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, 113 insertions, 0 deletions

diff --git a/kernel/arch/m32r/platforms/oaks32r/setup.c b/kernel/arch/m32r/platforms/oaks32r/setup.c
new file mode 100644
index 000000000..f8373c069
--- /dev/null
+++ b/kernel/arch/m32r/platforms/oaks32r/setup.c
@@ -0,0 +1,113 @@
+/*
+ *  linux/arch/m32r/platforms/oaks32r/setup.c
+ *
+ *  Setup routines for OAKS32R Board
+ *
+ *  Copyright (c) 2002-2005  Hiroyuki Kondo, Hirokazu Takata,
+ *                           Hitoshi Yamamoto, Mamoru Sakugawa
+ */
+
+#include <linux/irq.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+
+#include <asm/m32r.h>
+#include <asm/io.h>
+
+#define irq2port(x) (M32R_ICU_CR1_PORTL + ((x - 1) * sizeof(unsigned long)))
+
+icu_data_t icu_data[NR_IRQS];
+
+static void disable_oaks32r_irq(unsigned int irq)
+{
+	unsigned long port, data;
+
+	port = irq2port(irq);
+	data = icu_data[irq].icucr|M32R_ICUCR_ILEVEL7;
+	outl(data, port);
+}
+
+static void enable_oaks32r_irq(unsigned int irq)
+{
+	unsigned long port, data;
+
+	port = irq2port(irq);
+	data = icu_data[irq].icucr|M32R_ICUCR_IEN|M32R_ICUCR_ILEVEL6;
+	outl(data, port);
+}
+
+static void mask_oaks32r(struct irq_data *data)
+{
+	disable_oaks32r_irq(data->irq);
+}
+
+static void unmask_oaks32r(struct irq_data *data)
+{
+	enable_oaks32r_irq(data->irq);
+}
+
+static void shutdown_oaks32r(struct irq_data *data)
+{
+	unsigned long port;
+
+	port = irq2port(data->irq);
+	outl(M32R_ICUCR_ILEVEL7, port);
+}
+
+static struct irq_chip oaks32r_irq_type =
+{
+	.name		= "OAKS32R-IRQ",
+	.irq_shutdown	= shutdown_oaks32r,
+	.irq_mask	= mask_oaks32r,
+	.irq_unmask	= unmask_oaks32r,
+};
+
+void __init init_IRQ(void)
+{
+	static int once = 0;
+
+	if (once)
+		return;
+	else
+		once++;
+
+#ifdef CONFIG_NE2000
+	/* INT3 : LAN controller (RTL8019AS) */
+	irq_set_chip_and_handler(M32R_IRQ_INT3, &oaks32r_irq_type,
+				 handle_level_irq);
+	icu_data[M32R_IRQ_INT3].icucr = M32R_ICUCR_IEN|M32R_ICUCR_ISMOD10;
+	disable_oaks32r_irq(M32R_IRQ_INT3);
+#endif /* CONFIG_M32R_NE2000 */
+
+	/* MFT2 : system timer */
+	irq_set_chip_and_handler(M32R_IRQ_MFT2, &oaks32r_irq_type,
+				 handle_level_irq);
+	icu_data[M32R_IRQ_MFT2].icucr = M32R_ICUCR_IEN;
+	disable_oaks32r_irq(M32R_IRQ_MFT2);
+
+#ifdef CONFIG_SERIAL_M32R_SIO
+	/* SIO0_R : uart receive data */
+	irq_set_chip_and_handler(M32R_IRQ_SIO0_R, &oaks32r_irq_type,
+				 handle_level_irq);
+	icu_data[M32R_IRQ_SIO0_R].icucr = 0;
+	disable_oaks32r_irq(M32R_IRQ_SIO0_R);
+
+	/* SIO0_S : uart send data */
+	irq_set_chip_and_handler(M32R_IRQ_SIO0_S, &oaks32r_irq_type,
+				 handle_level_irq);
+	icu_data[M32R_IRQ_SIO0_S].icucr = 0;
+	disable_oaks32r_irq(M32R_IRQ_SIO0_S);
+
+	/* SIO1_R : uart receive data */
+	irq_set_chip_and_handler(M32R_IRQ_SIO1_R, &oaks32r_irq_type,
+				 handle_level_irq);
+	icu_data[M32R_IRQ_SIO1_R].icucr = 0;
+	disable_oaks32r_irq(M32R_IRQ_SIO1_R);
+
+	/* SIO1_S : uart send data */
+	irq_set_chip_and_handler(M32R_IRQ_SIO1_S, &oaks32r_irq_type,
+				 handle_level_irq);
+	icu_data[M32R_IRQ_SIO1_S].icucr = 0;
+	disable_oaks32r_irq(M32R_IRQ_SIO1_S);
+#endif /* CONFIG_SERIAL_M32R_SIO */
+}