Add the rt linux 4.1.3-rt3 as base

Import the rt linux 4.1.3-rt3 as OPNFV kvm base.

It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:

commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date:   Sat Jul 25 12:13:34 2015 +0200

    Prepare v4.1.3-rt3

    Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>

We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.

Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>

2 files changed, 79 insertions, 0 deletions

diff --git a/kernel/arch/mips/emma/common/Makefile b/kernel/arch/mips/emma/common/Makefile
new file mode 100644
index 000000000..f27d84d19
--- /dev/null
+++ b/kernel/arch/mips/emma/common/Makefile
@@ -0,0 +1,10 @@
+#
+#  Copyright (C) NEC Electronics Corporation 2005-2006
+#
+#  This program is free software; you can redistribute it and/or modify
+#  it under the terms of the GNU General Public License as published by
+#  the Free Software Foundation; either version 2 of the License, or
+#  (at your option) any later version.
+#
+
+obj-$(CONFIG_NEC_MARKEINS)	+= prom.o
diff --git a/kernel/arch/mips/emma/common/prom.c b/kernel/arch/mips/emma/common/prom.c
new file mode 100644
index 000000000..cae42259d
--- /dev/null
+++ b/kernel/arch/mips/emma/common/prom.c
@@ -0,0 +1,69 @@
+/*
+ *  Copyright (C) NEC Electronics Corporation 2004-2006
+ *
+ *  This file is based on the arch/mips/ddb5xxx/common/prom.c
+ *
+ *	Copyright 2001 MontaVista Software Inc.
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+#include <linux/init.h>
+#include <linux/mm.h>
+#include <linux/sched.h>
+#include <linux/bootmem.h>
+
+#include <asm/addrspace.h>
+#include <asm/bootinfo.h>
+#include <asm/emma/emma2rh.h>
+
+const char *get_system_type(void)
+{
+#ifdef CONFIG_NEC_MARKEINS
+	return "NEC EMMA2RH Mark-eins";
+#else
+#error  Unknown NEC board
+#endif
+}
+
+/* [jsun@junsun.net] PMON passes arguments in C main() style */
+void __init prom_init(void)
+{
+	int argc = fw_arg0;
+	char **arg = (char **)fw_arg1;
+	int i;
+
+	/* if user passes kernel args, ignore the default one */
+	if (argc > 1)
+		arcs_cmdline[0] = '\0';
+
+	/* arg[0] is "g", the rest is boot parameters */
+	for (i = 1; i < argc; i++) {
+		if (strlen(arcs_cmdline) + strlen(arg[i]) + 1
+		    >= sizeof(arcs_cmdline))
+			break;
+		strcat(arcs_cmdline, arg[i]);
+		strcat(arcs_cmdline, " ");
+	}
+
+#ifdef CONFIG_NEC_MARKEINS
+	add_memory_region(0, EMMA2RH_RAM_SIZE, BOOT_MEM_RAM);
+#else
+#error  Unknown NEC board
+#endif
+}
+
+void __init prom_free_prom_memory(void)
+{
+}