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>

1 files changed, 62 insertions, 0 deletions

diff --git a/kernel/arch/c6x/Makefile b/kernel/arch/c6x/Makefile
new file mode 100644
index 000000000..6b0be670d
--- /dev/null
+++ b/kernel/arch/c6x/Makefile
@@ -0,0 +1,62 @@
+#
+# linux/arch/c6x/Makefile
+#
+# 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.
+#
+
+KBUILD_DEFCONFIG := dsk6455_defconfig
+
+cflags-y += -mno-dsbt -msdata=none -D__linux__
+
+cflags-$(CONFIG_C6X_BIG_KERNEL) += -mlong-calls
+
+CFLAGS_MODULE   += -mlong-calls -mno-dsbt -msdata=none
+
+CHECKFLAGS      +=
+
+KBUILD_CFLAGS   += $(cflags-y)
+KBUILD_AFLAGS   += $(cflags-y)
+
+ifdef CONFIG_CPU_BIG_ENDIAN
+KBUILD_CFLAGS   += -mbig-endian
+KBUILD_AFLAGS   += -mbig-endian
+LINKFLAGS       += -mbig-endian
+KBUILD_LDFLAGS  += -mbig-endian
+LDFLAGS += -EB
+endif
+
+head-y          := arch/c6x/kernel/head.o
+core-y          += arch/c6x/kernel/ arch/c6x/mm/ arch/c6x/platforms/
+libs-y          += arch/c6x/lib/
+
+# Default to vmlinux.bin, override when needed
+all: vmlinux.bin
+
+boot := arch/$(ARCH)/boot
+
+# Are we making a dtbImage.<boardname> target? If so, crack out the boardname
+DTB:=$(subst dtbImage.,,$(filter dtbImage.%, $(MAKECMDGOALS)))
+export DTB
+
+ifneq ($(DTB),)
+core-y	+= $(boot)/dts/
+endif
+
+# With make 3.82 we cannot mix normal and wildcard targets
+
+vmlinux.bin: vmlinux
+	$(Q)$(MAKE) $(build)=$(boot) $(patsubst %,$(boot)/%,$@)
+
+dtbImage.%: vmlinux
+	$(Q)$(MAKE) $(build)=$(boot) $(patsubst %,$(boot)/%,$@)
+
+archclean:
+	$(Q)$(MAKE) $(clean)=$(boot)
+
+define archhelp
+  @echo '  vmlinux.bin     - Binary kernel image (arch/$(ARCH)/boot/vmlinux.bin)'
+  @echo '  dtbImage.<dt>   - ELF image with $(arch)/boot/dts/<dt>.dts linked in'
+  @echo '                  - stripped elf with fdt blob'
+endef