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Pull devicetree updates from Rob Herring: - Add Krzysztof Kozlowski as co-maintainer for DT bindings providing much needed help. - DT schema validation now takes DTB files as input rather than intermediate YAML files. This decouples the validation from the source level syntax information. There's a bunch of schema fixes as a result of switching to DTB based validation which exposed some errors and incomplete schemas and examples. - Kbuild improvements to explicitly warn users running 'make dt_binding_check' on missing yamllint - Expand DT_SCHEMA_FILES kbuild variable to take just a partial filename or path instead of the full path to 1 file. - Convert various bindings to schema format: mscc,vsc7514-switch, multiple GNSS bindings, ahci-platform, i2c-at91, multiple UFS bindings, cortina,gemini-sata-bridge, cortina,gemini-ethernet, Atmel SHA, Atmel TDES, Atmel AES, armv7m-systick, Samsung Exynos display subsystem, nuvoton,npcm7xx-timer, samsung,s3c2410-i2c, zynqmp_dma, msm/mdp4, rda,8810pl-uart - New schemas for u-boot environment variable partition, TI clksel - New compatible strings for Renesas RZ/V2L SoC - Vendor prefixes for Xen, HPE, deprecated Synopsys, deprecated HiSilicon - Add/fix schemas for QEMU Arm 'virt' machine - Drop unused of_alias_get_alias_list() function - Add a script to check DT unittest EXPECT message output. Pass messages also now print by default at PR_INFO level to help test automation. * tag 'devicetree-for-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (96 commits) dt-bindings: kbuild: Make DT_SCHEMA_LINT a recursive variable dt-bindings: nvmem: add U-Boot environment variables binding dt-bindings: ufs: qcom: Add SM6350 compatible string dt-bindings: dmaengine: sifive,fu540-c000: include generic schema dt-bindings: gpio: pca95xx: drop useless consumer example Revert "of: base: Introduce of_alias_get_alias_list() to check alias IDs" dt-bindings: virtio,mmio: Allow setting devices 'dma-coherent' dt-bindings: gnss: Add two more chips dt-bindings: gnss: Rewrite sirfstar binding in YAML dt-bindings: gnss: Modify u-blox to use common bindings dt-bindings: gnss: Rewrite common bindings in YAML dt-bindings: ata: ahci-platform: Add rk3568-dwc-ahci compatible dt-bindings: ata: ahci-platform: Add power-domains property dt-bindings: ata: ahci-platform: Convert DT bindings to yaml dt-bindings: kbuild: Use DTB files for validation dt-bindings: kbuild: Pass DT_SCHEMA_FILES to dt-validate dt-bindings: Add QEMU virt machine compatible dt-bindings: arm: Convert QEMU fw-cfg to DT schema dt-bindings: i2c: at91: Add SAMA7G5 compatible strings list dt-bindings: i2c: convert i2c-at91 to json-schema ...
153 lines
4.0 KiB
YAML
153 lines
4.0 KiB
YAML
# SPDX-License-Identifier: GPL-2.0
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/net/can/bosch,m_can.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Bosch MCAN controller Bindings
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description: Bosch MCAN controller for CAN bus
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maintainers:
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- Chandrasekar Ramakrishnan <rcsekar@samsung.com>
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allOf:
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- $ref: can-controller.yaml#
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properties:
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compatible:
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const: bosch,m_can
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reg:
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items:
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- description: M_CAN registers map
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- description: message RAM
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reg-names:
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items:
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- const: m_can
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- const: message_ram
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interrupts:
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items:
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- description: interrupt line0
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- description: interrupt line1
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minItems: 1
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interrupt-names:
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items:
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- const: int0
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- const: int1
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minItems: 1
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clocks:
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items:
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- description: peripheral clock
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- description: bus clock
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clock-names:
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items:
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- const: hclk
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- const: cclk
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bosch,mram-cfg:
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description: |
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Message RAM configuration data.
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Multiple M_CAN instances can share the same Message RAM
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and each element(e.g Rx FIFO or Tx Buffer and etc) number
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in Message RAM is also configurable, so this property is
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telling driver how the shared or private Message RAM are
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used by this M_CAN controller.
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The format should be as follows:
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<offset sidf_elems xidf_elems rxf0_elems rxf1_elems rxb_elems txe_elems txb_elems>
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The 'offset' is an address offset of the Message RAM where
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the following elements start from. This is usually set to
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0x0 if you're using a private Message RAM. The remain cells
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are used to specify how many elements are used for each FIFO/Buffer.
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M_CAN includes the following elements according to user manual:
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11-bit Filter 0-128 elements / 0-128 words
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29-bit Filter 0-64 elements / 0-128 words
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Rx FIFO 0 0-64 elements / 0-1152 words
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Rx FIFO 1 0-64 elements / 0-1152 words
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Rx Buffers 0-64 elements / 0-1152 words
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Tx Event FIFO 0-32 elements / 0-64 words
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Tx Buffers 0-32 elements / 0-576 words
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Please refer to 2.4.1 Message RAM Configuration in Bosch
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M_CAN user manual for details.
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$ref: /schemas/types.yaml#/definitions/int32-array
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items:
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- description: The 'offset' is an address offset of the Message RAM where
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the following elements start from. This is usually set to 0x0 if
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you're using a private Message RAM.
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default: 0
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- description: 11-bit Filter 0-128 elements / 0-128 words
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minimum: 0
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maximum: 128
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- description: 29-bit Filter 0-64 elements / 0-128 words
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minimum: 0
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maximum: 64
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- description: Rx FIFO 0 0-64 elements / 0-1152 words
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minimum: 0
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maximum: 64
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- description: Rx FIFO 1 0-64 elements / 0-1152 words
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minimum: 0
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maximum: 64
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- description: Rx Buffers 0-64 elements / 0-1152 words
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minimum: 0
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maximum: 64
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- description: Tx Event FIFO 0-32 elements / 0-64 words
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minimum: 0
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maximum: 32
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- description: Tx Buffers 0-32 elements / 0-576 words
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minimum: 0
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maximum: 32
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minItems: 1
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power-domains:
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description:
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Power domain provider node and an args specifier containing
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the can device id value.
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maxItems: 1
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can-transceiver:
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$ref: can-transceiver.yaml#
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phys:
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maxItems: 1
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required:
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- compatible
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- reg
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- reg-names
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- interrupts
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- interrupt-names
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- clocks
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- clock-names
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- bosch,mram-cfg
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additionalProperties: false
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examples:
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- |
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#include <dt-bindings/clock/imx6sx-clock.h>
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can@20e8000 {
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compatible = "bosch,m_can";
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reg = <0x020e8000 0x4000>, <0x02298000 0x4000>;
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reg-names = "m_can", "message_ram";
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interrupts = <0 114 0x04>, <0 114 0x04>;
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interrupt-names = "int0", "int1";
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clocks = <&clks IMX6SX_CLK_CANFD>,
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<&clks IMX6SX_CLK_CANFD>;
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clock-names = "hclk", "cclk";
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bosch,mram-cfg = <0x0 0 0 32 0 0 0 1>;
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can-transceiver {
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max-bitrate = <5000000>;
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};
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};
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...
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