2 * Flash partitions described by the OF (or flattened) device tree
4 * Copyright (C) 2006 MontaVista Software Inc.
5 * Author: Vitaly Wool <vwool@ru.mvista.com>
7 * Revised to handle newer style flash binding by:
8 * Copyright (C) 2007 David Gibson, IBM Corporation.
10 * This program is free software; you can redistribute it and/or modify it
11 * under the terms of the GNU General Public License as published by the
12 * Free Software Foundation; either version 2 of the License, or (at your
13 * option) any later version.
16 #include <linux/module.h>
17 #include <linux/init.h>
19 #include <linux/mtd/mtd.h>
20 #include <linux/mtd/partitions.h>
22 int __devinit of_mtd_parse_partitions(struct device *dev,
24 struct device_node *node,
25 struct mtd_partition **pparts)
28 struct device_node *pp;
31 /* First count the subnodes */
34 while ((pp = of_get_next_child(node, pp)))
40 *pparts = kzalloc(nr_parts * sizeof(**pparts), GFP_KERNEL);
46 while ((pp = of_get_next_child(node, pp))) {
50 reg = of_get_property(pp, "reg", &len);
51 if (!reg || (len != 2 * sizeof(u32))) {
53 dev_err(dev, "Invalid 'reg' on %s\n", node->full_name);
58 (*pparts)[i].offset = reg[0];
59 (*pparts)[i].size = reg[1];
61 partname = of_get_property(pp, "label", &len);
63 partname = of_get_property(pp, "name", &len);
64 (*pparts)[i].name = (char *)partname;
66 if (of_get_property(pp, "read-only", &len))
67 (*pparts)[i].mask_flags = MTD_WRITEABLE;
74 EXPORT_SYMBOL(of_mtd_parse_partitions);