From: Andre Hedrick <andre@linux-ide.org>
To: "Jürgen Stohr" <juergen.stohr@gmx.de>
Cc: linux-kernel@vger.kernel.org, Alan Cox <alan@lxorguk.ukuu.org.uk>
Subject: Re: BUG in pdc202xx_old.c
Date: Sun, 20 Jul 2003 13:53:39 -0700 (PDT) [thread overview]
Message-ID: <Pine.LNX.4.10.10307201352010.29430-100000@master.linux-ide.org> (raw)
In-Reply-To: <200307202206.21872.juergen.stohr@gmx.de>
Juergen:
I have formally given up on Promise.
If it works somebody take it and stuff it into a kernel tree it is a DGD
for me now.
DGD == Don't Giva Damn
Cheers,
Andre Hedrick
LAD Storage Consulting Group
On Sun, 20 Jul 2003, [utf-8] Jürgen Stohr wrote:
> Hi Andre,
> in pdc202xx_old.c is a bug that prevents the use of "66 Clocking". The driver
> always falls back to UDMA 33. The reason for this bug is found in function
> "config_chipset_for_dma" when checking if the "other" drive is capable of
> UDMA 66. The follwing patch, which should apply against 2.4.22-pre7, solves
> the problem for me:
>
> --- pdc202xx_old.c.broken 2003-07-20 20:12:39.000000000 +0200
> +++ pdc202xx_old.c 2003-07-20 20:18:50.000000000 +0200
> @@ -425,7 +425,7 @@
> * check to make sure drive on same channel
> * is u66 capable
> */
> - if (hwif->drives[!(drive->dn%2)].id) {
> + if (hwif->drives[!(drive->dn%2)].present) {
> if (hwif->drives[!(drive->dn%2)].id->dma_ultra
> & 0x0078) {
> hwif->OUTB(CLKSPD | mask,
> (hwif->dma_master + 0x11));
> } else {
>
> regards,
> Jürgen
>
next prev parent reply other threads:[~2003-07-20 20:46 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-07-20 20:06 BUG in pdc202xx_old.c Jürgen Stohr
2003-07-20 20:53 ` Andre Hedrick [this message]
2003-07-20 23:31 ` Alan Cox
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