Merge tag 'v2.6.38' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6

[mv-sheeva.git] / arch / mips / kernel / mips_machine.c

diff --git a/arch/mips/kernel/mips_machine.c b/arch/mips/kernel/mips_machine.c
new file mode 100644 (file)
index 0000000..411a058
--- /dev/null
+++ b/arch/mips/kernel/mips_machine.c
@@ -0,0 +1,86 @@
+/*
+ *  Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org>
+ *
+ *  This program is free software; you can redistribute it and/or modify it
+ *  under the terms of the GNU General Public License version 2 as published
+ *  by the Free Software Foundation.
+ *
+ */
+#include <linux/mm.h>
+#include <linux/string.h>
+#include <linux/slab.h>
+
+#include <asm/mips_machine.h>
+
+static struct mips_machine *mips_machine __initdata;
+static char *mips_machine_name = "Unknown";
+
+#define for_each_machine(mach) \
+       for ((mach) = (struct mips_machine *)&__mips_machines_start; \
+            (mach) && \
+            (unsigned long)(mach) < (unsigned long)&__mips_machines_end; \
+            (mach)++)
+
+__init void mips_set_machine_name(const char *name)
+{
+       char *p;
+
+       if (name == NULL)
+               return;
+
+       p = kstrdup(name, GFP_KERNEL);
+       if (!p)
+               pr_err("MIPS: no memory for machine_name\n");
+
+       mips_machine_name = p;
+}
+
+char *mips_get_machine_name(void)
+{
+       return mips_machine_name;
+}
+
+__init int mips_machtype_setup(char *id)
+{
+       struct mips_machine *mach;
+
+       for_each_machine(mach) {
+               if (mach->mach_id == NULL)
+                       continue;
+
+               if (strcmp(mach->mach_id, id) == 0) {
+                       mips_machtype = mach->mach_type;
+                       return 0;
+               }
+       }
+
+       pr_err("MIPS: no machine found for id '%s', supported machines:\n", id);
+       pr_err("%-24s %s\n", "id", "name");
+       for_each_machine(mach)
+               pr_err("%-24s %s\n", mach->mach_id, mach->mach_name);
+
+       return 1;
+}
+
+__setup("machtype=", mips_machtype_setup);
+
+__init void mips_machine_setup(void)
+{
+       struct mips_machine *mach;
+
+       for_each_machine(mach) {
+               if (mips_machtype == mach->mach_type) {
+                       mips_machine = mach;
+                       break;
+               }
+       }
+
+       if (!mips_machine)
+               return;
+
+       mips_set_machine_name(mips_machine->mach_name);
+       pr_info("MIPS: machine is %s\n", mips_machine_name);
+
+       if (mips_machine->mach_setup)
+               mips_machine->mach_setup();
+}