Enable PCIe0 instance of PCIe in Root Complex mode of operation with Lane 0 of the SERDES1 instance of SERDES. Also enable USB0 instance of USB to interface with the Type-C port via the USB hub, by configuring the pin P05 of the GPIO expander on the EVM. Enable USB1 instance of USB in SuperSpeed mode of operation with Lane 0 of the SERDES0 instance of SERDES. Co-developed-by: Ravi Gunasekaran <r-gunasekaran@xxxxxx> Signed-off-by: Ravi Gunasekaran <r-gunasekaran@xxxxxx> Signed-off-by: Siddharth Vadapalli <s-vadapalli@xxxxxx> --- v4: https://lore.kernel.org/r/20240601121554.2860403-8-s-vadapalli@xxxxxx/ Changes since v4: - Based on Andrew's feedback at: https://lore.kernel.org/r/183a9d15-939e-433b-84ba-8a64eb8ef3ec@xxxxxx/ the `status = "okay";` line has been moved to the end of the `pcie0_rc` node referenced in k3-j722s-evm.dts following the updated ordering rules. - The SERDES1 node has been enabled in the k3-j722s-evm.dts file since it has been disabled in the k3-j722s-main.dtsi file in the previous patch. arch/arm64/boot/dts/ti/k3-j722s-evm.dts | 73 +++++++++++++++++++++++++ 1 file changed, 73 insertions(+) diff --git a/arch/arm64/boot/dts/ti/k3-j722s-evm.dts b/arch/arm64/boot/dts/ti/k3-j722s-evm.dts index bf3c246d13d1..253b02f0437d 100644 --- a/arch/arm64/boot/dts/ti/k3-j722s-evm.dts +++ b/arch/arm64/boot/dts/ti/k3-j722s-evm.dts @@ -9,7 +9,9 @@ /dts-v1/; #include <dt-bindings/net/ti-dp83867.h> +#include <dt-bindings/phy/phy.h> #include "k3-j722s.dtsi" +#include "k3-serdes.h" / { compatible = "ti,j722s-evm", "ti,j722s"; @@ -202,6 +204,12 @@ J722S_IOPAD(0x0130, PIN_OUTPUT, 0) /* (AG26) RGMII1_TXC */ J722S_IOPAD(0x012c, PIN_OUTPUT, 0) /* (AF25) RGMII1_TX_CTL */ >; }; + + main_usb1_pins_default: main-usb1-default-pins { + pinctrl-single,pins = < + J722S_IOPAD(0x0258, PIN_INPUT, 0) /* (B27) USB1_DRVVBUS */ + >; + }; }; &cpsw3g { @@ -301,6 +309,13 @@ exp1: gpio@23 { "PCIe0_1L_RC_RSTz", "PCIe0_1L_PRSNT#", "ENET1_EXP_SPARE2", "ENET1_EXP_PWRDN", "PD_I2ENET1_I2CMUX_SELC_IRQ", "ENET1_EXP_RESETZ"; + + p05-hog { + /* P05 - USB2.0_MUX_SEL */ + gpio-hog; + gpios = <5 GPIO_ACTIVE_HIGH>; + output-high; + }; }; }; @@ -384,3 +399,61 @@ &sdhci1 { status = "okay"; bootph-all; }; + +&serdes_ln_ctrl { + idle-states = <J722S_SERDES0_LANE0_USB>, + <J722S_SERDES1_LANE0_PCIE0_LANE0>; +}; + +&serdes0 { + status = "okay"; + serdes0_usb_link: phy@0 { + reg = <0>; + cdns,num-lanes = <1>; + #phy-cells = <0>; + cdns,phy-type = <PHY_TYPE_USB3>; + resets = <&serdes_wiz0 1>; + }; +}; + +&serdes1 { + status = "okay"; + serdes1_pcie_link: phy@0 { + reg = <0>; + cdns,num-lanes = <1>; + #phy-cells = <0>; + cdns,phy-type = <PHY_TYPE_PCIE>; + resets = <&serdes_wiz1 1>; + }; +}; + +&pcie0_rc { + reset-gpios = <&exp1 18 GPIO_ACTIVE_HIGH>; + phys = <&serdes1_pcie_link>; + phy-names = "pcie-phy"; + status = "okay"; +}; + +&usbss0 { + ti,vbus-divider; + status = "okay"; +}; + +&usb0 { + dr_mode = "otg"; + usb-role-switch; +}; + +&usbss1 { + pinctrl-names = "default"; + pinctrl-0 = <&main_usb1_pins_default>; + ti,vbus-divider; + status = "okay"; +}; + +&usb1 { + dr_mode = "host"; + maximum-speed = "super-speed"; + phys = <&serdes0_usb_link>; + phy-names = "cdns3,usb3-phy"; +}; -- 2.40.1
