Re: [Libre-silicon-devel] NLNet Funding Proposals for the Libre RISC-V SoC: call for participation

[Luke Kenneth Casson Leighton <lkcl@lkcl.net>]

On Tue, Sep 24, 2019 at 9:55 AM Hagen SANKOWSKI <hsank@posteo.de> wrote:

> The main difference between AMBI AXI and Wishbone is the streaming
> capability. AXI can stream data, just with repetition stages, without
> handshake signals. So, it would be easier and more sustainable to
> bring-up Wishbone to the next level by standardize a similar streaming
> feature. And yes, there are a lot of cores which using AMBA AXI which
> had to be partly re-written for Wishbone. But currently, there is no
> alternative, or as the German chancellor Merkel likes to say:
> "alternativlos". With added streaming feature to Wishbone, we would get
> an alternative full-featured SoC Bus and Designers could fix their bad
> AMBA AXI bus interfaces..

great: this sounds like a perfect *additional* Research Project which
someone [else] could put in a request for funding.  once it is
available, we can look at converting the code over to use it, and
converting any peripherals to use it.

or, if someone [else] wants to include the Libre RISC-V SoC peripheral
set as a possible suite of examples to convert (which would help
justify a budget of EUR 50,000) they are welcome to do so.

the relevance of the streaming capability is that we need an I2S Audio Bus.

i can help with a write-up: unfortunately i am hitting an _additional_
limit of EUR 250,000 per person for overall projects submitted, so
cannot be the one to submit it.

l.

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