[PATCH] ide: AMD756 no host side cable detection

>From http://marc.theaimsgroup.com/?l=linux-kernel&m=110304128900342&w=2

AMD756 doesn't support host side cable detection. Do disk side only and
don't advice obsolete options.

Acked-by: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

diff --git a/drivers/ide/pci/amd74xx.c b/drivers/ide/pci/amd74xx.c
index 21965e5..b22ee54 100644 (file)
--- a/drivers/ide/pci/amd74xx.c
+++ b/drivers/ide/pci/amd74xx.c
@@ -347,10 +347,8 @@ static unsigned int __devinit init_chipset_amd74xx(struct pci_dev *dev, const ch
                        break;
 
                case AMD_UDMA_66:
-                       pci_read_config_dword(dev, AMD_UDMA_TIMING, &u);
-                       for (i = 24; i >= 0; i -= 8)
-                               if ((u >> i) & 4)
-                                       amd_80w |= (1 << (1 - (i >> 4)));
+                       /* no host side cable detection */
+                       amd_80w = 0x03;
                        break;
        }
 
@@ -386,8 +384,6 @@ static unsigned int __devinit init_chipset_amd74xx(struct pci_dev *dev, const ch
        if (amd_clock < 20000 || amd_clock > 50000) {
                printk(KERN_WARNING "%s: User given PCI clock speed impossible (%d), using 33 MHz instead.\n",
                        amd_chipset->name, amd_clock);
-               printk(KERN_WARNING "%s: Use ide0=ata66 if you want to assume 80-wire cable\n",
-                       amd_chipset->name);
                amd_clock = 33333;
        }