From f18f112bde931faa25b33f7fa97281be5ef5e2c4 Mon Sep 17 00:00:00 2001 From: Andrea Merello Date: Wed, 26 Mar 2014 21:00:42 +0100 Subject: [PATCH] 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 Signed-off-by: John W. Linville --- drivers/net/wireless/rtl818x/rtl8180/dev.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/drivers/net/wireless/rtl818x/rtl8180/dev.c b/drivers/net/wireless/rtl818x/rtl8180/dev.c index 92b6d53ca0e..cce972d289e 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 | -- 2.46.0