xref: /linux/Documentation/devicetree/bindings/pinctrl/aspeed,ast2500-pinctrl.yaml (revision b83deaa741558babf4b8d51d34f6637ccfff1b26) 
1# SPDX-License-Identifier: GPL-2.0-or-later
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/pinctrl/aspeed,ast2500-pinctrl.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: ASPEED AST2500 Pin Controller
8
9maintainers:
10  - Andrew Jeffery <andrew@aj.id.au>
11
12description: |+
13  The pin controller node should be the child of a syscon node with the
14  required property:
15
16  - compatible: 	Should be one of the following:
17  			"aspeed,ast2500-scu", "syscon", "simple-mfd"
18  			"aspeed,g5-scu", "syscon", "simple-mfd"
19
20  Refer to the the bindings described in
21  Documentation/devicetree/bindings/mfd/syscon.yaml
22
23properties:
24  compatible:
25    const: aspeed,ast2500-pinctrl
26  reg:
27    maxItems: 2
28
29  aspeed,external-nodes:
30    minItems: 2
31    maxItems: 2
32    items:
33      maxItems: 1
34    $ref: /schemas/types.yaml#/definitions/phandle-array
35    description: |
36      A cell of phandles to external controller nodes:
37      0: compatible with "aspeed,ast2500-gfx", "syscon"
38      1: compatible with "aspeed,ast2500-lhc", "syscon"
39
40patternProperties:
41  '^.*$':
42    if:
43      type: object
44    then:
45      patternProperties:
46        "^function|groups$":
47          $ref: "/schemas/types.yaml#/definitions/string"
48          enum: [ ACPI, ADC0, ADC1, ADC10, ADC11, ADC12, ADC13, ADC14, ADC15,
49                  ADC2, ADC3, ADC4, ADC5, ADC6, ADC7, ADC8, ADC9, BMCINT, DDCCLK, DDCDAT,
50                  ESPI, FWSPICS1, FWSPICS2, GPID0, GPID2, GPID4, GPID6, GPIE0, GPIE2,
51                  GPIE4, GPIE6, I2C10, I2C11, I2C12, I2C13, I2C14, I2C3, I2C4, I2C5,
52                  I2C6, I2C7, I2C8, I2C9, LAD0, LAD1, LAD2, LAD3, LCLK, LFRAME, LPCHC,
53                  LPCPD, LPCPLUS, LPCPME, LPCRST, LPCSMI, LSIRQ, MAC1LINK, MAC2LINK,
54                  MDIO1, MDIO2, NCTS1, NCTS2, NCTS3, NCTS4, NDCD1, NDCD2, NDCD3, NDCD4,
55                  NDSR1, NDSR2, NDSR3, NDSR4, NDTR1, NDTR2, NDTR3, NDTR4, NRI1, NRI2,
56                  NRI3, NRI4, NRTS1, NRTS2, NRTS3, NRTS4, OSCCLK, PEWAKE, PNOR, PWM0,
57                  PWM1, PWM2, PWM3, PWM4, PWM5, PWM6, PWM7, RGMII1, RGMII2, RMII1,
58                  RMII2, RXD1, RXD2, RXD3, RXD4, SALT1, SALT10, SALT11, SALT12, SALT13,
59                  SALT14, SALT2, SALT3, SALT4, SALT5, SALT6, SALT7, SALT8, SALT9, SCL1,
60                  SCL2, SD1, SD2, SDA1, SDA2, SGPS1, SGPS2, SIOONCTRL, SIOPBI, SIOPBO,
61                  SIOPWREQ, SIOPWRGD, SIOS3, SIOS5, SIOSCI, SPI1, SPI1CS1, SPI1DEBUG,
62                  SPI1PASSTHRU, SPI2CK, SPI2CS0, SPI2CS1, SPI2MISO, SPI2MOSI, TIMER3,
63                  TIMER4, TIMER5, TIMER6, TIMER7, TIMER8, TXD1, TXD2, TXD3, TXD4, UART6,
64                  USB11BHID, USB2AD, USB2AH, USB2BD, USB2BH, USBCKI, VGABIOSROM, VGAHS,
65                  VGAVS, VPI24, VPO, WDTRST1, WDTRST2]
66
67allOf:
68  - $ref: "pinctrl.yaml#"
69
70required:
71  - compatible
72  - aspeed,external-nodes
73
74additionalProperties: false
75
76examples:
77  - |
78    #include <dt-bindings/clock/aspeed-clock.h>
79    apb {
80        compatible = "simple-bus";
81        #address-cells = <1>;
82        #size-cells = <1>;
83        ranges;
84
85        syscon: scu@1e6e2000 {
86            compatible = "aspeed,ast2500-scu", "syscon", "simple-mfd";
87            reg = <0x1e6e2000 0x1a8>;
88            #clock-cells = <1>;
89            #reset-cells = <1>;
90
91            pinctrl: pinctrl {
92                compatible = "aspeed,ast2500-pinctrl";
93                aspeed,external-nodes = <&gfx>, <&lhc>;
94
95                pinctrl_i2c3_default: i2c3_default {
96                    function = "I2C3";
97                    groups = "I2C3";
98                };
99
100                pinctrl_gpioh0_unbiased_default: gpioh0 {
101                    pins = "A18";
102                    bias-disable;
103                };
104            };
105        };
106
107        gfx: display@1e6e6000 {
108            compatible = "aspeed,ast2500-gfx", "syscon";
109            reg = <0x1e6e6000 0x1000>;
110            reg-io-width = <4>;
111            clocks = <&syscon ASPEED_CLK_GATE_D1CLK>;
112            resets = <&syscon ASPEED_RESET_CRT1>;
113            interrupts = <0x19>;
114            syscon = <&syscon>;
115            memory-region = <&gfx_memory>;
116        };
117    };
118
119    lpc: lpc@1e789000 {
120        compatible = "aspeed,ast2500-lpc", "simple-mfd";
121        reg = <0x1e789000 0x1000>;
122
123        #address-cells = <1>;
124        #size-cells = <1>;
125        ranges = <0x0 0x1e789000 0x1000>;
126
127        lpc_host: lpc-host@80 {
128            compatible = "aspeed,ast2500-lpc-host", "simple-mfd", "syscon";
129            reg = <0x80 0x1e0>;
130            reg-io-width = <4>;
131
132            #address-cells = <1>;
133            #size-cells = <1>;
134            ranges = <0x0 0x80 0x1e0>;
135
136            lhc: lhc@20 {
137                   compatible = "aspeed,ast2500-lhc";
138                   reg = <0x20 0x24>, <0x48 0x8>;
139            };
140        };
141    };
142
143    gfx_memory: framebuffer {
144        size = <0x01000000>;
145        alignment = <0x01000000>;
146        compatible = "shared-dma-pool";
147        reusable;
148    };
149