xref: /OK3568_Linux_fs/kernel/Documentation/devicetree/bindings/net/can/tcan4x5x.txt (revision 4882a59341e53eb6f0b4789bf948001014eff981)
1*4882a593SmuzhiyunTexas Instruments TCAN4x5x CAN Controller
2*4882a593Smuzhiyun================================================
3*4882a593Smuzhiyun
4*4882a593SmuzhiyunThis file provides device node information for the TCAN4x5x interface contains.
5*4882a593Smuzhiyun
6*4882a593SmuzhiyunRequired properties:
7*4882a593Smuzhiyun	- compatible: "ti,tcan4x5x"
8*4882a593Smuzhiyun	- reg: 0
9*4882a593Smuzhiyun	- #address-cells: 1
10*4882a593Smuzhiyun	- #size-cells: 0
11*4882a593Smuzhiyun	- spi-max-frequency: Maximum frequency of the SPI bus the chip can
12*4882a593Smuzhiyun			     operate at should be less than or equal to 18 MHz.
13*4882a593Smuzhiyun	- interrupt-parent: the phandle to the interrupt controller which provides
14*4882a593Smuzhiyun                    the interrupt.
15*4882a593Smuzhiyun	- interrupts: interrupt specification for data-ready.
16*4882a593Smuzhiyun
17*4882a593SmuzhiyunSee Documentation/devicetree/bindings/net/can/bosch,m_can.yaml for additional
18*4882a593Smuzhiyunrequired property details.
19*4882a593Smuzhiyun
20*4882a593SmuzhiyunOptional properties:
21*4882a593Smuzhiyun	- reset-gpios: Hardwired output GPIO. If not defined then software
22*4882a593Smuzhiyun		       reset.
23*4882a593Smuzhiyun	- device-state-gpios: Input GPIO that indicates if the device is in
24*4882a593Smuzhiyun			      a sleep state or if the device is active.
25*4882a593Smuzhiyun	- device-wake-gpios: Wake up GPIO to wake up the TCAN device.
26*4882a593Smuzhiyun
27*4882a593SmuzhiyunExample:
28*4882a593Smuzhiyuntcan4x5x: tcan4x5x@0 {
29*4882a593Smuzhiyun		compatible = "ti,tcan4x5x";
30*4882a593Smuzhiyun		reg = <0>;
31*4882a593Smuzhiyun		#address-cells = <1>;
32*4882a593Smuzhiyun		#size-cells = <1>;
33*4882a593Smuzhiyun		spi-max-frequency = <10000000>;
34*4882a593Smuzhiyun		bosch,mram-cfg = <0x0 0 0 16 0 0 1 1>;
35*4882a593Smuzhiyun		interrupt-parent = <&gpio1>;
36*4882a593Smuzhiyun		interrupts = <14 IRQ_TYPE_LEVEL_LOW>;
37*4882a593Smuzhiyun		device-state-gpios = <&gpio3 21 GPIO_ACTIVE_HIGH>;
38*4882a593Smuzhiyun		device-wake-gpios = <&gpio1 15 GPIO_ACTIVE_HIGH>;
39*4882a593Smuzhiyun		reset-gpios = <&gpio1 27 GPIO_ACTIVE_HIGH>;
40*4882a593Smuzhiyun};
41