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charset="utf-8" Enable MU2 node and add mu2 root clock. MU2 is used to communicate with DSP core. Signed-off-by: Daniel Baluta Reviewed-by: Iuliana Prodan --- arch/arm64/boot/dts/freescale/imx8mp.dtsi | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/boot/dts/freescale/imx8mp.dtsi b/arch/arm64/boot/dt= s/freescale/imx8mp.dtsi index e0d3b8cba221..00924e0836db 100644 --- a/arch/arm64/boot/dts/freescale/imx8mp.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8mp.dtsi @@ -1252,7 +1252,7 @@ mu2: mailbox@30e60000 { reg =3D <0x30e60000 0x10000>; interrupts =3D ; #mbox-cells =3D <2>; - status =3D "disabled"; + clocks =3D <&audio_blk_ctrl IMX8MP_CLK_AUDIOMIX_MU2_ROOT>; }; =20 i2c5: i2c@30ad0000 { --=20 2.25.1 From nobody Wed Dec 17 12:47:21 2025 Received: from EUR03-DBA-obe.outbound.protection.outlook.com (mail-dbaeur03on2073.outbound.protection.outlook.com [40.107.104.73]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 241591A9B34; Tue, 10 Dec 2024 12:54:18 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; 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charset="utf-8" DSP can be used with various frameworks (e.g audio firmware, rproc). Currently 'dsp' configuration is intended for audio firmware but it doesn't work well with board level DTs (e.g imx8mp-evk) because board level DT enables audio related IPs (e.g SAI) while audio firmware needs this IPs disabled (because firmware will configure them). So, configure 'dsp' node to be used with rproc. This way users will be able to use board DT to use the DSP as long as they don't clash with Audio IP configurations. More comples usage of 'dsp' node (e.g by audio firmware) will need to create a separate dts file (or an overlay). This change follows the approach taken for other i.MX8 boards in commit 391a319c81f6d7 ("arm64: dts: imx8-ss-audio: configure dsp node for rproc usage") Signed-off-by: Daniel Baluta Reviewed-by: Iuliana Prodan --- arch/arm64/boot/dts/freescale/imx8mp.dtsi | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/arch/arm64/boot/dts/freescale/imx8mp.dtsi b/arch/arm64/boot/dt= s/freescale/imx8mp.dtsi index 00924e0836db..2f94c55e4999 100644 --- a/arch/arm64/boot/dts/freescale/imx8mp.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8mp.dtsi @@ -280,7 +280,7 @@ reserved-memory { ranges; =20 dsp_reserved: dsp@92400000 { - reg =3D <0 0x92400000 0 0x2000000>; + reg =3D <0 0x92400000 0 0x1000000>; no-map; status =3D "disabled"; }; @@ -2414,12 +2414,12 @@ usb_dwc3_1: usb@38200000 { }; =20 dsp: dsp@3b6e8000 { - compatible =3D "fsl,imx8mp-dsp"; + compatible =3D "fsl,imx8mp-hifi4"; reg =3D <0x3b6e8000 0x88000>; - mbox-names =3D "txdb0", "txdb1", - "rxdb0", "rxdb1"; - mboxes =3D <&mu2 2 0>, <&mu2 2 1>, - <&mu2 3 0>, <&mu2 3 1>; 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charset="utf-8" DSP core needs ocram, core and debug clocks. Signed-off-by: Daniel Baluta Reviewed-by: Iuliana Prodan --- arch/arm64/boot/dts/freescale/imx8mp.dtsi | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/arch/arm64/boot/dts/freescale/imx8mp.dtsi b/arch/arm64/boot/dt= s/freescale/imx8mp.dtsi index 2f94c55e4999..b42e6430123f 100644 --- a/arch/arm64/boot/dts/freescale/imx8mp.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8mp.dtsi @@ -2416,6 +2416,11 @@ usb_dwc3_1: usb@38200000 { dsp: dsp@3b6e8000 { compatible =3D "fsl,imx8mp-hifi4"; reg =3D <0x3b6e8000 0x88000>; + clocks =3D <&audio_blk_ctrl IMX8MP_CLK_AUDIOMIX_OCRAMA_IPG>, + <&audio_blk_ctrl IMX8MP_CLK_AUDIOMIX_OCRAMA_IPG>, + <&audio_blk_ctrl IMX8MP_CLK_AUDIOMIX_DSP_ROOT>, + <&audio_blk_ctrl IMX8MP_CLK_AUDIOMIX_DSPDBG_ROOT>; + clock-names =3D "ipg", "ocram", "core", "debug"; power-domains =3D <&pgc_audio>; mbox-names =3D "tx", "rx", "rxdb"; mboxes =3D <&mu2 0 0>, <&mu2 1 0>, <&mu2 3 0>; --=20 2.25.1 From nobody Wed Dec 17 12:47:21 2025 Received: from EUR03-DBA-obe.outbound.protection.outlook.com (mail-dbaeur03on2073.outbound.protection.outlook.com [40.107.104.73]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4DF851AA1E6; 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charset="utf-8" imx8mp audiomix contains a set of registers used to control the DSP. The dsp will use this to acquire o reference to audiomix registers and handle the registers to control the dsp. Signed-off-by: Daniel Baluta Acked-by: Krzysztof Kozlowski Reviewed-by: Iuliana Prodan --- .../devicetree/bindings/clock/imx8mp-audiomix.yaml | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/Documentation/devicetree/bindings/clock/imx8mp-audiomix.yaml b= /Documentation/devicetree/bindings/clock/imx8mp-audiomix.yaml index 6588a17a7d9a..0f870aaadba2 100644 --- a/Documentation/devicetree/bindings/clock/imx8mp-audiomix.yaml +++ b/Documentation/devicetree/bindings/clock/imx8mp-audiomix.yaml @@ -15,7 +15,9 @@ description: | =20 properties: compatible: - const: fsl,imx8mp-audio-blk-ctrl + items: + - const: fsl,imx8mp-audio-blk-ctrl + - const: syscon =20 reg: maxItems: 1 @@ -63,7 +65,7 @@ examples: #include =20 clock-controller@30e20000 { - compatible =3D "fsl,imx8mp-audio-blk-ctrl"; + compatible =3D "fsl,imx8mp-audio-blk-ctrl", "syscon"; reg =3D <0x30e20000 0x10000>; #clock-cells =3D <1>; clocks =3D <&clk IMX8MP_CLK_AUDIO_ROOT>, --=20 2.25.1 From nobody Wed Dec 17 12:47:21 2025 Received: from EUR03-DBA-obe.outbound.protection.outlook.com (mail-dbaeur03on2073.outbound.protection.outlook.com [40.107.104.73]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 72BD01AA7A6; 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charset="utf-8" Audio block control contains a set of registers some of them used for DSP configuration. Drivers (rproc, SOF) are using fsl,dsp-ctrl property to access those registers in order to control the operations of the DSP (e.g for start, reset, etc). Signed-off-by: Daniel Baluta Reviewed-by: Iuliana Prodan --- arch/arm64/boot/dts/freescale/imx8mp.dtsi | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/arm64/boot/dts/freescale/imx8mp.dtsi b/arch/arm64/boot/dt= s/freescale/imx8mp.dtsi index b42e6430123f..c8f9347d602c 100644 --- a/arch/arm64/boot/dts/freescale/imx8mp.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8mp.dtsi @@ -1609,7 +1609,7 @@ sdma2: dma-controller@30e10000 { }; =20 audio_blk_ctrl: clock-controller@30e20000 { - compatible =3D "fsl,imx8mp-audio-blk-ctrl"; + compatible =3D "fsl,imx8mp-audio-blk-ctrl", "syscon"; reg =3D <0x30e20000 0x10000>; #clock-cells =3D <1>; #reset-cells =3D <1>; @@ -2426,6 +2426,7 @@ dsp: dsp@3b6e8000 { mboxes =3D <&mu2 0 0>, <&mu2 1 0>, <&mu2 3 0>; firmware-name =3D "imx/dsp/hifi4.bin"; memory-region =3D <&dsp_reserved>; + fsl,dsp-ctrl =3D <&audio_blk_ctrl>; status =3D "disabled"; }; }; --=20 2.25.1 From nobody Wed Dec 17 12:47:21 2025 Received: from EUR03-DBA-obe.outbound.protection.outlook.com (mail-dbaeur03on2073.outbound.protection.outlook.com [40.107.104.73]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7C7761AAA1A; 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charset="utf-8" With imx8mp-evk board we are now configuring 'dsp' node for rproc usage, so add rproc specific memory regions. Also, enable dsp node because it is ready to be used. Signed-off-by: Daniel Baluta Reviewed-by: Ahmad Fatoum Reviewed-by: Iuliana Prodan --- arch/arm64/boot/dts/freescale/imx8mp-evk.dts | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts b/arch/arm64/boot= /dts/freescale/imx8mp-evk.dts index d26930f1a9e9..c732ee79772d 100644 --- a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts +++ b/arch/arm64/boot/dts/freescale/imx8mp-evk.dts @@ -291,6 +291,16 @@ &aud2htx { status =3D "okay"; }; =20 +&dsp_reserved { + status =3D "okay"; +}; + +&dsp { + memory-region =3D <&dsp_vdev0buffer>, <&dsp_vdev0vring0>, + <&dsp_vdev0vring1>, <&dsp_reserved>; + status =3D "okay"; +}; + &eqos { pinctrl-names =3D "default"; pinctrl-0 =3D <&pinctrl_eqos>; --=20 2.25.1