diff --git a/arch/mips/include/asm/xtalk/xtalk.h b/arch/mips/include/asm/xtalk/xtalk.h
index 26d2ed1..b6d8373 100644
--- a/arch/mips/include/asm/xtalk/xtalk.h
+++ b/arch/mips/include/asm/xtalk/xtalk.h
@@ -16,19 +16,19 @@
 /*
  * User-level device driver visible types
  */
-typedef char		xwidgetnum_t;	/* xtalk widget number	(0..15) */
+typedef u8 xwidgetnum_t;	/* xtalk widget number	(0..15) */
 
 #define XWIDGET_NONE		-1
 
-typedef int xwidget_part_num_t; /* xtalk widget part number */
+typedef s32 xwidget_part_num_t; /* xtalk widget part number */
 
 #define XWIDGET_PART_NUM_NONE	-1
 
-typedef int		xwidget_rev_num_t;	/* xtalk widget revision number */
+typedef s32 xwidget_rev_num_t;	/* xtalk widget revision number */
 
 #define XWIDGET_REV_NUM_NONE	-1
 
-typedef int xwidget_mfg_num_t;	/* xtalk widget manufacturing ID */
+typedef s32 xwidget_mfg_num_t;	/* xtalk widget manufacturing ID */
 
 #define XWIDGET_MFG_NUM_NONE	-1
 
@@ -48,9 +48,9 @@ typedef struct xtalk_piomap_s *xtalk_piomap_t;
 #define XIO_PACK(p, o)	((((uint64_t)(p))<<XIO_PORT_SHIFT) | ((o)&XIO_ADDR_BITS))
 
 #ifdef CONFIG_PCI
-extern int bridge_probe(nasid_t nasid, int widget, int masterwid);
+extern int bridge_probe(nasid_t nasid, xwidgetnum_t widget, xwidgetnum_t masterwid);
 #else
-static inline int bridge_probe(nasid_t nasid, int widget, int masterwid)
+static inline int bridge_probe(nasid_t nasid, xwidgetnum_t widget, xwidgetnum_t masterwid)
 {
 	return 0;
 }
diff --git a/arch/mips/sgi-ip27/ip27-xtalk.c b/arch/mips/sgi-ip27/ip27-xtalk.c
index 20f582a..dcc317c 100644
--- a/arch/mips/sgi-ip27/ip27-xtalk.c
+++ b/arch/mips/sgi-ip27/ip27-xtalk.c
@@ -9,38 +9,61 @@
 
 #include <linux/kernel.h>
 #include <linux/smp.h>
-#include <asm/sn/types.h>
-#include <asm/sn/klconfig.h>
+#include <linux/platform_device.h>
+
+#include <asm/sn/addrs.h>
 #include <asm/sn/hub.h>
+#include <asm/sn/klconfig.h>
+#include <asm/sn/types.h>
 #include <asm/pci/bridge.h>
 #include <asm/xtalk/xtalk.h>
+#include <asm/xtalk/xwidget.h>
 
-
-#define XBOW_WIDGET_PART_NUM	0x0
-#define XXBOW_WIDGET_PART_NUM	0xd000	/* Xbow in Xbridge */
 #define BASE_XBOW_PORT		8     /* Lowest external port */
 
-extern int bridge_probe(nasid_t nasid, int widget, int masterwid);
+unsigned long inline xtalk_get_swin(int node, int wid)
+{
+	return NODE_SWIN_BASE(node, wid);
+}
+
+extern int bridge_probe(nasid_t nasid, xwidgetnum_t widget, xwidgetnum_t masterwid);
 
-static int probe_one_port(nasid_t nasid, int widget, int masterwid)
+static int probe_one_port(nasid_t nasid, xwidgetnum_t widget, xwidgetnum_t masterwid)
 {
-	widgetreg_t		widget_id;
-	xwidget_part_num_t	partnum;
+	const struct widget_ident *res;
+	u32 wid_id, wid_part, wid_mfgr, wid_rev;
 
-	widget_id = *(volatile widgetreg_t *)
+	wid_id = *(volatile widgetreg_t *)
 		(RAW_NODE_SWIN_BASE(nasid, widget) + WIDGET_ID);
-	partnum = XWIDGET_PART_NUM(widget_id);
 
-	printk(KERN_INFO "Cpu %d, Nasid 0x%x, widget 0x%x (partnum 0x%x) is ",
-			smp_processor_id(), nasid, widget, partnum);
+	wid_mfgr = XWIDGET_MFG_NUM(wid_id);
+	wid_part = XWIDGET_PART_NUM(wid_id);
+	wid_rev = XWIDGET_REV_NUM(wid_id);
 
-	switch (partnum) {
-	case BRIDGE_WIDGET_PART_NUM:
-	case XBRIDGE_WIDGET_PART_NUM:
+	for (res = widget_idents; res->name; res++)
+		if ((res->mfgr == wid_mfgr) &&
+			(res->part == wid_part))
+			break;
+
+	if (res->name == NULL) {
+		pr_info("xtalk:%d unknown widget 0x%08x\n", widget, wid_id);
+		return -ENODEV;
+	}
+
+	pr_info("Cpu %d, Nasid 0x%x, widget 0x%x (part 0x%x) is ",
+		smp_processor_id(), nasid, widget, wid_part);
+
+	switch (wid_part) {
+	case WIDGET_BRIDG_PART_NUM:
+	case WIDGET_XBRDG_PART_NUM:
 		bridge_probe(nasid, widget, masterwid);
 		break;
 	default:
-		break;
+		if (platform_device_register_simple(res->name, widget, NULL, 0))
+			pr_info("xtalk:%d %s widget (rev %s) registered as "
+				"platform device.\n", widget, res->name,
+				(res->revs[wid_rev] ?
+				 res->revs[wid_rev] : "unknown"));
 	}
 
 	return 0;
@@ -50,7 +73,7 @@ static int xbow_probe(nasid_t nasid)
 {
 	lboard_t *brd;
 	klxbow_t *xbow_p;
-	unsigned masterwid, i;
+	xwidgetnum_t masterwid, i;
 
 	printk("is xbow\n");
 
@@ -103,8 +126,8 @@ void xtalk_probe_node(cnodeid_t nid)
 {
 	volatile u64		hubreg;
 	nasid_t			nasid;
-	xwidget_part_num_t	partnum;
-	widgetreg_t		widget_id;
+	const struct widget_ident *res;
+	u32 wid_id, wid_part, wid_mfgr, wid_rev;
 
 	nasid = COMPACT_TO_NASID_NODEID(nid);
 	hubreg = REMOTE_HUB_L(nasid, IIO_LLP_CSR);
@@ -113,23 +136,41 @@ void xtalk_probe_node(cnodeid_t nid)
 	if (!(hubreg & IIO_LLP_CSR_IS_UP))
 		return;
 
-	widget_id = *(volatile widgetreg_t *)
+	wid_id = *(volatile widgetreg_t *)
 		       (RAW_NODE_SWIN_BASE(nasid, 0x0) + WIDGET_ID);
-	partnum = XWIDGET_PART_NUM(widget_id);
+	wid_mfgr = XWIDGET_MFG_NUM(wid_id);
+	wid_part = XWIDGET_PART_NUM(wid_id);
+	wid_rev = XWIDGET_REV_NUM(wid_id);
+
+	for (res = widget_idents; res->name; res++)
+		if ((res->mfgr == wid_mfgr) &&
+			(res->part == wid_part))
+			break;
+
+	if (res->name == NULL) {
+		pr_info("xtalk:%d unknown widget 0x%08x\n", 0x0, wid_id);
+		goto out;
+	}
 
-	printk(KERN_INFO "Cpu %d, Nasid 0x%x: partnum 0x%x is ",
-			smp_processor_id(), nasid, partnum);
+	pr_info("Cpu %d, Nasid 0x%x, wid_part 0x%x (part 0x%x) is ",
+		smp_processor_id(), nasid, 0x0, wid_part);
 
-	switch (partnum) {
-	case BRIDGE_WIDGET_PART_NUM:
-		bridge_probe(nasid, 0x8, 0xa);
+	switch (wid_part) {
+	case WIDGET_BRIDG_PART_NUM:
+		bridge_probe(nasid, 0x8, 0xa);  /* XXX: Fix! */
 		break;
-	case XBOW_WIDGET_PART_NUM:
-	case XXBOW_WIDGET_PART_NUM:
+	case WIDGET_XBOW_PART_NUM:
+	case WIDGET_XXBOW_PART_NUM:
 		xbow_probe(nasid);
 		break;
 	default:
-		printk(" unknown widget??\n");
-		break;
+		if (platform_device_register_simple(res->name, 0x0, NULL, 0))
+			pr_info("xtalk:%d %s widget (rev %s) registered as "
+				"as platform device.\n", 0x0, res->name,
+				(res->revs[wid_rev] ?
+				 res->revs[wid_rev] : "unknown"));
 	}
+
+out:
+	return;
 }