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, 64 insertions, 0 deletions

diff --git a/kernel/arch/mips/pnx833x/common/setup.c b/kernel/arch/mips/pnx833x/common/setup.c
new file mode 100644
index 000000000..99b4d9423
--- /dev/null
+++ b/kernel/arch/mips/pnx833x/common/setup.c
@@ -0,0 +1,64 @@
+/*
+ *  setup.c: Setup PNX833X Soc.
+ *
+ *  Copyright 2008 NXP Semiconductors
+ *	  Chris Steel <chris.steel@nxp.com>
+ *    Daniel Laird <daniel.j.laird@nxp.com>
+ *
+ *  Based on software written by:
+ *	Nikita Youshchenko <yoush@debian.org>, based on PNX8550 code.
+ *
+ *  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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/ioport.h>
+#include <linux/io.h>
+#include <linux/pci.h>
+#include <asm/reboot.h>
+#include <pnx833x.h>
+#include <gpio.h>
+
+extern void pnx833x_board_setup(void);
+extern void pnx833x_machine_restart(char *);
+extern void pnx833x_machine_halt(void);
+extern void pnx833x_machine_power_off(void);
+
+int __init plat_mem_setup(void)
+{
+	/* fake pci bus to avoid bounce buffers */
+	PCI_DMA_BUS_IS_PHYS = 1;
+
+	/* set mips clock to 320MHz */
+#if defined(CONFIG_SOC_PNX8335)
+	PNX8335_WRITEFIELD(0x17, CLOCK_PLL_CPU_CTL, FREQ);
+#endif
+	pnx833x_gpio_init();	/* so it will be ready in board_setup() */
+
+	pnx833x_board_setup();
+
+	_machine_restart = pnx833x_machine_restart;
+	_machine_halt = pnx833x_machine_halt;
+	pm_power_off = pnx833x_machine_power_off;
+
+	/* IO/MEM resources. */
+	set_io_port_base(KSEG1);
+	ioport_resource.start = 0;
+	ioport_resource.end = ~0;
+	iomem_resource.start = 0;
+	iomem_resource.end = ~0;
+
+	return 0;
+}