From mboxrd@z Thu Jan 1 00:00:00 1970 Received: with ECARTIS (v1.0.0; list linux-mips); Wed, 06 Jul 2005 08:10:06 +0100 (BST) Received: from smtp008.bizmail.sc5.yahoo.com ([IPv6:::ffff:66.163.170.74]:15192 "HELO smtp008.bizmail.sc5.yahoo.com") by linux-mips.org with SMTP id ; Wed, 6 Jul 2005 08:09:50 +0100 Received: (qmail 18351 invoked from network); 6 Jul 2005 07:10:10 -0000 Received: from unknown (HELO ?192.168.1.107?) (ppopov@embeddedalley.com@63.194.214.47 with plain) by smtp008.bizmail.sc5.yahoo.com with SMTP; 6 Jul 2005 07:10:10 -0000 Subject: Re: possible serial driver fixup for au1x00 in 2.6? From: Pete Popov Reply-To: ppopov@embeddedalley.com To: rolf liu Cc: "linux-mips@linux-mips.org" In-Reply-To: <2db32b72050705124078a48aed@mail.gmail.com> References: <2db32b720507011756247735d6@mail.gmail.com> <1120266383.5987.46.camel@localhost.localdomain> <2db32b72050705124078a48aed@mail.gmail.com> Content-Type: text/plain Organization: Embedded Alley Solutions, Inc Date: Wed, 06 Jul 2005 00:10:17 -0700 Message-Id: <1120633817.5724.26.camel@localhost.localdomain> Mime-Version: 1.0 X-Mailer: Evolution 2.0.4 (2.0.4-4) Content-Transfer-Encoding: 7bit Return-Path: X-Envelope-To: <"|/home/ecartis/ecartis -s linux-mips"> (uid 0) X-Orcpt: rfc822;linux-mips@linux-mips.org Original-Recipient: rfc822;linux-mips@linux-mips.org X-archive-position: 8362 X-ecartis-version: Ecartis v1.0.0 Sender: linux-mips-bounce@linux-mips.org Errors-to: linux-mips-bounce@linux-mips.org X-original-sender: ppopov@embeddedalley.com Precedence: bulk X-list: linux-mips On Tue, 2005-07-05 at 12:40 -0700, rolf liu wrote: > Pete, > To try if 8250.c can work under db1550/linux 2.6.12, I turn off the > au1x00_uart.c config and just compiled in the 8250 support. When I > boot the kernel, nothing comes up through the console, which should be > provided by 8250 support, by 8250_early.c? > > Any idea? Yes. The 8250.c won't work with the au1x uart. I know I said in a previous email that the 8250 "basically" does the same thing as the au1x uart driver, but if the 8250 worked with the Au1x SoCs, why would we even have the au1x serial driver in place? Pete > > On 7/1/05, Pete Popov wrote: > > On Fri, 2005-07-01 at 17:56 -0700, rolf liu wrote: > > > Basically, au1x00_uart.c is doing the same thing as 8250.c. > > > > Basically. > > > > > If I want > > > to add extra serial port support by 8250.c. There could be some > > > problem. Any idea? > > > > Don't know, haven't tried it. In general, the au1x00 serial driver needs > > to be rewritten. > > > > Pete > > > > >