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, 135 insertions, 0 deletions

diff --git a/kernel/arch/m68k/coldfire/m5272.c b/kernel/arch/m68k/coldfire/m5272.c
new file mode 100644
index 000000000..b15219ed2
--- /dev/null
+++ b/kernel/arch/m68k/coldfire/m5272.c
@@ -0,0 +1,135 @@
+/***************************************************************************/
+
+/*
+ *	m5272.c  -- platform support for ColdFire 5272 based boards
+ *
+ *	Copyright (C) 1999-2002, Greg Ungerer (gerg@snapgear.com)
+ *	Copyright (C) 2001-2002, SnapGear Inc. (www.snapgear.com)
+ */
+
+/***************************************************************************/
+
+#include <linux/kernel.h>
+#include <linux/param.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/phy.h>
+#include <linux/phy_fixed.h>
+#include <asm/machdep.h>
+#include <asm/coldfire.h>
+#include <asm/mcfsim.h>
+#include <asm/mcfuart.h>
+#include <asm/mcfclk.h>
+
+/***************************************************************************/
+
+/*
+ *	Some platforms need software versions of the GPIO data registers.
+ */
+unsigned short ppdata;
+unsigned char ledbank = 0xff;
+
+/***************************************************************************/
+
+DEFINE_CLK(pll, "pll.0", MCF_CLK);
+DEFINE_CLK(sys, "sys.0", MCF_BUSCLK);
+DEFINE_CLK(mcftmr0, "mcftmr.0", MCF_BUSCLK);
+DEFINE_CLK(mcftmr1, "mcftmr.1", MCF_BUSCLK);
+DEFINE_CLK(mcftmr2, "mcftmr.2", MCF_BUSCLK);
+DEFINE_CLK(mcftmr3, "mcftmr.3", MCF_BUSCLK);
+DEFINE_CLK(mcfuart0, "mcfuart.0", MCF_BUSCLK);
+DEFINE_CLK(mcfuart1, "mcfuart.1", MCF_BUSCLK);
+DEFINE_CLK(mcfqspi0, "mcfqspi.0", MCF_BUSCLK);
+DEFINE_CLK(fec0, "fec.0", MCF_BUSCLK);
+
+struct clk *mcf_clks[] = {
+	&clk_pll,
+	&clk_sys,
+	&clk_mcftmr0,
+	&clk_mcftmr1,
+	&clk_mcftmr2,
+	&clk_mcftmr3,
+	&clk_mcfuart0,
+	&clk_mcfuart1,
+	&clk_mcfqspi0,
+	&clk_fec0,
+	NULL
+};
+
+/***************************************************************************/
+
+static void __init m5272_uarts_init(void)
+{
+	u32 v;
+
+	/* Enable the output lines for the serial ports */
+	v = readl(MCFSIM_PBCNT);
+	v = (v & ~0x000000ff) | 0x00000055;
+	writel(v, MCFSIM_PBCNT);
+
+	v = readl(MCFSIM_PDCNT);
+	v = (v & ~0x000003fc) | 0x000002a8;
+	writel(v, MCFSIM_PDCNT);
+}
+
+/***************************************************************************/
+
+static void m5272_cpu_reset(void)
+{
+	local_irq_disable();
+	/* Set watchdog to reset, and enabled */
+	__raw_writew(0, MCFSIM_WIRR);
+	__raw_writew(1, MCFSIM_WRRR);
+	__raw_writew(0, MCFSIM_WCR);
+	for (;;)
+		/* wait for watchdog to timeout */;
+}
+
+/***************************************************************************/
+
+void __init config_BSP(char *commandp, int size)
+{
+#if defined (CONFIG_MOD5272)
+	/* Set base of device vectors to be 64 */
+	writeb(0x40, MCFSIM_PIVR);
+#endif
+
+#if defined(CONFIG_NETtel) || defined(CONFIG_SCALES)
+	/* Copy command line from FLASH to local buffer... */
+	memcpy(commandp, (char *) 0xf0004000, size);
+	commandp[size-1] = 0;
+#elif defined(CONFIG_CANCam)
+	/* Copy command line from FLASH to local buffer... */
+	memcpy(commandp, (char *) 0xf0010000, size);
+	commandp[size-1] = 0;
+#endif
+
+	mach_reset = m5272_cpu_reset;
+	mach_sched_init = hw_timer_init;
+}
+
+/***************************************************************************/
+
+/*
+ * Some 5272 based boards have the FEC ethernet diectly connected to
+ * an ethernet switch. In this case we need to use the fixed phy type,
+ * and we need to declare it early in boot.
+ */
+static struct fixed_phy_status nettel_fixed_phy_status __initdata = {
+	.link	= 1,
+	.speed	= 100,
+	.duplex	= 0,
+};
+
+/***************************************************************************/
+
+static int __init init_BSP(void)
+{
+	m5272_uarts_init();
+	fixed_phy_add(PHY_POLL, 0, &nettel_fixed_phy_status);
+	return 0;
+}
+
+arch_initcall(init_BSP);
+
+/***************************************************************************/