From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-out.m-online.net (mail-out.m-online.net [212.18.0.10]) by ozlabs.org (Postfix) with ESMTP id 1B62367B73 for ; Thu, 20 Jul 2006 04:37:42 +1000 (EST) To: Laurent Pinchart From: Wolfgang Denk Subject: Re: MPC8260 SCC UART hardware flow control Mime-version: 1.0 Content-type: text/plain; charset=ISO-8859-1 In-reply-to: Your message of "Wed, 19 Jul 2006 17:18:00 +0200." <200607191718.00328.laurent.pinchart@tbox.biz> Date: Wed, 19 Jul 2006 20:37:40 +0200 Sender: wd@denx.de Message-Id: <20060719183740.22636352681@atlas.denx.de> Cc: linuxppc-embedded@ozlabs.org List-Id: Linux on Embedded PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , 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 [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...] Best regards, Wolfgang Denk -- Software Engineering: Embedded and Realtime Systems, Embedded Linux Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@denx.de The average woman would rather have beauty than brains, because the average man can see better than he can think.