linux-kernel - [PATCH 3/3] arm64: dts: imx8ulp: add DSP node

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Message-Id: <20240418203720.8492-4-laurentiumihalcea111@gmail.com>
Date: Thu, 18 Apr 2024 23:37:20 +0300
From: Laurentiu Mihalcea <laurentiumihalcea111@...il.com>
To: Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Shawn Guo <shawnguo@...nel.org>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Pengutronix Kernel Team <kernel@...gutronix.de>,
	Fabio Estevam <festevam@...il.com>,
	Daniel Baluta <daniel.baluta@....com>,
	Shengjiu Wang <shengjiu.wang@....com>,
	Liu Ying <victor.liu@....com>
Cc: Laurentiu Mihalcea <laurentiu.mihalcea@....com>,
	devicetree@...r.kernel.org,
	imx@...ts.linux.dev,
	linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org
Subject: [PATCH 3/3] arm64: dts: imx8ulp: add DSP node

From: Laurentiu Mihalcea <laurentiu.mihalcea@....com>

Add node for i.MX8ULP's DSP core and its dependencies.

Signed-off-by: Shengjiu Wang <shengjiu.wang@....com>
Signed-off-by: Laurentiu Mihalcea <laurentiu.mihalcea@....com>
---
 arch/arm64/boot/dts/freescale/imx8ulp-evk.dts | 39 +++++++++++++++++++
 arch/arm64/boot/dts/freescale/imx8ulp.dtsi    | 22 +++++++++++
 2 files changed, 61 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8ulp-evk.dts b/arch/arm64/boot/dts/freescale/imx8ulp-evk.dts
index 24bb253b938d..5dadcbba370d 100644
--- a/arch/arm64/boot/dts/freescale/imx8ulp-evk.dts
+++ b/arch/arm64/boot/dts/freescale/imx8ulp-evk.dts
@@ -67,6 +67,32 @@ vdevbuffer: vdevbuffer@...00000 {
 			reg = <0 0xa8400000 0 0x100000>;
 			no-map;
 		};
+
+		dsp_reserved: dsp_reserved@...00000 {
+			reg = <0 0x8e000000 0 0x1000000>;
+			no-map;
+		};
+
+		dsp_reserved_heap: dsp_reserved_heap@...00000 {
+			reg = <0 0x8f000000 0 0xef0000>;
+			no-map;
+		};
+
+		dsp_vdev0vring0: vdev0vring0@...f0000 {
+			reg = <0 0x8fef0000 0 0x8000>;
+			no-map;
+		};
+
+		dsp_vdev0vring1: vdev0vring1@...f8000 {
+			reg = <0 0x8fef8000 0 0x8000>;
+			no-map;
+		};
+
+		dsp_vdev0buffer: vdev0buffer@...00000 {
+			compatible = "shared-dma-pool";
+			reg = <0 0x8ff00000 0 0x100000>;
+			no-map;
+		};
 	};
 
 	clock_ext_rmii: clock-ext-rmii {
@@ -95,6 +121,15 @@ &cm33 {
 	status = "okay";
 };
 
+&dsp {
+	assigned-clocks = <&cgc2 IMX8ULP_CLK_HIFI_SEL>, <&cgc2 IMX8ULP_CLK_HIFI_DIVCORE>;
+	assigned-clock-parents = <&cgc2 IMX8ULP_CLK_PLL4_PFD0>;
+	assigned-clock-rates = <0>, <475200000>;
+	memory-region = <&dsp_vdev0buffer>, <&dsp_vdev0vring0>,
+			<&dsp_vdev0vring1>, <&dsp_reserved>;
+	status = "okay";
+};
+
 &flexspi2 {
 	pinctrl-names = "default", "sleep";
 	pinctrl-0 = <&pinctrl_flexspi2_ptd>;
@@ -176,6 +211,10 @@ &mu {
 	status = "okay";
 };
 
+&mu3 {
+	status = "okay";
+};
+
 &iomuxc1 {
 	pinctrl_enet: enetgrp {
 		fsl,pins = <
diff --git a/arch/arm64/boot/dts/freescale/imx8ulp.dtsi b/arch/arm64/boot/dts/freescale/imx8ulp.dtsi
index c4a0082f30d3..99ed8c1ee57c 100644
--- a/arch/arm64/boot/dts/freescale/imx8ulp.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8ulp.dtsi
@@ -198,6 +198,22 @@ soc: soc@0 {
 		ranges = <0x0 0x0 0x0 0x40000000>,
 			 <0x60000000 0x0 0x60000000 0x1000000>;
 
+		dsp: dsp@...70000 {
+			compatible = "fsl,imx8ulp-hifi4";
+			reg = <0x21170000 0x20000>;
+			clocks = <&cgc2 IMX8ULP_CLK_LPAV_BUS_DIV>,
+				 <&cgc2 IMX8ULP_CLK_HIFI_DIVPLAT>,
+				 <&cgc2 IMX8ULP_CLK_HIFI_DIVCORE>,
+				 <&pcc5 IMX8ULP_CLK_MU3_B>;
+			clock-names = "ipg", "ocram", "core", "mu";
+			power-domains = <&scmi_devpd IMX8ULP_PD_HIFI4>;
+			firmware-name = "imx/dsp/hifi4.bin";
+			mbox-names = "tx", "rx", "rxdb";
+			mboxes = <&mu3 0 0>, <&mu3 1 0>, <&mu3 3 0>;
+			fsl,dsp-ctrl = <&avd_sim>;
+			status = "disabled";
+		};
+
 		s4muap: mailbox@...20000 {
 			compatible = "fsl,imx8ulp-mu-s4";
 			reg = <0x27020000 0x10000>;
@@ -520,6 +536,12 @@ per_bridge5: bus@...00000 {
 			#size-cells = <1>;
 			ranges;
 
+			avd_sim: syscon@...50000 {
+				compatible = "fsl,imx8ulp-avd-sim", "syscon", "simple-mfd";
+				reg = <0x2da50000 0x38>;
+				clocks = <&pcc5 IMX8ULP_CLK_AVD_SIM>;
+			};
+
 			cgc2: clock-controller@...60000 {
 				compatible = "fsl,imx8ulp-cgc2";
 				reg = <0x2da60000 0x10000>;
-- 
2.34.1