The am642-evm doesn't allow to enable 2 x CPSW3g ports and 2 x ICSSG1 ports all together, so base k3-am642-evm.dts enables by default 2 x CPSW3g ports and 1 x ICSSG1 ports, but it also possible to support 1 x CPSW3g ports and 2 x ICSSG1 ports configuration. This patch adds overlay to support 1 x CPSW3g ports and 2 x ICSSG1 ports configuration: - Add label name 'mdio_mux_1' for 'mdio-mux-1' node so that the node 'mdio-mux-1' can be disabled in the overlay using the label name. - disable 2nd CPSW3g port - update CPSW3g pinmuxes to not use RGMII2 - disable mdio-mux-1 and define mdio-mux-2 to route ICSSG1 MDIO to the shared DP83869 PHY - add and enable ICSSG1 RGMII2 pinmuxes - enable ICSSG1 MII1 port Signed-off-by: MD Danish Anwar <danishanwar@xxxxxx> --- arch/arm64/boot/dts/ti/Makefile | 5 ++ .../dts/ti/k3-am642-evm-icssg1-dualemac.dtso | 75 +++++++++++++++++++ arch/arm64/boot/dts/ti/k3-am642-evm.dts | 2 +- 3 files changed, 81 insertions(+), 1 deletion(-) create mode 100644 arch/arm64/boot/dts/ti/k3-am642-evm-icssg1-dualemac.dtso diff --git a/arch/arm64/boot/dts/ti/Makefile b/arch/arm64/boot/dts/ti/Makefile index 52c1dc910308..320b2fae5730 100644 --- a/arch/arm64/boot/dts/ti/Makefile +++ b/arch/arm64/boot/dts/ti/Makefile @@ -43,6 +43,7 @@ dtb-$(CONFIG_ARCH_K3) += k3-am642-sk.dtb dtb-$(CONFIG_ARCH_K3) += k3-am642-tqma64xxl-mbax4xxl.dtb dtb-$(CONFIG_ARCH_K3) += k3-am64-tqma64xxl-mbax4xxl-sdcard.dtbo dtb-$(CONFIG_ARCH_K3) += k3-am64-tqma64xxl-mbax4xxl-wlan.dtbo +dtb-$(CONFIG_ARCH_K3) += k3-am642-evm-icssg1-dualemac.dtbo # Boards with AM65x SoC k3-am654-gp-evm-dtbs := k3-am654-base-board.dtb k3-am654-base-board-rocktech-rk101-panel.dtbo @@ -105,6 +106,8 @@ k3-am642-tqma64xxl-mbax4xxl-sdcard-dtbs := \ k3-am642-tqma64xxl-mbax4xxl.dtb k3-am64-tqma64xxl-mbax4xxl-sdcard.dtbo k3-am642-tqma64xxl-mbax4xxl-wlan-dtbs := \ k3-am642-tqma64xxl-mbax4xxl.dtb k3-am64-tqma64xxl-mbax4xxl-wlan.dtbo +k3-am642-evm-icssg1-dualemac-dtbs := \ + k3-am642-evm.dtb k3-am642-evm-icssg1-dualemac.dtbo k3-j721e-evm-pcie0-ep-dtbs := k3-j721e-common-proc-board.dtb \ k3-j721e-evm-pcie0-ep.dtbo k3-j721s2-evm-pcie1-ep-dtbs := k3-j721s2-common-proc-board.dtb \ @@ -120,6 +123,7 @@ dtb- += k3-am625-beagleplay-csi2-ov5640.dtb \ k3-am62a7-sk-csi2-ov5640.dtb \ k3-am642-tqma64xxl-mbax4xxl-sdcard.dtb \ k3-am642-tqma64xxl-mbax4xxl-wlan.dtb \ + k3-am642-evm-icssg1-dualemac.dtb \ k3-j721e-evm-pcie0-ep.dtb \ k3-j721s2-evm-pcie1-ep.dtb @@ -129,6 +133,7 @@ DTC_FLAGS_k3-am625-sk += -@ DTC_FLAGS_k3-am62-lp-sk += -@ DTC_FLAGS_k3-am62a7-sk += -@ DTC_FLAGS_k3-am642-tqma64xxl-mbax4xxl += -@ +DTC_FLAGS_k3-am642-evm += -@ DTC_FLAGS_k3-am6548-iot2050-advanced-m2 += -@ DTC_FLAGS_k3-j721e-common-proc-board += -@ DTC_FLAGS_k3-j721s2-common-proc-board += -@ diff --git a/arch/arm64/boot/dts/ti/k3-am642-evm-icssg1-dualemac.dtso b/arch/arm64/boot/dts/ti/k3-am642-evm-icssg1-dualemac.dtso new file mode 100644 index 000000000000..b2b1a6252e73 --- /dev/null +++ b/arch/arm64/boot/dts/ti/k3-am642-evm-icssg1-dualemac.dtso @@ -0,0 +1,75 @@ +// SPDX-License-Identifier: GPL-2.0 +/** + * DT overlay for enabling 2nd ICSSG1 port on AM642 EVM + * + * Copyright (C) 2023 Texas Instruments Incorporated - https://www.ti.com/ + */ + +/dts-v1/; +/plugin/; + +#include <dt-bindings/gpio/gpio.h> +#include "k3-pinctrl.h" + +&{/} { + mdio-mux-2 { + compatible = "mdio-mux-multiplexer"; + mux-controls = <&mdio_mux>; + mdio-parent-bus = <&icssg1_mdio>; + #address-cells = <1>; + #size-cells = <0>; + + mdio@0 { + reg = <0x0>; + #address-cells = <1>; + #size-cells = <0>; + + icssg1_phy2: ethernet-phy@3 { + reg = <3>; + tx-internal-delay-ps = <250>; + rx-internal-delay-ps = <2000>; + }; + }; + }; +}; + +&main_pmx0 { + icssg1_rgmii2_pins_default: icssg1-rgmii2-default-pins { + pinctrl-single,pins = < + AM64X_IOPAD(0x0108, PIN_INPUT, 2) /* (W11) PRG1_PRU1_GPO0.RGMII2_RD0 */ + AM64X_IOPAD(0x010c, PIN_INPUT, 2) /* (V11) PRG1_PRU1_GPO1.RGMII2_RD1 */ + AM64X_IOPAD(0x0110, PIN_INPUT, 2) /* (AA12) PRG1_PRU1_GPO2.RGMII2_RD2 */ + AM64X_IOPAD(0x0114, PIN_INPUT, 2) /* (Y12) PRG1_PRU1_GPO3.RGMII2_RD3 */ + AM64X_IOPAD(0x0120, PIN_INPUT, 2) /* (U11) PRG1_PRU1_GPO6.RGMII2_RXC */ + AM64X_IOPAD(0x0118, PIN_INPUT, 2) /* (W12) PRG1_PRU1_GPO4.RGMII2_RX_CTL */ + AM64X_IOPAD(0x0134, PIN_OUTPUT, 2) /* (AA10) PRG1_PRU1_GPO11.RGMII2_TD0 */ + AM64X_IOPAD(0x0138, PIN_OUTPUT, 2) /* (V10) PRG1_PRU1_GPO12.RGMII2_TD1 */ + AM64X_IOPAD(0x013c, PIN_OUTPUT, 2) /* (U10) PRG1_PRU1_GPO13.RGMII2_TD2 */ + AM64X_IOPAD(0x0140, PIN_OUTPUT, 2) /* (AA11) PRG1_PRU1_GPO14.RGMII2_TD3 */ + AM64X_IOPAD(0x0148, PIN_OUTPUT, 2) /* (Y10) PRG1_PRU1_GPO16.RGMII2_TXC */ + AM64X_IOPAD(0x0144, PIN_OUTPUT, 2) /* (Y11) PRG1_PRU1_GPO15.RGMII2_TX_CTL */ + >; + }; +}; + +&cpsw3g { + pinctrl-0 = <&rgmii1_pins_default>; +}; + +&cpsw_port2 { + status = "disabled"; +}; + +&mdio_mux_1 { + status = "disabled"; +}; + +&icssg1_eth { + pinctrl-0 = <&icssg1_rgmii1_pins_default>, <&icssg1_rgmii2_pins_default>; +}; + +&icssg1_emac1 { + status = "okay"; + phy-handle = <&icssg1_phy2>; + phy-mode = "rgmii-id"; +}; diff --git a/arch/arm64/boot/dts/ti/k3-am642-evm.dts b/arch/arm64/boot/dts/ti/k3-am642-evm.dts index c08b0223be52..6ae43c12419f 100644 --- a/arch/arm64/boot/dts/ti/k3-am642-evm.dts +++ b/arch/arm64/boot/dts/ti/k3-am642-evm.dts @@ -200,7 +200,7 @@ mdio_mux: mux-controller { mux-gpios = <&exp1 12 GPIO_ACTIVE_HIGH>; }; - mdio-mux-1 { + mdio_mux_1: mdio-mux-1 { compatible = "mdio-mux-multiplexer"; mux-controls = <&mdio_mux>; mdio-parent-bus = <&cpsw3g_mdio>; -- 2.34.1
