projects / people / ms / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| f50ffbc5 NA |
1 | # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) |
| 2 | # Copyright 2019 BayLibre, SAS | |
| 3 | %YAML 1.2 | |
| 4 | --- | |
| 5 | $id: "http://devicetree.org/schemas/arm/amlogic/amlogic,meson-gx-ao-secure.yaml#" | |
| 6 | $schema: "http://devicetree.org/meta-schemas/core.yaml#" | |
| 7 | ||
| 8 | title: Amlogic Meson Firmware registers Interface | |
| 9 | ||
| 10 | maintainers: | |
| c6a43fb3 | 11 | - Neil Armstrong <neil.armstrong@linaro.org> |
| f50ffbc5 NA |
12 | |
| 13 | description: | | |
| 14 | The Meson SoCs have a register bank with status and data shared with the | |
| 15 | secure firmware. | |
| 16 | ||
| 17 | # We need a select here so we don't match all nodes with 'syscon' | |
| 18 | select: | |
| 19 | properties: | |
| 20 | compatible: | |
| 21 | contains: | |
| 22 | const: amlogic,meson-gx-ao-secure | |
| 23 | required: | |
| 24 | - compatible | |
| 25 | ||
| 26 | properties: | |
| 27 | compatible: | |
| 9f60a65b | 28 | items: |
| f50ffbc5 NA |
29 | - const: amlogic,meson-gx-ao-secure |
| 30 | - const: syscon | |
| 31 | ||
| 32 | reg: | |
| 33 | maxItems: 1 | |
| 34 | ||
| 35 | amlogic,has-chip-id: | |
| 36 | description: | | |
| 37 | A firmware register encodes the SoC type, package and revision | |
| 38 | information on the Meson GX SoCs. If present, the interface gives | |
| 39 | the current SoC version. | |
| 40 | type: boolean | |
| 41 | ||
| 42 | required: | |
| 43 | - compatible | |
| 44 | - reg | |
| 45 | ||
| 7f464532 RH |
46 | additionalProperties: false |
| 47 | ||
| f50ffbc5 NA |
48 | examples: |
| 49 | - | | |
| 50 | ao-secure@140 { | |
| 51 | compatible = "amlogic,meson-gx-ao-secure", "syscon"; | |
| 52 | reg = <0x140 0x140>; | |
| 53 | amlogic,has-chip-id; | |
| 54 | }; |