xref: /openbmc/u-boot/lib/fdtdec_common.c (revision 1a68faac)
1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * Copyright (c) 2014
4  * Heiko Schocher, DENX Software Engineering, hs@denx.de.
5  *
6  * Based on lib/fdtdec.c:
7  * Copyright (c) 2011 The Chromium OS Authors.
8  */
9 
10 #ifndef USE_HOSTCC
11 #include <common.h>
12 #include <linux/libfdt.h>
13 #include <fdtdec.h>
14 #else
15 #include "libfdt.h"
16 #include "fdt_support.h"
17 
18 #define debug(...)
19 #endif
20 
21 int fdtdec_get_int(const void *blob, int node, const char *prop_name,
22 		int default_val)
23 {
24 	const int *cell;
25 	int len;
26 
27 	debug("%s: %s: ", __func__, prop_name);
28 	cell = fdt_getprop(blob, node, prop_name, &len);
29 	if (cell && len >= sizeof(int)) {
30 		int val = fdt32_to_cpu(cell[0]);
31 
32 		debug("%#x (%d)\n", val, val);
33 		return val;
34 	}
35 	debug("(not found)\n");
36 	return default_val;
37 }
38 
39 unsigned int fdtdec_get_uint(const void *blob, int node, const char *prop_name,
40 			unsigned int default_val)
41 {
42 	const int *cell;
43 	int len;
44 
45 	debug("%s: %s: ", __func__, prop_name);
46 	cell = fdt_getprop(blob, node, prop_name, &len);
47 	if (cell && len >= sizeof(unsigned int)) {
48 		unsigned int val = fdt32_to_cpu(cell[0]);
49 
50 		debug("%#x (%d)\n", val, val);
51 		return val;
52 	}
53 	debug("(not found)\n");
54 	return default_val;
55 }
56