*** linux-2.6.28.8/drivers/ide/pmac.c.orig	2009-03-18 13:59:39.645805773 +0900
--- linux-2.6.28.8/drivers/ide/pmac.c	2009-03-18 13:57:38.935818468 +0900
***************
*** 916,926 ****
  	pmac_ide_hwif_t *pmif =
  		(pmac_ide_hwif_t *)dev_get_drvdata(hwif->gendev.parent);
  	struct device_node *np = pmif->node;
  	const char *cable = of_get_property(np, "cable-type", NULL);
  
  	/* Get cable type from device-tree. */
  	if (cable && !strncmp(cable, "80-", 3))
! 		return ATA_CBL_PATA80;
  
  	/*
  	 * G5's seem to have incorrect cable type in device-tree.
--- 916,934 ----
  	pmac_ide_hwif_t *pmif =
  		(pmac_ide_hwif_t *)dev_get_drvdata(hwif->gendev.parent);
  	struct device_node *np = pmif->node;
+ 	struct device_node *root = of_find_node_by_path("/");
  	const char *cable = of_get_property(np, "cable-type", NULL);
+ 	const char *model = of_get_property(root, "model", NULL);
  
  	/* Get cable type from device-tree. */
  	if (cable && !strncmp(cable, "80-", 3))
! 	  {
! 	    if(strncmp(model,"PowerBook5",10)==0)
! 	      /* Some drives fail to detect 80c cable in PowerBook */
! 	      return ATA_CBL_PATA40_SHORT;
! 	    else
! 	      return ATA_CBL_PATA80;
! 	  }
  
  	/*
  	 * G5's seem to have incorrect cable type in device-tree.