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, 413 insertions, 0 deletions

diff --git a/kernel/arch/blackfin/mach-bf537/boards/dnp5370.c b/kernel/arch/blackfin/mach-bf537/boards/dnp5370.c
new file mode 100644
index 000000000..e79b3b810
--- /dev/null
+++ b/kernel/arch/blackfin/mach-bf537/boards/dnp5370.c
@@ -0,0 +1,413 @@
+/*
+ * This is the configuration for SSV Dil/NetPC DNP/5370 board.
+ *
+ * DIL module:         http://www.dilnetpc.com/dnp0086.htm
+ * SK28 (starter kit): http://www.dilnetpc.com/dnp0088.htm
+ *
+ * Copyright 2010 3ality Digital Systems
+ * Copyright 2005 National ICT Australia (NICTA)
+ * Copyright 2004-2006 Analog Devices Inc.
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#include <linux/device.h>
+#include <linux/export.h>
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <linux/io.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/nand.h>
+#include <linux/mtd/partitions.h>
+#include <linux/mtd/plat-ram.h>
+#include <linux/mtd/physmap.h>
+#include <linux/spi/spi.h>
+#include <linux/spi/flash.h>
+#include <linux/irq.h>
+#include <linux/interrupt.h>
+#include <linux/i2c.h>
+#include <linux/spi/mmc_spi.h>
+#include <linux/phy.h>
+#include <asm/dma.h>
+#include <asm/bfin5xx_spi.h>
+#include <asm/reboot.h>
+#include <asm/portmux.h>
+#include <asm/dpmc.h>
+
+/*
+ * Name the Board for the /proc/cpuinfo
+ */
+const char bfin_board_name[] = "DNP/5370";
+#define FLASH_MAC               0x202f0000
+#define CONFIG_MTD_PHYSMAP_LEN  0x300000
+
+#if IS_ENABLED(CONFIG_RTC_DRV_BFIN)
+static struct platform_device rtc_device = {
+	.name = "rtc-bfin",
+	.id   = -1,
+};
+#endif
+
+#if IS_ENABLED(CONFIG_BFIN_MAC)
+#include <linux/bfin_mac.h>
+static const unsigned short bfin_mac_peripherals[] = P_RMII0;
+
+static struct bfin_phydev_platform_data bfin_phydev_data[] = {
+	{
+		.addr = 1,
+		.irq = PHY_POLL, /* IRQ_MAC_PHYINT */
+	},
+};
+
+static struct bfin_mii_bus_platform_data bfin_mii_bus_data = {
+	.phydev_number   = 1,
+	.phydev_data     = bfin_phydev_data,
+	.phy_mode        = PHY_INTERFACE_MODE_RMII,
+	.mac_peripherals = bfin_mac_peripherals,
+};
+
+static struct platform_device bfin_mii_bus = {
+	.name = "bfin_mii_bus",
+	.dev = {
+		.platform_data = &bfin_mii_bus_data,
+	}
+};
+
+static struct platform_device bfin_mac_device = {
+	.name = "bfin_mac",
+	.dev = {
+		.platform_data = &bfin_mii_bus,
+	}
+};
+#endif
+
+#if IS_ENABLED(CONFIG_MTD_PHYSMAP)
+static struct mtd_partition asmb_flash_partitions[] = {
+	{
+		.name       = "bootloader(nor)",
+		.size       = 0x30000,
+		.offset     = 0,
+	}, {
+		.name       = "linux kernel and rootfs(nor)",
+		.size       = 0x300000 - 0x30000 - 0x10000,
+		.offset     = MTDPART_OFS_APPEND,
+	}, {
+		.name       = "MAC address(nor)",
+		.size       = 0x10000,
+		.offset     = MTDPART_OFS_APPEND,
+		.mask_flags = MTD_WRITEABLE,
+	}
+};
+
+static struct physmap_flash_data asmb_flash_data = {
+	.width      = 1,
+	.parts      = asmb_flash_partitions,
+	.nr_parts   = ARRAY_SIZE(asmb_flash_partitions),
+};
+
+static struct resource asmb_flash_resource = {
+	.start = 0x20000000,
+	.end   = 0x202fffff,
+	.flags = IORESOURCE_MEM,
+};
+
+/* 4 MB NOR flash attached to async memory banks 0-2,
+ * therefore only 3 MB visible.
+ */
+static struct platform_device asmb_flash_device = {
+	.name	  = "physmap-flash",
+	.id	  = 0,
+	.dev = {
+		.platform_data = &asmb_flash_data,
+	},
+	.num_resources = 1,
+	.resource      = &asmb_flash_resource,
+};
+#endif
+
+#if IS_ENABLED(CONFIG_SPI_BFIN5XX)
+
+#if IS_ENABLED(CONFIG_MMC_SPI)
+
+static struct bfin5xx_spi_chip mmc_spi_chip_info = {
+	.enable_dma    = 0,	 /* use no dma transfer with this chip*/
+};
+
+#endif
+
+#if IS_ENABLED(CONFIG_MTD_DATAFLASH)
+/* This mapping is for at45db642 it has 1056 page size,
+ * partition size and offset should be page aligned
+ */
+static struct mtd_partition bfin_spi_dataflash_partitions[] = {
+	{
+		.name   = "JFFS2 dataflash(nor)",
+#ifdef CONFIG_MTD_PAGESIZE_1024
+		.offset = 0x40000,
+		.size   = 0x7C0000,
+#else
+		.offset = 0x0,
+		.size   = 0x840000,
+#endif
+	}
+};
+
+static struct flash_platform_data bfin_spi_dataflash_data = {
+	.name     = "mtd_dataflash",
+	.parts    = bfin_spi_dataflash_partitions,
+	.nr_parts = ARRAY_SIZE(bfin_spi_dataflash_partitions),
+	.type     = "mtd_dataflash",
+};
+
+static struct bfin5xx_spi_chip spi_dataflash_chip_info = {
+	.enable_dma    = 0,	 /* use no dma transfer with this chip*/
+};
+#endif
+
+static struct spi_board_info bfin_spi_board_info[] __initdata = {
+/* SD/MMC card reader at SPI bus */
+#if IS_ENABLED(CONFIG_MMC_SPI)
+	{
+		.modalias	 = "mmc_spi",
+		.max_speed_hz    = 20000000,
+		.bus_num	 = 0,
+		.chip_select     = 1,
+		.controller_data = &mmc_spi_chip_info,
+		.mode	         = SPI_MODE_3,
+	},
+#endif
+
+/* 8 Megabyte Atmel NOR flash chip at SPI bus */
+#if IS_ENABLED(CONFIG_MTD_DATAFLASH)
+	{
+	.modalias        = "mtd_dataflash",
+	.max_speed_hz    = 16700000,
+	.bus_num         = 0,
+	.chip_select     = 2,
+	.platform_data   = &bfin_spi_dataflash_data,
+	.controller_data = &spi_dataflash_chip_info,
+	.mode            = SPI_MODE_3, /* SPI_CPHA and SPI_CPOL */
+	},
+#endif
+};
+
+/* SPI controller data */
+/* SPI (0) */
+static struct resource bfin_spi0_resource[] = {
+	[0] = {
+		.start = SPI0_REGBASE,
+		.end   = SPI0_REGBASE + 0xFF,
+		.flags = IORESOURCE_MEM,
+	},
+	[1] = {
+		.start = CH_SPI,
+		.end   = CH_SPI,
+		.flags = IORESOURCE_DMA,
+	},
+	[2] = {
+		.start = IRQ_SPI,
+		.end   = IRQ_SPI,
+		.flags = IORESOURCE_IRQ,
+	},
+};
+
+static struct bfin5xx_spi_master spi_bfin_master_info = {
+	.num_chipselect = 8,
+	.enable_dma     = 1,  /* master has the ability to do dma transfer */
+	.pin_req        = {P_SPI0_SCK, P_SPI0_MISO, P_SPI0_MOSI, 0},
+};
+
+static struct platform_device spi_bfin_master_device = {
+	.name          = "bfin-spi",
+	.id            = 0, /* Bus number */
+	.num_resources = ARRAY_SIZE(bfin_spi0_resource),
+	.resource      = bfin_spi0_resource,
+	.dev           = {
+		.platform_data = &spi_bfin_master_info, /* Passed to driver */
+	},
+};
+#endif
+
+#if IS_ENABLED(CONFIG_SERIAL_BFIN)
+#ifdef CONFIG_SERIAL_BFIN_UART0
+static struct resource bfin_uart0_resources[] = {
+	{
+		.start = UART0_THR,
+		.end = UART0_GCTL+2,
+		.flags = IORESOURCE_MEM,
+	},
+	{
+		.start = IRQ_UART0_TX,
+		.end = IRQ_UART0_TX,
+		.flags = IORESOURCE_IRQ,
+	},
+	{
+		.start = IRQ_UART0_RX,
+		.end = IRQ_UART0_RX,
+		.flags = IORESOURCE_IRQ,
+	},
+	{
+		.start = IRQ_UART0_ERROR,
+		.end = IRQ_UART0_ERROR,
+		.flags = IORESOURCE_IRQ,
+	},
+	{
+		.start = CH_UART0_TX,
+		.end = CH_UART0_TX,
+		.flags = IORESOURCE_DMA,
+	},
+	{
+		.start = CH_UART0_RX,
+		.end = CH_UART0_RX,
+		.flags = IORESOURCE_DMA,
+	},
+};
+
+static unsigned short bfin_uart0_peripherals[] = {
+	P_UART0_TX, P_UART0_RX, 0
+};
+
+static struct platform_device bfin_uart0_device = {
+	.name = "bfin-uart",
+	.id = 0,
+	.num_resources = ARRAY_SIZE(bfin_uart0_resources),
+	.resource = bfin_uart0_resources,
+	.dev = {
+		.platform_data = &bfin_uart0_peripherals, /* Passed to driver */
+	},
+};
+#endif
+
+#ifdef CONFIG_SERIAL_BFIN_UART1
+static struct resource bfin_uart1_resources[] = {
+	{
+		.start = UART1_THR,
+		.end   = UART1_GCTL+2,
+		.flags = IORESOURCE_MEM,
+	},
+	{
+		.start = IRQ_UART1_TX,
+		.end   = IRQ_UART1_TX,
+		.flags = IORESOURCE_IRQ,
+	},
+	{
+		.start = IRQ_UART1_RX,
+		.end   = IRQ_UART1_RX,
+		.flags = IORESOURCE_IRQ,
+	},
+	{
+		.start = IRQ_UART1_ERROR,
+		.end   = IRQ_UART1_ERROR,
+		.flags = IORESOURCE_IRQ,
+	},
+	{
+		.start = CH_UART1_TX,
+		.end   = CH_UART1_TX,
+		.flags = IORESOURCE_DMA,
+	},
+	{
+		.start = CH_UART1_RX,
+		.end   = CH_UART1_RX,
+		.flags = IORESOURCE_DMA,
+	},
+};
+
+static unsigned short bfin_uart1_peripherals[] = {
+	P_UART1_TX, P_UART1_RX, 0
+};
+
+static struct platform_device bfin_uart1_device = {
+	.name          = "bfin-uart",
+	.id            = 1,
+	.num_resources = ARRAY_SIZE(bfin_uart1_resources),
+	.resource      = bfin_uart1_resources,
+	.dev = {
+		.platform_data = &bfin_uart1_peripherals, /* Passed to driver */
+	},
+};
+#endif
+#endif
+
+#if IS_ENABLED(CONFIG_I2C_BLACKFIN_TWI)
+static const u16 bfin_twi0_pins[] = {P_TWI0_SCL, P_TWI0_SDA, 0};
+
+static struct resource bfin_twi0_resource[] = {
+	[0] = {
+		.start = TWI0_REGBASE,
+		.end   = TWI0_REGBASE + 0xff,
+		.flags = IORESOURCE_MEM,
+	},
+	[1] = {
+		.start = IRQ_TWI,
+		.end   = IRQ_TWI,
+		.flags = IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device i2c_bfin_twi_device = {
+	.name          = "i2c-bfin-twi",
+	.id            = 0,
+	.num_resources = ARRAY_SIZE(bfin_twi0_resource),
+	.resource      = bfin_twi0_resource,
+	.dev = {
+		.platform_data = &bfin_twi0_pins,
+	},
+};
+#endif
+
+static struct platform_device *dnp5370_devices[] __initdata = {
+
+#if IS_ENABLED(CONFIG_SERIAL_BFIN)
+#ifdef CONFIG_SERIAL_BFIN_UART0
+	&bfin_uart0_device,
+#endif
+#ifdef CONFIG_SERIAL_BFIN_UART1
+	&bfin_uart1_device,
+#endif
+#endif
+
+#if IS_ENABLED(CONFIG_MTD_PHYSMAP)
+	&asmb_flash_device,
+#endif
+
+#if IS_ENABLED(CONFIG_BFIN_MAC)
+	&bfin_mii_bus,
+	&bfin_mac_device,
+#endif
+
+#if IS_ENABLED(CONFIG_SPI_BFIN5XX)
+	&spi_bfin_master_device,
+#endif
+
+#if IS_ENABLED(CONFIG_I2C_BLACKFIN_TWI)
+	&i2c_bfin_twi_device,
+#endif
+
+#if IS_ENABLED(CONFIG_RTC_DRV_BFIN)
+	&rtc_device,
+#endif
+
+};
+
+static int __init dnp5370_init(void)
+{
+	printk(KERN_INFO "DNP/5370: registering device resources\n");
+	platform_add_devices(dnp5370_devices, ARRAY_SIZE(dnp5370_devices));
+	printk(KERN_INFO "DNP/5370: registering %zu SPI slave devices\n",
+	       ARRAY_SIZE(bfin_spi_board_info));
+	spi_register_board_info(bfin_spi_board_info, ARRAY_SIZE(bfin_spi_board_info));
+	printk(KERN_INFO "DNP/5370: MAC %pM\n", (void *)FLASH_MAC);
+	return 0;
+}
+arch_initcall(dnp5370_init);
+
+/*
+ * Currently the MAC address is saved in Flash by U-Boot
+ */
+int bfin_get_ether_addr(char *addr)
+{
+	*(u32 *)(&(addr[0])) = bfin_read32(FLASH_MAC);
+	*(u16 *)(&(addr[4])) = bfin_read16(FLASH_MAC + 4);
+	return 0;
+}
+EXPORT_SYMBOL(bfin_get_ether_addr);