patch-2.3.11 linux/drivers/block/ide-pmac.c

• Lines: 116
• Date: Mon Jul 12 16:21:25 1999
• Orig file: v2.3.10/linux/drivers/block/ide-pmac.c
• Orig date: Wed Jun 30 13:38:19 1999

diff -u --recursive --new-file v2.3.10/linux/drivers/block/ide-pmac.c linux/drivers/block/ide-pmac.c
@@ -60,35 +60,44 @@
  * N.B. this can't be an initfunc, because the media-bay task can
  * call ide_[un]register at any time.
  */
-void pmac_ide_init_hwif_ports (	hw_regs_t *hw,
-				ide_ioreg_t data_port,
-				ide_ioreg_t ctrl_port,
-				int *irq)
+void pmac_ide_init_hwif_ports(hw_regs_t *hw,
+			      ide_ioreg_t data_port, ide_ioreg_t ctrl_port,
+			      int *irq)
 {
-	int i, r;
+	int i, ix;
 
 	if (data_port == 0)
 		return;
+
+	for (ix = 0; ix < MAX_HWIFS; ++ix)
+		if (data_port == pmac_ide_regbase[ix])
+			break;
+
+	if (ix >= MAX_HWIFS) {
+		/* Probably a PCI interface... */
+		for (i = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; ++i)
+			hw->io_ports[i] = data_port + i - IDE_DATA_OFFSET;
+		/* XXX is this right? */
+		hw->io_ports[IDE_CONTROL_OFFSET] = 0;
+		if (irq != 0)
+			*irq = 0;
+		return;
+	}
+
 	/* we check only for -EINVAL meaning that we have found a matching
 	   bay but with the wrong device type */ 
-
-	r = check_media_bay_by_base(data_port, MB_CD);
-	if (r == -EINVAL)
+	i = check_media_bay_by_base(data_port, MB_CD);
+	if (i == -EINVAL) {
+		hw->io_ports[IDE_DATA_OFFSET] = 0;
 		return;
-	
-	for ( i = 0; i < 8 ; ++i )
+	}
+
+	for (i = 0; i < 8; ++i)
 		hw->io_ports[i] = data_port + i * 0x10;
 	hw->io_ports[8] = data_port + 0x160;
 
-	if (irq != NULL) {
-		*irq = 0;
-		for (i = 0; i < MAX_HWIFS; ++i) {
-			if (data_port == pmac_ide_regbase[i]) {
-				*irq = pmac_ide_irq[i];
-				break;
-			}
-		}
-	}
+	if (irq != NULL)
+		*irq = pmac_ide_irq[ix];
 }
 
 void pmac_ide_tuneproc(ide_drive_t *drive, byte pio)
@@ -100,10 +109,10 @@
 	pio = ide_get_best_pio_mode(drive, pio, 4, &d);
 	switch (pio) {
 	case 4:
-		out_le32((unsigned *)(IDE_DATA_REG + 0x200), 0x211025);
+		out_le32((unsigned *)(IDE_DATA_REG + 0x200 + _IO_BASE), 0x211025);
 		break;
 	default:
-		out_le32((unsigned *)(IDE_DATA_REG + 0x200), 0x2f8526);
+		out_le32((unsigned *)(IDE_DATA_REG + 0x200 + _IO_BASE), 0x2f8526);
 		break;
 	}
 }
@@ -145,14 +154,36 @@
 	*pp = removables;
 
 	for (i = 0, np = atas; i < MAX_HWIFS && np != NULL; np = np->next) {
+		struct device_node *tp;
+
+		/*
+		 * If this node is not under a mac-io or dbdma node,
+		 * leave it to the generic PCI driver.
+		 */
+		for (tp = np->parent; tp != 0; tp = tp->parent)
+			if (tp->type && (strcmp(tp->type, "mac-io") == 0
+					 || strcmp(tp->type, "dbdma") == 0))
+				break;
+		if (tp == 0)
+			continue;
+
 		if (np->n_addrs == 0) {
 			printk(KERN_WARNING "ide: no address for device %s\n",
 			       np->full_name);
 			continue;
 		}
 
-		base = (unsigned long) ioremap(np->addrs[0].address, 0x200);
-		
+		/*
+		 * If this slot is taken (e.g. by ide-pci.c) try the next one.
+		 */
+		while (i < MAX_HWIFS
+		       && ide_hwifs[i].io_ports[IDE_DATA_OFFSET] != 0)
+			++i;
+		if (i >= MAX_HWIFS)
+			break;
+
+		base = (unsigned long) ioremap(np->addrs[0].address, 0x200) - _IO_BASE;
+
 		/* XXX This is bogus. Should be fixed in the registry by checking
 		   the kind of host interrupt controller, a bit like gatwick
 		   fixes in irq.c