| Message ID | 20230622185100.12197-1-b-kapoor@ti.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [v4] arm64: dts: ti: k3-j721s2: Add support for CAN instances 3 and 5 in main domain | expand |
Hi Bhavya On 6/23/2023 12:21 AM, Bhavya Kapoor wrote: > CAN instances 3 and 5 in the main domain are brought on the common > processor board through header J27 and J28. The CAN High and Low lines > from the SoC are routed through a mux on the SoM. The select lines need > to be set for the CAN signals to get connected to the transceivers on > the common processor board. Threfore, add respective mux, transceiver > dt nodes to add support for these CAN instances. > [...] > > + mux0: mux-controller@0 { > + compatible = "gpio-mux"; > + #mux-state-cells = <1>; > + mux-gpios = <&exp_som 1 GPIO_ACTIVE_HIGH>; > + }; > + You will get more warning with @0 and @1 DTC_CHK arch/arm64/boot/dts/ti//k3-j721s2-common-proc-board.dtb /arch/arm64/boot/dts/ti/k3-j721s2-common-proc-board.dtb: /: mux-controller@0: 'anyOf' conditional failed, one must be fixed: 'reg' is a required property 'ranges' is a required property From schema: /home/udit/.local/lib/python3.10/site-packages/dtschema/schemas/root-node.yaml /arch/arm64/boot/dts/ti/k3-j721s2-common-proc-board.dtb: /: mux-controller@1: 'anyOf' conditional failed, one must be fixed: 'reg' is a required property 'ranges' is a required property > + mux1: mux-controller@1 { > + compatible = "gpio-mux"; > + #mux-state-cells = <1>; > + mux-gpios = <&exp_som 2 GPIO_ACTIVE_HIGH>; > + }; > + > transceiver0: can-phy0 { > /* standby pin has been grounded by default */ > compatible = "ti,tcan1042";
diff --git a/arch/arm64/boot/dts/ti/k3-j721s2-common-proc-board.dts b/arch/arm64/boot/dts/ti/k3-j721s2-common-proc-board.dts index b4b9edfe2d12..07016c87f4da 100644 --- a/arch/arm64/boot/dts/ti/k3-j721s2-common-proc-board.dts +++ b/arch/arm64/boot/dts/ti/k3-j721s2-common-proc-board.dts @@ -27,6 +27,8 @@ aliases { can0 = &main_mcan16; can1 = &mcu_mcan0; can2 = &mcu_mcan1; + can3 = &main_mcan3; + can4 = &main_mcan5; }; evm_12v0: fixedregulator-evm12v0 { @@ -107,6 +109,22 @@ transceiver2: can-phy2 { standby-gpios = <&wkup_gpio0 2 GPIO_ACTIVE_HIGH>; }; + transceiver3: can-phy3 { + compatible = "ti,tcan1043"; + #phy-cells = <0>; + max-bitrate = <5000000>; + standby-gpios = <&exp2 7 GPIO_ACTIVE_LOW>; + enable-gpios = <&exp2 6 GPIO_ACTIVE_HIGH>; + mux-states = <&mux0 1>; + }; + + transceiver4: can-phy4 { + compatible = "ti,tcan1042"; + #phy-cells = <0>; + max-bitrate = <5000000>; + standby-gpios = <&exp_som 7 GPIO_ACTIVE_HIGH>; + mux-states = <&mux1 1>; + }; }; &main_pmx0 { @@ -144,6 +162,20 @@ vdd_sd_dv_pins_default: vdd-sd-dv-pins-default { J721S2_IOPAD(0x020, PIN_INPUT, 7) /* (AA23) MCAN15_RX.GPIO0_8 */ >; }; + + main_mcan3_pins_default: main-mcan3-pins-default { + pinctrl-single,pins = < + J721S2_IOPAD(0x080, PIN_INPUT, 0) /* (U26) MCASP0_AXR4.MCAN3_RX */ + J721S2_IOPAD(0x07c, PIN_OUTPUT, 0) /* (T27) MCASP0_AXR3.MCAN3_TX */ + >; + }; + + main_mcan5_pins_default: main-mcan5-pins-default { + pinctrl-single,pins = < + J721S2_IOPAD(0x03c, PIN_INPUT, 0) /* (U27) MCASP0_AFSX.MCAN5_RX */ + J721S2_IOPAD(0x038, PIN_OUTPUT, 0) /* (AB28) MCASP0_ACLKX.MCAN5_TX */ + >; + }; }; &wkup_pmx0 { @@ -353,3 +385,17 @@ adc { ti,adc-channels = <0 1 2 3 4 5 6 7>; }; }; + +&main_mcan3 { + status = "okay"; + pinctrl-names = "default"; + pinctrl-0 = <&main_mcan3_pins_default>; + phys = <&transceiver3>; +}; + +&main_mcan5 { + status = "okay"; + pinctrl-names = "default"; + pinctrl-0 = <&main_mcan5_pins_default>; + phys = <&transceiver4>; +}; diff --git a/arch/arm64/boot/dts/ti/k3-j721s2-som-p0.dtsi b/arch/arm64/boot/dts/ti/k3-j721s2-som-p0.dtsi index 6930efff8a5a..84e50e891ee2 100644 --- a/arch/arm64/boot/dts/ti/k3-j721s2-som-p0.dtsi +++ b/arch/arm64/boot/dts/ti/k3-j721s2-som-p0.dtsi @@ -31,6 +31,18 @@ secure_ddr: optee@9e800000 { }; }; + mux0: mux-controller@0 { + compatible = "gpio-mux"; + #mux-state-cells = <1>; + mux-gpios = <&exp_som 1 GPIO_ACTIVE_HIGH>; + }; + + mux1: mux-controller@1 { + compatible = "gpio-mux"; + #mux-state-cells = <1>; + mux-gpios = <&exp_som 2 GPIO_ACTIVE_HIGH>; + }; + transceiver0: can-phy0 { /* standby pin has been grounded by default */ compatible = "ti,tcan1042";