ebus(4) - NetBSD Manual Pages

EBUS(4)                 NetBSD Kernel Interfaces Manual                EBUS(4)


NAME

     ebus -- eMIPS Extensible I/O BUS driver


SYNOPSIS

     ebus0 at mainbus0


DESCRIPTION

     ebus is a virtual device for the Extensible I/O BUS realized with eMIPS
     on FPGA boards such as the BEE3, Xilinx XUP, and Xilinx ML40x systems.

     Devices on the BUS can generally be relocated and can be found by scan-
     ning the Peripheral Mapping Table at the top of the BUS physical space.
     The driver is responsible for identifying devices that are currently
     available, and to map them into the kernel virtual space during the ker-
     nel startup procedure.

     The ebus driver manages the Extensible I/O BUS on eMIPS and provides

           ·   Address range management to avoid conflicts.

           ·   Interrupt vector management.

           ·   Other utility functions.

     ebus is always required to run the NetBSD kernel.


SEE ALSO

     emips/ace(4), emips/dz(4), emips/eclock(4), emips/enic(4), emips/intro(4)

NetBSD 10.99                   February 17, 2017                  NetBSD 10.99