Index: arch/mips32/include/drivers/arc.h
===================================================================
--- arch/mips32/include/drivers/arc.h	(revision 60780c5ab35bf923d6dbeef9c6ea7b26099f9c92)
+++ arch/mips32/include/drivers/arc.h	(revision 60780c5ab35bf923d6dbeef9c6ea7b26099f9c92)
@@ -0,0 +1,139 @@
+/*
+ * Copyright (C) 2005 Ondrej Palkovsky
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * - Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ * - The name of the author may not be used to endorse or promote products
+ *   derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __mips32_ARC_H_
+#define __mips32_ARC_H_
+
+#include <arch/types.h>
+
+#define ARC_BASE_ADDR 0x1000;
+#define ARC_MAGIC 0x53435241
+
+typedef struct  {
+} arc_component;
+
+typedef struct {
+	__u16 year;
+	__u16 month;
+	__u16 day;
+	__u16 hour;
+	__u16 minutes;
+	__u16 seconds;
+	__u16 mseconds;
+} arc_timeinfo ;
+
+/* This is the SGI block structure, WinNT has it different */
+typedef enum {
+	ExceptionBlock,
+	SystemParameterBlock,
+	FreeContiguous,
+	FreeMemory,
+	BadMemory,
+	LoadedProgram,
+	FirmwareTemporary,
+	FirmwarePermanent
+}arc_memorytype_t;
+
+typedef struct  {
+	arc_memorytype_t type;
+	__u32 basepage;  /* *4096 = baseaddr */
+	__u32 basecount;
+}arc_memdescriptor_t;
+
+typedef struct {
+	char vendorid[8];
+	char prodid[8];
+}arc_sysid_t;
+
+typedef struct {
+	long (*load)(void); /* ... */
+	long (*invoke)(__u32 eaddr,__u32 saddr,__u32 argc,char **argv,
+		       char **envp);
+	long (*execute)(char *path,__u32 argc,char **argv,char **envp);
+	void (*halt)(void);
+	void (*powerdown)(void);
+	void (*restart)(void);
+	void (*reboot)(void);
+	void (*enterinteractivemode)(void);
+	long (*reserved)(void);
+/* 10 */	
+	arc_component * (*getpeer)(arc_component *c); 
+	arc_component * (*getchild)(arc_component *c);
+	arc_component * (*getparent)(arc_component *c);
+	long (*getconfigurationdata)(void *configdata, arc_component *c);
+	long (*addchild)(arc_component *c, arc_component *template,
+			 void *configdata);
+	long (*deletecomponet)(arc_component *current);
+	long (*getcomponent)(char *path);
+	long (*saveconfiguration)(void);
+	arc_sysid_t (*getsystemid)(void);
+	arc_memdescriptor_t * (*getmemorydescriptor)(arc_memdescriptor_t *cur);
+/* 20 */
+	long (*reserved2)(void);
+	arc_timeinfo * (*gettime)(void);
+	__u32 (*getrelativetime)(void);
+	long (*getdirectoryentry)();
+	long (*open)(void); /* ... */
+	long (*close)(__u32 fileid);
+	long (*read)(__u32 fileid,void *buf,__u32 n,__u32 *cnt);
+	long (*getreadstatus)();
+	long (*write)(__u32 fileid, void *buf,__u32 n,__u32 *cnt);
+	long (*seek)(void); /* ... */
+/* 30 */
+	long (*mount)(void); /* ... */
+	char * (*getenvironmentvariable)(char *name);
+	char * (*setenvironmentvariable)(char *name, char *value);
+	long (*getfileinformation)(void); /* ... */
+	long (*setfileinformation)(__u32 fileid,__u32 attflags,__u32 attmask);
+	void (*flushallcaches)(void);
+	long (*testunicodecharacter)(void); /* ... */
+	long (*getdisplaystatus)(void); /* ... */
+} arc_func_vector_t;
+
+typedef struct {
+	__u32 signature;
+	__u32 length;
+	__u16 version;
+	__u16 revision;
+	void *restartblock;
+	void *debugblock;
+	void *gevector;
+	void *utlbmissvector;
+	__u32 firmwarevectorlen;
+	arc_func_vector_t *firmwarevector;
+	__u32 privvectorlen;
+	void *privvector;
+	__u32 adaptercount;
+}__attribute__ ((packed)) arc_sbp;
+
+extern int init_arc(void);
+extern void arc_print_memory_map(void);
+extern int arc_enabled(void);
+extern void arc_putchar(char ch);
+
+#endif