zte's code,first commit

Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/os/linux/linux-3.4.x/drivers/mtd/maps/rpxlite.c b/ap/os/linux/linux-3.4.x/drivers/mtd/maps/rpxlite.c
new file mode 100644
index 0000000..ed88225
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/drivers/mtd/maps/rpxlite.c
@@ -0,0 +1,64 @@
+/*
+ * Handle mapping of the flash on the RPX Lite and CLLF boards
+ */
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <asm/io.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/map.h>
+
+
+#define WINDOW_ADDR 0xfe000000
+#define WINDOW_SIZE 0x800000
+
+static struct mtd_info *mymtd;
+
+static struct map_info rpxlite_map = {
+	.name = "RPX",
+	.size = WINDOW_SIZE,
+	.bankwidth = 4,
+	.phys = WINDOW_ADDR,
+};
+
+static int __init init_rpxlite(void)
+{
+	printk(KERN_NOTICE "RPX Lite or CLLF flash device: %x at %x\n", WINDOW_SIZE*4, WINDOW_ADDR);
+	rpxlite_map.virt = ioremap(WINDOW_ADDR, WINDOW_SIZE * 4);
+
+	if (!rpxlite_map.virt) {
+		printk("Failed to ioremap\n");
+		return -EIO;
+	}
+	simple_map_init(&rpxlite_map);
+	mymtd = do_map_probe("cfi_probe", &rpxlite_map);
+	if (mymtd) {
+		mymtd->owner = THIS_MODULE;
+		mtd_device_register(mymtd, NULL, 0);
+		return 0;
+	}
+
+	iounmap((void *)rpxlite_map.virt);
+	return -ENXIO;
+}
+
+static void __exit cleanup_rpxlite(void)
+{
+	if (mymtd) {
+		mtd_device_unregister(mymtd);
+		map_destroy(mymtd);
+	}
+	if (rpxlite_map.virt) {
+		iounmap((void *)rpxlite_map.virt);
+		rpxlite_map.virt = 0;
+	}
+}
+
+module_init(init_rpxlite);
+module_exit(cleanup_rpxlite);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Arnold Christensen <AKC@pel.dk>");
+MODULE_DESCRIPTION("MTD map driver for RPX Lite and CLLF boards");