drivers: ethernet: phy: ksz8081: use default speeds

use default speeds from dt to configure phy on init.

Signed-off-by: Fin Maaß <f.maass@vogl-electronic.com>

Author: maass-hamburg

drivers/ethernet/phy/phy_microchip_ksz8081.c

@@ -44,6 +44,7 @@ struct mc_ksz8081_config {
 	uint8_t addr;
 	const struct device *mdio_dev;
 	enum ksz8081_interface phy_iface;
+	enum phy_link_speed default_speeds;
 #if DT_ANY_INST_HAS_PROP_STATUS_OKAY(reset_gpios)
 	const struct gpio_dt_spec reset_gpio;
 #endif
@@ -489,6 +490,9 @@ static int phy_mc_ksz8081_init(const struct device *dev)
 	k_work_init_delayable(&data->phy_monitor_work,
 				phy_mc_ksz8081_monitor_work_handler);
 
+	/* Advertise default speeds */
+	phy_mc_ksz8081_cfg_link(dev, config->default_speeds, 0);
+
 	return 0;
 }
 
@@ -519,6 +523,7 @@ static DEVICE_API(ethphy, mc_ksz8081_phy_api) = {
 		.addr = DT_INST_REG_ADDR(n),					\
 		.mdio_dev = DEVICE_DT_GET(DT_INST_PARENT(n)),			\
 		.phy_iface = DT_INST_ENUM_IDX(n, microchip_interface_type),	\
+		.default_speeds = PHY_INST_GENERATE_DEFAULT_SPEEDS(n),		\
 		RESET_GPIO(n)							\
 		INTERRUPT_GPIO(n)						\
 	};									\

dts/bindings/ethernet/phy/microchip,ksz8081.yaml

@@ -22,3 +22,6 @@ properties:
       - "mii"
       - "rmii"
       - "rmii-25MHz"
+  default-speeds:
+    default: ["10BASE Half-Duplex", "10BASE Full-Duplex", "100BASE Half-Duplex",
+              "100BASE Full-Duplex"]