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Visitor
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Registered: ‎05-12-2020

Problem of using XDMA through PL PCIe on htg-z920 (mpsoc)

Hi,

We want to read and write the card's DMA through PCIe

There are some problems we met.

1. Is it okay for us to use XDMA to achieve this goal?

2. Why does the XDMA interrupt_out affect kernel booting? And how can we debug?

After kernel config the following item

Bus support 
   -> PCI host controller drivers 
      -> Xilinx XDMA PL PCIe host bridge support

 Kernel booting will hang up on the console_init()

[    0.011919] Console: colour dummy device 80x25
[    0.016302] console [tty0] enabled
[    0.019670] bootconsole [cdns0] disabled

 

Thanks

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