Commit 8373a0fe authored by Rafał Miłecki's avatar Rafał Miłecki Committed by David S. Miller
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net: dsa: bcm_sf2: use 2 Gbps IMP port link on BCM4908 



BCM4908 uses 2 Gbps link between switch and the Ethernet interface.
Without this BCM4908 devices were able to achieve only 2 x ~895 Mb/s.
This allows handling e.g. NAT traffic with 940 Mb/s.

Signed-off-by: default avatarRafał Miłecki <rafal@milecki.pl>
Acked-by: default avatarFlorian Fainelli <f.fainelli@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 0571a753

drivers/net/dsa/bcm_sf2.c

+4 −1
Original line number Diff line number Diff line
@@ -114,6 +114,9 @@ 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);

		if (priv->type == BCM4908_DEVICE_ID)

			reg |= GMII_SPEED_UP_2G;

		else

			reg &= ~GMII_SPEED_UP_2G;

		core_writel(priv, reg, offset);