imx233: add stub nand driver

Change-Id: I6ed3d274b27eb56afb8289cba1b11bceb74bac12

firmware/target/arm/imx233/nand-imx233.c

@@ -0,0 +1,79 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2011 by Amaury Pouly
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+#include "config.h"
+#include "system.h"
+#include "gpmi-imx233.h"
+#include "pinctrl-imx233.h"
+#include "button-target.h"
+#include "fat.h"
+#include "disk.h"
+#include "usb.h"
+#include "debug.h"
+#include "nand.h"
+#include "storage.h"
+
+static int nand_first_drive;
+
+int nand_init(void)
+{
+    return -1;
+}
+int nand_read_sectors(IF_MD2(int drive,) unsigned long start, int count,
+                     void* buf)
+{
+    return -1;
+}
+
+int nand_write_sectors(IF_MD2(int drive,) unsigned long start, int count,
+                     const void* buf)
+{
+    return -1;
+}
+
+int nand_num_drives(int first_drive)
+{
+    nand_first_drive = first_drive;
+    return 1;
+}
+
+void nand_get_info(IF_MD2(int drive,) struct storage_info *info)
+{
+    IF_MD((void)drive);
+    info->sector_size = SECTOR_SIZE;
+    info->num_sectors = 0;
+    info->vendor = "";
+    info->product = "";
+    info->revision = "";
+}
+
+/*
+bool nand_present(IF_MD(int drive))
+{
+    IF_MD((void) drive);
+    return true;
+}
+
+bool nand_removable(IF_MD(int drive))
+{
+    IF_MD((void) drive);
+    return false;
+}
+*/