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, 275 insertions, 0 deletions

diff --git a/kernel/arch/arm/mach-clps711x/board-autcpu12.c b/kernel/arch/arm/mach-clps711x/board-autcpu12.c
new file mode 100644
index 000000000..45abf6bd5
--- /dev/null
+++ b/kernel/arch/arm/mach-clps711x/board-autcpu12.c
@@ -0,0 +1,275 @@
+/*
+ *  linux/arch/arm/mach-clps711x/autcpu12.c
+ *
+ * (c) 2001 Thomas Gleixner, autronix automation <gleixner@autronix.de>
+ *
+ * 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, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/types.h>
+#include <linux/string.h>
+#include <linux/mm.h>
+#include <linux/io.h>
+#include <linux/gpio.h>
+#include <linux/ioport.h>
+#include <linux/interrupt.h>
+#include <linux/mtd/physmap.h>
+#include <linux/mtd/plat-ram.h>
+#include <linux/mtd/partitions.h>
+#include <linux/mtd/nand-gpio.h>
+#include <linux/platform_device.h>
+#include <linux/basic_mmio_gpio.h>
+
+#include <mach/hardware.h>
+#include <asm/sizes.h>
+#include <asm/setup.h>
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/pgtable.h>
+#include <asm/page.h>
+
+#include <asm/mach/map.h>
+
+#include "common.h"
+#include "devices.h"
+
+/* NOR flash */
+#define AUTCPU12_FLASH_BASE	(CS0_PHYS_BASE)
+
+/* Board specific hardware definitions */
+#define AUTCPU12_CHAR_LCD_BASE	(CS1_PHYS_BASE + 0x00000000)
+#define AUTCPU12_CSAUX1_BASE	(CS1_PHYS_BASE + 0x04000000)
+#define AUTCPU12_CAN_BASE	(CS1_PHYS_BASE + 0x08000000)
+#define AUTCPU12_TOUCH_BASE	(CS1_PHYS_BASE + 0x0a000000)
+#define AUTCPU12_IO_BASE	(CS1_PHYS_BASE + 0x0c000000)
+#define AUTCPU12_LPT_BASE	(CS1_PHYS_BASE + 0x0e000000)
+
+/* NVRAM */
+#define AUTCPU12_NVRAM_BASE	(CS1_PHYS_BASE + 0x02000000)
+
+/* SmartMedia flash */
+#define AUTCPU12_SMC_BASE	(CS1_PHYS_BASE + 0x06000000)
+#define AUTCPU12_SMC_SEL_BASE	(AUTCPU12_SMC_BASE + 0x10)
+
+/* Ethernet */
+#define AUTCPU12_CS8900_BASE	(CS2_PHYS_BASE + 0x300)
+#define AUTCPU12_CS8900_IRQ	(IRQ_EINT3)
+
+/* NAND flash */
+#define AUTCPU12_MMGPIO_BASE	(CLPS711X_NR_GPIO)
+#define AUTCPU12_SMC_NCE	(AUTCPU12_MMGPIO_BASE + 0) /* Bit 0 */
+#define AUTCPU12_SMC_RDY	CLPS711X_GPIO(1, 2)
+#define AUTCPU12_SMC_ALE	CLPS711X_GPIO(1, 3)
+#define AUTCPU12_SMC_CLE	CLPS711X_GPIO(1, 4)
+
+/* LCD contrast digital potentiometer */
+#define AUTCPU12_DPOT_CS	CLPS711X_GPIO(4, 0)
+#define AUTCPU12_DPOT_CLK	CLPS711X_GPIO(4, 1)
+#define AUTCPU12_DPOT_UD	CLPS711X_GPIO(4, 2)
+
+static struct resource autcpu12_cs8900_resource[] __initdata = {
+	DEFINE_RES_MEM(AUTCPU12_CS8900_BASE, SZ_1K),
+	DEFINE_RES_IRQ(AUTCPU12_CS8900_IRQ),
+};
+
+static struct resource autcpu12_nand_resource[] __initdata = {
+	DEFINE_RES_MEM(AUTCPU12_SMC_BASE, SZ_16),
+};
+
+static struct mtd_partition autcpu12_nand_parts[] __initdata = {
+	{
+		.name	= "Flash partition 1",
+		.offset	= 0,
+		.size	= SZ_8M,
+	},
+	{
+		.name	= "Flash partition 2",
+		.offset	= MTDPART_OFS_APPEND,
+		.size	= MTDPART_SIZ_FULL,
+	},
+};
+
+static void __init autcpu12_adjust_parts(struct gpio_nand_platdata *pdata,
+					 size_t sz)
+{
+	switch (sz) {
+	case SZ_16M:
+	case SZ_32M:
+		break;
+	case SZ_64M:
+	case SZ_128M:
+		pdata->parts[0].size = SZ_16M;
+		break;
+	default:
+		pr_warn("Unsupported SmartMedia device size %u\n", sz);
+		break;
+	}
+}
+
+static struct gpio_nand_platdata autcpu12_nand_pdata __initdata = {
+	.gpio_rdy	= AUTCPU12_SMC_RDY,
+	.gpio_nce	= AUTCPU12_SMC_NCE,
+	.gpio_ale	= AUTCPU12_SMC_ALE,
+	.gpio_cle	= AUTCPU12_SMC_CLE,
+	.gpio_nwp	= -1,
+	.chip_delay	= 20,
+	.parts		= autcpu12_nand_parts,
+	.num_parts	= ARRAY_SIZE(autcpu12_nand_parts),
+	.adjust_parts	= autcpu12_adjust_parts,
+};
+
+static struct platform_device autcpu12_nand_pdev __initdata = {
+	.name		= "gpio-nand",
+	.id		= -1,
+	.resource	= autcpu12_nand_resource,
+	.num_resources	= ARRAY_SIZE(autcpu12_nand_resource),
+	.dev		= {
+		.platform_data = &autcpu12_nand_pdata,
+	},
+};
+
+static struct resource autcpu12_mmgpio_resource[] __initdata = {
+	DEFINE_RES_MEM_NAMED(AUTCPU12_SMC_SEL_BASE, SZ_1, "dat"),
+};
+
+static struct bgpio_pdata autcpu12_mmgpio_pdata __initdata = {
+	.base	= AUTCPU12_MMGPIO_BASE,
+	.ngpio	= 8,
+};
+
+static struct platform_device autcpu12_mmgpio_pdev __initdata = {
+	.name		= "basic-mmio-gpio",
+	.id		= -1,
+	.resource	= autcpu12_mmgpio_resource,
+	.num_resources	= ARRAY_SIZE(autcpu12_mmgpio_resource),
+	.dev		= {
+		.platform_data = &autcpu12_mmgpio_pdata,
+	},
+};
+
+static const struct gpio autcpu12_gpios[] __initconst = {
+	{ AUTCPU12_DPOT_CS,	GPIOF_OUT_INIT_HIGH,	"DPOT CS" },
+	{ AUTCPU12_DPOT_CLK,	GPIOF_OUT_INIT_LOW,	"DPOT CLK" },
+	{ AUTCPU12_DPOT_UD,	GPIOF_OUT_INIT_LOW,	"DPOT UD" },
+};
+
+static struct mtd_partition autcpu12_flash_partitions[] = {
+	{
+		.name	= "NOR.0",
+		.offset	= 0,
+		.size	= MTDPART_SIZ_FULL,
+	},
+};
+
+static struct physmap_flash_data autcpu12_flash_pdata = {
+	.width		= 4,
+	.parts		= autcpu12_flash_partitions,
+	.nr_parts	= ARRAY_SIZE(autcpu12_flash_partitions),
+};
+
+static struct resource autcpu12_flash_resources[] __initdata = {
+	DEFINE_RES_MEM(AUTCPU12_FLASH_BASE, SZ_8M),
+};
+
+static struct platform_device autcpu12_flash_pdev __initdata = {
+	.name		= "physmap-flash",
+	.id		= 0,
+	.resource	= autcpu12_flash_resources,
+	.num_resources	= ARRAY_SIZE(autcpu12_flash_resources),
+	.dev		= {
+		.platform_data	= &autcpu12_flash_pdata,
+	},
+};
+
+static struct resource autcpu12_nvram_resource[] __initdata = {
+	DEFINE_RES_MEM(AUTCPU12_NVRAM_BASE, 0),
+};
+
+static struct platdata_mtd_ram autcpu12_nvram_pdata = {
+	.bankwidth	= 4,
+};
+
+static struct platform_device autcpu12_nvram_pdev __initdata = {
+	.name		= "mtd-ram",
+	.id		= 0,
+	.resource	= autcpu12_nvram_resource,
+	.num_resources	= ARRAY_SIZE(autcpu12_nvram_resource),
+	.dev		= {
+		.platform_data	= &autcpu12_nvram_pdata,
+	},
+};
+
+static void __init autcpu12_nvram_init(void)
+{
+	void __iomem *nvram;
+	unsigned int save[2];
+	resource_size_t nvram_size = SZ_128K;
+
+	/*
+	 * Check for 32K/128K
+	 * Read ofs 0K
+	 * Read ofs 64K
+	 * Write complement to ofs 64K
+	 * Read and check result on ofs 0K
+	 * Restore contents
+	 */
+	nvram = ioremap(autcpu12_nvram_resource[0].start, SZ_128K);
+	if (nvram) {
+		save[0] = readl(nvram + 0);
+		save[1] = readl(nvram + SZ_64K);
+		writel(~save[0], nvram + SZ_64K);
+		if (readl(nvram + 0) != save[0]) {
+			writel(save[0], nvram + 0);
+			nvram_size = SZ_32K;
+		} else
+			writel(save[1], nvram + SZ_64K);
+		iounmap(nvram);
+
+		autcpu12_nvram_resource[0].end =
+			autcpu12_nvram_resource[0].start + nvram_size - 1;
+		platform_device_register(&autcpu12_nvram_pdev);
+	} else
+		pr_err("Failed to remap NVRAM resource\n");
+}
+
+static void __init autcpu12_init(void)
+{
+	clps711x_devices_init();
+	platform_device_register(&autcpu12_flash_pdev);
+	platform_device_register_simple("video-clps711x", 0, NULL, 0);
+	platform_device_register_simple("cs89x0", 0, autcpu12_cs8900_resource,
+					ARRAY_SIZE(autcpu12_cs8900_resource));
+	platform_device_register(&autcpu12_mmgpio_pdev);
+	autcpu12_nvram_init();
+}
+
+static void __init autcpu12_init_late(void)
+{
+	gpio_request_array(autcpu12_gpios, ARRAY_SIZE(autcpu12_gpios));
+	platform_device_register(&autcpu12_nand_pdev);
+}
+
+MACHINE_START(AUTCPU12, "autronix autcpu12")
+	/* Maintainer: Thomas Gleixner */
+	.atag_offset	= 0x20000,
+	.map_io		= clps711x_map_io,
+	.init_irq	= clps711x_init_irq,
+	.init_time	= clps711x_timer_init,
+	.init_machine	= autcpu12_init,
+	.init_late	= autcpu12_init_late,
+	.restart	= clps711x_restart,
+MACHINE_END
+