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, 82 insertions, 0 deletions

diff --git a/kernel/arch/arm/mach-vexpress/Kconfig b/kernel/arch/arm/mach-vexpress/Kconfig
new file mode 100644
index 000000000..10f938957
--- /dev/null
+++ b/kernel/arch/arm/mach-vexpress/Kconfig
@@ -0,0 +1,82 @@
+menuconfig ARCH_VEXPRESS
+	bool "ARM Ltd. Versatile Express family" if ARCH_MULTI_V7
+	select ARCH_REQUIRE_GPIOLIB
+	select ARCH_SUPPORTS_BIG_ENDIAN
+	select ARM_AMBA
+	select ARM_GIC
+	select ARM_GLOBAL_TIMER
+	select ARM_TIMER_SP804
+	select COMMON_CLK_VERSATILE
+	select HAVE_ARM_SCU if SMP
+	select HAVE_ARM_TWD if SMP
+	select HAVE_PATA_PLATFORM
+	select ICST
+	select NO_IOPORT_MAP
+	select PLAT_VERSATILE
+	select POWER_RESET
+	select POWER_RESET_VEXPRESS
+	select POWER_SUPPLY
+	select REGULATOR if MMC_ARMMMCI
+	select REGULATOR_FIXED_VOLTAGE if REGULATOR
+	select VEXPRESS_CONFIG
+	select VEXPRESS_SYSCFG
+	select MFD_VEXPRESS_SYSREG
+	help
+	  This option enables support for systems using Cortex processor based
+	  ARM core and logic (FPGA) tiles on the Versatile Express motherboard,
+	  for example:
+
+	  - CoreTile Express A5x2 (V2P-CA5s)
+	  - CoreTile Express A9x4 (V2P-CA9)
+	  - CoreTile Express A15x2 (V2P-CA15)
+	  - LogicTile Express 13MG (V2F-2XV6) with A5, A7, A9 or A15 SMMs
+	    (Soft Macrocell Models)
+	  - Versatile Express RTSMs (Models)
+
+	  You must boot using a Flattened Device Tree in order to use these
+	  platforms. The traditional (ATAGs) boot method is not usable on
+	  these boards with this option.
+
+if ARCH_VEXPRESS
+
+config ARCH_VEXPRESS_CORTEX_A5_A9_ERRATA
+	bool "Enable A5 and A9 only errata work-arounds"
+	default y
+	select ARM_ERRATA_643719 if SMP
+	select ARM_ERRATA_720789
+	select PL310_ERRATA_753970 if CACHE_L2X0
+	help
+	  Provides common dependencies for Versatile Express platforms
+	  based on Cortex-A5 and Cortex-A9 processors. In order to
+	  build a working kernel, you must also enable relevant core
+	  tile support or Flattened Device Tree based support options.
+
+config ARCH_VEXPRESS_DCSCB
+	bool "Dual Cluster System Control Block (DCSCB) support"
+	depends on MCPM
+	select ARM_CCI400_PORT_CTRL
+	help
+	  Support for the Dual Cluster System Configuration Block (DCSCB).
+	  This is needed to provide CPU and cluster power management
+	  on RTSM implementing big.LITTLE.
+
+config ARCH_VEXPRESS_SPC
+	bool "Versatile Express Serial Power Controller (SPC)"
+	select PM_OPP
+	help
+	  The TC2 (A15x2 A7x3) versatile express core tile integrates a logic
+	  block called Serial Power Controller (SPC) that provides the interface
+	  between the dual cluster test-chip and the M3 microcontroller that
+	  carries out power management.
+
+config ARCH_VEXPRESS_TC2_PM
+	bool "Versatile Express TC2 power management"
+	depends on MCPM
+	select ARM_CCI400_PORT_CTRL
+	select ARCH_VEXPRESS_SPC
+	select ARM_CPU_SUSPEND
+	help
+	  Support for CPU and cluster power management on Versatile Express
+	  with a TC2 (A15x2 A7x3) big.LITTLE core tile.
+
+endif