2 * libfdt - Flat Device Tree manipulation
3 * Copyright (C) 2006 David Gibson, IBM Corporation.
4 * SPDX-License-Identifier: GPL-2.0+ BSD-2-Clause
6 #include <libfdt_env.h>
15 #include "libfdt_internal.h"
17 int fdt_setprop_inplace_namelen_partial(void *fdt, int nodeoffset,
18 const char *name, int namelen,
19 uint32_t idx, const void *val,
25 propval = fdt_getprop_namelen_w(fdt, nodeoffset, name, namelen,
30 if (proplen < (len + idx))
31 return -FDT_ERR_NOSPACE;
33 memcpy((char *)propval + idx, val, len);
37 int fdt_setprop_inplace(void *fdt, int nodeoffset, const char *name,
38 const void *val, int len)
43 propval = fdt_getprop(fdt, nodeoffset, name, &proplen);
48 return -FDT_ERR_NOSPACE;
50 return fdt_setprop_inplace_namelen_partial(fdt, nodeoffset, name,
55 static void _fdt_nop_region(void *start, int len)
59 for (p = start; (char *)p < ((char *)start + len); p++)
60 *p = cpu_to_fdt32(FDT_NOP);
63 int fdt_nop_property(void *fdt, int nodeoffset, const char *name)
65 struct fdt_property *prop;
68 prop = fdt_get_property_w(fdt, nodeoffset, name, &len);
72 _fdt_nop_region(prop, len + sizeof(*prop));
77 int _fdt_node_end_offset(void *fdt, int offset)
81 while ((offset >= 0) && (depth >= 0))
82 offset = fdt_next_node(fdt, offset, &depth);
87 int fdt_nop_node(void *fdt, int nodeoffset)
91 endoffset = _fdt_node_end_offset(fdt, nodeoffset);
95 _fdt_nop_region(fdt_offset_ptr_w(fdt, nodeoffset, 0),
96 endoffset - nodeoffset);