tree 5b8a5c88229820cb870f4b5f449fb432f3bf7bda
parent 3e8a12a48d446c014939f7c2490c8663733d0ea7
author Andrew Jeffery <andrew@aj.id.au> 1589281079 +0930
committer Andrew Jeffery <andrew@aj.id.au> 1591340780 +0930

astlpc: Support the host-side binding interface

The host-side KCS interface differs to the BMC that we need to mirror
the use of the IBF/OBF bits and the location of the Tx/Rx buffers.

The device (currently restricted to the host) also needs to use a
different initialisation sequence to the bus-owner (currently restricted
to the BMC), in that it must not write to regions of the control space
that the bus-owner owns. Concretely, the device is to write its
supported version range and then send the channel-init command via the
KCS interface.

Change-Id: I715b83d82119ebbdce6ef8176ea0a9facf9bb555
Signed-off-by: Andrew Jeffery <andrew@aj.id.au>