projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 7db2f2df DB |
1 | # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) |
| 2 | %YAML 1.2 | |
| 3 | --- | |
| 4 | $id: http://devicetree.org/schemas/dsp/fsl,dsp.yaml# | |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# | |
| 6 | ||
| 7 | title: NXP i.MX8 DSP core | |
| 8 | ||
| 9 | maintainers: | |
| 10 | - Daniel Baluta <daniel.baluta@nxp.com> | |
| 11 | ||
| 12 | description: | | |
| 13 | Some boards from i.MX8 family contain a DSP core used for | |
| 14 | advanced pre- and post- audio processing. | |
| 15 | ||
| 16 | properties: | |
| 17 | compatible: | |
| 18 | enum: | |
| 19 | - fsl,imx8qxp-dsp | |
| 20 | ||
| 21 | reg: | |
| 22 | description: Should contain register location and length | |
| 23 | ||
| 24 | clocks: | |
| 25 | items: | |
| 26 | - description: ipg clock | |
| 27 | - description: ocram clock | |
| 28 | - description: core clock | |
| 29 | ||
| 30 | clock-names: | |
| 31 | items: | |
| 32 | - const: ipg | |
| 33 | - const: ocram | |
| 34 | - const: core | |
| 35 | ||
| 36 | power-domains: | |
| 37 | description: | |
| 38 | List of phandle and PM domain specifier as documented in | |
| 39 | Documentation/devicetree/bindings/power/power_domain.txt | |
| 40 | maxItems: 4 | |
| 41 | ||
| 42 | mboxes: | |
| 43 | description: | |
| 44 | List of <&phandle type channel> - 2 channels for TXDB, 2 channels for RXDB | |
| 45 | (see mailbox/fsl,mu.txt) | |
| 46 | maxItems: 4 | |
| 47 | ||
| 48 | mbox-names: | |
| 49 | items: | |
| 50 | - const: txdb0 | |
| 51 | - const: txdb1 | |
| 52 | - const: rxdb0 | |
| 53 | - const: rxdb1 | |
| 54 | ||
| 55 | memory-region: | |
| 56 | description: | |
| 57 | phandle to a node describing reserved memory (System RAM memory) | |
| 58 | used by DSP (see bindings/reserved-memory/reserved-memory.txt) | |
| 59 | maxItems: 1 | |
| 60 | ||
| 61 | required: | |
| 62 | - compatible | |
| 63 | - reg | |
| 64 | - clocks | |
| 65 | - clock-names | |
| 66 | - power-domains | |
| 67 | - mboxes | |
| 68 | - mbox-names | |
| 69 | - memory-region | |
| 70 | ||
| 71 | examples: | |
| 72 | - | | |
| 73 | #include <dt-bindings/firmware/imx/rsrc.h> | |
| 74 | #include <dt-bindings/clock/imx8-clock.h> | |
| 75 | dsp@596e8000 { | |
| 76 | compatible = "fsl,imx8qxp-dsp"; | |
| 77 | reg = <0x596e8000 0x88000>; | |
| 78 | clocks = <&adma_lpcg IMX_ADMA_LPCG_DSP_IPG_CLK>, | |
| 79 | <&adma_lpcg IMX_ADMA_LPCG_OCRAM_IPG_CLK>, | |
| 80 | <&adma_lpcg IMX_ADMA_LPCG_DSP_CORE_CLK>; | |
| 81 | clock-names = "ipg", "ocram", "core"; | |
| 82 | power-domains = <&pd IMX_SC_R_MU_13A>, | |
| 83 | <&pd IMX_SC_R_MU_13B>, | |
| 84 | <&pd IMX_SC_R_DSP>, | |
| 85 | <&pd IMX_SC_R_DSP_RAM>; | |
| 86 | mbox-names = "txdb0", "txdb1", "rxdb0", "rxdb1"; | |
| 87 | mboxes = <&lsio_mu13 2 0>, <&lsio_mu13 2 1>, <&lsio_mu13 3 0>, <&lsio_mu13 3 1>; | |
| e2973352 | 88 | memory-region = <&dsp_reserved>; |
| 7db2f2df | 89 | }; |