[PATCH 2/2 net-next v3.16]r9169: Search for registers on set_rx_mode

[Corcodel Marian]

 This patch add searching for needed registers on set_rx_mode function
 and add delay to bee ready.This is for starting on full duplex on full
 speed.

Signed-off-by: Corcodel Marian <a...@marian1000.go.ro>
---
 drivers/net/ethernet/realtek/r8169.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/ethernet/realtek/r8169.c 
b/drivers/net/ethernet/realtek/r8169.c
index f7b0dfb..0ae8969 100644
--- a/drivers/net/ethernet/realtek/r8169.c
+++ b/drivers/net/ethernet/realtek/r8169.c
@@ -4604,6 +4604,9 @@ static void rtl_set_rx_mode(struct net_device *dev)
        int rx_mode;
        u32 tmp = 0;
 
+       if (!(RTL_R32(MAR0) | RTL_R32(MAR0 + 4) | RTL_R32(RxConfig)))
+               return;
+
        if (dev->flags & IFF_PROMISC) {
                /* Unconditionally log net taps. */
                netif_notice(tp, link, dev, "Promiscuous mode enabled\n");
-- 
2.1.4