Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / arch / mips / fw / arc / identify.c

diff --git a/kernel/arch/mips/fw/arc/identify.c b/kernel/arch/mips/fw/arc/identify.c
new file mode 100644 (file)
index 0000000..f90266c
--- /dev/null
+++ b/kernel/arch/mips/fw/arc/identify.c
@@ -0,0 +1,116 @@
+/*
+ * 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 (davem@davemloft.net)
+ */
+#include <linux/bug.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 flags;
+};
+
+static struct smatch mach_table[] = {
+       {
+               .arcname        = "SGI-IP22",
+               .liname         = "SGI Indy",
+               .flags          = PROM_FLAG_ARCS,
+       }, {
+               .arcname        = "SGI-IP27",
+               .liname         = "SGI Origin",
+               .flags          = PROM_FLAG_ARCS,
+       }, {
+               .arcname        = "SGI-IP28",
+               .liname         = "SGI IP28",
+               .flags          = PROM_FLAG_ARCS,
+       }, {
+               .arcname        = "SGI-IP30",
+               .liname         = "SGI Octane",
+               .flags          = PROM_FLAG_ARCS,
+       }, {
+               .arcname        = "SGI-IP32",
+               .liname         = "SGI O2",
+               .flags          = PROM_FLAG_ARCS,
+       }, {
+               .arcname        = "Microsoft-Jazz",
+               .liname         = "Jazz MIPS_Magnum_4000",
+               .flags          = 0,
+       }, {
+               .arcname        = "PICA-61",
+               .liname         = "Jazz Acer_PICA_61",
+               .flags          = 0,
+       }, {
+               .arcname        = "RM200PCI",
+               .liname         = "SNI RM200_PCI",
+               .flags          = PROM_FLAG_DONT_FREE_TEMP,
+       }, {
+               .arcname        = "RM200PCI-R5K",
+               .liname         = "SNI RM200_PCI-R5K",
+               .flags          = 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;
+
+       prom_flags = mach->flags;
+}