Tool/software:
Hi, have been trying to bring up Ethernet on AM6442. We are using RGMII ports on PRU_ICSSG1. During initialization, I get the following error:
[ 11.753582] icssg-prueth icssg1-eth: port 2: using random MAC addr: ae:b4:6b:b9:81:11 [ 11.753635] icssg-prueth icssg1-eth: registering netdevs [ 11.754561] icssg-prueth icssg1-eth: couldn't connect to phy ethernet-phy@1 [ 11.754583] icssg-prueth icssg1-eth: can't connect to MII0 PHY, error --19 (deferring)
Can you please verify the device tree attached below:
icssg1_rgmii1_pins_default: icssg1-rgmii1-pins-default { pinctrl-single,pins = < AM64X_IOPAD(0x00b8, PIN_INPUT, 2) /* (Y7) PRG1_PRU0_GPO0.PRG1_RGMII1_RD0 */ AM64X_IOPAD(0x00bc, PIN_INPUT, 2) /* (U8) PRG1_PRU0_GPO1.PRG1_RGMII1_RD1 */ AM64X_IOPAD(0x00c0, PIN_INPUT, 2) /* (W8) PRG1_PRU0_GPO2.PRG1_RGMII1_RD2 */ AM64X_IOPAD(0x00c4, PIN_INPUT, 2) /* (V8) PRG1_PRU0_GPO3.PRG1_RGMII1_RD3 */ AM64X_IOPAD(0x00c8, PIN_INPUT, 2) /* (Y8) PRG1_PRU0_GPO4.PRG1_RGMII1_RX_CTL */ AM64X_IOPAD(0x00d0, PIN_INPUT, 2) /* (AA7) PRG1_PRU0_GPO6.PRG1_RGMII1_RXC */ AM64X_IOPAD(0x00e4, PIN_OUTPUT, 2) /* (AA8) PRG1_PRU0_GPO11.PRG1_RGMII1_TD0 */ AM64X_IOPAD(0x00e8, PIN_OUTPUT, 2) /* (U9) PRG1_PRU0_GPO12.PRG1_RGMII1_TD1 */ AM64X_IOPAD(0x00ec, PIN_OUTPUT, 2) /* (W9) PRG1_PRU0_GPO13.PRG1_RGMII1_TD2 */ AM64X_IOPAD(0x00f0, PIN_OUTPUT, 2) /* (AA9) PRG1_PRU0_GPO14.PRG1_RGMII1_TD3 */ AM64X_IOPAD(0x00f4, PIN_OUTPUT, 2) /* (Y9) PRG1_PRU0_GPO15.PRG1_RGMII1_TX_CTL */ AM64X_IOPAD(0x00f8, PIN_OUTPUT, 2) /* (V9) PRG1_PRU0_GPO16.PRG1_RGMII1_TXC */ >; }; icssg1_rgmii2_pins_default: icssg1-rgmii2-pins-default { pinctrl-single,pins = < AM64X_IOPAD(0x0108, PIN_INPUT, 2) /* (W11) PRG1_PRU1_GPO0.PRG1_RGMII2_RD0 */ AM64X_IOPAD(0x010c, PIN_INPUT, 2) /* (V11) PRG1_PRU1_GPO1.PRG1_RGMII2_RD1 */ AM64X_IOPAD(0x0110, PIN_INPUT, 2) /* (AA12) PRG1_PRU1_GPO2.PRG1_RGMII2_RD2 */ AM64X_IOPAD(0x0114, PIN_INPUT, 2) /* (Y12) PRG1_PRU1_GPO3.PRG1_RGMII2_RD3 */ AM64X_IOPAD(0x0118, PIN_INPUT, 2) /* (W12) PRG1_PRU1_GPO4.PRG1_RGMII2_RX_CTL */ AM64X_IOPAD(0x0120, PIN_INPUT, 2) /* (U11) PRG1_PRU1_GPO6.PRG1_RGMII2_RXC */ AM64X_IOPAD(0x0134, PIN_OUTPUT, 2) /* (AA10) PRG1_PRU1_GPO11.PRG1_RGMII2_TD0 */ AM64X_IOPAD(0x0138, PIN_OUTPUT, 2) /* (V10) PRG1_PRU1_GPO12.PRG1_RGMII2_TD1 */ AM64X_IOPAD(0x013c, PIN_OUTPUT, 2) /* (U10) PRG1_PRU1_GPO13.PRG1_RGMII2_TD2 */ AM64X_IOPAD(0x0140, PIN_OUTPUT, 2) /* (AA11) PRG1_PRU1_GPO14.PRG1_RGMII2_TD3 */ AM64X_IOPAD(0x0144, PIN_OUTPUT, 2) /* (Y11) PRG1_PRU1_GPO15.PRG1_RGMII2_TX_CTL */ AM64X_IOPAD(0x0148, PIN_OUTPUT, 2) /* (AA4) PRG1_PRU1_GPO16.PRG1_RGMII2_TXC */ >; }; &icssg1_mdio { status = "okay"; pinctrl-names = "default"; pinctrl-0 = <&icssg1_mdio_pins_default &clkout1_pins_default>; icssg1_phy1: ethernet-phy@1 { status = "okay"; compatible = "ethernet-phy-ieee802.3-c22"; reg = <0x1>; reset-gpios = <&main_gpio1 17 GPIO_ACTIVE_LOW>; reset-assert-us = <1000>; reset-deassert-us = <1000>; }; icssg1_phy2: ethernet-phy@2 { status = "okay"; compatible = "ethernet-phy-ieee802.3-c22"; reg = <0x0>; reset-gpios = <&main_gpio1 17 GPIO_ACTIVE_LOW>; reset-assert-us = <1000>; reset-deassert-us = <1000>; }; }; icssg1_eth: icssg1-eth { compatible = "ti,am642-icssg-prueth"; pinctrl-names = "default"; pinctrl-0 = <&icssg1_rgmii1_pins_default &icssg1_rgmii2_pins_default>; sram = <&oc_sram>; ti,prus = <&pru1_0>, <&rtu1_0>, <&tx_pru1_0>, <&pru1_1>, <&rtu1_1>, <&tx_pru1_1>; firmware-name = "ti-pruss/am65x-sr2-pru0-prueth-fw.elf", "ti-pruss/am65x-sr2-rtu0-prueth-fw.elf", "ti-pruss/am65x-sr2-txpru0-prueth-fw.elf", "ti-pruss/am65x-sr2-pru1-prueth-fw.elf", "ti-pruss/am65x-sr2-rtu1-prueth-fw.elf", "ti-pruss/am65x-sr2-txpru1-prueth-fw.elf"; ti,pruss-gp-mux-sel = <2>, /* MII mode */ <2>, <2>, <2>, /* MII mode */ <2>, <2>; ti,mii-g-rt = <&icssg1_mii_g_rt>; ti,mii-rt = <&icssg1_mii_rt>; ti,iep = <&icssg1_iep0>, <&icssg1_iep1>; interrupt-parent = <&icssg1_intc>; interrupts = <24 0 2>, <25 1 3>; interrupt-names = "tx_ts0", "tx_ts1"; dmas = <&main_pktdma 0xc200 15>, /* egress slice 0 */ <&main_pktdma 0xc201 15>, /* egress slice 0 */ <&main_pktdma 0xc202 15>, /* egress slice 0 */ <&main_pktdma 0xc203 15>, /* egress slice 0 */ <&main_pktdma 0xc204 15>, /* egress slice 1 */ <&main_pktdma 0xc205 15>, /* egress slice 1 */ <&main_pktdma 0xc206 15>, /* egress slice 1 */ <&main_pktdma 0xc207 15>, /* egress slice 1 */ <&main_pktdma 0x4200 15>, /* ingress slice 0 */ <&main_pktdma 0x4201 15>; /* ingress slice 1 */ dma-names = "tx0-0", "tx0-1", "tx0-2", "tx0-3", "tx1-0", "tx1-1", "tx1-2", "tx1-3", "rx0", "rx1"; ethernet-ports { #address-cells = <1>; #size-cells = <0>; icssg1_emac0: port@0 { reg = <0>; phy-handle = <&icssg1_phy1>; phy-mode = "rgmii-txid"; ti,syscon-rgmii-delay = <&main_conf 0x4110>; /* Filled in by bootloader */ local-mac-address = [00 00 00 00 00 00]; }; icssg1_emac1: port@1 { reg = <1>; phy-handle = <&icssg1_phy2>; phy-mode = "rgmii-txid"; ti,syscon-rgmii-delay = <&main_conf 0x4114>; /* Filled in by bootloader */ local-mac-address = [00 00 00 00 00 00]; }; }; }; };
We are using phy. we are using kernel 6.11 and a custom yocto build.
Thanks