On Wednesday 19 July 2006 20:37, Wolfgang Denk wrote:

In message [ref] you wrote:

quoted

I was wondering if anyone had implemented hardware flow control support
in the cpm_uart driver. If not, I would appreciate pointers regarding how
to do so.

You can probably take our 2.4 kernel code as a starting point. But be
aware of the inherent restrictions of the CPM, see
http://www.denx.de/wiki/view/DULG/UseSCCUARTWithHardwareHandshake

I didn't know the CPM implemented hardware flow control as a DTE only. Thanks 
for the information. As our hardware connects to DCE devices this shouldn't 
be a problem.

[In the end, you might want to configure  the  handshake  signals  as
GPIO lines and controll these manually. But then you will have to ask
yourself why you are using a CPM...]

Laurent Pinchart