Unmatched SOC AMBA bus support

HiFive Unmatched
1

Unmatched AMBA bus support

I am adding reserved area to the device tree. So far no problems with that. I confirmed that by checking /proc/iomem

Does the Unmatched SOC support the AMBA bus. I don’t see an error with the device tree on boot up, so I guess there is no problem.

    amba {
  vring: vring@0 {
            ***************
           ***************
  };
  shm0: shm@0 {
           ***************
           ***************
  };

};
};

I can’t see anything in the data sheets.

2

The device tree is purely informational. The amba name there has no semantic meaning. Software does not care, nor can it do anything differently between, whether a bus is AMBA, AXI, AXI-Lite, Wishbone, TileLink or anything else that’s purely a hardware protocol.

1 Like
3

Thanks. I understand, the amba keyboard is unnecessary.