Add device tree overlay to enable both ICSSG1 ports available on AM64x-EVM in MII mode. Signed-off-by: MD Danish Anwar <danishanwar@xxxxxx> --- NOTE: This patch depends on [1]. Without [1] mii mode will not work for ICSSG. Patch [1] is currently posted to net subsystem. This patch is based on next-20240423 linux-next tag. [1] https://lore.kernel.org/all/20240423084828.1309294-1-danishanwar@xxxxxx/ arch/arm64/boot/dts/ti/Makefile | 4 + .../ti/k3-am642-evm-icssg1-dualemac-mii.dtso | 101 ++++++++++++++++++ 2 files changed, 105 insertions(+) create mode 100644 arch/arm64/boot/dts/ti/k3-am642-evm-icssg1-dualemac-mii.dtso diff --git a/arch/arm64/boot/dts/ti/Makefile b/arch/arm64/boot/dts/ti/Makefile index c76b41f86527..08c974b05616 100644 --- a/arch/arm64/boot/dts/ti/Makefile +++ b/arch/arm64/boot/dts/ti/Makefile @@ -44,6 +44,7 @@ k3-am642-hummingboard-t-usb3-dtbs := \ k3-am642-hummingboard-t.dtb k3-am642-hummingboard-t-usb3.dtbo dtb-$(CONFIG_ARCH_K3) += k3-am642-evm.dtb dtb-$(CONFIG_ARCH_K3) += k3-am642-evm-icssg1-dualemac.dtbo +dtb-$(CONFIG_ARCH_K3) += k3-am642-evm-icssg1-dualemac-mii.dtbo dtb-$(CONFIG_ARCH_K3) += k3-am642-hummingboard-t.dtb dtb-$(CONFIG_ARCH_K3) += k3-am642-hummingboard-t-pcie.dtb dtb-$(CONFIG_ARCH_K3) += k3-am642-hummingboard-t-usb3.dtb @@ -132,6 +133,8 @@ k3-am62p5-sk-csi2-tevi-ov5640-dtbs := k3-am62p5-sk.dtb \ k3-am62x-sk-csi2-tevi-ov5640.dtbo k3-am642-evm-icssg1-dualemac-dtbs := \ k3-am642-evm.dtb k3-am642-evm-icssg1-dualemac.dtbo +k3-am642-evm-icssg1-dualemac-mii-dtbs := \ + k3-am642-evm.dtb k3-am642-evm-icssg1-dualemac-mii.dtbo k3-am642-tqma64xxl-mbax4xxl-sdcard-dtbs := \ k3-am642-tqma64xxl-mbax4xxl.dtb k3-am64-tqma64xxl-mbax4xxl-sdcard.dtbo k3-am642-tqma64xxl-mbax4xxl-wlan-dtbs := \ @@ -160,6 +163,7 @@ dtb- += k3-am625-beagleplay-csi2-ov5640.dtb \ k3-am62p5-sk-csi2-ov5640.dtb \ k3-am62p5-sk-csi2-tevi-ov5640.dtb \ k3-am642-evm-icssg1-dualemac.dtb \ + k3-am642-evm-icssg1-dualemac-mii.dtb \ k3-am642-tqma64xxl-mbax4xxl-sdcard.dtb \ k3-am642-tqma64xxl-mbax4xxl-wlan.dtb \ k3-am68-sk-base-board-csi2-dual-imx219-dtbs \ diff --git a/arch/arm64/boot/dts/ti/k3-am642-evm-icssg1-dualemac-mii.dtso b/arch/arm64/boot/dts/ti/k3-am642-evm-icssg1-dualemac-mii.dtso new file mode 100644 index 000000000000..3081b5c64886 --- /dev/null +++ b/arch/arm64/boot/dts/ti/k3-am642-evm-icssg1-dualemac-mii.dtso @@ -0,0 +1,101 @@ +// SPDX-License-Identifier: GPL-2.0 +/** + * DT overlay for enabling both ICSSG1 port on AM642 EVM in MII mode + * + * Copyright (C) 2020-2024 Texas Instruments Incorporated - https://www.ti.com/ + */ + +/dts-v1/; +/plugin/; +#include <dt-bindings/gpio/gpio.h> +#include "k3-pinctrl.h" + +&{/} { + aliases { + ethernet1 = "/icssg1-eth/ethernet-ports/port@1"; + }; + + 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>; + }; + }; + }; +}; + +&main_pmx0 { + icssg1_mii1_pins_default: icssg1-mii1-default-pins { + pinctrl-single,pins = < + AM64X_IOPAD(0x00f8, PIN_INPUT, 1) /* (V9) PRG1_PRU0_GPO16.PR1_MII_MT0_CLK */ + AM64X_IOPAD(0x00f4, PIN_OUTPUT, 0) /* (Y9) PRG1_PRU0_GPO15.PR1_MII0_TXEN */ + AM64X_IOPAD(0x00f0, PIN_OUTPUT, 0) /* (AA9) PRG1_PRU0_GPO14.PR1_MII0_TXD3 */ + AM64X_IOPAD(0x00ec, PIN_OUTPUT, 0) /* (W9) PRG1_PRU0_GPO13.PR1_MII0_TXD2 */ + AM64X_IOPAD(0x00e8, PIN_OUTPUT, 0) /* (U9) PRG1_PRU0_GPO12.PR1_MII0_TXD1 */ + AM64X_IOPAD(0x00e4, PIN_OUTPUT, 0) /* (AA8) PRG1_PRU0_GPO11.PR1_MII0_TXD0 */ + AM64X_IOPAD(0x00c8, PIN_INPUT, 1) /* (Y8) PRG1_PRU0_GPO4.PR1_MII0_RXDV */ + AM64X_IOPAD(0x00d0, PIN_INPUT, 1) /* (AA7) PRG1_PRU0_GPO6.PR1_MII_MR0_CLK */ + AM64X_IOPAD(0x00c4, PIN_INPUT, 1) /* (V8) PRG1_PRU0_GPO3.PR1_MII0_RXD3 */ + AM64X_IOPAD(0x00c0, PIN_INPUT, 1) /* (W8) PRG1_PRU0_GPO2.PR1_MII0_RXD2 */ + AM64X_IOPAD(0x00cc, PIN_INPUT, 1) /* (V13) PRG1_PRU0_GPO5.PR1_MII0_RXER */ + AM64X_IOPAD(0x00bc, PIN_INPUT, 1) /* (U8) PRG1_PRU0_GPO1.PR1_MII0_RXD1 */ + AM64X_IOPAD(0x00b8, PIN_INPUT, 1) /* (Y7) PRG1_PRU0_GPO0.PR1_MII0_RXD0 */ + AM64X_IOPAD(0x00d8, PIN_INPUT, 1) /* (W13) PRG1_PRU0_GPO8.PR1_MII0_RXLINK */ + >; + }; + + icssg1_mii2_pins_default: icssg1-mii2-default-pins { + pinctrl-single,pins = < + AM64X_IOPAD(0x0148, PIN_INPUT, 1) /* (Y10) PRG1_PRU1_GPO16.PR1_MII_MT1_CLK */ + AM64X_IOPAD(0x0144, PIN_OUTPUT, 0) /* (Y11) PRG1_PRU1_GPO15.PR1_MII1_TXEN */ + AM64X_IOPAD(0x0140, PIN_OUTPUT, 0) /* (AA11) PRG1_PRU1_GPO14.PR1_MII1_TXD3 */ + AM64X_IOPAD(0x013c, PIN_OUTPUT, 0) /* (U10) PRG1_PRU1_GPO13.PR1_MII1_TXD2 */ + AM64X_IOPAD(0x0138, PIN_OUTPUT, 0) /* (V10) PRG1_PRU1_GPO12.PR1_MII1_TXD1 */ + AM64X_IOPAD(0x0134, PIN_OUTPUT, 0) /* (AA10) PRG1_PRU1_GPO11.PR1_MII1_TXD0 */ + AM64X_IOPAD(0x0118, PIN_INPUT, 1) /* (W12) PRG1_PRU1_GPO4.PR1_MII1_RXDV */ + AM64X_IOPAD(0x0120, PIN_INPUT, 1) /* (U11) PRG1_PRU1_GPO6.PR1_MII_MR1_CLK */ + AM64X_IOPAD(0x0114, PIN_INPUT, 1) /* (Y12) PRG1_PRU1_GPO3.PR1_MII1_RXD3 */ + AM64X_IOPAD(0x0110, PIN_INPUT, 1) /* (AA12) PRG1_PRU1_GPO2.PR1_MII1_RXD2 */ + AM64X_IOPAD(0x011c, PIN_INPUT, 1) /* (AA13) PRG1_PRU1_GPO5.PR1_MII1_RXER */ + AM64X_IOPAD(0x010c, PIN_INPUT, 1) /* (V11) PRG1_PRU1_GPO1.PR1_MII1_RXD1 */ + AM64X_IOPAD(0x0108, PIN_INPUT, 1) /* (W11) PRG1_PRU1_GPO0.PR1_MII1_RXD0 */ + AM64X_IOPAD(0x0128, PIN_INPUT, 1) /* (U12) PRG1_PRU1_GPO8.PR1_MII1_RXLINK */ + >; + }; +}; + +&cpsw3g { + pinctrl-0 = <&rgmii1_pins_default>; +}; + +&cpsw_port2 { + status = "disabled"; +}; + +&mdio_mux_1 { + status = "disabled"; +}; + +&icssg1_eth { + pinctrl-0 = <&icssg1_mii1_pins_default &icssg1_mii2_pins_default>; +}; + +&icssg1_emac0 { + phy-mode = "mii"; +}; + +&icssg1_emac1 { + status = "okay"; + phy-handle = <&icssg1_phy2>; + phy-mode = "mii"; +}; -- 2.34.1
