From: Laurent Pinchart <laurent.pinchart@tbox.biz>
To: Wolfgang Denk <wd@denx.de>
Cc: linuxppc-embedded@ozlabs.org
Subject: Re: MPC8260 SCC UART hardware flow control
Date: Thu, 20 Jul 2006 16:30:47 +0200 [thread overview]
Message-ID: <200607201630.47701.laurent.pinchart@tbox.biz> (raw)
In-Reply-To: <20060719183740.22636352681@atlas.denx.de>
On Wednesday 19 July 2006 20:37, Wolfgang Denk wrote:
> In message <200607191718.00328.laurent.pinchart@tbox.biz> you wrote:
> > 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
next prev parent reply other threads:[~2006-07-20 14:28 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-07-19 15:18 MPC8260 SCC UART hardware flow control Laurent Pinchart
2006-07-19 18:37 ` Wolfgang Denk
2006-07-20 14:30 ` Laurent Pinchart [this message]
2006-07-20 8:18 ` Mathieu Deschamps
2006-07-20 14:32 ` Laurent Pinchart
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