From: Daniel Baluta <daniel.baluta@oss.nxp.com> To: shawnguo@kernel.org Cc: robh+dt@kernel.org, s.hauer@pengutronix.de, festevam@gmail.com, ping.bai@nxp.com, qiangqing.zhang@nxp.com, alice.guo@nxp.com, yibin.gong@nxp.com, linux-imx@nxp.com, peng.fan@nxp.com, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, daniel.baluta@gmail.com, linux-kernel@vger.kernel.org, Daniel Baluta <daniel.baluta@nxp.com> Subject: [PATCH v3] arm64: dts: imx8mp: Add dsp node Date: Fri, 23 Jul 2021 14:05:40 +0300 [thread overview] Message-ID: <20210723110540.1332145-1-daniel.baluta@oss.nxp.com> (raw) From: Daniel Baluta <daniel.baluta@nxp.com> i.MX8 MPlus SoC integrates Cadence HIFI4 DSP. This core runs either a custom firmware or the open source SOF firmware [1] DSP device is handled by SOF OF driver found in sound/soc/sof/sof-of-dev.c Notice that the DSP node makes use of: - dsp_reserved, a reserved memory region for various Audio resources (e.g firmware loading, audio buffers, etc). - Messaging Unit (mu2) for passing notifications betweem ARM core and DSP. [1] https://thesofproject.github.io/latest/platforms/index.html Signed-off-by: Daniel Baluta <daniel.baluta@nxp.com> --- Changes since v2: * add new line between dts nodes Changes since v1: » * mark MU2 node as disabled, because mu2 clock support is not yet upstream. arch/arm64/boot/dts/freescale/imx8mp.dtsi | 30 +++++++++++++++++++++++ 1 file changed, 30 insertions(+) diff --git a/arch/arm64/boot/dts/freescale/imx8mp.dtsi b/arch/arm64/boot/dts/freescale/imx8mp.dtsi index 9f7c7f587d38..2a1a4ff36c67 100644 --- a/arch/arm64/boot/dts/freescale/imx8mp.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8mp.dtsi @@ -135,6 +135,17 @@ clk_ext4: clock-ext4 { clock-output-names = "clk_ext4"; }; + reserved-memory { + #address-cells = <2>; + #size-cells = <2>; + ranges; + + dsp_reserved: dsp@92400000 { + reg = <0 0x92400000 0 0x2000000>; + no-map; + }; + }; + pmu { compatible = "arm,cortex-a53-pmu"; interrupts = <GIC_PPI 7 @@ -698,6 +709,14 @@ mu: mailbox@30aa0000 { #mbox-cells = <2>; }; + mu2: mailbox@30e60000 { + compatible = "fsl,imx8mp-mu", "fsl,imx6sx-mu"; + reg = <0x30e60000 0x10000>; + interrupts = <GIC_SPI 136 IRQ_TYPE_LEVEL_HIGH>; + #mbox-cells = <2>; + status = "disabled"; + }; + i2c5: i2c@30ad0000 { compatible = "fsl,imx8mp-i2c", "fsl,imx21-i2c"; #address-cells = <1>; @@ -938,5 +957,16 @@ usb_dwc3_1: usb@38200000 { snps,dis-u2-freeclk-exists-quirk; }; }; + + dsp: dsp@3b6e8000 { + compatible = "fsl,imx8mp-dsp"; + reg = <0x3b6e8000 0x88000>; + mbox-names = "txdb0", "txdb1", + "rxdb0", "rxdb1"; + mboxes = <&mu2 2 0>, <&mu2 2 1>, + <&mu2 3 0>, <&mu2 3 1>; + memory-region = <&dsp_reserved>; + status = "disabled"; + }; }; }; -- 2.27.0
WARNING: multiple messages have this Message-ID (diff)
From: Daniel Baluta <daniel.baluta@oss.nxp.com> To: shawnguo@kernel.org Cc: robh+dt@kernel.org, s.hauer@pengutronix.de, festevam@gmail.com, ping.bai@nxp.com, qiangqing.zhang@nxp.com, alice.guo@nxp.com, yibin.gong@nxp.com, linux-imx@nxp.com, peng.fan@nxp.com, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, daniel.baluta@gmail.com, linux-kernel@vger.kernel.org, Daniel Baluta <daniel.baluta@nxp.com> Subject: [PATCH v3] arm64: dts: imx8mp: Add dsp node Date: Fri, 23 Jul 2021 14:05:40 +0300 [thread overview] Message-ID: <20210723110540.1332145-1-daniel.baluta@oss.nxp.com> (raw) From: Daniel Baluta <daniel.baluta@nxp.com> i.MX8 MPlus SoC integrates Cadence HIFI4 DSP. This core runs either a custom firmware or the open source SOF firmware [1] DSP device is handled by SOF OF driver found in sound/soc/sof/sof-of-dev.c Notice that the DSP node makes use of: - dsp_reserved, a reserved memory region for various Audio resources (e.g firmware loading, audio buffers, etc). - Messaging Unit (mu2) for passing notifications betweem ARM core and DSP. [1] https://thesofproject.github.io/latest/platforms/index.html Signed-off-by: Daniel Baluta <daniel.baluta@nxp.com> --- Changes since v2: * add new line between dts nodes Changes since v1: » * mark MU2 node as disabled, because mu2 clock support is not yet upstream. arch/arm64/boot/dts/freescale/imx8mp.dtsi | 30 +++++++++++++++++++++++ 1 file changed, 30 insertions(+) diff --git a/arch/arm64/boot/dts/freescale/imx8mp.dtsi b/arch/arm64/boot/dts/freescale/imx8mp.dtsi index 9f7c7f587d38..2a1a4ff36c67 100644 --- a/arch/arm64/boot/dts/freescale/imx8mp.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8mp.dtsi @@ -135,6 +135,17 @@ clk_ext4: clock-ext4 { clock-output-names = "clk_ext4"; }; + reserved-memory { + #address-cells = <2>; + #size-cells = <2>; + ranges; + + dsp_reserved: dsp@92400000 { + reg = <0 0x92400000 0 0x2000000>; + no-map; + }; + }; + pmu { compatible = "arm,cortex-a53-pmu"; interrupts = <GIC_PPI 7 @@ -698,6 +709,14 @@ mu: mailbox@30aa0000 { #mbox-cells = <2>; }; + mu2: mailbox@30e60000 { + compatible = "fsl,imx8mp-mu", "fsl,imx6sx-mu"; + reg = <0x30e60000 0x10000>; + interrupts = <GIC_SPI 136 IRQ_TYPE_LEVEL_HIGH>; + #mbox-cells = <2>; + status = "disabled"; + }; + i2c5: i2c@30ad0000 { compatible = "fsl,imx8mp-i2c", "fsl,imx21-i2c"; #address-cells = <1>; @@ -938,5 +957,16 @@ usb_dwc3_1: usb@38200000 { snps,dis-u2-freeclk-exists-quirk; }; }; + + dsp: dsp@3b6e8000 { + compatible = "fsl,imx8mp-dsp"; + reg = <0x3b6e8000 0x88000>; + mbox-names = "txdb0", "txdb1", + "rxdb0", "rxdb1"; + mboxes = <&mu2 2 0>, <&mu2 2 1>, + <&mu2 3 0>, <&mu2 3 1>; + memory-region = <&dsp_reserved>; + status = "disabled"; + }; }; }; -- 2.27.0 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next reply other threads:[~2021-07-23 11:05 UTC|newest] Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-07-23 11:05 Daniel Baluta [this message] 2021-07-23 11:05 ` [PATCH v3] arm64: dts: imx8mp: Add dsp node Daniel Baluta 2021-07-26 1:24 ` Shawn Guo 2021-07-26 1:24 ` Shawn Guo
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