linux-kernel - [PATCH 3/3] arm64: dts: ti: k3-j721e: Enable C6x DSP nodes at the board level

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Date:   Wed, 9 Aug 2023 13:01:45 -0500
From:   Andrew Davis <afd@...com>
To:     Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>, Nishanth Menon <nm@...com>,
        Vignesh Raghavendra <vigneshr@...com>,
        Tero Kristo <kristo@...nel.org>, Udit Kumar <u-kumar1@...com>
CC:     <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, Andrew Davis <afd@...com>
Subject: [PATCH 3/3] arm64: dts: ti: k3-j721e: Enable C6x DSP nodes at the board level

C6x DSP nodes defined in the top-level J721e SoC dtsi files are incomplete
and will not be functional unless they are extended with both mboxes and
memory-region information.

As theses only known about at the board integration level, these nodes
should only be enabled when provided with this information.

Disable the C6x DSP nodes in the dtsi files and only enable the ones that
are given the required mboxes and memory-region on a given board.

Signed-off-by: Andrew Davis <afd@...com>
---
 arch/arm64/boot/dts/ti/k3-j721e-beagleboneai64.dts | 2 ++
 arch/arm64/boot/dts/ti/k3-j721e-main.dtsi          | 2 ++
 arch/arm64/boot/dts/ti/k3-j721e-sk.dts             | 2 ++
 arch/arm64/boot/dts/ti/k3-j721e-som-p0.dtsi        | 2 ++
 4 files changed, 8 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-j721e-beagleboneai64.dts b/arch/arm64/boot/dts/ti/k3-j721e-beagleboneai64.dts
index d1235e7c786d6..f6516a36f9039 100644
--- a/arch/arm64/boot/dts/ti/k3-j721e-beagleboneai64.dts
+++ b/arch/arm64/boot/dts/ti/k3-j721e-beagleboneai64.dts
@@ -1012,12 +1012,14 @@ &main_r5fss1_core1 {
 };
 
 &c66_0 {
+	status = "okay";
 	mboxes = <&mailbox0_cluster3>, <&mbox_c66_0>;
 	memory-region = <&c66_0_dma_memory_region>,
 			<&c66_0_memory_region>;
 };
 
 &c66_1 {
+	status = "okay";
 	mboxes = <&mailbox0_cluster3>, <&mbox_c66_1>;
 	memory-region = <&c66_1_dma_memory_region>,
 			<&c66_1_memory_region>;
diff --git a/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi b/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
index 1aeb97b42b34b..5da86921b1779 100644
--- a/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
@@ -2109,6 +2109,7 @@ c66_0: dsp@...0800000 {
 		ti,sci-proc-ids = <0x03 0xff>;
 		resets = <&k3_reset 142 1>;
 		firmware-name = "j7-c66_0-fw";
+		status = "disabled";
 	};
 
 	c66_1: dsp@...1800000 {
@@ -2122,6 +2123,7 @@ c66_1: dsp@...1800000 {
 		ti,sci-proc-ids = <0x04 0xff>;
 		resets = <&k3_reset 143 1>;
 		firmware-name = "j7-c66_1-fw";
+		status = "disabled";
 	};
 
 	c71_0: dsp@...00000 {
diff --git a/arch/arm64/boot/dts/ti/k3-j721e-sk.dts b/arch/arm64/boot/dts/ti/k3-j721e-sk.dts
index 377588ba30998..cce25f13cf8af 100644
--- a/arch/arm64/boot/dts/ti/k3-j721e-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-j721e-sk.dts
@@ -1098,12 +1098,14 @@ &main_r5fss1_core1 {
 };
 
 &c66_0 {
+	status = "okay";
 	mboxes = <&mailbox0_cluster3>, <&mbox_c66_0>;
 	memory-region = <&c66_0_dma_memory_region>,
 			<&c66_0_memory_region>;
 };
 
 &c66_1 {
+	status = "okay";
 	mboxes = <&mailbox0_cluster3>, <&mbox_c66_1>;
 	memory-region = <&c66_1_dma_memory_region>,
 			<&c66_1_memory_region>;
diff --git a/arch/arm64/boot/dts/ti/k3-j721e-som-p0.dtsi b/arch/arm64/boot/dts/ti/k3-j721e-som-p0.dtsi
index 3c31ab57e959c..eaf9e4564d032 100644
--- a/arch/arm64/boot/dts/ti/k3-j721e-som-p0.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j721e-som-p0.dtsi
@@ -424,12 +424,14 @@ &main_r5fss1_core1 {
 };
 
 &c66_0 {
+	status = "okay";
 	mboxes = <&mailbox0_cluster3>, <&mbox_c66_0>;
 	memory-region = <&c66_0_dma_memory_region>,
 			<&c66_0_memory_region>;
 };
 
 &c66_1 {
+	status = "okay";
 	mboxes = <&mailbox0_cluster3>, <&mbox_c66_1>;
 	memory-region = <&c66_1_dma_memory_region>,
 			<&c66_1_memory_region>;
-- 
2.39.2