From: "Marek Behún" <marek.behun@nic.cz>
To: netdev@vger.kernel.org
Cc: "Andrew Lunn" <andrew@lunn.ch>,
"Vivien Didelot" <vivien.didelot@gmail.com>,
"Florian Fainelli" <f.fainelli@gmail.com>,
"Vladimir Oltean" <olteanv@gmail.com>,
"Marek Behún" <marek.behun@nic.cz>
Subject: [PATCH net-next v3 1/6] net: dsa: mv88e6xxx: support 2500base-x in SGMII IRQ handler
Date: Sun, 25 Aug 2019 05:59:10 +0200 [thread overview]
Message-ID: <20190825035915.13112-2-marek.behun@nic.cz> (raw)
In-Reply-To: <20190825035915.13112-1-marek.behun@nic.cz>
The mv88e6390_serdes_irq_link_sgmii IRQ handler reads the SERDES PHY
status register to determine speed, among other things. If cmode of the
port is set to 2500base-x, though, the PHY still reports 1000 Mbps (the
PHY register itself does not differentiate between 1000 Mbps and 2500
Mbps - it thinks it is running at 1000 Mbps, although clock is 2.5x
faster).
Look at the cmode and set SPEED_2500 if cmode is set to 2500base-x.
Also tell mv88e6xxx_port_setup_mac the PHY interface mode corresponding
to current cmode in terms of phy_interface_t.
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Vladimir Oltean <olteanv@gmail.com>
Cc: Vivien Didelot <vivien.didelot@gmail.com>
---
drivers/net/dsa/mv88e6xxx/serdes.c | 23 +++++++++++++++++++++--
1 file changed, 21 insertions(+), 2 deletions(-)
diff --git a/drivers/net/dsa/mv88e6xxx/serdes.c b/drivers/net/dsa/mv88e6xxx/serdes.c
index 20c526c2a9ee..678aaba3d019 100644
--- a/drivers/net/dsa/mv88e6xxx/serdes.c
+++ b/drivers/net/dsa/mv88e6xxx/serdes.c
@@ -505,9 +505,11 @@ int mv88e6390x_serdes_power(struct mv88e6xxx_chip *chip, int port, bool on)
static void mv88e6390_serdes_irq_link_sgmii(struct mv88e6xxx_chip *chip,
int port, int lane)
{
+ u8 cmode = chip->ports[port].cmode;
struct dsa_switch *ds = chip->ds;
int duplex = DUPLEX_UNKNOWN;
int speed = SPEED_UNKNOWN;
+ phy_interface_t mode;
int link, err;
u16 status;
@@ -527,7 +529,10 @@ static void mv88e6390_serdes_irq_link_sgmii(struct mv88e6xxx_chip *chip,
switch (status & MV88E6390_SGMII_PHY_STATUS_SPEED_MASK) {
case MV88E6390_SGMII_PHY_STATUS_SPEED_1000:
- speed = SPEED_1000;
+ if (cmode == MV88E6XXX_PORT_STS_CMODE_2500BASEX)
+ speed = SPEED_2500;
+ else
+ speed = SPEED_1000;
break;
case MV88E6390_SGMII_PHY_STATUS_SPEED_100:
speed = SPEED_100;
@@ -541,8 +546,22 @@ static void mv88e6390_serdes_irq_link_sgmii(struct mv88e6xxx_chip *chip,
}
}
+ switch (cmode) {
+ case MV88E6XXX_PORT_STS_CMODE_SGMII:
+ mode = PHY_INTERFACE_MODE_SGMII;
+ break;
+ case MV88E6XXX_PORT_STS_CMODE_1000BASE_X:
+ mode = PHY_INTERFACE_MODE_1000BASEX;
+ break;
+ case MV88E6XXX_PORT_STS_CMODE_2500BASEX:
+ mode = PHY_INTERFACE_MODE_2500BASEX;
+ break;
+ default:
+ mode = PHY_INTERFACE_MODE_NA;
+ }
+
err = mv88e6xxx_port_setup_mac(chip, port, link, speed, duplex,
- PAUSE_OFF, PHY_INTERFACE_MODE_NA);
+ PAUSE_OFF, mode);
if (err)
dev_err(chip->dev, "can't propagate PHY settings to MAC: %d\n",
err);
--
2.21.0
next prev parent reply other threads:[~2019-08-25 3:59 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-25 3:59 [PATCH net-next v3 0/6] net: dsa: mv88e6xxx: Peridot/Topaz SERDES changes Marek Behún
2019-08-25 3:59 ` Marek Behún [this message]
2019-08-25 3:59 ` [PATCH net-next v3 2/6] net: dsa: mv88e6xxx: update code operating on hidden registers Marek Behún
2019-08-25 15:07 ` Vivien Didelot
2019-08-25 3:59 ` [PATCH net-next v3 3/6] net: dsa: mv88e6xxx: create serdes_get_lane chip operation Marek Behún
2019-08-25 15:48 ` Vivien Didelot
2019-08-25 16:12 ` Vivien Didelot
2019-08-26 12:21 ` Marek Behun
2019-08-25 3:59 ` [PATCH net-next v3 4/6] net: dsa: mv88e6xxx: simplify SERDES code for Topaz and Peridot Marek Behún
2019-08-25 16:02 ` Vivien Didelot
2019-08-25 16:36 ` Marek Behun
2019-08-26 16:08 ` Vivien Didelot
2019-08-25 3:59 ` [PATCH net-next v3 5/6] net: dsa: mv88e6xxx: rename port cmode macro Marek Behún
2019-08-25 3:59 ` [PATCH net-next v3 6/6] net: dsa: mv88e6xxx: fully support SERDES on Topaz family Marek Behún
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