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arm64: dts: imx8mp: make 'dsp' node depend on 'aips5'

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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: Daniel Baluta <daniel.baluta@nxp.com>
Signed-off-by: Laurentiu Mihalcea <laurentiu.mihalcea@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
This commit is contained in:
Laurentiu Mihalcea 2025-11-11 04:00:22 -08:00 committed by Shawn Guo
parent 286e622bf4
commit 9ceb1cf5b2
2 changed files with 39 additions and 0 deletions
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33
arch/arm64/boot/dts/freescale/imx8mp-aipstz.h Normal file
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@ -0,0 +1,33 @@
/* 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 */

6
arch/arm64/boot/dts/freescale/imx8mp.dtsi
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@ -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 @@
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";
};
};