From owner-freebsd-current@FreeBSD.ORG  Wed Dec 31 22:42:04 2003
Return-Path: <owner-freebsd-current@FreeBSD.ORG>
Delivered-To: freebsd-current@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id 4457716A4CE
	for <freebsd-current@freebsd.org>;
	Wed, 31 Dec 2003 22:42:04 -0800 (PST)
Received: from harmony.village.org (rover.bsdimp.com [204.144.255.66])
	by mx1.FreeBSD.org (Postfix) with ESMTP id 111B343D5C
	for <freebsd-current@freebsd.org>;
	Wed, 31 Dec 2003 22:42:03 -0800 (PST)	(envelope-from imp@bsdimp.com)
Received: from localhost (warner@rover2.village.org [10.0.0.1])
	by harmony.village.org (8.12.10/8.12.9) with ESMTP id i016g1AI017013;
	Wed, 31 Dec 2003 23:42:02 -0700 (MST)
	(envelope-from imp@bsdimp.com)
Date: Wed, 31 Dec 2003 23:41:46 -0700 (MST)
Message-Id: <20031231.234146.28293981.imp@bsdimp.com>
To: dhee@myrealbox.com
From: "M. Warner Losh" <imp@bsdimp.com>
In-Reply-To: <1072601553.b8854200dhee@myrealbox.com>
References: <1072601553.b8854200dhee@myrealbox.com>
X-Mailer: Mew version 3.3 on Emacs 21.3 / Mule 5.0 (SAKAKI)
Mime-Version: 1.0
Content-Type: Text/Plain; charset=us-ascii
Content-Transfer-Encoding: 7bit
cc: freebsd-current@freebsd.org
Subject: Re: Serial driver problems with 5.2-current
X-BeenThere: freebsd-current@freebsd.org
X-Mailman-Version: 2.1.1
Precedence: list
List-Id: Discussions about the use of FreeBSD-current
	<freebsd-current.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>,
	<mailto:freebsd-current-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-current>
List-Post: <mailto:freebsd-current@freebsd.org>
List-Help: <mailto:freebsd-current-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>,
	<mailto:freebsd-current-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Thu, 01 Jan 2004 06:42:04 -0000

Found problem, but no solution yet.  It turns out that the 3*FEM556
cards really don't like to be mapped where we're mapping them, or they
aren't turned on (can't really tell the two apart).  The non F version
(3CXEM556 and 3CCEM556B) that I tried work great at the same address,
so I suspect something is different between the cards.  Don't know if
we need turn on the serial card (like I think NetBSD does, must spend
more time reading their code), or if we need to map it in a different
location.  I have code in my sio driver that refuses to attach if it
reads back 0xff from the card (which for the iir register is
impossible for the 16550A if I read the datasheet right).

Warner