From d44a65f7bb0dae0bcc78de336b55a75b30ec2d2a Mon Sep 17 00:00:00 2001 From: Sergei Shtylyov Date: Fri, 10 Aug 2007 20:58:46 +0400 Subject: [PATCH] pata_hpt37x: actually clock HPT374 with 50 MHz DPLL (take 2) The DPLL tuning code always set up it for 66 MHz due to wrong UltraDMA mask including mode 5 used to check for the necessity of 66 MHz clocking -- this caused 66 MHz clock to be used for HPT374 chip that does not tolerate it. While fixing this, also remove PLL mode from the TODO list -- I don't think it's still a relevant item. Signed-off-by: Sergei Shtylyov Signed-off-by: Jeff Garzik --- drivers/ata/pata_hpt37x.c | 12 ++++-------- 1 file changed, 4 insertions(+), 8 deletions(-) diff --git a/drivers/ata/pata_hpt37x.c b/drivers/ata/pata_hpt37x.c index 84d9c5568567..96bbe7c39bee 100644 --- a/drivers/ata/pata_hpt37x.c +++ b/drivers/ata/pata_hpt37x.c @@ -8,12 +8,10 @@ * Copyright (C) 1999-2003 Andre Hedrick * Portions Copyright (C) 2001 Sun Microsystems, Inc. * Portions Copyright (C) 2003 Red Hat Inc - * Portions Copyright (C) 2005-2006 MontaVista Software, Inc. + * Portions Copyright (C) 2005-2007 MontaVista Software, Inc. * * TODO - * PLL mode - * Look into engine reset on timeout errors. Should not be - * required. + * Look into engine reset on timeout errors. Should not be required. */ #include @@ -26,7 +24,7 @@ #include #define DRV_NAME "pata_hpt37x" -#define DRV_VERSION "0.6.7" +#define DRV_VERSION "0.6.8" struct hpt_clock { u8 xfer_speed; @@ -1092,9 +1090,7 @@ static int hpt37x_init_one(struct pci_dev *dev, const struct pci_device_id *id) int dpll, adjust; /* Compute DPLL */ - dpll = 2; - if (port->udma_mask & 0xE0) - dpll = 3; + dpll = (port->udma_mask & 0xC0) ? 3 : 2; f_low = (MHz[clock_slot] * 48) / MHz[dpll]; f_high = f_low + 2; -- 2.20.1