rtl8180: don't write MAR registers for rtl8187se

MAR registers are not present in rtl8187se, and attempting to
write to them must be avoided

Signed-off-by: Andrea Merello <andrea.merello@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 7 insertions, 2 deletions

diff --git a/drivers/net/wireless/rtl818x/rtl8180/dev.c b/drivers/net/wireless/rtl818x/rtl8180/dev.c
index 92b6d53ca0ef..cce972d289ef 100644
--- a/drivers/net/wireless/rtl818x/rtl8180/dev.c
+++ b/drivers/net/wireless/rtl818x/rtl8180/dev.c
@@ -779,8 +779,13 @@ static int rtl8180_start(struct ieee80211_hw *dev)
 
         rtl8180_int_enable(dev);
 
-        rtl818x_iowrite32(priv, &priv->map->MAR[0], ~0);
-        rtl818x_iowrite32(priv, &priv->map->MAR[1], ~0);
+        /* in rtl8187se at MAR regs offset there is the management
+         * TX descriptor DMA addres..
+         */
+        if (priv->chip_family != RTL818X_CHIP_FAMILY_RTL8187SE) {
+                rtl818x_iowrite32(priv, &priv->map->MAR[0], ~0);
+                rtl818x_iowrite32(priv, &priv->map->MAR[1], ~0);
+        }
 
         reg = RTL818X_RX_CONF_ONLYERLPKT |
               RTL818X_RX_CONF_RX_AUTORESETPHY |