[PATCH] ide: AMD756 no host side cable detection

[linux-2.6-omap-h63xx.git] / drivers / ide / pci / aec62xx.c

diff --git a/drivers/ide/pci/aec62xx.c b/drivers/ide/pci/aec62xx.c
index a21b1e11eef4e5fe0ca849847695b049106fd943..c743e68c33aadca3894017ed2ba1c82cde5cff52 100644 (file)
--- a/drivers/ide/pci/aec62xx.c
+++ b/drivers/ide/pci/aec62xx.c
@@ -262,6 +262,21 @@ static unsigned int __devinit init_chipset_aec62xx(struct pci_dev *dev, const ch
        else
                pci_set_drvdata(dev, (void *) aec6xxx_34_base);
 
+       /* These are necessary to get AEC6280 Macintosh cards to work */
+       if ((dev->device == PCI_DEVICE_ID_ARTOP_ATP865) ||
+           (dev->device == PCI_DEVICE_ID_ARTOP_ATP865R)) {
+               u8 reg49h = 0, reg4ah = 0;
+               /* Clear reset and test bits.  */
+               pci_read_config_byte(dev, 0x49, &reg49h);
+               pci_write_config_byte(dev, 0x49, reg49h & ~0x30);
+               /* Enable chip interrupt output.  */
+               pci_read_config_byte(dev, 0x4a, &reg4ah);
+               pci_write_config_byte(dev, 0x4a, reg4ah & ~0x01);
+               /* Enable burst mode. */
+               pci_read_config_byte(dev, 0x4a, &reg4ah);
+               pci_write_config_byte(dev, 0x4a, reg4ah | 0x80);
+       }
+
        return dev->irq;
 }