summaryrefslogtreecommitdiffstats
path: root/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.yaml
blob: 1394557517b1822d8502b8502160f0d6bc857b1a (plain)
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
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/usb/ci-hdrc-usb2.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: USB2 ChipIdea USB controller

maintainers:
  - Xu Yang <xu.yang_2@nxp.com>
  - Peng Fan <peng.fan@nxp.com>

properties:
  compatible:
    oneOf:
      - enum:
          - chipidea,usb2
          - lsi,zevio-usb
          - nvidia,tegra20-ehci
          - nvidia,tegra20-udc
          - nvidia,tegra30-ehci
          - nvidia,tegra30-udc
          - nvidia,tegra114-udc
          - nvidia,tegra124-udc
          - qcom,ci-hdrc
      - items:
          - enum:
              - nvidia,tegra114-ehci
              - nvidia,tegra124-ehci
              - nvidia,tegra210-ehci
          - const: nvidia,tegra30-ehci
      - items:
          - enum:
              - fsl,imx23-usb
              - fsl,imx25-usb
              - fsl,imx28-usb
              - fsl,imx35-usb
              - fsl,imx50-usb
              - fsl,imx51-usb
              - fsl,imx53-usb
              - fsl,imx6q-usb
              - fsl,imx6sl-usb
              - fsl,imx6sx-usb
              - fsl,imx6ul-usb
              - fsl,imx7d-usb
              - fsl,vf610-usb
          - const: fsl,imx27-usb
      - items:
          - enum:
              - fsl,imx8dxl-usb
              - fsl,imx8ulp-usb
          - const: fsl,imx7ulp-usb
          - const: fsl,imx6ul-usb
      - items:
          - enum:
              - fsl,imx8mm-usb
              - fsl,imx8mn-usb
          - const: fsl,imx7d-usb
          - const: fsl,imx27-usb
      - items:
          - enum:
              - fsl,imx6sll-usb
              - fsl,imx7ulp-usb
          - const: fsl,imx6ul-usb
          - const: fsl,imx27-usb
      - items:
          - const: xlnx,zynq-usb-2.20a
          - const: chipidea,usb2

  reg:
    minItems: 1
    maxItems: 2

  interrupts:
    minItems: 1
    maxItems: 2

  clocks:
    minItems: 1
    maxItems: 3

  clock-names:
    minItems: 1
    maxItems: 3

  dr_mode: true

  power-domains:
    maxItems: 1

  resets:
    maxItems: 1

  reset-names:
    maxItems: 1

  "#reset-cells":
    const: 1

  phy_type: true

  itc-setting:
    description:
      interrupt threshold control register control, the setting should be
      aligned with ITC bits at register USBCMD.
    $ref: /schemas/types.yaml#/definitions/uint32

  ahb-burst-config:
    description:
      it is vendor dependent, the required value should be aligned with
      AHBBRST at SBUSCFG, the range is from 0x0 to 0x7. This property is
      used to change AHB burst configuration, check the chipidea spec for
      meaning of each value. If this property is not existed, it will use
      the reset value.
    $ref: /schemas/types.yaml#/definitions/uint32
    minimum: 0x0
    maximum: 0x7

  tx-burst-size-dword:
    description:
      it is vendor dependent, the tx burst size in dword (4 bytes), This
      register represents the maximum length of a the burst in 32-bit
      words while moving data from system memory to the USB bus, the value
      of this property will only take effect if property "ahb-burst-config"
      is set to 0, if this property is missing the reset default of the
      hardware implementation will be used.
    $ref: /schemas/types.yaml#/definitions/uint32
    minimum: 0x0
    maximum: 0x20

  rx-burst-size-dword:
    description:
      it is vendor dependent, the rx burst size in dword (4 bytes), This
      register represents the maximum length of a the burst in 32-bit words
      while moving data from the USB bus to system memory, the value of
      this property will only take effect if property "ahb-burst-config"
      is set to 0, if this property is missing the reset default of the
      hardware implementation will be used.
    $ref: /schemas/types.yaml#/definitions/uint32
    minimum: 0x0
    maximum: 0x20

  extcon:
    description:
      Phandles to external connector devices. First phandle should point
      to external connector, which provide "USB" cable events, the second
      should point to external connector device, which provide "USB-HOST"
      cable events. If one of the external connector devices is not
      required, empty <0> phandle should be specified.
    $ref: /schemas/types.yaml#/definitions/phandle-array
    minItems: 1
    items:
      - description: vbus extcon
      - description: id extcon

  phy-clkgate-delay-us:
    description:
      The delay time (us) between putting the PHY into low power mode and
      gating the PHY clock.

  non-zero-ttctrl-ttha:
    description:
      After setting this property, the value of register ttctrl.ttha
      will be 0x7f; if not, the value will be 0x0, this is the default
      value. It needs to be very carefully for setting this property, it
      is recommended that consult with your IC engineer before setting
      this value.  On the most of chipidea platforms, the "usage_tt" flag
      at RTL is 0, so this property only affects siTD.

      If this property is not set, the max packet size is 1023 bytes, and
      if the total of packet size for previous transactions are more than
      256 bytes, it can't accept any transactions within this frame. The
      use case is single transaction, but higher frame rate.

      If this property is set, the max packet size is 188 bytes, it can
      handle more transactions than above case, it can accept transactions
      until it considers the left room size within frame is less than 188
      bytes, software needs to make sure it does not send more than 90%
      maximum_periodic_data_per_frame. The use case is multiple
      transactions, but less frame rate.
    type: boolean

  mux-controls:
    description:
      The mux control for toggling host/device output of this controller.
      It's expected that a mux state of 0 indicates device mode and a mux
      state of 1 indicates host mode.
    maxItems: 1

  mux-control-names:
    const: usb_switch

  operating-points-v2:
    description: A phandle to the OPP table containing the performance states.
    $ref: /schemas/types.yaml#/definitions/phandle

  pinctrl-names:
    description:
      Names for optional pin modes in "default", "host", "device".
      In case of HSIC-mode, "idle" and "active" pin modes are mandatory.
      In this case, the "idle" state needs to pull down the data and
      strobe pin and the "active" state needs to pull up the strobe pin.
    oneOf:
      - items:
          - const: idle
          - const: active
      - items:
          - const: default
          - enum:
              - host
              - device
      - items:
          - const: default

  pinctrl-0:
    maxItems: 1

  pinctrl-1:
    maxItems: 1

  phys:
    maxItems: 1

  phy-names:
    const: usb-phy

  phy-select:
    description:
      Phandler of TCSR node with two argument that indicate register
      offset, and phy index
    $ref: /schemas/types.yaml#/definitions/phandle-array
    items:
      - description: phandle to TCSR node
      - description: register offset
      - description: phy index

  vbus-supply:
    description: reference to the VBUS regulator.

  fsl,usbmisc:
    description:
      Phandler of non-core register device, with one argument that
      indicate usb controller index
    $ref: /schemas/types.yaml#/definitions/phandle-array
    items:
      - items:
          - description: phandle to usbmisc node
          - description: index of usb controller

  fsl,anatop:
    description: phandle for the anatop node.
    $ref: /schemas/types.yaml#/definitions/phandle

  disable-over-current:
    type: boolean
    description: disable over current detect

  over-current-active-low:
    type: boolean
    description: over current signal polarity is active low

  over-current-active-high:
    type: boolean
    description:
      Over current signal polarity is active high. It's recommended to
      specify the over current polarity.

  power-active-high:
    type: boolean
    description: power signal polarity is active high

  external-vbus-divider:
    type: boolean
    description: enables off-chip resistor divider for Vbus

  samsung,picophy-pre-emp-curr-control:
    description:
      HS Transmitter Pre-Emphasis Current Control. This signal controls
      the amount of current sourced to the USB_OTG*_DP and USB_OTG*_DN
      pins after a J-to-K or K-to-J transition. The range is from 0x0 to
      0x3, the default value is 0x1. Details can refer to TXPREEMPAMPTUNE0
      bits of USBNC_n_PHY_CFG1.
    $ref: /schemas/types.yaml#/definitions/uint32
    minimum: 0x0
    maximum: 0x3

  samsung,picophy-dc-vol-level-adjust:
    description:
      HS DC Voltage Level Adjustment. Adjust the high-speed transmitter DC
      level voltage. The range is from 0x0 to 0xf, the default value is
      0x3. Details can refer to TXVREFTUNE0 bits of USBNC_n_PHY_CFG1.
    $ref: /schemas/types.yaml#/definitions/uint32
    minimum: 0x0
    maximum: 0xf

  fsl,picophy-rise-fall-time-adjust:
    description:
      HS Transmitter Rise/Fall Time Adjustment. Adjust the rise/fall times
      of the high-speed transmitter waveform. It has no unit. The rise/fall
      time will be increased or decreased by a certain percentage relative
      to design default time. (0:-10%; 1:design default; 2:+15%; 3:+20%)
      Details can refer to TXRISETUNE0 bit of USBNC_n_PHY_CFG1.
    $ref: /schemas/types.yaml#/definitions/uint32
    minimum: 0
    maximum: 3
    default: 1

  usb-phy:
    description: phandle for the PHY device. Use "phys" instead.
    $ref: /schemas/types.yaml#/definitions/phandle
    deprecated: true

  fsl,usbphy:
    description: phandle of usb phy that connects to the port. Use "phys" instead.
    $ref: /schemas/types.yaml#/definitions/phandle
    deprecated: true

  nvidia,phy:
    description: phandle of usb phy that connects to the port. Use "phys" instead.
    $ref: /schemas/types.yaml#/definitions/phandle
    deprecated: true

  nvidia,needs-double-reset:
    description: Indicates double reset or not.
    type: boolean
    deprecated: true

  port:
    description:
      Any connector to the data bus of this controller should be modelled
      using the OF graph bindings specified, if the "usb-role-switch"
      property is used.
    $ref: /schemas/graph.yaml#/properties/port

  reset-gpios:
    maxItems: 1

  ulpi:
    type: object
    additionalProperties: false
    patternProperties:
      "^phy(-[0-9])?$":
        description: The phy child node for Qcom chips.
        type: object
        $ref: /schemas/phy/qcom,usb-hs-phy.yaml

dependencies:
  port: [ usb-role-switch ]
  mux-controls: [ mux-control-names ]

required:
  - compatible
  - reg
  - interrupts

allOf:
  - $ref: usb-hcd.yaml#
  - $ref: usb-drd.yaml#
  - if:
      properties:
        phy_type:
          const: hsic
      required:
        - phy_type
    then:
      properties:
        pinctrl-names:
          items:
            - const: idle
            - const: active
    else:
      properties:
        pinctrl-names:
          minItems: 1
          maxItems: 2
          oneOf:
            - items:
                - const: default
                - enum:
                    - host
                    - device
            - items:
                - const: default
  - if:
      properties:
        compatible:
          contains:
            enum:
              - chipidea,usb2
              - lsi,zevio-usb
              - nvidia,tegra20-udc
              - nvidia,tegra30-udc
              - nvidia,tegra114-udc
              - nvidia,tegra124-udc
              - qcom,ci-hdrc
              - xlnx,zynq-usb-2.20a
    then:
      properties:
        fsl,usbmisc: false
        disable-over-current: false
        over-current-active-low: false
        over-current-active-high: false
        power-active-high: false
        external-vbus-divider: false
        samsung,picophy-pre-emp-curr-control: false
        samsung,picophy-dc-vol-level-adjust: false

unevaluatedProperties: false

examples:
  - |
    #include <dt-bindings/interrupt-controller/arm-gic.h>
    #include <dt-bindings/clock/berlin2.h>

    usb@f7ed0000 {
        compatible = "chipidea,usb2";
        reg = <0xf7ed0000 0x10000>;
        interrupts = <GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>;
        clocks = <&chip CLKID_USB0>;
        phys = <&usb_phy0>;
        phy-names = "usb-phy";
        vbus-supply = <&reg_usb0_vbus>;
        itc-setting = <0x4>; /* 4 micro-frames */
         /* Incremental burst of unspecified length */
        ahb-burst-config = <0x0>;
        tx-burst-size-dword = <0x10>; /* 64 bytes */
        rx-burst-size-dword = <0x10>;
        extcon = <0>, <&usb_id>;
        phy-clkgate-delay-us = <400>;
        mux-controls = <&usb_switch>;
        mux-control-names = "usb_switch";
    };

  # Example for HSIC:
  - |
    #include <dt-bindings/interrupt-controller/arm-gic.h>
    #include <dt-bindings/clock/imx6qdl-clock.h>

    usb@2184400 {
        compatible = "fsl,imx6q-usb", "fsl,imx27-usb";
        reg = <0x02184400 0x200>;
        interrupts = <0 41 IRQ_TYPE_LEVEL_HIGH>;
        clocks = <&clks IMX6QDL_CLK_USBOH3>;
        fsl,usbphy = <&usbphynop1>;
        fsl,usbmisc = <&usbmisc 2>;
        phy_type = "hsic";
        dr_mode = "host";
        ahb-burst-config = <0x0>;
        tx-burst-size-dword = <0x10>;
        rx-burst-size-dword = <0x10>;
        pinctrl-names = "idle", "active";
        pinctrl-0 = <&pinctrl_usbh2_idle>;
        pinctrl-1 = <&pinctrl_usbh2_active>;
        #address-cells = <1>;
        #size-cells = <0>;

        ethernet@1 {
            compatible = "usb424,9730";
            reg = <1>;
        };
    };

...