From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Message-ID: <3C6D1A26.1040209@capflow.com> Date: Fri, 15 Feb 2002 15:24:38 +0100 From: Laurent Pinchart MIME-Version: 1.0 To: wd@denx.de Cc: linuxppc-embedded@lists.linuxppc.org Subject: Re: SCC or SMC for console ? References: <20020214183203.C4651109E2@denx.denx.de> Content-Type: text/plain; charset=us-ascii; format=flowed Reply-To: laurent.pinchart@capflow.com Sender: owner-linuxppc-embedded@lists.linuxppc.org List-Id: > > >Should be no problem. The kernel on our FTP server was tested with 6 >serial ports on a MPC860, with HW flow controll on all SCC's. > Reading arch/ppc/8xx_io/uart.c, I found out that all the flow control related code was surrounded by false #if #endif. It seems that there is no flow control at all on either the SMC or SCC serial ports in UART mode. Is there a patch somewhere to implement flow control, or is it still missing ? I was wondering what to do with CD/DTR/DSR (as Linux only support RTS/CTS flow control for now), and had hoped to find an answer in the source code... Laurent Pinchart ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/