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, 56 insertions, 0 deletions

diff --git a/kernel/arch/arm/mach-ixp4xx/include/mach/uncompress.h b/kernel/arch/arm/mach-ixp4xx/include/mach/uncompress.h
new file mode 100644
index 000000000..7b25c0225
--- /dev/null
+++ b/kernel/arch/arm/mach-ixp4xx/include/mach/uncompress.h
@@ -0,0 +1,56 @@
+/*
+ * arch/arm/mach-ixp4xx/include/mach/uncompress.h 
+ *
+ * Copyright (C) 2002 Intel Corporation.
+ * Copyright (C) 2003-2004 MontaVista Software, Inc.
+ *
+ * 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.
+ *
+ */
+
+#ifndef _ARCH_UNCOMPRESS_H_
+#define _ARCH_UNCOMPRESS_H_
+
+#include "ixp4xx-regs.h"
+#include <asm/mach-types.h>
+#include <linux/serial_reg.h>
+
+#define TX_DONE (UART_LSR_TEMT|UART_LSR_THRE)
+
+volatile u32* uart_base;
+
+static inline void putc(int c)
+{
+	/* Check THRE and TEMT bits before we transmit the character.
+	 */
+	while ((uart_base[UART_LSR] & TX_DONE) != TX_DONE)
+		barrier();
+
+	*uart_base = c;
+}
+
+static void flush(void)
+{
+}
+
+static __inline__ void __arch_decomp_setup(unsigned long arch_id)
+{
+	/*
+	 * Some boards are using UART2 as console
+	 */
+	if (machine_is_adi_coyote() || machine_is_gtwx5715() ||
+	    machine_is_gateway7001() || machine_is_wg302v2() ||
+	    machine_is_devixp() || machine_is_miccpt() || machine_is_mic256())
+		uart_base = (volatile u32*) IXP4XX_UART2_BASE_PHYS;
+	else
+		uart_base = (volatile u32*) IXP4XX_UART1_BASE_PHYS;
+}
+
+/*
+ * arch_id is a variable in decompress_kernel()
+ */
+#define arch_decomp_setup()	__arch_decomp_setup(arch_id)
+
+#endif