xref: /linux/Documentation/devicetree/bindings/mfd/syscon.yaml (revision 55a42f78ffd386e01a5404419f8c5ded7db70a21)
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-device-misc
83          - marvell,armada-3700-usb2-host-misc
84          - marvell,dove-global-config
85          - mediatek,mt2701-pctl-a-syscfg
86          - mediatek,mt2712-pctl-a-syscfg
87          - mediatek,mt6397-pctl-pmic-syscfg
88          - mediatek,mt7988-topmisc
89          - mediatek,mt8135-pctl-a-syscfg
90          - mediatek,mt8135-pctl-b-syscfg
91          - mediatek,mt8173-pctl-a-syscfg
92          - mediatek,mt8365-syscfg
93          - microchip,lan966x-cpu-syscon
94          - microchip,mpfs-control-scb
95          - microchip,mpfs-sysreg-scb
96          - microchip,sam9x60-sfr
97          - microchip,sama7d65-ddr3phy
98          - microchip,sama7d65-sfrbu
99          - microchip,sama7g5-ddr3phy
100          - mscc,ocelot-cpu-syscon
101          - mstar,msc313-pmsleep
102          - nuvoton,ma35d1-sys
103          - nuvoton,wpcm450-shm
104          - qcom,apq8064-mmss-sfpb
105          - qcom,apq8064-sps-sic
106          - rockchip,px30-qos
107          - rockchip,rk3036-qos
108          - rockchip,rk3066-qos
109          - rockchip,rk3128-qos
110          - rockchip,rk3228-qos
111          - rockchip,rk3288-qos
112          - rockchip,rk3368-qos
113          - rockchip,rk3399-qos
114          - rockchip,rk3528-qos
115          - rockchip,rk3562-qos
116          - rockchip,rk3568-qos
117          - rockchip,rk3576-qos
118          - rockchip,rk3588-qos
119          - rockchip,rv1126-qos
120          - st,spear1340-misc
121          - stericsson,nomadik-pmu
122          - starfive,jh7100-sysmain
123          - ti,am62-opp-efuse-table
124          - ti,am62-usb-phy-ctrl
125          - ti,am625-dss-oldi-io-ctrl
126          - ti,am62p-cpsw-mac-efuse
127          - ti,am654-dss-oldi-io-ctrl
128          - ti,j784s4-acspcie-proxy-ctrl
129          - ti,j784s4-pcie-ctrl
130          - ti,keystone-pllctrl
131  required:
132    - compatible
133
134properties:
135  compatible:
136    items:
137      - enum:
138          - airoha,en7581-pbus-csr
139          - al,alpine-sysfabric-service
140          - allwinner,sun8i-a83t-system-controller
141          - allwinner,sun8i-h3-system-controller
142          - allwinner,sun8i-v3s-system-controller
143          - allwinner,sun50i-a64-system-controller
144          - altr,l3regs
145          - altr,sdr-ctl
146          - amd,pensando-elba-syscon
147          - amlogic,meson-mx-assist
148          - amlogic,meson-mx-bootrom
149          - amlogic,meson8-analog-top
150          - amlogic,meson8b-analog-top
151          - amlogic,meson8-pmu
152          - amlogic,meson8b-pmu
153          - apm,merlin-poweroff-mailbox
154          - apm,mustang-poweroff-mailbox
155          - apm,xgene-csw
156          - apm,xgene-efuse
157          - apm,xgene-mcb
158          - apm,xgene-rb
159          - apm,xgene-scu
160          - atmel,sama5d2-sfrbu
161          - atmel,sama5d3-nfc-io
162          - atmel,sama5d3-sfrbu
163          - atmel,sama5d4-sfrbu
164          - axis,artpec6-syscon
165          - brcm,cru-clkset
166          - brcm,sr-cdru
167          - brcm,sr-mhb
168          - cirrus,ep7209-syscon1
169          - cirrus,ep7209-syscon2
170          - cirrus,ep7209-syscon3
171          - cnxt,cx92755-uc
172          - freecom,fsg-cs2-system-controller
173          - fsl,imx93-aonmix-ns-syscfg
174          - fsl,imx93-wakeupmix-syscfg
175          - fsl,ls1088a-reset
176          - fsl,vf610-anatop
177          - fsl,vf610-mscm-cpucfg
178          - hisilicon,dsa-subctrl
179          - hisilicon,hi6220-sramctrl
180          - hisilicon,hip04-ppe
181          - hisilicon,pcie-sas-subctrl
182          - hisilicon,peri-subctrl
183          - hpe,gxp-sysreg
184          - loongson,ls1b-syscon
185          - loongson,ls1c-syscon
186          - lsi,axxia-syscon
187          - marvell,armada-3700-cpu-misc
188          - marvell,armada-3700-nb-pm
189          - marvell,armada-3700-avs
190          - marvell,armada-3700-usb2-host-device-misc
191          - marvell,armada-3700-usb2-host-misc
192          - marvell,dove-global-config
193          - mediatek,mt2701-pctl-a-syscfg
194          - mediatek,mt2712-pctl-a-syscfg
195          - mediatek,mt6397-pctl-pmic-syscfg
196          - mediatek,mt7988-topmisc
197          - mediatek,mt8135-pctl-a-syscfg
198          - mediatek,mt8135-pctl-b-syscfg
199          - mediatek,mt8173-pctl-a-syscfg
200          - mediatek,mt8365-infracfg-nao
201          - mediatek,mt8365-syscfg
202          - microchip,lan966x-cpu-syscon
203          - microchip,mpfs-control-scb
204          - microchip,mpfs-sysreg-scb
205          - microchip,sam9x60-sfr
206          - microchip,sama7d65-ddr3phy
207          - microchip,sama7d65-sfrbu
208          - microchip,sama7g5-ddr3phy
209          - mscc,ocelot-cpu-syscon
210          - mstar,msc313-pmsleep
211          - nuvoton,ma35d1-sys
212          - nuvoton,wpcm450-shm
213          - qcom,apq8064-mmss-sfpb
214          - qcom,apq8064-sps-sic
215          - rockchip,px30-qos
216          - rockchip,rk3036-qos
217          - rockchip,rk3066-qos
218          - rockchip,rk3128-qos
219          - rockchip,rk3228-qos
220          - rockchip,rk3288-qos
221          - rockchip,rk3368-qos
222          - rockchip,rk3399-qos
223          - rockchip,rk3528-qos
224          - rockchip,rk3562-qos
225          - rockchip,rk3568-qos
226          - rockchip,rk3576-qos
227          - rockchip,rk3588-qos
228          - rockchip,rv1126-qos
229          - st,spear1340-misc
230          - stericsson,nomadik-pmu
231          - starfive,jh7100-sysmain
232          - ti,am62-opp-efuse-table
233          - ti,am62-usb-phy-ctrl
234          - ti,am625-dss-oldi-io-ctrl
235          - ti,am62p-cpsw-mac-efuse
236          - ti,am654-dss-oldi-io-ctrl
237          - ti,j784s4-acspcie-proxy-ctrl
238          - ti,j784s4-pcie-ctrl
239          - ti,keystone-pllctrl
240      - const: syscon
241
242  reg:
243    maxItems: 1
244
245  resets:
246    maxItems: 1
247
248required:
249  - compatible
250  - reg
251
252allOf:
253  - $ref: syscon-common.yaml#
254
255unevaluatedProperties: false
256
257examples:
258  - |
259    syscon: syscon@1c00000 {
260        compatible = "allwinner,sun8i-h3-system-controller", "syscon";
261        reg = <0x01c00000 0x1000>;
262    };
263...
264