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net: lan966x: Fix port configuration when using SGMII interface

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[ Upstream commit 62b4248105 ]

In case the interface between the MAC and the PHY is SGMII, then the bit
GIGA_MODE on the MAC side needs to be set regardless of the speed at
which it is running.

Fixes: d28d6d2e37 ("net: lan966x: add port module support")
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Horatiu Vultur 2024-01-24 11:17:58 +01:00 committed by Greg Kroah-Hartman
parent dcaafdba6c
commit f0025c92b1
1 changed files with 3 additions and 2 deletions
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5
drivers/net/ethernet/microchip/lan966x/lan966x_port.c
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@ -168,9 +168,10 @@ static void lan966x_port_link_up(struct lan966x_port *port)
lan966x_taprio_speed_set(port, config->speed);
/* Also the GIGA_MODE_ENA(1) needs to be set regardless of the
* port speed for QSGMII ports.
* port speed for QSGMII or SGMII ports.
*/
if (phy_interface_num_ports(config->portmode) == 4)
if (phy_interface_num_ports(config->portmode) == 4 ||
config->portmode == PHY_INTERFACE_MODE_SGMII)
mode = DEV_MAC_MODE_CFG_GIGA_MODE_ENA_SET(1);
lan_wr(config->duplex | mode,