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DTC: non-existing node

suppamax

Hi everybody,

I'd like to write a linux application for microzed.
The Zynq will also use some logic in PL, in particular an AXI_DMA a custom IP (AXI_counter) streaming data to it.

I generated the DTS following this wiki: http://www.wiki.xilinx.com/Build+Device+Tree+Blob

The problem is that when I try to generate the device tree blob I got this error

>dtc -I dts -O dtb -o xilinx.dtb xilinx.dts
ERROR (phandle_references): Reference to non-existent node or label "AXI_counter_0"

ERROR (phandle_references): Reference to non-existent node or label "AXI_counter_0"

ERROR: Input tree has errors, aborting (use -f to force output)


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    Hi zedhead,

    thank you for your comment.
    I still didn't read your tutorial, I'll do it in the next days.

    I have a very stupid question though: do I really need a driver for my IP?
    My simple application is:
    - the AXI counter stream data (like 0, 1, 2, 3, 4...) to the AXI DMA
    - the SW configures the DMA to instruct it about where to store data

    Now, I know this can be easily done with a bare metal application, but I need to do this in Linux as an exercise - I will have to manage a more complex project later on.

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  • 0

    Hi zedhead,

    thank you for your comment.
    I still didn't read your tutorial, I'll do it in the next days.

    I have a very stupid question though: do I really need a driver for my IP?
    My simple application is:
    - the AXI counter stream data (like 0, 1, 2, 3, 4...) to the AXI DMA
    - the SW configures the DMA to instruct it about where to store data

    Now, I know this can be easily done with a bare metal application, but I need to do this in Linux as an exercise - I will have to manage a more complex project later on.

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