Unverified Commit 26cbb4dd authored by Mark Brown's avatar Mark Brown
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Axiado AX3000 SoC SPI DB controller driver 

Merge series from Vladimir Moravcevic <vmoravcevic@axiado.com>:

This series introduces new SPI controller driver for Axiado AX3000 SoC
and its evaluation board.

The SPI controller provides:
- Full-duplex and half-duplex transfer support
- Configurable clock polarity and phase
- Interrupt-driven

Functionality has been verified using the `jedec,spi-nor` interface to
access onboard flash memory. This ensures compatibility with common NOR
flash devices used in boot and storage subsystem.

Further improvements, including performance tuning and extended hardware
feature support, will be submitted in follow-up patches.
parents a014c203 db4371d1

Documentation/devicetree/bindings/spi/axiado,ax3000-spi.yaml

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

%YAML 1.2

---

$id: http://devicetree.org/schemas/spi/axiado,ax3000-spi.yaml#

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



title: Axiado AX3000 SoC SPI controller



maintainers:

  - Vladimir Moravcevic <vmoravcevic@axiado.com>

  - Tzu-Hao Wei <twei@axiado.com>

  - Swark Yang <syang@axiado.com>

  - Prasad Bolisetty <pbolisetty@axiado.com>



allOf:

  - $ref: spi-controller.yaml#



properties:

  compatible:

    enum:

      - axiado,ax3000-spi



  reg:

    maxItems: 1



  interrupts:

    maxItems: 1



  clock-names:

    items:

      - const: ref

      - const: pclk



  clocks:

    maxItems: 2



  num-cs:

    description: |

      Number of chip selects used.

    $ref: /schemas/types.yaml#/definitions/uint32

    minimum: 1

    maximum: 4

    default: 4



required:

  - compatible

  - reg

  - interrupts

  - clock-names

  - clocks



unevaluatedProperties: false



examples:

  - |

   #include <dt-bindings/interrupt-controller/irq.h>

   #include <dt-bindings/interrupt-controller/arm-gic.h>



   soc {

      #address-cells = <2>;

      #size-cells = <2>;



      spi@80510000 {

         compatible = "axiado,ax3000-spi";

         reg = <0x00 0x80510000 0x00 0x1000>;

         clock-names = "ref", "pclk";

         clocks = <&spi_clk>, <&apb_pclk>;

         interrupt-parent = <&gic500>;

         interrupts = <GIC_SPI 115 IRQ_TYPE_LEVEL_HIGH>;

         num-cs = <4>;

      };

   };

...

MAINTAINERS

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@@ -4276,6 +4276,17 @@ W: https://ez.analog.com/linux-software-drivers 
F:	Documentation/devicetree/bindings/pwm/adi,axi-pwmgen.yaml

F:	drivers/pwm/pwm-axi-pwmgen.c









AXIADO SPI DB DRIVER









M:	Vladimir Moravcevic <vmoravcevic@axiado.com>









M:	Tzu-Hao Wei <twei@axiado.com>









M:	Swark Yang <syang@axiado.com>









M:	Prasad Bolisetty <pbolisetty@axiado.com>









L:	linux-spi@vger.kernel.org









S:	Maintained









F:	Documentation/devicetree/bindings/spi/axiado,ax3000-spi.yaml









F:	drivers/spi/spi-axiado.c









F:	drivers/spi/spi-axiado.h

















AYANEO PLATFORM EC DRIVER









M:	Antheas Kapenekakis <lkml@antheas.dev>









L:	platform-driver-x86@vger.kernel.org
































drivers/spi/Kconfig



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@@ -213,6 +213,16 @@ config SPI_AXI_SPI_ENGINE







	  It is part of the SPI Engine framework that is used in some Analog Devices









	  reference designs for FPGAs.



















config SPI_AXIADO









	tristate "Axiado DB-H SPI controller"









	depends on SPI_MEM









	help









	  Enable support for the SPI controller present on Axiado AX3000 SoCs.



















	  The implementation supports host-only mode and does not provide target









	  functionality. It is intended for use cases where the SoC acts as the SPI









	  host, communicating with peripheral devices such as flash memory.



















config SPI_BCM2835









	tristate "BCM2835 SPI controller"









	depends on GPIOLIB
































drivers/spi/Makefile



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@@ -33,6 +33,7 @@ obj-$(CONFIG_SPI_AT91_USART)		+= spi-at91-usart.o







obj-$(CONFIG_SPI_ATH79)			+= spi-ath79.o









obj-$(CONFIG_SPI_AU1550)		+= spi-au1550.o









obj-$(CONFIG_SPI_AXI_SPI_ENGINE)	+= spi-axi-spi-engine.o









obj-$(CONFIG_SPI_AXIADO)		+= spi-axiado.o









obj-$(CONFIG_SPI_BCM2835)		+= spi-bcm2835.o









obj-$(CONFIG_SPI_BCM2835AUX)		+= spi-bcm2835aux.o









obj-$(CONFIG_SPI_BCM63XX)		+= spi-bcm63xx.o
































drivers/spi/spi-axiado.c
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