lib/fdtdec_common.c

   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 }