diff options
| -rw-r--r-- | drivers/net/igb/e1000_mac.c | 7 |
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(); } /** |