133 lines
3.4 KiB
YAML
133 lines
3.4 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
|
|
%YAML 1.2
|
|
---
|
|
$id: http://devicetree.org/schemas/arm/hisilicon/controller/sysctrl.yaml#
|
|
$schema: http://devicetree.org/meta-schemas/core.yaml#
|
|
|
|
title: Hisilicon system controller
|
|
|
|
maintainers:
|
|
- Wei Xu <xuwei5@hisilicon.com>
|
|
|
|
description: |
|
|
The Hisilicon system controller is used on many Hisilicon boards, it can be
|
|
used to assist the slave core startup, reboot the system, etc.
|
|
|
|
There are some variants of the Hisilicon system controller, such as HiP01,
|
|
Hi3519, Hi6220 system controller, each of them is mostly compatible with the
|
|
Hisilicon system controller, but some same registers located at different
|
|
offset. In addition, the HiP01 system controller has some specific control
|
|
registers for HIP01 SoC family, such as slave core boot.
|
|
|
|
The compatible names of each system controller are as follows:
|
|
Hisilicon system controller --> hisilicon,sysctrl
|
|
HiP01 system controller --> hisilicon,hip01-sysctrl
|
|
Hi6220 system controller --> hisilicon,hi6220-sysctrl
|
|
Hi3519 system controller --> hisilicon,hi3519-sysctrl
|
|
|
|
allOf:
|
|
- if:
|
|
properties:
|
|
compatible:
|
|
contains:
|
|
const: hisilicon,hi6220-sysctrl
|
|
then:
|
|
required:
|
|
- '#clock-cells'
|
|
|
|
properties:
|
|
compatible:
|
|
oneOf:
|
|
- items:
|
|
- enum:
|
|
- hisilicon,sysctrl
|
|
- hisilicon,hi6220-sysctrl
|
|
- hisilicon,hi3519-sysctrl
|
|
- const: syscon
|
|
- items:
|
|
- const: hisilicon,hip01-sysctrl
|
|
- const: hisilicon,sysctrl
|
|
|
|
reg:
|
|
maxItems: 1
|
|
|
|
smp-offset:
|
|
description: |
|
|
offset in sysctrl for notifying slave cpu booting
|
|
cpu 1, reg;
|
|
cpu 2, reg + 0x4;
|
|
cpu 3, reg + 0x8;
|
|
If reg value is not zero, cpun exit wfi and go
|
|
$ref: /schemas/types.yaml#/definitions/uint32
|
|
|
|
resume-offset:
|
|
description: offset in sysctrl for notifying cpu0 when resume
|
|
$ref: /schemas/types.yaml#/definitions/uint32
|
|
|
|
reboot-offset:
|
|
description: offset in sysctrl for system reboot
|
|
$ref: /schemas/types.yaml#/definitions/uint32
|
|
|
|
'#clock-cells':
|
|
const: 1
|
|
|
|
'#reset-cells':
|
|
const: 1
|
|
|
|
'#address-cells':
|
|
const: 1
|
|
|
|
'#size-cells':
|
|
const: 1
|
|
|
|
ranges: true
|
|
|
|
required:
|
|
- compatible
|
|
- reg
|
|
|
|
additionalProperties:
|
|
type: object
|
|
|
|
examples:
|
|
- |
|
|
/* Hisilicon system controller */
|
|
system-controller@802000 {
|
|
compatible = "hisilicon,sysctrl", "syscon";
|
|
#address-cells = <1>;
|
|
#size-cells = <1>;
|
|
ranges = <0 0x802000 0x1000>;
|
|
reg = <0x802000 0x1000>;
|
|
|
|
smp-offset = <0x31c>;
|
|
resume-offset = <0x308>;
|
|
reboot-offset = <0x4>;
|
|
|
|
clock: clock@0 {
|
|
compatible = "hisilicon,hi3620-clock";
|
|
reg = <0 0x10000>;
|
|
#clock-cells = <1>;
|
|
};
|
|
};
|
|
|
|
/* HiP01 system controller */
|
|
system-controller@10000000 {
|
|
compatible = "hisilicon,hip01-sysctrl", "hisilicon,sysctrl";
|
|
reg = <0x10000000 0x1000>;
|
|
reboot-offset = <0x4>;
|
|
};
|
|
|
|
/* Hi6220 system controller */
|
|
system-controller@f7030000 {
|
|
compatible = "hisilicon,hi6220-sysctrl", "syscon";
|
|
reg = <0xf7030000 0x2000>;
|
|
#clock-cells = <1>;
|
|
};
|
|
|
|
/* Hi3519 system controller */
|
|
system-controller@12010000 {
|
|
compatible = "hisilicon,hi3519-sysctrl", "syscon";
|
|
reg = <0x12010000 0x1000>;
|
|
};
|
|
...
|