[Libre-soc-dev] versa_ecp5.py P&R failure was daily kan-ban update 14oct2020

[Cole Poirier]

On Thu, Oct 15, 2020 at 10:54 AM Luke Kenneth Casson Leighton
<lkcl at lkcl.net> wrote:
> On 10/15/20, Cole Poirier <colepoirier at gmail.com> wrote:
> > a) Do we need litex *BIOS* firmware source code know about
> > POWER9/Microwatt/LibreSOC XICS interrupt controllers?
>
> yes if we want to know if interrupts work in the FPGA.
>
> > b) If so, how do we make litex *BIOS* firmware source code know about
> > POWER9/Microwatt/LibreSOC XICS interrupt controllers?
>
> somebody writes the code, in c and assembler, and then writes device
> drivers, again in c, that use it.
>
> this is a lot of work (1 week +)
>
> given that xics.bin in microwatt has all of this it is an easier test.

So we don't need to do the 1 week + of work now because we can use
xics.bin to test that interrupts work in ls180 on fpga?

Cole