The CPSW9G instance of the CPSW Ethernet Switch supports USXGMII mode with MAC Ports 1 and 2 of the instance, which are connected to ENET Expansion 1 and ENET Expansion 2 slots on the EVM respectively, through the Serdes2 instance of the SERDES. Enable CPSW9G MAC Ports 1 and 2 in fixed-link configuration USXGMII mode at 5 Gbps each. Signed-off-by: Siddharth Vadapalli <s-vadapalli@xxxxxx> --- arch/arm64/boot/dts/ti/Makefile | 1 + .../ti/k3-j784s4-evm-usxgmii-exp1-exp2.dtso | 72 +++++++++++++++++++ 2 files changed, 73 insertions(+) create mode 100644 arch/arm64/boot/dts/ti/k3-j784s4-evm-usxgmii-exp1-exp2.dtso diff --git a/arch/arm64/boot/dts/ti/Makefile b/arch/arm64/boot/dts/ti/Makefile index 88c43f1f211b..8ac7507f60ba 100644 --- a/arch/arm64/boot/dts/ti/Makefile +++ b/arch/arm64/boot/dts/ti/Makefile @@ -47,6 +47,7 @@ dtb-$(CONFIG_ARCH_K3) += k3-j721s2-common-proc-board.dtb dtb-$(CONFIG_ARCH_K3) += k3-am69-sk.dtb dtb-$(CONFIG_ARCH_K3) += k3-j784s4-evm.dtb dtb-$(CONFIG_ARCH_K3) += k3-j784s4-evm-quad-port-eth-exp1.dtbo +dtb-$(CONFIG_ARCH_K3) += k3-j784s4-evm-usxgmii-exp1-exp2.dtbo # Enable support for device-tree overlays DTC_FLAGS_k3-am6548-iot2050-advanced-m2 += -@ diff --git a/arch/arm64/boot/dts/ti/k3-j784s4-evm-usxgmii-exp1-exp2.dtso b/arch/arm64/boot/dts/ti/k3-j784s4-evm-usxgmii-exp1-exp2.dtso new file mode 100644 index 000000000000..1482a61d5487 --- /dev/null +++ b/arch/arm64/boot/dts/ti/k3-j784s4-evm-usxgmii-exp1-exp2.dtso @@ -0,0 +1,72 @@ +// SPDX-License-Identifier: GPL-2.0 +/** + * DT Overlay for CPSW9G in dual port fixed-link USXGMII mode using ENET-1 + * and ENET-2 Expansion slots of J784S4 EVM. + * + * Copyright (C) 2023 Texas Instruments Incorporated - https://www.ti.com/ + */ + +/dts-v1/; +/plugin/; + +#include <dt-bindings/gpio/gpio.h> +#include <dt-bindings/mux/ti-serdes.h> +#include <dt-bindings/phy/phy-cadence.h> +#include <dt-bindings/phy/phy.h> + +&main_cpsw0 { + status = "okay"; + pinctrl-names = "default"; +}; + +&main_cpsw0_port1 { + status = "okay"; + phy-mode = "usxgmii"; + mac-address = [00 00 00 00 00 00]; + phys = <&cpsw0_phy_gmii_sel 1>, <&serdes2_usxgmii_link>; + phy-names = "mac", "serdes"; + fixed-link { + speed = <5000>; + full-duplex; + }; +}; + +&main_cpsw0_port2 { + status = "okay"; + phy-mode = "usxgmii"; + mac-address = [00 00 00 00 00 00]; + phys = <&cpsw0_phy_gmii_sel 2>, <&serdes2_usxgmii_link>; + phy-names = "mac", "serdes"; + fixed-link { + speed = <5000>; + full-duplex; + }; +}; + +&serdes_wiz2 { + status = "okay"; + assigned-clock-parents = <&k3_clks 406 9>; +}; + +&serdes2 { + status = "okay"; + #address-cells = <1>; + #size-cells = <0>; + + serdes2_usxgmii_link: phy@2 { + reg = <2>; + cdns,num-lanes = <2>; + #phy-cells = <0>; + cdns,phy-type = <PHY_TYPE_USXGMII>; + resets = <&serdes_wiz2 3>, <&serdes_wiz2 4>; + }; +}; + +&serdes_ln_ctrl { + idle-states = <J784S4_SERDES0_LANE0_PCIE1_LANE0>, <J784S4_SERDES0_LANE1_PCIE1_LANE1>, + <J784S4_SERDES0_LANE2_IP3_UNUSED>, <J784S4_SERDES0_LANE3_USB>, + <J784S4_SERDES1_LANE0_PCIE0_LANE0>, <J784S4_SERDES1_LANE1_PCIE0_LANE1>, + <J784S4_SERDES1_LANE2_PCIE0_LANE2>, <J784S4_SERDES1_LANE3_PCIE0_LANE3>, + <J784S4_SERDES2_LANE0_IP2_UNUSED>, <J784S4_SERDES2_LANE1_IP2_UNUSED>, + <J784S4_SERDES2_LANE2_QSGMII_LANE1>, <J784S4_SERDES2_LANE3_QSGMII_LANE2>; +}; -- 2.25.1
