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,
23 struct device_node *node,
24 struct mtd_partition **pparts)
27 struct device_node *pp;
30 /* First count the subnodes */
33 while ((pp = of_get_next_child(node, pp)))
39 *pparts = kzalloc(nr_parts * sizeof(**pparts), GFP_KERNEL);
45 while ((pp = of_get_next_child(node, pp))) {
49 /* check if this is a partition node */
50 partname = of_get_property(pp, "name", &len);
51 if (strcmp(partname, "partition") != 0) {
56 reg = of_get_property(pp, "reg", &len);
57 if (!reg || (len != 2 * sizeof(u32))) {
59 dev_err(dev, "Invalid 'reg' on %s\n", node->full_name);
64 (*pparts)[i].offset = reg[0];
65 (*pparts)[i].size = reg[1];
67 partname = of_get_property(pp, "label", &len);
69 partname = of_get_property(pp, "name", &len);
70 (*pparts)[i].name = (char *)partname;
72 if (of_get_property(pp, "read-only", &len))
73 (*pparts)[i].mask_flags = MTD_WRITEABLE;
80 EXPORT_SYMBOL(of_mtd_parse_partitions);
82 MODULE_LICENSE("GPL");