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SubjectRe: BUG in pdc202xx_old.c

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
>

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