diff options
| -rw-r--r-- | drivers/net/dsa/mt7530.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/net/dsa/mt7530.c b/drivers/net/dsa/mt7530.c index 1f6cd24de4b7..2b9f904a98f0 100644 --- a/drivers/net/dsa/mt7530.c +++ b/drivers/net/dsa/mt7530.c @@ -2635,7 +2635,10 @@ mt7531_setup(struct dsa_switch *ds) if (!priv->p5_sgmii) { mt7531_pll_setup(priv); } else { - /* Let ds->user_mii_bus be able to access external phy. */ + /* Unlike MT7531BE, the GPIO 6-12 pins are not used for RGMII on + * MT7531AE. Set the GPIO 11-12 pins to function as MDC and MDIO + * to expose the MDIO bus of the switch. + */ mt7530_rmw(priv, MT7531_GPIO_MODE1, MT7531_GPIO11_RG_RXD2_MASK, MT7531_EXT_P_MDC_11); mt7530_rmw(priv, MT7531_GPIO_MODE1, MT7531_GPIO12_RG_RXD3_MASK, |