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, 308 insertions, 0 deletions

diff --git a/kernel/arch/sh/boards/mach-r2d/setup.c b/kernel/arch/sh/boards/mach-r2d/setup.c
new file mode 100644
index 000000000..4b98a5251
--- /dev/null
+++ b/kernel/arch/sh/boards/mach-r2d/setup.c
@@ -0,0 +1,308 @@
+/*
+ * Renesas Technology Sales RTS7751R2D Support.
+ *
+ * Copyright (C) 2002 - 2006 Atom Create Engineering Co., Ltd.
+ * Copyright (C) 2004 - 2007 Paul Mundt
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/mtd/physmap.h>
+#include <linux/ata_platform.h>
+#include <linux/sm501.h>
+#include <linux/sm501-regs.h>
+#include <linux/pm.h>
+#include <linux/fb.h>
+#include <linux/spi/spi.h>
+#include <linux/spi/spi_bitbang.h>
+#include <asm/machvec.h>
+#include <mach/r2d.h>
+#include <asm/io.h>
+#include <asm/io_trapped.h>
+#include <asm/spi.h>
+
+static struct resource cf_ide_resources[] = {
+	[0] = {
+		.start	= PA_AREA5_IO + 0x1000,
+		.end	= PA_AREA5_IO + 0x1000 + 0x10 - 0x2,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= PA_AREA5_IO + 0x80c,
+		.end	= PA_AREA5_IO + 0x80c,
+		.flags	= IORESOURCE_MEM,
+	},
+#ifndef CONFIG_RTS7751R2D_1 /* For R2D-1 polling is preferred */
+	[2] = {
+		.start	= IRQ_CF_IDE,
+		.flags	= IORESOURCE_IRQ,
+	},
+#endif
+};
+
+static struct pata_platform_info pata_info = {
+	.ioport_shift	= 1,
+};
+
+static struct platform_device cf_ide_device  = {
+	.name		= "pata_platform",
+	.id		= -1,
+	.num_resources	= ARRAY_SIZE(cf_ide_resources),
+	.resource	= cf_ide_resources,
+	.dev	= {
+		.platform_data	= &pata_info,
+	},
+};
+
+static struct spi_board_info spi_bus[] = {
+	{
+		.modalias	= "rtc-r9701",
+		.max_speed_hz	= 1000000,
+		.mode		= SPI_MODE_3,
+	},
+};
+
+static void r2d_chip_select(struct sh_spi_info *spi, int cs, int state)
+{
+	BUG_ON(cs != 0);  /* Single Epson RTC-9701JE attached on CS0 */
+	__raw_writew(state == BITBANG_CS_ACTIVE, PA_RTCCE);
+}
+
+static struct sh_spi_info spi_info = {
+	.num_chipselect = 1,
+	.chip_select = r2d_chip_select,
+};
+
+static struct resource spi_sh_sci_resources[] = {
+	{
+		.start	= 0xffe00000,
+		.end	= 0xffe0001f,
+		.flags	= IORESOURCE_MEM,
+	},
+};
+
+static struct platform_device spi_sh_sci_device  = {
+	.name		= "spi_sh_sci",
+	.id		= -1,
+	.num_resources	= ARRAY_SIZE(spi_sh_sci_resources),
+	.resource	= spi_sh_sci_resources,
+	.dev	= {
+		.platform_data	= &spi_info,
+	},
+};
+
+static struct resource heartbeat_resources[] = {
+	[0] = {
+		.start	= PA_OUTPORT,
+		.end	= PA_OUTPORT,
+		.flags	= IORESOURCE_MEM,
+	},
+};
+
+static struct platform_device heartbeat_device = {
+	.name		= "heartbeat",
+	.id		= -1,
+	.num_resources	= ARRAY_SIZE(heartbeat_resources),
+	.resource	= heartbeat_resources,
+};
+
+static struct resource sm501_resources[] = {
+	[0]	= {
+		.start	= 0x10000000,
+		.end	= 0x13e00000 - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1]	= {
+		.start	= 0x13e00000,
+		.end	= 0x13ffffff,
+		.flags	= IORESOURCE_MEM,
+	},
+	[2]	= {
+		.start	= IRQ_VOYAGER,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct fb_videomode sm501_default_mode = {
+	.pixclock	= 35714,
+	.xres		= 640,
+	.yres		= 480,
+	.left_margin	= 105,
+	.right_margin	= 50,
+	.upper_margin	= 35,
+	.lower_margin	= 0,
+	.hsync_len	= 96,
+	.vsync_len	= 2,
+	.sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
+};
+
+static struct sm501_platdata_fbsub sm501_pdata_fbsub_pnl = {
+	.def_bpp	= 16,
+	.def_mode	= &sm501_default_mode,
+	.flags		= SM501FB_FLAG_USE_INIT_MODE |
+			  SM501FB_FLAG_USE_HWCURSOR |
+			  SM501FB_FLAG_USE_HWACCEL |
+			  SM501FB_FLAG_DISABLE_AT_EXIT,
+};
+
+static struct sm501_platdata_fbsub sm501_pdata_fbsub_crt = {
+	.flags		= (SM501FB_FLAG_USE_INIT_MODE |
+			   SM501FB_FLAG_USE_HWCURSOR |
+			   SM501FB_FLAG_USE_HWACCEL |
+			   SM501FB_FLAG_DISABLE_AT_EXIT),
+
+};
+
+static struct sm501_platdata_fb sm501_fb_pdata = {
+	.fb_route	= SM501_FB_OWN,
+	.fb_crt		= &sm501_pdata_fbsub_crt,
+	.fb_pnl		= &sm501_pdata_fbsub_pnl,
+	.flags		= SM501_FBPD_SWAP_FB_ENDIAN,
+};
+
+static struct sm501_initdata sm501_initdata = {
+	.devices	= SM501_USE_USB_HOST | SM501_USE_UART0,
+};
+
+static struct sm501_platdata sm501_platform_data = {
+	.init		= &sm501_initdata,
+	.fb		= &sm501_fb_pdata,
+};
+
+static struct platform_device sm501_device = {
+	.name		= "sm501",
+	.id		= -1,
+	.dev		= {
+		.platform_data	= &sm501_platform_data,
+	},
+	.num_resources	= ARRAY_SIZE(sm501_resources),
+	.resource	= sm501_resources,
+};
+
+static struct mtd_partition r2d_partitions[] = {
+	{
+		.name		= "U-Boot",
+		.offset		= 0x00000000,
+		.size		= 0x00040000,
+		.mask_flags	= MTD_WRITEABLE,
+	}, {
+		.name		= "Environment",
+		.offset		= MTDPART_OFS_NXTBLK,
+		.size		= 0x00040000,
+		.mask_flags	= MTD_WRITEABLE,
+	}, {
+		.name		= "Kernel",
+		.offset		= MTDPART_OFS_NXTBLK,
+		.size		= 0x001c0000,
+	}, {
+		.name		= "Flash_FS",
+		.offset		= MTDPART_OFS_NXTBLK,
+		.size		= MTDPART_SIZ_FULL,
+	}
+};
+
+static struct physmap_flash_data flash_data = {
+	.width		= 2,
+	.nr_parts	= ARRAY_SIZE(r2d_partitions),
+	.parts		= r2d_partitions,
+};
+
+static struct resource flash_resource = {
+	.start		= 0x00000000,
+	.end		= 0x02000000,
+	.flags		= IORESOURCE_MEM,
+};
+
+static struct platform_device flash_device = {
+	.name		= "physmap-flash",
+	.id		= -1,
+	.resource	= &flash_resource,
+	.num_resources	= 1,
+	.dev		= {
+		.platform_data = &flash_data,
+	},
+};
+
+static struct platform_device *rts7751r2d_devices[] __initdata = {
+	&sm501_device,
+	&heartbeat_device,
+	&spi_sh_sci_device,
+};
+
+/*
+ * The CF is connected with a 16-bit bus where 8-bit operations are
+ * unsupported. The linux ata driver is however using 8-bit operations, so
+ * insert a trapped io filter to convert 8-bit operations into 16-bit.
+ */
+static struct trapped_io cf_trapped_io = {
+	.resource		= cf_ide_resources,
+	.num_resources		= 2,
+	.minimum_bus_width	= 16,
+};
+
+static int __init rts7751r2d_devices_setup(void)
+{
+	if (register_trapped_io(&cf_trapped_io) == 0)
+		platform_device_register(&cf_ide_device);
+
+	if (mach_is_r2d_plus())
+		platform_device_register(&flash_device);
+
+	spi_register_board_info(spi_bus, ARRAY_SIZE(spi_bus));
+
+	return platform_add_devices(rts7751r2d_devices,
+				    ARRAY_SIZE(rts7751r2d_devices));
+}
+device_initcall(rts7751r2d_devices_setup);
+
+static void rts7751r2d_power_off(void)
+{
+	__raw_writew(0x0001, PA_POWOFF);
+}
+
+/*
+ * Initialize the board
+ */
+static void __init rts7751r2d_setup(char **cmdline_p)
+{
+	void __iomem *sm501_reg;
+	u16 ver = __raw_readw(PA_VERREG);
+
+	printk(KERN_INFO "Renesas Technology Sales RTS7751R2D support.\n");
+
+	printk(KERN_INFO "FPGA version:%d (revision:%d)\n",
+					(ver >> 4) & 0xf, ver & 0xf);
+
+	__raw_writew(0x0000, PA_OUTPORT);
+	pm_power_off = rts7751r2d_power_off;
+
+	/* sm501 dram configuration:
+	 * ColSizeX = 11 - External Memory Column Size: 256 words.
+	 * APX = 1 - External Memory Active to Pre-Charge Delay: 7 clocks.
+	 * RstX = 1 - External Memory Reset: Normal.
+	 * Rfsh = 1 - Local Memory Refresh to Command Delay: 12 clocks.
+	 * BwC =  1 - Local Memory Block Write Cycle Time: 2 clocks.
+	 * BwP =  1 - Local Memory Block Write to Pre-Charge Delay: 1 clock.
+	 * AP = 1 - Internal Memory Active to Pre-Charge Delay: 7 clocks.
+	 * Rst = 1 - Internal Memory Reset: Normal.
+	 * RA = 1 - Internal Memory Remain in Active State: Do not remain.
+	 */
+
+	sm501_reg = (void __iomem *)0xb3e00000 + SM501_DRAM_CONTROL;
+	writel(readl(sm501_reg) | 0x00f107c0, sm501_reg);
+}
+
+/*
+ * The Machine Vector
+ */
+static struct sh_machine_vector mv_rts7751r2d __initmv = {
+	.mv_name		= "RTS7751R2D",
+	.mv_setup		= rts7751r2d_setup,
+	.mv_init_irq		= init_rts7751r2d_IRQ,
+	.mv_irq_demux		= rts7751r2d_irq_demux,
+};