1 files changed, 119 insertions, 0 deletions

diff --git a/arch/mips/arc/identify.c b/arch/mips/arc/identify.c
new file mode 100644
index 000000000000..0dd7a345eb79
--- /dev/null
+++ b/arch/mips/arc/identify.c
@@ -0,0 +1,119 @@
+/*
+ * 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.
+ *
+ * identify.c: identify machine by looking up system identifier
+ *
+ * Copyright (C) 1998 Thomas Bogendoerfer
+ *
+ * This code is based on arch/mips/sgi/kernel/system.c, which is
+ *
+ * Copyright (C) 1996 David S. Miller (dm@engr.sgi.com)
+ */
+#include <linux/config.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/string.h>
+
+#include <asm/sgialib.h>
+#include <asm/bootinfo.h>
+
+struct smatch {
+        char *arcname;
+        char *liname;
+        int group;
+        int type;
+        int flags;
+};
+
+static struct smatch mach_table[] = {
+        {       "SGI-IP22",
+                "SGI Indy",
+                MACH_GROUP_SGI,
+                MACH_SGI_IP22,
+                PROM_FLAG_ARCS
+        }, {    "SGI-IP27",
+                "SGI Origin",
+                MACH_GROUP_SGI,
+                MACH_SGI_IP27,
+                PROM_FLAG_ARCS
+        }, {    "SGI-IP28",
+                "SGI IP28",
+                MACH_GROUP_SGI,
+                MACH_SGI_IP28,
+                PROM_FLAG_ARCS
+        }, {    "SGI-IP32",
+                "SGI O2",
+                MACH_GROUP_SGI,
+                MACH_SGI_IP32,
+                PROM_FLAG_ARCS
+        }, {    "Microsoft-Jazz",
+                "Jazz MIPS_Magnum_4000",
+                MACH_GROUP_JAZZ,
+                MACH_MIPS_MAGNUM_4000,
+                0
+        }, {    "PICA-61",
+                "Jazz Acer_PICA_61",
+                MACH_GROUP_JAZZ,
+                MACH_ACER_PICA_61,
+                0
+        }, {    "RM200PCI",
+                "SNI RM200_PCI",
+                MACH_GROUP_SNI_RM,
+                MACH_SNI_RM200_PCI,
+                PROM_FLAG_DONT_FREE_TEMP
+        }
+};
+
+int prom_flags;
+
+static struct smatch * __init string_to_mach(const char *s)
+{
+        int i;
+
+        for (i = 0; i < (sizeof(mach_table) / sizeof (mach_table[0])); i++) {
+                if (!strcmp(s, mach_table[i].arcname))
+                        return &mach_table[i];
+        }
+
+        panic("Yeee, could not determine architecture type <%s>", s);
+}
+
+char *system_type;
+
+const char *get_system_type(void)
+{
+        return system_type;
+}
+
+void __init prom_identify_arch(void)
+{
+        pcomponent *p;
+        struct smatch *mach;
+        const char *iname;
+
+        /*
+         * The root component tells us what machine architecture we have here.
+         */
+        p = ArcGetChild(PROM_NULL_COMPONENT);
+        if (p == NULL) {
+#ifdef CONFIG_SGI_IP27
+                /* IP27 PROM misbehaves, seems to not implement ARC
+                   GetChild().  So we just assume it's an IP27.  */
+                iname = "SGI-IP27";
+#else
+                iname = "Unknown";
+#endif
+        } else
+                iname = (char *) (long) p->iname;
+
+        printk("ARCH: %s\n", iname);
+        mach = string_to_mach(iname);
+        system_type = mach->liname;
+
+        mips_machgroup = mach->group;
+        mips_machtype = mach->type;
+        prom_flags = mach->flags;
+}