| From 8373a0fe9c7160a55482effa8a3f725efd3f8434 Mon Sep 17 00:00:00 2001 |
| From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> |
| 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 <rafal@milecki.pl> |
| Acked-by: Florian Fainelli <f.fainelli@gmail.com> |
| Signed-off-by: David S. Miller <davem@davemloft.net> |
| --- |
| 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 */ |