How to edit device tree from arch/arm64/boot/dts/xilinx

[noelpedro]

Environment (please complete the following information):

• Project to build: adrv9009 zu11eg fmcomms8
• Petalinux version: 2021.1
• HDL branch: master
• META-ADI branch: master
• Using meta-adi petalinux docker image? yes

Describe the bug A clear and concise description of what the bug is. Not a bug with meta-adi build, but I needed to potentially make a change in the dts file zynqmp-adrv9009-zu11eg-revb-adrv2crr-fmc-revb-sync-fmcomms8.dts because in the node

&rx_dma_channel {
    adi,source-bus-width = <256>;
    adi,destination-bus-width = <256>;
};

the destination bits size reads 256 however the hdl reads 128 bits. The max bits from PL to PS via slave HP is 128 bits so I cant change this to 256 in the hdl.

Screenshots If applicable, add screenshots to help explain your problem.

Additional context Add any other context about the problem here.

Im currently getting iio_create_buffer errors (i,e. Could not create RX buffer: Cannot allocate memory). And was concerned if the above was the reason why.

[nunojsa]

Hi,

Take a look at extending-the-devicetree. Just change that in system_user.dtsi and it should work.