1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
4 $id: http://devicetree.org/schemas/net/can/fsl,flexcan.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
8 Flexcan CAN controller on Freescale's ARM and PowerPC system-on-a-chip (SOC).
11 - Marc Kleine-Budde <mkl@pengutronix.de>
14 - $ref: can-controller.yaml#
27 - fsl,ls1021ar2-flexcan
28 - fsl,lx2160ar1-flexcan
33 - const: fsl,imx25-flexcan
39 - const: fsl,imx6q-flexcan
42 - fsl,ls1028ar1-flexcan
43 - const: fsl,lx2160ar1-flexcan
61 The oscillator frequency driving the flexcan device, filled in by the
62 boot loader. This property should only be used the used operating system
63 doesn't support the clocks and clock-names property.
66 description: Regulator that powers the CAN transceiver.
69 $ref: /schemas/types.yaml#/definitions/flag
71 This means the registers of FlexCAN controller are big endian. This is
72 optional property.i.e. if this property is not present in device tree
73 node then controller is assumed to be little endian. If this property is
74 present then controller is assumed to be big endian.
78 Register bits of stop mode control.
80 The format should be as follows:
82 gpr is the phandle to general purpose register node.
83 req_gpr is the gpr register offset of CAN stop request.
84 req_bit is the bit offset of CAN stop request.
85 $ref: /schemas/types.yaml#/definitions/phandle-array
88 - description: The 'gpr' is the phandle to general purpose register node.
89 - description: The 'req_gpr' is the gpr register offset of CAN stop request.
91 - description: The 'req_bit' is the bit offset of CAN stop request.
96 Select the clock source to the CAN Protocol Engine (PE). It's SoC
97 implementation dependent. Refer to RM for detailed definition. If this
98 property is not set in device tree node then driver selects clock source 1
100 0: clock source 0 (oscillator clock)
101 1: clock source 1 (peripheral clock)
102 $ref: /schemas/types.yaml#/definitions/uint8
108 $ref: /schemas/types.yaml#/definitions/flag
110 Enable CAN remote wakeup.
114 The scu index of CAN instance.
115 For SoCs with SCU support, need setup stop mode via SCU firmware, so this
116 property can help indicate a resource. It supports up to 3 CAN instances
118 $ref: /schemas/types.yaml#/definitions/uint8
122 termination-gpios: true
123 termination-ohms: true
130 additionalProperties: false
135 compatible = "fsl,p1010-flexcan";
136 reg = <0x1c000 0x1000>;
137 interrupts = <48 0x2>;
138 interrupt-parent = <&mpic>;
139 clock-frequency = <200000000>;
140 fsl,clk-source = /bits/ 8 <0>;
143 #include <dt-bindings/interrupt-controller/irq.h>
146 compatible = "fsl,imx6q-flexcan";
147 reg = <0x02090000 0x4000>;
148 interrupts = <0 110 IRQ_TYPE_LEVEL_HIGH>;
149 clocks = <&clks 1>, <&clks 2>;
150 clock-names = "ipg", "per";
151 fsl,stop-mode = <&gpr 0x34 28>;
152 fsl,scu-index = /bits/ 8 <1>;
155 #include <dt-bindings/interrupt-controller/irq.h>
156 #include <dt-bindings/gpio/gpio.h>
159 compatible = "fsl,imx6q-flexcan";
160 reg = <0x02090000 0x4000>;
161 interrupts = <0 110 IRQ_TYPE_LEVEL_HIGH>;
162 clocks = <&clks 1>, <&clks 2>;
163 clock-names = "ipg", "per";
164 fsl,stop-mode = <&gpr 0x34 28>;
165 termination-gpios = <&gpio1 0 GPIO_ACTIVE_LOW>;
166 termination-ohms = <120>;