1 // SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-2-Clause)
3 * libfdt - Flat Device Tree manipulation
4 * Copyright (C) 2006 David Gibson, IBM Corporation.
6 #include "libfdt_env.h"
11 #include "libfdt_internal.h"
13 int fdt_setprop_inplace_namelen_partial(void *fdt, int nodeoffset,
14 const char *name, int namelen,
15 uint32_t idx, const void *val,
21 propval = fdt_getprop_namelen_w(fdt, nodeoffset, name, namelen,
26 if ((unsigned)proplen < (len + idx))
27 return -FDT_ERR_NOSPACE;
29 memcpy((char *)propval + idx, val, len);
33 int fdt_setprop_inplace(void *fdt, int nodeoffset, const char *name,
34 const void *val, int len)
39 propval = fdt_getprop(fdt, nodeoffset, name, &proplen);
44 return -FDT_ERR_NOSPACE;
46 return fdt_setprop_inplace_namelen_partial(fdt, nodeoffset, name,
51 static void fdt_nop_region_(void *start, int len)
55 for (p = start; (char *)p < ((char *)start + len); p++)
56 *p = cpu_to_fdt32(FDT_NOP);
59 int fdt_nop_property(void *fdt, int nodeoffset, const char *name)
61 struct fdt_property *prop;
64 prop = fdt_get_property_w(fdt, nodeoffset, name, &len);
68 fdt_nop_region_(prop, len + sizeof(*prop));
73 int fdt_node_end_offset_(void *fdt, int offset)
77 while ((offset >= 0) && (depth >= 0))
78 offset = fdt_next_node(fdt, offset, &depth);
83 int fdt_nop_node(void *fdt, int nodeoffset)
87 endoffset = fdt_node_end_offset_(fdt, nodeoffset);
91 fdt_nop_region_(fdt_offset_ptr_w(fdt, nodeoffset, 0),
92 endoffset - nodeoffset);