diff options
author | Sergei Shtylyov <sshtylyov@ru.mvista.com> | 2006-12-08 10:40:01 (GMT) |
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committer | Linus Torvalds <torvalds@woody.osdl.org> | 2006-12-08 16:29:03 (GMT) |
commit | dd607d23ff4cc004da2986d0b264a972c6a2da3e (patch) | |
tree | 5845b66acd8b2b6e9a1dc7d5964d5aaa3d00b669 /drivers/ide | |
parent | b10a06866600d1eda9e72ff328999e70f077fb3a (diff) | |
download | linux-fsl-qoriq-dd607d23ff4cc004da2986d0b264a972c6a2da3e.tar.xz |
[PATCH] sl82c105: straighten up IDE control/status register caching
Straighten up the IDE control/status register caching -- you *really* can't
cache the shared register per-channel and hope that it won't get out ouf
sync.
Set the PIO fallback mode to PIO0 for the slave drive as well as master --
there was no point in having them different (most probably a resutl of
typo).
Do a bit of reformat and cleanup while at it...
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/ide')
-rw-r--r-- | drivers/ide/pci/sl82c105.c | 31 |
1 files changed, 13 insertions, 18 deletions
diff --git a/drivers/ide/pci/sl82c105.c b/drivers/ide/pci/sl82c105.c index 0b4b604..5afefe8 100644 --- a/drivers/ide/pci/sl82c105.c +++ b/drivers/ide/pci/sl82c105.c @@ -299,14 +299,14 @@ static void sl82c105_selectproc(ide_drive_t *drive) //DBG(("sl82c105_selectproc(drive:%s)\n", drive->name)); mask = hwif->channel ? CTRL_P1F16 : CTRL_P0F16; - old = val = *((u32 *)&hwif->hwif_data); + old = val = (u32)pci_get_drvdata(dev); if (drive->using_dma) val &= ~mask; else val |= mask; if (old != val) { pci_write_config_dword(dev, 0x40, val); - *((u32 *)&hwif->hwif_data) = val; + pci_set_drvdata(dev, (void *)val); } } @@ -316,14 +316,13 @@ static void sl82c105_selectproc(ide_drive_t *drive) */ static void sl82c105_resetproc(ide_drive_t *drive) { - ide_hwif_t *hwif = HWIF(drive); - struct pci_dev *dev = hwif->pci_dev; + struct pci_dev *dev = HWIF(drive)->pci_dev; u32 val; DBG(("sl82c105_resetproc(drive:%s)\n", drive->name)); pci_read_config_dword(dev, 0x40, &val); - *((u32 *)&hwif->hwif_data) = val; + pci_set_drvdata(dev, (void *)val); } /* @@ -394,6 +393,7 @@ static unsigned int __devinit init_chipset_sl82c105(struct pci_dev *dev, const c pci_read_config_dword(dev, 0x40, &val); val |= CTRL_P0EN | CTRL_P0F16 | CTRL_P1F16; pci_write_config_dword(dev, 0x40, val); + pci_set_drvdata(dev, (void *)val); return dev->irq; } @@ -404,30 +404,25 @@ static unsigned int __devinit init_chipset_sl82c105(struct pci_dev *dev, const c static void __devinit init_hwif_sl82c105(ide_hwif_t *hwif) { - struct pci_dev *dev = hwif->pci_dev; unsigned int rev; u8 dma_state; - u32 val; - + DBG(("init_hwif_sl82c105(hwif: ide%d)\n", hwif->index)); hwif->tuneproc = tune_sl82c105; hwif->selectproc = sl82c105_selectproc; hwif->resetproc = sl82c105_resetproc; - - /* Default to PIO 0 for fallback unless tuned otherwise, - * we always autotune PIO, this is done before DMA is - * checked, so there is no risk of accidentally disabling - * DMA - */ + + /* + * Default to PIO 0 for fallback unless tuned otherwise. + * We always autotune PIO, this is done before DMA is checked, + * so there's no risk of accidentally disabling DMA + */ hwif->drives[0].pio_speed = XFER_PIO_0; hwif->drives[0].autotune = 1; - hwif->drives[1].pio_speed = XFER_PIO_1; + hwif->drives[1].pio_speed = XFER_PIO_0; hwif->drives[1].autotune = 1; - pci_read_config_dword(dev, 0x40, &val); - *((u32 *)&hwif->hwif_data) = val; - hwif->atapi_dma = 0; hwif->mwdma_mask = 0; hwif->swdma_mask = 0; |