Messages in this thread Patch in this message | | | From | Jürgen Stohr <> | Subject | BUG in pdc202xx_old.c | Date | Sun, 20 Jul 2003 22:06:21 +0200 |
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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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