| 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/soc/imx/fsl,imx93-src.yaml# |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: NXP i.MX93 System Reset Controller |
| 8 | |
| 9 | maintainers: |
| 10 | - Peng Fan <peng.fan@nxp.com> |
| 11 | |
| 12 | description: | |
| 13 | The System Reset Controller (SRC) is responsible for the generation of |
| 14 | all the system reset signals and boot argument latching. |
| 15 | |
| 16 | Its main functions are as follows, |
| 17 | - Deals with all global system reset sources from other modules, |
| 18 | and generates global system reset. |
| 19 | - Responsible for power gating of MIXs (Slices) and their memory |
| 20 | low power control. |
| 21 | |
| 22 | properties: |
| 23 | compatible: |
| 24 | items: |
| 25 | - const: fsl,imx93-src |
| 26 | - const: syscon |
| 27 | |
| 28 | reg: |
| 29 | maxItems: 1 |
| 30 | |
| 31 | ranges: true |
| 32 | |
| 33 | '#address-cells': |
| 34 | const: 1 |
| 35 | |
| 36 | '#size-cells': |
| 37 | const: 1 |
| 38 | |
| 39 | patternProperties: |
| 40 | "power-domain@[0-9a-f]+$": |
| 41 | type: object |
| 42 | additionalProperties: false |
| 43 | |
| 44 | properties: |
| 45 | compatible: |
| 46 | items: |
| 47 | - const: fsl,imx93-src-slice |
| 48 | |
| 49 | '#power-domain-cells': |
| 50 | const: 0 |
| 51 | |
| 52 | reg: |
| 53 | items: |
| 54 | - description: mix slice register region |
| 55 | - description: mem slice register region |
| 56 | |
| 57 | clocks: |
| 58 | description: | |
| 59 | A number of phandles to clocks that need to be enabled |
| 60 | during domain power-up sequencing to ensure reset |
| 61 | propagation into devices located inside this power domain. |
| 62 | minItems: 1 |
| 63 | maxItems: 5 |
| 64 | |
| 65 | required: |
| 66 | - compatible |
| 67 | - '#power-domain-cells' |
| 68 | - reg |
| 69 | |
| 70 | required: |
| 71 | - compatible |
| 72 | - reg |
| 73 | - ranges |
| 74 | - '#address-cells' |
| 75 | - '#size-cells' |
| 76 | |
| 77 | additionalProperties: false |
| 78 | |
| 79 | examples: |
| 80 | - | |
| 81 | #include <dt-bindings/clock/imx93-clock.h> |
| 82 | |
| 83 | system-controller@44460000 { |
| 84 | compatible = "fsl,imx93-src", "syscon"; |
| 85 | reg = <0x44460000 0x10000>; |
| 86 | #address-cells = <1>; |
| 87 | #size-cells = <1>; |
| 88 | ranges; |
| 89 | |
| 90 | mediamix: power-domain@0 { |
| 91 | compatible = "fsl,imx93-src-slice"; |
| 92 | reg = <0x44462400 0x400>, <0x44465800 0x400>; |
| 93 | #power-domain-cells = <0>; |
| 94 | clocks = <&clk IMX93_CLK_MEDIA_AXI>, |
| 95 | <&clk IMX93_CLK_MEDIA_APB>; |
| 96 | }; |
| 97 | }; |