From: Vignesh Raghavendra Date: Thu, 4 Mar 2021 21:10:37 +0000 (+0200) Subject: arm64: dts: ti: k3-am642-evm: add CPSW3g DT nodes X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=985204ecae1c37d55372874ff9146231d28fccc6;p=linux.git arm64: dts: ti: k3-am642-evm: add CPSW3g DT nodes On am642-evm the CPSW3g ext. Port1 is directly connected to TI DP83867 PHY and Port2 is connected to TI DP83869 PHY which is shared with ICSS subsystem. The TI DP83869 PHY MII interface is configured using pinmux for CPSW3g, while MDIO bus is connected through GPIO controllable 2:1 TMUX154E switch (MDIO GPIO MUX) which has to be configured to route MDIO bus from CPSW3g to TI DP83869 PHY. Hence add networking support for am642-evm: - add CPSW3g MDIO and RGMII pinmux entries for both ext. ports; - add CPSW3g nodes; - add mdio-mux-multiplexer DT nodes to represent above topology. Signed-off-by: Vignesh Raghavendra Signed-off-by: Grygorii Strashko Signed-off-by: Nishanth Menon Reviewed-by: Lokesh Vutla Link: https://lore.kernel.org/r/20210304211038.12511-4-grygorii.strashko@ti.com --- diff --git a/arch/arm64/boot/dts/ti/k3-am642-evm.dts b/arch/arm64/boot/dts/ti/k3-am642-evm.dts index 1f1787750fef8..962ef807e286d 100644 --- a/arch/arm64/boot/dts/ti/k3-am642-evm.dts +++ b/arch/arm64/boot/dts/ti/k3-am642-evm.dts @@ -6,6 +6,8 @@ /dts-v1/; #include +#include +#include #include "k3-am642.dtsi" / { @@ -101,6 +103,31 @@ default-state = "off"; }; }; + + mdio_mux: mux-controller { + compatible = "gpio-mux"; + #mux-control-cells = <0>; + + mux-gpios = <&exp1 12 GPIO_ACTIVE_HIGH>; + }; + + mdio-mux-1 { + compatible = "mdio-mux-multiplexer"; + mux-controls = <&mdio_mux>; + mdio-parent-bus = <&cpsw3g_mdio>; + #address-cells = <1>; + #size-cells = <0>; + + mdio@1 { + reg = <0x1>; + #address-cells = <1>; + #size-cells = <0>; + + cpsw3g_phy3: ethernet-phy@3 { + reg = <3>; + }; + }; + }; }; &main_pmx0 { @@ -133,6 +160,47 @@ AM64X_IOPAD(0x026c, PIN_INPUT_PULLUP, 0) /* (B19) I2C1_SDA */ >; }; + + mdio1_pins_default: mdio1-pins-default { + pinctrl-single,pins = < + AM64X_IOPAD(0x01fc, PIN_OUTPUT, 4) /* (R2) PRG0_PRU1_GPO19.MDIO0_MDC */ + AM64X_IOPAD(0x01f8, PIN_INPUT, 4) /* (P5) PRG0_PRU1_GPO18.MDIO0_MDIO */ + >; + }; + + rgmii1_pins_default: rgmii1-pins-default { + pinctrl-single,pins = < + AM64X_IOPAD(0x01cc, PIN_INPUT, 4) /* (W5) PRG0_PRU1_GPO7.RGMII1_RD0 */ + AM64X_IOPAD(0x01d4, PIN_INPUT, 4) /* (Y5) PRG0_PRU1_GPO9.RGMII1_RD1 */ + AM64X_IOPAD(0x01d8, PIN_INPUT, 4) /* (V6) PRG0_PRU1_GPO10.RGMII1_RD2 */ + AM64X_IOPAD(0x01f4, PIN_INPUT, 4) /* (V5) PRG0_PRU1_GPO17.RGMII1_RD3 */ + AM64X_IOPAD(0x0188, PIN_INPUT, 4) /* (AA5) PRG0_PRU0_GPO10.RGMII1_RXC */ + AM64X_IOPAD(0x0184, PIN_INPUT, 4) /* (W6) PRG0_PRU0_GPO9.RGMII1_RX_CTL */ + AM64X_IOPAD(0x0124, PIN_OUTPUT, 4) /* (V15) PRG1_PRU1_GPO7.RGMII1_TD0 */ + AM64X_IOPAD(0x012c, PIN_OUTPUT, 4) /* (V14) PRG1_PRU1_GPO9.RGMII1_TD1 */ + AM64X_IOPAD(0x0130, PIN_OUTPUT, 4) /* (W14) PRG1_PRU1_GPO10.RGMII1_TD2 */ + AM64X_IOPAD(0x014c, PIN_OUTPUT, 4) /* (AA14) PRG1_PRU1_GPO17.RGMII1_TD3 */ + AM64X_IOPAD(0x00e0, PIN_OUTPUT, 4) /* (U14) PRG1_PRU0_GPO10.RGMII1_TXC */ + AM64X_IOPAD(0x00dc, PIN_OUTPUT, 4) /* (U15) PRG1_PRU0_GPO9.RGMII1_TX_CTL */ + >; + }; + + rgmii2_pins_default: rgmii2-pins-default { + pinctrl-single,pins = < + AM64X_IOPAD(0x0108, PIN_INPUT, 4) /* (W11) PRG1_PRU1_GPO0.RGMII2_RD0 */ + AM64X_IOPAD(0x010c, PIN_INPUT, 4) /* (V11) PRG1_PRU1_GPO1.RGMII2_RD1 */ + AM64X_IOPAD(0x0110, PIN_INPUT, 4) /* (AA12) PRG1_PRU1_GPO2.RGMII2_RD2 */ + AM64X_IOPAD(0x0114, PIN_INPUT, 4) /* (Y12) PRG1_PRU1_GPO3.RGMII2_RD3 */ + AM64X_IOPAD(0x0120, PIN_INPUT, 4) /* (U11) PRG1_PRU1_GPO6.RGMII2_RXC */ + AM64X_IOPAD(0x0118, PIN_INPUT, 4) /* (W12) PRG1_PRU1_GPO4.RGMII2_RX_CTL */ + AM64X_IOPAD(0x0134, PIN_OUTPUT, 4) /* (AA10) PRG1_PRU1_GPO11.RGMII2_TD0 */ + AM64X_IOPAD(0x0138, PIN_OUTPUT, 4) /* (V10) PRG1_PRU1_GPO12.RGMII2_TD1 */ + AM64X_IOPAD(0x013c, PIN_OUTPUT, 4) /* (U10) PRG1_PRU1_GPO13.RGMII2_TD2 */ + AM64X_IOPAD(0x0140, PIN_OUTPUT, 4) /* (AA11) PRG1_PRU1_GPO14.RGMII2_TD3 */ + AM64X_IOPAD(0x0148, PIN_OUTPUT, 4) /* (Y10) PRG1_PRU1_GPO16.RGMII2_TXC */ + AM64X_IOPAD(0x0144, PIN_OUTPUT, 4) /* (Y11) PRG1_PRU1_GPO15.RGMII2_TX_CTL */ + >; + }; }; &main_uart0 { @@ -244,3 +312,28 @@ ti,driver-strength-ohm = <50>; disable-wp; }; + +&cpsw3g { + pinctrl-names = "default"; + pinctrl-0 = <&mdio1_pins_default + &rgmii1_pins_default + &rgmii2_pins_default>; +}; + +&cpsw_port1 { + phy-mode = "rgmii-rxid"; + phy-handle = <&cpsw3g_phy0>; +}; + +&cpsw_port2 { + phy-mode = "rgmii-rxid"; + phy-handle = <&cpsw3g_phy3>; +}; + +&cpsw3g_mdio { + cpsw3g_phy0: ethernet-phy@0 { + reg = <0>; + ti,rx-internal-delay = ; + ti,fifo-depth = ; + }; +};