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dt-bindings: can: flexcan: convert fsl,*flexcan bindings to yaml

Browse Source 
In order to automate the verification of DT nodes convert
fsl-flexcan.txt to fsl,flexcan.yaml

Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20201022075218.11880-3-o.rempel@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
This commit is contained in:
Oleksij Rempel 2020-10-22 09:52:18 +02:00 committed by Marc Kleine-Budde
parent 1f9234401c
commit e5ab9aa7e4
2 changed files with 135 additions and 57 deletions
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135
Documentation/devicetree/bindings/net/can/fsl,flexcan.yaml Normal file
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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/fsl,flexcan.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title:
Flexcan CAN controller on Freescale's ARM and PowerPC system-on-a-chip (SOC).
maintainers:
- Marc Kleine-Budde <mkl@pengutronix.de>
allOf:
- $ref: can-controller.yaml#
properties:
compatible:
oneOf:
- enum:
- fsl,imx8qm-flexcan
- fsl,imx8mp-flexcan
- fsl,imx6q-flexcan
- fsl,imx53-flexcan
- fsl,imx35-flexcan
- fsl,imx28-flexcan
- fsl,imx25-flexcan
- fsl,p1010-flexcan
- fsl,vf610-flexcan
- fsl,ls1021ar2-flexcan
- fsl,lx2160ar1-flexcan
- items:
- enum:
- fsl,imx7d-flexcan
- fsl,imx6ul-flexcan
- fsl,imx6sx-flexcan
- const: fsl,imx6q-flexcan
- items:
- enum:
- fsl,ls1028ar1-flexcan
- const: fsl,lx2160ar1-flexcan
reg:
maxItems: 1
interrupts:
maxItems: 1
clocks:
maxItems: 2
clock-names:
items:
- const: ipg
- const: per
clock-frequency:
description: |
The oscillator frequency driving the flexcan device, filled in by the
boot loader. This property should only be used the used operating system
doesn't support the clocks and clock-names property.
xceiver-supply:
description: Regulator that powers the CAN transceiver.
big-endian:
$ref: /schemas/types.yaml#/definitions/flag
description: |
This means the registers of FlexCAN controller are big endian. This is
optional property.i.e. if this property is not present in device tree
node then controller is assumed to be little endian. If this property is
present then controller is assumed to be big endian.
fsl,stop-mode:
description: |
Register bits of stop mode control.
The format should be as follows:
<gpr req_gpr req_bit>
gpr is the phandle to general purpose register node.
req_gpr is the gpr register offset of CAN stop request.
req_bit is the bit offset of CAN stop request.
$ref: /schemas/types.yaml#/definitions/phandle-array
items:
- description: The 'gpr' is the phandle to general purpose register node.
- description: The 'req_gpr' is the gpr register offset of CAN stop request.
maximum: 0xff
- description: The 'req_bit' is the bit offset of CAN stop request.
maximum: 0x1f
fsl,clk-source:
description: |
Select the clock source to the CAN Protocol Engine (PE). It's SoC
implementation dependent. Refer to RM for detailed definition. If this
property is not set in device tree node then driver selects clock source 1
by default.
0: clock source 0 (oscillator clock)
1: clock source 1 (peripheral clock)
$ref: /schemas/types.yaml#/definitions/uint32
default: 1
minimum: 0
maximum: 1
wakeup-source:
$ref: /schemas/types.yaml#/definitions/flag
description:
Enable CAN remote wakeup.
required:
- compatible
- reg
- interrupts
additionalProperties: false
examples:
- |
can@1c000 {
compatible = "fsl,p1010-flexcan";
reg = <0x1c000 0x1000>;
interrupts = <48 0x2>;
interrupt-parent = <&mpic>;
clock-frequency = <200000000>;
fsl,clk-source = <0>;
};
- |
#include <dt-bindings/interrupt-controller/irq.h>
can@2090000 {
compatible = "fsl,imx6q-flexcan";
reg = <0x02090000 0x4000>;
interrupts = <0 110 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&clks 1>, <&clks 2>;
clock-names = "ipg", "per";
fsl,stop-mode = <&gpr 0x34 28>;
};

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Documentation/devicetree/bindings/net/can/fsl-flexcan.txt
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Flexcan CAN controller on Freescale's ARM and PowerPC system-on-a-chip (SOC).
Required properties:
- compatible : Should be "fsl,<processor>-flexcan"
where <processor> is imx8qm, imx6q, imx28, imx53, imx35, imx25, p1010,
vf610, ls1021ar2, lx2160ar1, ls1028ar1.
The ls1028ar1 must be followed by lx2160ar1, e.g.
- "fsl,ls1028ar1-flexcan", "fsl,lx2160ar1-flexcan"
An implementation should also claim any of the following compatibles
that it is fully backwards compatible with:
- fsl,p1010-flexcan
- reg : Offset and length of the register set for this device
- interrupts : Interrupt tuple for this device
Optional properties:
- clock-frequency : The oscillator frequency driving the flexcan device
- xceiver-supply: Regulator that powers the CAN transceiver
- big-endian: This means the registers of FlexCAN controller are big endian.
This is optional property.i.e. if this property is not present in
device tree node then controller is assumed to be little endian.
if this property is present then controller is assumed to be big
endian.
- fsl,stop-mode: register bits of stop mode control, the format is
<&gpr req_gpr req_bit>.
gpr is the phandle to general purpose register node.
req_gpr is the gpr register offset of CAN stop request.
req_bit is the bit offset of CAN stop request.
- fsl,clk-source: Select the clock source to the CAN Protocol Engine (PE).
It's SoC Implementation dependent. Refer to RM for detailed
definition. If this property is not set in device tree node
then driver selects clock source 1 by default.
0: clock source 0 (oscillator clock)
1: clock source 1 (peripheral clock)
- wakeup-source: enable CAN remote wakeup
Example:
can@1c000 {
compatible = "fsl,p1010-flexcan";
reg = <0x1c000 0x1000>;
interrupts = <48 0x2>;
interrupt-parent = <&mpic>;
clock-frequency = <200000000>; // filled in by bootloader
fsl,clk-source = <0>; // select clock source 0 for PE
};