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authorRussell King <rmk+kernel@armlinux.org.uk>2020-07-08 12:31:01 +0100
committerRussell King <rmk+kernel@armlinux.org.uk>2020-10-12 22:14:35 +0100
commit4f54cf4c901dd0b759af7b2ee1fe344d970df50b (patch)
tree33f147508041eedde8d59e926d63be01c89084e1
parent3f614fdd2ec12a98f3c7208da6b2f305d19a336a (diff)
net: dsa/mv88e6xxx: add support for rate-matching PHYs
Add basic support for rate-matching 10G PHYs for mv88e6xxx - if we are in RXAUI, XAUI or 10GBASE-R mode, the link speed is 10G, even if the media is running at a slower speed. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
-rw-r--r--drivers/net/dsa/mv88e6xxx/chip.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c
index 34dc63bbeb6c..bd60e509d809 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.c
+++ b/drivers/net/dsa/mv88e6xxx/chip.c
@@ -760,6 +760,18 @@ static void mv88e6xxx_mac_link_up(struct dsa_switch *ds, int port,
if (err)
goto error;
+ /* The link parameters passed in are the media side parameters.
+ * If in RXAUI, XAUI or 10GBASE-R with a rate matching PHY, we
+ * need to operate our link at 10G. Only full duplex is
+ * supported at this speed.
+ */
+ if (interface == PHY_INTERFACE_MODE_RXAUI ||
+ interface == PHY_INTERFACE_MODE_XAUI ||
+ interface == PHY_INTERFACE_MODE_10GBASER) {
+ speed = SPEED_10000;
+ duplex = DUPLEX_FULL;
+ }
+
if (ops->port_set_speed_duplex) {
err = ops->port_set_speed_duplex(chip, port,
speed, duplex);