lib/fdtdec_common.c

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