145 lines
4.0 KiB
YAML
145 lines
4.0 KiB
YAML
# SPDX-License-Identifier: GPL-2.0
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/mfd/syscon.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: System Controller Registers R/W
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description: |
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System controller node represents a register region containing a set
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of miscellaneous registers. The registers are not cohesive enough to
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represent as any specific type of device. The typical use-case is
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for some other node's driver, or platform-specific code, to acquire
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a reference to the syscon node (e.g. by phandle, node path, or
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search using a specific compatible value), interrogate the node (or
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associated OS driver) to determine the location of the registers,
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and access the registers directly.
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maintainers:
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- Lee Jones <lee@kernel.org>
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select:
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properties:
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compatible:
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contains:
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enum:
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- syscon
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required:
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- compatible
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properties:
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compatible:
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anyOf:
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- items:
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- enum:
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- allwinner,sun8i-a83t-system-controller
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- allwinner,sun8i-h3-system-controller
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- allwinner,sun8i-v3s-system-controller
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- allwinner,sun50i-a64-system-controller
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- altr,sdr-ctl
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- amd,pensando-elba-syscon
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- apm,xgene-csw
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- apm,xgene-efuse
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- apm,xgene-mcb
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- apm,xgene-rb
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- apm,xgene-scu
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- brcm,cru-clkset
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- brcm,sr-cdru
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- brcm,sr-mhb
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- freecom,fsg-cs2-system-controller
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- fsl,imx93-aonmix-ns-syscfg
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- fsl,imx93-wakeupmix-syscfg
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- fsl,ls1088a-reset
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- hisilicon,dsa-subctrl
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- hisilicon,hi6220-sramctrl
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- hisilicon,pcie-sas-subctrl
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- hisilicon,peri-subctrl
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- hpe,gxp-sysreg
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- intel,lgm-syscon
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- loongson,ls1b-syscon
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- loongson,ls1c-syscon
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- marvell,armada-3700-cpu-misc
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- marvell,armada-3700-nb-pm
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- marvell,armada-3700-avs
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- marvell,armada-3700-usb2-host-misc
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- mediatek,mt2712-pctl-a-syscfg
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- mediatek,mt6397-pctl-pmic-syscfg
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- mediatek,mt8135-pctl-a-syscfg
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- mediatek,mt8135-pctl-b-syscfg
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- mediatek,mt8173-pctl-a-syscfg
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- mediatek,mt8365-syscfg
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- microchip,lan966x-cpu-syscon
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- microchip,sparx5-cpu-syscon
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- mstar,msc313-pmsleep
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- nuvoton,ma35d1-sys
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- nuvoton,wpcm450-shm
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- rockchip,px30-qos
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- rockchip,rk3036-qos
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- rockchip,rk3066-qos
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- rockchip,rk3128-qos
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- rockchip,rk3228-qos
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- rockchip,rk3288-qos
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- rockchip,rk3368-qos
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- rockchip,rk3399-qos
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- rockchip,rk3568-qos
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- rockchip,rk3588-qos
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- rockchip,rv1126-qos
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- starfive,jh7100-sysmain
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- ti,am62-usb-phy-ctrl
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- ti,am62p-cpsw-mac-efuse
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- ti,am654-dss-oldi-io-ctrl
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- ti,am654-serdes-ctrl
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- ti,j784s4-pcie-ctrl
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- const: syscon
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- contains:
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const: syscon
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minItems: 2
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maxItems: 5 # Should be enough
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reg:
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maxItems: 1
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reg-io-width:
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description: |
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The size (in bytes) of the IO accesses that should be performed
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on the device.
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enum: [1, 2, 4, 8]
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resets:
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maxItems: 1
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hwlocks:
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maxItems: 1
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description:
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Reference to a phandle of a hardware spinlock provider node.
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required:
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- compatible
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- reg
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allOf:
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- if:
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properties:
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compatible:
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contains:
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const: simple-mfd
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then:
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properties:
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compatible:
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minItems: 3
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maxItems: 5
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additionalProperties: true
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examples:
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- |
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syscon: syscon@1c00000 {
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compatible = "allwinner,sun8i-h3-system-controller", "syscon";
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reg = <0x01c00000 0x1000>;
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};
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...
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