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authorBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2008-02-02 19:56:31 +0100
committerBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2008-02-02 19:56:31 +0100
commitbfa14b42a3bd671f0287b3db42e703e86ef27b48 (patch)
treead902a99aa59232832d8e663be8d86a615e24114 /drivers/ide/pci/tc86c001.c
parentc413b9b94d9a8e7548cc4b2e04b7df0439ce76fd (diff)
ide: add ->cable_detect method to ide_hwif_t
* Add ->cable_detect method to ide_hwif_t. * Call the new method in ide_init_port() if: - the host supports UDMA modes > UDMA2 ('hwif->ultra_mask & 78') - DMA initialization was successful (if hwif->dma_base is not set ide_init_port() sets hwif->ultra_mask to zero) - "idex=ata66" is not used ('hwif->cbl != ATA_CBL_PATA40_SHORT') * Convert PCI host drivers to use ->cable_detect method. While at it: * Factor out cable detection to separate functions (if not already done). * hpt366.c/it8213.c/slc90e66.c: - don't check cable type if "idex=ata66" is used * pdc202xx_new.c: - add __devinit tag to pdcnew_cable_detect() * pdc202xx_old.c: - rename pdc202xx_old_cable_detect() to pdc2026x_old_cable_detect() - add __devinit tag to pdc2026x_old_cable_detect() Reviewed-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'drivers/ide/pci/tc86c001.c')
-rw-r--r--drivers/ide/pci/tc86c001.c24
1 files changed, 15 insertions, 9 deletions
diff --git a/drivers/ide/pci/tc86c001.c b/drivers/ide/pci/tc86c001.c
index 9fbbb4f2dd5..2ef2ed2f2b3 100644
--- a/drivers/ide/pci/tc86c001.c
+++ b/drivers/ide/pci/tc86c001.c
@@ -160,6 +160,19 @@ static int tc86c001_busproc(ide_drive_t *drive, int state)
return 0;
}
+static u8 __devinit tc86c001_cable_detect(ide_hwif_t *hwif)
+{
+ struct pci_dev *dev = to_pci_dev(hwif->dev);
+ unsigned long sc_base = pci_resource_start(dev, 5);
+ u16 scr1 = inw(sc_base + 0x00);
+
+ /*
+ * System Control 1 Register bit 13 (PDIAGN):
+ * 0=80-pin cable, 1=40-pin cable
+ */
+ return (scr1 & 0x2000) ? ATA_CBL_PATA40 : ATA_CBL_PATA80;
+}
+
static void __devinit init_hwif_tc86c001(ide_hwif_t *hwif)
{
struct pci_dev *dev = to_pci_dev(hwif->dev);
@@ -183,6 +196,8 @@ static void __devinit init_hwif_tc86c001(ide_hwif_t *hwif)
hwif->busproc = &tc86c001_busproc;
+ hwif->cable_detect = tc86c001_cable_detect;
+
if (!hwif->dma_base)
return;
@@ -196,15 +211,6 @@ static void __devinit init_hwif_tc86c001(ide_hwif_t *hwif)
hwif->rqsize = 0xffff;
hwif->dma_start = &tc86c001_dma_start;
-
- if (hwif->cbl != ATA_CBL_PATA40_SHORT) {
- /*
- * System Control 1 Register bit 13 (PDIAGN):
- * 0=80-pin cable, 1=40-pin cable
- */
- scr1 = inw(sc_base + 0x00);
- hwif->cbl = (scr1 & 0x2000) ? ATA_CBL_PATA40 : ATA_CBL_PATA80;
- }
}
static unsigned int __devinit init_chipset_tc86c001(struct pci_dev *dev,