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, 164 insertions, 0 deletions

diff --git a/kernel/arch/avr32/boards/atstk1000/atstk1004.c b/kernel/arch/avr32/boards/atstk1000/atstk1004.c
new file mode 100644
index 000000000..69a9f0f08
--- /dev/null
+++ b/kernel/arch/avr32/boards/atstk1000/atstk1004.c
@@ -0,0 +1,164 @@
+/*
+ * ATSTK1003 daughterboard-specific init code
+ *
+ * Copyright (C) 2007 Atmel Corporation
+ *
+ * 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/clk.h>
+#include <linux/err.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <linux/string.h>
+#include <linux/types.h>
+
+#include <linux/spi/at73c213.h>
+#include <linux/spi/spi.h>
+#include <linux/atmel-mci.h>
+
+#include <video/atmel_lcdc.h>
+
+#include <asm/setup.h>
+
+#include <mach/at32ap700x.h>
+#include <mach/board.h>
+#include <mach/init.h>
+#include <mach/portmux.h>
+
+#include "atstk1000.h"
+
+/* Oscillator frequencies. These are board specific */
+unsigned long at32_board_osc_rates[3] = {
+	[0] = 32768,	/* 32.768 kHz on RTC osc */
+	[1] = 20000000,	/* 20 MHz on osc0 */
+	[2] = 12000000,	/* 12 MHz on osc1 */
+};
+
+#ifdef CONFIG_BOARD_ATSTK1000_EXTDAC
+static struct at73c213_board_info at73c213_data = {
+	.ssc_id		= 0,
+	.shortname	= "AVR32 STK1000 external DAC",
+};
+#endif
+
+#ifndef CONFIG_BOARD_ATSTK100X_SW1_CUSTOM
+static struct spi_board_info spi0_board_info[] __initdata = {
+#ifdef CONFIG_BOARD_ATSTK1000_EXTDAC
+	{
+		/* AT73C213 */
+		.modalias	= "at73c213",
+		.max_speed_hz	= 200000,
+		.chip_select	= 0,
+		.mode		= SPI_MODE_1,
+		.platform_data	= &at73c213_data,
+	},
+#endif
+	{
+		/* QVGA display */
+		.modalias	= "ltv350qv",
+		.max_speed_hz	= 16000000,
+		.chip_select	= 1,
+		.mode		= SPI_MODE_3,
+	},
+};
+#endif
+
+#ifdef CONFIG_BOARD_ATSTK100X_SPI1
+static struct spi_board_info spi1_board_info[] __initdata = { {
+	/* patch in custom entries here */
+} };
+#endif
+
+#ifndef CONFIG_BOARD_ATSTK100X_SW2_CUSTOM
+static struct mci_platform_data __initdata mci0_data = {
+	.slot[0] = {
+		.bus_width	= 4,
+		.detect_pin	= -ENODEV,
+		.wp_pin		= -ENODEV,
+	},
+};
+#endif
+
+#ifdef CONFIG_BOARD_ATSTK1000_EXTDAC
+static void __init atstk1004_setup_extdac(void)
+{
+	struct clk *gclk;
+	struct clk *pll;
+
+	gclk = clk_get(NULL, "gclk0");
+	if (IS_ERR(gclk))
+		goto err_gclk;
+	pll = clk_get(NULL, "pll0");
+	if (IS_ERR(pll))
+		goto err_pll;
+
+	if (clk_set_parent(gclk, pll)) {
+		pr_debug("STK1000: failed to set pll0 as parent for DAC clock\n");
+		goto err_set_clk;
+	}
+
+	at32_select_periph(GPIO_PIOA_BASE, (1 << 30), GPIO_PERIPH_A, 0);
+	at73c213_data.dac_clk = gclk;
+
+err_set_clk:
+	clk_put(pll);
+err_pll:
+	clk_put(gclk);
+err_gclk:
+	return;
+}
+#else
+static void __init atstk1004_setup_extdac(void)
+{
+
+}
+#endif /* CONFIG_BOARD_ATSTK1000_EXTDAC */
+
+void __init setup_board(void)
+{
+#ifdef	CONFIG_BOARD_ATSTK100X_SW2_CUSTOM
+	at32_map_usart(0, 1, 0);	/* USART 0/B: /dev/ttyS1, IRDA */
+#else
+	at32_map_usart(1, 0, 0);	/* USART 1/A: /dev/ttyS0, DB9 */
+#endif
+	/* USART 2/unused: expansion connector */
+	at32_map_usart(3, 2, 0);	/* USART 3/C: /dev/ttyS2, DB9 */
+
+	at32_setup_serial_console(0);
+}
+
+static int __init atstk1004_init(void)
+{
+#ifdef	CONFIG_BOARD_ATSTK100X_SW2_CUSTOM
+	at32_add_device_usart(1);
+#else
+	at32_add_device_usart(0);
+#endif
+	at32_add_device_usart(2);
+
+#ifndef CONFIG_BOARD_ATSTK100X_SW1_CUSTOM
+	at32_add_device_spi(0, spi0_board_info, ARRAY_SIZE(spi0_board_info));
+#endif
+#ifdef CONFIG_BOARD_ATSTK100X_SPI1
+	at32_add_device_spi(1, spi1_board_info, ARRAY_SIZE(spi1_board_info));
+#endif
+#ifndef CONFIG_BOARD_ATSTK100X_SW2_CUSTOM
+	at32_add_device_mci(0, &mci0_data);
+#endif
+	at32_add_device_lcdc(0, &atstk1000_lcdc_data,
+			     fbmem_start, fbmem_size,
+			     ATMEL_LCDC_PRI_24BIT | ATMEL_LCDC_PRI_CONTROL);
+	at32_add_device_usba(0, NULL);
+#ifndef CONFIG_BOARD_ATSTK100X_SW3_CUSTOM
+	at32_add_device_ssc(0, ATMEL_SSC_TX);
+#endif
+
+	atstk1000_setup_j2_leds();
+	atstk1004_setup_extdac();
+
+	return 0;
+}
+postcore_initcall(atstk1004_init);