Re: [PATCHv2] cpm_uart: Fix break generation

[Laurent Pinchart <laurentp@cse-semaphore.com>]

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On Thursday 24 July 2008, Kumar Gala wrote:
> 
> On Jul 24, 2008, at 9:21 AM, Laurent Pinchart wrote:
> 
> > When generating a break condition on a serial port, the CPM must be  
> > told beforehand how long the break should be. Unfortunately, this  
> > information is not available through the current serial break handling
> > API. This patch works around the problem by requesting a 32767 characters
> > break followed by a 0 characters break after the requested duration. The
> > CPM will stop the first break when the second one is requested. This might
> > not work with future CPM revisions.
> 
> What do you mean by future CPM revision?  Do you mean QE?

I was thinking about minor revisions of the CPM2 silicon as described in http://www.freescale.com/files/32bit/doc/app_note/AN2291.pdf

-- 
Laurent Pinchart
CSE Semaphore Belgium

Chaussee de Bruxelles, 732A
B-1410 Waterloo
Belgium

T +32 (2) 387 42 59
F +32 (2) 387 42 75

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