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cc57d7da MR |
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 | ||
dd3cb467 | 7 | title: System Controller Registers R/W |
cc57d7da MR |
8 | |
9 | description: | | |
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 | ||
19 | maintainers: | |
0a2de5bb | 20 | - Lee Jones <lee@kernel.org> |
cc57d7da MR |
21 | |
22 | select: | |
23 | properties: | |
24 | compatible: | |
25 | contains: | |
26 | enum: | |
27 | - syscon | |
28 | ||
29 | required: | |
30 | - compatible | |
31 | ||
32 | properties: | |
33 | compatible: | |
34 | anyOf: | |
35 | - items: | |
9f60a65b RH |
36 | - enum: |
37 | - allwinner,sun8i-a83t-system-controller | |
38 | - allwinner,sun8i-h3-system-controller | |
39 | - allwinner,sun8i-v3s-system-controller | |
40 | - allwinner,sun50i-a64-system-controller | |
7777dc1f | 41 | - altr,sdr-ctl |
8e993c58 | 42 | - amd,pensando-elba-syscon |
7777dc1f RH |
43 | - apm,xgene-csw |
44 | - apm,xgene-efuse | |
45 | - apm,xgene-mcb | |
46 | - apm,xgene-rb | |
47 | - apm,xgene-scu | |
15fd4ca4 | 48 | - brcm,cru-clkset |
7777dc1f RH |
49 | - brcm,sr-cdru |
50 | - brcm,sr-mhb | |
8ae4069a | 51 | - freecom,fsg-cs2-system-controller |
7a8a4471 PF |
52 | - fsl,imx93-aonmix-ns-syscfg |
53 | - fsl,imx93-wakeupmix-syscfg | |
7777dc1f | 54 | - fsl,ls1088a-reset |
5376471b ZL |
55 | - hisilicon,dsa-subctrl |
56 | - hisilicon,hi6220-sramctrl | |
57 | - hisilicon,pcie-sas-subctrl | |
58 | - hisilicon,peri-subctrl | |
0b053279 | 59 | - hpe,gxp-sysreg |
9876ef1d | 60 | - intel,lgm-syscon |
7e10088b KZ |
61 | - loongson,ls1b-syscon |
62 | - loongson,ls1c-syscon | |
7777dc1f RH |
63 | - marvell,armada-3700-cpu-misc |
64 | - marvell,armada-3700-nb-pm | |
65 | - marvell,armada-3700-avs | |
9876ef1d | 66 | - marvell,armada-3700-usb2-host-misc |
7777dc1f RH |
67 | - mediatek,mt2712-pctl-a-syscfg |
68 | - mediatek,mt6397-pctl-pmic-syscfg | |
9876ef1d RH |
69 | - mediatek,mt8135-pctl-a-syscfg |
70 | - mediatek,mt8135-pctl-b-syscfg | |
7777dc1f | 71 | - mediatek,mt8173-pctl-a-syscfg |
4d83bcbe | 72 | - mediatek,mt8365-syscfg |
d99460ed | 73 | - microchip,lan966x-cpu-syscon |
85032207 | 74 | - microchip,sparx5-cpu-syscon |
4b4b27e4 | 75 | - mstar,msc313-pmsleep |
dbc5e572 | 76 | - nuvoton,ma35d1-sys |
ef170923 | 77 | - nuvoton,wpcm450-shm |
15ad3048 | 78 | - rockchip,px30-qos |
05f3485c | 79 | - rockchip,rk3036-qos |
15ad3048 | 80 | - rockchip,rk3066-qos |
719a2057 | 81 | - rockchip,rk3128-qos |
05f3485c | 82 | - rockchip,rk3228-qos |
15ad3048 | 83 | - rockchip,rk3288-qos |
4ce0808c | 84 | - rockchip,rk3368-qos |
15ad3048 | 85 | - rockchip,rk3399-qos |
f861d1d7 | 86 | - rockchip,rk3568-qos |
3064c115 | 87 | - rockchip,rk3588-qos |
fe969e9f | 88 | - rockchip,rv1126-qos |
4d820dda | 89 | - starfive,jh7100-sysmain |
e9f06bd4 | 90 | - ti,am62-usb-phy-ctrl |
3088ab3f | 91 | - ti,am62p-cpsw-mac-efuse |
cb523495 | 92 | - ti,am654-dss-oldi-io-ctrl |
17bb3a9d | 93 | - ti,am654-serdes-ctrl |
cc1965b0 | 94 | - ti,j784s4-pcie-ctrl |
cc57d7da | 95 | |
9f60a65b | 96 | - const: syscon |
cc57d7da MR |
97 | |
98 | - contains: | |
99 | const: syscon | |
ad440432 | 100 | minItems: 2 |
f5e90351 | 101 | maxItems: 5 # Should be enough |
cc57d7da MR |
102 | |
103 | reg: | |
104 | maxItems: 1 | |
105 | ||
106 | reg-io-width: | |
107 | description: | | |
108 | The size (in bytes) of the IO accesses that should be performed | |
109 | on the device. | |
3d21a460 | 110 | enum: [1, 2, 4, 8] |
cc57d7da | 111 | |
0f4d2619 JK |
112 | resets: |
113 | maxItems: 1 | |
114 | ||
cc57d7da MR |
115 | hwlocks: |
116 | maxItems: 1 | |
117 | description: | |
118 | Reference to a phandle of a hardware spinlock provider node. | |
119 | ||
120 | required: | |
121 | - compatible | |
122 | - reg | |
123 | ||
f5e90351 KK |
124 | allOf: |
125 | - if: | |
126 | properties: | |
127 | compatible: | |
128 | contains: | |
129 | const: simple-mfd | |
130 | then: | |
131 | properties: | |
132 | compatible: | |
133 | minItems: 3 | |
134 | maxItems: 5 | |
135 | ||
6a0e321e | 136 | additionalProperties: true |
cc57d7da MR |
137 | |
138 | examples: | |
139 | - | | |
140 | syscon: syscon@1c00000 { | |
141 | compatible = "allwinner,sun8i-h3-system-controller", "syscon"; | |
142 | reg = <0x01c00000 0x1000>; | |
143 | }; | |
cc57d7da | 144 | ... |