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, 48 insertions, 0 deletions

diff --git a/kernel/arch/mips/include/asm/mach-bcm63xx/ioremap.h b/kernel/arch/mips/include/asm/mach-bcm63xx/ioremap.h
new file mode 100644
index 000000000..aea6e64b8
--- /dev/null
+++ b/kernel/arch/mips/include/asm/mach-bcm63xx/ioremap.h
@@ -0,0 +1,48 @@
+#ifndef BCM63XX_IOREMAP_H_
+#define BCM63XX_IOREMAP_H_
+
+#include <bcm63xx_cpu.h>
+
+static inline phys_addr_t fixup_bigphys_addr(phys_addr_t phys_addr, phys_addr_t size)
+{
+	return phys_addr;
+}
+
+static inline int is_bcm63xx_internal_registers(phys_addr_t offset)
+{
+	switch (bcm63xx_get_cpu_id()) {
+	case BCM3368_CPU_ID:
+		if (offset >= 0xfff80000)
+			return 1;
+		break;
+	case BCM6338_CPU_ID:
+	case BCM6345_CPU_ID:
+	case BCM6348_CPU_ID:
+	case BCM6358_CPU_ID:
+		if (offset >= 0xfff00000)
+			return 1;
+		break;
+	case BCM6328_CPU_ID:
+	case BCM6362_CPU_ID:
+	case BCM6368_CPU_ID:
+		if (offset >= 0xb0000000 && offset < 0xb1000000)
+			return 1;
+		break;
+	}
+	return 0;
+}
+
+static inline void __iomem *plat_ioremap(phys_addr_t offset, unsigned long size,
+					 unsigned long flags)
+{
+	if (is_bcm63xx_internal_registers(offset))
+		return (void __iomem *)offset;
+	return NULL;
+}
+
+static inline int plat_iounmap(const volatile void __iomem *addr)
+{
+	return is_bcm63xx_internal_registers((unsigned long)addr);
+}
+
+#endif /* BCM63XX_IOREMAP_H_ */