Thread (25 messages) 25 messages, 6 authors, 2025-03-11
STALE498d
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[PATCH 5/5] arm64: dts: imx8mp: make 'dsp' node depend on 'aips5'

From: Laurentiu Mihalcea <hidden>
Date: 2025-02-21 19:19:59
Also in: imx, linux-devicetree, lkml
Subsystem: arm/freescale imx / mxc arm architecture, the rest · Maintainers: Frank Li, Sascha Hauer, Linus Torvalds

From: Laurentiu Mihalcea <redacted>

The DSP may want to access peripherals on AIPSTZ5. To do so, the
security-related registers of the bridge have to be configured before
the DSP is started. Enforce a dependency on AIPSTZ5 by adding the
'access-controllers' property to the 'dsp' node.

Signed-off-by: Laurentiu Mihalcea <redacted>
---
 arch/arm64/boot/dts/freescale/imx8mp.dtsi | 1 +
 1 file changed, 1 insertion(+)
diff --git a/arch/arm64/boot/dts/freescale/imx8mp.dtsi b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
index a1d9b834d2da..9ec51e7e6678 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
@@ -2423,6 +2423,7 @@ dsp: dsp@3b6e8000 {
 			mboxes = <&mu2 2 0>, <&mu2 2 1>,
 				<&mu2 3 0>, <&mu2 3 1>;
 			memory-region = <&dsp_reserved>;
+			access-controllers = <&aips5>;
 			status = "disabled";
 		};
 	};
-- 
2.34.1

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