Thread (25 messages) 25 messages, 6 authors, 2025-03-11

Re: [PATCH 5/5] arm64: dts: imx8mp: make 'dsp' node depend on 'aips5'

From: Frank Li <Frank.li@nxp.com>
Date: 2025-02-21 19:59:14
Also in: imx, linux-devicetree, lkml

On Fri, Feb 21, 2025 at 02:19:09PM -0500, Laurentiu Mihalcea wrote:
From: Laurentiu Mihalcea <redacted>

The DSP may want to access peripherals on AIPSTZ5. To do so, the
It'd better descript as

The DSP need access ... at ... case.

Frank
quoted hunk ↗ jump to hunk
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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