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diff --git a/include/asm-ia64/sn/klconfig.h b/include/asm-ia64/sn/klconfig.h
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+++ b/include/asm-ia64/sn/klconfig.h
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+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Derived from IRIX <sys/SN/klconfig.h>.
+ *
+ * Copyright (C) 1992-1997,1999,2001-2004 Silicon Graphics, Inc.  All Rights Reserved.
+ * Copyright (C) 1999 by Ralf Baechle
+ */
+#ifndef _ASM_IA64_SN_KLCONFIG_H
+#define _ASM_IA64_SN_KLCONFIG_H
+
+/*
+ * The KLCONFIG structures store info about the various BOARDs found
+ * during Hardware Discovery. In addition, it stores info about the
+ * components found on the BOARDs.
+ */
+
+typedef s32 klconf_off_t;
+
+
+/* Functions/macros needed to use this structure */
+
+typedef struct kl_config_hdr {
+        char            pad[20];
+        klconf_off_t    ch_board_info;  /* the link list of boards */
+        char            pad0[88];
+} kl_config_hdr_t;
+
+
+#define NODE_OFFSET_TO_LBOARD(nasid,off)        (lboard_t*)(GLOBAL_CAC_ADDR((nasid), (off)))
+
+/*
+ * The KLCONFIG area is organized as a LINKED LIST of BOARDs. A BOARD
+ * can be either 'LOCAL' or 'REMOTE'. LOCAL means it is attached to 
+ * the LOCAL/current NODE. REMOTE means it is attached to a different
+ * node.(TBD - Need a way to treat ROUTER boards.)
+ *
+ * There are 2 different structures to represent these boards -
+ * lboard - Local board, rboard - remote board. These 2 structures
+ * can be arbitrarily mixed in the LINKED LIST of BOARDs. (Refer
+ * Figure below). The first byte of the rboard or lboard structure
+ * is used to find out its type - no unions are used.
+ * If it is a lboard, then the config info of this board will be found
+ * on the local node. (LOCAL NODE BASE + offset value gives pointer to 
+ * the structure.
+ * If it is a rboard, the local structure contains the node number
+ * and the offset of the beginning of the LINKED LIST on the remote node.
+ * The details of the hardware on a remote node can be built locally,
+ * if required, by reading the LINKED LIST on the remote node and 
+ * ignoring all the rboards on that node.
+ *
+ * The local node uses the REMOTE NODE NUMBER + OFFSET to point to the 
+ * First board info on the remote node. The remote node list is 
+ * traversed as the local list, using the REMOTE BASE ADDRESS and not
+ * the local base address and ignoring all rboard values.
+ *
+ * 
+ KLCONFIG
+
+ +------------+      +------------+      +------------+      +------------+
+ |  lboard    |  +-->|   lboard   |  +-->|   rboard   |  +-->|   lboard   |
+ +------------+  |   +------------+  |   +------------+  |   +------------+
+ | board info |  |   | board info |  |   |errinfo,bptr|  |   | board info |
+ +------------+  |   +------------+  |   +------------+  |   +------------+
+ | offset     |--+   |  offset    |--+   |  offset    |--+   |offset=NULL |
+ +------------+      +------------+      +------------+      +------------+
+
+
+ +------------+
+ | board info |
+ +------------+       +--------------------------------+
+ | compt 1    |------>| type, rev, diaginfo, size ...  |  (CPU)
+ +------------+       +--------------------------------+
+ | compt 2    |--+
+ +------------+  |    +--------------------------------+
+ |  ...       |  +--->| type, rev, diaginfo, size ...  |  (MEM_BANK)
+ +------------+       +--------------------------------+
+ | errinfo    |--+
+ +------------+  |    +--------------------------------+
+                 +--->|r/l brd errinfo,compt err flags |
+                      +--------------------------------+
+
+ *
+ * Each BOARD consists of COMPONENTs and the BOARD structure has 
+ * pointers (offsets) to its COMPONENT structure.
+ * The COMPONENT structure has version info, size and speed info, revision,
+ * error info and the NIC info. This structure can accommodate any
+ * BOARD with arbitrary COMPONENT composition.
+ *
+ * The ERRORINFO part of each BOARD has error information
+ * that describes errors about the BOARD itself. It also has flags to
+ * indicate the COMPONENT(s) on the board that have errors. The error 
+ * information specific to the COMPONENT is present in the respective 
+ * COMPONENT structure.
+ *
+ * The ERRORINFO structure is also treated like a COMPONENT, ie. the 
+ * BOARD has pointers(offset) to the ERRORINFO structure. The rboard
+ * structure also has a pointer to the ERRORINFO structure. This is 
+ * the place to store ERRORINFO about a REMOTE NODE, if the HUB on
+ * that NODE is not working or if the REMOTE MEMORY is BAD. In cases where 
+ * only the CPU of the REMOTE NODE is disabled, the ERRORINFO pointer can
+ * be a NODE NUMBER, REMOTE OFFSET combination, pointing to error info 
+ * which is present on the REMOTE NODE.(TBD)
+ * REMOTE ERRINFO can be stored on any of the nearest nodes 
+ * or on all the nearest nodes.(TBD)
+ * Like BOARD structures, REMOTE ERRINFO structures can be built locally
+ * using the rboard errinfo pointer.
+ *
+ * In order to get useful information from this Data organization, a set of
+ * interface routines are provided (TBD). The important thing to remember while
+ * manipulating the structures, is that, the NODE number information should
+ * be used. If the NODE is non-zero (remote) then each offset should
+ * be added to the REMOTE BASE ADDR else it should be added to the LOCAL BASE ADDR. 
+ * This includes offsets for BOARDS, COMPONENTS and ERRORINFO.
+ * 
+ * Note that these structures do not provide much info about connectivity.
+ * That info will be part of HWGRAPH, which is an extension of the cfg_t
+ * data structure. (ref IP27prom/cfg.h) It has to be extended to include
+ * the IO part of the Network(TBD).
+ *
+ * The data structures below define the above concepts.
+ */
+
+
+/*
+ * BOARD classes
+ */
+
+#define KLCLASS_MASK    0xf0   
+#define KLCLASS_NONE    0x00
+#define KLCLASS_NODE    0x10             /* CPU, Memory and HUB board */
+#define KLCLASS_CPU     KLCLASS_NODE    
+#define KLCLASS_IO      0x20             /* BaseIO, 4 ch SCSI, ethernet, FDDI 
+                                            and the non-graphics widget boards */
+#define KLCLASS_ROUTER  0x30             /* Router board */
+#define KLCLASS_MIDPLANE 0x40            /* We need to treat this as a board
+                                            so that we can record error info */
+#define KLCLASS_IOBRICK 0x70            /* IP35 iobrick */
+#define KLCLASS_MAX     8               /* Bump this if a new CLASS is added */
+
+#define KLCLASS(_x) ((_x) & KLCLASS_MASK)
+
+
+/*
+ * board types
+ */
+
+#define KLTYPE_MASK     0x0f
+#define KLTYPE(_x)      ((_x) & KLTYPE_MASK)
+
+#define KLTYPE_SNIA     (KLCLASS_CPU | 0x1)
+#define KLTYPE_TIO      (KLCLASS_CPU | 0x2)
+
+#define KLTYPE_ROUTER     (KLCLASS_ROUTER | 0x1)
+#define KLTYPE_META_ROUTER (KLCLASS_ROUTER | 0x3)
+#define KLTYPE_REPEATER_ROUTER (KLCLASS_ROUTER | 0x4)
+
+#define KLTYPE_IOBRICK_XBOW     (KLCLASS_MIDPLANE | 0x2)
+
+#define KLTYPE_IOBRICK          (KLCLASS_IOBRICK | 0x0)
+#define KLTYPE_NBRICK           (KLCLASS_IOBRICK | 0x4)
+#define KLTYPE_PXBRICK          (KLCLASS_IOBRICK | 0x6)
+#define KLTYPE_IXBRICK          (KLCLASS_IOBRICK | 0x7)
+#define KLTYPE_CGBRICK          (KLCLASS_IOBRICK | 0x8)
+#define KLTYPE_OPUSBRICK        (KLCLASS_IOBRICK | 0x9)
+#define KLTYPE_SABRICK          (KLCLASS_IOBRICK | 0xa)
+#define KLTYPE_IABRICK          (KLCLASS_IOBRICK | 0xb)
+#define KLTYPE_PABRICK          (KLCLASS_IOBRICK | 0xc)
+#define KLTYPE_GABRICK          (KLCLASS_IOBRICK | 0xd)
+
+
+/* 
+ * board structures
+ */
+
+#define MAX_COMPTS_PER_BRD 24
+
+typedef struct lboard_s {
+        klconf_off_t    brd_next_any;     /* Next BOARD */
+        unsigned char   struct_type;      /* type of structure, local or remote */
+        unsigned char   brd_type;         /* type+class */
+        unsigned char   brd_sversion;     /* version of this structure */
+        unsigned char   brd_brevision;    /* board revision */
+        unsigned char   brd_promver;      /* board prom version, if any */
+        unsigned char   brd_flags;        /* Enabled, Disabled etc */
+        unsigned char   brd_slot;         /* slot number */
+        unsigned short  brd_debugsw;      /* Debug switches */
+        geoid_t         brd_geoid;        /* geo id */
+        partid_t        brd_partition;    /* Partition number */
+        unsigned short  brd_diagval;      /* diagnostic value */
+        unsigned short  brd_diagparm;     /* diagnostic parameter */
+        unsigned char   brd_inventory;    /* inventory history */
+        unsigned char   brd_numcompts;    /* Number of components */
+        nic_t           brd_nic;          /* Number in CAN */
+        nasid_t         brd_nasid;        /* passed parameter */
+        klconf_off_t    brd_compts[MAX_COMPTS_PER_BRD]; /* pointers to COMPONENTS */
+        klconf_off_t    brd_errinfo;      /* Board's error information */
+        struct lboard_s *brd_parent;      /* Logical parent for this brd */
+        char            pad0[4];
+        unsigned char   brd_confidence;   /* confidence that the board is bad */
+        nasid_t         brd_owner;        /* who owns this board */
+        unsigned char   brd_nic_flags;    /* To handle 8 more NICs */
+        char            pad1[24];         /* future expansion */
+        char            brd_name[32];
+        nasid_t         brd_next_same_host; /* host of next brd w/same nasid */
+        klconf_off_t    brd_next_same;    /* Next BOARD with same nasid */
+} lboard_t;
+
+#define KLCF_NUM_COMPS(_brd)    ((_brd)->brd_numcompts)
+#define NODE_OFFSET_TO_KLINFO(n,off)    ((klinfo_t*) TO_NODE_CAC(n,off))
+#define KLCF_NEXT(_brd)         \
+        ((_brd)->brd_next_same ?     \
+         (NODE_OFFSET_TO_LBOARD((_brd)->brd_next_same_host, (_brd)->brd_next_same)): NULL)
+#define KLCF_NEXT_ANY(_brd)         \
+        ((_brd)->brd_next_any ?     \
+         (NODE_OFFSET_TO_LBOARD(NASID_GET(_brd), (_brd)->brd_next_any)): NULL)
+#define KLCF_COMP(_brd, _ndx)   \
+                ((((_brd)->brd_compts[(_ndx)]) == 0) ? 0 : \
+                        (NODE_OFFSET_TO_KLINFO(NASID_GET(_brd), (_brd)->brd_compts[(_ndx)])))
+
+
+/*
+ * Generic info structure. This stores common info about a 
+ * component.
+ */
+ 
+typedef struct klinfo_s {                  /* Generic info */
+        unsigned char   struct_type;       /* type of this structure */
+        unsigned char   struct_version;    /* version of this structure */
+        unsigned char   flags;            /* Enabled, disabled etc */
+        unsigned char   revision;         /* component revision */
+        unsigned short  diagval;          /* result of diagnostics */
+        unsigned short  diagparm;         /* diagnostic parameter */
+        unsigned char   inventory;        /* previous inventory status */
+        unsigned short  partid;            /* widget part number */
+        nic_t           nic;              /* MUst be aligned properly */
+        unsigned char   physid;           /* physical id of component */
+        unsigned int    virtid;           /* virtual id as seen by system */
+        unsigned char   widid;            /* Widget id - if applicable */
+        nasid_t         nasid;            /* node number - from parent */
+        char            pad1;             /* pad out structure. */
+        char            pad2;             /* pad out structure. */
+        void            *data;
+        klconf_off_t    errinfo;          /* component specific errors */
+        unsigned short  pad3;             /* pci fields have moved over to */
+        unsigned short  pad4;             /* klbri_t */
+} klinfo_t ;
+
+
+static inline lboard_t *find_lboard_any(lboard_t * start, unsigned char brd_type)
+{
+        /* Search all boards stored on this node. */
+
+        while (start) {
+                if (start->brd_type == brd_type)
+                        return start;
+                start = KLCF_NEXT_ANY(start);
+        }
+        /* Didn't find it. */
+        return (lboard_t *) NULL;
+}
+
+
+/* external declarations of Linux kernel functions. */
+
+extern lboard_t *root_lboard[];
+extern klinfo_t *find_component(lboard_t *brd, klinfo_t *kli, unsigned char type);
+extern klinfo_t *find_first_component(lboard_t *brd, unsigned char type);
+
+#endif /* _ASM_IA64_SN_KLCONFIG_H */