From: "Gleb O. Raiko" <raiko@niisi.msk.ru>
To: Marc Karasek <marc_karasek@ivivity.com>
Cc: Jun Sun <jsun@mvista.com>, linux-mips@oss.sgi.com
Subject: Re: RFC: run-time defining serial ports
Date: Fri, 13 Jul 2001 18:48:59 +0400 [thread overview]
Message-ID: <3B4F0A5B.C1C0287D@niisi.msk.ru> (raw)
In-Reply-To: 995034043.1803.0.camel@localhost.localdomain
Marc Karasek wrote:
>
> All boot monitors (YAMON, PMON,
> REDBOOT) initialize the serial port as part of there bootup for use as a
> debug monitor, etc. Why should we have to redo something that is
> already taken care of.
Because we've got completely another policy of handling a device. For
example, a boot monitor (good one) must implement polling technique
only, Linux uses interrupt-driven technique (well, mostly). In general
case, Linux has to reinitialize a device after a boot monitor. It's
clear.
Regards,
Gleb.
prev parent reply other threads:[~2001-07-13 14:55 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-07-13 0:50 RFC: run-time defining serial ports Jun Sun
2001-07-13 11:43 ` Ralf Baechle
2001-07-13 14:20 ` Marc Karasek
2001-07-13 14:48 ` Gleb O. Raiko [this message]
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