Unverified Commit 9d28fe1b authored by Arnd Bergmann's avatar Arnd Bergmann
Browse files

Merge tag 'tesla-dt64-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into arm/dt 

Tesla FSD ARM64 changes for v5.18

Add Tesla FSD SoC ARM64 platform: bindings, DTSI+DTS, maintainer's entry
and defconfig change.  This brings and enables this new platform.

This includes clock controller bindings (header files with clock IDs)
which are shared also with Tesla FSD SoC clock controller pull request.

* tag 'tesla-dt64-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
  arm64: dts: fsd: Add SPI device nodes
  arm64: defconfig: Enable Tesla FSD SoC
  arm64: dts: fsd: Add initial pinctrl support
  arm64: dts: fsd: Add initial device tree support
  dt-bindings: clock: Document FSD CMU bindings
  dt-bindings: clock: Add bindings definitions for FSD CMU blocks
  dt-bindings: arm: add Tesla FSD ARM SoC
  dt-bindings: add vendor prefix for Tesla

Link: https://lore.kernel.org/r/20220204154112.133723-2-krzysztof.kozlowski@canonical.com


Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
parents dfd42fac bd1e3696

Documentation/devicetree/bindings/arm/tesla.yaml

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# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause

%YAML 1.2

---

$id: http://devicetree.org/schemas/arm/tesla.yaml#

$schema: http://devicetree.org/meta-schemas/core.yaml#



title: Tesla Full Self Driving(FSD) platforms device tree bindings



maintainers:

  - Alim Akhtar <alim.akhtar@samsung.com>

  - linux-fsd@tesla.com



properties:

  $nodename:

    const: '/'

  compatible:

    oneOf:



      - description: FSD SoC board

        items:

          - enum:

              - tesla,fsd-evb   # Tesla FSD Evaluation

          - const: tesla,fsd



additionalProperties: true



...

Documentation/devicetree/bindings/clock/tesla,fsd-clock.yaml

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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)

%YAML 1.2

---

$id: http://devicetree.org/schemas/clock/tesla,fsd-clock.yaml#

$schema: http://devicetree.org/meta-schemas/core.yaml#



title: Tesla FSD (Full Self-Driving) SoC clock controller



maintainers:

  - Alim Akhtar <alim.akhtar@samsung.com>

  - linux-fsd@tesla.com



description: |

  FSD clock controller consist of several clock management unit

  (CMU), which generates clocks for various inteernal SoC blocks.

  The root clock comes from external OSC clock (24 MHz).



  All available clocks are defined as preprocessor macros in

  'dt-bindings/clock/fsd-clk.h' header.



properties:

  compatible:

    enum:

      - tesla,fsd-clock-cmu

      - tesla,fsd-clock-imem

      - tesla,fsd-clock-peric

      - tesla,fsd-clock-fsys0

      - tesla,fsd-clock-fsys1

      - tesla,fsd-clock-mfc

      - tesla,fsd-clock-cam_csi



  clocks:

    minItems: 1

    maxItems: 6



  clock-names:

    minItems: 1

    maxItems: 6



  "#clock-cells":

    const: 1



  reg:

    maxItems: 1



allOf:

  - if:

      properties:

        compatible:

          contains:

            const: tesla,fsd-clock-cmu

    then:

      properties:

        clocks:

          items:

            - description: External reference clock (24 MHz)

        clock-names:

          items:

            - const: fin_pll



  - if:

      properties:

        compatible:

          contains:

            const: tesla,fsd-clock-imem

    then:

      properties:

        clocks:

          items:

            - description: External reference clock (24 MHz)

            - description: IMEM TCU clock (from CMU_CMU)

            - description: IMEM bus clock (from CMU_CMU)

            - description: IMEM DMA clock (from CMU_CMU)

        clock-names:

          items:

            - const: fin_pll

            - const: dout_cmu_imem_tcuclk

            - const: dout_cmu_imem_aclk

            - const: dout_cmu_imem_dmaclk



  - if:

      properties:

        compatible:

          contains:

            const: tesla,fsd-clock-peric

    then:

      properties:

        clocks:

          items:

            - description: External reference clock (24 MHz)

            - description: Shared0 PLL div4 clock (from CMU_CMU)

            - description: PERIC shared1 div36 clock (from CMU_CMU)

            - description: PERIC shared0 div3 TBU clock (from CMU_CMU)

            - description: PERIC shared0 div20 clock (from CMU_CMU)

            - description: PERIC shared1 div4 DMAclock (from CMU_CMU)

        clock-names:

          items:

            - const: fin_pll

            - const: dout_cmu_pll_shared0_div4

            - const: dout_cmu_peric_shared1div36

            - const: dout_cmu_peric_shared0div3_tbuclk

            - const: dout_cmu_peric_shared0div20

            - const: dout_cmu_peric_shared1div4_dmaclk



  - if:

      properties:

        compatible:

          contains:

            const: tesla,fsd-clock-fsys0

    then:

      properties:

        clocks:

          items:

            - description: External reference clock (24 MHz)

            - description: Shared0 PLL div6 clock (from CMU_CMU)

            - description: FSYS0 shared1 div4 clock (from CMU_CMU)

            - description: FSYS0 shared0 div4 clock (from CMU_CMU)

        clock-names:

          items:

            - const: fin_pll

            - const: dout_cmu_pll_shared0_div6

            - const: dout_cmu_fsys0_shared1div4

            - const: dout_cmu_fsys0_shared0div4



  - if:

      properties:

        compatible:

          contains:

            const: tesla,fsd-clock-fsys1

    then:

      properties:

        clocks:

          items:

            - description: External reference clock (24 MHz)

            - description: FSYS1 shared0 div8 clock (from CMU_CMU)

            - description: FSYS1 shared0 div4 clock (from CMU_CMU)

        clock-names:

          items:

            - const: fin_pll

            - const: dout_cmu_fsys1_shared0div8

            - const: dout_cmu_fsys1_shared0div4



  - if:

      properties:

        compatible:

          contains:

            const: tesla,fsd-clock-mfc

    then:

      properties:

        clocks:

          items:

            - description: External reference clock (24 MHz)

        clock-names:

          items:

            - const: fin_pll



  - if:

      properties:

        compatible:

          contains:

            const: tesla,fsd-clock-cam_csi

    then:

      properties:

        clocks:

          items:

            - description: External reference clock (24 MHz)

        clock-names:

          items:

            - const: fin_pll



required:

  - compatible

  - "#clock-cells"

  - clocks

  - clock-names

  - reg



additionalProperties: false



examples:

  # Clock controller node for CMU_FSYS1

  - |

    #include <dt-bindings/clock/fsd-clk.h>



    clock_fsys1: clock-controller@16810000 {

          compatible = "tesla,fsd-clock-fsys1";

          reg = <0x16810000 0x3000>;

          #clock-cells = <1>;



          clocks = <&fin_pll>,

                   <&clock_cmu DOUT_CMU_FSYS1_SHARED0DIV8>,

                   <&clock_cmu DOUT_CMU_FSYS1_SHARED0DIV4>;

          clock-names = "fin_pll",

                        "dout_cmu_fsys1_shared0div8",

                        "dout_cmu_fsys1_shared0div4";

    };



...

Documentation/devicetree/bindings/vendor-prefixes.yaml

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@@ -1205,6 +1205,8 @@ patternProperties: 
    description: Shenzhen Techstar Electronics Co., Ltd.

  "^terasic,.*":

    description: Terasic Inc.

  "^tesla,.*":

    description: Tesla, Inc.

  "^tfc,.*":

    description: Three Five Corp

  "^thead,.*":

MAINTAINERS

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@@ -2754,6 +2754,14 @@ S: Maintained 
F:	Documentation/devicetree/bindings/media/tegra-cec.txt

F:	drivers/media/cec/platform/tegra/









ARM/TESLA FSD SoC SUPPORT









M:	Alim Akhtar <alim.akhtar@samsung.com>









M:	linux-fsd@tesla.com









L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)









L:	linux-samsung-soc@vger.kernel.org









S:	Maintained









F:	arch/arm64/boot/dts/tesla*

















ARM/TETON BGA MACHINE SUPPORT









M:	"Mark F. Brown" <mark.brown314@gmail.com>









L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
































arch/arm64/Kconfig.platforms



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−0






























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Diff line number
Diff line







@@ -268,6 +268,12 @@ config ARCH_TEGRA







	help









	  This enables support for the NVIDIA Tegra SoC family.



















config ARCH_TESLA_FSD









	bool "ARMv8 based Tesla platform"









	depends on ARCH_EXYNOS









	help









	  Support for ARMv8 based Tesla platforms.



















config ARCH_SPRD









	bool "Spreadtrum SoC platform"









	help