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, 516 insertions, 0 deletions

diff --git a/kernel/arch/arm/mach-pxa/lpd270.c b/kernel/arch/arm/mach-pxa/lpd270.c
new file mode 100644
index 000000000..eaee2c20b
--- /dev/null
+++ b/kernel/arch/arm/mach-pxa/lpd270.c
@@ -0,0 +1,516 @@
+/*
+ * linux/arch/arm/mach-pxa/lpd270.c
+ *
+ * Support for the LogicPD PXA270 Card Engine.
+ * Derived from the mainstone code, which carries these notices:
+ *
+ * Author:	Nicolas Pitre
+ * Created:	Nov 05, 2002
+ * Copyright:	MontaVista Software Inc.
+ *
+ * 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/init.h>
+#include <linux/platform_device.h>
+#include <linux/syscore_ops.h>
+#include <linux/interrupt.h>
+#include <linux/sched.h>
+#include <linux/bitops.h>
+#include <linux/fb.h>
+#include <linux/ioport.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/pwm_backlight.h>
+#include <linux/smc91x.h>
+
+#include <asm/types.h>
+#include <asm/setup.h>
+#include <asm/memory.h>
+#include <asm/mach-types.h>
+#include <mach/hardware.h>
+#include <asm/irq.h>
+#include <asm/sizes.h>
+
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <asm/mach/irq.h>
+#include <asm/mach/flash.h>
+
+#include <mach/pxa27x.h>
+#include <mach/lpd270.h>
+#include <mach/audio.h>
+#include <linux/platform_data/video-pxafb.h>
+#include <linux/platform_data/mmc-pxamci.h>
+#include <linux/platform_data/irda-pxaficp.h>
+#include <linux/platform_data/usb-ohci-pxa27x.h>
+#include <mach/smemc.h>
+
+#include "generic.h"
+#include "devices.h"
+
+static unsigned long lpd270_pin_config[] __initdata = {
+	/* Chip Selects */
+	GPIO15_nCS_1,	/* Mainboard Flash */
+	GPIO78_nCS_2,	/* CPLD + Ethernet */
+
+	/* LCD - 16bpp Active TFT */
+	GPIO58_LCD_LDD_0,
+	GPIO59_LCD_LDD_1,
+	GPIO60_LCD_LDD_2,
+	GPIO61_LCD_LDD_3,
+	GPIO62_LCD_LDD_4,
+	GPIO63_LCD_LDD_5,
+	GPIO64_LCD_LDD_6,
+	GPIO65_LCD_LDD_7,
+	GPIO66_LCD_LDD_8,
+	GPIO67_LCD_LDD_9,
+	GPIO68_LCD_LDD_10,
+	GPIO69_LCD_LDD_11,
+	GPIO70_LCD_LDD_12,
+	GPIO71_LCD_LDD_13,
+	GPIO72_LCD_LDD_14,
+	GPIO73_LCD_LDD_15,
+	GPIO74_LCD_FCLK,
+	GPIO75_LCD_LCLK,
+	GPIO76_LCD_PCLK,
+	GPIO77_LCD_BIAS,
+	GPIO16_PWM0_OUT,	/* Backlight */
+
+	/* USB Host */
+	GPIO88_USBH1_PWR,
+	GPIO89_USBH1_PEN,
+
+	/* AC97 */
+	GPIO28_AC97_BITCLK,
+	GPIO29_AC97_SDATA_IN_0,
+	GPIO30_AC97_SDATA_OUT,
+	GPIO31_AC97_SYNC,
+	GPIO45_AC97_SYSCLK,
+
+	GPIO1_GPIO | WAKEUP_ON_EDGE_BOTH,
+};
+
+static unsigned int lpd270_irq_enabled;
+
+static void lpd270_mask_irq(struct irq_data *d)
+{
+	int lpd270_irq = d->irq - LPD270_IRQ(0);
+
+	__raw_writew(~(1 << lpd270_irq), LPD270_INT_STATUS);
+
+	lpd270_irq_enabled &= ~(1 << lpd270_irq);
+	__raw_writew(lpd270_irq_enabled, LPD270_INT_MASK);
+}
+
+static void lpd270_unmask_irq(struct irq_data *d)
+{
+	int lpd270_irq = d->irq - LPD270_IRQ(0);
+
+	lpd270_irq_enabled |= 1 << lpd270_irq;
+	__raw_writew(lpd270_irq_enabled, LPD270_INT_MASK);
+}
+
+static struct irq_chip lpd270_irq_chip = {
+	.name		= "CPLD",
+	.irq_ack	= lpd270_mask_irq,
+	.irq_mask	= lpd270_mask_irq,
+	.irq_unmask	= lpd270_unmask_irq,
+};
+
+static void lpd270_irq_handler(unsigned int irq, struct irq_desc *desc)
+{
+	unsigned long pending;
+
+	pending = __raw_readw(LPD270_INT_STATUS) & lpd270_irq_enabled;
+	do {
+		/* clear useless edge notification */
+		desc->irq_data.chip->irq_ack(&desc->irq_data);
+		if (likely(pending)) {
+			irq = LPD270_IRQ(0) + __ffs(pending);
+			generic_handle_irq(irq);
+
+			pending = __raw_readw(LPD270_INT_STATUS) &
+						lpd270_irq_enabled;
+		}
+	} while (pending);
+}
+
+static void __init lpd270_init_irq(void)
+{
+	int irq;
+
+	pxa27x_init_irq();
+
+	__raw_writew(0, LPD270_INT_MASK);
+	__raw_writew(0, LPD270_INT_STATUS);
+
+	/* setup extra LogicPD PXA270 irqs */
+	for (irq = LPD270_IRQ(2); irq <= LPD270_IRQ(4); irq++) {
+		irq_set_chip_and_handler(irq, &lpd270_irq_chip,
+					 handle_level_irq);
+		set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
+	}
+	irq_set_chained_handler(PXA_GPIO_TO_IRQ(0), lpd270_irq_handler);
+	irq_set_irq_type(PXA_GPIO_TO_IRQ(0), IRQ_TYPE_EDGE_FALLING);
+}
+
+
+#ifdef CONFIG_PM
+static void lpd270_irq_resume(void)
+{
+	__raw_writew(lpd270_irq_enabled, LPD270_INT_MASK);
+}
+
+static struct syscore_ops lpd270_irq_syscore_ops = {
+	.resume = lpd270_irq_resume,
+};
+
+static int __init lpd270_irq_device_init(void)
+{
+	if (machine_is_logicpd_pxa270()) {
+		register_syscore_ops(&lpd270_irq_syscore_ops);
+		return 0;
+	}
+	return -ENODEV;
+}
+
+device_initcall(lpd270_irq_device_init);
+#endif
+
+
+static struct resource smc91x_resources[] = {
+	[0] = {
+		.start	= LPD270_ETH_PHYS,
+		.end	= (LPD270_ETH_PHYS + 0xfffff),
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= LPD270_ETHERNET_IRQ,
+		.end	= LPD270_ETHERNET_IRQ,
+		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
+	},
+};
+
+struct smc91x_platdata smc91x_platdata = {
+	.flags = SMC91X_USE_16BIT | SMC91X_NOWAIT,
+};
+
+static struct platform_device smc91x_device = {
+	.name		= "smc91x",
+	.id		= 0,
+	.num_resources	= ARRAY_SIZE(smc91x_resources),
+	.resource	= smc91x_resources,
+	.dev.platform_data = &smc91x_platdata,
+};
+
+static struct resource lpd270_flash_resources[] = {
+	[0] = {
+		.start	= PXA_CS0_PHYS,
+		.end	= PXA_CS0_PHYS + SZ_64M - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= PXA_CS1_PHYS,
+		.end	= PXA_CS1_PHYS + SZ_64M - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+};
+
+static struct mtd_partition lpd270_flash0_partitions[] = {
+	{
+		.name =		"Bootloader",
+		.size =		0x00040000,
+		.offset =	0,
+		.mask_flags =	MTD_WRITEABLE  /* force read-only */
+	}, {
+		.name =		"Kernel",
+		.size =		0x00400000,
+		.offset =	0x00040000,
+	}, {
+		.name =		"Filesystem",
+		.size =		MTDPART_SIZ_FULL,
+		.offset =	0x00440000
+	},
+};
+
+static struct flash_platform_data lpd270_flash_data[2] = {
+	{
+		.name		= "processor-flash",
+		.map_name	= "cfi_probe",
+		.parts		= lpd270_flash0_partitions,
+		.nr_parts	= ARRAY_SIZE(lpd270_flash0_partitions),
+	}, {
+		.name		= "mainboard-flash",
+		.map_name	= "cfi_probe",
+		.parts		= NULL,
+		.nr_parts	= 0,
+	}
+};
+
+static struct platform_device lpd270_flash_device[2] = {
+	{
+		.name		= "pxa2xx-flash",
+		.id		= 0,
+		.dev = {
+			.platform_data	= &lpd270_flash_data[0],
+		},
+		.resource	= &lpd270_flash_resources[0],
+		.num_resources	= 1,
+	}, {
+		.name		= "pxa2xx-flash",
+		.id		= 1,
+		.dev = {
+			.platform_data	= &lpd270_flash_data[1],
+		},
+		.resource	= &lpd270_flash_resources[1],
+		.num_resources	= 1,
+	},
+};
+
+static struct platform_pwm_backlight_data lpd270_backlight_data = {
+	.pwm_id		= 0,
+	.max_brightness	= 1,
+	.dft_brightness	= 1,
+	.pwm_period_ns	= 78770,
+	.enable_gpio	= -1,
+};
+
+static struct platform_device lpd270_backlight_device = {
+	.name		= "pwm-backlight",
+	.dev		= {
+		.parent	= &pxa27x_device_pwm0.dev,
+		.platform_data = &lpd270_backlight_data,
+	},
+};
+
+/* 5.7" TFT QVGA (LoLo display number 1) */
+static struct pxafb_mode_info sharp_lq057q3dc02_mode = {
+	.pixclock		= 150000,
+	.xres			= 320,
+	.yres			= 240,
+	.bpp			= 16,
+	.hsync_len		= 0x14,
+	.left_margin		= 0x28,
+	.right_margin		= 0x0a,
+	.vsync_len		= 0x02,
+	.upper_margin		= 0x08,
+	.lower_margin		= 0x14,
+	.sync			= FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
+};
+
+static struct pxafb_mach_info sharp_lq057q3dc02 = {
+	.modes			= &sharp_lq057q3dc02_mode,
+	.num_modes		= 1,
+	.lcd_conn		= LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL |
+				  LCD_ALTERNATE_MAPPING,
+};
+
+/* 12.1" TFT SVGA (LoLo display number 2) */
+static struct pxafb_mode_info sharp_lq121s1dg31_mode = {
+	.pixclock		= 50000,
+	.xres			= 800,
+	.yres			= 600,
+	.bpp			= 16,
+	.hsync_len		= 0x05,
+	.left_margin		= 0x52,
+	.right_margin		= 0x05,
+	.vsync_len		= 0x04,
+	.upper_margin		= 0x14,
+	.lower_margin		= 0x0a,
+	.sync			= FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
+};
+
+static struct pxafb_mach_info sharp_lq121s1dg31 = {
+	.modes			= &sharp_lq121s1dg31_mode,
+	.num_modes		= 1,
+	.lcd_conn		= LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL |
+				  LCD_ALTERNATE_MAPPING,
+};
+
+/* 3.6" TFT QVGA (LoLo display number 3) */
+static struct pxafb_mode_info sharp_lq036q1da01_mode = {
+	.pixclock		= 150000,
+	.xres			= 320,
+	.yres			= 240,
+	.bpp			= 16,
+	.hsync_len		= 0x0e,
+	.left_margin		= 0x04,
+	.right_margin		= 0x0a,
+	.vsync_len		= 0x03,
+	.upper_margin		= 0x03,
+	.lower_margin		= 0x03,
+	.sync			= FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
+};
+
+static struct pxafb_mach_info sharp_lq036q1da01 = {
+	.modes			= &sharp_lq036q1da01_mode,
+	.num_modes		= 1,
+	.lcd_conn		= LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL |
+				  LCD_ALTERNATE_MAPPING,
+};
+
+/* 6.4" TFT VGA (LoLo display number 5) */
+static struct pxafb_mode_info sharp_lq64d343_mode = {
+	.pixclock		= 25000,
+	.xres			= 640,
+	.yres			= 480,
+	.bpp			= 16,
+	.hsync_len		= 0x31,
+	.left_margin		= 0x89,
+	.right_margin		= 0x19,
+	.vsync_len		= 0x12,
+	.upper_margin		= 0x22,
+	.lower_margin		= 0x00,
+	.sync			= FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
+};
+
+static struct pxafb_mach_info sharp_lq64d343 = {
+	.modes			= &sharp_lq64d343_mode,
+	.num_modes		= 1,
+	.lcd_conn		= LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL |
+				  LCD_ALTERNATE_MAPPING,
+};
+
+/* 10.4" TFT VGA (LoLo display number 7) */
+static struct pxafb_mode_info sharp_lq10d368_mode = {
+	.pixclock		= 25000,
+	.xres			= 640,
+	.yres			= 480,
+	.bpp			= 16,
+	.hsync_len		= 0x31,
+	.left_margin		= 0x89,
+	.right_margin		= 0x19,
+	.vsync_len		= 0x12,
+	.upper_margin		= 0x22,
+	.lower_margin		= 0x00,
+	.sync			= FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
+};
+
+static struct pxafb_mach_info sharp_lq10d368 = {
+	.modes			= &sharp_lq10d368_mode,
+	.num_modes		= 1,
+	.lcd_conn		= LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL |
+				  LCD_ALTERNATE_MAPPING,
+};
+
+/* 3.5" TFT QVGA (LoLo display number 8) */
+static struct pxafb_mode_info sharp_lq035q7db02_20_mode = {
+	.pixclock		= 150000,
+	.xres			= 240,
+	.yres			= 320,
+	.bpp			= 16,
+	.hsync_len		= 0x0e,
+	.left_margin		= 0x0a,
+	.right_margin		= 0x0a,
+	.vsync_len		= 0x03,
+	.upper_margin		= 0x05,
+	.lower_margin		= 0x14,
+	.sync			= FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
+};
+
+static struct pxafb_mach_info sharp_lq035q7db02_20 = {
+	.modes			= &sharp_lq035q7db02_20_mode,
+	.num_modes		= 1,
+	.lcd_conn		= LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL |
+				  LCD_ALTERNATE_MAPPING,
+};
+
+static struct pxafb_mach_info *lpd270_lcd_to_use;
+
+static int __init lpd270_set_lcd(char *str)
+{
+	if (!strncasecmp(str, "lq057q3dc02", 11)) {
+		lpd270_lcd_to_use = &sharp_lq057q3dc02;
+	} else if (!strncasecmp(str, "lq121s1dg31", 11)) {
+		lpd270_lcd_to_use = &sharp_lq121s1dg31;
+	} else if (!strncasecmp(str, "lq036q1da01", 11)) {
+		lpd270_lcd_to_use = &sharp_lq036q1da01;
+	} else if (!strncasecmp(str, "lq64d343", 8)) {
+		lpd270_lcd_to_use = &sharp_lq64d343;
+	} else if (!strncasecmp(str, "lq10d368", 8)) {
+		lpd270_lcd_to_use = &sharp_lq10d368;
+	} else if (!strncasecmp(str, "lq035q7db02-20", 14)) {
+		lpd270_lcd_to_use = &sharp_lq035q7db02_20;
+	} else {
+		printk(KERN_INFO "lpd270: unknown lcd panel [%s]\n", str);
+	}
+
+	return 1;
+}
+
+__setup("lcd=", lpd270_set_lcd);
+
+static struct platform_device *platform_devices[] __initdata = {
+	&smc91x_device,
+	&lpd270_backlight_device,
+	&lpd270_flash_device[0],
+	&lpd270_flash_device[1],
+};
+
+static struct pxaohci_platform_data lpd270_ohci_platform_data = {
+	.port_mode	= PMM_PERPORT_MODE,
+	.flags		= ENABLE_PORT_ALL | POWER_CONTROL_LOW | POWER_SENSE_LOW,
+};
+
+static void __init lpd270_init(void)
+{
+	pxa2xx_mfp_config(ARRAY_AND_SIZE(lpd270_pin_config));
+
+	pxa_set_ffuart_info(NULL);
+	pxa_set_btuart_info(NULL);
+	pxa_set_stuart_info(NULL);
+
+	lpd270_flash_data[0].width = (__raw_readl(BOOT_DEF) & 1) ? 2 : 4;
+	lpd270_flash_data[1].width = 4;
+
+	/*
+	 * System bus arbiter setting:
+	 * - Core_Park
+	 * - LCD_wt:DMA_wt:CORE_Wt = 2:3:4
+	 */
+	ARB_CNTRL = ARB_CORE_PARK | 0x234;
+
+	platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
+
+	pxa_set_ac97_info(NULL);
+
+	if (lpd270_lcd_to_use != NULL)
+		pxa_set_fb_info(NULL, lpd270_lcd_to_use);
+
+	pxa_set_ohci_info(&lpd270_ohci_platform_data);
+}
+
+
+static struct map_desc lpd270_io_desc[] __initdata = {
+	{
+		.virtual	= (unsigned long)LPD270_CPLD_VIRT,
+		.pfn		= __phys_to_pfn(LPD270_CPLD_PHYS),
+		.length		= LPD270_CPLD_SIZE,
+		.type		= MT_DEVICE,
+	},
+};
+
+static void __init lpd270_map_io(void)
+{
+	pxa27x_map_io();
+	iotable_init(lpd270_io_desc, ARRAY_SIZE(lpd270_io_desc));
+
+	/* for use I SRAM as framebuffer.  */
+	PSLR |= 0x00000F04;
+	PCFR  = 0x00000066;
+}
+
+MACHINE_START(LOGICPD_PXA270, "LogicPD PXA270 Card Engine")
+	/* Maintainer: Peter Barada */
+	.atag_offset	= 0x100,
+	.map_io		= lpd270_map_io,
+	.nr_irqs	= LPD270_NR_IRQS,
+	.init_irq	= lpd270_init_irq,
+	.handle_irq	= pxa27x_handle_irq,
+	.init_time	= pxa_timer_init,
+	.init_machine	= lpd270_init,
+	.restart	= pxa_restart,
+MACHINE_END