Since r117657, bge(4) does not enable buffer manager for BCM5705 or newer controllers.  However, all data sheet I have access has no indication that buffer manager should not be touched on these controllers.  It seems the buffer manager always runs on BCM5705 or newer controllers. Some controller(e.g. BCM5719) needs other buffer manager configuration so driver should enable buffer manager for all controllers.  Both Linux and OpenBSD/NetBSD use the same approach. This change polls enable bit of block to know whether specified block was really stopped as well as enabling buffer manager for all controllers in driver initialization.
Since r117657, bge(4) does not enable buffer manager for BCM5705 or
newer controllers.  However, all data sheet I have access has no
indication that buffer manager should not be touched on these
controllers.  It seems the buffer manager always runs on BCM5705 or
newer controllers. Some controller(e.g. BCM5719) needs other buffer
manager configuration so driver should enable buffer manager for
all controllers.  Both Linux and OpenBSD/NetBSD use the same
approach.
This change polls enable bit of block to know whether specified
block was really stopped as well as enabling buffer manager for all
controllers in driver initialization.

Obtained from:	NetBSD

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase