BCM4321 support

[Michael Büsch]

On Mon, 29 Aug 2011 11:36:20 -0500
Larry Finger <Larry.Finger at lwfinger.net> wrote:

> The firmware has its own private memory and it shares some memory with the host 
> CPU

The firmware does not share any memory with the host CPU. The memory is called
"shared memory", but that is a misnomer. The host CPU accesses that memory
by memory mapped I/O. Firmware can do DMA only indirectly through the
TX and RX engines.

-- 
Greetings, Michael.