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authorPaul Mackerras <paulus@samba.org>2006-02-08 09:43:08 +1100
committerPaul Mackerras <paulus@samba.org>2006-02-08 09:43:08 +1100
commit8f75015f33c3005e0bbf83ffc0d5e0b4262cc03d (patch)
treea3c34ad86ccdc904bb43af6cd1cb163231c29276 /drivers/ide/pci/aec62xx.c
parent076d022c566fddde41fd4a858dd24bacad8304d7 (diff)
parente060e084e7d9e1c62d02cb6b8d3fe07db5317eaa (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
Diffstat (limited to 'drivers/ide/pci/aec62xx.c')
-rw-r--r--drivers/ide/pci/aec62xx.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/ide/pci/aec62xx.c b/drivers/ide/pci/aec62xx.c
index a21b1e11eef..c743e68c33a 100644
--- 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;
}