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Diffstat (limited to 'board/bf537-stamp/bf537-stamp.c')
-rw-r--r--board/bf537-stamp/bf537-stamp.c17
1 files changed, 17 insertions, 0 deletions
diff --git a/board/bf537-stamp/bf537-stamp.c b/board/bf537-stamp/bf537-stamp.c
index b3d8bda..6954b30 100644
--- a/board/bf537-stamp/bf537-stamp.c
+++ b/board/bf537-stamp/bf537-stamp.c
@@ -30,8 +30,25 @@
#include <command.h>
#include <asm/blackfin.h>
#include <asm/io.h>
+#include <net.h>
#include "ether_bf537.h"
+/**
+ * is_valid_ether_addr - Determine if the given Ethernet address is valid
+ * @addr: Pointer to a six-byte array containing the Ethernet address
+ *
+ * Check that the Ethernet address (MAC) is not 00:00:00:00:00:00, is not
+ * a multicast address, and is not FF:FF:FF:FF:FF:FF.
+ *
+ * Return true if the address is valid.
+ */
+static inline int is_valid_ether_addr(const u8 * addr)
+{
+ /* FF:FF:FF:FF:FF:FF is a multicast address so we don't need to
+ * explicitly check for it here. */
+ return !is_multicast_ether_addr(addr) && !is_zero_ether_addr(addr);
+}
+
DECLARE_GLOBAL_DATA_PTR;
#define POST_WORD_ADDR 0xFF903FFC