2 * Definitions for building a device tree by calling into the
5 * Copyright (C) 2010 Andres Salomon <dilinger@queued.net>
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation; either version
10 * 2 of the License, or (at your option) any later version.
13 #ifndef _LINUX_OF_PDT_H
14 #define _LINUX_OF_PDT_H
16 /* overridable operations for calling into the PROM */
19 * buf should be 32 bytes; return 0 on success.
20 * If prev is NULL, the first property will be returned.
22 int (*nextprop
)(phandle node
, char *prev
, char *buf
);
24 /* for both functions, return proplen on success; -1 on error */
25 int (*getproplen
)(phandle node
, const char *prop
);
26 int (*getproperty
)(phandle node
, const char *prop
, char *buf
,
29 /* phandles are 0 if no child or sibling exists */
30 phandle (*getchild
)(phandle parent
);
31 phandle (*getsibling
)(phandle node
);
33 /* return 0 on success; fill in 'len' with number of bytes in path */
34 int (*pkg2path
)(phandle node
, char *buf
, const int buflen
, int *len
);
37 extern void *prom_early_alloc(unsigned long size
);
39 /* for building the device tree */
40 extern void of_pdt_build_devicetree(phandle root_node
, struct of_pdt_ops
*ops
);
42 extern void (*of_pdt_build_more
)(struct device_node
*dp
,
43 struct device_node
***nextp
);
45 #endif /* _LINUX_OF_PDT_H */
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