mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
synced 2025-09-03 17:51:23 +00:00
5959618631
Add the child nodes that can be found under this node. Then as done for other similar devices (J7200 and J721s2) add support for the AM654 system controller to this binding. Signed-off-by: Andrew Davis <afd@ti.com> Reviewed-by: Rob Herring (Arm) <robh@kernel.org> Link: https://lore.kernel.org/r/20250421214620.3770172-2-afd@ti.com Signed-off-by: Nishanth Menon <nm@ti.com>
138 lines
3.7 KiB
YAML
138 lines
3.7 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
|
|
# Copyright (C) 2020 Texas Instruments Incorporated - http://www.ti.com/
|
|
%YAML 1.2
|
|
---
|
|
$id: http://devicetree.org/schemas/soc/ti/ti,j721e-system-controller.yaml#
|
|
$schema: http://devicetree.org/meta-schemas/core.yaml#
|
|
|
|
title: TI J721e System Controller Registers R/W
|
|
|
|
description: |
|
|
This represents the Control Module registers (CTRL_MMR0) on the SoC.
|
|
System controller node represents a register region containing a set
|
|
of miscellaneous registers. The registers are not cohesive enough to
|
|
represent as any specific type of device. The typical use-case is
|
|
for some other node's driver, or platform-specific code, to acquire
|
|
a reference to the syscon node (e.g. by phandle, node path, or
|
|
search using a specific compatible value), interrogate the node (or
|
|
associated OS driver) to determine the location of the registers,
|
|
and access the registers directly.
|
|
|
|
maintainers:
|
|
- Kishon Vijay Abraham I <kishon@kernel.org>
|
|
- Roger Quadros <rogerq@kernel.org>
|
|
|
|
properties:
|
|
compatible:
|
|
items:
|
|
- enum:
|
|
- ti,am654-system-controller
|
|
- ti,j7200-system-controller
|
|
- ti,j721e-system-controller
|
|
- ti,j721s2-system-controller
|
|
- const: syscon
|
|
- const: simple-mfd
|
|
|
|
reg:
|
|
maxItems: 1
|
|
|
|
"#address-cells":
|
|
const: 1
|
|
|
|
"#size-cells":
|
|
const: 1
|
|
|
|
ranges: true
|
|
|
|
patternProperties:
|
|
# Optional children
|
|
"^mux-controller@[0-9a-f]+$":
|
|
type: object
|
|
description:
|
|
This is the SERDES lane control mux.
|
|
|
|
"^clock-controller@[0-9a-f]+$":
|
|
type: object
|
|
$ref: /schemas/clock/ti,am654-ehrpwm-tbclk.yaml#
|
|
description:
|
|
Clock provider for TI EHRPWM nodes.
|
|
|
|
"phy@[0-9a-f]+$":
|
|
type: object
|
|
$ref: /schemas/phy/ti,phy-gmii-sel.yaml#
|
|
description:
|
|
The phy node corresponding to the ethernet MAC.
|
|
|
|
"^chipid@[0-9a-f]+$":
|
|
type: object
|
|
$ref: /schemas/hwinfo/ti,k3-socinfo.yaml#
|
|
description:
|
|
The node corresponding to SoC chip identification.
|
|
|
|
"^pcie-ctrl@[0-9a-f]+$":
|
|
type: object
|
|
description:
|
|
The node corresponding to PCIe control register.
|
|
|
|
"^clock@[0-9a-f]+$":
|
|
type: object
|
|
$ref: /schemas/soc/ti/ti,am654-serdes-ctrl.yaml#
|
|
description:
|
|
This is the Serdes Control region.
|
|
|
|
"^dss-oldi-io-ctrl@[0-9a-f]+$":
|
|
type: object
|
|
$ref: /schemas/mfd/syscon.yaml#
|
|
description:
|
|
This is the DSS OLDI CTRL region.
|
|
|
|
required:
|
|
- compatible
|
|
- reg
|
|
- "#address-cells"
|
|
- "#size-cells"
|
|
- ranges
|
|
|
|
additionalProperties: false
|
|
|
|
examples:
|
|
- |
|
|
scm_conf: scm-conf@100000 {
|
|
compatible = "ti,j721e-system-controller", "syscon", "simple-mfd";
|
|
reg = <0x00100000 0x1c000>;
|
|
#address-cells = <1>;
|
|
#size-cells = <1>;
|
|
ranges;
|
|
|
|
serdes_ln_ctrl: mux-controller@4080 {
|
|
compatible = "mmio-mux";
|
|
reg = <0x00004080 0x50>;
|
|
|
|
#mux-control-cells = <1>;
|
|
mux-reg-masks =
|
|
<0x4080 0x3>, <0x4084 0x3>, /* SERDES0 lane0/1 select */
|
|
<0x4090 0x3>, <0x4094 0x3>, /* SERDES1 lane0/1 select */
|
|
<0x40a0 0x3>, <0x40a4 0x3>, /* SERDES2 lane0/1 select */
|
|
<0x40b0 0x3>, <0x40b4 0x3>, /* SERDES3 lane0/1 select */
|
|
<0x40c0 0x3>, <0x40c4 0x3>, <0x40c8 0x3>, <0x40cc 0x3>;
|
|
/* SERDES4 lane0/1/2/3 select */
|
|
};
|
|
|
|
clock-controller@4140 {
|
|
compatible = "ti,am654-ehrpwm-tbclk";
|
|
reg = <0x4140 0x18>;
|
|
#clock-cells = <1>;
|
|
};
|
|
|
|
chipid@14 {
|
|
compatible = "ti,am654-chipid";
|
|
reg = <0x14 0x4>;
|
|
};
|
|
|
|
pcie0_ctrl: pcie-ctrl@4070 {
|
|
compatible = "ti,j784s4-pcie-ctrl", "syscon";
|
|
reg = <0x4070 0x4>;
|
|
};
|
|
};
|
|
...
|