Team,
We are trying to bring OOB support for AM5716 based custom switch with Linux v4.14. We are seeing the below errors in the dmesg logs.
[ 9.998133] libphy: Fixed MDIO Bus: probed
[ 10.047837] tun: Universal TUN/TAP device driver, 1.6
[ 10.167197] davinci_mdio 48485000.mdio: davinci mdio revision 1.6, bus freq 1000000
[ 10.259724] davinci_mdio 48485000.mdio: no live phy, scanning all
[ 10.334710] davinci_mdio: probe of 48485000.mdio failed with error -5
[ 10.413064] cpsw 48484000.ethernet: Detected MACID = a8:10:87:91:2a:fe
[ 10.492677] cpsw 48484000.ethernet: cpsw: Detected MACID = a8:10:87:91:2a:ff
Below are the dtsi file changes for your reference.
rgmii0_switch_pins: rgmii0_switch_pins {
pinctrl-single,pins = <
0x260 (INPUT_EN | MUX_MODE3) /* rgmii0_txd1.rgmii0_txd1 */
0x254 (PIN_INPUT | MUX_MODE3) /* rgmii0_txctl.rgmii0_txctl */
0x250 (INPUT_EN | MUX_MODE3) /* rgmii0_txc.rgmii0_txc */
0x264 (INPUT_EN | MUX_MODE3) /* rgmii0_txd0.rgmii0_txd0 */
0x248 (PIN_INPUT_SLEW | MUX_MODE3) /* uart3_rxd.gpio5_18 */
0x24C (PIN_INPUT_SLEW | MUX_MODE3) /* uart3_txd.gpio5_19 */
0x268 (INPUT_EN | MUX_MODE3) /* rgmii0_rxc.rgmii0_rxc */
0x27C (MUX_MODE3) /* rgmii0_rxd0.rgmii0_rxd0 */
0x278 (MUX_MODE3) /* rgmii0_rxd1.rgmii0_rxd1 */
0x270 (MUX_MODE3) /* rgmii0_rxd3.rgmii0_rxd3 */
0x26C (MUX_MODE3) /* rgmii0_rxctl.rgmii0_rxctl */
0x240 (PIN_INPUT | MUX_MODE3) /* mdio_d.mdio_d */
0x25C (INPUT_EN | MUX_MODE3) /* rgmii0_txd2.rgmii0_txd2 */
0x23C (PIN_INPUT | MUX_MODE3) /* mdio_mclk.mdio_mclk */
0x258 (INPUT_EN | MUX_MODE3) /* rgmii0_txd3.rgmii0_txd3 */
0x274 (MUX_MODE3) /* rgmii0_rxd2.rgmii0_rxd2 */
>;
};
davinci_mdio_pins_default: davinci_mdio_pins_default {
pinctrl-single,pins = <
/* MDIO */
0x190 (PIN_OUTPUT_PULLUP | MUX_MODE3) /* vin2a_d10.mdio_mclk */
0x194 (PIN_INPUT_PULLUP | MUX_MODE3) /* vin2a_d11.mdio_d */
>;
};
&mac {
status = "okay";
pinctrl-names = "default";
pinctrl-0 = <&rgmii0_switch_pins>;
dual_emac;
};
&davinci_mdio {
status = "okay";
pinctrl-names = "default";
pinctrl-0 = <&davinci_mdio_pins_default>;
};
&cpsw_emac0 {
phy_id = <&davinci_mdio>, <1>;
phy-mode = "mii";
dual_emac_res_vlan = <1>;
};
&cpsw_emac1 {
phy_id = <&davinci_mdio>, <2>;
phy-mode = "mii";
dual_emac_res_vlan = <2>;
};
Do we need to do additional dtsi configuration or any other code changes to resolve this error ?
Please let us know your suggestions.
Note: uname -a output:
