As far as I am aware, Qsys supports Avalon, AXI3 and AXI4 natively. However, I am not sure if it can support other interfaces like AMBA APB, AMBA AHB and Wishbone. Does Qsys have support for these interfaces at all?
That is interesting. What about AHB-Lite? Also, is there a bridge component to convert between AXI and these older interfaces AHB and APB? I think that a bridge component is usually required.
Finally, where are the BFMs that can be used to verify AHB and APB interface components? I have not seen any BFMs for these yet.
Xilinx seem to have a bridge componet for this and Microsemi also seem to have one. I did not expect that it would be missing with Altera/Intel.