| # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause |
| %YAML 1.2 |
| --- |
| $id: http://devicetree.org/schemas/dma/fsl,imx-sdma.yaml# |
| $schema: http://devicetree.org/meta-schemas/core.yaml# |
| |
| title: Freescale Smart Direct Memory Access (SDMA) Controller for i.MX |
| |
| maintainers: |
| - Joy Zou <joy.zou@nxp.com> |
| |
| allOf: |
| - $ref: dma-controller.yaml# |
| |
| properties: |
| compatible: |
| oneOf: |
| - items: |
| - enum: |
| - fsl,imx50-sdma |
| - fsl,imx51-sdma |
| - fsl,imx53-sdma |
| - fsl,imx6q-sdma |
| - fsl,imx7d-sdma |
| - const: fsl,imx35-sdma |
| - items: |
| - enum: |
| - fsl,imx6sx-sdma |
| - fsl,imx6sl-sdma |
| - const: fsl,imx6q-sdma |
| - items: |
| - const: fsl,imx6ul-sdma |
| - const: fsl,imx6q-sdma |
| - const: fsl,imx35-sdma |
| - items: |
| - const: fsl,imx6sll-sdma |
| - const: fsl,imx6ul-sdma |
| - items: |
| - const: fsl,imx8mq-sdma |
| - const: fsl,imx7d-sdma |
| - items: |
| - enum: |
| - fsl,imx8mp-sdma |
| - fsl,imx8mn-sdma |
| - fsl,imx8mm-sdma |
| - const: fsl,imx8mq-sdma |
| - items: |
| - enum: |
| - fsl,imx25-sdma |
| - fsl,imx31-sdma |
| - fsl,imx35-sdma |
| reg: |
| maxItems: 1 |
| |
| interrupts: |
| maxItems: 1 |
| |
| fsl,sdma-ram-script-name: |
| $ref: /schemas/types.yaml#/definitions/string |
| description: Should contain the full path of SDMA RAM scripts firmware. |
| |
| "#dma-cells": |
| const: 3 |
| description: | |
| The first cell: request/event ID |
| |
| The second cell: peripheral types ID |
| enum: |
| - MCU domain SSI: 0 |
| - Shared SSI: 1 |
| - MMC: 2 |
| - SDHC: 3 |
| - MCU domain UART: 4 |
| - Shared UART: 5 |
| - FIRI: 6 |
| - MCU domain CSPI: 7 |
| - Shared CSPI: 8 |
| - SIM: 9 |
| - ATA: 10 |
| - CCM: 11 |
| - External peripheral: 12 |
| - Memory Stick Host Controller: 13 |
| - Shared Memory Stick Host Controller: 14 |
| - DSP: 15 |
| - Memory: 16 |
| - FIFO type Memory: 17 |
| - SPDIF: 18 |
| - IPU Memory: 19 |
| - ASRC: 20 |
| - ESAI: 21 |
| - SSI Dual FIFO: 22 |
| description: needs firmware more than ver 2 |
| - Shared ASRC: 23 |
| - SAI: 24 |
| - HDMI Audio: 25 |
| |
| The third cell: transfer priority ID |
| enum: |
| - High: 0 |
| - Medium: 1 |
| - Low: 2 |
| |
| gpr: |
| $ref: /schemas/types.yaml#/definitions/phandle |
| description: The phandle to the General Purpose Register (GPR) node |
| |
| fsl,sdma-event-remap: |
| $ref: /schemas/types.yaml#/definitions/uint32-matrix |
| maxItems: 2 |
| items: |
| items: |
| - description: GPR register offset |
| - description: GPR register shift |
| - description: GPR register value |
| description: | |
| Register bits of sdma event remap, the format is <reg shift val>. |
| The order is <RX>, <TX>. |
| |
| clocks: |
| maxItems: 2 |
| |
| clock-names: |
| items: |
| - const: ipg |
| - const: ahb |
| |
| iram: |
| $ref: /schemas/types.yaml#/definitions/phandle |
| description: The phandle to the On-chip RAM (OCRAM) node. |
| |
| required: |
| - compatible |
| - reg |
| - interrupts |
| - fsl,sdma-ram-script-name |
| |
| additionalProperties: false |
| |
| examples: |
| - | |
| sdma: dma-controller@83fb0000 { |
| compatible = "fsl,imx51-sdma", "fsl,imx35-sdma"; |
| reg = <0x83fb0000 0x4000>; |
| interrupts = <6>; |
| #dma-cells = <3>; |
| fsl,sdma-ram-script-name = "sdma-imx51.bin"; |
| }; |
| |
| ... |
