From mboxrd@z Thu Jan 1 00:00:00 1970 Received: with ECARTIS (v1.0.0; list linux-mips); Wed, 06 Jul 2005 17:21:23 +0100 (BST) Received: from wproxy.gmail.com ([IPv6:::ffff:64.233.184.203]:15625 "EHLO wproxy.gmail.com") by linux-mips.org with ESMTP id convert rfc822-to-8bit; Wed, 6 Jul 2005 17:21:06 +0100 Received: by wproxy.gmail.com with SMTP id i22so1087068wra for ; Wed, 06 Jul 2005 09:21:21 -0700 (PDT) DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:reply-to:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=kEXoemsOFANWsPAiGNbGsujYpc7cZwMB9wkUFoJxk5lBokLFOX/Mo9kaTOafgFMQ0Oq7cc4qLpyO/LNIliymzZDKy3FkPIGO0cW99pxB4odrywH/PpyZNN+y2Uu57m09PCpxG0ClNevOJUoMog5L4deEmnq9elKk/7FcQDrPeIY= Received: by 10.54.80.7 with SMTP id d7mr412528wrb; Wed, 06 Jul 2005 09:21:20 -0700 (PDT) Received: by 10.54.71.11 with HTTP; Wed, 6 Jul 2005 09:21:20 -0700 (PDT) Message-ID: <2db32b7205070609215b750fea@mail.gmail.com> Date: Wed, 6 Jul 2005 09:21:20 -0700 From: rolf liu Reply-To: rolf liu To: ppopov@embeddedalley.com Subject: Re: possible serial driver fixup for au1x00 in 2.6? Cc: "linux-mips@linux-mips.org" In-Reply-To: <1120633817.5724.26.camel@localhost.localdomain> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8BIT Content-Disposition: inline References: <2db32b720507011756247735d6@mail.gmail.com> <1120266383.5987.46.camel@localhost.localdomain> <2db32b72050705124078a48aed@mail.gmail.com> <1120633817.5724.26.camel@localhost.localdomain> 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: 8375 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: rolfliu@gmail.com Precedence: bulk X-list: linux-mips Hi Pete, I just give 8250.c a dirty hack, letting it just manage the additional serial ports. So there are two serial driver in the system at the same time :( Sound funny. thanks for your comments. I will give the feadback when I get more :) On 7/6/05, Pete Popov wrote: > 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 > > > > > > > > > >