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Newbie
Newbie
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Registered: ‎10-13-2020

What are the addresses set in the device tree (mentioned in PG252)?

Hi

I am checking the address editor of the zcu104 2020.1 BSP in vivado, I saw that all 5 ports of the vcu_ddr4_controllers are mapped to the address "0x48_0000_0000". Also I found out that when I want to enable the PL DDR for VCU decoder (pg252 page 85),
I need to add some memory changes to the device tree as below:

ar_elahi_0-1602620278158.png

 


I wanted to know if these two addresses are related and if so, why is the address in the device tree 0x48 and not 0x48_0000_0000?

Also I wanted to know if these addresses have anything to do with the M_AXI_HPM1_FPD on table 10-1 of ug1085. I would really appreciate any info on this memory addresses.

ar_elahi_1-1602620333008.png

I also encounter the error mentioned here : https://forums.xilinx.com/t5/Video-and-Audio/Error-while-reserving-memory-for-VCU-Decoder-quot-Failed-to-get/td-p/1160600

Thanks

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