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, 463 insertions, 0 deletions

diff --git a/kernel/arch/arm/mach-omap1/board-innovator.c b/kernel/arch/arm/mach-omap1/board-innovator.c
new file mode 100644
index 000000000..c49ce83cc
--- /dev/null
+++ b/kernel/arch/arm/mach-omap1/board-innovator.c
@@ -0,0 +1,463 @@
+/*
+ * linux/arch/arm/mach-omap1/board-innovator.c
+ *
+ * Board specific inits for OMAP-1510 and OMAP-1610 Innovator
+ *
+ * Copyright (C) 2001 RidgeRun, Inc.
+ * Author: Greg Lonnon <glonnon@ridgerun.com>
+ *
+ * Copyright (C) 2002 MontaVista Software, Inc.
+ *
+ * Separated FPGA interrupts from innovator1510.c and cleaned up for 2.6
+ * Copyright (C) 2004 Nokia Corporation by Tony Lindrgen <tony@atomide.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/gpio.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/delay.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/mtd/physmap.h>
+#include <linux/input.h>
+#include <linux/smc91x.h>
+#include <linux/omapfb.h>
+
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+
+#include <mach/mux.h>
+#include <mach/flash.h>
+#include <mach/tc.h>
+#include <linux/platform_data/keypad-omap.h>
+
+#include <mach/hardware.h>
+#include <mach/usb.h>
+
+#include "iomap.h"
+#include "common.h"
+#include "mmc.h"
+
+/* At OMAP1610 Innovator the Ethernet is directly connected to CS1 */
+#define INNOVATOR1610_ETHR_START	0x04000300
+
+static const unsigned int innovator_keymap[] = {
+	KEY(0, 0, KEY_F1),
+	KEY(3, 0, KEY_DOWN),
+	KEY(1, 1, KEY_F2),
+	KEY(2, 1, KEY_RIGHT),
+	KEY(0, 2, KEY_F3),
+	KEY(1, 2, KEY_F4),
+	KEY(2, 2, KEY_UP),
+	KEY(2, 3, KEY_ENTER),
+	KEY(3, 3, KEY_LEFT),
+};
+
+static struct mtd_partition innovator_partitions[] = {
+	/* bootloader (U-Boot, etc) in first sector */
+	{
+	      .name		= "bootloader",
+	      .offset		= 0,
+	      .size		= SZ_128K,
+	      .mask_flags	= MTD_WRITEABLE, /* force read-only */
+	},
+	/* bootloader params in the next sector */
+	{
+	      .name		= "params",
+	      .offset		= MTDPART_OFS_APPEND,
+	      .size		= SZ_128K,
+	      .mask_flags	= 0,
+	},
+	/* kernel */
+	{
+	      .name		= "kernel",
+	      .offset		= MTDPART_OFS_APPEND,
+	      .size		= SZ_2M,
+	      .mask_flags	= 0
+	},
+	/* rest of flash1 is a file system */
+	{
+	      .name		= "rootfs",
+	      .offset		= MTDPART_OFS_APPEND,
+	      .size		= SZ_16M - SZ_2M - 2 * SZ_128K,
+	      .mask_flags	= 0
+	},
+	/* file system */
+	{
+	      .name		= "filesystem",
+	      .offset		= MTDPART_OFS_APPEND,
+	      .size		= MTDPART_SIZ_FULL,
+	      .mask_flags	= 0
+	}
+};
+
+static struct physmap_flash_data innovator_flash_data = {
+	.width		= 2,
+	.set_vpp	= omap1_set_vpp,
+	.parts		= innovator_partitions,
+	.nr_parts	= ARRAY_SIZE(innovator_partitions),
+};
+
+static struct resource innovator_flash_resource = {
+	.start		= OMAP_CS0_PHYS,
+	.end		= OMAP_CS0_PHYS + SZ_32M - 1,
+	.flags		= IORESOURCE_MEM,
+};
+
+static struct platform_device innovator_flash_device = {
+	.name		= "physmap-flash",
+	.id		= 0,
+	.dev		= {
+		.platform_data	= &innovator_flash_data,
+	},
+	.num_resources	= 1,
+	.resource	= &innovator_flash_resource,
+};
+
+static struct resource innovator_kp_resources[] = {
+	[0] = {
+		.start	= INT_KEYBOARD,
+		.end	= INT_KEYBOARD,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static const struct matrix_keymap_data innovator_keymap_data = {
+	.keymap		= innovator_keymap,
+	.keymap_size	= ARRAY_SIZE(innovator_keymap),
+};
+
+static struct omap_kp_platform_data innovator_kp_data = {
+	.rows		= 8,
+	.cols		= 8,
+	.keymap_data	= &innovator_keymap_data,
+	.delay		= 4,
+};
+
+static struct platform_device innovator_kp_device = {
+	.name		= "omap-keypad",
+	.id		= -1,
+	.dev		= {
+		.platform_data = &innovator_kp_data,
+	},
+	.num_resources	= ARRAY_SIZE(innovator_kp_resources),
+	.resource	= innovator_kp_resources,
+};
+
+static struct smc91x_platdata innovator_smc91x_info = {
+	.flags	= SMC91X_USE_16BIT | SMC91X_NOWAIT,
+	.leda	= RPC_LED_100_10,
+	.ledb	= RPC_LED_TX_RX,
+};
+
+#ifdef CONFIG_ARCH_OMAP15XX
+
+#include <linux/spi/spi.h>
+#include <linux/spi/ads7846.h>
+
+
+/* Only FPGA needs to be mapped here. All others are done with ioremap */
+static struct map_desc innovator1510_io_desc[] __initdata = {
+	{
+		.virtual	= OMAP1510_FPGA_BASE,
+		.pfn		= __phys_to_pfn(OMAP1510_FPGA_START),
+		.length		= OMAP1510_FPGA_SIZE,
+		.type		= MT_DEVICE
+	}
+};
+
+static struct resource innovator1510_smc91x_resources[] = {
+	[0] = {
+		.start	= OMAP1510_FPGA_ETHR_START,	/* Physical */
+		.end	= OMAP1510_FPGA_ETHR_START + 0xf,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= OMAP1510_INT_ETHER,
+		.end	= OMAP1510_INT_ETHER,
+		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
+	},
+};
+
+static struct platform_device innovator1510_smc91x_device = {
+	.name		= "smc91x",
+	.id		= 0,
+	.dev	= {
+		.platform_data	= &innovator_smc91x_info,
+	},
+	.num_resources	= ARRAY_SIZE(innovator1510_smc91x_resources),
+	.resource	= innovator1510_smc91x_resources,
+};
+
+static struct platform_device innovator1510_lcd_device = {
+	.name		= "lcd_inn1510",
+	.id		= -1,
+};
+
+static struct platform_device innovator1510_spi_device = {
+	.name		= "spi_inn1510",
+	.id		= -1,
+};
+
+static struct platform_device *innovator1510_devices[] __initdata = {
+	&innovator_flash_device,
+	&innovator1510_smc91x_device,
+	&innovator_kp_device,
+	&innovator1510_lcd_device,
+	&innovator1510_spi_device,
+};
+
+static int innovator_get_pendown_state(void)
+{
+	return !(__raw_readb(OMAP1510_FPGA_TOUCHSCREEN) & (1 << 5));
+}
+
+static const struct ads7846_platform_data innovator1510_ts_info = {
+	.model			= 7846,
+	.vref_delay_usecs	= 100,	/* internal, no capacitor */
+	.x_plate_ohms		= 419,
+	.y_plate_ohms		= 486,
+	.get_pendown_state	= innovator_get_pendown_state,
+};
+
+static struct spi_board_info __initdata innovator1510_boardinfo[] = { {
+	/* FPGA (bus "10") CS0 has an ads7846e */
+	.modalias		= "ads7846",
+	.platform_data		= &innovator1510_ts_info,
+	.irq			= OMAP1510_INT_FPGA_TS,
+	.max_speed_hz		= 120000 /* max sample rate at 3V */
+					* 26 /* command + data + overhead */,
+	.bus_num		= 10,
+	.chip_select		= 0,
+} };
+
+#endif /* CONFIG_ARCH_OMAP15XX */
+
+#ifdef CONFIG_ARCH_OMAP16XX
+
+static struct resource innovator1610_smc91x_resources[] = {
+	[0] = {
+		.start	= INNOVATOR1610_ETHR_START,		/* Physical */
+		.end	= INNOVATOR1610_ETHR_START + 0xf,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_LOWEDGE,
+	},
+};
+
+static struct platform_device innovator1610_smc91x_device = {
+	.name		= "smc91x",
+	.id		= 0,
+	.dev	= {
+		.platform_data	= &innovator_smc91x_info,
+	},
+	.num_resources	= ARRAY_SIZE(innovator1610_smc91x_resources),
+	.resource	= innovator1610_smc91x_resources,
+};
+
+static struct platform_device innovator1610_lcd_device = {
+	.name		= "inn1610_lcd",
+	.id		= -1,
+};
+
+static struct platform_device *innovator1610_devices[] __initdata = {
+	&innovator_flash_device,
+	&innovator1610_smc91x_device,
+	&innovator_kp_device,
+	&innovator1610_lcd_device,
+};
+
+#endif /* CONFIG_ARCH_OMAP16XX */
+
+static void __init innovator_init_smc91x(void)
+{
+	if (cpu_is_omap1510()) {
+		__raw_writeb(__raw_readb(OMAP1510_FPGA_RST) & ~1,
+			   OMAP1510_FPGA_RST);
+		udelay(750);
+	} else {
+		if (gpio_request(0, "SMC91x irq") < 0) {
+			printk("Error requesting gpio 0 for smc91x irq\n");
+			return;
+		}
+	}
+}
+
+#ifdef CONFIG_ARCH_OMAP15XX
+static struct omap_usb_config innovator1510_usb_config __initdata = {
+	/* for bundled non-standard host and peripheral cables */
+	.hmc_mode	= 4,
+
+	.register_host	= 1,
+	.pins[1]	= 6,
+	.pins[2]	= 6,		/* Conflicts with UART2 */
+
+	.register_dev	= 1,
+	.pins[0]	= 2,
+};
+
+static struct omap_lcd_config innovator1510_lcd_config __initdata = {
+	.ctrl_name	= "internal",
+};
+#endif
+
+#ifdef CONFIG_ARCH_OMAP16XX
+static struct omap_usb_config h2_usb_config __initdata = {
+	/* usb1 has a Mini-AB port and external isp1301 transceiver */
+	.otg		= 2,
+
+#if IS_ENABLED(CONFIG_USB_OMAP)
+	.hmc_mode	= 19,	/* 0:host(off) 1:dev|otg 2:disabled */
+	/* .hmc_mode	= 21,*/	/* 0:host(off) 1:dev(loopback) 2:host(loopback) */
+#elif	defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
+	/* NONSTANDARD CABLE NEEDED (B-to-Mini-B) */
+	.hmc_mode	= 20,	/* 1:dev|otg(off) 1:host 2:disabled */
+#endif
+
+	.pins[1]	= 3,
+};
+
+static struct omap_lcd_config innovator1610_lcd_config __initdata = {
+	.ctrl_name	= "internal",
+};
+#endif
+
+#if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE)
+
+static int mmc_set_power(struct device *dev, int slot, int power_on,
+				int vdd)
+{
+	if (power_on)
+		__raw_writeb(__raw_readb(OMAP1510_FPGA_POWER) | (1 << 3),
+				OMAP1510_FPGA_POWER);
+	else
+		__raw_writeb(__raw_readb(OMAP1510_FPGA_POWER) & ~(1 << 3),
+				OMAP1510_FPGA_POWER);
+
+	return 0;
+}
+
+/*
+ * Innovator could use the following functions tested:
+ * - mmc_get_wp that uses OMAP_MPUIO(3)
+ * - mmc_get_cover_state that uses FPGA F4 UIO43
+ */
+static struct omap_mmc_platform_data mmc1_data = {
+	.nr_slots                       = 1,
+	.slots[0]       = {
+		.set_power		= mmc_set_power,
+		.wires			= 4,
+		.name                   = "mmcblk",
+	},
+};
+
+static struct omap_mmc_platform_data *mmc_data[OMAP16XX_NR_MMC];
+
+static void __init innovator_mmc_init(void)
+{
+	mmc_data[0] = &mmc1_data;
+	omap1_init_mmc(mmc_data, OMAP15XX_NR_MMC);
+}
+
+#else
+static inline void innovator_mmc_init(void)
+{
+}
+#endif
+
+static void __init innovator_init(void)
+{
+	if (cpu_is_omap1510())
+		omap1510_fpga_init_irq();
+	innovator_init_smc91x();
+
+#ifdef CONFIG_ARCH_OMAP15XX
+	if (cpu_is_omap1510()) {
+		unsigned char reg;
+
+		/* mux pins for uarts */
+		omap_cfg_reg(UART1_TX);
+		omap_cfg_reg(UART1_RTS);
+		omap_cfg_reg(UART2_TX);
+		omap_cfg_reg(UART2_RTS);
+		omap_cfg_reg(UART3_TX);
+		omap_cfg_reg(UART3_RX);
+
+		reg = __raw_readb(OMAP1510_FPGA_POWER);
+		reg |= OMAP1510_FPGA_PCR_COM1_EN;
+		__raw_writeb(reg, OMAP1510_FPGA_POWER);
+		udelay(10);
+
+		reg = __raw_readb(OMAP1510_FPGA_POWER);
+		reg |= OMAP1510_FPGA_PCR_COM2_EN;
+		__raw_writeb(reg, OMAP1510_FPGA_POWER);
+		udelay(10);
+
+		platform_add_devices(innovator1510_devices, ARRAY_SIZE(innovator1510_devices));
+		spi_register_board_info(innovator1510_boardinfo,
+				ARRAY_SIZE(innovator1510_boardinfo));
+	}
+#endif
+#ifdef CONFIG_ARCH_OMAP16XX
+	if (!cpu_is_omap1510()) {
+		innovator1610_smc91x_resources[1].start = gpio_to_irq(0);
+		innovator1610_smc91x_resources[1].end = gpio_to_irq(0);
+		platform_add_devices(innovator1610_devices, ARRAY_SIZE(innovator1610_devices));
+	}
+#endif
+
+#ifdef CONFIG_ARCH_OMAP15XX
+	if (cpu_is_omap1510()) {
+		omap1_usb_init(&innovator1510_usb_config);
+		omapfb_set_lcd_config(&innovator1510_lcd_config);
+	}
+#endif
+#ifdef CONFIG_ARCH_OMAP16XX
+	if (cpu_is_omap1610()) {
+		omap1_usb_init(&h2_usb_config);
+		omapfb_set_lcd_config(&innovator1610_lcd_config);
+	}
+#endif
+	omap_serial_init();
+	omap_register_i2c_bus(1, 100, NULL, 0);
+	innovator_mmc_init();
+}
+
+/*
+ * REVISIT: Assume 15xx for now, we don't want to do revision check
+ * until later on. The right way to fix this is to set up a different
+ * machine_id for 16xx Innovator, or use device tree.
+ */
+static void __init innovator_map_io(void)
+{
+#ifdef CONFIG_ARCH_OMAP15XX
+	omap15xx_map_io();
+
+	iotable_init(innovator1510_io_desc, ARRAY_SIZE(innovator1510_io_desc));
+	udelay(10);	/* Delay needed for FPGA */
+
+	/* Dump the Innovator FPGA rev early - useful info for support. */
+	pr_debug("Innovator FPGA Rev %d.%d Board Rev %d\n",
+			__raw_readb(OMAP1510_FPGA_REV_HIGH),
+			__raw_readb(OMAP1510_FPGA_REV_LOW),
+			__raw_readb(OMAP1510_FPGA_BOARD_REV));
+#endif
+}
+
+MACHINE_START(OMAP_INNOVATOR, "TI-Innovator")
+	/* Maintainer: MontaVista Software, Inc. */
+	.atag_offset	= 0x100,
+	.map_io		= innovator_map_io,
+	.init_early     = omap1_init_early,
+	.init_irq	= omap1_init_irq,
+	.init_machine	= innovator_init,
+	.init_late	= omap1_init_late,
+	.init_time	= omap1_timer_init,
+	.restart	= omap1_restart,
+MACHINE_END