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1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)2%YAML 1.23---4$id: http://devicetree.org/schemas/net/can/st,stm32-bxcan.yaml#5$schema: http://devicetree.org/meta-schemas/core.yaml#6 7title: STMicroelectronics bxCAN controller8 9description: STMicroelectronics BxCAN controller for CAN bus10 11maintainers:12 - Dario Binacchi <dario.binacchi@amarulasolutions.com>13 14allOf:15 - $ref: can-controller.yaml#16 17properties:18 compatible:19 enum:20 - st,stm32f4-bxcan21 22 st,can-primary:23 description:24 Primary mode of the bxCAN peripheral is only relevant if the chip has25 two CAN peripherals in dual CAN configuration. In that case they share26 some of the required logic.27 Not to be used if the peripheral is in single CAN configuration.28 To avoid misunderstandings, it should be noted that ST documentation29 uses the terms master instead of primary.30 type: boolean31 32 st,can-secondary:33 description:34 Secondary mode of the bxCAN peripheral is only relevant if the chip35 has two CAN peripherals in dual CAN configuration. In that case they36 share some of the required logic.37 Not to be used if the peripheral is in single CAN configuration.38 To avoid misunderstandings, it should be noted that ST documentation39 uses the terms slave instead of secondary.40 type: boolean41 42 reg:43 maxItems: 144 45 interrupts:46 items:47 - description: transmit interrupt48 - description: FIFO 0 receive interrupt49 - description: FIFO 1 receive interrupt50 - description: status change error interrupt51 52 interrupt-names:53 items:54 - const: tx55 - const: rx056 - const: rx157 - const: sce58 59 resets:60 maxItems: 161 62 clocks:63 maxItems: 164 65 st,gcan:66 $ref: /schemas/types.yaml#/definitions/phandle-array67 description:68 The phandle to the gcan node which allows to access the 512-bytes69 SRAM memory shared by the two bxCAN cells (CAN1 primary and CAN270 secondary) in dual CAN peripheral configuration.71 72required:73 - compatible74 - reg75 - interrupts76 - resets77 - clocks78 - st,gcan79 80additionalProperties: false81 82examples:83 - |84 #include <dt-bindings/clock/stm32fx-clock.h>85 #include <dt-bindings/mfd/stm32f4-rcc.h>86 87 can1: can@40006400 {88 compatible = "st,stm32f4-bxcan";89 reg = <0x40006400 0x200>;90 interrupts = <19>, <20>, <21>, <22>;91 interrupt-names = "tx", "rx0", "rx1", "sce";92 resets = <&rcc STM32F4_APB1_RESET(CAN1)>;93 clocks = <&rcc 0 STM32F4_APB1_CLOCK(CAN1)>;94 st,can-primary;95 st,gcan = <&gcan>;96 };97