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 */