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68 lines
1.3 KiB
C
68 lines
1.3 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (c) 2014
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* Heiko Schocher, DENX Software Engineering, hs@denx.de.
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*
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* Based on lib/fdtdec.c:
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* Copyright (c) 2011 The Chromium OS Authors.
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*/
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#ifndef USE_HOSTCC
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#include <common.h>
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#include <log.h>
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#include <linux/libfdt.h>
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#include <fdtdec.h>
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#else
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#include "libfdt.h"
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#include "fdt_support.h"
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#define debug(...)
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#endif
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int fdtdec_get_int(const void *blob, int node, const char *prop_name,
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int default_val)
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{
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const int *cell;
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int len;
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debug("%s: %s: ", __func__, prop_name);
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cell = fdt_getprop(blob, node, prop_name, &len);
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if (cell && len >= sizeof(int)) {
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int val = fdt32_to_cpu(cell[0]);
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debug("%#x (%d)\n", val, val);
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return val;
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}
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debug("(not found)\n");
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return default_val;
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}
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unsigned int fdtdec_get_uint(const void *blob, int node, const char *prop_name,
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unsigned int default_val)
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{
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const int *cell;
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int len;
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debug("%s: %s: ", __func__, prop_name);
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cell = fdt_getprop(blob, node, prop_name, &len);
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if (cell && len >= sizeof(unsigned int)) {
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unsigned int val = fdt32_to_cpu(cell[0]);
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debug("%#x (%d)\n", val, val);
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return val;
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}
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debug("(not found)\n");
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return default_val;
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}
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int fdtdec_get_child_count(const void *blob, int node)
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{
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int subnode;
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int num = 0;
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fdt_for_each_subnode(subnode, blob, node)
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num++;
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return num;
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}
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