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, 86 insertions, 0 deletions

diff --git a/kernel/arch/arm/mach-orion5x/common.h b/kernel/arch/arm/mach-orion5x/common.h
new file mode 100644
index 000000000..cd0389c6e
--- /dev/null
+++ b/kernel/arch/arm/mach-orion5x/common.h
@@ -0,0 +1,86 @@
+#ifndef __ARCH_ORION5X_COMMON_H
+#define __ARCH_ORION5X_COMMON_H
+
+#include <linux/reboot.h>
+
+struct dsa_platform_data;
+struct mv643xx_eth_platform_data;
+struct mv_sata_platform_data;
+
+#define ORION_MBUS_PCIE_MEM_TARGET    0x04
+#define ORION_MBUS_PCIE_MEM_ATTR      0x59
+#define ORION_MBUS_PCIE_IO_TARGET     0x04
+#define ORION_MBUS_PCIE_IO_ATTR       0x51
+#define ORION_MBUS_PCIE_WA_TARGET     0x04
+#define ORION_MBUS_PCIE_WA_ATTR       0x79
+#define ORION_MBUS_PCI_MEM_TARGET     0x03
+#define ORION_MBUS_PCI_MEM_ATTR       0x59
+#define ORION_MBUS_PCI_IO_TARGET      0x03
+#define ORION_MBUS_PCI_IO_ATTR        0x51
+#define ORION_MBUS_DEVBUS_BOOT_TARGET 0x01
+#define ORION_MBUS_DEVBUS_BOOT_ATTR   0x0f
+#define ORION_MBUS_DEVBUS_TARGET(cs)  0x01
+#define ORION_MBUS_DEVBUS_ATTR(cs)    (~(1 << cs))
+#define ORION_MBUS_SRAM_TARGET        0x09
+#define ORION_MBUS_SRAM_ATTR          0x00
+
+/*
+ * Basic Orion init functions used early by machine-setup.
+ */
+void orion5x_map_io(void);
+void orion5x_init_early(void);
+void orion5x_init_irq(void);
+void orion5x_init(void);
+void orion5x_id(u32 *dev, u32 *rev, char **dev_name);
+void clk_init(void);
+extern int orion5x_tclk;
+extern void orion5x_timer_init(void);
+
+void orion5x_setup_wins(void);
+
+void orion5x_ehci0_init(void);
+void orion5x_ehci1_init(void);
+void orion5x_eth_init(struct mv643xx_eth_platform_data *eth_data);
+void orion5x_eth_switch_init(struct dsa_platform_data *d, int irq);
+void orion5x_i2c_init(void);
+void orion5x_sata_init(struct mv_sata_platform_data *sata_data);
+void orion5x_spi_init(void);
+void orion5x_uart0_init(void);
+void orion5x_uart1_init(void);
+void orion5x_xor_init(void);
+void orion5x_restart(enum reboot_mode, const char *);
+
+/*
+ * PCIe/PCI functions.
+ */
+struct pci_bus;
+struct pci_sys_data;
+struct pci_dev;
+
+void orion5x_pcie_id(u32 *dev, u32 *rev);
+void orion5x_pci_disable(void);
+void orion5x_pci_set_cardbus_mode(void);
+int orion5x_pci_sys_setup(int nr, struct pci_sys_data *sys);
+struct pci_bus *orion5x_pci_sys_scan_bus(int nr, struct pci_sys_data *sys);
+int orion5x_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin);
+
+struct tag;
+extern void __init tag_fixup_mem32(struct tag *, char **);
+
+#ifdef CONFIG_MACH_MSS2_DT
+extern void mss2_init(void);
+#else
+static inline void mss2_init(void) {}
+#endif
+
+/*****************************************************************************
+ * Helpers to access Orion registers
+ ****************************************************************************/
+/*
+ * These are not preempt-safe.  Locks, if needed, must be taken
+ * care of by the caller.
+ */
+#define orion5x_setbits(r, mask)	writel(readl(r) | (mask), (r))
+#define orion5x_clrbits(r, mask)	writel(readl(r) & ~(mask), (r))
+
+#endif