From 8373a0fe9c7160a55482effa8a3f725efd3f8434 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= Date: Wed, 10 Mar 2021 13:51:59 +0100 Subject: [PATCH] net: dsa: bcm_sf2: use 2 Gbps IMP port link on BCM4908 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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: Rafał Miłecki Acked-by: Florian Fainelli Signed-off-by: David S. Miller --- drivers/net/dsa/bcm_sf2.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) --- a/drivers/net/dsa/bcm_sf2.c +++ b/drivers/net/dsa/bcm_sf2.c @@ -70,7 +70,10 @@ static void bcm_sf2_imp_setup(struct dsa /* Force link status for IMP port */ reg = core_readl(priv, offset); reg |= (MII_SW_OR | LINK_STS); - reg &= ~GMII_SPEED_UP_2G; + if (priv->type == BCM4908_DEVICE_ID) + reg |= GMII_SPEED_UP_2G; + else + reg &= ~GMII_SPEED_UP_2G; core_writel(priv, reg, offset); /* Enable Broadcast, Multicast, Unicast forwarding to IMP port */