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disable (U)DMA for ATAPI on aceride(4), the chip doesn't support it

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PR port-sparc64/55540
This commit is contained in:
jdolecek 2020-12-20 19:30:03 +00:00
parent 374368e991
commit 7919cd9239
1 changed files with 9 additions and 2 deletions
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11
sys/dev/pci/aceride.c
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@ -1,4 +1,4 @@
/* $NetBSD: aceride.c,v 1.37 2017/07/21 21:01:13 nakayama Exp $ */
/* $NetBSD: aceride.c,v 1.38 2020/12/20 19:30:03 jdolecek Exp $ */
/*
* Copyright (c) 1999, 2000, 2001 Manuel Bouyer.
@ -25,7 +25,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: aceride.c,v 1.37 2017/07/21 21:01:13 nakayama Exp $");
__KERNEL_RCSID(0, "$NetBSD: aceride.c,v 1.38 2020/12/20 19:30:03 jdolecek Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@ -298,6 +298,13 @@ acer_setup_channel(struct ata_channel *chp)
ACER_UDMA_EN(chp->ch_channel, drive) |
ACER_UDMA_TIM(chp->ch_channel, drive, 0x7));
/* (U)DMA doesn't work with ATAPI devices */
if (drvp->drive_type == ATA_DRIVET_ATAPI) {
s = splbio();
drvp->drive_flags &= ~(ATA_DRIVE_DMA|ATA_DRIVE_UDMA);
splx(s);
}
/* add timing values, setup DMA if needed */
if ((drvp->drive_flags & ATA_DRIVE_DMA) == 0 &&
(drvp->drive_flags & ATA_DRIVE_UDMA) == 0) {