Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
dt-bindings: mailbox: Convert apm,xgene-slimpro-mbox to DT schema
Convert APM X-Gene slimpro-mbox binding to DT schema format. It's a
straight-forward conversion.
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
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-35
+62
Documentation/devicetree/bindings/mailbox/apm,xgene-slimpro-mbox.yaml
+62
Documentation/devicetree/bindings/mailbox/apm,xgene-slimpro-mbox.yaml
···
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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/apm,xgene-slimpro-mbox.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: APM X-Gene SLIMpro mailbox
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maintainers:
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- Khuong Dinh <khuong@os.amperecomputing.com>
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description:
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The APM X-Gene SLIMpro mailbox is used to communicate messages between
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the ARM64 processors and the Cortex M3 (dubbed SLIMpro). It uses a simple
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interrupt based door bell mechanism and can exchange simple messages using the
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internal registers.
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properties:
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compatible:
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const: apm,xgene-slimpro-mbox
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reg:
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maxItems: 1
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interrupts:
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items:
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- description: mailbox channel 0 doorbell
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- description: mailbox channel 1 doorbell
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- description: mailbox channel 2 doorbell
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- description: mailbox channel 3 doorbell
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- description: mailbox channel 4 doorbell
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- description: mailbox channel 5 doorbell
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- description: mailbox channel 6 doorbell
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- description: mailbox channel 7 doorbell
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'#mbox-cells':
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description: Number of mailbox channel.
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const: 1
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required:
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- compatible
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- reg
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- interrupts
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- '#mbox-cells'
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additionalProperties: false
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examples:
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- |
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mailbox@10540000 {
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compatible = "apm,xgene-slimpro-mbox";
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reg = <0x10540000 0xa000>;
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#mbox-cells = <1>;
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interrupts = <0x0 0x0 0x4>,
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<0x0 0x1 0x4>,
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<0x0 0x2 0x4>,
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<0x0 0x3 0x4>,
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<0x0 0x4 0x4>,
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<0x0 0x5 0x4>,
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<0x0 0x6 0x4>,
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<0x0 0x7 0x4>;
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};
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Documentation/devicetree/bindings/mailbox/xgene-slimpro-mailbox.txt
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Documentation/devicetree/bindings/mailbox/xgene-slimpro-mailbox.txt
···
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The APM X-Gene SLIMpro mailbox is used to communicate messages between
2
-
the ARM64 processors and the Cortex M3 (dubbed SLIMpro). It uses a simple
3
-
interrupt based door bell mechanism and can exchange simple messages using the
4
-
internal registers.
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-
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There are total of 8 interrupts in this mailbox. Each used for an individual
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door bell (or mailbox channel).
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Required properties:
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- compatible: Should be as "apm,xgene-slimpro-mbox".
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-
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- reg: Contains the mailbox register address range.
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-
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- interrupts: 8 interrupts must be from 0 to 7, interrupt 0 define the
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the interrupt for mailbox channel 0 and interrupt 1 for
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mailbox channel 1 and so likewise for the reminder.
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- #mbox-cells: only one to specify the mailbox channel number.
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-
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Example:
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Mailbox Node:
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mailbox: mailbox@10540000 {
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compatible = "apm,xgene-slimpro-mbox";
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reg = <0x0 0x10540000 0x0 0xa000>;
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#mbox-cells = <1>;
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interrupts = <0x0 0x0 0x4>,
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<0x0 0x1 0x4>,
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<0x0 0x2 0x4>,
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<0x0 0x3 0x4>,
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<0x0 0x4 0x4>,
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<0x0 0x5 0x4>,
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<0x0 0x6 0x4>,
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<0x0 0x7 0x4>,
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};