3 files changed, 77 insertions, 0 deletions
diff --git a/plat/mediatek/drivers/audio/mt8188/audio_domain.c b/plat/mediatek/drivers/audio/mt8188/audio_domain.c
new file mode 100644
index 0000000..cbafd19
--- /dev/null
+++ b/plat/mediatek/drivers/audio/mt8188/audio_domain.c
@@ -0,0 +1,44 @@
+/*
+ * Copyright (c) 2022, Mediatek Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <errno.h>
+#include <common/debug.h>
+
+#include <audio.h>
+#include <mt_audio_private.h>
+#include <mtk_mmap_pool.h>
+#include <platform_def.h>
+#include <spm_reg.h>
+
+#define MODULE_TAG "[AUDIO_DOMAIN]"
+
+int32_t set_audio_domain_sidebands(void)
+{
+	uint32_t val = mmio_read_32(PWR_STATUS);
+
+	if ((val & BIT(SPM_PWR_STATUS_AUDIO_BIT)) == 0) {
+		ERROR("%s: %s, pwr_status=0x%x, w/o [%d]AUDIO!\n",
+		      MODULE_TAG, __func__, val, SPM_PWR_STATUS_AUDIO_BIT);
+		return -EIO;
+	}
+
+	mmio_write_32(AFE_SE_SECURE_CON, 0x0);
+
+	mmio_write_32(AFE_SECURE_SIDEBAND0, 0x0);
+	mmio_write_32(AFE_SECURE_SIDEBAND1, 0x0);
+	mmio_write_32(AFE_SECURE_SIDEBAND2, 0x0);
+	mmio_write_32(AFE_SECURE_SIDEBAND3, 0x0);
+
+	VERBOSE("%s: %s, SE_SECURE_CON=0x%x, SIDEBAND0/1/2/3=0x%x/0x%x/0x%x/0x%x\n",
+		MODULE_TAG, __func__,
+		mmio_read_32(AFE_SE_SECURE_CON),
+		mmio_read_32(AFE_SECURE_SIDEBAND0),
+		mmio_read_32(AFE_SECURE_SIDEBAND1),
+		mmio_read_32(AFE_SECURE_SIDEBAND2),
+		mmio_read_32(AFE_SECURE_SIDEBAND3));
+
+	return 0;
+}
diff --git a/plat/mediatek/drivers/audio/mt8188/mt_audio_private.h b/plat/mediatek/drivers/audio/mt8188/mt_audio_private.h
new file mode 100644
index 0000000..bcb1abc
--- /dev/null
+++ b/plat/mediatek/drivers/audio/mt8188/mt_audio_private.h
@@ -0,0 +1,20 @@
+/*
+ * Copyright (c) 2022, MediaTek Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef MT_AUDIO_PRIVATE_H
+#define MT_AUDIO_PRIVATE_H
+
+#include <platform_def.h>
+
+#define AFE_SE_SECURE_CON		 (AUDIO_BASE + 0x17a8)
+#define AFE_SECURE_SIDEBAND0		 (AUDIO_BASE + 0x1908)
+#define AFE_SECURE_SIDEBAND1		 (AUDIO_BASE + 0x190c)
+#define AFE_SECURE_SIDEBAND2		 (AUDIO_BASE + 0x1910)
+#define AFE_SECURE_SIDEBAND3		 (AUDIO_BASE + 0x1914)
+
+#define SPM_PWR_STATUS_AUDIO_BIT	 (6)
+
+#endif /* MT_AUDIO_PRIVATE_H */
diff --git a/plat/mediatek/drivers/audio/mt8188/rules.mk b/plat/mediatek/drivers/audio/mt8188/rules.mk
new file mode 100644
index 0000000..82acbfc
--- /dev/null
+++ b/plat/mediatek/drivers/audio/mt8188/rules.mk
@@ -0,0 +1,13 @@
+#
+# Copyright (c) 2022, MediaTek Inc. All rights reserved.
+#
+# SPDX-License-Identifier: BSD-3-Clause
+#
+
+LOCAL_DIR := $(call GET_LOCAL_DIR)
+
+MODULE := audio_${MTK_SOC}
+
+LOCAL_SRCS-y := ${LOCAL_DIR}/audio_domain.c
+
+$(eval $(call MAKE_MODULE,$(MODULE),$(LOCAL_SRCS-y),$(MTK_BL)))