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| author |  Aswath Govindraju <a-govindraju@ti.com>
| 2021-11-22 19:11:58 +0530 |
|---|---|---|
| committer |  Vignesh Raghavendra <vigneshr@ti.com>
| 2021-12-07 19:33:09 +0530 |
| commit | 2f474da98caf9a75d7777c5465d281240c706bc6 (patch) | |
| tree | 0654262dafca6ea6a27127f774d2d9eec0bc6954 /arch/arm64/boot/dts/ti/k3-am642-evm.dts | |
| parent | arm64: dts: ti: k3-am64-main: Add support for MCAN (diff) | |
| download | linux-2f474da98caf9a75d7777c5465d281240c706bc6.tar.gz linux-2f474da98caf9a75d7777c5465d281240c706bc6.tar.bz2 linux-2f474da98caf9a75d7777c5465d281240c706bc6.zip | |
arm64: dts: ti: k3-am642-evm/sk: Add support for main domain mcan nodes in EVM and disable them on SK
AM642 EVM has two CAN connecters brought out from the two MCAN instances in
the main domain through transceivers. Add device tree nodes for
transceivers and set the required properties in the mcan device tree nodes,
in EVM device tree file.
On AM642 SK there are no connectors brought out for CAN. Therefore, disable
the mcan device tree nodes in the SK device tree file.
Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Reviewed-by: Apurva Nandan <a-nandan@ti.com>
Link: https://lore.kernel.org/r/20211122134159.29936-7-a-govindraju@ti.com
Diffstat (limited to 'arch/arm64/boot/dts/ti/k3-am642-evm.dts')
| -rw-r--r-- | arch/arm64/boot/dts/ti/k3-am642-evm.dts | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/ti/k3-am642-evm.dts b/arch/arm64/boot/dts/ti/k3-am642-evm.dts index 6726c4c7c28c..e94ae178b1ae 100644 --- a/arch/arm64/boot/dts/ti/k3-am642-evm.dts +++ b/arch/arm64/boot/dts/ti/k3-am642-evm.dts @@ -184,6 +184,20 @@ }; }; }; + + transceiver1: can-phy0 { + compatible = "ti,tcan1042"; + #phy-cells = <0>; + max-bitrate = <5000000>; + standby-gpios = <&exp1 8 GPIO_ACTIVE_HIGH>; + }; + + transceiver2: can-phy1 { + compatible = "ti,tcan1042"; + #phy-cells = <0>; + max-bitrate = <5000000>; + standby-gpios = <&exp1 9 GPIO_ACTIVE_HIGH>; + }; }; &main_pmx0 { @@ -294,6 +308,20 @@ AM64X_IOPAD(0x0270, PIN_INPUT, 0) /* (D18) ECAP0_IN_APWM_OUT */ >; }; + + main_mcan0_pins_default: main-mcan0-pins-default { + pinctrl-single,pins = < + AM64X_IOPAD(0x0254, PIN_INPUT, 0) /* (B17) MCAN0_RX */ + AM64X_IOPAD(0x0250, PIN_OUTPUT, 0) /* (A17) MCAN0_TX */ + >; + }; + + main_mcan1_pins_default: main-mcan1-pins-default { + pinctrl-single,pins = < + AM64X_IOPAD(0x025c, PIN_INPUT, 0) /* (D17) MCAN1_RX */ + AM64X_IOPAD(0x0258, PIN_OUTPUT, 0) /* (C17) MCAN1_TX */ + >; + }; }; &main_uart0 { @@ -638,3 +666,15 @@ &icssg1_mdio { status = "disabled"; }; + +&main_mcan0 { + pinctrl-names = "default"; + pinctrl-0 = <&main_mcan0_pins_default>; + phys = <&transceiver1>; +}; + +&main_mcan1 { + pinctrl-names = "default"; + pinctrl-0 = <&main_mcan1_pins_default>; + phys = <&transceiver2>; +}; |