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From: Laurentiu Mihalcea <laurentiumihalcea111@gmail.com>
To: Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Conor Dooley <conor+dt@kernel.org>,
	Shawn Guo <shawnguo@kernel.org>,
	Sascha Hauer <s.hauer@pengutronix.de>,
	Fabio Estevam <festevam@gmail.com>,
	Daniel Baluta <daniel.baluta@nxp.com>
Cc: Pengutronix Kernel Team <kernel@pengutronix.de>,
	devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org
Subject: [PATCH v3 2/3] arm64: dts: imx8mp: convert 'aips5' to 'aipstz5'
Date: Tue, 11 Nov 2025 04:00:21 -0800	[thread overview]
Message-ID: <20251111120022.696-3-laurentiumihalcea111@gmail.com> (raw)
In-Reply-To: <20251111120022.696-1-laurentiumihalcea111@gmail.com>

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

Change the programming model of the "aips5" node to allow configuring
the security-related registers exposed by the AIPSTZ5 bridge. Without
this, masters such as the HIFI4 DSP will have their access to the
peripherals connected to the bridge denied after power cycling the
AUDIOMIX domain.

Co-developed-by: Daniel Baluta <daniel.baluta@nxp.com>
Signed-off-by: Daniel Baluta <daniel.baluta@nxp.com>
Signed-off-by: Laurentiu Mihalcea <laurentiu.mihalcea@nxp.com>
---
 arch/arm64/boot/dts/freescale/imx8mp.dtsi | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/boot/dts/freescale/imx8mp.dtsi b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
index 7ab321af9e15..426c11853d84 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
@@ -1428,12 +1428,14 @@ eqos: ethernet@30bf0000 {
 			};
 		};
 
-		aips5: bus@30c00000 {
-			compatible = "fsl,aips-bus", "simple-bus";
-			reg = <0x30c00000 0x400000>;
+		aips5: bus@30df0000 {
+			compatible = "fsl,imx8mp-aipstz";
+			reg = <0x30df0000 0x10000>;
+			power-domains = <&pgc_audio>;
 			#address-cells = <1>;
 			#size-cells = <1>;
-			ranges;
+			#access-controller-cells = <3>;
+			ranges = <0x30c00000 0x30c00000 0x400000>;
 
 			spba-bus@30c00000 {
 				compatible = "fsl,spba-bus", "simple-bus";
-- 
2.43.0



  parent reply	other threads:[~2025-11-11 12:01 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-11-11 12:00 [PATCH v3 0/3] Switch to using AIPSTZ5 on i.MX8MP Laurentiu Mihalcea
2025-11-11 12:00 ` [PATCH v3 1/3] arm64: defconfig: enable i.MX AIPSTZ driver Laurentiu Mihalcea
2025-11-11 12:00 ` Laurentiu Mihalcea [this message]
2025-11-11 12:00 ` [PATCH v3 3/3] arm64: dts: imx8mp: make 'dsp' node depend on 'aips5' Laurentiu Mihalcea
2025-11-16 12:57 ` [PATCH v3 0/3] Switch to using AIPSTZ5 on i.MX8MP Shawn Guo

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