Other Parts Discussed in Thread: AM3352, TPS65910, SYSCONFIG
-------------------------------------------------------Ethtool check------------------------------------------------
am335x-evm login: root
root@am335x-evm:~# [ 28.408359] cpsw 4a100000.ethernet eth1: Link is Up - 1Gbps/Full - flow control off
[ 28.416245] IPv6: ADDRCONF(NETDEV_CHANGE): eth1: link becomes ready
ethtool -s eth1 speed 1000 duplex full autoneg off
root@am335x-evm:~# [ 35.687090] cpsw 4a100000.ethernet eth1: Link is Down
ethtool -s eth1 speed 100 duplex full autoneg off
root@am335x-evm:~# [ 46.087063] cpsw 4a100000.ethernet eth1: Link is Up - 100Mbps/Full - flow control off
root@am335x-evm:~# ethtool -s eth1 speed 1000 duplex full autoneg off
root@am335x-evm:~# [ 58.567097] cpsw 4a100000.ethernet eth1: Link is Down
ethtool -s eth1 speed 100 duplex full autoneg off
root@am335x-evm:~# [ 78.327091] cpsw 4a100000.ethernet eth1: Link is Up - 100Mbps/Full - flow control off
ethtool -s eth1 speed 100 duplex full autoneg off
Note:After booting 1gbps(highlighted in yellow) line is showing Up but once if we check with ethtool we are getting Link is down always.
---------------------------------------------Dts configuration for PHY----------------------------------------------
cpsw_default: cpsw_default {
pinctrl-single,pins = <
/* Slave 1 */
AM33XX_IOPAD(0x914, PIN_OUTPUT_PULLDOWN | MUX_MODE2) /* mii1_txen.rgmii1_tctl */
AM33XX_IOPAD(0x918, PIN_INPUT_PULLDOWN | MUX_MODE2) /* mii1_rxdv.rgmii1_rctl */
AM33XX_IOPAD(0x91c, PIN_OUTPUT_PULLDOWN | MUX_MODE2) /* mii1_txd3.rgmii1_td3 */
AM33XX_IOPAD(0x920, PIN_OUTPUT_PULLDOWN | MUX_MODE2) /* mii1_txd2.rgmii1_td2 */
AM33XX_IOPAD(0x924, PIN_OUTPUT_PULLDOWN | MUX_MODE2) /* mii1_txd1.rgmii1_td1 */
AM33XX_IOPAD(0x928, PIN_OUTPUT_PULLDOWN | MUX_MODE2) /* mii1_txd0.rgmii1_td0 */
AM33XX_IOPAD(0x92c, PIN_OUTPUT_PULLUP | MUX_MODE2) /* mii1_txclk.rgmii1_tclk */
AM33XX_IOPAD(0x930, PIN_INPUT_PULLDOWN | MUX_MODE2) /* mii1_rxclk.rgmii1_rclk */
AM33XX_IOPAD(0x934, PIN_INPUT_PULLDOWN | MUX_MODE2) /* mii1_rxd3.rgmii1_rd3 */
AM33XX_IOPAD(0x938, PIN_INPUT_PULLDOWN | MUX_MODE2) /* mii1_rxd2.rgmii1_rd2 */
AM33XX_IOPAD(0x93c, PIN_INPUT_PULLDOWN | MUX_MODE2) /* mii1_rxd1.rgmii1_rd1 */
AM33XX_IOPAD(0x940, PIN_INPUT_PULLDOWN | MUX_MODE2) /* mii1_rxd0.rgmii1_rd0 */
/*AM33XX_IOPAD(0xA34, PIN_INPUT_PULLUP | MUX_MODE7) /* (F15) USB1_DRVVBUS.gpio3[13] */
>;
};
cpsw_sleep: cpsw_sleep {
pinctrl-single,pins = <
AM33XX_IOPAD(0x914, (PIN_INPUT_PULLDOWN | MUX_MODE7) ) /* (J16) gmii1_txen.rgmii1_tctl */
AM33XX_IOPAD(0x918, (PIN_INPUT_PULLDOWN | MUX_MODE7) ) /* (J17) gmii1_rxdv.rgmii1_rctl */
AM33XX_IOPAD(0x92c, (PIN_OUTPUT_PULLUP | MUX_MODE7) ) /* (K18) gmii1_txclk.rgmii1_tclk */
AM33XX_IOPAD(0x930, (PIN_INPUT_PULLDOWN | MUX_MODE7) ) /* (L18) gmii1_rxclk.rgmii1_rclk */
AM33XX_IOPAD(0x928, (PIN_INPUT_PULLDOWN | MUX_MODE7) ) /* (K17) gmii1_txd0.rgmii1_td0 */
AM33XX_IOPAD(0x924, (PIN_INPUT_PULLDOWN | MUX_MODE7) ) /* (K16) gmii1_txd1.rgmii1_td1 */
AM33XX_IOPAD(0x920, (PIN_INPUT_PULLDOWN | MUX_MODE7) ) /* (K15) gmii1_txd2.rgmii1_td2 */
AM33XX_IOPAD(0x91c, (PIN_INPUT_PULLDOWN | MUX_MODE7) ) /* (J18) gmii1_txd3.rgmii1_td3 */
AM33XX_IOPAD(0x940, (PIN_INPUT_PULLDOWN | MUX_MODE7) ) /* (M16) gmii1_rxd0.rgmii1_rd0 */
AM33XX_IOPAD(0x93c, (PIN_INPUT_PULLDOWN | MUX_MODE7) ) /* (L15) gmii1_rxd1.rgmii1_rd1 */
AM33XX_IOPAD(0x938, (PIN_INPUT_PULLDOWN | MUX_MODE7) ) /* (L16) gmii1_rxd2.rgmii1_rd2 */
AM33XX_IOPAD(0x934, (PIN_INPUT_PULLDOWN | MUX_MODE7) ) /* (L17) gmii1_rxd3.rgmii1_rd3 */
>;
};
&mac {
pinctrl-names = "default", "sleep";
pinctrl-0 = <&cpsw_default>;
pinctrl-1 = <&cpsw_sleep>;
dual_emac;
status = "okay";
};
&davinci_mdio {
pinctrl-names = "default", "sleep";
compatible = "ti,cpsw-mdio", "ti,davinci_mdio";
pinctrl-0 = <&davinci_mdio_default>;
pinctrl-1 = <&davinci_mdio_sleep>;
status = "okay";
dp83867_3: ethernet-phy@3 {
reg = <3>;
ti,rx-internal-delay = <DP83867_RGMIIDCTL_3_50_NS>;
ti,tx-internal-delay = <DP83867_RGMIIDCTL_4_00_NS>;
ti,fifo-depth = <DP83867_PHYCR_FIFO_DEPTH_8_B_NIB>;
ti,min-output-impedance;
ti,dp83867-rxctrl-strap-quirk;
max-speed=<1000>;
};
dp83867_0: ethernet-phy@0 {
reg = <0>;
ti,rx-internal-delay = <DP83867_RGMIIDCTL_3_25_NS>;
ti,tx-internal-delay = <DP83867_RGMIIDCTL_3_25_NS>;
ti,fifo-depth = <DP83867_PHYCR_FIFO_DEPTH_8_B_NIB>;
ti,min-output-impedance;
ti,dp83867-rxctrl-strap-quirk;
max-speed=<1000>;
};
};
&cpsw_emac0 {
phy-handle = <&dp83867_3>;
phy_id = <&davinci_mdio>, <3>;
phy-mode = "rgmii-id";
dual_emac_res_vlan = <1>;
};
&cpsw_emac1 {
phy-handle = <&dp83867_0>;
phy_id = <&davinci_mdio>, <0>;
phy-mode = "rgmii-id";
dual_emac_res_vlan = <2>;
};
-------------------------------------------------------------------------------------------------------------------------------
We are bringing up a custom board based on am335x icev2 board.In our custom board we are using DP83867 PHY chipset it’s working on 10/100Mbps speed fine,but when we check 1000Mbps(1G) in ethtool we are getting link is down.what could be the reason and how to resolve this issue.
Here below i have attached boot logs and Dts configuration for RGMII interface please check and revert back us to resolve this issue.
