62 lines
1.7 KiB
C
62 lines
1.7 KiB
C
|
// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
|
||
|
|
//
|
||
|
|
// Copyright (c) 2021 Mediatek Corporation. All rights reserved.
|
||
|
|
//
|
||
|
|
// Author: YC Hung <yc.hung@mediatek.com>
|
||
|
|
//
|
||
|
|
// Hardware interface for mt8195 DSP code loader
|
||
|
|
|
||
|
|
#include <sound/sof.h>
|
||
|
|
#include "mt8195.h"
|
||
|
|
#include "../../ops.h"
|
||
|
|
|
||
|
|
void sof_hifixdsp_boot_sequence(struct snd_sof_dev *sdev, u32 boot_addr)
|
||
|
|
{
|
||
|
|
/* ADSP bootup base */
|
||
|
|
snd_sof_dsp_write(sdev, DSP_REG_BAR, DSP_ALTRESETVEC, boot_addr);
|
||
|
|
|
||
|
|
/* pull high RunStall (set bit3 to 1) */
|
||
|
|
snd_sof_dsp_update_bits(sdev, DSP_REG_BAR, DSP_RESET_SW,
|
||
|
|
ADSP_RUNSTALL, ADSP_RUNSTALL);
|
||
|
|
|
||
|
|
/* pull high StatVectorSel to use AltResetVec (set bit4 to 1) */
|
||
|
|
snd_sof_dsp_update_bits(sdev, DSP_REG_BAR, DSP_RESET_SW,
|
||
|
|
STATVECTOR_SEL, STATVECTOR_SEL);
|
||
|
|
|
||
|
|
/* toggle DReset & BReset */
|
||
|
|
/* pull high DReset & BReset */
|
||
|
|
snd_sof_dsp_update_bits(sdev, DSP_REG_BAR, DSP_RESET_SW,
|
||
|
|
ADSP_BRESET_SW | ADSP_DRESET_SW,
|
||
|
|
ADSP_BRESET_SW | ADSP_DRESET_SW);
|
||
|
|
|
||
|
|
/* delay 10 DSP cycles at 26M about 1us by IP vendor's suggestion */
|
||
|
|
udelay(1);
|
||
|
|
|
||
|
|
/* pull low DReset & BReset */
|
||
|
|
snd_sof_dsp_update_bits(sdev, DSP_REG_BAR, DSP_RESET_SW,
|
||
|
|
ADSP_BRESET_SW | ADSP_DRESET_SW,
|
||
|
|
0);
|
||
|
|
|
||
|
|
/* Enable PDebug */
|
||
|
|
snd_sof_dsp_update_bits(sdev, DSP_REG_BAR, DSP_PDEBUGBUS0,
|
||
|
|
PDEBUG_ENABLE,
|
||
|
|
PDEBUG_ENABLE);
|
||
|
|
|
||
|
|
/* release RunStall (set bit3 to 0) */
|
||
|
|
snd_sof_dsp_update_bits(sdev, DSP_REG_BAR, DSP_RESET_SW,
|
||
|
|
ADSP_RUNSTALL, 0);
|
||
|
|
}
|
||
|
|
|
||
|
|
void sof_hifixdsp_shutdown(struct snd_sof_dev *sdev)
|
||
|
|
{
|
||
|
|
/* RUN_STALL pull high again to reset */
|
||
|
|
snd_sof_dsp_update_bits(sdev, DSP_REG_BAR, DSP_RESET_SW,
|
||
|
|
ADSP_RUNSTALL, ADSP_RUNSTALL);
|
||
|
|
|
||
|
|
/* pull high DReset & BReset */
|
||
|
|
snd_sof_dsp_update_bits(sdev, DSP_REG_BAR, DSP_RESET_SW,
|
||
|
|
ADSP_BRESET_SW | ADSP_DRESET_SW,
|
||
|
|
ADSP_BRESET_SW | ADSP_DRESET_SW);
|
||
|
|
}
|
||
|
|
|