based peripheral)
    2. after linux boots load bit file through jtag
    3. then run linux application by downloading elf file to linux file system using remote ARM run app.
    Note: This is only to test PS & PL independently.
    Ideally before Linux would start booting. all peripherals on PL should be ideally present. Does this make sense?

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  • 0 in reply to Former Member

    I know this thread has been inactive for a long time, but I want to revive it.

    If I allow the FSBL to load the PL and then later reload the PL using JTAG I always get a Linux crash. I have even tried taking the standard bit files from the reference design and using them.

    I'm interested in two things: First, I want to be able to reconfigure the PL at will. And second, the process of placing the bit file into the image for the FSBL is a bit time consuming.

    Has anyone been able to reconfigure the PL under Linux without a crash?