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, 128 insertions, 0 deletions

diff --git a/kernel/arch/arm/mach-ep93xx/micro9.c b/kernel/arch/arm/mach-ep93xx/micro9.c
new file mode 100644
index 000000000..373583c29
--- /dev/null
+++ b/kernel/arch/arm/mach-ep93xx/micro9.c
@@ -0,0 +1,128 @@
+/*
+ *  linux/arch/arm/mach-ep93xx/micro9.c
+ *
+ * Copyright (C) 2006 Contec Steuerungstechnik & Automation GmbH
+ *                    Manfred Gruber <m.gruber@tirol.com>
+ * Copyright (C) 2009 Contec Steuerungstechnik & Automation GmbH
+ *                    Hubert Feurstein <hubert.feurstein@contec.at>
+ *
+ * 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/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/io.h>
+
+#include <mach/hardware.h>
+
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+
+#include "soc.h"
+
+/*************************************************************************
+ * Micro9 NOR Flash
+ *
+ * Micro9-High has up to 64MB of 32-bit flash on CS1
+ * Micro9-Mid has up to 64MB of either 32-bit or 16-bit flash on CS1
+ * Micro9-Lite uses a separate MTD map driver for flash support
+ * Micro9-Slim has up to 64MB of either 32-bit or 16-bit flash on CS1
+ *************************************************************************/
+static unsigned int __init micro9_detect_bootwidth(void)
+{
+	u32 v;
+
+	/* Detect the bus width of the external flash memory */
+	v = __raw_readl(EP93XX_SYSCON_SYSCFG);
+	if (v & EP93XX_SYSCON_SYSCFG_LCSN7)
+		return 4; /* 32-bit */
+	else
+		return 2; /* 16-bit */
+}
+
+static void __init micro9_register_flash(void)
+{
+	unsigned int width;
+
+	if (machine_is_micro9())
+		width = 4;
+	else if (machine_is_micro9m() || machine_is_micro9s())
+		width = micro9_detect_bootwidth();
+	else
+		width = 0;
+
+	if (width)
+		ep93xx_register_flash(width, EP93XX_CS1_PHYS_BASE, SZ_64M);
+}
+
+
+/*************************************************************************
+ * Micro9 Ethernet
+ *************************************************************************/
+static struct ep93xx_eth_data __initdata micro9_eth_data = {
+	.phy_id		= 0x1f,
+};
+
+
+static void __init micro9_init_machine(void)
+{
+	ep93xx_init_devices();
+	ep93xx_register_eth(&micro9_eth_data, 1);
+	micro9_register_flash();
+}
+
+
+#ifdef CONFIG_MACH_MICRO9H
+MACHINE_START(MICRO9, "Contec Micro9-High")
+	/* Maintainer: Hubert Feurstein <hubert.feurstein@contec.at> */
+	.atag_offset	= 0x100,
+	.map_io		= ep93xx_map_io,
+	.init_irq	= ep93xx_init_irq,
+	.init_time	= ep93xx_timer_init,
+	.init_machine	= micro9_init_machine,
+	.init_late	= ep93xx_init_late,
+	.restart	= ep93xx_restart,
+MACHINE_END
+#endif
+
+#ifdef CONFIG_MACH_MICRO9M
+MACHINE_START(MICRO9M, "Contec Micro9-Mid")
+	/* Maintainer: Hubert Feurstein <hubert.feurstein@contec.at> */
+	.atag_offset	= 0x100,
+	.map_io		= ep93xx_map_io,
+	.init_irq	= ep93xx_init_irq,
+	.init_time	= ep93xx_timer_init,
+	.init_machine	= micro9_init_machine,
+	.init_late	= ep93xx_init_late,
+	.restart	= ep93xx_restart,
+MACHINE_END
+#endif
+
+#ifdef CONFIG_MACH_MICRO9L
+MACHINE_START(MICRO9L, "Contec Micro9-Lite")
+	/* Maintainer: Hubert Feurstein <hubert.feurstein@contec.at> */
+	.atag_offset	= 0x100,
+	.map_io		= ep93xx_map_io,
+	.init_irq	= ep93xx_init_irq,
+	.init_time	= ep93xx_timer_init,
+	.init_machine	= micro9_init_machine,
+	.init_late	= ep93xx_init_late,
+	.restart	= ep93xx_restart,
+MACHINE_END
+#endif
+
+#ifdef CONFIG_MACH_MICRO9S
+MACHINE_START(MICRO9S, "Contec Micro9-Slim")
+	/* Maintainer: Hubert Feurstein <hubert.feurstein@contec.at> */
+	.atag_offset	= 0x100,
+	.map_io		= ep93xx_map_io,
+	.init_irq	= ep93xx_init_irq,
+	.init_time	= ep93xx_timer_init,
+	.init_machine	= micro9_init_machine,
+	.init_late	= ep93xx_init_late,
+	.restart	= ep93xx_restart,
+MACHINE_END
+#endif