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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
commit | 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch) | |
tree | a94efe259b9009378be6d90eb30d2b019d95c194 /Documentation/devicetree/bindings/arm/hisilicon/controller/sysctrl.yaml | |
parent | Initial commit. (diff) | |
download | linux-upstream/5.10.209.tar.xz linux-upstream/5.10.209.zip |
Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | Documentation/devicetree/bindings/arm/hisilicon/controller/sysctrl.yaml | 132 |
1 files changed, 132 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/arm/hisilicon/controller/sysctrl.yaml b/Documentation/devicetree/bindings/arm/hisilicon/controller/sysctrl.yaml new file mode 100644 index 000000000..5a53d433b --- /dev/null +++ b/Documentation/devicetree/bindings/arm/hisilicon/controller/sysctrl.yaml @@ -0,0 +1,132 @@ +# 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>; + }; +... |