Date: Thu, 08 Apr 1999 11:26:23 -0700 From: Ted Faber <faber@ISI.EDU> To: "Daniel C. Sobral" <dcs@newsguy.com> Cc: NAKAGAWA Yoshihisa <y-nakaga@nwsl.mesh.ad.jp>, Nate Williams <nate@mt.sri.com>, Nick Sayer <nsayer@quack.kfu.com>, freebsd-mobile@FreeBSD.ORG Subject: Re: Any success with CirrusLogic 6729/6730??? Message-ID: <199904081826.LAA19595@boreas.isi.edu> In-Reply-To: Your message of "Thu, 08 Apr 1999 21:09:07 %2B0900." <370C9C63.B5506516@newsguy.com>
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-----BEGIN PGP SIGNED MESSAGE----- "Daniel C. Sobral" wrote: >NAKAGAWA Yoshihisa wrote: >> >> - PCIC is an ISA device. PCIC handles bus, yet the bus is not the >> bus PCIC belongs to. Please note that a PCIC is an ISA device and >> a bridge between ISA bus and PC Card bus. Also, if you see codes >> on NetBSD, bus dependent code and handling bridge is different. > >I just wish this PCIC is ISA/PCIC is not ISA would get settled... >Can anyone on the not ISA camp *PROVE* it is not an ISA device? If >it is not an ISA device, it ought to be possible to show a case A >where an ISA device behaves in such an such way and PCIC does not. <disclaimer> I'm not in either camp. There's probably a way to make the pcic driver work either way, and I'm underinformed on the background of the design decisions in question. </disclaimer> I think the issue of is it or isn't it is most germane to whether we can supply the ISA irq and port on a config line, as we can for the devices that are definitely ISA drivers. Presumably using that configuration mechanism means tying it to the kernel data structures for ISA devices, and herein lies the problem. Nate, is that where the problems arise? Can you clarify? I ask for your opinion because you understand the ramifications of those ties better than I do. - ---------------------------------------------------------------------- Ted Faber faber@isi.edu USC/ISI Computer Scientist http://www.isi.edu/~faber (310) 822-1511 x190 PGP Key: http://www.isi.edu/~faber/pubkey.asc -----BEGIN PGP SIGNATURE----- Version: 2.6.2 iQCVAwUBNwz0zob4eisfQ5rpAQGojwQAo19DkTNKrDq32Pqahy0MvuH/IZV/l/41 Pvg9ov/53GyaQx3Wv7VCJNo1qAN+CynXZXiS7Kgr99JnfdcNjOIpYIoeTdlDvhr1 W4fq/1ZDYi682B0M+pGjoA8DNqCH8JiEdGsK8RNHKX/+iZeDeluvd/j7oYnPlrNf VXjKuPjiXQk= =jA4b -----END PGP SIGNATURE----- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-mobile" in the body of the message
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