xref: /linux/Documentation/devicetree/bindings/mfd/syscon.yaml (revision c284d3e423382be3591d5b1e402e330e6c3f726c)
1# SPDX-License-Identifier: GPL-2.0
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/mfd/syscon.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: System Controller Devices
8
9description: |
10  System controller node represents a register region containing a set
11  of miscellaneous registers. The registers are not cohesive enough to
12  represent as any specific type of device. The typical use-case is
13  for some other node's driver, or platform-specific code, to acquire
14  a reference to the syscon node (e.g. by phandle, node path, or
15  search using a specific compatible value), interrogate the node (or
16  associated OS driver) to determine the location of the registers,
17  and access the registers directly.
18
19maintainers:
20  - Lee Jones <lee@kernel.org>
21
22# Need a select with all compatibles listed for compatibility with older
23# dtschema (<2024.02), so this will not be selected for other schemas having
24# syscon fallback.
25select:
26  properties:
27    compatible:
28      contains:
29        enum:
30          - airoha,en7581-pbus-csr
31          - al,alpine-sysfabric-service
32          - allwinner,sun8i-a83t-system-controller
33          - allwinner,sun8i-h3-system-controller
34          - allwinner,sun8i-v3s-system-controller
35          - allwinner,sun50i-a64-system-controller
36          - altr,l3regs
37          - altr,sdr-ctl
38          - amd,pensando-elba-syscon
39          - amlogic,meson-mx-assist
40          - amlogic,meson-mx-bootrom
41          - amlogic,meson8-analog-top
42          - amlogic,meson8b-analog-top
43          - amlogic,meson8-pmu
44          - amlogic,meson8b-pmu
45          - apm,merlin-poweroff-mailbox
46          - apm,mustang-poweroff-mailbox
47          - apm,xgene-csw
48          - apm,xgene-efuse
49          - apm,xgene-mcb
50          - apm,xgene-rb
51          - apm,xgene-scu
52          - atmel,sama5d2-sfrbu
53          - atmel,sama5d3-nfc-io
54          - atmel,sama5d3-sfrbu
55          - atmel,sama5d4-sfrbu
56          - axis,artpec6-syscon
57          - brcm,cru-clkset
58          - brcm,sr-cdru
59          - brcm,sr-mhb
60          - cirrus,ep7209-syscon1
61          - cirrus,ep7209-syscon2
62          - cirrus,ep7209-syscon3
63          - cnxt,cx92755-uc
64          - freecom,fsg-cs2-system-controller
65          - fsl,imx93-aonmix-ns-syscfg
66          - fsl,imx93-wakeupmix-syscfg
67          - fsl,ls1088a-reset
68          - fsl,vf610-anatop
69          - fsl,vf610-mscm-cpucfg
70          - hisilicon,dsa-subctrl
71          - hisilicon,hi6220-sramctrl
72          - hisilicon,hip04-ppe
73          - hisilicon,pcie-sas-subctrl
74          - hisilicon,peri-subctrl
75          - hpe,gxp-sysreg
76          - loongson,ls1b-syscon
77          - loongson,ls1c-syscon
78          - lsi,axxia-syscon
79          - marvell,armada-3700-cpu-misc
80          - marvell,armada-3700-nb-pm
81          - marvell,armada-3700-avs
82          - marvell,armada-3700-usb2-host-misc
83          - marvell,dove-global-config
84          - mediatek,mt2701-pctl-a-syscfg
85          - mediatek,mt2712-pctl-a-syscfg
86          - mediatek,mt6397-pctl-pmic-syscfg
87          - mediatek,mt8135-pctl-a-syscfg
88          - mediatek,mt8135-pctl-b-syscfg
89          - mediatek,mt8173-pctl-a-syscfg
90          - mediatek,mt8365-syscfg
91          - microchip,lan966x-cpu-syscon
92          - microchip,mpfs-sysreg-scb
93          - microchip,sam9x60-sfr
94          - microchip,sama7d65-ddr3phy
95          - microchip,sama7d65-sfrbu
96          - microchip,sama7g5-ddr3phy
97          - mscc,ocelot-cpu-syscon
98          - mstar,msc313-pmsleep
99          - nuvoton,ma35d1-sys
100          - nuvoton,wpcm450-shm
101          - rockchip,px30-qos
102          - rockchip,rk3036-qos
103          - rockchip,rk3066-qos
104          - rockchip,rk3128-qos
105          - rockchip,rk3228-qos
106          - rockchip,rk3288-qos
107          - rockchip,rk3368-qos
108          - rockchip,rk3399-qos
109          - rockchip,rk3528-qos
110          - rockchip,rk3562-qos
111          - rockchip,rk3568-qos
112          - rockchip,rk3576-qos
113          - rockchip,rk3588-qos
114          - rockchip,rv1126-qos
115          - st,spear1340-misc
116          - stericsson,nomadik-pmu
117          - starfive,jh7100-sysmain
118          - ti,am62-opp-efuse-table
119          - ti,am62-usb-phy-ctrl
120          - ti,am625-dss-oldi-io-ctrl
121          - ti,am62p-cpsw-mac-efuse
122          - ti,am654-dss-oldi-io-ctrl
123          - ti,j784s4-acspcie-proxy-ctrl
124          - ti,j784s4-pcie-ctrl
125          - ti,keystone-pllctrl
126  required:
127    - compatible
128
129properties:
130  compatible:
131    items:
132      - enum:
133          - airoha,en7581-pbus-csr
134          - al,alpine-sysfabric-service
135          - allwinner,sun8i-a83t-system-controller
136          - allwinner,sun8i-h3-system-controller
137          - allwinner,sun8i-v3s-system-controller
138          - allwinner,sun50i-a64-system-controller
139          - altr,l3regs
140          - altr,sdr-ctl
141          - amd,pensando-elba-syscon
142          - amlogic,meson-mx-assist
143          - amlogic,meson-mx-bootrom
144          - amlogic,meson8-analog-top
145          - amlogic,meson8b-analog-top
146          - amlogic,meson8-pmu
147          - amlogic,meson8b-pmu
148          - apm,merlin-poweroff-mailbox
149          - apm,mustang-poweroff-mailbox
150          - apm,xgene-csw
151          - apm,xgene-efuse
152          - apm,xgene-mcb
153          - apm,xgene-rb
154          - apm,xgene-scu
155          - atmel,sama5d2-sfrbu
156          - atmel,sama5d3-nfc-io
157          - atmel,sama5d3-sfrbu
158          - atmel,sama5d4-sfrbu
159          - axis,artpec6-syscon
160          - brcm,cru-clkset
161          - brcm,sr-cdru
162          - brcm,sr-mhb
163          - cirrus,ep7209-syscon1
164          - cirrus,ep7209-syscon2
165          - cirrus,ep7209-syscon3
166          - cnxt,cx92755-uc
167          - freecom,fsg-cs2-system-controller
168          - fsl,imx93-aonmix-ns-syscfg
169          - fsl,imx93-wakeupmix-syscfg
170          - fsl,ls1088a-reset
171          - fsl,vf610-anatop
172          - fsl,vf610-mscm-cpucfg
173          - hisilicon,dsa-subctrl
174          - hisilicon,hi6220-sramctrl
175          - hisilicon,hip04-ppe
176          - hisilicon,pcie-sas-subctrl
177          - hisilicon,peri-subctrl
178          - hpe,gxp-sysreg
179          - loongson,ls1b-syscon
180          - loongson,ls1c-syscon
181          - lsi,axxia-syscon
182          - marvell,armada-3700-cpu-misc
183          - marvell,armada-3700-nb-pm
184          - marvell,armada-3700-avs
185          - marvell,armada-3700-usb2-host-misc
186          - marvell,dove-global-config
187          - mediatek,mt2701-pctl-a-syscfg
188          - mediatek,mt2712-pctl-a-syscfg
189          - mediatek,mt6397-pctl-pmic-syscfg
190          - mediatek,mt8135-pctl-a-syscfg
191          - mediatek,mt8135-pctl-b-syscfg
192          - mediatek,mt8173-pctl-a-syscfg
193          - mediatek,mt8365-syscfg
194          - microchip,lan966x-cpu-syscon
195          - microchip,mpfs-sysreg-scb
196          - microchip,sam9x60-sfr
197          - microchip,sama7d65-ddr3phy
198          - microchip,sama7d65-sfrbu
199          - microchip,sama7g5-ddr3phy
200          - mscc,ocelot-cpu-syscon
201          - mstar,msc313-pmsleep
202          - nuvoton,ma35d1-sys
203          - nuvoton,wpcm450-shm
204          - rockchip,px30-qos
205          - rockchip,rk3036-qos
206          - rockchip,rk3066-qos
207          - rockchip,rk3128-qos
208          - rockchip,rk3228-qos
209          - rockchip,rk3288-qos
210          - rockchip,rk3368-qos
211          - rockchip,rk3399-qos
212          - rockchip,rk3528-qos
213          - rockchip,rk3562-qos
214          - rockchip,rk3568-qos
215          - rockchip,rk3576-qos
216          - rockchip,rk3588-qos
217          - rockchip,rv1126-qos
218          - st,spear1340-misc
219          - stericsson,nomadik-pmu
220          - starfive,jh7100-sysmain
221          - ti,am62-opp-efuse-table
222          - ti,am62-usb-phy-ctrl
223          - ti,am625-dss-oldi-io-ctrl
224          - ti,am62p-cpsw-mac-efuse
225          - ti,am654-dss-oldi-io-ctrl
226          - ti,j784s4-acspcie-proxy-ctrl
227          - ti,j784s4-pcie-ctrl
228          - ti,keystone-pllctrl
229      - const: syscon
230
231  reg:
232    maxItems: 1
233
234  resets:
235    maxItems: 1
236
237required:
238  - compatible
239  - reg
240
241allOf:
242  - $ref: syscon-common.yaml#
243
244unevaluatedProperties: false
245
246examples:
247  - |
248    syscon: syscon@1c00000 {
249        compatible = "allwinner,sun8i-h3-system-controller", "syscon";
250        reg = <0x01c00000 0x1000>;
251    };
252...
253