zte's code,first commit

Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/os/linux/linux-3.4.x/arch/arm/mach-ux500/devices-common.c b/ap/os/linux/linux-3.4.x/arch/arm/mach-ux500/devices-common.c
new file mode 100644
index 0000000..c5312a4
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/arch/arm/mach-ux500/devices-common.c
@@ -0,0 +1,94 @@
+/*
+ * Copyright (C) ST-Ericsson SA 2010
+ *
+ * Author: Rabin Vincent <rabin.vincent@stericsson.com> for ST-Ericsson
+ * License terms: GNU General Public License (GPL), version 2.
+ */
+
+#include <linux/kernel.h>
+#include <linux/dma-mapping.h>
+#include <linux/err.h>
+#include <linux/irq.h>
+#include <linux/slab.h>
+#include <linux/platform_device.h>
+#include <linux/amba/bus.h>
+
+#include <plat/gpio-nomadik.h>
+
+#include <mach/hardware.h>
+
+#include "devices-common.h"
+
+struct amba_device *
+dbx500_add_amba_device(struct device *parent, const char *name,
+		       resource_size_t base, int irq, void *pdata,
+		       unsigned int periphid)
+{
+	struct amba_device *dev;
+	int ret;
+
+	dev = amba_device_alloc(name, base, SZ_4K);
+	if (!dev)
+		return ERR_PTR(-ENOMEM);
+
+	dev->dma_mask = DMA_BIT_MASK(32);
+	dev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
+
+	dev->irq[0] = irq;
+
+	dev->periphid = periphid;
+
+	dev->dev.platform_data = pdata;
+
+	dev->dev.parent = parent;
+
+	ret = amba_device_add(dev, &iomem_resource);
+	if (ret) {
+		amba_device_put(dev);
+		return ERR_PTR(ret);
+	}
+
+	return dev;
+}
+
+static struct platform_device *
+dbx500_add_gpio(struct device *parent, int id, resource_size_t addr, int irq,
+		struct nmk_gpio_platform_data *pdata)
+{
+	struct resource resources[] = {
+		{
+			.start	= addr,
+			.end	= addr + 127,
+			.flags	= IORESOURCE_MEM,
+		},
+		{
+			.start	= irq,
+			.end	= irq,
+			.flags	= IORESOURCE_IRQ,
+		}
+	};
+
+	return platform_device_register_resndata(
+		parent,
+		"gpio",
+		id,
+		resources,
+		ARRAY_SIZE(resources),
+		pdata,
+		sizeof(*pdata));
+}
+
+void dbx500_add_gpios(struct device *parent, resource_size_t *base, int num,
+		      int irq, struct nmk_gpio_platform_data *pdata)
+{
+	int first = 0;
+	int i;
+
+	for (i = 0; i < num; i++, first += 32, irq++) {
+		pdata->first_gpio = first;
+		pdata->first_irq = NOMADIK_GPIO_TO_IRQ(first);
+		pdata->num_gpio = 32;
+
+		dbx500_add_gpio(parent, i, base[i], irq, pdata);
+	}
+}