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>,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>
Cc: Pengutronix Kernel Team <kernel@pengutronix.de>,
devicetree@vger.kernel.org, imx@lists.linux.dev,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Subject: [PATCH 4/4] arm64: dts: imx8mp: make 'dsp' node depend on 'aips5'
Date: Thu, 21 Aug 2025 13:56:34 +0300 [thread overview]
Message-ID: <20250821105634.1893-5-laurentiumihalcea111@gmail.com> (raw)
In-Reply-To: <20250821105634.1893-1-laurentiumihalcea111@gmail.com>
From: Laurentiu Mihalcea <laurentiu.mihalcea@nxp.com>
The DSP needs to access peripherals on AIPSTZ5 (to communicate with
the AP using AUDIOMIX MU, for instance). 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 <laurentiu.mihalcea@nxp.com>
Reviewed-by: Daniel Baluta <daniel.baluta@nxp.com>
---
arch/arm64/boot/dts/freescale/imx8mp.dtsi | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/arch/arm64/boot/dts/freescale/imx8mp.dtsi b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
index afcd8c785cfd..841d155685ee 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
@@ -2437,6 +2437,11 @@ dsp: dsp@3b6e8000 {
firmware-name = "imx/dsp/hifi4.bin";
resets = <&audio_blk_ctrl IMX8MP_AUDIOMIX_DSP_RUNSTALL>;
reset-names = "runstall";
+ access-controllers = <&aips5
+ IMX8MP_AIPSTZ_HIFI4
+ IMX8MP_AIPSTZ_MASTER
+ (IMX8MP_AIPSTZ_MPL | IMX8MP_AIPSTZ_MTW | IMX8MP_AIPSTZ_MTR)
+ >;
status = "disabled";
};
};
--
2.34.1
prev parent reply other threads:[~2025-08-21 10:56 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-08-21 10:56 [PATCH 0/4] Switch to using AIPSTZ5 on i.MX8MP Laurentiu Mihalcea
2025-08-21 10:56 ` [PATCH 1/4] arm64: defconfig: enable i.MX AIPSTZ driver Laurentiu Mihalcea
2025-08-24 11:27 ` Krzysztof Kozlowski
2025-08-21 10:56 ` [PATCH 2/4] arm64: dts: imx8mp: convert 'aips5' to 'aipstz5' Laurentiu Mihalcea
2025-08-24 11:29 ` Krzysztof Kozlowski
2025-08-21 10:56 ` [PATCH 3/4] arm64: dts: imx8mp: add aipstz-related definitions Laurentiu Mihalcea
2025-08-24 11:29 ` Krzysztof Kozlowski
2025-08-21 10:56 ` Laurentiu Mihalcea [this message]
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