Kernel-4.18.0-80.el8_altera-a10sr

• Altera Arria10 Development Kit System Resource Chip

Required parent device properties:

• compatible : “altr,a10sr”
• spi-max-frequency : Maximum SPI frequency.
• reg : The SPI Chip Select address for the Arria10

          System Resource chip
  

• interrupt-parent : The parent interrupt controller.
• interrupts : The interrupt line the device is connected to.
• interrupt-controller : Marks the device node as an interrupt controller.
• #interrupt-cells : The number of cells to describe an IRQ, should be 2.

            The first cell is the IRQ number.
            The second cell is the flags, encoded as trigger
            masks from ../interrupt-controller/interrupts.txt.
  

The A10SR consists of these sub-devices:

Device Description

---

a10sr_gpio GPIO Controller
a10sr_rst Reset Controller

Arria10 GPIO
Required Properties:

• compatible : Should be “altr,a10sr-gpio”
• gpio-controller : Marks the device node as a GPIO Controller.
• #gpio-cells : Should be two. The first cell is the pin number and

                  the second cell is used to specify flags.
                  See ../gpio/gpio.txt for more information.
  

Arria10 Peripheral PHY Reset
Required Properties:

• compatible : Should be “altr,a10sr-reset”
• #reset-cells : Should be one.

Example:

    resource-manager@0 {
    compatible = "altr,a10sr";
    reg = <0>;
    spi-max-frequency = <100000>;
    interrupt-parent = <&portb>;
    interrupts = <5 IRQ_TYPE_LEVEL_LOW>;
    interrupt-controller;
    #interrupt-cells = <2>;

    a10sr_gpio: gpio-controller {
        compatible = "altr,a10sr-gpio";
        gpio-controller;
        #gpio-cells = <2>;
    };

    a10sr_rst: reset-controller {
        compatible = "altr,a10sr-reset";
        #reset-cells = <1>;
    };
};