ColdFire: Fix FEC transmit issue for MCF5275
Signed-off-by: TsiChung Liew <Tsi-Chung.Liew@freescale.com>
Signed-off-by: Ben Warren <biggerbadderben@gmail.com>
diff --git a/drivers/net/mcffec.c b/drivers/net/mcffec.c
index 3b81258..71d1960 100644
--- a/drivers/net/mcffec.c
+++ b/drivers/net/mcffec.c
@@ -166,6 +166,13 @@
/* Activate transmit Buffer Descriptor polling */
fecp->tdar = 0x01000000; /* Descriptor polling active */
+ /* FEC fix for MCF5275, FEC unable to initial transmit data packet.
+ * A nop will ensure the descriptor polling active completed.
+ */
+#ifdef CONFIG_M5275
+ __asm__ ("nop");
+#endif
+
#ifdef CFG_UNIFY_CACHE
icache_invalid();
#endif