131 lines
3.0 KiB
YAML
131 lines
3.0 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
|
|
# Copyright (c) 2020 MediaTek Inc.
|
|
%YAML 1.2
|
|
---
|
|
$id: http://devicetree.org/schemas/memory-controllers/mediatek,smi-larb.yaml#
|
|
$schema: http://devicetree.org/meta-schemas/core.yaml#
|
|
|
|
title: SMI (Smart Multimedia Interface) Local Arbiter
|
|
|
|
maintainers:
|
|
- Yong Wu <yong.wu@mediatek.com>
|
|
|
|
description: |
|
|
The hardware block diagram please check bindings/iommu/mediatek,iommu.yaml
|
|
|
|
properties:
|
|
compatible:
|
|
oneOf:
|
|
- enum:
|
|
- mediatek,mt2701-smi-larb
|
|
- mediatek,mt2712-smi-larb
|
|
- mediatek,mt6779-smi-larb
|
|
- mediatek,mt8167-smi-larb
|
|
- mediatek,mt8173-smi-larb
|
|
- mediatek,mt8183-smi-larb
|
|
- mediatek,mt8192-smi-larb
|
|
|
|
- description: for mt7623
|
|
items:
|
|
- const: mediatek,mt7623-smi-larb
|
|
- const: mediatek,mt2701-smi-larb
|
|
|
|
reg:
|
|
maxItems: 1
|
|
|
|
clocks:
|
|
description: |
|
|
apb and smi are mandatory. gals(global async local sync) is optional.
|
|
minItems: 2
|
|
items:
|
|
- description: apb is Advanced Peripheral Bus clock, It's the clock for
|
|
setting the register.
|
|
- description: smi is the clock for transfer data and command.
|
|
- description: the clock for gals.
|
|
|
|
clock-names:
|
|
minItems: 2
|
|
maxItems: 3
|
|
|
|
power-domains:
|
|
maxItems: 1
|
|
|
|
mediatek,smi:
|
|
$ref: /schemas/types.yaml#/definitions/phandle-array
|
|
description: a phandle to the smi_common node.
|
|
|
|
mediatek,larb-id:
|
|
$ref: /schemas/types.yaml#/definitions/uint32
|
|
minimum: 0
|
|
maximum: 31
|
|
description: the hardware id of this larb. It's only required when this
|
|
hardward id is not consecutive from its M4U point of view.
|
|
|
|
required:
|
|
- compatible
|
|
- reg
|
|
- clocks
|
|
- clock-names
|
|
- power-domains
|
|
|
|
allOf:
|
|
- if: # HW has gals
|
|
properties:
|
|
compatible:
|
|
enum:
|
|
- mediatek,mt8183-smi-larb
|
|
|
|
then:
|
|
properties:
|
|
clock:
|
|
items:
|
|
minItems: 3
|
|
maxItems: 3
|
|
clock-names:
|
|
items:
|
|
- const: apb
|
|
- const: smi
|
|
- const: gals
|
|
|
|
else:
|
|
properties:
|
|
clock:
|
|
items:
|
|
minItems: 2
|
|
maxItems: 2
|
|
clock-names:
|
|
items:
|
|
- const: apb
|
|
- const: smi
|
|
|
|
- if:
|
|
properties:
|
|
compatible:
|
|
contains:
|
|
enum:
|
|
- mediatek,mt2701-smi-larb
|
|
- mediatek,mt2712-smi-larb
|
|
- mediatek,mt6779-smi-larb
|
|
- mediatek,mt8192-smi-larb
|
|
|
|
then:
|
|
required:
|
|
- mediatek,larb-id
|
|
|
|
additionalProperties: false
|
|
|
|
examples:
|
|
- |+
|
|
#include <dt-bindings/clock/mt8173-clk.h>
|
|
#include <dt-bindings/power/mt8173-power.h>
|
|
|
|
larb1: larb@16010000 {
|
|
compatible = "mediatek,mt8173-smi-larb";
|
|
reg = <0x16010000 0x1000>;
|
|
mediatek,smi = <&smi_common>;
|
|
power-domains = <&scpsys MT8173_POWER_DOMAIN_VDEC>;
|
|
clocks = <&vdecsys CLK_VDEC_CKEN>,
|
|
<&vdecsys CLK_VDEC_LARB_CKEN>;
|
|
clock-names = "apb", "smi";
|
|
};
|