chipyard.config.AbstractConfig

[Junaid amjad]

Is it necessary to add this config (chipyard.config.AbstractConfig) to build any SoC? Like what I'm understanding from it's source code is that it adds some peripherals/IPs depending upon either they are enable or not.
But in case of CVA6 which itself is a sort of SoC having some peripherals integrated in it (like UART ), can't we just ignore this config and still be able to generate an SoC ( with CVA6 config)? I'm trying to do this but getting error, can anyone guide about this.

Attaching the Config which I'm using: 

class CVA6Config extends Config(
  new cva6.WithNCVA6Cores(1))

Thanks!

[Abraham Gonzalez]

In Chipyard, this config. is always needed (though can be a bit reduced depending on what peripherals/IPs you minimally need). We have integrated only the core part of CVA6 into Chipyard and thus do not use any of the peripherals/etc that it includes. If you would like to minimize the number of extra peripherals on the SoC, you can try to delete/modify some of these lines in the AbstractConfig (https://github.com/ucb-bar/chipyard/blob/03083507d3c47ffb943bb4162f7b992082f84363/generators/chipyard/src/main/scala/config/AbstractConfig.scala#L44-L61).

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Abraham J. Gonzalez

Electrical Engineering and Computer Science Ph.D. Student

The University of California at Berkeley

[Darshak Sheladiya]

Hi,

I am new to chipyard. I did FPGA prototyping of MegaBoom core on VCU118. As suggested in Chipyard documentation: 

class BoomVCU118Config extends Config(
  new WithFPGAFrequency(50) ++
  new WithVCU118Tweaks ++
  new chipyard.MegaBoomConfig)

This works fine. However, I want add CVA6 place  of MegaBoom.

I tried:

class BoomVCU118Config extends Config(
  new WithFPGAFrequency(50) ++
  new WithVCU118Tweaks ++
  new cva6.WithNCVA6Cores(1))

But this config gives an error. I would be really grateful  if you guide me here.

Thanks in advance.