1 files changed, 123 insertions, 0 deletions
diff --git a/arch/mips/fw/arc/identify.c b/arch/mips/fw/arc/identify.c
new file mode 100644
index 00000000000..4b907369b0f
--- /dev/null
+++ b/arch/mips/fw/arc/identify.c
@@ -0,0 +1,123 @@
+/*
+ * 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/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-IP30",
+		"SGI Octane",
+		MACH_GROUP_SGI,
+		MACH_SGI_IP30,
+		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 < ARRAY_SIZE(mach_table); 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;
+}