From aadef0a1bc3db81708471c9d18eb6c756659196f Mon Sep 17 00:00:00 2001 From: Che-Liang Chiou Date: Thu, 25 Oct 2012 16:31:05 +0000 Subject: fdt: Add fdtdec_get_uint64 to decode a 64-bit value from a property It decodes a 64-bit value from a property that is at least 8 bytes long. Signed-off-by: Che-Liang Chiou Signed-off-by: Simon Glass --- lib/fdtdec.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'lib/fdtdec.c') diff --git a/lib/fdtdec.c b/lib/fdtdec.c index da12df2..150512e 100644 --- a/lib/fdtdec.c +++ b/lib/fdtdec.c @@ -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; -- cgit v1.1