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105 lines
2.7 KiB
105 lines
2.7 KiB
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) |
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%YAML 1.2 |
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--- |
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$id: http://devicetree.org/schemas/dsp/mediatek,mt8195-dsp.yaml# |
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$schema: http://devicetree.org/meta-schemas/core.yaml# |
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title: Mediatek mt8195 DSP core |
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maintainers: |
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- YC Hung <[email protected]> |
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description: | |
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Some boards from mt8195 contain a DSP core used for |
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advanced pre- and post- audio processing. |
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properties: |
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compatible: |
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const: mediatek,mt8195-dsp |
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reg: |
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items: |
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- description: Address and size of the DSP Cfg registers |
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- description: Address and size of the DSP SRAM |
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reg-names: |
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items: |
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- const: cfg |
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- const: sram |
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clocks: |
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items: |
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- description: mux for audio dsp clock |
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- description: 26M clock |
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- description: mux for audio dsp local bus |
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- description: default audio dsp local bus clock source |
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- description: clock gate for audio dsp clock |
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- description: mux for audio dsp access external bus |
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clock-names: |
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items: |
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- const: adsp_sel |
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- const: clk26m_ck |
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- const: audio_local_bus |
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- const: mainpll_d7_d2 |
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- const: scp_adsp_audiodsp |
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- const: audio_h |
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power-domains: |
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maxItems: 1 |
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mboxes: |
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items: |
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- description: mailbox for receiving audio DSP requests. |
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- description: mailbox for transmitting requests to audio DSP. |
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mbox-names: |
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items: |
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- const: rx |
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- const: tx |
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memory-region: |
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items: |
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- description: dma buffer between host and DSP. |
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- description: DSP system memory. |
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required: |
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- compatible |
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- reg |
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- reg-names |
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- clocks |
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- clock-names |
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- memory-region |
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- power-domains |
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- mbox-names |
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- mboxes |
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additionalProperties: false |
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examples: |
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- | |
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#include <dt-bindings/interrupt-controller/arm-gic.h> |
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#include <dt-bindings/interrupt-controller/irq.h> |
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dsp@10803000 { |
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compatible = "mediatek,mt8195-dsp"; |
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reg = <0x10803000 0x1000>, |
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<0x10840000 0x40000>; |
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reg-names = "cfg", "sram"; |
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clocks = <&topckgen 10>, //CLK_TOP_ADSP |
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<&clk26m>, |
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<&topckgen 107>, //CLK_TOP_AUDIO_LOCAL_BUS |
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<&topckgen 136>, //CLK_TOP_MAINPLL_D7_D2 |
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<&scp_adsp 0>, //CLK_SCP_ADSP_AUDIODSP |
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<&topckgen 34>; //CLK_TOP_AUDIO_H |
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clock-names = "adsp_sel", |
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"clk26m_ck", |
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"audio_local_bus", |
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"mainpll_d7_d2", |
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"scp_adsp_audiodsp", |
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"audio_h"; |
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memory-region = <&adsp_dma_mem_reserved>, |
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<&adsp_mem_reserved>; |
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power-domains = <&spm 6>; //MT8195_POWER_DOMAIN_ADSP |
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mbox-names = "rx", "tx"; |
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mboxes = <&adsp_mailbox0>, <&adsp_mailbox1>; |
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};
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