K 10
svn:author
V 5
kibab
K 8
svn:date
V 27
2017-09-18T20:01:01.723923Z
K 7
svn:log
V 482
Make basic Broadcom I/O space reading functions work

It's now possible to use Broadcom functions to read the I/O registers of
SDIO card. The functions were copied from the BSD-licensed Broadcom Linux driver
as-is. To make it possible, a small Linux compatibility layer was introduced.

Currently the card responds with the correct version number ("magic")
when reading the corresponding address.

Approved by:	imp (mentor)
Differential Revision:	https://reviews.freebsd.org/D12111

END