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, 315 insertions, 0 deletions

diff --git a/kernel/arch/arm/mach-mmp/ttc_dkb.c b/kernel/arch/arm/mach-mmp/ttc_dkb.c
new file mode 100644
index 000000000..ac4af81de
--- /dev/null
+++ b/kernel/arch/arm/mach-mmp/ttc_dkb.c
@@ -0,0 +1,315 @@
+/*
+ *  linux/arch/arm/mach-mmp/ttc_dkb.c
+ *
+ *  Support for the Marvell PXA910-based TTC_DKB Development Platform.
+ *
+ *  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
+ *  publishhed by the Free Software Foundation.
+ */
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/mtd/onenand.h>
+#include <linux/interrupt.h>
+#include <linux/platform_data/pca953x.h>
+#include <linux/gpio.h>
+#include <linux/gpio-pxa.h>
+#include <linux/mfd/88pm860x.h>
+#include <linux/platform_data/mv_usb.h>
+#include <linux/spi/spi.h>
+#include <linux/delay.h>
+
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/flash.h>
+#include <mach/addr-map.h>
+#include <mach/mfp-pxa910.h>
+#include <mach/pxa910.h>
+#include <mach/irqs.h>
+#include <mach/regs-usb.h>
+
+#include "common.h"
+
+#define TTCDKB_GPIO_EXT0(x)	(MMP_NR_BUILTIN_GPIO + ((x < 0) ? 0 :	\
+				((x < 16) ? x : 15)))
+#define TTCDKB_GPIO_EXT1(x)	(MMP_NR_BUILTIN_GPIO + 16 + ((x < 0) ? 0 : \
+				((x < 16) ? x : 15)))
+
+/*
+ * 16 board interrupts -- MAX7312 GPIO expander
+ * 16 board interrupts -- PCA9575 GPIO expander
+ * 24 board interrupts -- 88PM860x PMIC
+ */
+#define TTCDKB_NR_IRQS		(MMP_NR_IRQS + 16 + 16 + 24)
+
+static unsigned long ttc_dkb_pin_config[] __initdata = {
+	/* UART2 */
+	GPIO47_UART2_RXD,
+	GPIO48_UART2_TXD,
+
+	/* DFI */
+	DF_IO0_ND_IO0,
+	DF_IO1_ND_IO1,
+	DF_IO2_ND_IO2,
+	DF_IO3_ND_IO3,
+	DF_IO4_ND_IO4,
+	DF_IO5_ND_IO5,
+	DF_IO6_ND_IO6,
+	DF_IO7_ND_IO7,
+	DF_IO8_ND_IO8,
+	DF_IO9_ND_IO9,
+	DF_IO10_ND_IO10,
+	DF_IO11_ND_IO11,
+	DF_IO12_ND_IO12,
+	DF_IO13_ND_IO13,
+	DF_IO14_ND_IO14,
+	DF_IO15_ND_IO15,
+	DF_nCS0_SM_nCS2_nCS0,
+	DF_ALE_SM_WEn_ND_ALE,
+	DF_CLE_SM_OEn_ND_CLE,
+	DF_WEn_DF_WEn,
+	DF_REn_DF_REn,
+	DF_RDY0_DF_RDY0,
+};
+
+static struct pxa_gpio_platform_data pxa910_gpio_pdata = {
+	.irq_base	= MMP_GPIO_TO_IRQ(0),
+};
+
+static struct mtd_partition ttc_dkb_onenand_partitions[] = {
+	{
+		.name		= "bootloader",
+		.offset		= 0,
+		.size		= SZ_1M,
+		.mask_flags	= MTD_WRITEABLE,
+	}, {
+		.name		= "reserved",
+		.offset		= MTDPART_OFS_APPEND,
+		.size		= SZ_128K,
+		.mask_flags	= MTD_WRITEABLE,
+	}, {
+		.name		= "reserved",
+		.offset		= MTDPART_OFS_APPEND,
+		.size		= SZ_8M,
+		.mask_flags	= MTD_WRITEABLE,
+	}, {
+		.name		= "kernel",
+		.offset		= MTDPART_OFS_APPEND,
+		.size		= (SZ_2M + SZ_1M),
+		.mask_flags	= 0,
+	}, {
+		.name		= "filesystem",
+		.offset		= MTDPART_OFS_APPEND,
+		.size		= SZ_32M + SZ_16M,
+		.mask_flags	= 0,
+	}
+};
+
+static struct onenand_platform_data ttc_dkb_onenand_info = {
+	.parts		= ttc_dkb_onenand_partitions,
+	.nr_parts	= ARRAY_SIZE(ttc_dkb_onenand_partitions),
+};
+
+static struct resource ttc_dkb_resource_onenand[] = {
+	[0] = {
+		.start	= SMC_CS0_PHYS_BASE,
+		.end	= SMC_CS0_PHYS_BASE + SZ_1M,
+		.flags	= IORESOURCE_MEM,
+	},
+};
+
+static struct platform_device ttc_dkb_device_onenand = {
+	.name		= "onenand-flash",
+	.id		= -1,
+	.resource	= ttc_dkb_resource_onenand,
+	.num_resources	= ARRAY_SIZE(ttc_dkb_resource_onenand),
+	.dev		= {
+		.platform_data	= &ttc_dkb_onenand_info,
+	},
+};
+
+static struct platform_device *ttc_dkb_devices[] = {
+	&pxa910_device_gpio,
+	&pxa910_device_rtc,
+	&ttc_dkb_device_onenand,
+};
+
+static struct pca953x_platform_data max7312_data[] = {
+	{
+		.gpio_base	= TTCDKB_GPIO_EXT0(0),
+		.irq_base	= MMP_NR_IRQS,
+	},
+};
+
+static struct pm860x_platform_data ttc_dkb_pm8607_info = {
+	.irq_base       = IRQ_BOARD_START,
+};
+
+static struct i2c_board_info ttc_dkb_i2c_info[] = {
+	{
+		.type           = "88PM860x",
+		.addr           = 0x34,
+		.platform_data  = &ttc_dkb_pm8607_info,
+		.irq            = IRQ_PXA910_PMIC_INT,
+	},
+	{
+		.type		= "max7312",
+		.addr		= 0x23,
+		.irq		= MMP_GPIO_TO_IRQ(80),
+		.platform_data	= &max7312_data,
+	},
+};
+
+#if IS_ENABLED(CONFIG_USB_SUPPORT)
+#if IS_ENABLED(CONFIG_USB_MV_UDC) || IS_ENABLED(CONFIG_USB_EHCI_MV_U2O)
+
+static struct mv_usb_platform_data ttc_usb_pdata = {
+	.vbus		= NULL,
+	.mode		= MV_USB_MODE_OTG,
+	.otg_force_a_bus_req = 1,
+	.phy_init	= pxa_usb_phy_init,
+	.phy_deinit	= pxa_usb_phy_deinit,
+	.set_vbus	= NULL,
+};
+#endif
+#endif
+
+#if IS_ENABLED(CONFIG_MTD_NAND_PXA3xx)
+static struct pxa3xx_nand_platform_data dkb_nand_info = {
+	.enable_arbiter = 1,
+	.num_cs = 1,
+};
+#endif
+
+#if IS_ENABLED(CONFIG_MMP_DISP)
+/* path config */
+#define CFG_IOPADMODE(iopad)   (iopad)  /* 0x0 ~ 0xd */
+#define SCLK_SOURCE_SELECT(x)  (x << 30) /* 0x0 ~ 0x3 */
+/* link config */
+#define CFG_DUMBMODE(mode)     (mode << 28) /* 0x0 ~ 0x6*/
+static struct mmp_mach_path_config dkb_disp_config[] = {
+	[0] = {
+		.name = "mmp-parallel",
+		.overlay_num = 2,
+		.output_type = PATH_OUT_PARALLEL,
+		.path_config = CFG_IOPADMODE(0x1)
+			| SCLK_SOURCE_SELECT(0x1),
+		.link_config = CFG_DUMBMODE(0x2),
+	},
+};
+
+static struct mmp_mach_plat_info dkb_disp_info = {
+	.name = "mmp-disp",
+	.clk_name = "disp0",
+	.path_num = 1,
+	.paths = dkb_disp_config,
+};
+
+static struct mmp_buffer_driver_mach_info dkb_fb_info = {
+	.name = "mmp-fb",
+	.path_name = "mmp-parallel",
+	.overlay_id = 0,
+	.dmafetch_id = 1,
+	.default_pixfmt = PIXFMT_RGB565,
+};
+
+static void dkb_tpo_panel_power(int on)
+{
+	int err;
+	u32 spi_reset = mfp_to_gpio(MFP_PIN_GPIO106);
+
+	if (on) {
+		err = gpio_request(spi_reset, "TPO_LCD_SPI_RESET");
+		if (err) {
+			pr_err("failed to request GPIO for TPO LCD RESET\n");
+			return;
+		}
+		gpio_direction_output(spi_reset, 0);
+		udelay(100);
+		gpio_set_value(spi_reset, 1);
+		gpio_free(spi_reset);
+	} else {
+		err = gpio_request(spi_reset, "TPO_LCD_SPI_RESET");
+		if (err) {
+			pr_err("failed to request LCD RESET gpio\n");
+			return;
+		}
+		gpio_set_value(spi_reset, 0);
+		gpio_free(spi_reset);
+	}
+}
+
+static struct mmp_mach_panel_info dkb_tpo_panel_info = {
+	.name = "tpo-hvga",
+	.plat_path_name = "mmp-parallel",
+	.plat_set_onoff = dkb_tpo_panel_power,
+};
+
+static struct spi_board_info spi_board_info[] __initdata = {
+	{
+		.modalias       = "tpo-hvga",
+		.platform_data  = &dkb_tpo_panel_info,
+		.bus_num        = 5,
+	}
+};
+
+static void __init add_disp(void)
+{
+	pxa_register_device(&pxa910_device_disp,
+		&dkb_disp_info, sizeof(dkb_disp_info));
+	spi_register_board_info(spi_board_info, ARRAY_SIZE(spi_board_info));
+	pxa_register_device(&pxa910_device_fb,
+		&dkb_fb_info, sizeof(dkb_fb_info));
+	pxa_register_device(&pxa910_device_panel,
+		&dkb_tpo_panel_info, sizeof(dkb_tpo_panel_info));
+}
+#endif
+
+static void __init ttc_dkb_init(void)
+{
+	mfp_config(ARRAY_AND_SIZE(ttc_dkb_pin_config));
+
+	/* on-chip devices */
+	pxa910_add_uart(1);
+#if IS_ENABLED(CONFIG_MTD_NAND_PXA3xx)
+	pxa910_add_nand(&dkb_nand_info);
+#endif
+
+	/* off-chip devices */
+	pxa910_add_twsi(0, NULL, ARRAY_AND_SIZE(ttc_dkb_i2c_info));
+	platform_device_add_data(&pxa910_device_gpio, &pxa910_gpio_pdata,
+				 sizeof(struct pxa_gpio_platform_data));
+	platform_add_devices(ARRAY_AND_SIZE(ttc_dkb_devices));
+
+#if IS_ENABLED(CONFIG_USB_MV_UDC)
+	pxa168_device_u2o.dev.platform_data = &ttc_usb_pdata;
+	platform_device_register(&pxa168_device_u2o);
+#endif
+
+#if IS_ENABLED(CONFIG_USB_EHCI_MV_U2O)
+	pxa168_device_u2oehci.dev.platform_data = &ttc_usb_pdata;
+	platform_device_register(&pxa168_device_u2oehci);
+#endif
+
+#if IS_ENABLED(CONFIG_USB_MV_OTG)
+	pxa168_device_u2ootg.dev.platform_data = &ttc_usb_pdata;
+	platform_device_register(&pxa168_device_u2ootg);
+#endif
+
+#if IS_ENABLED(CONFIG_MMP_DISP)
+	add_disp();
+#endif
+}
+
+MACHINE_START(TTC_DKB, "PXA910-based TTC_DKB Development Platform")
+	.map_io		= mmp_map_io,
+	.nr_irqs	= TTCDKB_NR_IRQS,
+	.init_irq       = pxa910_init_irq,
+	.init_time	= pxa910_timer_init,
+	.init_machine   = ttc_dkb_init,
+	.restart	= mmp_restart,
+MACHINE_END