cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
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samsung,exynos7885-clock.yaml (4793B)


      1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
      2%YAML 1.2
      3---
      4$id: http://devicetree.org/schemas/clock/samsung,exynos7885-clock.yaml#
      5$schema: http://devicetree.org/meta-schemas/core.yaml#
      6
      7title: Samsung Exynos7885 SoC clock controller
      8
      9maintainers:
     10  - Dávid Virág <virag.david003@gmail.com>
     11  - Chanwoo Choi <cw00.choi@samsung.com>
     12  - Krzysztof Kozlowski <krzk@kernel.org>
     13  - Sylwester Nawrocki <s.nawrocki@samsung.com>
     14  - Tomasz Figa <tomasz.figa@gmail.com>
     15
     16description: |
     17  Exynos7885 clock controller is comprised of several CMU units, generating
     18  clocks for different domains. Those CMU units are modeled as separate device
     19  tree nodes, and might depend on each other. The root clock in that root tree
     20  is an external clock: OSCCLK (26 MHz). This external clock must be defined
     21  as a fixed-rate clock in dts.
     22
     23  CMU_TOP is a top-level CMU, where all base clocks are prepared using PLLs and
     24  dividers; all other leaf clocks (other CMUs) are usually derived from CMU_TOP.
     25
     26  Each clock is assigned an identifier and client nodes can use this identifier
     27  to specify the clock which they consume. All clocks available for usage
     28  in clock consumer nodes are defined as preprocessor macros in
     29  'dt-bindings/clock/exynos7885.h' header.
     30
     31properties:
     32  compatible:
     33    enum:
     34      - samsung,exynos7885-cmu-top
     35      - samsung,exynos7885-cmu-core
     36      - samsung,exynos7885-cmu-peri
     37
     38  clocks:
     39    minItems: 1
     40    maxItems: 10
     41
     42  clock-names:
     43    minItems: 1
     44    maxItems: 10
     45
     46  "#clock-cells":
     47    const: 1
     48
     49  reg:
     50    maxItems: 1
     51
     52allOf:
     53  - if:
     54      properties:
     55        compatible:
     56          contains:
     57            const: samsung,exynos7885-cmu-top
     58
     59    then:
     60      properties:
     61        clocks:
     62          items:
     63            - description: External reference clock (26 MHz)
     64
     65        clock-names:
     66          items:
     67            - const: oscclk
     68
     69  - if:
     70      properties:
     71        compatible:
     72          contains:
     73            const: samsung,exynos7885-cmu-core
     74
     75    then:
     76      properties:
     77        clocks:
     78          items:
     79            - description: External reference clock (26 MHz)
     80            - description: CMU_CORE bus clock (from CMU_TOP)
     81            - description: CCI clock (from CMU_TOP)
     82            - description: G3D clock (from CMU_TOP)
     83
     84        clock-names:
     85          items:
     86            - const: oscclk
     87            - const: dout_core_bus
     88            - const: dout_core_cci
     89            - const: dout_core_g3d
     90
     91  - if:
     92      properties:
     93        compatible:
     94          contains:
     95            const: samsung,exynos7885-cmu-peri
     96
     97    then:
     98      properties:
     99        clocks:
    100          items:
    101            - description: External reference clock (26 MHz)
    102            - description: CMU_PERI bus clock (from CMU_TOP)
    103            - description: SPI0 clock (from CMU_TOP)
    104            - description: SPI1 clock (from CMU_TOP)
    105            - description: UART0 clock (from CMU_TOP)
    106            - description: UART1 clock (from CMU_TOP)
    107            - description: UART2 clock (from CMU_TOP)
    108            - description: USI0 clock (from CMU_TOP)
    109            - description: USI1 clock (from CMU_TOP)
    110            - description: USI2 clock (from CMU_TOP)
    111
    112        clock-names:
    113          items:
    114            - const: oscclk
    115            - const: dout_peri_bus
    116            - const: dout_peri_spi0
    117            - const: dout_peri_spi1
    118            - const: dout_peri_uart0
    119            - const: dout_peri_uart1
    120            - const: dout_peri_uart2
    121            - const: dout_peri_usi0
    122            - const: dout_peri_usi1
    123            - const: dout_peri_usi2
    124
    125required:
    126  - compatible
    127  - "#clock-cells"
    128  - clocks
    129  - clock-names
    130  - reg
    131
    132additionalProperties: false
    133
    134examples:
    135  # Clock controller node for CMU_PERI
    136  - |
    137    #include <dt-bindings/clock/exynos7885.h>
    138
    139    cmu_peri: clock-controller@10010000 {
    140        compatible = "samsung,exynos7885-cmu-peri";
    141        reg = <0x10010000 0x8000>;
    142        #clock-cells = <1>;
    143
    144        clocks = <&oscclk>,
    145                 <&cmu_top CLK_DOUT_PERI_BUS>,
    146                 <&cmu_top CLK_DOUT_PERI_SPI0>,
    147                 <&cmu_top CLK_DOUT_PERI_SPI1>,
    148                 <&cmu_top CLK_DOUT_PERI_UART0>,
    149                 <&cmu_top CLK_DOUT_PERI_UART1>,
    150                 <&cmu_top CLK_DOUT_PERI_UART2>,
    151                 <&cmu_top CLK_DOUT_PERI_USI0>,
    152                 <&cmu_top CLK_DOUT_PERI_USI1>,
    153                 <&cmu_top CLK_DOUT_PERI_USI2>;
    154        clock-names = "oscclk",
    155                      "dout_peri_bus",
    156                      "dout_peri_spi0",
    157                      "dout_peri_spi1",
    158                      "dout_peri_uart0",
    159                      "dout_peri_uart1",
    160                      "dout_peri_uart2",
    161                      "dout_peri_usi0",
    162                      "dout_peri_usi1",
    163                      "dout_peri_usi2";
    164    };
    165
    166...