[PATCH 5.4 157/222] net: dsa: bcm_sf2: Configure IMP port for 2Gb/sec

From: Greg Kroah-Hartman
Date: Wed Jan 22 2020 - 08:24:38 EST


From: Florian Fainelli <f.fainelli@xxxxxxxxx>

[ Upstream commit 8f1880cbe8d0d49ebb7e9ae409b3b96676e5aa97 ]

With the implementation of the system reset controller we lost a setting
that is currently applied by the bootloader and which configures the IMP
port for 2Gb/sec, the default is 1Gb/sec. This is needed given the
number of ports and applications we expect to run so bring back that
setting.

Fixes: 01b0ac07589e ("net: dsa: bcm_sf2: Add support for optional reset controller line")
Signed-off-by: Florian Fainelli <f.fainelli@xxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/net/dsa/bcm_sf2.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/net/dsa/bcm_sf2.c
+++ b/drivers/net/dsa/bcm_sf2.c
@@ -68,7 +68,7 @@ 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 |= (MII_SW_OR | LINK_STS | GMII_SPEED_UP_2G);
core_writel(priv, reg, offset);

/* Enable Broadcast, Multicast, Unicast forwarding to IMP port */