From: Florian Fainelli <f.fainelli@gmail.com> [ Upstream commit de34d7084edd069dac5aa010cfe32bd8c4619fa6 ] The 7445 switch clocking profiles do not allow us to run the IMP port at 2Gb/sec in a way that it is reliable and consistent. Make sure that the setting is only applied to the 7278 family. Fixes: 8f1880cbe8d0 ("net: dsa: bcm_sf2: Configure IMP port for 2Gb/sec") Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> --- drivers/net/dsa/bcm_sf2.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/net/dsa/bcm_sf2.c b/drivers/net/dsa/bcm_sf2.c index c936090..f181a28 100644 --- a/drivers/net/dsa/bcm_sf2.c +++ b/drivers/net/dsa/bcm_sf2.c @@ -72,7 +72,9 @@ static void bcm_sf2_imp_setup(struct dsa_switch *ds, int port) /* Force link status for IMP port */ reg = core_readl(priv, offset); - reg |= (MII_SW_OR | LINK_STS | GMII_SPEED_UP_2G); + reg |= (MII_SW_OR | LINK_STS); + if (priv->type == BCM7278_DEVICE_ID) + reg |= GMII_SPEED_UP_2G; core_writel(priv, reg, offset); /* Enable Broadcast, Multicast, Unicast forwarding to IMP port */ -- 1.8.3