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fdt: Add fdtdec_get_uint64 to decode a 64-bit value from a property

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It decodes a 64-bit value from a property that is at least 8 bytes long.

Signed-off-by: Che-Liang Chiou <clchiou@chromium.org>

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Che-Liang Chiou
2012-10-25 16:31:05 +00:00
committed by Gerald Van Baren
parent 79289c0b5f
commit aadef0a1bc
2 changed files with 28 additions and 0 deletions
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13
lib/fdtdec.c
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@@ -111,6 +111,19 @@ s32 fdtdec_get_int(const void *blob, int node, const char *prop_name,
return default_val;
}
uint64_t fdtdec_get_uint64(const void *blob, int node, const char *prop_name,
uint64_t default_val)
{
const uint64_t *cell64;
int length;
cell64 = fdt_getprop(blob, node, prop_name, &length);
if (!cell64 || length < sizeof(*cell64))
return default_val;
return fdt64_to_cpu(*cell64);
}
int fdtdec_get_is_enabled(const void *blob, int node)
{
const char *cell;