| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 1 | * Altera Arria10 Development Kit System Resource Chip |
| 2 | |
| 3 | Required parent device properties: |
| 4 | - compatible : "altr,a10sr" |
| 5 | - spi-max-frequency : Maximum SPI frequency. |
| 6 | - reg : The SPI Chip Select address for the Arria10 |
| 7 | System Resource chip |
| 8 | - interrupts : The interrupt line the device is connected to. |
| 9 | - interrupt-controller : Marks the device node as an interrupt controller. |
| 10 | - #interrupt-cells : The number of cells to describe an IRQ, should be 2. |
| 11 | The first cell is the IRQ number. |
| 12 | The second cell is the flags, encoded as trigger |
| 13 | masks from ../interrupt-controller/interrupts.txt. |
| 14 | |
| 15 | The A10SR consists of these sub-devices: |
| 16 | |
| 17 | Device Description |
| 18 | ------ ---------- |
| 19 | a10sr_gpio GPIO Controller |
| 20 | a10sr_rst Reset Controller |
| 21 | |
| 22 | Arria10 GPIO |
| 23 | Required Properties: |
| 24 | - compatible : Should be "altr,a10sr-gpio" |
| 25 | - gpio-controller : Marks the device node as a GPIO Controller. |
| 26 | - #gpio-cells : Should be two. The first cell is the pin number and |
| 27 | the second cell is used to specify flags. |
| 28 | See ../gpio/gpio.txt for more information. |
| 29 | |
| 30 | Arria10 Peripheral PHY Reset |
| 31 | Required Properties: |
| 32 | - compatible : Should be "altr,a10sr-reset" |
| 33 | - #reset-cells : Should be one. |
| 34 | |
| 35 | Example: |
| 36 | |
| 37 | resource-manager@0 { |
| 38 | compatible = "altr,a10sr"; |
| 39 | reg = <0>; |
| 40 | spi-max-frequency = <100000>; |
| 41 | interrupt-parent = <&portb>; |
| 42 | interrupts = <5 IRQ_TYPE_LEVEL_LOW>; |
| 43 | interrupt-controller; |
| 44 | #interrupt-cells = <2>; |
| 45 | |
| 46 | a10sr_gpio: gpio-controller { |
| 47 | compatible = "altr,a10sr-gpio"; |
| 48 | gpio-controller; |
| 49 | #gpio-cells = <2>; |
| 50 | }; |
| 51 | |
| 52 | a10sr_rst: reset-controller { |
| 53 | compatible = "altr,a10sr-reset"; |
| 54 | #reset-cells = <1>; |
| 55 | }; |
| 56 | }; |