Anyone using QE UART mode?

Ying Lin ylin at
Tue Jul 3 02:01:56 EST 2007

OK, the missing piece (UART driver) I am looking for is not available
yet.  I will seek alternative solutions (create a simple UART driver, or
just wait).
Thanks for the information. 

-----Original Message-----
From: Timur Tabi [mailto:timur at] 
Sent: Monday, July 02, 2007 11:40 AM
To: Ying Lin
Cc: linuxppc-embedded at
Subject: Re: Anyone using QE UART mode?

Ying Lin wrote:
> How to enable TTY devices using QUICC Engine UCC UART Mode?
> Are Linux kernel patches enough to enable them?  Or, additional 
> programming required?

I'm working on a device driver for QE UART mode, but it's not working
yet.  The QE UART is 
like the CPM UART, but I'm having troubel getting it to work.

It is *not* trivial, or even easy, to enabled.  It's a full-blown UART
driver that also 
deals with the complexity of the QE.

Timur Tabi
Linux Kernel Developer @ Freescale

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