Commit 9ceb1cf5 authored by Laurentiu Mihalcea's avatar Laurentiu Mihalcea Committed by Shawn Guo
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arm64: dts: imx8mp: make 'dsp' node depend on 'aips5' 



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.

Reviewed-by: default avatarDaniel Baluta <daniel.baluta@nxp.com>
Signed-off-by: default avatarLaurentiu Mihalcea <laurentiu.mihalcea@nxp.com>
Signed-off-by: default avatarShawn Guo <shawnguo@kernel.org>
parent 286e622b

arch/arm64/boot/dts/freescale/imx8mp-aipstz.h

0 → 100644
+33 −0
Original line number Diff line number Diff line 
/* SPDX-License-Identifier: (GPL-2.0-only OR MIT) */

/*

 * Copyright 2025 NXP

 */



#ifndef __IMX8MP_AIPSTZ_H

#define __IMX8MP_AIPSTZ_H



/* consumer type - master or peripheral */

#define IMX8MP_AIPSTZ_MASTER		0x0

#define IMX8MP_AIPSTZ_PERIPH		0x1



/* master configuration options */

#define IMX8MP_AIPSTZ_MPL		(1 << 0)

#define IMX8MP_AIPSTZ_MTW		(1 << 1)

#define IMX8MP_AIPSTZ_MTR		(1 << 2)

#define IMX8MP_AIPSTZ_MBW		(1 << 3)



/* peripheral configuration options */

#define IMX8MP_AIPSTZ_TP		(1 << 0)

#define IMX8MP_AIPSTZ_WP		(1 << 1)

#define IMX8MP_AIPSTZ_SP		(1 << 2)

#define IMX8MP_AIPSTZ_BW		(1 << 3)



/* master ID definitions */

#define IMX8MP_AIPSTZ_EDMA		0 /* AUDIOMIX EDMA */

#define IMX8MP_AIPSTZ_CA53		1 /* Cortex-A53 cluster */

#define IMX8MP_AIPSTZ_SDMA2		3 /* AUDIOMIX SDMA2 */

#define IMX8MP_AIPSTZ_SDMA3		3 /* AUDIOMIX SDMA3 */

#define IMX8MP_AIPSTZ_HIFI4		5 /* HIFI4 DSP */

#define IMX8MP_AIPSTZ_CM7		6 /* Cortex-M7 */



#endif /* __IMX8MP_AIPSTZ_H */

arch/arm64/boot/dts/freescale/imx8mp.dtsi

+6 −0
Original line number Diff line number Diff line
@@ -13,6 +13,7 @@ 
#include <dt-bindings/interrupt-controller/arm-gic.h>

#include <dt-bindings/thermal/thermal.h>



#include "imx8mp-aipstz.h"

#include "imx8mp-pinfunc.h"



/ {
@@ -2506,6 +2507,11 @@ 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";

		};

	};