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-rw-r--r--drivers/net/dsa/mv88e6xxx/chip.c10
-rw-r--r--drivers/net/dsa/mv88e6xxx/port.c4
-rw-r--r--drivers/net/dsa/mv88e6xxx/port.h1
3 files changed, 15 insertions, 0 deletions
diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c
index 9d36d2b5fbc6..f5cad42875e9 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.c
+++ b/drivers/net/dsa/mv88e6xxx/chip.c
@@ -4595,6 +4595,14 @@ static int mv88e6xxx_smi_init(struct mv88e6xxx_chip *chip,
return 0;
}
+static void mv88e6xxx_ports_cmode_init(struct mv88e6xxx_chip *chip)
+{
+ int i;
+
+ for (i = 0; i < mv88e6xxx_num_ports(chip); i++)
+ chip->ports[i].cmode = MV88E6XXX_PORT_STS_CMODE_INVALID;
+}
+
static enum dsa_tag_protocol mv88e6xxx_get_tag_protocol(struct dsa_switch *ds,
int port)
{
@@ -4631,6 +4639,8 @@ static const char *mv88e6xxx_drv_probe(struct device *dsa_dev,
if (err)
goto free;
+ mv88e6xxx_ports_cmode_init(chip);
+
mutex_lock(&chip->reg_lock);
err = mv88e6xxx_switch_reset(chip);
mutex_unlock(&chip->reg_lock);
diff --git a/drivers/net/dsa/mv88e6xxx/port.c b/drivers/net/dsa/mv88e6xxx/port.c
index 4b02c96f6786..79ab51e69aee 100644
--- a/drivers/net/dsa/mv88e6xxx/port.c
+++ b/drivers/net/dsa/mv88e6xxx/port.c
@@ -398,6 +398,10 @@ int mv88e6390x_port_set_cmode(struct mv88e6xxx_chip *chip, int port,
cmode = 0;
}
+ /* cmode doesn't change, nothing to do for us */
+ if (cmode == chip->ports[port].cmode)
+ return 0;
+
lane = mv88e6390x_serdes_get_lane(chip, port);
if (lane < 0)
return lane;
diff --git a/drivers/net/dsa/mv88e6xxx/port.h b/drivers/net/dsa/mv88e6xxx/port.h
index e583641de758..4aadf321edb7 100644
--- a/drivers/net/dsa/mv88e6xxx/port.h
+++ b/drivers/net/dsa/mv88e6xxx/port.h
@@ -52,6 +52,7 @@
#define MV88E6185_PORT_STS_CMODE_1000BASE_X 0x0005
#define MV88E6185_PORT_STS_CMODE_PHY 0x0006
#define MV88E6185_PORT_STS_CMODE_DISABLED 0x0007
+#define MV88E6XXX_PORT_STS_CMODE_INVALID 0xff
/* Offset 0x01: MAC (or PCS or Physical) Control Register */
#define MV88E6XXX_PORT_MAC_CTL 0x01