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+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/can/nxp,sja1000.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Memory mapped SJA1000 CAN controller from NXP (formerly Philips)
+
+maintainers:
+ - Wolfgang Grandegger <wg@grandegger.com>
+
+properties:
+ compatible:
+ oneOf:
+ - enum:
+ - nxp,sja1000
+ - technologic,sja1000
+ - items:
+ - enum:
+ - renesas,r9a06g032-sja1000 # RZ/N1D
+ - renesas,r9a06g033-sja1000 # RZ/N1S
+ - const: renesas,rzn1-sja1000 # RZ/N1
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ power-domains:
+ maxItems: 1
+
+ reg-io-width:
+ description: I/O register width (in bytes) implemented by this device
+ default: 1
+ enum: [ 1, 2, 4 ]
+
+ nxp,external-clock-frequency:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ default: 16000000
+ description: |
+ Frequency of the external oscillator clock in Hz.
+ The internal clock frequency used by the SJA1000 is half of that value.
+
+ nxp,tx-output-mode:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum: [ 0, 1, 2, 3 ]
+ default: 1
+ description: |
+ operation mode of the TX output control logic. Valid values are:
+ <0> : bi-phase output mode
+ <1> : normal output mode (default)
+ <2> : test output mode
+ <3> : clock output mode
+
+ nxp,tx-output-config:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ default: 0x02
+ description: |
+ TX output pin configuration. Valid values are any one of the below
+ or combination of TX0 and TX1:
+ <0x01> : TX0 invert
+ <0x02> : TX0 pull-down (default)
+ <0x04> : TX0 pull-up
+ <0x06> : TX0 push-pull
+ <0x08> : TX1 invert
+ <0x10> : TX1 pull-down
+ <0x20> : TX1 pull-up
+ <0x30> : TX1 push-pull
+
+ nxp,clock-out-frequency:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: |
+ clock frequency in Hz on the CLKOUT pin.
+ If not specified or if the specified value is 0, the CLKOUT pin
+ will be disabled.
+
+ nxp,no-comparator-bypass:
+ type: boolean
+ description: Allows to disable the CAN input comparator.
+
+required:
+ - compatible
+ - reg
+ - interrupts
+
+allOf:
+ - $ref: can-controller.yaml#
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - technologic,sja1000
+ - renesas,rzn1-sja1000
+ then:
+ required:
+ - reg-io-width
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: renesas,rzn1-sja1000
+ then:
+ required:
+ - clocks
+ - power-domains
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ can@1a000 {
+ compatible = "technologic,sja1000";
+ reg = <0x1a000 0x100>;
+ interrupts = <1>;
+ reg-io-width = <2>;
+ nxp,tx-output-config = <0x06>;
+ nxp,external-clock-frequency = <24000000>;
+ };
+
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/clock/r9a06g032-sysctrl.h>
+
+ can@52104000 {
+ compatible = "renesas,r9a06g032-sja1000", "renesas,rzn1-sja1000";
+ reg = <0x52104000 0x800>;
+ reg-io-width = <4>;
+ interrupts = <GIC_SPI 95 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&sysctrl R9A06G032_HCLK_CAN0>;
+ power-domains = <&sysctrl>;
+ };