[PATCH 4.19 47/70] net: dsa: bcm_sf2: Configure IMP port for 2Gb/sec

From: Greg Kroah-Hartman
Date: Mon Feb 03 2020 - 11:33:00 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: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/net/dsa/bcm_sf2.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/dsa/bcm_sf2.c b/drivers/net/dsa/bcm_sf2.c
index 02a4187d81bd0..c936090076706 100644
--- a/drivers/net/dsa/bcm_sf2.c
+++ b/drivers/net/dsa/bcm_sf2.c
@@ -72,7 +72,7 @@ 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);
+ reg |= (MII_SW_OR | LINK_STS | GMII_SPEED_UP_2G);
core_writel(priv, reg, offset);

/* Enable Broadcast, Multicast, Unicast forwarding to IMP port */
--
2.20.1