Date: Wed, 31 Dec 2003 23:41:46 -0700 (MST) From: "M. Warner Losh" <imp@bsdimp.com> To: dhee@myrealbox.com Cc: freebsd-current@freebsd.org Subject: Re: Serial driver problems with 5.2-current Message-ID: <20031231.234146.28293981.imp@bsdimp.com> In-Reply-To: <1072601553.b8854200dhee@myrealbox.com> References: <1072601553.b8854200dhee@myrealbox.com>
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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
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