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path: root/drivers/ide/pci/tc86c001.c
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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 9fbbb4f2dd54..2ef2ed2f2b32 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)
160 return 0; 160 return 0;
161} 161}
162 162
163static u8 __devinit tc86c001_cable_detect(ide_hwif_t *hwif)
164{
165 struct pci_dev *dev = to_pci_dev(hwif->dev);
166 unsigned long sc_base = pci_resource_start(dev, 5);
167 u16 scr1 = inw(sc_base + 0x00);
168
169 /*
170 * System Control 1 Register bit 13 (PDIAGN):
171 * 0=80-pin cable, 1=40-pin cable
172 */
173 return (scr1 & 0x2000) ? ATA_CBL_PATA40 : ATA_CBL_PATA80;
174}
175
163static void __devinit init_hwif_tc86c001(ide_hwif_t *hwif) 176static void __devinit init_hwif_tc86c001(ide_hwif_t *hwif)
164{ 177{
165 struct pci_dev *dev = to_pci_dev(hwif->dev); 178 struct pci_dev *dev = to_pci_dev(hwif->dev);
@@ -183,6 +196,8 @@ static void __devinit init_hwif_tc86c001(ide_hwif_t *hwif)
183 196
184 hwif->busproc = &tc86c001_busproc; 197 hwif->busproc = &tc86c001_busproc;
185 198
199 hwif->cable_detect = tc86c001_cable_detect;
200
186 if (!hwif->dma_base) 201 if (!hwif->dma_base)
187 return; 202 return;
188 203
@@ -196,15 +211,6 @@ static void __devinit init_hwif_tc86c001(ide_hwif_t *hwif)
196 hwif->rqsize = 0xffff; 211 hwif->rqsize = 0xffff;
197 212
198 hwif->dma_start = &tc86c001_dma_start; 213 hwif->dma_start = &tc86c001_dma_start;
199
200 if (hwif->cbl != ATA_CBL_PATA40_SHORT) {
201 /*
202 * System Control 1 Register bit 13 (PDIAGN):
203 * 0=80-pin cable, 1=40-pin cable
204 */
205 scr1 = inw(sc_base + 0x00);
206 hwif->cbl = (scr1 & 0x2000) ? ATA_CBL_PATA40 : ATA_CBL_PATA80;
207 }
208} 214}
209 215
210static unsigned int __devinit init_chipset_tc86c001(struct pci_dev *dev, 216static unsigned int __devinit init_chipset_tc86c001(struct pci_dev *dev,