| 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/dsp/mediatek,mt8195-dsp.yaml# |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: Mediatek mt8195 DSP core |
| 8 | |
| 9 | maintainers: |
| 10 | - YC Hung <yc.hung@mediatek.com> |
| 11 | |
| 12 | description: | |
| 13 | Some boards from mt8195 contain a DSP core used for |
| 14 | advanced pre- and post- audio processing. |
| 15 | |
| 16 | properties: |
| 17 | compatible: |
| 18 | const: mediatek,mt8195-dsp |
| 19 | |
| 20 | reg: |
| 21 | items: |
| 22 | - description: Address and size of the DSP Cfg registers |
| 23 | - description: Address and size of the DSP SRAM |
| 24 | |
| 25 | reg-names: |
| 26 | items: |
| 27 | - const: cfg |
| 28 | - const: sram |
| 29 | |
| 30 | clocks: |
| 31 | items: |
| 32 | - description: mux for audio dsp clock |
| 33 | - description: 26M clock |
| 34 | - description: mux for audio dsp local bus |
| 35 | - description: default audio dsp local bus clock source |
| 36 | - description: clock gate for audio dsp clock |
| 37 | - description: mux for audio dsp access external bus |
| 38 | |
| 39 | clock-names: |
| 40 | items: |
| 41 | - const: adsp_sel |
| 42 | - const: clk26m_ck |
| 43 | - const: audio_local_bus |
| 44 | - const: mainpll_d7_d2 |
| 45 | - const: scp_adsp_audiodsp |
| 46 | - const: audio_h |
| 47 | |
| 48 | power-domains: |
| 49 | maxItems: 1 |
| 50 | |
| 51 | mboxes: |
| 52 | items: |
| 53 | - description: mailbox for receiving audio DSP requests. |
| 54 | - description: mailbox for transmitting requests to audio DSP. |
| 55 | |
| 56 | mbox-names: |
| 57 | items: |
| 58 | - const: rx |
| 59 | - const: tx |
| 60 | |
| 61 | memory-region: |
| 62 | items: |
| 63 | - description: dma buffer between host and DSP. |
| 64 | - description: DSP system memory. |
| 65 | |
| 66 | required: |
| 67 | - compatible |
| 68 | - reg |
| 69 | - reg-names |
| 70 | - clocks |
| 71 | - clock-names |
| 72 | - memory-region |
| 73 | - power-domains |
| 74 | - mbox-names |
| 75 | - mboxes |
| 76 | |
| 77 | additionalProperties: false |
| 78 | |
| 79 | examples: |
| 80 | - | |
| 81 | #include <dt-bindings/interrupt-controller/arm-gic.h> |
| 82 | #include <dt-bindings/interrupt-controller/irq.h> |
| 83 | dsp@10803000 { |
| 84 | compatible = "mediatek,mt8195-dsp"; |
| 85 | reg = <0x10803000 0x1000>, |
| 86 | <0x10840000 0x40000>; |
| 87 | reg-names = "cfg", "sram"; |
| 88 | clocks = <&topckgen 10>, //CLK_TOP_ADSP |
| 89 | <&clk26m>, |
| 90 | <&topckgen 107>, //CLK_TOP_AUDIO_LOCAL_BUS |
| 91 | <&topckgen 136>, //CLK_TOP_MAINPLL_D7_D2 |
| 92 | <&scp_adsp 0>, //CLK_SCP_ADSP_AUDIODSP |
| 93 | <&topckgen 34>; //CLK_TOP_AUDIO_H |
| 94 | clock-names = "adsp_sel", |
| 95 | "clk26m_ck", |
| 96 | "audio_local_bus", |
| 97 | "mainpll_d7_d2", |
| 98 | "scp_adsp_audiodsp", |
| 99 | "audio_h"; |
| 100 | memory-region = <&adsp_dma_mem_reserved>, |
| 101 | <&adsp_mem_reserved>; |
| 102 | power-domains = <&spm 6>; //MT8195_POWER_DOMAIN_ADSP |
| 103 | mbox-names = "rx", "tx"; |
| 104 | mboxes = <&adsp_mailbox0>, <&adsp_mailbox1>; |
| 105 | }; |