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, 543 insertions, 0 deletions

diff --git a/kernel/arch/blackfin/mach-bf561/boards/acvilon.c b/kernel/arch/blackfin/mach-bf561/boards/acvilon.c
new file mode 100644
index 000000000..6ab951534
--- /dev/null
+++ b/kernel/arch/blackfin/mach-bf561/boards/acvilon.c
@@ -0,0 +1,543 @@
+/*
+ * File:         arch/blackfin/mach-bf561/acvilon.c
+ * Based on:     arch/blackfin/mach-bf561/ezkit.c
+ * Author:
+ *
+ * Created:
+ * Description:
+ *
+ * Modified:
+ *               Copyright 2004-2006 Analog Devices Inc.
+ *               Copyright 2009 CJSC "NII STT"
+ *
+ * Bugs:
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see the file COPYING, or write
+ * to the Free Software Foundation, Inc.,
+ * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ *
+ * For more information about Acvilon BF561 SoM please
+ * go to http://www.niistt.ru/
+ *
+ */
+
+#include <linux/device.h>
+#include <linux/platform_device.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/mtd/physmap.h>
+#include <linux/mtd/nand.h>
+#include <linux/mtd/plat-ram.h>
+#include <linux/spi/spi.h>
+#include <linux/spi/flash.h>
+#include <linux/irq.h>
+#include <linux/interrupt.h>
+#include <linux/gpio.h>
+#include <linux/jiffies.h>
+#include <linux/i2c-pca-platform.h>
+#include <linux/delay.h>
+#include <linux/io.h>
+#include <asm/dma.h>
+#include <asm/bfin5xx_spi.h>
+#include <asm/portmux.h>
+#include <asm/dpmc.h>
+#include <asm/cacheflush.h>
+#include <linux/i2c.h>
+
+/*
+ * Name the Board for the /proc/cpuinfo
+ */
+const char bfin_board_name[] = "Acvilon board";
+
+#if IS_ENABLED(CONFIG_USB_ISP1760_HCD)
+#include <linux/usb/isp1760.h>
+static struct resource bfin_isp1760_resources[] = {
+	[0] = {
+	       .start = 0x20000000,
+	       .end = 0x20000000 + 0x000fffff,
+	       .flags = IORESOURCE_MEM,
+	       },
+	[1] = {
+	       .start = IRQ_PF15,
+	       .end = IRQ_PF15,
+	       .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
+	       },
+};
+
+static struct isp1760_platform_data isp1760_priv = {
+	.is_isp1761 = 0,
+	.port1_disable = 0,
+	.bus_width_16 = 1,
+	.port1_otg = 0,
+	.analog_oc = 0,
+	.dack_polarity_high = 0,
+	.dreq_polarity_high = 0,
+};
+
+static struct platform_device bfin_isp1760_device = {
+	.name = "isp1760-hcd",
+	.id = 0,
+	.dev = {
+		.platform_data = &isp1760_priv,
+		},
+	.num_resources = ARRAY_SIZE(bfin_isp1760_resources),
+	.resource = bfin_isp1760_resources,
+};
+#endif
+
+static struct resource bfin_i2c_pca_resources[] = {
+	{
+	 .name = "pca9564-regs",
+	 .start = 0x2C000000,
+	 .end = 0x2C000000 + 16,
+	 .flags = IORESOURCE_MEM | IORESOURCE_MEM_32BIT,
+	 }, {
+
+	     .start = IRQ_PF8,
+	     .end = IRQ_PF8,
+	     .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
+	     },
+};
+
+struct i2c_pca9564_pf_platform_data pca9564_platform_data = {
+	.gpio = -1,
+	.i2c_clock_speed = 330000,
+	.timeout = HZ,
+};
+
+/* PCA9564 I2C Bus driver */
+static struct platform_device bfin_i2c_pca_device = {
+	.name = "i2c-pca-platform",
+	.id = 0,
+	.num_resources = ARRAY_SIZE(bfin_i2c_pca_resources),
+	.resource = bfin_i2c_pca_resources,
+	.dev = {
+		.platform_data = &pca9564_platform_data,
+		}
+};
+
+/* I2C devices fitted. */
+static struct i2c_board_info acvilon_i2c_devs[] __initdata = {
+	{
+	 I2C_BOARD_INFO("ds1339", 0x68),
+	 },
+	{
+	 I2C_BOARD_INFO("tcn75", 0x49),
+	 },
+};
+
+#if IS_ENABLED(CONFIG_MTD_PLATRAM)
+static struct platdata_mtd_ram mtd_ram_data = {
+	.mapname = "rootfs(RAM)",
+	.bankwidth = 4,
+};
+
+static struct resource mtd_ram_resource = {
+	.start = 0x4000000,
+	.end = 0x5ffffff,
+	.flags = IORESOURCE_MEM,
+};
+
+static struct platform_device mtd_ram_device = {
+	.name = "mtd-ram",
+	.id = 0,
+	.dev = {
+		.platform_data = &mtd_ram_data,
+		},
+	.num_resources = 1,
+	.resource = &mtd_ram_resource,
+};
+#endif
+
+#if IS_ENABLED(CONFIG_SMSC911X)
+#include <linux/smsc911x.h>
+static struct resource smsc911x_resources[] = {
+	{
+	 .name = "smsc911x-memory",
+	 .start = 0x28000000,
+	 .end = 0x28000000 + 0xFF,
+	 .flags = IORESOURCE_MEM,
+	 },
+	{
+	 .start = IRQ_PF7,
+	 .end = IRQ_PF7,
+	 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
+	 },
+};
+
+static struct smsc911x_platform_config smsc911x_config = {
+	.flags = SMSC911X_USE_32BIT | SMSC911X_SAVE_MAC_ADDRESS,
+	.irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
+	.irq_type = SMSC911X_IRQ_TYPE_OPEN_DRAIN,
+	.phy_interface = PHY_INTERFACE_MODE_MII,
+};
+
+static struct platform_device smsc911x_device = {
+	.name = "smsc911x",
+	.id = 0,
+	.num_resources = ARRAY_SIZE(smsc911x_resources),
+	.resource = smsc911x_resources,
+	.dev = {
+		.platform_data = &smsc911x_config,
+		},
+};
+#endif
+
+#if IS_ENABLED(CONFIG_SERIAL_BFIN)
+#ifdef CONFIG_SERIAL_BFIN_UART0
+static struct resource bfin_uart0_resources[] = {
+	{
+	 .start = BFIN_UART_THR,
+	 .end = BFIN_UART_GCTL + 2,
+	 .flags = IORESOURCE_MEM,
+	 },
+	{
+	 .start = IRQ_UART_TX,
+	 .end = IRQ_UART_TX,
+	 .flags = IORESOURCE_IRQ,
+	 },
+	{
+	 .start = IRQ_UART_RX,
+	 .end = IRQ_UART_RX,
+	 .flags = IORESOURCE_IRQ,
+	 },
+	{
+	 .start = IRQ_UART_ERROR,
+	 .end = IRQ_UART_ERROR,
+	 .flags = IORESOURCE_IRQ,
+	 },
+	{
+	 .start = CH_UART_TX,
+	 .end = CH_UART_TX,
+	 .flags = IORESOURCE_DMA,
+	 },
+	{
+	 .start = CH_UART_RX,
+	 .end = CH_UART_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 = {
+		/* Passed to driver */
+		.platform_data = &bfin_uart0_peripherals,
+		},
+};
+#endif
+#endif
+
+#if IS_ENABLED(CONFIG_MTD_NAND_PLATFORM)
+
+static struct mtd_partition bfin_plat_nand_partitions[] = {
+	{
+	 .name = "params(nand)",
+	 .size = 32 * 1024 * 1024,
+	 .offset = 0,
+	 }, {
+	     .name = "userfs(nand)",
+	     .size = MTDPART_SIZ_FULL,
+	     .offset = MTDPART_OFS_APPEND,
+	     },
+};
+
+#define BFIN_NAND_PLAT_CLE 2
+#define BFIN_NAND_PLAT_ALE 3
+
+static void bfin_plat_nand_cmd_ctrl(struct mtd_info *mtd, int cmd,
+				    unsigned int ctrl)
+{
+	struct nand_chip *this = mtd->priv;
+
+	if (cmd == NAND_CMD_NONE)
+		return;
+
+	if (ctrl & NAND_CLE)
+		writeb(cmd, this->IO_ADDR_W + (1 << BFIN_NAND_PLAT_CLE));
+	else
+		writeb(cmd, this->IO_ADDR_W + (1 << BFIN_NAND_PLAT_ALE));
+}
+
+#define BFIN_NAND_PLAT_READY GPIO_PF10
+static int bfin_plat_nand_dev_ready(struct mtd_info *mtd)
+{
+	return gpio_get_value(BFIN_NAND_PLAT_READY);
+}
+
+static struct platform_nand_data bfin_plat_nand_data = {
+	.chip = {
+		 .nr_chips = 1,
+		 .chip_delay = 30,
+		 .partitions = bfin_plat_nand_partitions,
+		 .nr_partitions = ARRAY_SIZE(bfin_plat_nand_partitions),
+		 },
+	.ctrl = {
+		 .cmd_ctrl = bfin_plat_nand_cmd_ctrl,
+		 .dev_ready = bfin_plat_nand_dev_ready,
+		 },
+};
+
+#define MAX(x, y) (x > y ? x : y)
+static struct resource bfin_plat_nand_resources = {
+	.start = 0x24000000,
+	.end = 0x24000000 + (1 << MAX(BFIN_NAND_PLAT_CLE, BFIN_NAND_PLAT_ALE)),
+	.flags = IORESOURCE_MEM,
+};
+
+static struct platform_device bfin_async_nand_device = {
+	.name = "gen_nand",
+	.id = -1,
+	.num_resources = 1,
+	.resource = &bfin_plat_nand_resources,
+	.dev = {
+		.platform_data = &bfin_plat_nand_data,
+		},
+};
+
+static void bfin_plat_nand_init(void)
+{
+	gpio_request(BFIN_NAND_PLAT_READY, "bfin_nand_plat");
+}
+#else
+static void bfin_plat_nand_init(void)
+{
+}
+#endif
+
+#if IS_ENABLED(CONFIG_MTD_DATAFLASH)
+static struct mtd_partition bfin_spi_dataflash_partitions[] = {
+	{
+	 .name = "bootloader",
+	 .size = 0x4200,
+	 .offset = 0,
+	 .mask_flags = MTD_CAP_ROM},
+	{
+	 .name = "u-boot",
+	 .size = 0x42000,
+	 .offset = MTDPART_OFS_APPEND,
+	 },
+	{
+	 .name = "u-boot(params)",
+	 .size = 0x4200,
+	 .offset = MTDPART_OFS_APPEND,
+	 },
+	{
+	 .name = "kernel",
+	 .size = 0x294000,
+	 .offset = MTDPART_OFS_APPEND,
+	 },
+	{
+	 .name = "params",
+	 .size = 0x42000,
+	 .offset = MTDPART_OFS_APPEND,
+	 },
+	{
+	 .name = "rootfs",
+	 .size = MTDPART_SIZ_FULL,
+	 .offset = MTDPART_OFS_APPEND,
+	 }
+};
+
+static struct flash_platform_data bfin_spi_dataflash_data = {
+	.name = "SPI Dataflash",
+	.parts = bfin_spi_dataflash_partitions,
+	.nr_parts = ARRAY_SIZE(bfin_spi_dataflash_partitions),
+};
+
+/* DataFlash chip */
+static struct bfin5xx_spi_chip data_flash_chip_info = {
+	.enable_dma = 0,	/* use dma transfer with this chip */
+};
+#endif
+
+#if IS_ENABLED(CONFIG_SPI_BFIN5XX)
+/* 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,
+	       },
+};
+
+/* SPI controller data */
+static struct bfin5xx_spi_master bfin_spi0_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 bfin_spi0_device = {
+	.name = "bfin-spi",
+	.id = 0,		/* Bus number */
+	.num_resources = ARRAY_SIZE(bfin_spi0_resource),
+	.resource = bfin_spi0_resource,
+	.dev = {
+		.platform_data = &bfin_spi0_info,	/* Passed to driver */
+		},
+};
+#endif
+
+static struct spi_board_info bfin_spi_board_info[] __initdata = {
+#if IS_ENABLED(CONFIG_SPI_SPIDEV)
+	{
+	 .modalias = "spidev",
+	 .max_speed_hz = 3125000,	/* max spi clock (SCK) speed in HZ */
+	 .bus_num = 0,
+	 .chip_select = 3,
+	 },
+#endif
+#if IS_ENABLED(CONFIG_MTD_DATAFLASH)
+	{			/* DataFlash chip */
+	 .modalias = "mtd_dataflash",
+	 .max_speed_hz = 33250000,	/* max spi clock (SCK) speed in HZ */
+	 .bus_num = 0,		/* Framework bus number */
+	 .chip_select = 2,	/* Framework chip select */
+	 .platform_data = &bfin_spi_dataflash_data,
+	 .controller_data = &data_flash_chip_info,
+	 .mode = SPI_MODE_3,
+	 },
+#endif
+};
+
+static struct resource bfin_gpios_resources = {
+	.start = 31,
+/*      .end   = MAX_BLACKFIN_GPIOS - 1, */
+	.end = 32,
+	.flags = IORESOURCE_IRQ,
+};
+
+static struct platform_device bfin_gpios_device = {
+	.name = "simple-gpio",
+	.id = -1,
+	.num_resources = 1,
+	.resource = &bfin_gpios_resources,
+};
+
+static const unsigned int cclk_vlev_datasheet[] = {
+	VRPAIR(VLEV_085, 250000000),
+	VRPAIR(VLEV_090, 300000000),
+	VRPAIR(VLEV_095, 313000000),
+	VRPAIR(VLEV_100, 350000000),
+	VRPAIR(VLEV_105, 400000000),
+	VRPAIR(VLEV_110, 444000000),
+	VRPAIR(VLEV_115, 450000000),
+	VRPAIR(VLEV_120, 475000000),
+	VRPAIR(VLEV_125, 500000000),
+	VRPAIR(VLEV_130, 600000000),
+};
+
+static struct bfin_dpmc_platform_data bfin_dmpc_vreg_data = {
+	.tuple_tab = cclk_vlev_datasheet,
+	.tabsize = ARRAY_SIZE(cclk_vlev_datasheet),
+	.vr_settling_time = 25 /* us */ ,
+};
+
+static struct platform_device bfin_dpmc = {
+	.name = "bfin dpmc",
+	.dev = {
+		.platform_data = &bfin_dmpc_vreg_data,
+		},
+};
+
+static struct platform_device *acvilon_devices[] __initdata = {
+	&bfin_dpmc,
+
+#if IS_ENABLED(CONFIG_SPI_BFIN5XX)
+	&bfin_spi0_device,
+#endif
+
+#if IS_ENABLED(CONFIG_SERIAL_BFIN)
+#ifdef CONFIG_SERIAL_BFIN_UART0
+	&bfin_uart0_device,
+#endif
+#endif
+
+	&bfin_gpios_device,
+
+#if IS_ENABLED(CONFIG_SMSC911X)
+	&smsc911x_device,
+#endif
+
+	&bfin_i2c_pca_device,
+
+#if IS_ENABLED(CONFIG_MTD_NAND_PLATFORM)
+	&bfin_async_nand_device,
+#endif
+
+#if IS_ENABLED(CONFIG_MTD_PLATRAM)
+	&mtd_ram_device,
+#endif
+
+};
+
+static int __init acvilon_init(void)
+{
+	int ret;
+
+	printk(KERN_INFO "%s(): registering device resources\n", __func__);
+
+	bfin_plat_nand_init();
+	ret =
+	    platform_add_devices(acvilon_devices, ARRAY_SIZE(acvilon_devices));
+	if (ret < 0)
+		return ret;
+
+	i2c_register_board_info(0, acvilon_i2c_devs,
+				ARRAY_SIZE(acvilon_i2c_devs));
+
+	bfin_write_FIO0_FLAG_C(1 << 14);
+	msleep(5);
+	bfin_write_FIO0_FLAG_S(1 << 14);
+
+	spi_register_board_info(bfin_spi_board_info,
+				ARRAY_SIZE(bfin_spi_board_info));
+	return 0;
+}
+
+arch_initcall(acvilon_init);
+
+static struct platform_device *acvilon_early_devices[] __initdata = {
+#if defined(CONFIG_SERIAL_BFIN_CONSOLE) || defined(CONFIG_EARLY_PRINTK)
+#ifdef CONFIG_SERIAL_BFIN_UART0
+	&bfin_uart0_device,
+#endif
+#endif
+};
+
+void __init native_machine_early_platform_add_devices(void)
+{
+	printk(KERN_INFO "register early platform devices\n");
+	early_platform_add_devices(acvilon_early_devices,
+				   ARRAY_SIZE(acvilon_early_devices));
+}