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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atmel,at91sam-i2c.yaml (3501B)

      1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
      2# Copyright (C) 2022 Microchip Technology, Inc. and its subsidiaries
      3%YAML 1.2
      4---
      5$id: http://devicetree.org/schemas/i2c/atmel,at91sam-i2c.yaml#
      6$schema: http://devicetree.org/meta-schemas/core.yaml#
      7
      8title: I2C for Atmel/Microchip platforms
      9
     10maintainers:
     11  - Alexandre Belloni <alexandre.belloni@bootlin.com>
     12
     13properties:
     14  compatible:
     15    oneOf:
     16      - items:
     17          - enum:
     18              - atmel,at91rm9200-i2c
     19              - atmel,at91sam9261-i2c
     20              - atmel,at91sam9260-i2c
     21              - atmel,at91sam9g20-i2c
     22              - atmel,at91sam9g10-i2c
     23              - atmel,at91sam9x5-i2c
     24              - atmel,sama5d4-i2c
     25              - atmel,sama5d2-i2c
     26              - microchip,sam9x60-i2c
     27      - items:
     28          - const: microchip,sama7g5-i2c
     29          - const: microchip,sam9x60-i2c
     30
     31  reg:
     32    maxItems: 1
     33
     34  interrupts:
     35    maxItems: 1
     36
     37  "#address-cells":
     38    const: 1
     39
     40  "#size-cells":
     41    const: 0
     42
     43  clocks:
     44    maxItems: 1
     45
     46  clock-frequency:
     47    default: 100000
     48
     49  dmas:
     50    items:
     51      - description: TX DMA Channel Specifier
     52      - description: RX DMA Channel Specifier
     53
     54  dma-names:
     55    items:
     56      - const: tx
     57      - const: rx
     58
     59  atmel,fifo-size:
     60    $ref: /schemas/types.yaml#/definitions/uint32
     61    description: |
     62      Maximum number of data the RX and TX FIFOs can store for
     63      FIFO capable I2C controllers.
     64
     65  scl-gpios: true
     66
     67  sda-gpios: true
     68
     69required:
     70  - compatible
     71  - reg
     72  - interrupts
     73  - "#address-cells"
     74  - "#size-cells"
     75  - clocks
     76
     77allOf:
     78  - $ref: "i2c-controller.yaml"
     79  - if:
     80      properties:
     81        compatible:
     82          contains:
     83            enum:
     84              - atmel,sama5d4-i2c
     85              - atmel,sama5d2-i2c
     86              - microchip,sam9x60-i2c
     87              - microchip,sama7g5-i2c
     88    then:
     89      properties:
     90        i2c-sda-hold-time-ns:
     91          description:
     92            TWD hold time
     93          maxItems: 1
     94
     95unevaluatedProperties: false
     96
     97examples:
     98  - |
     99    #include <dt-bindings/interrupt-controller/irq.h>
    100    #include <dt-bindings/dma/at91.h>
    101    #include <dt-bindings/gpio/gpio.h>
    102
    103    i2c0: i2c@fff84000 {
    104        compatible = "atmel,at91sam9g20-i2c";
    105        reg = <0xfff84000 0x100>;
    106        interrupts = <12 IRQ_TYPE_LEVEL_HIGH 6>;
    107        #address-cells = <1>;
    108        #size-cells = <0>;
    109        clocks = <&twi0_clk>;
    110        clock-frequency = <400000>;
    111
    112        eeprom@50 {
    113            compatible = "atmel,24c512";
    114            reg = <0x50>;
    115            pagesize = <128>;
    116        };
    117    };
    118
    119    i2c1: i2c@f8034600 {
    120        compatible = "atmel,sama5d2-i2c";
    121        reg = <0xf8034600 0x100>;
    122        interrupts = <19 IRQ_TYPE_LEVEL_HIGH 7>;
    123        dmas = <&dma0
    124            (AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1))
    125            AT91_XDMAC_DT_PERID(11)>,
    126               <&dma0
    127            (AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1))
    128            AT91_XDMAC_DT_PERID(12)>;
    129        dma-names = "tx", "rx";
    130        #address-cells = <1>;
    131        #size-cells = <0>;
    132        clocks = <&flx0>;
    133        atmel,fifo-size = <16>;
    134        i2c-sda-hold-time-ns = <336>;
    135        pinctrl-names = "default", "gpio";
    136        pinctrl-0 = <&pinctrl_i2c0>;
    137        pinctrl-1 = <&pinctrl_i2c0_gpio>;
    138        sda-gpios = <&pioA 30 GPIO_ACTIVE_HIGH>;
    139        scl-gpios = <&pioA 31 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
    140
    141        eeprom@54 {
    142            compatible = "atmel,24c02";
    143            reg = <0x54>;
    144            pagesize = <16>;
    145        };
    146    };