FPGA manager and pl-custom.dtsi

Support
1

Hello!
I have question about pl-custom.dtsi and fpga manager.
How should I modify it to add extra properties to pl.dtsi fragments?
I googled this problem, but still no luck :
This is topic on Xilinx forum with this problem, but then I thought that PYNQ community would know more about overlays and fpga manager.
What doesn’t work… this is placed in pl-custom.dtsi

***************************************************************
/dts-v1/;
/ {
	&{/fragment@2/AXI_ZmodADC1410@43c00000} {
			compatible = "generic-uio";
		};
	};
***************************************************************
/dts-v1/;
/ {
	fragment@2 {
			target = <&amba>;
			overlay2: __overlay__ {
				ZmodADC_0_AXI_ZmodADC1410_1: AXI_ZmodADC1410@43c00000 {	
					compatible = "generic-uio";
				};
			};
	};
};
***************************************************************
/dts-v1/;
/ {
};
&{/fragment@2} {
		
		overlay2: __overlay__ {
			ZmodADC_0_AXI_ZmodADC1410_1: AXI_ZmodADC1410@43c00000 {	
				compatible = "generic-uio";
			};
		};
};
***************************************************************
/dts-v1/;
/ {
	&ZmodADC_0_AXI_ZmodADC1410_1 {
		compatible = "generic-uio";
	};
};
***************************************************************
/dts-v1/;
/ {
	&{/fragment@2} {
		&ZmodADC_0_AXI_ZmodADC1410_1 {
			compatible = "generic-uio";
		};
	};
};
***************************************************************

Is modification to overlays possible?? I just don’t know

2

The FPGA manager we enabled will remove PL device tree from system device tree so the booting process does not hang if bitstream is not loaded. The right way to do this, is to build your PL device tree segment as a dtbo file and loaded along with bitstream. An example can be found here: GitHub - byuccl/PYNQ-PRIO

1 Like
3

Wow, thank you rock!

I have created manually .dtbo :smiley:
But why the #includes do not work In petalinux20201?
If someone is interested
pl-custom.txt (3.2 KB)