Open Menu / Documentation / devicetree / bindings / pinctrl / bitmain,bm1880-pinctrl.yaml 
  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/pinctrl/bitmain,bm1880-pinctrl.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Bitmain BM1880 Pin Controller

maintainers:
  - Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>

properties:
  compatible:
    const: bitmain,bm1880-pinctrl

  reg:
    maxItems: 1

additionalProperties:
  description: A pin configuration node.
  type: object
  additionalProperties: false

  properties:
    pinmux:
      type: object
      description: Pin multiplexing parameters.
      allOf:
        - $ref: /schemas/pinctrl/pincfg-node.yaml#
        - $ref: /schemas/pinctrl/pinmux-node.yaml#
      additionalProperties: false

      properties:
        pins:
          items:
            pattern: '^MIO[0-9]+$'

        groups:
          items:
            enum: [
              nand_grp, spi_grp, emmc_grp, sdio_grp, eth0_grp, pwm0_grp,
              pwm1_grp, pwm2_grp, pwm3_grp, pwm4_grp, pwm5_grp, pwm6_grp,
              pwm7_grp, pwm8_grp, pwm9_grp, pwm10_grp, pwm11_grp, pwm12_grp,
              pwm13_grp, pwm14_grp, pwm15_grp, pwm16_grp, pwm17_grp,
              pwm18_grp, pwm19_grp, pwm20_grp, pwm21_grp, pwm22_grp,
              pwm23_grp, pwm24_grp, pwm25_grp, pwm26_grp, pwm27_grp,
              pwm28_grp, pwm29_grp, pwm30_grp, pwm31_grp, pwm32_grp,
              pwm33_grp, pwm34_grp, pwm35_grp, pwm36_grp, i2c0_grp,
              i2c1_grp, i2c2_grp, i2c3_grp, i2c4_grp, uart0_grp, uart1_grp,
              uart2_grp, uart3_grp, uart4_grp, uart5_grp, uart6_grp,
              uart7_grp, uart8_grp, uart9_grp, uart10_grp, uart11_grp,
              uart12_grp, uart13_grp, uart14_grp, uart15_grp, gpio0_grp,
              gpio1_grp, gpio2_grp, gpio3_grp, gpio4_grp, gpio5_grp,
              gpio6_grp, gpio7_grp, gpio8_grp, gpio9_grp, gpio10_grp,
              gpio11_grp, gpio12_grp, gpio13_grp, gpio14_grp, gpio15_grp,
              gpio16_grp, gpio17_grp, gpio18_grp, gpio19_grp, gpio20_grp,
              gpio21_grp, gpio22_grp, gpio23_grp, gpio24_grp, gpio25_grp,
              gpio26_grp, gpio27_grp, gpio28_grp, gpio29_grp, gpio30_grp,
              gpio31_grp, gpio32_grp, gpio33_grp, gpio34_grp, gpio35_grp,
              gpio36_grp, gpio37_grp, gpio38_grp, gpio39_grp, gpio40_grp,
              gpio41_grp, gpio42_grp, gpio43_grp, gpio44_grp, gpio45_grp,
              gpio46_grp, gpio47_grp, gpio48_grp, gpio49_grp, gpio50_grp,
              gpio51_grp, gpio52_grp, gpio53_grp, gpio54_grp, gpio55_grp,
              gpio56_grp, gpio57_grp, gpio58_grp, gpio59_grp, gpio60_grp,
              gpio61_grp, gpio62_grp, gpio63_grp, gpio64_grp, gpio65_grp,
              gpio66_grp, gpio67_grp, eth1_grp, i2s0_grp, i2s0_mclkin_grp,
              i2s1_grp, i2s1_mclkin_grp, spi0_grp
            ]

        function:
          items:
            enum: [
              nand, spi, emmc, sdio, eth0, pwm0, pwm1, pwm2, pwm3, pwm4,
              pwm5, pwm6, pwm7, pwm8, pwm9, pwm10, pwm11, pwm12, pwm13,
              pwm14, pwm15, pwm16, pwm17, pwm18, pwm19, pwm20, pwm21, pwm22,
              pwm23, pwm24, pwm25, pwm26, pwm27, pwm28, pwm29, pwm30, pwm31,
              pwm32, pwm33, pwm34, pwm35, pwm36, i2c0, i2c1, i2c2, i2c3,
              i2c4, uart0, uart1, uart2, uart3, uart4, uart5, uart6, uart7,
              uart8, uart9, uart10, uart11, uart12, uart13, uart14, uart15,
              gpio0, gpio1, gpio2, gpio3, gpio4, gpio5, gpio6, gpio7, gpio8,
              gpio9, gpio10, gpio11, gpio12, gpio13, gpio14, gpio15, gpio16,
              gpio17, gpio18, gpio19, gpio20, gpio21, gpio22, gpio23,
              gpio24, gpio25, gpio26, gpio27, gpio28, gpio29, gpio30,
              gpio31, gpio32, gpio33, gpio34, gpio35, gpio36, gpio37,
              gpio38, gpio39, gpio40, gpio41, gpio42, gpio43, gpio44,
              gpio45, gpio46, gpio47, gpio48, gpio49, gpio50, gpio51,
              gpio52, gpio53, gpio54, gpio55, gpio56, gpio57, gpio58,
              gpio59, gpio60, gpio61, gpio62, gpio63, gpio64, gpio65,
              gpio66, gpio67, eth1, i2s0, i2s0_mclkin, i2s1, i2s1_mclkin,
              spi0
            ]

        bias-disable: true
        bias-pull-down: true
        bias-pull-up: true
        input-schmitt-enable: true
        input-schmitt-disable: true

        slew-rate:
          description: >
            Sets slew rate. Valid values: 0 = Slow, 1 = Fast.
          enum: [0, 1]

        drive-strength:
          enum: [4, 8, 12, 16, 20, 24, 28, 32]

      oneOf:
        - required:
            - pins
        - required:
            - groups

      required:
        - function

required:
  - compatible
  - reg

examples:
  - |
    pinctrl@400 {
        compatible = "bitmain,bm1880-pinctrl";
        reg = <0x400 0x120>;

        uart0-default {
            pinmux {
                groups = "uart0_grp";
                function = "uart0";
            };
        };
    };