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Re: kern/54538 (wdc(4) regression after SATA NCQ merge)
The following reply was made to PR kern/54538; it has been noted by GNATS.
From: Izumi Tsutsui <tsutsui%ceres.dti.ne.jp@localhost>
Cc: jdolecek%NetBSD.org@localhost, tsutsui%ceres.dti.ne.jp@localhost
Subject: Re: kern/54538 (wdc(4) regression after SATA NCQ merge)
Date: Tue, 10 Sep 2019 22:54:49 +0900
> Committed a fix. Can you confirm it still works after change? The dreamcast
> wdc reset didn't seem useful so I just disabled it.
It looks wdc_g1_do_reset() is not necessary for wdcprobe(),
but IIRC it was actually required on device accesses.
GD-ROM is a very early ATAPI devices (appeared in 1998) and
it doesn't reset its internal status by WDCTL_RST bit in AUXCTL
but requires ATAPI_SOFT_RESET command, as per
Anyway I'll try if your fix works or not.
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