| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame^] | 1 | Texas Instruments TCAN4x5x CAN Controller |
| 2 | ================================================ |
| 3 | |
| 4 | This file provides device node information for the TCAN4x5x interface contains. |
| 5 | |
| 6 | Required properties: |
| 7 | - compatible: |
| 8 | "ti,tcan4552", "ti,tcan4x5x" |
| 9 | "ti,tcan4553", "ti,tcan4x5x" or |
| 10 | "ti,tcan4x5x" |
| 11 | - reg: 0 |
| 12 | - #address-cells: 1 |
| 13 | - #size-cells: 0 |
| 14 | - spi-max-frequency: Maximum frequency of the SPI bus the chip can |
| 15 | operate at should be less than or equal to 18 MHz. |
| 16 | - interrupt-parent: the phandle to the interrupt controller which provides |
| 17 | the interrupt. |
| 18 | - interrupts: interrupt specification for data-ready. |
| 19 | |
| 20 | See Documentation/devicetree/bindings/net/can/bosch,m_can.yaml for additional |
| 21 | required property details. |
| 22 | |
| 23 | Optional properties: |
| 24 | - reset-gpios: Hardwired output GPIO. If not defined then software |
| 25 | reset. |
| 26 | - device-state-gpios: Input GPIO that indicates if the device is in |
| 27 | a sleep state or if the device is active. Not |
| 28 | available with tcan4552/4553. |
| 29 | - device-wake-gpios: Wake up GPIO to wake up the TCAN device. Not |
| 30 | available with tcan4552/4553. |
| 31 | |
| 32 | Example: |
| 33 | tcan4x5x: tcan4x5x@0 { |
| 34 | compatible = "ti,tcan4x5x"; |
| 35 | reg = <0>; |
| 36 | #address-cells = <1>; |
| 37 | #size-cells = <1>; |
| 38 | spi-max-frequency = <10000000>; |
| 39 | bosch,mram-cfg = <0x0 0 0 16 0 0 1 1>; |
| 40 | interrupt-parent = <&gpio1>; |
| 41 | interrupts = <14 IRQ_TYPE_LEVEL_LOW>; |
| 42 | device-state-gpios = <&gpio3 21 GPIO_ACTIVE_HIGH>; |
| 43 | device-wake-gpios = <&gpio1 15 GPIO_ACTIVE_HIGH>; |
| 44 | reset-gpios = <&gpio1 27 GPIO_ACTIVE_HIGH>; |
| 45 | }; |