svn commit: r286768 - head/sys/arm64/arm64

[Hans Petter Selasky]

On 08/14/15 11:55, Andrew Turner wrote:
> Author: andrew
> Date: Fri Aug 14 09:55:25 2015
> New Revision: 286768
> URL: https://svnweb.freebsd.org/changeset/base/286768
>
> Log:
>    Add support for bus_space_read_region and bus_space_write_region. This is
>    needed for the dwc USB controller driver.
>
>    Sponsored by:	ABT Systems Ltd
>
> Modified:
>    head/sys/arm64/arm64/bus_machdep.c
>    head/sys/arm64/arm64/bus_space_asm.S
>

NOTE: Use of load/store multiple can give a significant performance 
boost for the DWC OTG.

--HPS