On 12/01/2018 15:10, Jean-Christophe Dubois wrote: > Le 2018-01-12 11:55, Fabien Chouteau a écrit : >> On 11/01/2018 13:35, Jean-Christophe Dubois wrote: >>> Thanks Fabien, >>> >>> Now, as a side question, could you tell me which reference LEON3 platform >>> is implemented by Qemu in leon3_generic? >>> >> >> I think it was the based on the FPGA version of Leon3 I was using at the >> time. The name leon3_generic comes from my will to make it a >> configurable board where users could define the number and the location >> of the different peripherals, I never had time to work on this. > > I see. I am not sure how to bring configurability to Qemu. There is the > possibility to describe the hw PTF with DTC/DTB or something similar. I think > some people were working on it for the ARM Qemu platform (but I am not sure > what happened to this initiative). > > Now in the meantime, would it make sense to move leon3_generic to a tsim > compatible platform? >
I don't think so, leon3_generic is compatible with a real hardware which is also interesting for comparison. > This would allow to validate the same software on the 2 simulators (obviously > it would not be compatible with your specific FPGA version for now). > The Leon3 AMBA bus provides a way to discover the peripherals and their address, so any system should be capable of supporting different peripheral layouts. Here's an example of AMBA discovery code from a very old project of mine (don't judge me on this :) : https://github.com/Fabien-Chouteau/kabitbol/blob/master/src/amba.c There was a couple of patches submitted some times ago to add Leon3 AMBA support in QEMU, I think it's time to bring them back...
