"hdx=remap63"         : remap the drive: add 63 to all sector numbers
                          (for DM OnTrack)
- 
+
+ "idex=noautotune"     : driver will NOT attempt to tune interface speed
+
  "hdx=autotune"                : driver will attempt to tune interface speed
                          to the fastest PIO mode supported,
                          if possible for this drive only.
  "idex=base,ctl"       : specify both base and ctl
 
  "idex=base,ctl,irq"   : specify base, ctl, and irq number
- 
- "idex=autotune"       : driver will attempt to tune interface speed
-                         to the fastest PIO mode supported,
-                         for all drives on this interface.
-                         Not fully supported by all chipset types,
-                         and quite likely to cause trouble with
-                         older/odd IDE drives.
-
- "idex=noautotune"     : driver will NOT attempt to tune interface speed 
-                         This is the default for most chipsets,
-                         except the cmd640.
 
  "idex=serialize"      : do not overlap operations on idex. Please note
                          that you will have to specify this option for
 
         */
        if (s[0] == 'h' && s[1] == 'd' && s[2] >= 'a' && s[2] <= max_drive) {
                const char *hd_words[] = {
-                       "none", "noprobe", "nowerr", "cdrom", "serialize",
+                       "none", "noprobe", "nowerr", "cdrom", "minus5",
                        "autotune", "noautotune", "minus8", "swapdata", "bswap",
                        "noflush", "remap", "remap63", "scsi", NULL };
                unit = s[2] - 'a';
                                drive->ready_stat = 0;
                                hwif->noprobe = 0;
                                goto done;
-                       case -5: /* "serialize" */
-                               printk(" -- USE \"ide%d=serialize\" INSTEAD", hw);
-                               goto do_serialize;
                        case -6: /* "autotune" */
                                drive->autotune = IDE_TUNE_AUTO;
                                goto obsolete_option;
                 * (-8, -9, -10) are reserved to ease the hardcoding.
                 */
                static const char *ide_words[] = {
-                       "noprobe", "serialize", "autotune", "noautotune", 
+                       "noprobe", "serialize", "minus3", "minus4",
                        "reset", "dma", "ata66", "minus8", "minus9",
                        "minus10", "four", "qd65xx", "ht6560b", "cmd640_vlb",
                        "dtc2278", "umc8672", "ali14xx", NULL };
                                hwif->chipset = mate->chipset = ide_4drives;
                                mate->irq = hwif->irq;
                                memcpy(mate->io_ports, hwif->io_ports, sizeof(hwif->io_ports));
-                               goto do_serialize;
+                               hwif->mate = mate;
+                               mate->mate = hwif;
+                               hwif->serialized = mate->serialized = 1;
+                               goto obsolete_option;
                        }
 #endif /* CONFIG_BLK_DEV_4DRIVES */
                        case -10: /* minus10 */
                        case -9: /* minus9 */
                        case -8: /* minus8 */
+                       case -4:
+                       case -3:
                                goto bad_option;
                        case -7: /* ata66 */
 #ifdef CONFIG_BLK_DEV_IDEPCI
                        case -5: /* "reset" */
                                hwif->reset = 1;
                                goto obsolete_option;
-                       case -4: /* "noautotune" */
-                               hwif->drives[0].autotune = IDE_TUNE_NOAUTO;
-                               hwif->drives[1].autotune = IDE_TUNE_NOAUTO;
-                               goto obsolete_option;
-                       case -3: /* "autotune" */
-                               hwif->drives[0].autotune = IDE_TUNE_AUTO;
-                               hwif->drives[1].autotune = IDE_TUNE_AUTO;
-                               goto obsolete_option;
                        case -2: /* "serialize" */
-                       do_serialize:
                                hwif->mate = &ide_hwifs[hw^1];
                                hwif->mate->mate = hwif;
                                hwif->serialized = hwif->mate->serialized = 1;
 
  * Please set local bus speed using kernel parameter idebus
  *     for example, "idebus=33" stands for 33Mhz VLbus
  * To activate controller support, use "ide0=qd65xx"
- * To enable tuning, use "ide0=autotune"
- * To enable second channel tuning (qd6580 only), use "ide1=autotune"
+ * To enable tuning, use "hda=autotune hdb=autotune"
+ * To enable 2nd channel tuning (qd6580 only), use "hdc=autotune hdd=autotune"
  */
 
 /*