mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
synced 2025-08-28 18:10:32 +00:00
fdb5a1cb8b
Add documentation for IMX AIPSTZ bridge. Co-developed-by: Daniel Baluta <daniel.baluta@nxp.com> Signed-off-by: Daniel Baluta <daniel.baluta@nxp.com> Signed-off-by: Laurentiu Mihalcea <laurentiu.mihalcea@nxp.com> Reviewed-by: Rob Herring (Arm) <robh@kernel.org> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
105 lines
2.5 KiB
YAML
105 lines
2.5 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
|
|
%YAML 1.2
|
|
---
|
|
$id: http://devicetree.org/schemas/bus/fsl,imx8mp-aipstz.yaml#
|
|
$schema: http://devicetree.org/meta-schemas/core.yaml#
|
|
|
|
title: Secure AHB to IP Slave bus (AIPSTZ) bridge
|
|
|
|
description:
|
|
The secure AIPS bridge (AIPSTZ) acts as a bridge for AHB masters issuing
|
|
transactions to IP Slave peripherals. Additionally, this module offers access
|
|
control configurations meant to restrict which peripherals a master can
|
|
access.
|
|
|
|
maintainers:
|
|
- Laurentiu Mihalcea <laurentiu.mihalcea@nxp.com>
|
|
|
|
properties:
|
|
compatible:
|
|
const: fsl,imx8mp-aipstz
|
|
|
|
reg:
|
|
maxItems: 1
|
|
|
|
power-domains:
|
|
maxItems: 1
|
|
|
|
"#address-cells":
|
|
const: 1
|
|
|
|
"#size-cells":
|
|
const: 1
|
|
|
|
"#access-controller-cells":
|
|
const: 3
|
|
description:
|
|
First cell - consumer ID
|
|
Second cell - consumer type (master or peripheral)
|
|
Third cell - configuration value
|
|
|
|
ranges: true
|
|
|
|
# borrowed from simple-bus.yaml, no additional requirements for children
|
|
patternProperties:
|
|
"@(0|[1-9a-f][0-9a-f]*)$":
|
|
type: object
|
|
additionalProperties: true
|
|
properties:
|
|
reg:
|
|
items:
|
|
minItems: 2
|
|
maxItems: 4
|
|
minItems: 1
|
|
maxItems: 1024
|
|
ranges:
|
|
oneOf:
|
|
- items:
|
|
minItems: 3
|
|
maxItems: 7
|
|
minItems: 1
|
|
maxItems: 1024
|
|
- $ref: /schemas/types.yaml#/definitions/flag
|
|
anyOf:
|
|
- required:
|
|
- reg
|
|
- required:
|
|
- ranges
|
|
|
|
required:
|
|
- compatible
|
|
- reg
|
|
- power-domains
|
|
- "#address-cells"
|
|
- "#size-cells"
|
|
- "#access-controller-cells"
|
|
- ranges
|
|
|
|
additionalProperties: false
|
|
|
|
examples:
|
|
- |
|
|
#include <dt-bindings/clock/imx8mp-clock.h>
|
|
#include <dt-bindings/interrupt-controller/arm-gic.h>
|
|
|
|
bus@30df0000 {
|
|
compatible = "fsl,imx8mp-aipstz";
|
|
reg = <0x30df0000 0x10000>;
|
|
ranges = <0x30c00000 0x30c00000 0x400000>;
|
|
power-domains = <&pgc_audio>;
|
|
#address-cells = <1>;
|
|
#size-cells = <1>;
|
|
#access-controller-cells = <3>;
|
|
|
|
dma-controller@30e00000 {
|
|
compatible = "fsl,imx8mp-sdma", "fsl,imx8mq-sdma";
|
|
reg = <0x30e00000 0x10000>;
|
|
#dma-cells = <3>;
|
|
clocks = <&audio_blk_ctrl IMX8MP_CLK_AUDIOMIX_SDMA3_ROOT>,
|
|
<&clk IMX8MP_CLK_AUDIO_ROOT>;
|
|
clock-names = "ipg", "ahb";
|
|
interrupts = <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>;
|
|
fsl,sdma-ram-script-name = "imx/sdma/sdma-imx7d.bin";
|
|
};
|
|
};
|