1 files changed, 7 insertions, 0 deletions

diff --git a/drivers/net/igb/e1000_mac.c b/drivers/net/igb/e1000_mac.c
index 4969a5b1cf3c..2ad358a240bf 100644
--- a/drivers/net/igb/e1000_mac.c
+++ b/drivers/net/igb/e1000_mac.c
@@ -247,8 +247,15 @@ void igb_rar_set(struct e1000_hw *hw, u8 *addr, u32 index)
         if (rar_low || rar_high)
                 rar_high |= E1000_RAH_AV;
 
+        /*
+         * Some bridges will combine consecutive 32-bit writes into
+         * a single burst write, which will malfunction on some parts.
+         * The flushes avoid this.
+         */
         wr32(E1000_RAL(index), rar_low);
+        wrfl();
         wr32(E1000_RAH(index), rar_high);
+        wrfl();
 }
 
 /**