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