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hpt366: change timing register masks 

Since PIO autotuning is now done always, there's no need anymore to program
the taskfile timings also on DMA modes, so change the IDE timing register
masks accordingly, "inverting the polarity" of the masks while at it...

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
hifive-unleashed-5.1
Sergei Shtylyov 2008-01-25 22:17:04 +01:00 committed by Bartlomiej Zolnierkiewicz
parent b5e1a4e286
commit ceb1b2c583
1 changed files with 13 additions and 17 deletions
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30
drivers/ide/pci/hpt366.c
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@ -1,5 +1,5 @@
/*
* linux/drivers/ide/pci/hpt366.c Version 1.22 Dec 4, 2007
* linux/drivers/ide/pci/hpt366.c Version 1.23 Dec 7, 2007
*
* Copyright (C) 1999-2003 Andre Hedrick <andre@linux-ide.org>
* Portions Copyright (C) 2001 Sun Microsystems, Inc.
@ -689,19 +689,17 @@ static void hpt36x_set_mode(ide_drive_t *drive, const u8 speed)
struct hpt_info *info = pci_get_drvdata(dev);
u8 itr_addr = drive->dn ? 0x44 : 0x40;
u32 old_itr = 0;
u32 itr_mask, new_itr;
itr_mask = speed < XFER_MW_DMA_0 ? 0x30070000 :
(speed < XFER_UDMA_0 ? 0xc0070000 : 0xc03800ff);
new_itr = get_speed_setting(speed, info);
u32 new_itr = get_speed_setting(speed, info);
u32 itr_mask = speed < XFER_MW_DMA_0 ? 0xc1f8ffff :
(speed < XFER_UDMA_0 ? 0x303800ff :
0x30070000);
pci_read_config_dword(dev, itr_addr, &old_itr);
new_itr = (old_itr & ~itr_mask) | (new_itr & itr_mask);
/*
* Disable on-chip PIO FIFO/buffer (and PIO MST mode as well)
* to avoid problems handling I/O errors later
*/
pci_read_config_dword(dev, itr_addr, &old_itr);
new_itr = (new_itr & ~itr_mask) | (old_itr & itr_mask);
new_itr &= ~0xc0000000;
pci_write_config_dword(dev, itr_addr, new_itr);
@ -714,16 +712,14 @@ static void hpt37x_set_mode(ide_drive_t *drive, const u8 speed)
struct hpt_info *info = pci_get_drvdata(dev);
u8 itr_addr = 0x40 + (drive->dn * 4);
u32 old_itr = 0;
u32 itr_mask, new_itr;
itr_mask = speed < XFER_MW_DMA_0 ? 0x303c0000 :
(speed < XFER_UDMA_0 ? 0xc03c0000 : 0xc1c001ff);
new_itr = get_speed_setting(speed, info);
u32 new_itr = get_speed_setting(speed, info);
u32 itr_mask = speed < XFER_MW_DMA_0 ? 0xcfc3ffff :
(speed < XFER_UDMA_0 ? 0x31c001ff :
0x303c0000);
pci_read_config_dword(dev, itr_addr, &old_itr);
new_itr = (new_itr & ~itr_mask) | (old_itr & itr_mask);
new_itr = (old_itr & ~itr_mask) | (new_itr & itr_mask);
if (speed < XFER_MW_DMA_0)
new_itr &= ~0x80000000; /* Disable on-chip PIO FIFO/buffer */
pci_write_config_dword(dev, itr_addr, new_itr);