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, 115 insertions, 0 deletions

diff --git a/kernel/drivers/pcmcia/sa1111_jornada720.c b/kernel/drivers/pcmcia/sa1111_jornada720.c
new file mode 100644
index 000000000..c2c30580c
--- /dev/null
+++ b/kernel/drivers/pcmcia/sa1111_jornada720.c
@@ -0,0 +1,115 @@
+/*
+ * drivers/pcmcia/sa1100_jornada720.c
+ *
+ * Jornada720 PCMCIA specific routines
+ *
+ */
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/device.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/io.h>
+
+#include <mach/hardware.h>
+#include <asm/hardware/sa1111.h>
+#include <asm/mach-types.h>
+
+#include "sa1111_generic.h"
+
+/* Does SOCKET1_3V actually do anything? */
+#define SOCKET0_POWER	GPIO_GPIO0
+#define SOCKET0_3V	GPIO_GPIO2
+#define SOCKET1_POWER	(GPIO_GPIO1 | GPIO_GPIO3)
+#define SOCKET1_3V	GPIO_GPIO3
+
+static int
+jornada720_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, const socket_state_t *state)
+{
+	struct sa1111_pcmcia_socket *s = to_skt(skt);
+	unsigned int pa_dwr_mask, pa_dwr_set;
+	int ret;
+
+	printk(KERN_INFO "%s(): config socket %d vcc %d vpp %d\n", __func__,
+		skt->nr, state->Vcc, state->Vpp);
+
+	switch (skt->nr) {
+	case 0:
+		pa_dwr_mask = SOCKET0_POWER | SOCKET0_3V;
+
+		switch (state->Vcc) {
+		default:
+		case  0:
+			pa_dwr_set = 0;
+			break;
+		case 33:
+			pa_dwr_set = SOCKET0_POWER | SOCKET0_3V;
+			break;
+		case 50:
+			pa_dwr_set = SOCKET0_POWER;
+			break;
+		}
+		break;
+
+	case 1:
+		pa_dwr_mask = SOCKET1_POWER;
+
+		switch (state->Vcc) {
+		default:
+		case 0:
+			pa_dwr_set = 0;
+			break;
+		case 33:
+			pa_dwr_set = SOCKET1_POWER;
+			break;
+		case 50:
+			pa_dwr_set = SOCKET1_POWER;
+			break;
+		}
+		break;
+
+	default:
+		return -1;
+	}
+
+	if (state->Vpp != state->Vcc && state->Vpp != 0) {
+		printk(KERN_ERR "%s(): slot cannot support VPP %u\n",
+			__func__, state->Vpp);
+		return -EPERM;
+	}
+
+	ret = sa1111_pcmcia_configure_socket(skt, state);
+	if (ret == 0)
+		sa1111_set_io(s->dev, pa_dwr_mask, pa_dwr_set);
+
+	return ret;
+}
+
+static struct pcmcia_low_level jornada720_pcmcia_ops = {
+	.owner			= THIS_MODULE,
+	.configure_socket	= jornada720_pcmcia_configure_socket,
+	.first			= 0,
+	.nr			= 2,
+};
+
+int pcmcia_jornada720_init(struct sa1111_dev *sadev)
+{
+	int ret = -ENODEV;
+
+	if (machine_is_jornada720()) {
+		unsigned int pin = GPIO_A0 | GPIO_A1 | GPIO_A2 | GPIO_A3;
+
+		GRER |= 0x00000002;
+
+		/* Set GPIO_A<3:1> to be outputs for PCMCIA/CF power controller: */
+		sa1111_set_io_dir(sadev, pin, 0, 0);
+		sa1111_set_io(sadev, pin, 0);
+		sa1111_set_sleep_io(sadev, pin, 0);
+
+		sa11xx_drv_pcmcia_ops(&jornada720_pcmcia_ops);
+		ret = sa1111_pcmcia_add(sadev, &jornada720_pcmcia_ops,
+				sa11xx_drv_pcmcia_add_one);
+	}
+
+	return ret;
+}