cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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imi,rdacm2x-gmsl.yaml (4460B)

      1# SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause
      2# Copyright (C) 2019 Renesas Electronics Corp.
      3%YAML 1.2
      4---
      5$id: http://devicetree.org/schemas/media/i2c/imi,rdacm2x-gmsl.yaml#
      6$schema: http://devicetree.org/meta-schemas/core.yaml#
      7
      8title: IMI D&D RDACM20 and RDACM21 Automotive Camera Platforms
      9
     10maintainers:
     11  - Jacopo Mondi <jacopo+renesas@jmondi.org>
     12  - Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
     13  - Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
     14  - Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
     15
     16description: -|
     17  The IMI D&D RDACM20 and RDACM21 are GMSL-compatible camera designed for
     18  automotive applications.
     19
     20  The RDACM20 camera module encloses a Maxim Integrated MAX9271 GMSL serializer,
     21  coupled with an OV10635 image sensor and an embedded MCU. Both the MCU and
     22  the image sensor are connected to the serializer local I2C bus and are
     23  accessible by the host SoC by direct addressing.
     24
     25  The RDACM21 camera module encloses the same serializer, coupled with an
     26  OV10640 image sensor and an OV490 ISP. Only the OV490 ISP is interfaced to
     27  the serializer local I2C bus while the image sensor is not accessible from
     28  the host SoC.
     29
     30  They both connect to a remote GMSL endpoint through a coaxial cable.
     31
     32                                                   IMI RDACM20
     33  +---------------+                        +--------------------------------+
     34  |      GMSL     |   <- Video Stream      |       <- Video--------\        |
     35  |               |< === GMSL Link ====== >|MAX9271<- I2C bus-> <-->OV10635 |
     36  | de-serializer |   <- I2C messages ->   |                   \<-->MCU     |
     37  +---------------+                        +--------------------------------+
     38
     39                                                   IMI RDACM21
     40  +---------------+                        +--------------------------------+
     41  |      GMSL     |   <- Video Stream      |       <- Video--------\        |
     42  |               |< === GMSL Link ====== >|MAX9271<- I2C bus-> <-->OV490   |
     43  |               |   <- I2C messages ->   |                          |     |
     44  | de-serializer |                        |          OV10640 <-------|     |
     45  +---------------+                        +--------------------------------+
     46
     47  Both camera modules serialize video data generated by the embedded camera
     48  sensor on the GMSL serial channel to a remote GMSL de-serializer. They also
     49  receive and transmit I2C messages encapsulated and transmitted on the GMSL
     50  bidirectional control channel.
     51
     52  All I2C traffic received on the GMSL link not directed to the serializer is
     53  propagated on the local I2C bus to the remote device there connected. All the
     54  I2C traffic generated on the local I2C bus not directed to the serializer is
     55  propagated to the remote de-serializer encapsulated in the GMSL control
     56  channel.
     57
     58  The RDACM20 and RDACM21 DT node should be a direct child of the GMSL
     59  deserializer's I2C bus corresponding to the GMSL link that the camera is
     60  attached to.
     61
     62properties:
     63  '#address-cells':
     64    const: 1
     65
     66  '#size-cells':
     67    const: 0
     68
     69  compatible:
     70    enum:
     71      - imi,rdacm20
     72      - imi,rdacm21
     73
     74  reg:
     75    description: -|
     76      I2C device addresses, the first to be assigned to the serializer, the
     77      following ones to be assigned to the remote devices.
     78
     79      For RDACM20 the second entry of the property is assigned to the
     80      OV10635 image sensor and the optional third one to the embedded MCU.
     81
     82      For RDACM21 the second entry is assigned to the OV490 ISP and the optional
     83      third one ignored.
     84
     85    minItems: 2
     86    maxItems: 3
     87
     88  port:
     89    $ref: /schemas/graph.yaml#/properties/port
     90    description:
     91      Connection to the remote GMSL endpoint.
     92
     93required:
     94  - compatible
     95  - reg
     96  - port
     97
     98additionalProperties: false
     99
    100examples:
    101  - |
    102    i2c@e66d8000 {
    103      #address-cells = <1>;
    104      #size-cells = <0>;
    105
    106      reg = <0 0xe66d8000>;
    107
    108      camera@31 {
    109        compatible = "imi,rdacm20";
    110        reg = <0x31>, <0x41>, <0x51>;
    111
    112        port {
    113          rdacm20_out0: endpoint {
    114            remote-endpoint = <&max9286_in0>;
    115          };
    116        };
    117      };
    118    };
    119
    120  - |
    121    i2c@e66d8000 {
    122      #address-cells = <1>;
    123      #size-cells = <0>;
    124
    125      reg = <0 0xe66d8000>;
    126
    127      camera@31 {
    128        compatible = "imi,rdacm21";
    129        reg = <0x31>, <0x41>;
    130
    131        port {
    132          rdacm21_out0: endpoint {
    133            remote-endpoint = <&max9286_in0>;
    134          };
    135        };
    136      };
    137    };