| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 1 | # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) |
| 2 | %YAML 1.2 |
| 3 | --- |
| 4 | $id: http://devicetree.org/schemas/interrupt-controller/st,stih407-irq-syscfg.yaml# |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: STMicroelectronics STi System Configuration Controlled IRQs |
| 8 | |
| 9 | maintainers: |
| 10 | - Patrice Chotard <patrice.chotard@foss.st.com> |
| 11 | |
| 12 | description: |
| 13 | On STi based systems; External, CTI (Core Sight), PMU (Performance |
| 14 | Management), and PL310 L2 Cache IRQs are controlled using System |
| 15 | Configuration registers. This device is used to unmask them prior to use. |
| 16 | |
| 17 | properties: |
| 18 | compatible: |
| 19 | const: st,stih407-irq-syscfg |
| 20 | |
| 21 | st,syscfg: |
| 22 | description: Phandle to Cortex-A9 IRQ system config registers |
| 23 | $ref: /schemas/types.yaml#/definitions/phandle |
| 24 | |
| 25 | st,irq-device: |
| 26 | description: Array of IRQs to enable. |
| 27 | $ref: /schemas/types.yaml#/definitions/uint32-array |
| 28 | items: |
| 29 | - description: Enable the IRQ of the channel one. |
| 30 | - description: Enable the IRQ of the channel two. |
| 31 | |
| 32 | st,fiq-device: |
| 33 | description: Array of FIQs to enable. |
| 34 | $ref: /schemas/types.yaml#/definitions/uint32-array |
| 35 | items: |
| 36 | - description: Enable the IRQ of the channel one. |
| 37 | - description: Enable the IRQ of the channel two. |
| 38 | |
| 39 | st,invert-ext: |
| 40 | description: External IRQs can be inverted at will. This property inverts |
| 41 | these three IRQs using bitwise logic, each one being encoded respectively |
| 42 | on the first, second and fourth bit. |
| 43 | $ref: /schemas/types.yaml#/definitions/uint32 |
| 44 | enum: [ 1, 2, 3, 4, 5, 6 ] |
| 45 | |
| 46 | required: |
| 47 | - compatible |
| 48 | - st,syscfg |
| 49 | - st,irq-device |
| 50 | - st,fiq-device |
| 51 | |
| 52 | additionalProperties: false |
| 53 | |
| 54 | examples: |
| 55 | - | |
| 56 | #include <dt-bindings/interrupt-controller/irq-st.h> |
| 57 | irq-syscfg { |
| Tom Rini | 93743d2 | 2024-04-01 09:08:13 -0400 | [diff] [blame] | 58 | compatible = "st,stih407-irq-syscfg"; |
| 59 | st,syscfg = <&syscfg_cpu>; |
| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 60 | st,irq-device = <ST_IRQ_SYSCFG_PMU_0>, |
| 61 | <ST_IRQ_SYSCFG_PMU_1>; |
| 62 | st,fiq-device = <ST_IRQ_SYSCFG_DISABLED>, |
| 63 | <ST_IRQ_SYSCFG_DISABLED>; |
| 64 | }; |
| 65 | ... |