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, 126 insertions, 0 deletions

diff --git a/kernel/arch/m68k/coldfire/m5249.c b/kernel/arch/m68k/coldfire/m5249.c
new file mode 100644
index 000000000..e48f55adc
--- /dev/null
+++ b/kernel/arch/m68k/coldfire/m5249.c
@@ -0,0 +1,126 @@
+/***************************************************************************/
+
+/*
+ *	m5249.c  -- platform support for ColdFire 5249 based boards
+ *
+ *	Copyright (C) 2002, Greg Ungerer (gerg@snapgear.com)
+ */
+
+/***************************************************************************/
+
+#include <linux/kernel.h>
+#include <linux/param.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/platform_device.h>
+#include <asm/machdep.h>
+#include <asm/coldfire.h>
+#include <asm/mcfsim.h>
+#include <asm/mcfclk.h>
+
+/***************************************************************************/
+
+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(mcfuart0, "mcfuart.0", MCF_BUSCLK);
+DEFINE_CLK(mcfuart1, "mcfuart.1", MCF_BUSCLK);
+DEFINE_CLK(mcfqspi0, "mcfqspi.0", MCF_BUSCLK);
+
+struct clk *mcf_clks[] = {
+	&clk_pll,
+	&clk_sys,
+	&clk_mcftmr0,
+	&clk_mcftmr1,
+	&clk_mcfuart0,
+	&clk_mcfuart1,
+	&clk_mcfqspi0,
+	NULL
+};
+
+/***************************************************************************/
+
+#ifdef CONFIG_M5249C3
+
+static struct resource m5249_smc91x_resources[] = {
+	{
+		.start		= 0xe0000300,
+		.end		= 0xe0000300 + 0x100,
+		.flags		= IORESOURCE_MEM,
+	},
+	{
+		.start		= MCF_IRQ_GPIO6,
+		.end		= MCF_IRQ_GPIO6,
+		.flags		= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device m5249_smc91x = {
+	.name			= "smc91x",
+	.id			= 0,
+	.num_resources		= ARRAY_SIZE(m5249_smc91x_resources),
+	.resource		= m5249_smc91x_resources,
+};
+
+#endif /* CONFIG_M5249C3 */
+
+static struct platform_device *m5249_devices[] __initdata = {
+#ifdef CONFIG_M5249C3
+	&m5249_smc91x,
+#endif
+};
+
+/***************************************************************************/
+
+static void __init m5249_qspi_init(void)
+{
+#if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI)
+	/* QSPI irq setup */
+	writeb(MCFSIM_ICR_AUTOVEC | MCFSIM_ICR_LEVEL4 | MCFSIM_ICR_PRI0,
+	       MCFSIM_QSPIICR);
+	mcf_mapirq2imr(MCF_IRQ_QSPI, MCFINTC_QSPI);
+#endif /* IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) */
+}
+
+/***************************************************************************/
+
+#ifdef CONFIG_M5249C3
+
+static void __init m5249_smc91x_init(void)
+{
+	u32  gpio;
+
+	/* Set the GPIO line as interrupt source for smc91x device */
+	gpio = readl(MCFSIM2_GPIOINTENABLE);
+	writel(gpio | 0x40, MCFSIM2_GPIOINTENABLE);
+
+	gpio = readl(MCFINTC2_INTPRI5);
+	writel(gpio | 0x04000000, MCFINTC2_INTPRI5);
+}
+
+#endif /* CONFIG_M5249C3 */
+
+/***************************************************************************/
+
+void __init config_BSP(char *commandp, int size)
+{
+	mach_sched_init = hw_timer_init;
+
+#ifdef CONFIG_M5249C3
+	m5249_smc91x_init();
+#endif
+	m5249_qspi_init();
+}
+
+/***************************************************************************/
+
+static int __init init_BSP(void)
+{
+	platform_add_devices(m5249_devices, ARRAY_SIZE(m5249_devices));
+	return 0;
+}
+
+arch_initcall(init_BSP);
+
+/***************************************************************************/