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Submitter Myles Watson
Date 2010-06-09 14:57:04
Message ID <AANLkTilYFrq7PgDTJJVh05L79wdadM6m7QSvKII-kA1g@mail.gmail.com>
Download mbox | patch
Permalink /patch/1494/
State Superseded
Headers show

Comments

Myles Watson - 2010-06-09 14:57:04
Same conversion as with resources from static arrays to lists, except
there is no free list.

Converting resource arrays to lists reduced the size of each device
struct from 1092 to 228 bytes.
Converting link arrays to lists reduced the size of each device struct
from 228 to 68 bytes.

fam10_pci.diff makes fam10 and k8 northbridge code a little more
similar before the conversion.

The next step for fam10 and k8 would be to reorganize the links so
that the southbridge link is always first.  This would make some of
the code a lot easier to follow.  Something to consider would be
adding link numbers to the device tree, since that would allow the
southbridge link to start in the correct place.

Signed-off-by: Myles Watson <mylesgw@gmail.com>

Abuild tested.  Boot tested on serengeti_cheetah,
serengeti_cheetah_fam10, and qemu.

Thanks,
Myles

Patch

Index: svn/src/include/device/device.h
===================================================================
--- svn.orig/src/include/device/device.h
+++ svn/src/include/device/device.h
@@ -40,8 +40,9 @@  struct device_operations {
 struct bus {
 	device_t 	dev;		/* This bridge device */
 	device_t 	children;	/* devices behind this bridge */
+	struct bus	*next;		/* The next bridge on this device */
 	unsigned	bridge_ctrl;	/* Bridge control register */
-	unsigned char	link;		/* The index of this link */
+	unsigned char	link_num;	/* The index of this link */
 	uint16_t	secondary; 	/* secondary bus number */
 	uint16_t	subordinate;	/* max subordinate bus number */
 	unsigned char   cap;		/* PCi capability offset */
@@ -49,8 +50,6 @@  struct bus {
 	unsigned	disable_relaxed_ordering : 1;
 };
 
-#define MAX_RESOURCES 24
-#define MAX_LINKS    8
 /*
  * There is one device structure for each slot-number/function-number
  * combination:
@@ -79,9 +78,7 @@  struct device {
 	/* links are (downstream) buses attached to the device, usually a leaf
 	 * device with no children has 0 buses attached and a bridge has 1 bus
 	 */
-	struct bus link[MAX_LINKS];
-	/* number of buses attached to the device */
-	unsigned int links;
+	struct bus *link_list;
 
 	struct device_operations *ops;
 	const struct chip_operations *chip_ops;
@@ -96,6 +93,7 @@  extern struct device	dev_root;
 extern struct device	*all_devices;	/* list of all devices */
 
 extern struct resource	*free_resources;
+extern struct bus	*free_links;
 
 /* Generic device interface functions */
 device_t alloc_dev(struct bus *parent, struct device_path *path);
Index: svn/src/devices/device.c
===================================================================
--- svn.orig/src/devices/device.c
+++ svn/src/devices/device.c
@@ -66,7 +66,6 @@  DECLARE_SPIN_LOCK(dev_lock)
 device_t alloc_dev(struct bus *parent, struct device_path *path)
 {
 	device_t dev, child;
-	int link;
 
 	spin_lock(&dev_lock);
 
@@ -82,12 +81,6 @@  device_t alloc_dev(struct bus *parent, s
 	memset(dev, 0, sizeof(*dev));
 	memcpy(&dev->path, path, sizeof(*path));
 
-	/* Initialize the back pointers in the link fields. */
-	for (link = 0; link < MAX_LINKS; link++) {
-		dev->link[link].dev = dev;
-		dev->link[link].link = link;
-	}
-
 	/* By default devices are enabled. */
 	dev->enabled = 1;
 
@@ -132,11 +125,11 @@  static void read_resources(struct bus *b
 	struct device *curdev;
 
 	printk(BIOS_SPEW, "%s %s bus %x link: %d\n", dev_path(bus->dev), __func__,
-		    bus->secondary, bus->link);
+		    bus->secondary, bus->link_num);
 
 	/* Walk through all devices and find which resources they need. */
 	for (curdev = bus->children; curdev; curdev = curdev->sibling) {
-		int i;
+		struct bus *link;
 		if (!curdev->enabled) {
 			continue;
 		}
@@ -148,11 +141,11 @@  static void read_resources(struct bus *b
 		curdev->ops->read_resources(curdev);
 
 		/* Read in the resources behind the current device's links. */
-		for (i = 0; i < curdev->links; i++)
-			read_resources(&curdev->link[i]);
+		for (link = curdev->link_list; link; link = link->next)
+			read_resources(link);
 	}
 	printk(BIOS_SPEW, "%s read_resources bus %d link: %d done\n",
-		    dev_path(bus->dev), bus->secondary, bus->link);
+		    dev_path(bus->dev), bus->secondary, bus->link_num);
 }
 
 struct pick_largest_state {
@@ -257,13 +250,13 @@  static void compute_resources(struct bus
 	for (dev = bus->children; dev; dev = dev->sibling) {
 		struct resource *child_bridge;
 
-		if (!dev->links)
+		if (!dev->link_list)
 			continue;
 
 		/* Find the resources with matching type flags. */
 		for (child_bridge = dev->resource_list; child_bridge;
 		     child_bridge = child_bridge->next) {
-			unsigned link;
+			struct bus* link;
 
 			if (!(child_bridge->flags & IORESOURCE_BRIDGE) ||
 			    (child_bridge->flags & type_mask) != type)
@@ -275,8 +268,15 @@  static void compute_resources(struct bus
 			 * need it separated.  Add the PREFETCH flag to the
 			 * type_mask and type.
 			 */
-			link = IOINDEX_LINK(child_bridge->index);
-			compute_resources(&dev->link[link], child_bridge,
+			link = dev->link_list;
+			while (link && link->link_num !=
+					IOINDEX_LINK(child_bridge->index))
+				link = link->next;
+			if (link == NULL)
+				printk(BIOS_ERR, "link %ld not found on %s\n",
+				       IOINDEX_LINK(child_bridge->index),
+				       dev_path(dev));
+			compute_resources(link, child_bridge,
 					  type_mask | IORESOURCE_PREFETCH,
 					  type | (child_bridge->flags &
 						  IORESOURCE_PREFETCH));
@@ -505,13 +505,13 @@  static void allocate_resources(struct bu
 	for (dev = bus->children; dev; dev = dev->sibling) {
 		struct resource *child_bridge;
 
-		if (!dev->links)
+		if (!dev->link_list)
 			continue;
 
 		/* Find the resources with matching type flags. */
 		for (child_bridge = dev->resource_list; child_bridge;
 		     child_bridge = child_bridge->next) {
-			unsigned link;
+			struct bus* link;
 
 			if (!(child_bridge->flags & IORESOURCE_BRIDGE) ||
 			    (child_bridge->flags & type_mask) != type)
@@ -523,8 +523,15 @@  static void allocate_resources(struct bu
 			 * need it separated.  Add the PREFETCH flag to the
 			 * type_mask and type.
 			 */
-			link = IOINDEX_LINK(child_bridge->index);
-			allocate_resources(&dev->link[link], child_bridge,
+			link = dev->link_list;
+			while (link && link->link_num !=
+			               IOINDEX_LINK(child_bridge->index))
+				link = link->next;
+			if (link == NULL)
+				printk(BIOS_ERR, "link %ld not found on %s\n",
+				       IOINDEX_LINK(child_bridge->index),
+				       dev_path(dev));
+			allocate_resources(link, child_bridge,
 					   type_mask | IORESOURCE_PREFETCH,
 					   type | (child_bridge->flags &
 						   IORESOURCE_PREFETCH));
@@ -551,7 +558,7 @@  static void constrain_resources(struct d
 	struct device *child;
 	struct resource *res;
 	struct resource *lim;
-	int i;
+	struct bus *link;
 
 	printk(BIOS_SPEW, "%s: %s\n", __func__, dev_path(dev));
 
@@ -592,8 +599,8 @@  static void constrain_resources(struct d
 	}
 
 	/* Descend into every enabled child and look for fixed resources. */
-	for (i = 0; i < dev->links; i++)
-		for (child = dev->link[i].children; child;
+	for (link = dev->link_list; link; link = link->next)
+		for (child = link->children; child;
 		     child = child->sibling)
 			if (child->enabled)
 				constrain_resources(child, limits);
@@ -757,7 +764,7 @@  void assign_resources(struct bus *bus)
 	struct device *curdev;
 
 	printk(BIOS_SPEW, "%s assign_resources, bus %d link: %d\n",
-		    dev_path(bus->dev), bus->secondary, bus->link);
+		    dev_path(bus->dev), bus->secondary, bus->link_num);
 
 	for (curdev = bus->children; curdev; curdev = curdev->sibling) {
 		if (!curdev->enabled || !curdev->resource_list) {
@@ -771,7 +778,7 @@  void assign_resources(struct bus *bus)
 		curdev->ops->set_resources(curdev);
 	}
 	printk(BIOS_SPEW, "%s assign_resources, bus %d link: %d\n",
-		    dev_path(bus->dev), bus->secondary, bus->link);
+		    dev_path(bus->dev), bus->secondary, bus->link_num);
 }
 
 /**
@@ -846,12 +853,12 @@  unsigned int scan_bus(struct device *bus
 
 	do_scan_bus = 1;
 	while (do_scan_bus) {
-		int link;
+		struct bus *link;
 		new_max = busdev->ops->scan_bus(busdev, max);
 		do_scan_bus = 0;
-		for (link = 0; link < busdev->links; link++) {
-			if (busdev->link[link].reset_needed) {
-				if (reset_bus(&busdev->link[link])) {
+		for (link = busdev->link_list; link; link = link->next) {
+			if (link->reset_needed) {
+				if (reset_bus(link)) {
 					do_scan_bus = 1;
 				} else {
 					busdev->bus->reset_needed = 1;
@@ -940,30 +947,30 @@  void dev_configure(void)
 	/* Read the resources for the entire tree. */
 
 	printk(BIOS_INFO, "Reading resources...\n");
-	read_resources(&root->link[0]);
+	read_resources(root->link_list);
 	printk(BIOS_INFO, "Done reading resources.\n");
 
 	print_resource_tree(root, BIOS_SPEW, "After reading.");
 
 	/* Compute resources for all domains. */
-	for (child = root->link[0].children; child; child = child->sibling) {
+	for (child = root->link_list->children; child; child = child->sibling) {
 		if (!(child->path.type == DEVICE_PATH_PCI_DOMAIN))
 			continue;
 		for (res = child->resource_list; res; res = res->next) {
 			if (res->flags & IORESOURCE_FIXED)
 				continue;
 			if (res->flags & IORESOURCE_PREFETCH) {
-				compute_resources(&child->link[0],
+				compute_resources(child->link_list,
 					       res, MEM_MASK, PREF_TYPE);
 				continue;
 			}
 			if (res->flags & IORESOURCE_MEM) {
-				compute_resources(&child->link[0],
+				compute_resources(child->link_list,
 					       res, MEM_MASK, MEM_TYPE);
 				continue;
 			}
 			if (res->flags & IORESOURCE_IO) {
-				compute_resources(&child->link[0],
+				compute_resources(child->link_list,
 					       res, IO_MASK, IO_TYPE);
 				continue;
 			}
@@ -971,14 +978,14 @@  void dev_configure(void)
 	}
 
 	/* For all domains. */
-	for (child = root->link[0].children; child; child=child->sibling)
+	for (child = root->link_list->children; child; child=child->sibling)
 		if (child->path.type == DEVICE_PATH_PCI_DOMAIN)
 			avoid_fixed_resources(child);
 
 	/* Now we need to adjust the resources. MEM resources need to start at
 	 * the highest address managable.
 	 */
-	for (child = root->link[0].children; child; child = child->sibling) {
+	for (child = root->link_list->children; child; child = child->sibling) {
 		if (child->path.type != DEVICE_PATH_PCI_DOMAIN)
 			continue;
 		for (res = child->resource_list; res; res = res->next) {
@@ -991,30 +998,30 @@  void dev_configure(void)
 
 	/* Store the computed resource allocations into device registers ... */
 	printk(BIOS_INFO, "Setting resources...\n");
-	for (child = root->link[0].children; child; child = child->sibling) {
+	for (child = root->link_list->children; child; child = child->sibling) {
 		if (!(child->path.type == DEVICE_PATH_PCI_DOMAIN))
 			continue;
 		for (res = child->resource_list; res; res = res->next) {
 			if (res->flags & IORESOURCE_FIXED)
 				continue;
 			if (res->flags & IORESOURCE_PREFETCH) {
-				allocate_resources(&child->link[0],
+				allocate_resources(child->link_list,
 					       res, MEM_MASK, PREF_TYPE);
 				continue;
 			}
 			if (res->flags & IORESOURCE_MEM) {
-				allocate_resources(&child->link[0],
+				allocate_resources(child->link_list,
 					       res, MEM_MASK, MEM_TYPE);
 				continue;
 			}
 			if (res->flags & IORESOURCE_IO) {
-				allocate_resources(&child->link[0],
+				allocate_resources(child->link_list,
 					       res, IO_MASK, IO_TYPE);
 				continue;
 			}
 		}
 	}
-	assign_resources(&root->link[0]);
+	assign_resources(root->link_list);
 	printk(BIOS_INFO, "Done setting resources.\n");
 	print_resource_tree(root, BIOS_SPEW, "After assigning values.");
 
@@ -1055,7 +1062,7 @@  void dev_initialize(void)
 			if (dev->path.type == DEVICE_PATH_I2C) {
 				printk(BIOS_DEBUG, "smbus: %s[%d]->",
 					     dev_path(dev->bus->dev),
-					     dev->bus->link);
+					     dev->bus->link_num);
 			}
 			printk(BIOS_DEBUG, "%s init\n", dev_path(dev));
 			dev->initialized = 1;
Index: svn/src/cpu/amd/sc520/sc520.c
===================================================================
--- svn.orig/src/cpu/amd/sc520/sc520.c
+++ svn/src/cpu/amd/sc520/sc520.c
@@ -130,8 +130,8 @@  static void pci_domain_set_resources(dev
 	device_t mc_dev;
         uint32_t pci_tolm;
   printk(BIOS_SPEW, "%s\n", __func__);
-        pci_tolm = find_pci_tolm(&dev->link[0]);
-	mc_dev = dev->link[0].children;
+        pci_tolm = find_pci_tolm(dev->link_list);
+	mc_dev = dev->link_list->children;
 	if (mc_dev) {
 		unsigned long tomk, tolmk;
 		//		unsigned char rambits;
@@ -168,7 +168,7 @@  static void pci_domain_set_resources(dev
 		idx = 10;
 		ram_resource(dev, idx++, 0, tolmk);
 	}
-	assign_resources(&dev->link[0]);
+	assign_resources(dev->link_list);
 }
 
 #if 0
Index: svn/src/devices/cardbus_device.c
===================================================================
--- svn.orig/src/devices/cardbus_device.c
+++ svn/src/devices/cardbus_device.c
@@ -158,7 +158,7 @@  void cardbus_enable_resources(device_t d
 {
 	uint16_t ctrl;
 	ctrl = pci_read_config16(dev, PCI_CB_BRIDGE_CONTROL);
-	ctrl |= (dev->link[0].bridge_ctrl & (
+	ctrl |= (dev->link_list->bridge_ctrl & (
 			PCI_BRIDGE_CTL_PARITY |
 			PCI_BRIDGE_CTL_SERR |
 			PCI_BRIDGE_CTL_NO_ISA |
@@ -178,8 +178,8 @@  struct device_operations default_cardbus
 	.read_resources   = cardbus_read_resources,
 	.set_resources    = pci_dev_set_resources,
 	.enable_resources = cardbus_enable_resources,
-	.init		  = 0,
-	.scan_bus	  = pci_scan_bridge,
+	.init			  = 0,
+	.scan_bus		  = pci_scan_bridge,
 	.enable           = 0,
 	.reset_bus        = pci_bus_reset,
 };
Index: svn/src/devices/oprom/yabel/device.c
===================================================================
--- svn.orig/src/devices/oprom/yabel/device.c
+++ svn/src/devices/oprom/yabel/device.c
@@ -45,7 +45,7 @@  biosemu_dev_get_addr_info(void)
 {
 	int taa_index = 0;
 	struct resource *r;
-	u8 bus = bios_device.dev->bus->link;
+	u8 bus = bios_device.dev->bus->link_num;
 	u16 devfn = bios_device.dev->path.pci.devfn;
 
 	bios_device.bus =  bus;
Index: svn/src/devices/pci_device.c
===================================================================
--- svn.orig/src/devices/pci_device.c
+++ svn/src/devices/pci_device.c
@@ -551,15 +551,13 @@  static void pci_set_resource(struct devi
 void pci_dev_set_resources(struct device *dev)
 {
 	struct resource *res;
-	unsigned link;
+	struct bus *bus;
 	u8 line;
 
 	for (res = dev->resource_list; res; res = res->next) {
 		pci_set_resource(dev, res);
 	}
-	for (link = 0; link < dev->links; link++) {
-		struct bus *bus;
-		bus = &dev->link[link];
+	for (bus = dev->link_list; bus; bus = bus->next) {
 		if (bus->children) {
 			assign_resources(bus);
 		}
@@ -614,10 +612,10 @@  void pci_bus_enable_resources(struct dev
 	/* Enable I/O in command register if there is VGA card
 	 * connected with (even it does not claim I/O resource).
 	 */
-	if (dev->link[0].bridge_ctrl & PCI_BRIDGE_CTL_VGA)
+	if (dev->link_list->bridge_ctrl & PCI_BRIDGE_CTL_VGA)
 		dev->command |= PCI_COMMAND_IO;
 	ctrl = pci_read_config16(dev, PCI_BRIDGE_CONTROL);
-	ctrl |= dev->link[0].bridge_ctrl;
+	ctrl |= dev->link_list->bridge_ctrl;
 	ctrl |= (PCI_BRIDGE_CTL_PARITY + PCI_BRIDGE_CTL_SERR);	/* Error check. */
 	printk(BIOS_DEBUG, "%s bridge ctrl <- %04x\n", dev_path(dev), ctrl);
 	pci_write_config16(dev, PCI_BRIDGE_CONTROL, ctrl);
@@ -1102,9 +1100,17 @@  unsigned int do_pci_scan_bridge(struct d
 
 	printk(BIOS_SPEW, "%s for %s\n", __func__, dev_path(dev));
 
-	bus = &dev->link[0];
-	bus->dev = dev;
-	dev->links = 1;
+	if (dev->link_list == NULL) {
+		struct bus *link;
+		link = malloc(sizeof(*link));
+		if (link == NULL)
+			die("Couldn't allocate a link!\n");
+		memset(link, 0, sizeof(*link));
+		link->dev = dev;
+		dev->link_list = link;
+	}
+
+	bus = dev->link_list;
 
 	/* Set up the primary, secondary and subordinate bus numbers. We have
 	 * no idea how many buses are behind this bridge yet, so we set the
@@ -1179,7 +1185,7 @@  unsigned int pci_scan_bridge(struct devi
  */
 unsigned int pci_domain_scan_bus(device_t dev, unsigned int max)
 {
-	max = pci_scan_bus(&dev->link[0], PCI_DEVFN(0, 0), 0xff, max);
+	max = pci_scan_bus(dev->link_list, PCI_DEVFN(0, 0), 0xff, max);
 	return max;
 }
 
Index: svn/src/devices/pcix_device.c
===================================================================
--- svn.orig/src/devices/pcix_device.c
+++ svn/src/devices/pcix_device.c
@@ -61,20 +61,11 @@  static void pcix_tune_dev(device_t dev)
 	}
 }
 
-unsigned int pcix_scan_bus(struct bus *bus,
-	unsigned min_devfn, unsigned max_devfn, unsigned int max)
+static void pcix_tune_bus(struct bus *bus)
 {
 	device_t child;
-	max = pci_scan_bus(bus, min_devfn, max_devfn, max);
-	for(child = bus->children; child; child = child->sibling) {
-		if (	(child->path.pci.devfn < min_devfn) ||
-			(child->path.pci.devfn > max_devfn))
-		{
-			continue;
-		}
+	for(child = bus->children; child; child = child->sibling)
 		pcix_tune_dev(child);
-	}
-	return max;
 }
 
 const char *pcix_speed(unsigned sstatus)
@@ -124,18 +115,17 @@  unsigned int pcix_scan_bridge(device_t d
 	unsigned pos;
 	unsigned sstatus;
 
+	max = do_pci_scan_bridge(dev, max, pci_scan_bus);
 	/* Find the PCI-X capability */
 	pos = pci_find_capability(dev, PCI_CAP_ID_PCIX);
 	sstatus = pci_read_config16(dev, pos + PCI_X_SEC_STATUS);
 
-	if (PCI_X_SSTATUS_MFREQ(sstatus) == PCI_X_SSTATUS_CONVENTIONAL_PCI) {
-		max = do_pci_scan_bridge(dev, max, pci_scan_bus);
-	} else {
-		max = do_pci_scan_bridge(dev, max, pcix_scan_bus);
+	if (PCI_X_SSTATUS_MFREQ(sstatus) != PCI_X_SSTATUS_CONVENTIONAL_PCI) {
+		pcix_tune_bus(dev->link_list);
 	}
 
 	/* Print the PCI-X bus speed */
-	printk(BIOS_DEBUG, "PCI: %02x: %s\n", dev->link[0].secondary, pcix_speed(sstatus));
+	printk(BIOS_DEBUG, "PCI: %02x: %s\n", dev->link_list->secondary, pcix_speed(sstatus));
 
 	return max;
 }
Index: svn/src/devices/root_device.c
===================================================================
--- svn.orig/src/devices/root_device.c
+++ svn/src/devices/root_device.c
@@ -75,17 +75,17 @@  static int smbus_max = 0;
 unsigned int scan_static_bus(device_t bus, unsigned int max)
 {
 	device_t child;
-	unsigned link;
+	struct bus* link;
 
 	printk(BIOS_SPEW, "%s for %s\n", __func__, dev_path(bus));
 
-	for(link = 0; link < bus->links; link++) {
+	for(link = bus->link_list; link; link = link->next) {
 		/* for smbus bus enumerate */
-		child = bus->link[link].children;
+		child = link->children;
 		if(child && child->path.type == DEVICE_PATH_I2C) {
-			bus->link[link].secondary = ++smbus_max;
+			link->secondary = ++smbus_max;
 		}
-		for(child = bus->link[link].children; child; child = child->sibling) {
+		for(child =link->children; child; child = child->sibling) {
 			if (child->chip_ops && child->chip_ops->enable_dev) {
 				child->chip_ops->enable_dev(child);
 			}
@@ -94,15 +94,15 @@  unsigned int scan_static_bus(device_t bu
 			}
  			if (child->path.type == DEVICE_PATH_I2C) {
  				printk(BIOS_DEBUG, "smbus: %s[%d]->",
-					dev_path(child->bus->dev), child->bus->link );
+					dev_path(child->bus->dev), child->bus->link_num );
 			}
 			printk(BIOS_DEBUG, "%s %s\n",
 				dev_path(child),
 				child->enabled?"enabled": "disabled");
 		}
 	}
-	for(link = 0; link < bus->links; link++) {
-		for(child = bus->link[link].children; child; child = child->sibling) {
+	for(link = bus->link_list; link; link = link->next) {
+		for(child = link->children; child; child = child->sibling) {
 			if (!child->ops || !child->ops->scan_bus)
 				continue;
 			printk(BIOS_SPEW, "%s scanning...\n", dev_path(child));
@@ -130,10 +130,10 @@  unsigned int scan_static_bus(device_t bu
  */
 void enable_childrens_resources(device_t dev)
 {
-	unsigned link;
-	for(link = 0; link < dev->links; link++) {
+	struct bus *link;
+	for(link = dev->link_list; link; link = link->next) {
 		device_t child;
-		for(child = dev->link[link].children; child; child = child->sibling) {
+		for(child = link->children; child; child = child->sibling) {
 			enable_resources(child);
 		}
 	}
Index: svn/src/devices/smbus_ops.c
===================================================================
--- svn.orig/src/devices/smbus_ops.c
+++ svn/src/devices/smbus_ops.c
@@ -58,7 +58,7 @@  int smbus_set_link(device_t dev)
 //		printk(BIOS_INFO, " %s[%d] -> ", dev_path(pbus_a[i]->dev), pbus_a[i]->link);
         	if (ops_smbus_bus(get_pbus_smbus(pbus_a[i]->dev))) {
                 	if (pbus_a[i]->dev->ops && pbus_a[i]->dev->ops->set_link)
-                        	pbus_a[i]->dev->ops->set_link(pbus_a[i]->dev, pbus_a[i]->link);
+                        	pbus_a[i]->dev->ops->set_link(pbus_a[i]->dev, pbus_a[i]->link_num);
 		}
 	}
 //	printk(BIOS_INFO, " %s\n", dev_path(dev));
Index: svn/src/devices/device_util.c
===================================================================
--- svn.orig/src/devices/device_util.c
+++ svn/src/devices/device_util.c
@@ -40,7 +40,7 @@ 
 device_t find_dev_path(struct bus *parent, struct device_path *path)
 {
 	device_t child;
-	for(child = parent->children; child; child = child->sibling) {
+	for (child = parent->children; child; child = child->sibling) {
 		if (path_eq(path, &child->path)) {
 			break;
 		}
@@ -213,7 +213,7 @@  const char *dev_path(device_t dev)
 const char *bus_path(struct bus *bus)
 {
 	static char buffer[BUS_PATH_MAX];
-	sprintf(buffer, "%s,%d", dev_path(bus->dev), bus->link);
+	sprintf(buffer, "%s,%d", dev_path(bus->dev), bus->link_num);
 	return buffer;
 }
 
@@ -303,7 +303,7 @@  void compact_resources(device_t dev)
 {
 	struct resource *res, *next, *prev = NULL;
 	/* Move all of the free resources to the end */
-	for(res = dev->resource_list; res; res = next) {
+	for (res = dev->resource_list; res; res = next) {
 		next = res->next;
 		if (!res->flags)
 			free_resource(dev, res, prev);
@@ -323,7 +323,7 @@  struct resource *probe_resource(device_t
 {
 	struct resource *res;
 	/* See if there is a resource with the appropriate index */
-	for(res = dev->resource_list; res; res = res->next) {
+	for (res = dev->resource_list; res; res = res->next) {
 		if (res->index == index)
 			break;
 	}
@@ -496,9 +496,9 @@  void report_resource_stored(device_t dev
 		buf[0] = '\0';
 		if (resource->flags & IORESOURCE_PCI_BRIDGE) {
 #if CONFIG_PCI_BUS_SEGN_BITS
-			sprintf(buf, "bus %04x:%02x ", dev->bus->secondary>>8, dev->link[0].secondary & 0xff);
+			sprintf(buf, "bus %04x:%02x ", dev->bus->secondary>>8, dev->link_list->secondary & 0xff);
 #else
-			sprintf(buf, "bus %02x ", dev->link[0].secondary);
+			sprintf(buf, "bus %02x ", dev->link_list->secondary);
 #endif
 		}
 		printk(BIOS_DEBUG,
@@ -518,11 +518,11 @@  void search_bus_resources(struct bus *bu
 	resource_search_t search, void *gp)
 {
 	struct device *curdev;
-	for(curdev = bus->children; curdev; curdev = curdev->sibling) {
+	for (curdev = bus->children; curdev; curdev = curdev->sibling) {
 		struct resource *res;
 		/* Ignore disabled devices */
 		if (!curdev->enabled) continue;
-		for(res = curdev->resource_list; res; res = res->next) {
+		for (res = curdev->resource_list; res; res = res->next) {
 			/* If it isn't the right kind of resource ignore it */
 			if ((res->flags & type_mask) != type) {
 				continue;
@@ -530,7 +530,9 @@  void search_bus_resources(struct bus *bu
 			/* If it is a subtractive resource recurse */
 			if (res->flags & IORESOURCE_SUBTRACTIVE) {
 				struct bus * subbus;
-				subbus = &curdev->link[IOINDEX_SUBTRACTIVE_LINK(res->index)];
+				for (subbus = curdev->link_list; subbus; subbus = subbus->next)
+					if (subbus->link_num == IOINDEX_SUBTRACTIVE_LINK(res->index))
+						break;
 				search_bus_resources(subbus, type_mask, type, search, gp);
 				continue;
 			}
@@ -544,11 +546,11 @@  void search_global_resources(
 	resource_search_t search, void *gp)
 {
 	struct device *curdev;
-	for(curdev = all_devices; curdev; curdev = curdev->next) {
+	for (curdev = all_devices; curdev; curdev = curdev->next) {
 		struct resource *res;
 		/* Ignore disabled devices */
 		if (!curdev->enabled) continue;
-		for(res = curdev->resource_list; res; res = res->next) {
+		for (res = curdev->resource_list; res; res = res->next) {
 			/* If it isn't the right kind of resource ignore it */
 			if ((res->flags & type_mask) != type) {
 				continue;
@@ -579,10 +581,10 @@  void dev_set_enabled(device_t dev, int e
 void disable_children(struct bus *bus)
 {
 	device_t child;
-	for(child = bus->children; child; child = child->sibling) {
-		int link;
-		for(link = 0; link < child->links; link++) {
-			disable_children(&child->link[link]);
+	for (child = bus->children; child; child = child->sibling) {
+		struct bus *link;
+		for (link = child->link_list; link; link = link->next) {
+			disable_children(link);
 		}
 		dev_set_enabled(child, 0);
 	}
@@ -590,8 +592,9 @@  void disable_children(struct bus *bus)
 
 static void resource_tree(struct device *root, int debug_level, int depth)
 {
-	int i = 0, link = 0;
+	int i = 0;
 	struct device *child;
+	struct bus *link;
 	struct resource *res;
 	char indent[30];	/* If your tree has more levels, it's wrong. */
 
@@ -599,10 +602,12 @@  static void resource_tree(struct device 
 		indent[i] = ' ';
 	indent[i] = '\0';
 
-	do_printk(debug_level, "%s%s links %x child on link 0", indent,
-		  dev_path(root), root->links);
-	do_printk(debug_level, " %s\n", root->link[0].children ?
-		  dev_path(root->link[0].children) : "NULL");
+ 	do_printk(BIOS_DEBUG, "%s%s", indent, dev_path(root));
+ 	if (root->link_list && root->link_list->children)
+ 		do_printk(BIOS_DEBUG, " child on link 0 %s",
+ 			  dev_path(root->link_list->children));
+ 	do_printk(BIOS_DEBUG, "\n");
+
 	for (res = root->resource_list; res; res = res->next) {
 		do_printk(debug_level,
 			  "%s%s resource base %llx size %llx align %d gran %d limit %llx flags %lx index %lx\n",
@@ -612,9 +617,8 @@  static void resource_tree(struct device 
 			  res->flags, res->index);
 	}
 
-	for (link = 0; link < root->links; link++) {
-		for (child = root->link[link].children; child;
-		     child = child->sibling)
+	for (link = root->link_list; link; link = link->next) {
+		for (child = link->children; child; child = child->sibling)
 			resource_tree(child, debug_level, depth + 1);
 	}
 }
@@ -640,13 +644,15 @@  void show_devs_tree(struct device *dev, 
 	char depth_str[20] = "";
 	int i;
 	struct device *sibling;
+	struct bus *link;
+
 	for (i = 0; i < depth; i++)
 		depth_str[i] = ' ';
 	depth_str[i] = '\0';
 	do_printk(debug_level, "%s%s: enabled %d\n",
 		  depth_str, dev_path(dev), dev->enabled);
-	for (i = 0; i < dev->links; i++) {
-		for (sibling = dev->link[i].children; sibling;
+	for (link = dev->link_list; link; link = link->next) {
+		for (sibling = link->children; sibling;
 		     sibling = sibling->sibling)
 			show_devs_tree(sibling, debug_level, depth + 1, i);
 	}
Index: svn/src/arch/i386/boot/mpspec.c
===================================================================
--- svn.orig/src/arch/i386/boot/mpspec.c
+++ svn/src/arch/i386/boot/mpspec.c
@@ -190,7 +190,6 @@  void smp_write_intsrc_pci_bridge(struct 
 {
 	struct device *child;
 
-	int linkn;
 	int i;
 	int srcbus;
 	int slot;
@@ -198,9 +197,8 @@  void smp_write_intsrc_pci_bridge(struct 
 	struct bus *link;
 	unsigned char dstirq_x[4];
 
-	for (linkn = 0; linkn < dev->links; linkn++) {
+	for (link = dev->link_list; link; link = link->next) {
 
-		link = &dev->link[linkn];
 		child = link->children;
 		srcbus = link->secondary;
 
Index: svn/src/drivers/generic/debug/debug_dev.c
===================================================================
--- svn.orig/src/drivers/generic/debug/debug_dev.c
+++ svn/src/drivers/generic/debug/debug_dev.c
@@ -85,7 +85,7 @@  static void print_cpuid(void)
 static void print_smbus_regs(struct device *dev)
 {
 	int j;
-	printk(BIOS_DEBUG, "smbus: %s[%d]->", dev_path(dev->bus->dev), dev->bus->link);
+	printk(BIOS_DEBUG, "smbus: %s[%d]->", dev_path(dev->bus->dev), dev->bus->link_num);
 	printk(BIOS_DEBUG, "%s", dev_path(dev));
 	for(j = 0; j < 256; j++) {
 		int status;
@@ -107,22 +107,22 @@  static void print_smbus_regs(struct devi
 static void print_smbus_regs_all(struct device *dev)
 {
 	struct device *child;
-	int i;
+	struct bus *link;
 	if (dev->enabled && dev->path.type == DEVICE_PATH_I2C)
 	{
 		// Here don't need to call smbus_set_link, because we scan it from top to down
 		if( dev->bus->dev->path.type == DEVICE_PATH_I2C) { // it's under i2c MUX so set mux at first
 			if(ops_smbus_bus(get_pbus_smbus(dev->bus->dev))) {
 				if(dev->bus->dev->ops && dev->bus->dev->ops->set_link)
-					dev->bus->dev->ops->set_link(dev->bus->dev, dev->bus->link);
+					dev->bus->dev->ops->set_link(dev->bus->dev, dev->bus->link_num);
 			}
 		}
 
 		if(ops_smbus_bus(get_pbus_smbus(dev))) print_smbus_regs(dev);
 	}
 
-	for(i=0; i< dev->links; i++) {
-		for (child = dev->link[i].children; child; child = child->sibling) {
+	for(link = dev->link_list; link; link = link->next) {
+		for (child = link->children; child; child = child->sibling) {
 			print_smbus_regs_all(child);
         	}
 	}
Index: svn/src/drivers/i2c/i2cmux/i2cmux.c
===================================================================
--- svn.orig/src/drivers/i2c/i2cmux/i2cmux.c
+++ svn/src/drivers/i2c/i2cmux/i2cmux.c
@@ -34,7 +34,7 @@  static struct device_operations i2cmux_o
 
 static void enable_dev(struct device *dev)
 {
-	if(dev->links>0)
+	if(dev->link_list != NULL)
 		dev->ops = &i2cmux_operations;
 }
 
Index: svn/src/drivers/i2c/i2cmux2/i2cmux2.c
===================================================================
--- svn.orig/src/drivers/i2c/i2cmux2/i2cmux2.c
+++ svn/src/drivers/i2c/i2cmux2/i2cmux2.c
@@ -33,7 +33,7 @@  static struct device_operations i2cmux2_
 
 static void enable_dev(struct device *dev)
 {
-	if(dev->links>0)
+	if(dev->link_list != NULL)
 		dev->ops = &i2cmux2_operations;
 }
 
Index: svn/src/mainboard/emulation/qemu-x86/northbridge.c
===================================================================
--- svn.orig/src/mainboard/emulation/qemu-x86/northbridge.c
+++ svn/src/mainboard/emulation/qemu-x86/northbridge.c
@@ -60,7 +60,7 @@  extern uint64_t high_tables_base, high_t
 
 static void cpu_pci_domain_set_resources(device_t dev)
 {
-	u32 pci_tolm = find_pci_tolm(&dev->link[0]);
+	u32 pci_tolm = find_pci_tolm(dev->link_list);
 	unsigned long tomk = 0, tolmk;
 	int idx;
 
@@ -91,7 +91,7 @@  static void cpu_pci_domain_set_resources
 	high_tables_size = HIGH_TABLES_SIZE * 1024;
 #endif
 
-	assign_resources(&dev->link[0]);
+	assign_resources(dev->link_list);
 }
 
 static void cpu_pci_domain_read_resources(struct device *dev)
Index: svn/src/mainboard/kontron/986lcd-m/mptable.c
===================================================================
--- svn.orig/src/mainboard/kontron/986lcd-m/mptable.c
+++ svn/src/mainboard/kontron/986lcd-m/mptable.c
@@ -70,7 +70,7 @@  static void *smp_write_config_table(void
 	if (!riser)
 		riser = dev_find_device(0x3388, 0x0022, 0);
 	if (riser) {
-		riser_bus = riser->link[0].secondary;
+		riser_bus = riser->link_list->secondary;
 		printk(BIOS_SPEW, "Riser bus is %x\n", riser_bus);
 		max_pci_bus = riser_bus;
 	}
Index: svn/src/mainboard/tyan/s2881/mainboard.c
===================================================================
--- svn.orig/src/mainboard/tyan/s2881/mainboard.c
+++ svn/src/mainboard/tyan/s2881/mainboard.c
@@ -46,7 +46,7 @@  static void adt7463_init(device_t dev)
 	/* Find the ADT7463 device. */
 	path.type = DEVICE_PATH_I2C;
 	path.i2c.device = 0x2d;
-	adt7463 = find_dev_path(smbus_dev->link, &path);
+	adt7463 = find_dev_path(smbus_dev->link_list, &path);
 	if (!adt7463)
 		die("ADT7463 not found\n");
 	printk(BIOS_DEBUG, "ADT7463 found\n");
@@ -113,7 +113,7 @@  static unsigned int scan_root_bus(device
 {
 	struct device_path path;
 	device_t dummy;
-	unsigned link_i;
+	struct bus *last, *link;
 
 	max = root_dev_scan_bus(root, max);
 
@@ -126,20 +126,13 @@  static unsigned int scan_root_bus(device
 	 * as the last device to be initialized.
 	 */
 
-	link_i = root->links;
-	if (link_i >= MAX_LINKS) {
-		printk(BIOS_DEBUG, "Reached MAX_LINKS, not configuring ADT7463");
-		return max;
-	}
-	root->link[link_i].link = link_i;
-	root->link[link_i].dev = root;
-	root->link[link_i].children = 0;
-	root->links++;
+	for (link = root->link_list; link; link = link->next)
+		last = link;
 
 	path.type = DEVICE_PATH_PNP;
 	path.pnp.port = 0;
 	path.pnp.device = 0;
-	dummy = alloc_dev(&root->link[link_i], &path);
+	dummy = alloc_dev(last, &path);
 	dummy->ops = &dummy_operations;
 
 	return max;
Index: svn/src/northbridge/amd/amdfam10/northbridge.c
===================================================================
--- svn.orig/src/northbridge/amd/amdfam10/northbridge.c
+++ svn/src/northbridge/amd/amdfam10/northbridge.c
@@ -138,7 +138,7 @@  static void set_vga_enable_reg(u32 nodei
 
 }
 
-static u32 amdfam10_scan_chain(device_t dev, u32 nodeid, u32 link, u32 sblink,
+static u32 amdfam10_scan_chain(device_t dev, u32 nodeid, struct bus *link, u32 link_num, u32 sblink,
 				u32 max, u32 offset_unitid)
 {
 //	I want to put sb chain in bus 0 can I?
@@ -150,7 +150,7 @@  static u32 amdfam10_scan_chain(device_t 
 		u32 ht_unitid_base[4]; // here assume only 4 HT device on chain
 		u32 max_bus;
 		u32 min_bus;
-		u32 is_sublink1 = (link>3);
+		u32 is_sublink1 = (link_num>3);
 		device_t devx;
 		u32 busses;
 		u32 segn = max>>8;
@@ -163,7 +163,7 @@  static u32 amdfam10_scan_chain(device_t 
 		if(is_sublink1) {
 			u32 regpos;
 			u32 reg;
-			regpos = 0x170 + 4 * (link&3); // it is only on sublink0
+			regpos = 0x170 + 4 * (link_num&3); // it is only on sublink0
 			reg = pci_read_config32(dev, regpos);
 			if(reg & 1) return max; // already ganged no sblink1
 			devx = get_node_pci(nodeid, 4);
@@ -172,15 +172,15 @@  static u32 amdfam10_scan_chain(device_t 
 			devx = dev;
 
 
-		dev->link[link].cap = 0x80 + ((link&3) *0x20);
+		link->cap = 0x80 + ((link_num&3) *0x20);
 		do {
-			link_type = pci_read_config32(devx, dev->link[link].cap + 0x18);
+			link_type = pci_read_config32(devx, link->cap + 0x18);
 		} while(link_type & ConnectionPending);
 		if (!(link_type & LinkConnected)) {
 			return max;
 		}
 		do {
-			link_type = pci_read_config32(devx, dev->link[link].cap + 0x18);
+			link_type = pci_read_config32(devx, link->cap + 0x18);
 		} while(!(link_type & InitComplete));
 		if (!(link_type & NonCoherent)) {
 			return max;
@@ -188,7 +188,7 @@  static u32 amdfam10_scan_chain(device_t 
 		/* See if there is an available configuration space mapping
 		 * register in function 1.
 		 */
-		ht_c_index = get_ht_c_index(nodeid, link, &sysconf);
+		ht_c_index = get_ht_c_index(nodeid, link_num, &sysconf);
 
 #if CONFIG_EXT_CONF_SUPPORT == 0
 		if(ht_c_index>=4) return max;
@@ -200,8 +200,8 @@  static u32 amdfam10_scan_chain(device_t 
 		 */
 #if CONFIG_SB_HT_CHAIN_ON_BUS0 > 0
 		// first chain will on bus 0
-		if((nodeid == 0) && (sblink==link)) { // actually max is 0 here
-			 min_bus = max;
+		if((nodeid == 0) && (sblink==link_num)) { // actually max is 0 here
+			min_bus = max;
 		}
 	#if CONFIG_SB_HT_CHAIN_ON_BUS0 > 1
 		// second chain will be on 0x40, third 0x80, forth 0xc0
@@ -222,25 +222,26 @@  static u32 amdfam10_scan_chain(device_t 
 #endif
 		max_bus = 0xfc | (segn<<8);
 
-		dev->link[link].secondary = min_bus;
-		dev->link[link].subordinate = max_bus;
+		link->secondary = min_bus;
+		link->subordinate = max_bus;
+
 		/* Read the existing primary/secondary/subordinate bus
 		 * number configuration.
 		 */
-		busses = pci_read_config32(devx, dev->link[link].cap + 0x14);
+		busses = pci_read_config32(devx, link->cap + 0x14);
 
 		/* Configure the bus numbers for this bridge: the configuration
 		 * transactions will not be propagates by the bridge if it is
 		 * not correctly configured
 		 */
 		busses &= 0xffff00ff;
-		busses |= ((u32)(dev->link[link].secondary) << 8);
-		pci_write_config32(devx, dev->link[link].cap + 0x14, busses);
+		busses |= ((u32)(link->secondary) << 8);
+		pci_write_config32(devx, link->cap + 0x14, busses);
 
 
 		/* set the config map space */
 
-		set_config_map_reg(nodeid, link, ht_c_index, dev->link[link].secondary, dev->link[link].subordinate, sysconf.segbit, sysconf.nodes);
+		set_config_map_reg(nodeid, link_num, ht_c_index, link->secondary, link->subordinate, sysconf.segbit, sysconf.nodes);
 
 		/* Now we can scan all of the subordinate busses i.e. the
 		 * chain on the hypertranport link
@@ -255,18 +256,17 @@  static u32 amdfam10_scan_chain(device_t 
 		else
 			max_devfn = (0x1f<<3) | 7;
 
-		max = hypertransport_scan_chain(&dev->link[link], 0, max_devfn, max, ht_unitid_base, offset_unitid);
-
+		max = hypertransport_scan_chain(link, 0, max_devfn, max, ht_unitid_base, offset_unitid);
 
 		/* We know the number of busses behind this bridge.  Set the
 		 * subordinate bus number to it's real value
 		 */
 		if(ht_c_index>3) { // clear the extend reg
-			clear_config_map_reg(nodeid, link, ht_c_index, (max+1)>>sysconf.segbit, (dev->link[link].subordinate)>>sysconf.segbit, sysconf.nodes);
+			clear_config_map_reg(nodeid, link_num, ht_c_index, (max+1)>>sysconf.segbit, (link->subordinate)>>sysconf.segbit, sysconf.nodes);
 		}
 
-		dev->link[link].subordinate = max;
-		set_config_map_reg(nodeid, link, ht_c_index, dev->link[link].secondary, dev->link[link].subordinate, sysconf.segbit, sysconf.nodes);
+		link->subordinate = max;
+		set_config_map_reg(nodeid, link_num, ht_c_index, link->secondary, link->subordinate, sysconf.segbit, sysconf.nodes);
 		sysconf.ht_c_num++;
 
 		{
@@ -279,14 +279,14 @@  static u32 amdfam10_scan_chain(device_t 
 			sysconf.hcdn_reg[ht_c_index] = temp;
 
 		}
-	store_ht_c_conf_bus(nodeid, link, ht_c_index, dev->link[link].secondary, dev->link[link].subordinate, &sysconf);
+	store_ht_c_conf_bus(nodeid, link_num, ht_c_index, link->secondary, link->subordinate, &sysconf);
 	return max;
 }
 
-static u32 amdfam10_scan_chains(device_t dev, u32 max)
+static unsigned amdfam10_scan_chains(device_t dev, unsigned max)
 {
 	unsigned nodeid;
-	u32 link;
+	struct bus *link;
 	unsigned sblink = sysconf.sblk;
 	unsigned offset_unitid = 0;
 
@@ -298,29 +298,29 @@  static u32 amdfam10_scan_chains(device_t
 	#if ((CONFIG_HT_CHAIN_UNITID_BASE != 1) || (CONFIG_HT_CHAIN_END_UNITID_BASE != 0x20))
 		offset_unitid = 1;
 	#endif
-		max = amdfam10_scan_chain(dev, nodeid, sblink, sblink, max, offset_unitid ); // do sb ht chain at first, in case s2885 put sb chain (8131/8111) on link2, but put 8151 on link0
+		for (link = dev->link_list; link; link = link->next)
+			if (link->link_num == sblink)
+				max = amdfam10_scan_chain(dev, nodeid, link, sblink, sblink, max, offset_unitid ); // do sb ht chain at first, in case s2885 put sb chain (8131/8111) on link2, but put 8151 on link0
 	}
 #endif
 
-
 #if CONFIG_PCI_BUS_SEGN_BITS
 	max = check_segn(dev, max, sysconf.nodes, &sysconf);
 #endif
 
-
-	for(link = 0; link < dev->links; link++) {
+	for(link = dev->link_list; link; link = link->next) {
 #if CONFIG_SB_HT_CHAIN_ON_BUS0 > 0
-		if( (nodeid == 0) && (sblink == link) ) continue; //already done
+		if( (nodeid == 0) && (sblink == link->link_num) ) continue; //already done
 #endif
 		offset_unitid = 0;
 		#if ((CONFIG_HT_CHAIN_UNITID_BASE != 1) || (CONFIG_HT_CHAIN_END_UNITID_BASE != 0x20))
 			#if CONFIG_SB_HT_CHAIN_UNITID_OFFSET_ONLY == 1
-			if((nodeid == 0) && (sblink == link))
+			if((nodeid == 0) && (sblink == link->link_num))
 			#endif
 				offset_unitid = 1;
 		#endif
 
-		max = amdfam10_scan_chain(dev, nodeid, link, sblink, max, offset_unitid);
+		max = amdfam10_scan_chain(dev, nodeid, link, link->link_num, sblink, max, offset_unitid);
 	}
 	return max;
 }
@@ -485,22 +485,21 @@  static void amdfam10_link_read_bases(dev
 
 static void amdfam10_read_resources(device_t dev)
 {
-	u32 nodeid, link;
-
+	u32 nodeid;
+	struct bus *link;
 	nodeid = amdfam10_nodeid(dev);
-	for(link = 0; link < dev->links; link++) {
-		if (dev->link[link].children) {
-			amdfam10_link_read_bases(dev, nodeid, link);
+	for(link = dev->link_list; link; link = link->next) {
+		if (link->children) {
+			amdfam10_link_read_bases(dev, nodeid, link->link_num);
 		}
 	}
 }
 
-
 static void amdfam10_set_resource(device_t dev, struct resource *resource,
 				u32 nodeid)
 {
 	resource_t rbase, rend;
-	unsigned reg, link;
+	unsigned reg, link_num;
 	char buf[50];
 
 	/* Make certain the resource has actually been set */
@@ -529,20 +528,20 @@  static void amdfam10_set_resource(device
 
 	/* Get the register and link */
 	reg  = resource->index & 0xfff; // 4k
-	link = IOINDEX_LINK(resource->index);
+	link_num = IOINDEX_LINK(resource->index);
 
 	if (resource->flags & IORESOURCE_IO) {
 
-		set_io_addr_reg(dev, nodeid, link, reg, rbase>>8, rend>>8);
-		store_conf_io_addr(nodeid, link, reg, (resource->index >> 24), rbase>>8, rend>>8);
+		set_io_addr_reg(dev, nodeid, link_num, reg, rbase>>8, rend>>8);
+		store_conf_io_addr(nodeid, link_num, reg, (resource->index >> 24), rbase>>8, rend>>8);
 	}
 	else if (resource->flags & IORESOURCE_MEM) {
-		set_mmio_addr_reg(nodeid, link, reg, (resource->index >>24), rbase>>8, rend>>8, sysconf.nodes) ;// [39:8]
-		store_conf_mmio_addr(nodeid, link, reg, (resource->index >>24), rbase>>8, rend>>8);
+		set_mmio_addr_reg(nodeid, link_num, reg, (resource->index >>24), rbase>>8, rend>>8, sysconf.nodes) ;// [39:8]
+		store_conf_mmio_addr(nodeid, link_num, reg, (resource->index >>24), rbase>>8, rend>>8);
 	}
 	resource->flags |= IORESOURCE_STORED;
-	sprintf(buf, " <node %02x link %02x>",
-		nodeid, link);
+	sprintf(buf, " <node %x link %x>",
+		nodeid, link_num);
 	report_resource_stored(dev, resource, buf);
 }
 
@@ -557,18 +556,18 @@  extern device_t vga_pri;	// the primary 
 
 static void amdfam10_create_vga_resource(device_t dev, unsigned nodeid)
 {
-	unsigned link;
+	struct bus *link;
 
 	/* find out which link the VGA card is connected,
 	 * we only deal with the 'first' vga card */
-	for (link = 0; link < dev->links; link++) {
-		if (dev->link[link].bridge_ctrl & PCI_BRIDGE_CTL_VGA) {
+	for (link = dev->link_list; link; link = link->next) {
+		if (link->bridge_ctrl & PCI_BRIDGE_CTL_VGA) {
 #if CONFIG_CONSOLE_VGA_MULTI == 1
-			printk(BIOS_DEBUG, "VGA: vga_pri bus num = %d dev->link[link] bus range [%d,%d]\n", vga_pri->bus->secondary,
-				dev->link[link].secondary,dev->link[link].subordinate);
+			printk(BIOS_DEBUG, "VGA: vga_pri bus num = %d bus range [%d,%d]\n", vga_pri->bus->secondary,
+				link->secondary,link->subordinate);
 			/* We need to make sure the vga_pri is under the link */
-			if((vga_pri->bus->secondary >= dev->link[link].secondary ) &&
-				(vga_pri->bus->secondary <= dev->link[link].subordinate )
+			if((vga_pri->bus->secondary >= link->secondary ) &&
+				(vga_pri->bus->secondary <= link->subordinate )
 			)
 #endif
 			break;
@@ -576,16 +575,17 @@  static void amdfam10_create_vga_resource
 	}
 
 	/* no VGA card installed */
-	if (link == dev->links)
+	if (link == NULL)
 		return;
 
-	printk(BIOS_DEBUG, "VGA: %s (aka node %d) link %d has VGA device\n", dev_path(dev), nodeid, link);
-	set_vga_enable_reg(nodeid, link);
+	printk(BIOS_DEBUG, "VGA: %s (aka node %d) link %d has VGA device\n", dev_path(dev), nodeid, link->link_num);
+	set_vga_enable_reg(nodeid, link->link_num);
 }
 
 static void amdfam10_set_resources(device_t dev)
 {
-	u32 nodeid, link;
+	unsigned nodeid;
+	struct bus *bus;
 	struct resource *res;
 
 	/* Find the nodeid */
@@ -598,9 +598,7 @@  static void amdfam10_set_resources(devic
 		amdfam10_set_resource(dev, res, nodeid);
 	}
 
-	for(link = 0; link < dev->links; link++) {
-		struct bus *bus;
-		bus = &dev->link[link];
+	for(bus = dev->link_list; bus; bus = bus->next) {
 		if (bus->children) {
 			assign_resources(bus);
 		}
@@ -676,22 +674,22 @@  static void amdfam10_domain_read_resourc
 #if CONFIG_PCI_64BIT_PREF_MEM == 0
 	pci_domain_read_resources(dev);
 #else
-	unsigned link;
+	struct bus *link;
 	struct resource *resource;
-	for(link=0; link<dev->links; link++) {
+	for(link=dev->link_list; link; link = link->next) {
 		/* Initialize the system wide io space constraints */
-		resource = new_resource(dev, 0|(link<<2));
+		resource = new_resource(dev, 0|(link->link_num<<2));
 		resource->base	= 0x400;
 		resource->limit = 0xffffUL;
 		resource->flags = IORESOURCE_IO;
 
 		/* Initialize the system wide prefetchable memory resources constraints */
-		resource = new_resource(dev, 1|(link<<2));
+		resource = new_resource(dev, 1|(link->link_num<<2));
 		resource->limit = 0xfcffffffffULL;
 		resource->flags = IORESOURCE_MEM | IORESOURCE_PREFETCH;
 
 		/* Initialize the system wide memory resources constraints */
-		resource = new_resource(dev, 2|(link<<2));
+		resource = new_resource(dev, 2|(link->link_num<<2));
 		resource->limit = 0xfcffffffffULL;
 		resource->flags = IORESOURCE_MEM;
 	}
@@ -885,7 +883,7 @@  static void amdfam10_domain_set_resource
 	unsigned long mmio_basek;
 	u32 pci_tolm;
 	int i, idx;
-	u32 link;
+	struct bus *link;
 #if CONFIG_HW_MEM_HOLE_SIZEK != 0
 	struct hw_mem_hole_info mem_hole;
 	u32 reset_memhole = 1;
@@ -893,12 +891,12 @@  static void amdfam10_domain_set_resource
 
 #if CONFIG_PCI_64BIT_PREF_MEM == 1
 
-	for(link = 0; link < dev->links; link++) {
+	for(link = dev->link_list; link; link = link->next) {
 		/* Now reallocate the pci resources memory with the
 		 * highest addresses I can manage.
 		 */
-		mem1 = find_resource(dev, 1|(link<<2));
-		mem2 = find_resource(dev, 2|(link<<2));
+		mem1 = find_resource(dev, 1|(link->link_num<<2));
+		mem2 = find_resource(dev, 2|(link->link_num<<2));
 
 		printk(BIOS_DEBUG, "base1: 0x%08Lx limit1: 0x%08Lx size: 0x%08Lx align: %d\n",
 			mem1->base, mem1->limit, mem1->size, mem1->align);
@@ -943,8 +941,8 @@  static void amdfam10_domain_set_resource
 #endif
 
 	pci_tolm = 0xffffffffUL;
-	for(link = 0; link<dev->links; link++) {
-		pci_tolm = find_pci_tolm(&dev->link[link], pci_tolm);
+	for(link = dev->link_list; link; link = link->next) {
+		pci_tolm = find_pci_tolm(link, pci_tolm);
 	}
 
 	// FIXME handle interleaved nodes. If you fix this here, please fix
@@ -1088,11 +1086,9 @@  static void amdfam10_domain_set_resource
 #endif
 	}
 
-	for(link = 0; link < dev->links; link++) {
-		struct bus *bus;
-		bus = &dev->link[link];
-		if (bus->children) {
-			assign_resources(bus);
+	for(link = dev->link_list; link; link = link->next) {
+		if (link->children) {
+			assign_resources(link);
 		}
 	}
 }
@@ -1101,6 +1097,7 @@  static u32 amdfam10_domain_scan_bus(devi
 {
 	u32 reg;
 	int i;
+	struct bus *link;
 	/* Unmap all of the HT chains */
 	for(reg = 0xe0; reg <= 0xec; reg += 4) {
 		f1_write_config32(reg, 0);
@@ -1118,8 +1115,8 @@  static u32 amdfam10_domain_scan_bus(devi
 #endif
 
 
-	for(i = 0; i < dev->links; i++) {
-		max = pci_scan_bus(&dev->link[i], PCI_DEVFN(CONFIG_CDB, 0), 0xff, max);
+	for(link = dev->link_list; link; link = link->next) {
+		max = pci_scan_bus(link, PCI_DEVFN(CONFIG_CDB, 0), 0xff, max);
 	}
 
 	/* Tune the hypertransport transaction for best performance.
@@ -1133,12 +1130,12 @@  static u32 amdfam10_domain_scan_bus(devi
 			u32 httc;
 			httc = pci_read_config32(f0_dev, HT_TRANSACTION_CONTROL);
 			httc &= ~HTTC_RSP_PASS_PW;
-			if (!dev->link[0].disable_relaxed_ordering) {
+			if (!dev->link_list->disable_relaxed_ordering) {
 				httc |= HTTC_RSP_PASS_PW;
 			}
 			printk(BIOS_SPEW, "%s passpw: %s\n",
 				dev_path(dev),
-				(!dev->link[0].disable_relaxed_ordering)?
+				(!dev->link_list->disable_relaxed_ordering)?
 				"enabled":"disabled");
 			pci_write_config32(f0_dev, HT_TRANSACTION_CONTROL, httc);
 		}
@@ -1201,6 +1198,42 @@  static void sysconf_init(device_t dev) /
 #endif
 }
 
+static void add_more_links(device_t dev, unsigned total_links)
+{
+	struct bus *link, *last = NULL;
+	int link_num;
+
+	for (link = dev->link_list; link; link = link->next)
+		last = link;
+
+	if (last) {
+		int links = total_links - last->link_num;
+		link_num = last->link_num;
+		if (links > 0) {
+			link = malloc(links*sizeof(*link));
+			if (!link)
+				die("Couldn't allocate more links!\n");
+			memset(link, 0, links*sizeof(*link));
+			last->next = link;
+		}
+	}
+	else {
+		link_num = -1;
+		link = malloc(total_links*sizeof(*link));
+		memset(link, 0, total_links*sizeof(*link));
+		dev->link_list = link;
+	}
+
+	for (link_num = link_num + 1; link_num < total_links; link_num++) {
+		link->link_num = link_num;
+		link->dev = dev;
+		link->next = link + 1;
+		last = link;
+		link = link->next;
+	}
+	last->next = NULL;
+}
+
 static u32 cpu_bus_scan(device_t dev, u32 max)
 {
 	struct bus *cpu_bus;
@@ -1254,7 +1287,7 @@  static u32 cpu_bus_scan(device_t dev, u3
 			printk(BIOS_DEBUG, "%s found\n", dev_path(dev_mc));
 			pci_domain = dev_mc->bus->dev;
 			if(pci_domain && (pci_domain->path.type == DEVICE_PATH_PCI_DOMAIN)) {
-				if((pci_domain->links==1) && (pci_domain->link[0].children == dev_mc)) {
+				if((pci_domain->link_list) && (pci_domain->link_list->children == dev_mc)) {
 					printk(BIOS_DEBUG, "%s move to ",dev_path(dev_mc));
 					dev_mc->bus->secondary = CONFIG_CBB; // move to 0xff
 					printk(BIOS_DEBUG, "%s\n",dev_path(dev_mc));
@@ -1283,18 +1316,19 @@  static u32 cpu_bus_scan(device_t dev, u3
 
 #if CONFIG_CBB && (NODE_NUMS > 32)
 	if(nodes>32) { // need to put node 32 to node 63 to bus 0xfe
-		if(pci_domain->links==1) {
-			pci_domain->links++; // from 1 to 2
-			pci_domain->link[1].link = 1;
-			pci_domain->link[1].dev = pci_domain;
-			pci_domain->link[1].children = 0;
-			printk(BIOS_DEBUG, "%s links increase to %d\n", dev_path(pci_domain), pci_domain->links);
+		if(pci_domain->link_list && !pci_domain->link_list->next) {
+			struct bus *new_link = new_link(pci_domain);
+			pci_domain->link_list->next = new_link;
+			new_link->link_num = 1;
+			new_link->dev = pci_domain;
+			new_link->children = 0;
+			printk(BIOS_DEBUG, "%s links now 2\n", dev_path(pci_domain));
 		}
-		pci_domain->link[1].secondary = CONFIG_CBB - 1;
+		pci_domain->link_list->next->secondary = CONFIG_CBB - 1;
 	}
 #endif
 	/* Find which cpus are present */
-	cpu_bus = &dev->link[0];
+	cpu_bus = dev->link_list;
 	for(i = 0; i < nodes; i++) {
 		device_t cdb_dev, cpu;
 		struct device_path cpu_path;
@@ -1308,7 +1342,7 @@  static u32 cpu_bus_scan(device_t dev, u3
 		if(i>=32) {
 			busn--;
 			devn-=32;
-			pbus = &(pci_domain->link[1]);
+			pbus = pci_domain->link_list->next);
 		}
 #endif
 
@@ -1329,21 +1363,13 @@  static u32 cpu_bus_scan(device_t dev, u3
 			/* Ok, We need to set the links for that device.
 			 * otherwise the device under it will not be scanned
 			 */
-			int link;
 			int linknum;
 #if CONFIG_HT3_SUPPORT==1
 			linknum = 8;
 #else
 			linknum = 4;
 #endif
-			if (cdb_dev->links < linknum) {
-				for(link=cdb_dev->links; link<linknum; link++) {
-					 cdb_dev->link[link].link = link;
-					 cdb_dev->link[link].dev = cdb_dev;
-				}
-				cdb_dev->links = linknum;
-				printk(BIOS_DEBUG, "%s links increase to %d\n", dev_path(cdb_dev), cdb_dev->links);
-			}
+			add_more_links(cdb_dev, linknum);
 		}
 
 		cores_found = 0; // one core
@@ -1414,7 +1440,7 @@  static u32 cpu_bus_scan(device_t dev, u3
 
 static void cpu_bus_init(device_t dev)
 {
-	initialize_cpus(&dev->link[0]);
+	initialize_cpus(dev->link_list);
 }
 
 static void cpu_bus_noop(device_t dev)
Index: svn/src/northbridge/amd/amdk8/northbridge.c
===================================================================
--- svn.orig/src/northbridge/amd/amdk8/northbridge.c
+++ svn/src/northbridge/amd/amdk8/northbridge.c
@@ -81,7 +81,7 @@  static u32 amdk8_nodeid(device_t dev)
 	return (dev->path.pci.devfn >> 3) - 0x18;
 }
 
-static u32 amdk8_scan_chain(device_t dev, u32 nodeid, u32 link_num, u32 sblink,
+static u32 amdk8_scan_chain(device_t dev, u32 nodeid, struct bus *link, u32 link_num, u32 sblink,
 				u32 max, u32 offset_unitid)
 {
 
@@ -94,15 +94,15 @@  static u32 amdk8_scan_chain(device_t dev
 		u32 min_bus;
 		u32 max_devfn;
 
-		dev->link[link].cap = 0x80 + (link *0x20);
+		link->cap = 0x80 + (link_num *0x20);
 		do {
-			link_type = pci_read_config32(dev, dev->link[link].cap + 0x18);
+			link_type = pci_read_config32(dev, link->cap + 0x18);
 		} while(link_type & ConnectionPending);
 		if (!(link_type & LinkConnected)) {
 			return max;
 		}
 		do {
-			link_type = pci_read_config32(dev, dev->link[link].cap + 0x18);
+			link_type = pci_read_config32(dev, link->cap + 0x18);
 		} while(!(link_type & InitComplete));
 		if (!(link_type & NonCoherent)) {
 			return max;
@@ -120,7 +120,7 @@  static u32 amdk8_scan_chain(device_t dev
 			}
 			if (((config & 3) == 3) &&
 				(((config >> 4) & 7) == nodeid) &&
-				(((config >> 8) & 3) == link)) {
+				(((config >> 8) & 3) == link_num)) {
 				break;
 			}
 		}
@@ -140,7 +140,7 @@  static u32 amdk8_scan_chain(device_t dev
 		 */
 #if CONFIG_SB_HT_CHAIN_ON_BUS0 > 0
 		// first chain will on bus 0
-		if((nodeid == 0) && (sblink==link)) { // actually max is 0 here
+		if((nodeid == 0) && (sblink==link_num)) { // actually max is 0 here
 			min_bus = max;
 		}
 	#if CONFIG_SB_HT_CHAIN_ON_BUS0 > 1
@@ -160,13 +160,13 @@  static u32 amdk8_scan_chain(device_t dev
 #endif
 		max_bus = 0xff;
 
-		dev->link[link].secondary = min_bus;
-		dev->link[link].subordinate = max_bus;
+		link->secondary = min_bus;
+		link->subordinate = max_bus;
 
 		/* Read the existing primary/secondary/subordinate bus
 		 * number configuration.
 		 */
-		busses = pci_read_config32(dev, dev->link[link].cap + 0x14);
+		busses = pci_read_config32(dev, link->cap + 0x14);
 		config_busses = f1_read_config32(config_reg);
 
 		/* Configure the bus numbers for this bridge: the configuration
@@ -175,17 +175,17 @@  static u32 amdk8_scan_chain(device_t dev
 		 */
 		busses &= 0xff000000;
 		busses |= (((unsigned int)(dev->bus->secondary) << 0) |
-			((unsigned int)(dev->link[link].secondary) << 8) |
-			((unsigned int)(dev->link[link].subordinate) << 16));
-		pci_write_config32(dev, dev->link[link].cap + 0x14, busses);
+			((unsigned int)(link->secondary) << 8) |
+			((unsigned int)(link->subordinate) << 16));
+		pci_write_config32(dev, link->cap + 0x14, busses);
 
 		config_busses &= 0x000fc88;
 		config_busses |=
 			(3 << 0) |  /* rw enable, no device compare */
 			(( nodeid & 7) << 4) |
-			(( link & 3 ) << 8) |
-			((dev->link[link].secondary) << 16) |
-			((dev->link[link].subordinate) << 24);
+			(( link_num & 3 ) << 8) |
+			((link->secondary) << 16) |
+			((link->subordinate) << 24);
 		f1_write_config32(config_reg, config_busses);
 
 		/* Now we can scan all of the subordinate busses i.e. the
@@ -200,18 +200,18 @@  static u32 amdk8_scan_chain(device_t dev
 		else
 			max_devfn = (0x1f<<3) | 7;
 
-		max = hypertransport_scan_chain(&dev->link[link], 0, max_devfn, max, ht_unitid_base, offset_unitid);
+		max = hypertransport_scan_chain(link, 0, max_devfn, max, ht_unitid_base, offset_unitid);
 
 		/* We know the number of busses behind this bridge.  Set the
 		 * subordinate bus number to it's real value
 		 */
-		dev->link[link].subordinate = max;
+		link->subordinate = max;
 		busses = (busses & 0xff00ffff) |
-			((unsigned int) (dev->link[link].subordinate) << 16);
-		pci_write_config32(dev, dev->link[link].cap + 0x14, busses);
+			((unsigned int) (link->subordinate) << 16);
+		pci_write_config32(dev, link->cap + 0x14, busses);
 
 		config_busses = (config_busses & 0x00ffffff) |
-			(dev->link[link].subordinate << 24);
+			(link->subordinate << 24);
 		f1_write_config32(config_reg, config_busses);
 
 		{
@@ -233,7 +233,7 @@  static u32 amdk8_scan_chain(device_t dev
 static unsigned amdk8_scan_chains(device_t dev, unsigned max)
 {
 	unsigned nodeid;
-	unsigned link;
+	struct bus *link;
 	unsigned sblink = 0;
 	unsigned offset_unitid = 0;
 
@@ -245,23 +245,25 @@  static unsigned amdk8_scan_chains(device
 	#if ((CONFIG_HT_CHAIN_UNITID_BASE != 1) || (CONFIG_HT_CHAIN_END_UNITID_BASE != 0x20))
 		offset_unitid = 1;
 	#endif
-		max = amdk8_scan_chain(dev, nodeid, sblink, sblink, max, offset_unitid ); // do sb ht chain at first, in case s2885 put sb chain (8131/8111) on link2, but put 8151 on link0
+		for (link = dev->link_list; link; link = link->next)
+			if (link->link_num == sblink)
+				max = amdk8_scan_chain(dev, nodeid, link, sblink, sblink, max, offset_unitid ); // do sb ht chain at first, in case s2885 put sb chain (8131/8111) on link2, but put 8151 on link0
 #endif
 	}
 
-	for(link = 0; link < dev->links; link++) {
+	for(link = dev->link_list; link; link = link->next) {
 #if CONFIG_SB_HT_CHAIN_ON_BUS0 > 0
-		if( (nodeid == 0) && (sblink == link) ) continue; //already done
+		if( (nodeid == 0) && (sblink == link->link_num) ) continue; //already done
 #endif
 		offset_unitid = 0;
 		#if ((CONFIG_HT_CHAIN_UNITID_BASE != 1) || (CONFIG_HT_CHAIN_END_UNITID_BASE != 0x20))
 			#if CONFIG_SB_HT_CHAIN_UNITID_OFFSET_ONLY == 1
-			if((nodeid == 0) && (sblink == link))
+			if((nodeid == 0) && (sblink == link->link_num))
 			#endif
 				offset_unitid = 1;
 		#endif
 
-		max = amdk8_scan_chain(dev, nodeid, link, sblink, max, offset_unitid);
+		max = amdk8_scan_chain(dev, nodeid, link, link->link_num, sblink, max, offset_unitid);
 	}
 	return max;
 }
@@ -376,21 +378,22 @@  static void amdk8_create_vga_resource(de
 
 static void amdk8_read_resources(device_t dev)
 {
-	unsigned nodeid, link;
+	unsigned nodeid;
+	struct bus *link;
 	nodeid = amdk8_nodeid(dev);
-	for(link = 0; link < dev->links; link++) {
-		if (dev->link[link].children) {
-			amdk8_link_read_bases(dev, nodeid, link);
+	for(link = dev->link_list; link; link = link->next) {
+		if (link->children) {
+			amdk8_link_read_bases(dev, nodeid, link->link_num);
 		}
 	}
-
 	amdk8_create_vga_resource(dev, nodeid);
 }
 
 static void amdk8_set_resource(device_t dev, struct resource *resource, unsigned nodeid)
 {
+	struct bus *link;
 	resource_t rbase, rend;
-	unsigned reg, link;
+	unsigned reg, link_num;
 	char buf[50];
 
 	/* Make certain the resource has actually been set */
@@ -427,7 +430,17 @@  static void amdk8_set_resource(device_t 
 
 	/* Get the register and link */
 	reg  = resource->index & 0xfc;
-	link = IOINDEX_LINK(resource->index);
+	link_num = IOINDEX_LINK(resource->index);
+
+	for (link = dev->link_list; link; link = link->next)
+		if (link->link_num == link_num)
+			break;
+
+	if (link == NULL) {
+		printk(BIOS_ERR, "%s: can't find link %x for %lx\n", __func__,
+			   link_num, resource->index);
+		return;
+	}
 
 	if (resource->flags & IORESOURCE_IO) {
 		u32 base, limit;
@@ -438,15 +451,15 @@  static void amdk8_set_resource(device_t 
 		base  |= 3;
 		limit &= 0xfe000fc8;
 		limit |= rend & 0x01fff000;
-		limit |= (link & 3) << 4;
+		limit |= (link_num & 3) << 4;
 		limit |= (nodeid & 7);
 
-		if (dev->link[link].bridge_ctrl & PCI_BRIDGE_CTL_VGA) {
+		if (link->bridge_ctrl & PCI_BRIDGE_CTL_VGA) {
 			printk(BIOS_SPEW, "%s, enabling legacy VGA IO forwarding for %s link 0x%x\n",
-				    __func__, dev_path(dev), link);
+				    __func__, dev_path(dev), link_num);
 			base |= PCI_IO_BASE_VGA_EN;
 		}
-		if (dev->link[link].bridge_ctrl & PCI_BRIDGE_CTL_NO_ISA) {
+		if (link->bridge_ctrl & PCI_BRIDGE_CTL_NO_ISA) {
 			base |= PCI_IO_BASE_NO_ISA;
 		}
 
@@ -462,14 +475,14 @@  static void amdk8_set_resource(device_t 
 		base  |= 3;
 		limit &= 0x00000048;
 		limit |= (rend >> 8) & 0xffffff00;
-		limit |= (link & 3) << 4;
+		limit |= (link_num & 3) << 4;
 		limit |= (nodeid & 7);
 		f1_write_config32(reg + 0x4, limit);
 		f1_write_config32(reg, base);
 	}
 	resource->flags |= IORESOURCE_STORED;
 	sprintf(buf, " <node %x link %x>",
-		nodeid, link);
+		nodeid, link_num);
 	report_resource_stored(dev, resource, buf);
 }
 
@@ -480,18 +493,18 @@  extern device_t vga_pri;	// the primary 
 static void amdk8_create_vga_resource(device_t dev, unsigned nodeid)
 {
 	struct resource *resource;
-	unsigned link;
+	struct bus *link;
 
 	/* find out which link the VGA card is connected,
 	 * we only deal with the 'first' vga card */
-	for (link = 0; link < dev->links; link++) {
-		if (dev->link[link].bridge_ctrl & PCI_BRIDGE_CTL_VGA) {
+	for (link = dev->link_list; link; link = link->next) {
+		if (link->bridge_ctrl & PCI_BRIDGE_CTL_VGA) {
 #if CONFIG_CONSOLE_VGA_MULTI == 1
-			printk(BIOS_DEBUG, "VGA: vga_pri bus num = %d dev->link[link] bus range [%d,%d]\n", vga_pri->bus->secondary,
-				dev->link[link].secondary,dev->link[link].subordinate);
+			printk(BIOS_DEBUG, "VGA: vga_pri bus num = %d link bus range [%d,%d]\n", vga_pri->bus->secondary,
+				link->secondary,link->subordinate);
 			/* We need to make sure the vga_pri is under the link */
-			if((vga_pri->bus->secondary >= dev->link[link].secondary ) &&
-				(vga_pri->bus->secondary <= dev->link[link].subordinate )
+			if((vga_pri->bus->secondary >= link->secondary ) &&
+				(vga_pri->bus->secondary <= link->subordinate )
 			)
 #endif
 			break;
@@ -499,13 +512,13 @@  static void amdk8_create_vga_resource(de
 	}
 
 	/* no VGA card installed */
-	if (link == dev->links)
+	if (link == NULL)
 		return;
 
-	printk(BIOS_DEBUG, "VGA: %s (aka node %d) link %d has VGA device\n", dev_path(dev), nodeid, link);
+	printk(BIOS_DEBUG, "VGA: %s (aka node %d) link %d has VGA device\n", dev_path(dev), nodeid, link->link_num);
 
 	/* allocate a temp resource for the legacy VGA buffer */
-	resource = new_resource(dev, IOINDEX(4, link));
+	resource = new_resource(dev, IOINDEX(4, link->link_num));
 	if(!resource){
 		printk(BIOS_DEBUG, "VGA: %s out of resources.\n", dev_path(dev));
 		return;
@@ -519,7 +532,8 @@  static void amdk8_create_vga_resource(de
 
 static void amdk8_set_resources(device_t dev)
 {
-	unsigned nodeid, link;
+	unsigned nodeid;
+	struct bus *bus;
 	struct resource *res;
 
 	/* Find the nodeid */
@@ -554,9 +568,7 @@  static void amdk8_set_resources(device_t
 
 	compact_resources(dev);
 
-	for(link = 0; link < dev->links; link++) {
-		struct bus *bus;
-		bus = &dev->link[link];
+	for(bus = dev->link_list; bus; bus = bus->next) {
 		if (bus->children) {
 			assign_resources(bus);
 		}
@@ -910,7 +922,7 @@  static void amdk8_domain_set_resources(d
 	}
 #endif
 
-	pci_tolm = find_pci_tolm(&dev->link[0]);
+	pci_tolm = find_pci_tolm(dev->link_list);
 
 	// FIXME handle interleaved nodes. If you fix this here, please fix
 	// amdfam10, too.
@@ -1067,7 +1079,7 @@  static void amdk8_domain_set_resources(d
 		}
 #endif
 	}
-	assign_resources(&dev->link[0]);
+	assign_resources(dev->link_list);
 
 }
 
@@ -1079,7 +1091,7 @@  static u32 amdk8_domain_scan_bus(device_
 	for(reg = 0xe0; reg <= 0xec; reg += 4) {
 		f1_write_config32(reg, 0);
 	}
-	max = pci_scan_bus(&dev->link[0], PCI_DEVFN(0x18, 0), 0xff, max);
+	max = pci_scan_bus(dev->link_list, PCI_DEVFN(0x18, 0), 0xff, max);
 
 	/* Tune the hypertransport transaction for best performance.
 	 * Including enabling relaxed ordering if it is safe.
@@ -1092,12 +1104,12 @@  static u32 amdk8_domain_scan_bus(device_
 			u32 httc;
 			httc = pci_read_config32(f0_dev, HT_TRANSACTION_CONTROL);
 			httc &= ~HTTC_RSP_PASS_PW;
-			if (!dev->link[0].disable_relaxed_ordering) {
+			if (!dev->link_list->disable_relaxed_ordering) {
 				httc |= HTTC_RSP_PASS_PW;
 			}
 			printk(BIOS_SPEW, "%s passpw: %s\n",
 				dev_path(dev),
-				(!dev->link[0].disable_relaxed_ordering)?
+				(!dev->link_list->disable_relaxed_ordering)?
 				"enabled":"disabled");
 			pci_write_config32(f0_dev, HT_TRANSACTION_CONTROL, httc);
 		}
@@ -1114,6 +1126,42 @@  static struct device_operations pci_doma
 	.ops_pci_bus	  = &pci_cf8_conf1,
 };
 
+static void add_more_links(device_t dev, unsigned total_links)
+{
+	struct bus *link, *last = NULL;
+	int link_num;
+
+	for (link = dev->link_list; link; link = link->next)
+		last = link;
+
+	if (last) {
+		int links = total_links - last->link_num;
+		link_num = last->link_num;
+		if (links > 0) {
+			link = malloc(links*sizeof(*link));
+			if (!link)
+				die("Couldn't allocate more links!\n");
+			memset(link, 0, links*sizeof(*link));
+			last->next = link;
+		}
+	}
+	else {
+		link_num = -1;
+		link = malloc(total_links*sizeof(*link));
+		memset(link, 0, total_links*sizeof(*link));
+		dev->link_list = link;
+	}
+
+	for (link_num = link_num + 1; link_num < total_links; link_num++) {
+		link->link_num = link_num;
+		link->dev = dev;
+		link->next = link + 1;
+		last = link;
+		link = link->next;
+	}
+	last->next = NULL;
+}
+
 static u32 cpu_bus_scan(device_t dev, u32 max)
 {
 	struct bus *cpu_bus;
@@ -1166,7 +1214,7 @@  static u32 cpu_bus_scan(device_t dev, u3
 	}
 
 	/* Find which cpus are present */
-	cpu_bus = &dev->link[0];
+	cpu_bus = dev->link_list;
 	for(i = 0; i < sysconf.nodes; i++) {
 		device_t cpu_dev, cpu;
 		struct device_path cpu_path;
@@ -1188,11 +1236,7 @@  static u32 cpu_bus_scan(device_t dev, u3
 			 */
 			dev_f0 = dev_find_slot(0, PCI_DEVFN(0x18+i,0));
 			if(dev_f0) {
-				dev_f0->links = 3;
-				for(local_j=0;local_j<3;local_j++) {
-					dev_f0->link[local_j].link = local_j;
-					dev_f0->link[local_j].dev = dev_f0;
-				}
+				add_more_links(dev_f0, 3);
 			}
 		}
 
@@ -1291,7 +1335,7 @@  static u32 cpu_bus_scan(device_t dev, u3
 
 static void cpu_bus_init(device_t dev)
 {
-	initialize_cpus(&dev->link[0]);
+	initialize_cpus(dev->link_list);
 }
 
 static void cpu_bus_noop(device_t dev)
Index: svn/src/northbridge/amd/gx1/northbridge.c
===================================================================
--- svn.orig/src/northbridge/amd/gx1/northbridge.c
+++ svn/src/northbridge/amd/gx1/northbridge.c
@@ -115,8 +115,8 @@  static void pci_domain_set_resources(dev
 	device_t mc_dev;
         uint32_t pci_tolm;
 
-        pci_tolm = find_pci_tolm(&dev->link[0]);
-	mc_dev = dev->link[0].children;
+        pci_tolm = find_pci_tolm(dev->link_list);
+	mc_dev = dev->link_list->children;
 	if (mc_dev) {
 		unsigned int tomk, tolmk;
 		unsigned int ramreg = 0;
@@ -163,7 +163,7 @@  static void pci_domain_set_resources(dev
 		idx = 10;
 		ram_resource(dev, idx++, 0, tolmk);
 	}
-	assign_resources(&dev->link[0]);
+	assign_resources(dev->link_list);
 }
 
 static struct device_operations pci_domain_ops = {
@@ -177,7 +177,7 @@  static struct device_operations pci_doma
 static void cpu_bus_init(device_t dev)
 {
 	printk(BIOS_SPEW, "%s:%s()\n", NORTHBRIDGE_FILE, __func__);
-	initialize_cpus(&dev->link[0]);
+	initialize_cpus(dev->link_list);
 }
 
 static void cpu_bus_noop(device_t dev)
Index: svn/src/northbridge/amd/gx2/northbridge.c
===================================================================
--- svn.orig/src/northbridge/amd/gx2/northbridge.c
+++ svn/src/northbridge/amd/gx2/northbridge.c
@@ -303,11 +303,9 @@  static void set_resources(struct device 
                 pci_set_resource(dev, resource);
         }
 #endif
-        unsigned link;
+	struct bus *bus;
 
-        for(link = 0; link < dev->links; link++) {
-                struct bus *bus;
-                bus = &dev->link[link];
+	for(bus = dev->link_list; bus; bus = bus->next) {
                 if (bus->children) {
                         assign_resources(bus);
                 }
@@ -402,8 +400,8 @@  static void pci_domain_set_resources(dev
 	device_t mc_dev;
         u32 pci_tolm;
 
-        pci_tolm = find_pci_tolm(&dev->link[0]);
-	mc_dev = dev->link[0].children;
+        pci_tolm = find_pci_tolm(dev->link_list);
+	mc_dev = dev->link_list->children;
 	if (mc_dev) {
 		unsigned int tomk, tolmk;
 		unsigned int ramreg = 0;
@@ -444,7 +442,7 @@  static void pci_domain_set_resources(dev
 		ram_resource(dev, idx++, 0, tolmk);
 	}
 #endif
-	assign_resources(&dev->link[0]);
+	assign_resources(dev->link_list);
 }
 
 static struct device_operations pci_domain_ops = {
@@ -457,7 +455,7 @@  static struct device_operations pci_doma
 
 static void cpu_bus_init(device_t dev)
 {
-        initialize_cpus(&dev->link[0]);
+        initialize_cpus(dev->link_list);
 }
 
 static void cpu_bus_noop(device_t dev)
Index: svn/src/northbridge/amd/lx/northbridge.c
===================================================================
--- svn.orig/src/northbridge/amd/lx/northbridge.c
+++ svn/src/northbridge/amd/lx/northbridge.c
@@ -318,7 +318,6 @@  static void northbridge_init(device_t de
 
 static void northbridge_set_resources(struct device *dev)
 {
-	unsigned link;
 	uint8_t line;
 
 #if 0
@@ -331,9 +330,8 @@  static void northbridge_set_resources(st
 	}
 #endif
 
-	for (link = 0; link < dev->links; link++) {
-		struct bus *bus;
-		bus = &dev->link[link];
+	struct bus *bus;
+	for (bus = dev->link_list; bus; bus = bus->next) {
 		if (bus->children) {
 			printk(BIOS_DEBUG, "my_dev_set_resources: assign_resources %d\n",
 			     bus->secondary);
@@ -402,7 +400,7 @@  static void pci_domain_set_resources(dev
 
 	printk(BIOS_SPEW, ">> Entering northbridge.c: %s\n", __func__);
 
-	mc_dev = dev->link[0].children;
+	mc_dev = dev->link_list->children;
 	if (mc_dev) {
 		tomk = get_systop() / 1024;
 		/* Report the memory regions
@@ -418,7 +416,7 @@  static void pci_domain_set_resources(dev
 #endif
 	}
 
-	assign_resources(&dev->link[0]);
+	assign_resources(dev->link_list);
 }
 
 static void pci_domain_enable(device_t dev)
@@ -452,7 +450,7 @@  static void cpu_bus_init(device_t dev)
 {
 	printk(BIOS_SPEW, ">> Entering northbridge.c: %s\n", __func__);
 
-	initialize_cpus(&dev->link[0]);
+	initialize_cpus(dev->link_list);
 }
 
 static void cpu_bus_noop(device_t dev)
Index: svn/src/northbridge/intel/e7501/northbridge.c
===================================================================
--- svn.orig/src/northbridge/intel/e7501/northbridge.c
+++ svn/src/northbridge/intel/e7501/northbridge.c
@@ -58,8 +58,8 @@  static void pci_domain_set_resources(dev
 	device_t mc_dev;
         uint32_t pci_tolm;
 
-        pci_tolm = find_pci_tolm(&dev->link[0]);
-	mc_dev = dev->link[0].children;
+        pci_tolm = find_pci_tolm(dev->link_list);
+	mc_dev = dev->link_list->children;
 	if (mc_dev) {
 		/* Figure out which areas are/should be occupied by RAM.
 		 * This is all computed in kilobytes and converted to/from
@@ -135,7 +135,7 @@  static void pci_domain_set_resources(dev
 		high_tables_size = HIGH_TABLES_SIZE * 1024;
 #endif
 	}
-	assign_resources(&dev->link[0]);
+	assign_resources(dev->link_list);
 }
 
 static struct device_operations pci_domain_ops = {
@@ -149,7 +149,7 @@  static struct device_operations pci_doma
 
 static void cpu_bus_init(device_t dev)
 {
-        initialize_cpus(&dev->link[0]);
+        initialize_cpus(dev->link_list);
 }
 
 static void cpu_bus_noop(device_t dev)
Index: svn/src/northbridge/intel/e7520/northbridge.c
===================================================================
--- svn.orig/src/northbridge/intel/e7520/northbridge.c
+++ svn/src/northbridge/intel/e7520/northbridge.c
@@ -62,7 +62,7 @@  static void pci_domain_set_resources(dev
 	device_t mc_dev;
 	uint32_t pci_tolm;
 
-        pci_tolm = find_pci_tolm(&dev->link[0]);
+        pci_tolm = find_pci_tolm(dev->link_list);
 
 #if 1
 	printk(BIOS_DEBUG, "PCI mem marker = %x\n", pci_tolm);
@@ -72,7 +72,7 @@  static void pci_domain_set_resources(dev
 		pci_tolm = 0xe0000000;
 	/* Ensure pci_tolm is 128M aligned */
 	pci_tolm &= 0xf8000000;
-	mc_dev = dev->link[0].children;
+	mc_dev = dev->link_list->children;
 	if (mc_dev) {
 		/* Figure out which areas are/should be occupied by RAM.
 		 * This is all computed in kilobytes and converted to/from
@@ -151,7 +151,7 @@  static void pci_domain_set_resources(dev
 		high_tables_size = HIGH_TABLES_SIZE * 1024;
 #endif
 	}
-	assign_resources(&dev->link[0]);
+	assign_resources(dev->link_list);
 }
 
 static u32 e7520_domain_scan_bus(device_t dev, u32 max)
@@ -219,7 +219,7 @@  static const struct pci_driver mc_driver
 
 static void cpu_bus_init(device_t dev)
 {
-        initialize_cpus(&dev->link[0]);
+        initialize_cpus(dev->link_list);
 }
 
 static void cpu_bus_noop(device_t dev)
Index: svn/src/northbridge/intel/e7525/northbridge.c
===================================================================
--- svn.orig/src/northbridge/intel/e7525/northbridge.c
+++ svn/src/northbridge/intel/e7525/northbridge.c
@@ -62,7 +62,7 @@  static void pci_domain_set_resources(dev
 	device_t mc_dev;
 	uint32_t pci_tolm;
 
-        pci_tolm = find_pci_tolm(&dev->link[0]);
+        pci_tolm = find_pci_tolm(dev->link_list);
 
 #if 1
 	printk(BIOS_DEBUG, "PCI mem marker = %x\n", pci_tolm);
@@ -72,7 +72,7 @@  static void pci_domain_set_resources(dev
 		pci_tolm = 0xe0000000;
 	/* Ensure pci_tolm is 128M aligned */
 	pci_tolm &= 0xf8000000;
-	mc_dev = dev->link[0].children;
+	mc_dev = dev->link_list->children;
 	if (mc_dev) {
 		/* Figure out which areas are/should be occupied by RAM.
 		 * This is all computed in kilobytes and converted to/from
@@ -151,7 +151,7 @@  static void pci_domain_set_resources(dev
 		high_tables_size = HIGH_TABLES_SIZE * 1024;
 #endif
 	}
-	assign_resources(&dev->link[0]);
+	assign_resources(dev->link_list);
 }
 
 static u32 e7525_domain_scan_bus(device_t dev, u32 max)
@@ -219,7 +219,7 @@  static const struct pci_driver mc_driver
 
 static void cpu_bus_init(device_t dev)
 {
-        initialize_cpus(&dev->link[0]);
+        initialize_cpus(dev->link_list);
 }
 
 static void cpu_bus_noop(device_t dev)
Index: svn/src/northbridge/intel/i3100/northbridge.c
===================================================================
--- svn.orig/src/northbridge/intel/i3100/northbridge.c
+++ svn/src/northbridge/intel/i3100/northbridge.c
@@ -83,7 +83,7 @@  static void pci_domain_set_resources(dev
 	device_t mc_dev;
 	u32 pci_tolm;
 
-        pci_tolm = find_pci_tolm(&dev->link[0]);
+        pci_tolm = find_pci_tolm(dev->link_list);
 
 #if 1
 	printk(BIOS_DEBUG, "PCI mem marker = %x\n", pci_tolm);
@@ -93,7 +93,7 @@  static void pci_domain_set_resources(dev
 		pci_tolm = 0xe0000000;
 	/* Ensure pci_tolm is 128M aligned */
 	pci_tolm &= 0xf8000000;
-	mc_dev = dev->link[0].children;
+	mc_dev = dev->link_list->children;
 	if (mc_dev) {
 		/* Figure out which areas are/should be occupied by RAM.
 		 * This is all computed in kilobytes and converted to/from
@@ -172,7 +172,7 @@  static void pci_domain_set_resources(dev
 		high_tables_size = HIGH_TABLES_SIZE * 1024;
 #endif
 	}
-	assign_resources(&dev->link[0]);
+	assign_resources(dev->link_list);
 }
 
 static u32 i3100_domain_scan_bus(device_t dev, u32 max)
@@ -240,7 +240,7 @@  static const struct pci_driver mc_driver
 
 static void cpu_bus_init(device_t dev)
 {
-        initialize_cpus(&dev->link[0]);
+        initialize_cpus(dev->link_list);
 }
 
 static void cpu_bus_noop(device_t dev)
Index: svn/src/northbridge/intel/i3100/pciexp_porta_ep80579.c
===================================================================
--- svn.orig/src/northbridge/intel/i3100/pciexp_porta_ep80579.c
+++ svn/src/northbridge/intel/i3100/pciexp_porta_ep80579.c
@@ -56,7 +56,7 @@  static void pcie_init(struct device *dev
 
 static void pcie_bus_enable_resources(struct device *dev)
 {
-	if (dev->link[0].bridge_ctrl & PCI_BRIDGE_CTL_VGA) {
+	if (dev->link_list->bridge_ctrl & PCI_BRIDGE_CTL_VGA) {
 		printk(BIOS_SPEW, "Enable VGA IO/MEM forwarding on PCIe port\n");
 		pci_write_config8(dev, PCI_BRIDGE_CONTROL, 8);
 
Index: svn/src/northbridge/intel/i440bx/northbridge.c
===================================================================
--- svn.orig/src/northbridge/intel/i440bx/northbridge.c
+++ svn/src/northbridge/intel/i440bx/northbridge.c
@@ -82,8 +82,8 @@  static void i440bx_domain_set_resources(
 	device_t mc_dev;
 	uint32_t pci_tolm;
 
-	pci_tolm = find_pci_tolm(&dev->link[0]);
-	mc_dev = dev->link[0].children;
+	pci_tolm = find_pci_tolm(dev->link_list);
+	mc_dev = dev->link_list->children;
 	if (mc_dev) {
 		unsigned long tomk, tolmk;
 		int idx;
@@ -118,7 +118,7 @@  static void i440bx_domain_set_resources(
 		high_tables_size = HIGH_TABLES_SIZE * 1024;
 #endif
 	}
-	assign_resources(&dev->link[0]);
+	assign_resources(dev->link_list);
 }
 
 static struct device_operations pci_domain_ops = {
@@ -131,7 +131,7 @@  static struct device_operations pci_doma
 
 static void cpu_bus_init(device_t dev)
 {
-	initialize_cpus(&dev->link[0]);
+	initialize_cpus(dev->link_list);
 }
 
 static void cpu_bus_noop(device_t dev)
Index: svn/src/northbridge/intel/i440lx/northbridge.c
===================================================================
--- svn.orig/src/northbridge/intel/i440lx/northbridge.c
+++ svn/src/northbridge/intel/i440lx/northbridge.c
@@ -110,8 +110,8 @@  static void i440lx_domain_set_resources(
 	device_t mc_dev;
 	uint32_t pci_tolm;
 
-	pci_tolm = find_pci_tolm(&dev->link[0]);
-	mc_dev = dev->link[0].children;
+	pci_tolm = find_pci_tolm(dev->link_list);
+	mc_dev = dev->link_list->children;
 	if (mc_dev) {
 		unsigned long tomk, tolmk;
 		int idx;
@@ -146,7 +146,7 @@  static void i440lx_domain_set_resources(
 		high_tables_size = HIGH_TABLES_SIZE * 1024;
 #endif
 	}
-	assign_resources(&dev->link[0]);
+	assign_resources(dev->link_list);
 }
 
 static struct device_operations pci_domain_ops = {
@@ -159,7 +159,7 @@  static struct device_operations pci_doma
 
 static void cpu_bus_init(device_t dev)
 {
-	initialize_cpus(&dev->link[0]);
+	initialize_cpus(dev->link_list);
 }
 
 static void cpu_bus_noop(device_t dev)
Index: svn/src/northbridge/intel/i82810/northbridge.c
===================================================================
--- svn.orig/src/northbridge/intel/i82810/northbridge.c
+++ svn/src/northbridge/intel/i82810/northbridge.c
@@ -119,8 +119,8 @@  static void pci_domain_set_resources(dev
 	device_t mc_dev;
 	uint32_t pci_tolm;
 
-	pci_tolm = find_pci_tolm(&dev->link[0]);
-	mc_dev = dev->link[0].children;
+	pci_tolm = find_pci_tolm(dev->link_list);
+	mc_dev = dev->link_list->children;
 
 	if (mc_dev) {
 		/* Figure out which areas are/should be occupied by RAM.
@@ -178,7 +178,7 @@  static void pci_domain_set_resources(dev
 		high_tables_size = HIGH_TABLES_SIZE * 1024;
 #endif
 	}
-	assign_resources(&dev->link[0]);
+	assign_resources(dev->link_list);
 }
 
 static struct device_operations pci_domain_ops = {
@@ -191,7 +191,7 @@  static struct device_operations pci_doma
 
 static void cpu_bus_init(device_t dev)
 {
-	initialize_cpus(&dev->link[0]);
+	initialize_cpus(dev->link_list);
 }
 
 static void cpu_bus_noop(device_t dev)
Index: svn/src/northbridge/intel/i82830/northbridge.c
===================================================================
--- svn.orig/src/northbridge/intel/i82830/northbridge.c
+++ svn/src/northbridge/intel/i82830/northbridge.c
@@ -111,8 +111,8 @@  static void pci_domain_set_resources(dev
 	uint32_t pci_tolm;
 	int igd_memory = 0;
 
-	pci_tolm = find_pci_tolm(&dev->link[0]);
-	mc_dev = dev->link[0].children;
+	pci_tolm = find_pci_tolm(dev->link_list);
+	mc_dev = dev->link_list->children;
 	if (!mc_dev)
 		return;
 
@@ -152,7 +152,7 @@  static void pci_domain_set_resources(dev
 	ram_resource(dev, idx++, 768, 256);
 	ram_resource(dev, idx++, 1024, tolmk - 1024);
 
-	assign_resources(&dev->link[0]);
+	assign_resources(dev->link_list);
 
 #if CONFIG_WRITE_HIGH_TABLES==1
 	/* Leave some space for ACPI, PIRQ and MP tables */
@@ -171,7 +171,7 @@  static struct device_operations pci_doma
 
 static void cpu_bus_init(device_t dev)
 {
-	initialize_cpus(&dev->link[0]);
+	initialize_cpus(dev->link_list);
 }
 
 static void cpu_bus_noop(device_t dev)
Index: svn/src/northbridge/intel/i855/northbridge.c
===================================================================
--- svn.orig/src/northbridge/intel/i855/northbridge.c
+++ svn/src/northbridge/intel/i855/northbridge.c
@@ -83,8 +83,8 @@  static void pci_domain_set_resources(dev
         printk(BIOS_DEBUG, "Entered with dev vid = %x\n", dev->vendor);
 	printk(BIOS_DEBUG, "Entered with dev did = %x\n", dev->device);
 
-        pci_tolm = find_pci_tolm(&dev->link[0]);
-	mc_dev = dev->link[0].children->sibling;
+        pci_tolm = find_pci_tolm(dev->link_list);
+	mc_dev = dev->link_list->children->sibling;
 	printk(BIOS_DEBUG, "MC dev vendor = %x\n", mc_dev->vendor);
 	printk(BIOS_DEBUG, "MC dev device = %x\n", mc_dev->device);
 
@@ -134,7 +134,7 @@  static void pci_domain_set_resources(dev
 		high_tables_size = HIGH_TABLES_SIZE * 1024;
 #endif
 	}
-	assign_resources(&dev->link[0]);
+	assign_resources(dev->link_list);
 }
 
 static struct device_operations pci_domain_ops = {
@@ -147,7 +147,7 @@  static struct device_operations pci_doma
 
 static void cpu_bus_init(device_t dev)
 {
-        initialize_cpus(&dev->link[0]);
+        initialize_cpus(dev->link_list);
 }
 
 static void cpu_bus_noop(device_t dev)
Index: svn/src/northbridge/intel/i945/northbridge.c
===================================================================
--- svn.orig/src/northbridge/intel/i945/northbridge.c
+++ svn/src/northbridge/intel/i945/northbridge.c
@@ -138,7 +138,7 @@  static void pci_domain_set_resources(dev
 	/* Can we find out how much memory we can use at most
 	 * this way?
 	 */
-	pci_tolm = find_pci_tolm(&dev->link[0]);
+	pci_tolm = find_pci_tolm(dev->link_list);
 	printk(BIOS_DEBUG, "pci_tolm: 0x%x\n", pci_tolm);
 
 	printk(BIOS_SPEW, "Base of stolen memory: 0x%08x\n",
@@ -208,7 +208,7 @@  static void pci_domain_set_resources(dev
 		ram_resource(dev, 5, 4096 * 1024, tomk - 4 * 1024 * 1024);
 	}
 
-	assign_resources(&dev->link[0]);
+	assign_resources(dev->link_list);
 
 #if CONFIG_WRITE_HIGH_TABLES==1
 	/* Leave some space for ACPI, PIRQ and MP tables */
@@ -326,7 +326,7 @@  static const struct pci_driver mc_driver
 
 static void cpu_bus_init(device_t dev)
 {
-	initialize_cpus(&dev->link[0]);
+	initialize_cpus(dev->link_list);
 }
 
 static void cpu_bus_noop(device_t dev)
Index: svn/src/northbridge/via/cn400/northbridge.c
===================================================================
--- svn.orig/src/northbridge/via/cn400/northbridge.c
+++ svn/src/northbridge/via/cn400/northbridge.c
@@ -233,7 +233,7 @@  static void cn400_domain_set_resources(d
 
 	printk(BIOS_SPEW, "Entering %s.\n", __func__);
 
-	pci_tolm = find_pci_tolm(&dev->link[0]);
+	pci_tolm = find_pci_tolm(dev->link_list);
 	mc_dev = dev_find_device(PCI_VENDOR_ID_VIA,
 				 PCI_DEVICE_ID_VIA_CN400_MEMCTRL, 0);
 
@@ -267,7 +267,7 @@  static void cn400_domain_set_resources(d
 		ram_resource(dev, idx++, 768,
 			     (tolmk - 768 - CONFIG_VIDEO_MB * 1024));
 	}
-	assign_resources(&dev->link[0]);
+	assign_resources(dev->link_list);
 
 	printk(BIOS_SPEW, "Leaving %s.\n", __func__);
 }
@@ -276,7 +276,7 @@  static unsigned int cn400_domain_scan_bu
 {
 	printk(BIOS_DEBUG, "Entering %s.\n", __func__);
 
-	max = pci_scan_bus(&dev->link[0], PCI_DEVFN(0, 0), 0xff, max);
+	max = pci_scan_bus(dev->link_list, PCI_DEVFN(0, 0), 0xff, max);
 	return max;
 }
 
@@ -290,7 +290,7 @@  static struct device_operations pci_doma
 
 static void cpu_bus_init(device_t dev)
 {
-	initialize_cpus(&dev->link[0]);
+	initialize_cpus(dev->link_list);
 }
 
 static void cpu_bus_noop(device_t dev)
Index: svn/src/northbridge/via/cn700/northbridge.c
===================================================================
--- svn.orig/src/northbridge/via/cn700/northbridge.c
+++ svn/src/northbridge/via/cn700/northbridge.c
@@ -157,7 +157,7 @@  static void pci_domain_set_resources(dev
 
 	printk(BIOS_SPEW, "Entering cn700 pci_domain_set_resources.\n");
 
-	pci_tolm = find_pci_tolm(&dev->link[0]);
+	pci_tolm = find_pci_tolm(dev->link_list);
 	mc_dev = dev_find_device(PCI_VENDOR_ID_VIA,
 				 PCI_DEVICE_ID_VIA_CN700_MEMCTRL, 0);
 
@@ -199,7 +199,7 @@  static void pci_domain_set_resources(dev
 		ram_resource(dev, idx++, 768,
 			     (tolmk - 768 - CONFIG_VIDEO_MB * 1024));
 	}
-	assign_resources(&dev->link[0]);
+	assign_resources(dev->link_list);
 }
 
 static struct device_operations pci_domain_ops = {
@@ -212,7 +212,7 @@  static struct device_operations pci_doma
 
 static void cpu_bus_init(device_t dev)
 {
-	initialize_cpus(&dev->link[0]);
+	initialize_cpus(dev->link_list);
 }
 
 static void cpu_bus_noop(device_t dev)
Index: svn/src/northbridge/via/cx700/northbridge.c
===================================================================
--- svn.orig/src/northbridge/via/cx700/northbridge.c
+++ svn/src/northbridge/via/cx700/northbridge.c
@@ -87,7 +87,7 @@  static void pci_domain_set_resources(dev
 	unsigned char rambits;
 	int idx;
 
-	pci_tolm = find_pci_tolm(&dev->link[0]);
+	pci_tolm = find_pci_tolm(dev->link_list);
 	mc_dev = dev_find_device(PCI_VENDOR_ID_VIA, 0x3324, 0);
 
 	rambits = pci_read_config8(mc_dev, 0x88);
@@ -128,7 +128,7 @@  static void pci_domain_set_resources(dev
 	/* TODO: Hole needed? Should this go elsewhere? */
 	ram_resource(dev, idx++, 0, 640);	/* first 640k */
 	ram_resource(dev, idx++, 768, (tolmk - 768));	/* leave a hole for vga */
-	assign_resources(&dev->link[0]);
+	assign_resources(dev->link_list);
 }
 
 static struct device_operations pci_domain_ops = {
@@ -141,7 +141,7 @@  static struct device_operations pci_doma
 
 static void cpu_bus_init(device_t dev)
 {
-	initialize_cpus(&dev->link[0]);
+	initialize_cpus(dev->link_list);
 }
 
 static void cpu_bus_noop(device_t dev)
Index: svn/src/northbridge/via/vt8601/northbridge.c
===================================================================
--- svn.orig/src/northbridge/via/vt8601/northbridge.c
+++ svn/src/northbridge/via/vt8601/northbridge.c
@@ -98,8 +98,8 @@  static void pci_domain_set_resources(dev
 	device_t mc_dev;
         uint32_t pci_tolm;
 
-        pci_tolm = find_pci_tolm(&dev->link[0]);
-	mc_dev = dev->link[0].children;
+        pci_tolm = find_pci_tolm(dev->link_list);
+	mc_dev = dev->link_list->children;
 	if (mc_dev) {
 		unsigned long tomk, tolmk;
 		unsigned char rambits;
@@ -140,7 +140,7 @@  static void pci_domain_set_resources(dev
 		idx = 10;
 		ram_resource(dev, idx++, 0, tolmk);
 	}
-	assign_resources(&dev->link[0]);
+	assign_resources(dev->link_list);
 }
 
 static struct device_operations pci_domain_ops = {
@@ -153,7 +153,7 @@  static struct device_operations pci_doma
 
 static void cpu_bus_init(device_t dev)
 {
-        initialize_cpus(&dev->link[0]);
+        initialize_cpus(dev->link_list);
 }
 
 static void cpu_bus_noop(device_t dev)
Index: svn/src/northbridge/via/vt8623/northbridge.c
===================================================================
--- svn.orig/src/northbridge/via/vt8623/northbridge.c
+++ svn/src/northbridge/via/vt8623/northbridge.c
@@ -158,8 +158,8 @@  static void pci_domain_set_resources(dev
 
 	printk(BIOS_SPEW, "Entering vt8623 pci_domain_set_resources.\n");
 
-        pci_tolm = find_pci_tolm(&dev->link[0]);
-	mc_dev = dev->link[0].children;
+        pci_tolm = find_pci_tolm(dev->link_list);
+	mc_dev = dev->link_list->children;
 	if (mc_dev) {
 		unsigned long tomk, tolmk;
 		unsigned char rambits;
@@ -201,7 +201,7 @@  static void pci_domain_set_resources(dev
 		ram_resource(dev, idx++, 0, 640);		/* first 640k */
 		ram_resource(dev, idx++, 768, tolmk - 768);	/* leave a hole for vga */
 	}
-	assign_resources(&dev->link[0]);
+	assign_resources(dev->link_list);
 }
 
 static struct device_operations pci_domain_ops = {
@@ -214,7 +214,7 @@  static struct device_operations pci_doma
 
 static void cpu_bus_init(device_t dev)
 {
-        initialize_cpus(&dev->link[0]);
+        initialize_cpus(dev->link_list);
 }
 
 static void cpu_bus_noop(device_t dev)
Index: svn/src/northbridge/via/vx800/northbridge.c
===================================================================
--- svn.orig/src/northbridge/via/vx800/northbridge.c
+++ svn/src/northbridge/via/vx800/northbridge.c
@@ -128,7 +128,7 @@  static void pci_domain_set_resources(dev
 
 	printk(BIOS_SPEW, "Entering vx800 pci_domain_set_resources.\n");
 
-	pci_tolm = find_pci_tolm(&dev->link[0]);
+	pci_tolm = find_pci_tolm(dev->link_list);
 	mc_dev = dev_find_device(PCI_VENDOR_ID_VIA,
 				 PCI_DEVICE_ID_VIA_VX855_MEMCTRL, 0);
 
@@ -175,7 +175,7 @@  if register with invalid value we set fr
 		/* Leave a hole for vga, 0xa0000 - 0xc0000 */
 		ram_resource(dev, idx++, 768, (tolmk - 768));
 	}
-	assign_resources(&dev->link[0]);
+	assign_resources(dev->link_list);
 }
 
 static struct device_operations pci_domain_ops = {
@@ -188,7 +188,7 @@  static struct device_operations pci_doma
 
 static void cpu_bus_init(device_t dev)
 {
-	initialize_cpus(&dev->link[0]);
+	initialize_cpus(dev->link_list);
 }
 
 static void cpu_bus_noop(device_t dev)
Index: svn/src/southbridge/amd/amd8131/amd8131_bridge.c
===================================================================
--- svn.orig/src/southbridge/amd/amd8131/amd8131_bridge.c
+++ svn/src/southbridge/amd/amd8131/amd8131_bridge.c
@@ -25,7 +25,7 @@  static void amd8131_walk_children(struct
 			continue;
 		}
 		if (child->hdr_type == PCI_HEADER_TYPE_BRIDGE) {
-			amd8131_walk_children(&child->link[0], visit, ptr);
+			amd8131_walk_children(child->link_list, visit, ptr);
 		}
 		visit(child, ptr);
 	}
Index: svn/src/southbridge/amd/amd8132/amd8132_bridge.c
===================================================================
--- svn.orig/src/southbridge/amd/amd8132/amd8132_bridge.c
+++ svn/src/southbridge/amd/amd8132/amd8132_bridge.c
@@ -47,7 +47,7 @@  static void amd8132_walk_children(struct
 			continue;
 		}
 		if (child->hdr_type == PCI_HEADER_TYPE_BRIDGE) {
-			amd8132_walk_children(&child->link[0], visit, ptr);
+			amd8132_walk_children(child->link_list, visit, ptr);
 		}
 		visit(child, ptr);
 	}
Index: svn/src/southbridge/amd/sb600/sb600_lpc.c
===================================================================
--- svn.orig/src/southbridge/amd/sb600/sb600_lpc.c
+++ svn/src/southbridge/amd/sb600/sb600_lpc.c
@@ -106,7 +106,7 @@  static void sb600_lpc_read_resources(dev
  */
 static void sb600_lpc_enable_childrens_resources(device_t dev)
 {
-	u32 link;
+	struct bus *link;
 	u32 reg, reg_x;
 	int var_num = 0;
 	u16 reg_var[3];
@@ -114,9 +114,9 @@  static void sb600_lpc_enable_childrens_r
 	reg = pci_read_config32(dev, 0x44);
 	reg_x = pci_read_config32(dev, 0x48);
 
-	for (link = 0; link < dev->links; link++) {
+	for (link = dev->link_list; link; link = link->next) {
 		device_t child;
-		for (child = dev->link[link].children; child;
+		for (child = link->children; child;
 		     child = child->sibling) {
 			enable_resources(child);
 			if (child->enabled
Index: svn/src/southbridge/amd/sb700/sb700_lpc.c
===================================================================
--- svn.orig/src/southbridge/amd/sb700/sb700_lpc.c
+++ svn/src/southbridge/amd/sb700/sb700_lpc.c
@@ -118,7 +118,7 @@  static void sb700_lpc_set_resources(stru
  */
 static void sb700_lpc_enable_childrens_resources(device_t dev)
 {
-	u32 link;
+	struct bus *link;
 	u32 reg, reg_x;
 	int var_num = 0;
 	u16 reg_var[3];
@@ -126,9 +126,9 @@  static void sb700_lpc_enable_childrens_r
 	reg = pci_read_config32(dev, 0x44);
 	reg_x = pci_read_config32(dev, 0x48);
 
-	for (link = 0; link < dev->links; link++) {
+	for (link = dev->link_list; link; link = link->next) {
 		device_t child;
-		for (child = dev->link[link].children; child;
+		for (child = link->children; child;
 		     child = child->sibling) {
 			enable_resources(child);
 			if (child->enabled
Index: svn/src/southbridge/broadcom/bcm5785/bcm5785_lpc.c
===================================================================
--- svn.orig/src/southbridge/broadcom/bcm5785/bcm5785_lpc.c
+++ svn/src/southbridge/broadcom/bcm5785/bcm5785_lpc.c
@@ -67,14 +67,14 @@  static void bcm5785_lpc_read_resources(d
  */
 static void bcm5785_lpc_enable_childrens_resources(device_t dev)
 {
-        unsigned link;
+	struct bus *link;
 	uint32_t reg;
 
 	reg = pci_read_config8(dev, 0x44);
 
-        for (link = 0; link < dev->links; link++) {
+	for (link = dev->link_list; link; link = link->next) {
                 device_t child;
-                for (child = dev->link[link].children; child; child = child->sibling) {
+                for (child = link->children; child; child = child->sibling) {
                         enable_resources(child);
 			if(child->enabled && (child->path.type == DEVICE_PATH_PNP)) {
 				struct resource *res;
Index: svn/src/southbridge/intel/i82801gx/i82801gx_pci.c
===================================================================
--- svn.orig/src/southbridge/intel/i82801gx/i82801gx_pci.c
+++ svn/src/southbridge/intel/i82801gx/i82801gx_pci.c
@@ -100,10 +100,10 @@  static void ich_pci_bus_enable_resources
 	/* enable IO in command register if there is VGA card
 	 * connected with (even it does not claim IO resource)
 	 */
-	if (dev->link[0].bridge_ctrl & PCI_BRIDGE_CTL_VGA)
+	if (dev->link_list->bridge_ctrl & PCI_BRIDGE_CTL_VGA)
 		dev->command |= PCI_COMMAND_IO;
 	ctrl = pci_read_config16(dev, PCI_BRIDGE_CONTROL);
-	ctrl |= dev->link[0].bridge_ctrl;
+	ctrl |= dev->link_list->bridge_ctrl;
 	ctrl |= (PCI_BRIDGE_CTL_PARITY + PCI_BRIDGE_CTL_SERR); /* error check */
 	printk(BIOS_DEBUG, "%s bridge ctrl <- %04x\n", dev_path(dev), ctrl);
 	pci_write_config16(dev, PCI_BRIDGE_CONTROL, ctrl);
Index: svn/src/southbridge/intel/pxhd/pxhd_bridge.c
===================================================================
--- svn.orig/src/southbridge/intel/pxhd/pxhd_bridge.c
+++ svn/src/southbridge/intel/pxhd/pxhd_bridge.c
@@ -41,8 +41,7 @@  static unsigned int pxhd_scan_bridge(dev
 {
 	int bus_100Mhz = 0;
 
-	dev->link[0].dev = dev;
-	dev->links = 1;
+	dev->link_list->dev = dev;
 
 	get_option(&bus_100Mhz, "pxhd_bus_speed_100");
 	if(bus_100Mhz) {
@@ -58,7 +57,7 @@  static unsigned int pxhd_scan_bridge(dev
 		pci_write_config16(dev, 0x40, word);
 
 		/* reset the bus to make the new frequencies effective */
-		pci_bus_reset(&dev->link[0]);
+		pci_bus_reset(dev->link_list);
 	}
 	return pcix_scan_bridge(dev, max);
 }
Index: svn/src/southbridge/nvidia/ck804/ck804_lpc.c
===================================================================
--- svn.orig/src/southbridge/nvidia/ck804/ck804_lpc.c
+++ svn/src/southbridge/nvidia/ck804/ck804_lpc.c
@@ -231,15 +231,15 @@  static void ck804_lpc_read_resources(dev
  */
 static void ck804_lpc_enable_childrens_resources(device_t dev)
 {
-	unsigned link;
+	struct bus *link;
 	uint32_t reg, reg_var[4];
 	int i, var_num = 0;
 
 	reg = pci_read_config32(dev, 0xa0);
 
-	for (link = 0; link < dev->links; link++) {
+	for (link = dev->link_list; link; link = link->next) {
 		device_t child;
-		for (child = dev->link[link].children; child; child = child->sibling) {
+		for (child = link->children; child; child = child->sibling) {
 			enable_resources(child);
 			if (child->enabled && (child->path.type == DEVICE_PATH_PNP)) {
 				struct resource *res;
Index: svn/src/southbridge/nvidia/ck804/ck804_smbus.c
===================================================================
--- svn.orig/src/southbridge/nvidia/ck804/ck804_smbus.c
+++ svn/src/southbridge/nvidia/ck804/ck804_smbus.c
@@ -23,7 +23,7 @@  static int lsmbus_recv_byte(device_t dev
 	device = dev->path.i2c.device;
 	pbus = get_pbus_smbus(dev);
 
-	res = find_resource(pbus->dev, 0x20 + (pbus->link * 4));
+	res = find_resource(pbus->dev, 0x20 + (pbus->link_num * 4));
 
 	return do_smbus_recv_byte(res->base, device);
 }
@@ -37,7 +37,7 @@  static int lsmbus_send_byte(device_t dev
 	device = dev->path.i2c.device;
 	pbus = get_pbus_smbus(dev);
 
-	res = find_resource(pbus->dev, 0x20 + (pbus->link * 4));
+	res = find_resource(pbus->dev, 0x20 + (pbus->link_num * 4));
 
 	return do_smbus_send_byte(res->base, device, val);
 }
@@ -51,7 +51,7 @@  static int lsmbus_read_byte(device_t dev
 	device = dev->path.i2c.device;
 	pbus = get_pbus_smbus(dev);
 
-	res = find_resource(pbus->dev, 0x20 + (pbus->link * 4));
+	res = find_resource(pbus->dev, 0x20 + (pbus->link_num * 4));
 
 	return do_smbus_read_byte(res->base, device, address);
 }
@@ -65,7 +65,7 @@  static int lsmbus_write_byte(device_t de
 	device = dev->path.i2c.device;
 	pbus = get_pbus_smbus(dev);
 
-	res = find_resource(pbus->dev, 0x20 + (pbus->link * 4));
+	res = find_resource(pbus->dev, 0x20 + (pbus->link_num * 4));
 
 	return do_smbus_write_byte(res->base, device, address, val);
 }
Index: svn/src/southbridge/nvidia/mcp55/mcp55_lpc.c
===================================================================
--- svn.orig/src/southbridge/nvidia/mcp55/mcp55_lpc.c
+++ svn/src/southbridge/nvidia/mcp55/mcp55_lpc.c
@@ -205,16 +205,16 @@  static void mcp55_lpc_read_resources(dev
  */
 static void mcp55_lpc_enable_childrens_resources(device_t dev)
 {
-	unsigned link;
 	uint32_t reg, reg_var[4];
 	int i;
 	int var_num = 0;
+	struct bus *link;
 
 	reg = pci_read_config32(dev, 0xa0);
 
-	for (link = 0; link < dev->links; link++) {
+	for (link = dev->link_list; link; link = link->next) {
 		device_t child;
-		for (child = dev->link[link].children; child; child = child->sibling) {
+		for (child = link->children; child; child = child->sibling) {
 			enable_resources(child);
 			if(child->enabled && (child->path.type == DEVICE_PATH_PNP)) {
 				struct resource *res;
Index: svn/src/southbridge/nvidia/mcp55/mcp55_smbus.c
===================================================================
--- svn.orig/src/southbridge/nvidia/mcp55/mcp55_smbus.c
+++ svn/src/southbridge/nvidia/mcp55/mcp55_smbus.c
@@ -41,7 +41,7 @@  static int lsmbus_recv_byte(device_t dev
 	device = dev->path.i2c.device;
 	pbus = get_pbus_smbus(dev);
 
-	res = find_resource(pbus->dev, 0x20 + (pbus->link * 4));
+	res = find_resource(pbus->dev, 0x20 + (pbus->link_num * 4));
 
 	return do_smbus_recv_byte(res->base, device);
 }
@@ -55,7 +55,7 @@  static int lsmbus_send_byte(device_t dev
 	device = dev->path.i2c.device;
 	pbus = get_pbus_smbus(dev);
 
-	res = find_resource(pbus->dev, 0x20 + (pbus->link * 4));
+	res = find_resource(pbus->dev, 0x20 + (pbus->link_num * 4));
 
 	return do_smbus_send_byte(res->base, device, val);
 }
@@ -69,7 +69,7 @@  static int lsmbus_read_byte(device_t dev
 	device = dev->path.i2c.device;
 	pbus = get_pbus_smbus(dev);
 
-	res = find_resource(pbus->dev, 0x20 + (pbus->link * 4));
+	res = find_resource(pbus->dev, 0x20 + (pbus->link_num * 4));
 
 	return do_smbus_read_byte(res->base, device, address);
 }
@@ -83,7 +83,7 @@  static int lsmbus_write_byte(device_t de
 	device = dev->path.i2c.device;
 	pbus = get_pbus_smbus(dev);
 
-	res = find_resource(pbus->dev, 0x20 + (pbus->link * 4));
+	res = find_resource(pbus->dev, 0x20 + (pbus->link_num * 4));
 
 	return do_smbus_write_byte(res->base, device, address, val);
 }
Index: svn/src/southbridge/sis/sis966/sis966_lpc.c
===================================================================
--- svn.orig/src/southbridge/sis/sis966/sis966_lpc.c
+++ svn/src/southbridge/sis/sis966/sis966_lpc.c
@@ -198,16 +198,16 @@  static void sis966_lpc_read_resources(de
  */
 static void sis966_lpc_enable_childrens_resources(device_t dev)
 {
-	unsigned link;
+	struct bus *link;
 	uint32_t reg, reg_var[4];
 	int i;
 	int var_num = 0;
 
 	reg = pci_read_config32(dev, 0xa0);
 
-	for (link = 0; link < dev->links; link++) {
+	for (link = dev->link_list; link; link = link->next) {
 		device_t child;
-		for (child = dev->link[link].children; child; child = child->sibling) {
+		for (child = link->children; child; child = child->sibling) {
 			enable_resources(child);
 			if(child->enabled && (child->path.type == DEVICE_PATH_PNP)) {
 				struct resource *res;
Index: svn/util/sconfig/main.c
===================================================================
--- svn.orig/util/sconfig/main.c
+++ svn/util/sconfig/main.c
@@ -278,10 +278,14 @@  void add_register(struct device *dev, ch
 }
 
 static void pass0(FILE *fil, struct device *ptr) {
+	if (ptr->type == device && ptr->id == 0)
+		fprintf(fil, "struct bus %s_links[];\n", ptr->name);
 	if ((ptr->type == device) && (ptr->id != 0) && (!ptr->used)) {
 		fprintf(fil, "struct device %s;\n", ptr->name);
 		if (ptr->rescnt > 0)
 			fprintf(fil, "struct resource %s_res[];\n", ptr->name);
+		if (ptr->children || ptr->multidev)
+			fprintf(fil, "struct bus %s_links[];\n", ptr->name);
 	}
 	if ((ptr->type == device) && (ptr->id != 0) && ptr->used)
 		fprintf(fil, "struct device %s;\n", ptr->aliased_name);
@@ -291,7 +295,7 @@  static void pass1(FILE *fil, struct devi
 	if (!ptr->used && (ptr->type == device)) {
 		fprintf(fil, "struct device %s = {\n", ptr->name);
 		fprintf(fil, "\t.ops = %s,\n", (ptr->ops)?(ptr->ops):"0");
-		fprintf(fil, "\t.bus = &%s.link[%d],\n", ptr->bus->name, ptr->bus->link);
+		fprintf(fil, "\t.bus = &%s_links[%d],\n", ptr->bus->name, ptr->bus->link);
 		fprintf(fil, "\t.path = {");
 		fprintf(fil, ptr->path, ptr->path_a, ptr->path_b);
 		fprintf(fil, "},\n");
@@ -301,33 +305,10 @@  static void pass1(FILE *fil, struct devi
 			fprintf(fil, "\t.resource_list = &%s_res[0],\n", ptr->name);
 		}
 		int link = 0;
-		fprintf(fil, "\t.link = {\n");
-		if (ptr->multidev) {
-			struct device *d = ptr;
-			while (d) {
-				if (device_match(d, ptr)) {
-					fprintf(fil, "\t\t[%d] = {\n", d->link);
-					fprintf(fil, "\t\t\t.link = %d,\n", d->link);
-					fprintf(fil, "\t\t\t.dev = &%s,\n", d->name);
-					if (d->children)
-						fprintf(fil, "\t\t\t.children = &%s,\n", d->children->name);
-					fprintf(fil, "\t\t},\n");
-					link++;
-				}
-				d = d->next_sibling;
-			}
-		} else {
-			if (ptr->children) {
-				fprintf(fil, "\t\t[0] = {\n");
-				fprintf(fil, "\t\t\t.link = 0,\n");
-				fprintf(fil, "\t\t\t.dev = &%s,\n", ptr->name);
-				fprintf(fil, "\t\t\t.children = &%s,\n", ptr->children->name);
-				fprintf(fil, "\t\t},\n");
-				link++;
-			}
-		}
-		fprintf(fil, "\t},\n");
-		fprintf(fil, "\t.links = %d,\n", link);
+		if (ptr->children)
+			fprintf(fil, "\t.link_list = &%s_links[0],\n", ptr->name);
+		else
+			fprintf(fil, "\t.link_list = NULL,\n", ptr->name);
 		if (ptr->sibling)
 			fprintf(fil, "\t.sibling = &%s,\n", ptr->sibling->name);
 		if (ptr->chip->chiph_exists) {
@@ -356,6 +337,37 @@  static void pass1(FILE *fil, struct devi
 		}
 		fprintf(fil, "\t };\n");
 	}
+	if (!ptr->used && ptr->type == device && ptr->children) {
+		fprintf(fil, "struct bus %s_links[] = {\n", ptr->name);
+		if (ptr->multidev) {
+			struct device *d = ptr;
+			while (d) {
+				if (device_match(d, ptr)) {
+					fprintf(fil, "\t\t[%d] = {\n", d->link);
+					fprintf(fil, "\t\t\t.link_num = %d,\n", d->link);
+					fprintf(fil, "\t\t\t.dev = &%s,\n", d->name);
+					if (d->children)
+						fprintf(fil, "\t\t\t.children = &%s,\n", d->children->name);
+					if (device_match(d->next_sibling, ptr))
+						fprintf(fil, "\t\t\t.next=&%s_links[%d],\n", d->name, d->link+1);
+					else
+						fprintf(fil, "\t\t\t.next = NULL,\n");
+					fprintf(fil, "\t\t},\n");
+				}
+				d = d->next_sibling;
+			}
+		} else {
+			if (ptr->children) {
+				fprintf(fil, "\t\t[0] = {\n");
+				fprintf(fil, "\t\t\t.link_num = 0,\n");
+				fprintf(fil, "\t\t\t.dev = &%s,\n", ptr->name);
+				fprintf(fil, "\t\t\t.children = &%s,\n", ptr->children->name);
+				fprintf(fil, "\t\t\t.next = NULL,\n");
+				fprintf(fil, "\t\t},\n");
+			}
+		}
+		fprintf(fil, "\t};\n");
+	}
 	if ((ptr->type == chip) && (ptr->chiph_exists)) {
 		if (ptr->reg) {
 			fprintf(fil, "struct %s_config %s_info_%d\t= {\n", ptr->name_underscore, ptr->name_underscore, ptr->id);
Index: svn/src/mainboard/ibase/mb899/mptable.c
===================================================================
--- svn.orig/src/mainboard/ibase/mb899/mptable.c
+++ svn/src/mainboard/ibase/mb899/mptable.c
@@ -70,7 +70,7 @@  static void *smp_write_config_table(void
 	if (!riser)
 		riser = dev_find_device(0x3388, 0x0022, 0);
 	if (riser) {
-		riser_bus = riser->link[0].secondary;
+		riser_bus = riser->link_list->secondary;
 		printk(BIOS_SPEW, "Riser bus is %x\n", riser_bus);
 		max_pci_bus = riser_bus;
 	}