From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <00bf01bfd5b0$1700ec00$57c809c0@nt4srv87> Reply-To: "john zhan" From: "john zhan" To: Cc: "linuxppc-em" References: <4FC68B779807D31191B10008C7731C4D579921@meeis01nok> Subject: Re: SCC used for WAN connection Date: Wed, 14 Jun 2000 11:24:40 +0800 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linuxppc-embedded@lists.linuxppc.org List-Id: hi, Hugh McDonald > On 30/5/00 Ruedi Hofer wrote, > > > >I'd like to use one of the currently unused SCC's as WAN interface. > >My ultimate dream is to run PPP or Frame Relay at a speed of > >2Mb/s on it. me too. in fact, also, I need generic x.25 running on it. >Hugh McDonald wrote, > Hi Ruedi, > I too am hoping to one day run one SCC on an MBX860 board as a 2M WAN > port. My general plan was to run the SCC in HDLC synchronous mode and use > the PPP protocol on top of this. From my quick investigation I found that > in the LinuxPPc /kernel/drivers/char area there some files synclink.c > (rewrite of serial.c) and n_hdlc.c (rewrite of ppp.c). Together they form a > Linux Device Driver & line disipline for a synchrouous PPP link. > Unfortunately the synclink.c driver is dedicated to a PCI serial card > produced by MicroGate. yes , we NEED a SCC HDLC mode synchronous driver. > What is needed is a new version of 8xx_io/uart.c that sets up and drives > the SCC as a synchronous serial port. This may then be useable with the sync > PPP line disipline from the above driver. > I have started playing with it but only when I have some spare time.... great! I think it will probably have big difference from the existing uart.c , and init routine must contain of both uart and hdlc init code. or , maybe need reconstruct the directory/file structures , add hdlc.c which supports full features of net device. > and I dont seem to get much of that these days :-( > Please let me know if you get any info from other people or find out any > other possible solutions.... I think we can work together . If you like,let's discuss it later , privately. what do you say? regards. john zhan. hacking time. ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/