| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 1 | # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) |
| 2 | %YAML 1.2 |
| 3 | --- |
| 4 | $id: http://devicetree.org/schemas/mailbox/st,sti-mailbox.yaml# |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: STMicroelectronics Mailbox Driver for STi platform |
| 8 | |
| 9 | description: |
| 10 | Each ST Mailbox IP currently consists of 4 instances of 32 channels. |
| 11 | Messages are passed between Application and Remote processors using |
| 12 | shared memory. |
| 13 | |
| 14 | maintainers: |
| 15 | - Patrice Chotard <patrice.chotard@foss.st.com> |
| 16 | |
| 17 | properties: |
| 18 | compatible: |
| 19 | const: st,stih407-mailbox |
| 20 | |
| 21 | reg: |
| 22 | maxItems: 1 |
| 23 | |
| 24 | mbox-name: |
| 25 | $ref: /schemas/types.yaml#/definitions/string |
| 26 | description: name of the mailbox IP |
| 27 | |
| 28 | interrupts: |
| 29 | description: the irq line for the RX mailbox |
| 30 | maxItems: 1 |
| 31 | |
| 32 | "#mbox-cells": |
| 33 | const: 2 |
| 34 | |
| 35 | required: |
| 36 | - compatible |
| 37 | - reg |
| 38 | - "#mbox-cells" |
| 39 | |
| 40 | additionalProperties: false |
| 41 | |
| 42 | examples: |
| 43 | - | |
| 44 | #include <dt-bindings/interrupt-controller/arm-gic.h> |
| 45 | mailbox0: mailbox@8f00000 { |
| 46 | compatible = "st,stih407-mailbox"; |
| 47 | reg = <0x8f00000 0x1000>; |
| 48 | interrupts = <GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>; |
| 49 | #mbox-cells = <2>; |
| 50 | mbox-name = "a9"; |
| 51 | }; |
| 52 | |
| 53 | ... |