ASoC: SOF: Add support for Mediatek MT8195

Merge series from Daniel Baluta <daniel.baluta@oss.nxp.com>:

This adds sound open firmware driver support for MT8915 platform.

include/sound/sof/dai-mediatek.h

+/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) */
+/*
+ * Copyright(c) 2021 Mediatek Corporation. All rights reserved.
+ *
+ * Author: Bo Pan <bo.pan@mediatek.com>
+ */
+
+#ifndef __INCLUDE_SOUND_SOF_DAI_MEDIATEK_H__
+#define __INCLUDE_SOUND_SOF_DAI_MEDIATEK_H__
+
+#include <sound/sof/header.h>
+
+struct sof_ipc_dai_mtk_afe_params {
+	struct sof_ipc_hdr hdr;
+	u32 channels;
+	u32 rate;
+	u32 format;
+	u32 stream_id;
+	u32 reserved[4]; /* reserve for future */
+} __packed;
+
+#endif
+

include/sound/sof/dai.h

@@ -13,6 +13,7 @@
 #include <sound/sof/dai-intel.h>
 #include <sound/sof/dai-imx.h>
 #include <sound/sof/dai-amd.h>
+#include <sound/sof/dai-mediatek.h>
 
 /*
  * DAI Configuration.
@@ -70,6 +71,7 @@ enum sof_ipc_dai_type {
 	SOF_DAI_AMD_BT,			/**< AMD ACP BT*/
 	SOF_DAI_AMD_SP,			/**< AMD ACP SP */
 	SOF_DAI_AMD_DMIC,		/**< AMD ACP DMIC */
+	SOF_DAI_MEDIATEK_AFE,		/**< Mediatek AFE */
 };
 
 /* general purpose DAI configuration */
@@ -97,6 +99,7 @@ struct sof_ipc_dai_config {
 		struct sof_ipc_dai_acp_params acpbt;
 		struct sof_ipc_dai_acp_params acpsp;
 		struct sof_ipc_dai_acp_params acpdmic;
+		struct sof_ipc_dai_mtk_afe_params afe;
 	};
 } __packed;
 

include/uapi/sound/sof/tokens.h

@@ -140,4 +140,9 @@
 #define SOF_TKN_INTEL_HDA_RATE			1500
 #define SOF_TKN_INTEL_HDA_CH			1501
 
+/* AFE */
+#define SOF_TKN_MEDIATEK_AFE_RATE		1600
+#define SOF_TKN_MEDIATEK_AFE_CH			1601
+#define SOF_TKN_MEDIATEK_AFE_FORMAT		1602
+
 #endif

sound/soc/sof/Kconfig

@@ -42,7 +42,7 @@ config SND_SOC_SOF_OF
 	depends on OF || COMPILE_TEST
 	help
 	  This adds support for Device Tree enumeration. This option is
-	  required to enable i.MX8 devices.
+	  required to enable i.MX8 or Mediatek devices.
 	  Say Y if you need this option. If unsure select "N".
 
 config SND_SOC_SOF_OF_DEV
@@ -236,6 +236,7 @@ config SND_SOC_SOF_PROBE_WORK_QUEUE
 source "sound/soc/sof/amd/Kconfig"
 source "sound/soc/sof/imx/Kconfig"
 source "sound/soc/sof/intel/Kconfig"
+source "sound/soc/sof/mediatek/Kconfig"
 source "sound/soc/sof/xtensa/Kconfig"
 
 endif

sound/soc/sof/Makefile

@@ -24,3 +24,4 @@ obj-$(CONFIG_SND_SOC_SOF_INTEL_TOPLEVEL) += intel/
 obj-$(CONFIG_SND_SOC_SOF_IMX_TOPLEVEL) += imx/
 obj-$(CONFIG_SND_SOC_SOF_AMD_TOPLEVEL) += amd/
 obj-$(CONFIG_SND_SOC_SOF_XTENSA) += xtensa/
+obj-$(CONFIG_SND_SOC_SOF_MTK_TOPLEVEL) += mediatek/

sound/soc/sof/mediatek/Kconfig

+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
+
+config SND_SOC_SOF_MTK_TOPLEVEL
+	bool "SOF support for MTK audio DSPs"
+	depends on ARM64 || COMPILE_TEST
+	depends on SND_SOC_SOF_OF
+	help
+	  This adds support for Sound Open Firmware for Mediatek platforms.
+	  It is top level for all mediatek platforms.
+	  Say Y if you have such a device.
+	  If unsure select "N".
+
+if SND_SOC_SOF_MTK_TOPLEVEL
+config SND_SOC_SOF_MTK_COMMON
+	tristate
+	select SND_SOC_SOF_OF_DEV
+	select SND_SOC_SOF
+	select SND_SOC_SOF_XTENSA
+	select SND_SOC_SOF_COMPRESS
+	help
+	  This option is not user-selectable but automagically handled by
+	  'select' statements at a higher level
+
+config SND_SOC_SOF_MT8195
+	tristate "SOF support for MT8195 audio DSP"
+	select SND_SOC_SOF_MTK_COMMON
+	help
+	  This adds support for Sound Open Firmware for Mediatek platforms
+	  using the mt8195 processors.
+	  Say Y if you have such a device.
+	  If unsure select "N".
+
+endif ## SND_SOC_SOF_MTK_TOPLEVEL

sound/soc/sof/mediatek/Makefile

+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
+obj-$(CONFIG_SND_SOC_SOF_MT8195) += mt8195/

sound/soc/sof/mediatek/adsp_helper.h

+/* SPDX-License-Identifier: GPL-2.0 */
+
+/*
+ * Copyright (c) 2021 MediaTek Corporation. All rights reserved.
+ */
+
+#ifndef __MTK_ADSP_HELPER_H__
+#define __MTK_ADSP_HELPER_H__
+
+/*
+ * Global important adsp data structure.
+ */
+#define DSP_MBOX_NUM	3
+
+struct mtk_adsp_chip_info {
+	phys_addr_t pa_sram;
+	phys_addr_t pa_dram; /* adsp dram physical base */
+	phys_addr_t pa_shared_dram; /* adsp dram physical base */
+	phys_addr_t pa_cfgreg;
+	phys_addr_t pa_mboxreg[DSP_MBOX_NUM];
+	u32 sramsize;
+	u32 dramsize;
+	u32 cfgregsize;
+	void __iomem *va_sram; /* corresponding to pa_sram */
+	void __iomem *va_dram; /* corresponding to pa_dram */
+	void __iomem *va_cfgreg;
+	void __iomem *va_mboxreg[DSP_MBOX_NUM];
+	void __iomem *shared_sram; /* part of  va_sram */
+	void __iomem *shared_dram; /* part of  va_dram */
+	phys_addr_t adsp_bootup_addr;
+	int dram_offset; /*dram offset between system and dsp view*/
+};
+
+struct adsp_priv {
+	struct device *dev;
+	struct snd_sof_dev *sdev;
+
+	/* DSP IPC handler */
+	struct mbox_controller *adsp_mbox;
+
+	struct mtk_adsp_chip_info *adsp;
+	struct clk **clk;
+	u32 (*ap2adsp_addr)(u32 addr, void *data);
+	u32 (*adsp2ap_addr)(u32 addr, void *data);
+
+	void *private_data;
+};
+
+#endif

sound/soc/sof/mediatek/mediatek-ops.h

+/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) */
+
+#ifndef __MEDIATEK_OPS_H__
+#define __MEDIATEK_OPS_H__
+
+extern const struct snd_sof_dsp_ops sof_mt8195_ops;
+
+#endif

sound/soc/sof/mediatek/mt8195/Makefile

+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
+snd-sof-mt8195-objs := mt8195.o mt8195-clk.o mt8195-loader.o
+obj-$(CONFIG_SND_SOC_SOF_MT8195) += snd-sof-mt8195.o

sound/soc/sof/mediatek/mt8195/mt8195-clk.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 clock
+
+#include <linux/clk.h>
+#include <linux/pm_runtime.h>
+#include <linux/io.h>
+#include "mt8195.h"
+#include "mt8195-clk.h"
+#include "../adsp_helper.h"
+#include "../../sof-audio.h"
+
+static const char *adsp_clks[ADSP_CLK_MAX] = {
+	[CLK_TOP_ADSP] = "adsp_sel",
+	[CLK_TOP_CLK26M] = "clk26m_ck",
+	[CLK_TOP_AUDIO_LOCAL_BUS] = "audio_local_bus",
+	[CLK_TOP_MAINPLL_D7_D2] = "mainpll_d7_d2",
+	[CLK_SCP_ADSP_AUDIODSP] = "scp_adsp_audiodsp",
+	[CLK_TOP_AUDIO_H] = "audio_h",
+};
+
+int mt8195_adsp_init_clock(struct snd_sof_dev *sdev)
+{
+	struct device *dev = sdev->dev;
+	struct adsp_priv *priv = sdev->pdata->hw_pdata;
+	int i;
+
+	priv->clk = devm_kcalloc(dev, ADSP_CLK_MAX, sizeof(*priv->clk), GFP_KERNEL);
+
+	if (!priv->clk)
+		return -ENOMEM;
+
+	for (i = 0; i < ADSP_CLK_MAX; i++) {
+		priv->clk[i] = devm_clk_get(dev, adsp_clks[i]);
+		if (IS_ERR(priv->clk[i]))
+			return PTR_ERR(priv->clk[i]);
+	}
+
+	return 0;
+}
+
+static int adsp_enable_all_clock(struct snd_sof_dev *sdev)
+{
+	struct device *dev = sdev->dev;
+	struct adsp_priv *priv = sdev->pdata->hw_pdata;
+	int ret;
+
+	ret = clk_prepare_enable(priv->clk[CLK_TOP_MAINPLL_D7_D2]);
+	if (ret) {
+		dev_err(dev, "%s clk_prepare_enable(mainpll_d7_d2) fail %d\n",
+			__func__, ret);
+		return ret;
+	}
+
+	ret = clk_prepare_enable(priv->clk[CLK_TOP_ADSP]);
+	if (ret) {
+		dev_err(dev, "%s clk_prepare_enable(adsp_sel) fail %d\n",
+			__func__, ret);
+		goto disable_mainpll_d7_d2_clk;
+	}
+
+	ret = clk_prepare_enable(priv->clk[CLK_TOP_AUDIO_LOCAL_BUS]);
+	if (ret) {
+		dev_err(dev, "%s clk_prepare_enable(audio_local_bus) fail %d\n",
+			__func__, ret);
+		goto disable_dsp_sel_clk;
+	}
+
+	ret = clk_prepare_enable(priv->clk[CLK_SCP_ADSP_AUDIODSP]);
+	if (ret) {
+		dev_err(dev, "%s clk_prepare_enable(scp_adsp_audiodsp) fail %d\n",
+			__func__, ret);
+		goto disable_audio_local_bus_clk;
+	}
+
+	ret = clk_prepare_enable(priv->clk[CLK_TOP_AUDIO_H]);
+	if (ret) {
+		dev_err(dev, "%s clk_prepare_enable(audio_h) fail %d\n",
+			__func__, ret);
+		goto disable_scp_adsp_audiodsp_clk;
+	}
+
+	return 0;
+
+disable_scp_adsp_audiodsp_clk:
+	clk_disable_unprepare(priv->clk[CLK_SCP_ADSP_AUDIODSP]);
+disable_audio_local_bus_clk:
+	clk_disable_unprepare(priv->clk[CLK_TOP_AUDIO_LOCAL_BUS]);
+disable_dsp_sel_clk:
+	clk_disable_unprepare(priv->clk[CLK_TOP_ADSP]);
+disable_mainpll_d7_d2_clk:
+	clk_disable_unprepare(priv->clk[CLK_TOP_MAINPLL_D7_D2]);
+
+	return ret;
+}
+
+static void adsp_disable_all_clock(struct snd_sof_dev *sdev)
+{
+	struct adsp_priv *priv = sdev->pdata->hw_pdata;
+
+	clk_disable_unprepare(priv->clk[CLK_TOP_AUDIO_H]);
+	clk_disable_unprepare(priv->clk[CLK_SCP_ADSP_AUDIODSP]);
+	clk_disable_unprepare(priv->clk[CLK_TOP_AUDIO_LOCAL_BUS]);
+	clk_disable_unprepare(priv->clk[CLK_TOP_ADSP]);
+	clk_disable_unprepare(priv->clk[CLK_TOP_MAINPLL_D7_D2]);
+}
+
+static int adsp_default_clk_init(struct snd_sof_dev *sdev, bool enable)
+{
+	struct device *dev = sdev->dev;
+	struct adsp_priv *priv = sdev->pdata->hw_pdata;
+	int ret;
+
+	dev_dbg(dev, "%s: %s\n", __func__, enable ? "on" : "off");
+
+	if (enable) {
+		ret = clk_set_parent(priv->clk[CLK_TOP_ADSP],
+				     priv->clk[CLK_TOP_CLK26M]);
+		if (ret) {
+			dev_err(dev, "failed to set dsp_sel to clk26m: %d\n", ret);
+			return ret;
+		}
+
+		ret = clk_set_parent(priv->clk[CLK_TOP_AUDIO_LOCAL_BUS],
+				     priv->clk[CLK_TOP_MAINPLL_D7_D2]);
+		if (ret) {
+			dev_err(dev, "set audio_local_bus failed %d\n", ret);
+			return ret;
+		}
+
+		ret = adsp_enable_all_clock(sdev);
+		if (ret) {
+			dev_err(dev, "failed to adsp_enable_clock: %d\n", ret);
+			return ret;
+		}
+	} else {
+		adsp_disable_all_clock(sdev);
+	}
+
+	return 0;
+}
+
+int adsp_clock_on(struct snd_sof_dev *sdev)
+{
+	/* Open ADSP clock */
+	return adsp_default_clk_init(sdev, 1);
+}
+
+int adsp_clock_off(struct snd_sof_dev *sdev)
+{
+	/* Close ADSP clock */
+	return adsp_default_clk_init(sdev, 0);
+}
+

sound/soc/sof/mediatek/mt8195/mt8195-clk.h

+/* SPDX-License-Identifier: GPL-2.0 */
+
+/*
+ * Copyright (c) 2021 MediaTek Corporation. All rights reserved.
+ *
+ *  Header file for the mt8195 DSP clock  definition
+ */
+
+#ifndef __MT8195_CLK_H
+#define __MT8195_CLK_H
+
+struct snd_sof_dev;
+
+/*DSP clock*/
+enum adsp_clk_id {
+	CLK_TOP_ADSP,
+	CLK_TOP_CLK26M,
+	CLK_TOP_AUDIO_LOCAL_BUS,
+	CLK_TOP_MAINPLL_D7_D2,
+	CLK_SCP_ADSP_AUDIODSP,
+	CLK_TOP_AUDIO_H,
+	ADSP_CLK_MAX
+};
+
+int mt8195_adsp_init_clock(struct snd_sof_dev *sdev);
+int adsp_clock_on(struct snd_sof_dev *sdev);
+int adsp_clock_off(struct snd_sof_dev *sdev);
+#endif

sound/soc/sof/mediatek/mt8195/mt8195-loader.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,
+				DSP_RESET_SW, DSP_RESET_SW);
+
+	/* 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);
+
+	/* 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)
+{
+	/* Clear to 0 firstly */
+	snd_sof_dsp_write(sdev, DSP_REG_BAR, DSP_RESET_SW, 0x0);
+
+	/* RUN_STALL pull high again to reset */
+	snd_sof_dsp_update_bits(sdev, DSP_REG_BAR, DSP_RESET_SW,
+				ADSP_RUNSTALL, ADSP_RUNSTALL);
+}
+

sound/soc/sof/mediatek/mt8195/mt8195.c

+// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
+//
+// Copyright(c) 2021 Mediatek Inc. All rights reserved.
+//
+// Author: YC Hung <yc.hung@mediatek.com>
+//
+
+/*
+ * Hardware interface for audio DSP on mt8195
+ */
+
+#include <linux/delay.h>
+#include <linux/firmware.h>
+#include <linux/io.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
+#include <linux/of_platform.h>
+#include <linux/of_reserved_mem.h>
+#include <linux/module.h>
+
+#include <sound/sof.h>
+#include <sound/sof/xtensa.h>
+#include "../../ops.h"
+#include "../../sof-audio.h"
+#include "../adsp_helper.h"
+#include "../mediatek-ops.h"
+#include "mt8195.h"
+#include "mt8195-clk.h"
+
+static int platform_parse_resource(struct platform_device *pdev, void *data)
+{
+	struct resource *mmio;
+	struct resource res;
+	struct device_node *mem_region;
+	struct device *dev = &pdev->dev;
+	struct mtk_adsp_chip_info *adsp = data;
+	int ret;
+
+	mem_region = of_parse_phandle(dev->of_node, "memory-region", 0);
+	if (!mem_region) {
+		dev_err(dev, "no dma memory-region phandle\n");
+		return -ENODEV;
+	}
+
+	ret = of_address_to_resource(mem_region, 0, &res);
+	if (ret) {
+		dev_err(dev, "of_address_to_resource dma failed\n");
+		return ret;
+	}
+
+	dev_dbg(dev, "DMA pbase=0x%llx, size=0x%llx\n",
+		(phys_addr_t)res.start, resource_size(&res));
+
+	ret = of_reserved_mem_device_init(dev);
+	if (ret) {
+		dev_err(dev, "of_reserved_mem_device_init failed\n");
+		return ret;
+	}
+
+	mem_region = of_parse_phandle(dev->of_node, "memory-region", 1);
+	if (!mem_region) {
+		dev_err(dev, "no memory-region sysmem phandle\n");
+		return -ENODEV;
+	}
+
+	ret = of_address_to_resource(mem_region, 0, &res);
+	if (ret) {
+		dev_err(dev, "of_address_to_resource sysmem failed\n");
+		return ret;
+	}
+
+	adsp->pa_dram = (phys_addr_t)res.start;
+	adsp->dramsize = resource_size(&res);
+	if (adsp->pa_dram & DRAM_REMAP_MASK) {
+		dev_err(dev, "adsp memory(%#x) is not 4K-aligned\n",
+			(u32)adsp->pa_dram);
+		return -EINVAL;
+	}
+
+	if (adsp->dramsize < TOTAL_SIZE_SHARED_DRAM_FROM_TAIL) {
+		dev_err(dev, "adsp memory(%#x) is not enough for share\n",
+			adsp->dramsize);
+		return -EINVAL;
+	}
+
+	dev_dbg(dev, "dram pbase=%pa, dramsize=%#x\n",
+		&adsp->pa_dram, adsp->dramsize);
+
+	/* Parse CFG base */
+	mmio = platform_get_resource_byname(pdev, IORESOURCE_MEM, "cfg");
+	if (!mmio) {
+		dev_err(dev, "no ADSP-CFG register resource\n");
+		return -ENXIO;
+	}
+	/* remap for DSP register accessing */
+	adsp->va_cfgreg = devm_ioremap_resource(dev, mmio);
+	if (IS_ERR(adsp->va_cfgreg))
+		return PTR_ERR(adsp->va_cfgreg);
+
+	adsp->pa_cfgreg = (phys_addr_t)mmio->start;
+	adsp->cfgregsize = resource_size(mmio);
+
+	dev_dbg(dev, "cfgreg-vbase=%p, cfgregsize=%#x\n",
+		adsp->va_cfgreg, adsp->cfgregsize);
+
+	/* Parse SRAM */
+	mmio = platform_get_resource_byname(pdev, IORESOURCE_MEM, "sram");
+	if (!mmio) {
+		dev_err(dev, "no SRAM resource\n");
+		return -ENXIO;
+	}
+
+	adsp->pa_sram = (phys_addr_t)mmio->start;
+	adsp->sramsize = resource_size(mmio);
+	if (adsp->sramsize < TOTAL_SIZE_SHARED_SRAM_FROM_TAIL) {
+		dev_err(dev, "adsp SRAM(%#x) is not enough for share\n",
+			adsp->sramsize);
+		return -EINVAL;
+	}
+
+	dev_dbg(dev, "sram pbase=%pa,%#x\n", &adsp->pa_sram, adsp->sramsize);
+
+	return ret;
+}
+
+static int adsp_sram_power_on(struct device *dev, bool on)
+{
+	void __iomem *va_dspsysreg;
+	u32 srampool_con;
+
+	va_dspsysreg = ioremap(ADSP_SRAM_POOL_CON, 0x4);
+	if (!va_dspsysreg) {
+		dev_err(dev, "failed to ioremap sram pool base %#x\n",
+			ADSP_SRAM_POOL_CON);
+		return -ENOMEM;
+	}
+
+	srampool_con = readl(va_dspsysreg);
+	if (on)
+		writel(srampool_con & ~DSP_SRAM_POOL_PD_MASK, va_dspsysreg);
+	else
+		writel(srampool_con | DSP_SRAM_POOL_PD_MASK, va_dspsysreg);
+
+	iounmap(va_dspsysreg);
+	return 0;
+}
+
+/*  Init the basic DSP DRAM address */
+static int adsp_memory_remap_init(struct device *dev, struct mtk_adsp_chip_info *adsp)
+{
+	void __iomem *vaddr_emi_map;
+	int offset;
+
+	if (!adsp)
+		return -ENXIO;
+
+	vaddr_emi_map = devm_ioremap(dev, DSP_EMI_MAP_ADDR, 0x4);
+	if (!vaddr_emi_map) {
+		dev_err(dev, "failed to ioremap emi map base %#x\n",
+			DSP_EMI_MAP_ADDR);
+		return -ENOMEM;
+	}
+
+	offset = adsp->pa_dram - DRAM_PHYS_BASE_FROM_DSP_VIEW;
+	adsp->dram_offset = offset;
+	offset >>= DRAM_REMAP_SHIFT;
+	dev_dbg(dev, "adsp->pa_dram %llx, offset %#x\n", adsp->pa_dram, offset);
+	writel(offset, vaddr_emi_map);
+	if (offset != readl(vaddr_emi_map)) {
+		dev_err(dev, "write emi map fail : %#x\n", readl(vaddr_emi_map));
+		return -EIO;
+	}
+
+	return 0;
+}
+
+static int adsp_shared_base_ioremap(struct platform_device *pdev, void *data)
+{
+	struct device *dev = &pdev->dev;
+	struct mtk_adsp_chip_info *adsp = data;
+	u32 shared_size;
+
+	/* remap shared-dram base to be non-cachable */
+	shared_size = TOTAL_SIZE_SHARED_DRAM_FROM_TAIL;
+	adsp->pa_shared_dram = adsp->pa_dram + adsp->dramsize - shared_size;
+	if (adsp->va_dram) {
+		adsp->shared_dram = adsp->va_dram + DSP_DRAM_SIZE - shared_size;
+	} else {
+		adsp->shared_dram = devm_ioremap(dev, adsp->pa_shared_dram,
+						 shared_size);
+		if (!adsp->shared_dram) {
+			dev_err(dev, "ioremap failed for shared DRAM\n");
+			return -ENOMEM;
+		}
+	}
+	dev_dbg(dev, "shared-dram vbase=%p, phy addr :%llx,  size=%#x\n",
+		adsp->shared_dram, adsp->pa_shared_dram, shared_size);
+
+	return 0;
+}
+
+static int mt8195_run(struct snd_sof_dev *sdev)
+{
+	u32 adsp_bootup_addr;
+
+	adsp_bootup_addr = SRAM_PHYS_BASE_FROM_DSP_VIEW;
+	dev_dbg(sdev->dev, "HIFIxDSP boot from base : 0x%08X\n", adsp_bootup_addr);
+	sof_hifixdsp_boot_sequence(sdev, adsp_bootup_addr);
+
+	return 0;
+}
+
+static int mt8195_dsp_probe(struct snd_sof_dev *sdev)
+{
+	struct platform_device *pdev = container_of(sdev->dev, struct platform_device, dev);
+	struct adsp_priv *priv;
+	int ret;
+
+	priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	sdev->pdata->hw_pdata = priv;
+	priv->dev = sdev->dev;
+	priv->sdev = sdev;
+
+	priv->adsp = devm_kzalloc(&pdev->dev, sizeof(struct mtk_adsp_chip_info), GFP_KERNEL);
+	if (!priv->adsp)
+		return -ENOMEM;
+
+	ret = platform_parse_resource(pdev, priv->adsp);
+	if (ret)
+		return ret;
+
+	ret = mt8195_adsp_init_clock(sdev);
+	if (ret) {
+		dev_err(sdev->dev, "mt8195_adsp_init_clock failed\n");
+		return -EINVAL;
+	}
+
+	ret = adsp_clock_on(sdev);
+	if (ret) {
+		dev_err(sdev->dev, "adsp_clock_on fail!\n");
+		return -EINVAL;
+	}
+
+	ret = adsp_sram_power_on(sdev->dev, true);
+	if (ret) {
+		dev_err(sdev->dev, "adsp_sram_power_on fail!\n");
+		goto exit_clk_disable;
+	}
+
+	ret = adsp_memory_remap_init(&pdev->dev, priv->adsp);
+	if (ret) {
+		dev_err(sdev->dev, "adsp_memory_remap_init fail!\n");
+		goto err_adsp_sram_power_off;
+	}
+
+	sdev->bar[SOF_FW_BLK_TYPE_IRAM] = devm_ioremap(sdev->dev,
+						       priv->adsp->pa_sram,
+						       priv->adsp->sramsize);
+	if (!sdev->bar[SOF_FW_BLK_TYPE_IRAM]) {
+		dev_err(sdev->dev, "failed to ioremap base %pa size %#x\n",
+			&priv->adsp->pa_sram, priv->adsp->sramsize);
+		ret = -EINVAL;
+		goto err_adsp_sram_power_off;
+	}
+
+	sdev->bar[SOF_FW_BLK_TYPE_SRAM] = devm_ioremap_wc(sdev->dev,
+							  priv->adsp->pa_dram,
+							  priv->adsp->dramsize);
+	if (!sdev->bar[SOF_FW_BLK_TYPE_SRAM]) {
+		dev_err(sdev->dev, "failed to ioremap base %pa size %#x\n",
+			&priv->adsp->pa_dram, priv->adsp->dramsize);
+		ret = -EINVAL;
+		goto err_adsp_sram_power_off;
+	}
+	priv->adsp->va_dram = sdev->bar[SOF_FW_BLK_TYPE_SRAM];
+
+	ret = adsp_shared_base_ioremap(pdev, priv->adsp);
+	if (ret) {
+		dev_err(sdev->dev, "adsp_shared_base_ioremap fail!\n");
+		goto err_adsp_sram_power_off;
+	}
+
+	sdev->bar[DSP_REG_BAR] = priv->adsp->va_cfgreg;
+	sdev->bar[DSP_MBOX0_BAR] =  priv->adsp->va_mboxreg[0];
+	sdev->bar[DSP_MBOX1_BAR] =  priv->adsp->va_mboxreg[1];
+	sdev->bar[DSP_MBOX2_BAR] =  priv->adsp->va_mboxreg[2];
+
+	sdev->mmio_bar = SOF_FW_BLK_TYPE_SRAM;
+	sdev->mailbox_bar = SOF_FW_BLK_TYPE_SRAM;
+
+	return 0;
+
+err_adsp_sram_power_off:
+	adsp_sram_power_on(&pdev->dev, false);
+exit_clk_disable:
+	adsp_clock_off(sdev);
+
+	return ret;
+}
+
+static int mt8195_dsp_remove(struct snd_sof_dev *sdev)
+{
+	struct platform_device *pdev = container_of(sdev->dev, struct platform_device, dev);
+
+	adsp_sram_power_on(&pdev->dev, false);
+	adsp_clock_off(sdev);
+
+	return 0;
+}
+
+static int mt8195_dsp_suspend(struct snd_sof_dev *sdev, u32 target_state)
+{
+	struct platform_device *pdev = container_of(sdev->dev, struct platform_device, dev);
+	int ret;
+
+	/* stall and reset dsp */
+	sof_hifixdsp_shutdown(sdev);
+
+	/* power down adsp sram */
+	ret = adsp_sram_power_on(&pdev->dev, false);
+	if (ret) {
+		dev_err(sdev->dev, "adsp_sram_power_off fail!\n");
+		return ret;
+	}
+
+	/* turn off adsp clock */
+	return adsp_clock_off(sdev);
+}
+
+static int mt8195_dsp_resume(struct snd_sof_dev *sdev)
+{
+	int ret;
+
+	/* turn on adsp clock */
+	ret = adsp_clock_on(sdev);
+	if (ret) {
+		dev_err(sdev->dev, "adsp_clock_on fail!\n");
+		return ret;
+	}
+
+	/* power on adsp sram */
+	ret = adsp_sram_power_on(sdev->dev, true);
+	if (ret)
+		dev_err(sdev->dev, "adsp_sram_power_on fail!\n");
+
+	return ret;
+}
+
+/* on mt8195 there is 1 to 1 match between type and BAR idx */
+static int mt8195_get_bar_index(struct snd_sof_dev *sdev, u32 type)
+{
+	return type;
+}
+
+static struct snd_soc_dai_driver mt8195_dai[] = {
+{
+	.name = "SOF_DL2",
+	.playback = {
+		.channels_min = 1,
+		.channels_max = 2,
+	},
+},
+{
+	.name = "SOF_DL3",
+	.playback = {
+		.channels_min = 1,
+		.channels_max = 2,
+	},
+},
+{
+	.name = "SOF_UL4",
+	.capture = {
+		.channels_min = 1,
+		.channels_max = 2,
+	},
+},
+{
+	.name = "SOF_UL5",
+	.capture = {
+		.channels_min = 1,
+		.channels_max = 2,
+	},
+},
+};
+
+/* mt8195 ops */
+const struct snd_sof_dsp_ops sof_mt8195_ops = {
+	/* probe and remove */
+	.probe		= mt8195_dsp_probe,
+	.remove		= mt8195_dsp_remove,
+
+	/* DSP core boot */
+	.run		= mt8195_run,
+
+	/* Block IO */
+	.block_read	= sof_block_read,
+	.block_write	= sof_block_write,
+
+	/* Register IO */
+	.write		= sof_io_write,
+	.read		= sof_io_read,
+	.write64	= sof_io_write64,
+	.read64		= sof_io_read64,
+
+	/* misc */
+	.get_bar_index	= mt8195_get_bar_index,
+
+	/* module loading */
+	.load_module	= snd_sof_parse_module_memcpy,
+	/* firmware loading */
+	.load_firmware	= snd_sof_load_firmware_memcpy,
+
+	/* Firmware ops */
+	.dsp_arch_ops = &sof_xtensa_arch_ops,
+
+	/* DAI drivers */
+	.drv = mt8195_dai,
+	.num_drv = ARRAY_SIZE(mt8195_dai),
+
+	/* PM */
+	.suspend	= mt8195_dsp_suspend,
+	.resume		= mt8195_dsp_resume,
+
+	/* ALSA HW info flags */
+	.hw_info =	SNDRV_PCM_INFO_MMAP |
+			SNDRV_PCM_INFO_MMAP_VALID |
+			SNDRV_PCM_INFO_INTERLEAVED |
+			SNDRV_PCM_INFO_PAUSE |
+			SNDRV_PCM_INFO_NO_PERIOD_WAKEUP,
+};
+EXPORT_SYMBOL(sof_mt8195_ops);
+
+MODULE_IMPORT_NS(SND_SOC_SOF_XTENSA);
+MODULE_LICENSE("Dual BSD/GPL");

sound/soc/sof/mediatek/mt8195/mt8195.h

+/* SPDX-License-Identifier: GPL-2.0 */
+
+/*
+ * Copyright (c) 2021 MediaTek Corporation. All rights reserved.
+ *
+ *  Header file for the mt8195 DSP register definition
+ */
+
+#ifndef __MT8195_H
+#define __MT8195_H
+
+struct mtk_adsp_chip_info;
+struct snd_sof_dev;
+
+#define DSP_REG_BASE			0x10803000
+#define SCP_CFGREG_BASE			0x10724000
+#define DSP_SYSAO_BASE			0x1080C000
+
+/*****************************************************************************
+ *                  R E G I S T E R       TABLE
+ *****************************************************************************/
+#define DSP_JTAGMUX			0x0000
+#define DSP_ALTRESETVEC			0x0004
+#define DSP_PDEBUGDATA			0x0008
+#define DSP_PDEBUGBUS0			0x000c
+#define PDEBUG_ENABLE			BIT(0)
+#define DSP_PDEBUGBUS1			0x0010
+#define DSP_PDEBUGINST			0x0014
+#define DSP_PDEBUGLS0STAT		0x0018
+#define DSP_PDEBUGLS1STAT		0x001c
+#define DSP_PDEBUGPC			0x0020
+#define DSP_RESET_SW			0x0024 /*reset sw*/
+#define ADSP_BRESET_SW			BIT(0)
+#define ADSP_DRESET_SW			BIT(1)
+#define ADSP_RUNSTALL			BIT(3)
+#define STATVECTOR_SEL			BIT(4)
+#define DSP_PFAULTBUS			0x0028
+#define DSP_PFAULTINFO			0x002c
+#define DSP_GPR00			0x0030
+#define DSP_GPR01			0x0034
+#define DSP_GPR02			0x0038
+#define DSP_GPR03			0x003c
+#define DSP_GPR04			0x0040
+#define DSP_GPR05			0x0044
+#define DSP_GPR06			0x0048
+#define DSP_GPR07			0x004c
+#define DSP_GPR08			0x0050
+#define DSP_GPR09			0x0054
+#define DSP_GPR0A			0x0058
+#define DSP_GPR0B			0x005c
+#define DSP_GPR0C			0x0060
+#define DSP_GPR0D			0x0064
+#define DSP_GPR0E			0x0068
+#define DSP_GPR0F			0x006c
+#define DSP_GPR10			0x0070
+#define DSP_GPR11			0x0074
+#define DSP_GPR12			0x0078
+#define DSP_GPR13			0x007c
+#define DSP_GPR14			0x0080
+#define DSP_GPR15			0x0084
+#define DSP_GPR16			0x0088
+#define DSP_GPR17			0x008c
+#define DSP_GPR18			0x0090
+#define DSP_GPR19			0x0094
+#define DSP_GPR1A			0x0098
+#define DSP_GPR1B			0x009c
+#define DSP_GPR1C			0x00a0
+#define DSP_GPR1D			0x00a4
+#define DSP_GPR1E			0x00a8
+#define DSP_GPR1F			0x00ac
+#define DSP_TCM_OFFSET			0x00b0    /* not used */
+#define DSP_DDR_OFFSET			0x00b4    /* not used */
+#define DSP_INTFDSP			0x00d0
+#define DSP_INTFDSP_CLR			0x00d4
+#define DSP_SRAM_PD_SW1			0x00d8
+#define DSP_SRAM_PD_SW2			0x00dc
+#define DSP_OCD				0x00e0
+#define DSP_RG_DSP_IRQ_POL		0x00f0    /* not used */
+#define DSP_DSP_IRQ_EN			0x00f4    /* not used */
+#define DSP_DSP_IRQ_LEVEL		0x00f8    /* not used */
+#define DSP_DSP_IRQ_STATUS		0x00fc    /* not used */
+#define DSP_RG_INT2CIRQ			0x0114
+#define DSP_RG_INT_POL_CTL0		0x0120
+#define DSP_RG_INT_EN_CTL0		0x0130
+#define DSP_RG_INT_LV_CTL0		0x0140
+#define DSP_RG_INT_STATUS0		0x0150
+#define DSP_PDEBUGSTATUS0		0x0200
+#define DSP_PDEBUGSTATUS1		0x0204
+#define DSP_PDEBUGSTATUS2		0x0208
+#define DSP_PDEBUGSTATUS3		0x020c
+#define DSP_PDEBUGSTATUS4		0x0210
+#define DSP_PDEBUGSTATUS5		0x0214
+#define DSP_PDEBUGSTATUS6		0x0218
+#define DSP_PDEBUGSTATUS7		0x021c
+#define DSP_DSP2PSRAM_PRIORITY		0x0220  /* not used */
+#define DSP_AUDIO_DSP2SPM_INT		0x0224
+#define DSP_AUDIO_DSP2SPM_INT_ACK	0x0228
+#define DSP_AUDIO_DSP_DEBUG_SEL		0x022C
+#define DSP_AUDIO_DSP_EMI_BASE_ADDR	0x02E0  /* not used */
+#define DSP_AUDIO_DSP_SHARED_IRAM	0x02E4
+#define DSP_AUDIO_DSP_CKCTRL_P2P_CK_CON	0x02F0
+#define DSP_RG_SEMAPHORE00		0x0300
+#define DSP_RG_SEMAPHORE01		0x0304
+#define DSP_RG_SEMAPHORE02		0x0308
+#define DSP_RG_SEMAPHORE03		0x030C
+#define DSP_RG_SEMAPHORE04		0x0310
+#define DSP_RG_SEMAPHORE05		0x0314
+#define DSP_RG_SEMAPHORE06		0x0318
+#define DSP_RG_SEMAPHORE07		0x031C
+#define DSP_RESERVED_0			0x03F0
+#define DSP_RESERVED_1			0x03F4
+
+/* dsp wdt */
+#define DSP_WDT_MODE			0x0400
+
+/* dsp mbox */
+#define DSP_MBOX_IN_CMD			0x00
+#define DSP_MBOX_IN_CMD_CLR		0x04
+#define DSP_MBOX_OUT_CMD		0x1c
+#define DSP_MBOX_OUT_CMD_CLR		0x20
+#define DSP_MBOX_IN_MSG0		0x08
+#define DSP_MBOX_IN_MSG1		0x0C
+#define DSP_MBOX_OUT_MSG0		0x24
+#define DSP_MBOX_OUT_MSG1		0x28
+
+/*dsp sys ao*/
+#define ADSP_SRAM_POOL_CON		(DSP_SYSAO_BASE + 0x30)
+#define DSP_SRAM_POOL_PD_MASK		0xf
+#define DSP_EMI_MAP_ADDR		(DSP_SYSAO_BASE + 0x81c)
+
+/* DSP memories */
+#define MBOX_OFFSET	0x800000 /* DRAM */
+#define MBOX_SIZE	0x1000 /* consistent with which in memory.h of sof fw */
+#define DSP_DRAM_SIZE	0x1000000 /* 16M */
+
+#define DSP_REG_BAR	4
+#define DSP_MBOX0_BAR	5
+#define DSP_MBOX1_BAR	6
+#define DSP_MBOX2_BAR	7
+
+#define TOTAL_SIZE_SHARED_SRAM_FROM_TAIL  0x0
+
+#define SIZE_SHARED_DRAM_DL 0x40000 /*Shared buffer for Downlink*/
+#define SIZE_SHARED_DRAM_UL 0x40000 /*Shared buffer for Uplink*/
+
+#define TOTAL_SIZE_SHARED_DRAM_FROM_TAIL  \
+	(SIZE_SHARED_DRAM_DL + SIZE_SHARED_DRAM_UL)
+
+#define SRAM_PHYS_BASE_FROM_DSP_VIEW	0x40000000 /* MT8195 DSP view */
+#define DRAM_PHYS_BASE_FROM_DSP_VIEW	0x60000000 /* MT8195 DSP view */
+
+/*remap dram between AP and DSP view, 4KB aligned*/
+#define DRAM_REMAP_SHIFT	12
+#define DRAM_REMAP_MASK		(BIT(DRAM_REMAP_SHIFT) - 1)
+
+void sof_hifixdsp_boot_sequence(struct snd_sof_dev *sdev, u32 boot_addr);
+void sof_hifixdsp_shutdown(struct snd_sof_dev *sdev);
+#endif

sound/soc/sof/pcm.c

@@ -808,6 +808,18 @@ int sof_pcm_dai_link_fixup(struct snd_soc_pcm_runtime *rtd, struct snd_pcm_hw_pa
 		channels->min = dai->dai_config->esai.tdm_slots;
 		channels->max = dai->dai_config->esai.tdm_slots;
 
+		dev_dbg(component->dev,
+			"rate_min: %d rate_max: %d\n", rate->min, rate->max);
+		dev_dbg(component->dev,
+			"channels_min: %d channels_max: %d\n",
+			channels->min, channels->max);
+		break;
+	case SOF_DAI_MEDIATEK_AFE:
+		rate->min = dai->dai_config->afe.rate;
+		rate->max = dai->dai_config->afe.rate;
+		channels->min = dai->dai_config->afe.channels;
+		channels->max = dai->dai_config->afe.channels;
+
 		dev_dbg(component->dev,
 			"rate_min: %d rate_max: %d\n", rate->min, rate->max);
 		dev_dbg(component->dev,

sound/soc/sof/sof-of-dev.c

@@ -13,6 +13,7 @@
 
 #include "ops.h"
 #include "imx/imx-ops.h"
+#include "mediatek/mediatek-ops.h"
 
 static char *fw_path;
 module_param(fw_path, charp, 0444);
@@ -50,6 +51,15 @@ static struct sof_dev_desc sof_of_imx8mp_desc = {
 	.ops = &sof_imx8m_ops,
 };
 #endif
+#if IS_ENABLED(CONFIG_SND_SOC_SOF_MT8195)
+static const struct sof_dev_desc sof_of_mt8195_desc = {
+	.default_fw_path = "mediatek/sof",
+	.default_tplg_path = "mediatek/sof-tplg",
+	.default_fw_filename = "sof-mt8195.ri",
+	.nocodec_tplg_filename = "sof-mt8195-nocodec.tplg",
+	.ops = &sof_mt8195_ops,
+};
+#endif
 
 static const struct dev_pm_ops sof_of_pm = {
 	.prepare = snd_sof_prepare,
@@ -130,6 +140,9 @@ static const struct of_device_id sof_of_ids[] = {
 #endif
 #if IS_ENABLED(CONFIG_SND_SOC_SOF_IMX8M)
 	{ .compatible = "fsl,imx8mp-dsp", .data = &sof_of_imx8mp_desc},
+#endif
+#if IS_ENABLED(CONFIG_SND_SOC_SOF_MT8195)
+	{ .compatible = "mediatek,mt8195-dsp", .data = &sof_of_mt8195_desc},
 #endif
 	{ }
 };

sound/soc/sof/topology.c

@@ -379,6 +379,7 @@ static const struct sof_dai_types sof_dais[] = {
 	{"ACP", SOF_DAI_AMD_BT},
 	{"ACPSP", SOF_DAI_AMD_SP},
 	{"ACPDMIC", SOF_DAI_AMD_DMIC},
+	{"AFE", SOF_DAI_MEDIATEK_AFE},
 };
 
 static enum sof_ipc_dai_type find_dai(const char *name)
@@ -806,6 +807,19 @@ static const struct sof_topology_token led_tokens[] = {
 	 get_token_u32, offsetof(struct snd_sof_led_control, direction), 0},
 };
 
+/* AFE */
+static const struct sof_topology_token afe_tokens[] = {
+	{SOF_TKN_MEDIATEK_AFE_RATE,
+		SND_SOC_TPLG_TUPLE_TYPE_WORD, get_token_u32,
+		offsetof(struct sof_ipc_dai_mtk_afe_params, rate), 0},
+	{SOF_TKN_MEDIATEK_AFE_CH,
+		SND_SOC_TPLG_TUPLE_TYPE_WORD, get_token_u32,
+		offsetof(struct sof_ipc_dai_mtk_afe_params, channels), 0},
+	{SOF_TKN_MEDIATEK_AFE_FORMAT,
+		SND_SOC_TPLG_TUPLE_TYPE_STRING, get_token_comp_format,
+		offsetof(struct sof_ipc_dai_mtk_afe_params, format), 0},
+};
+
 static int sof_parse_uuid_tokens(struct snd_soc_component *scomp,
 				 void *object,
 				 const struct sof_topology_token *tokens,
@@ -3091,6 +3105,48 @@ static int sof_link_acp_sp_load(struct snd_soc_component *scomp, int index,
 	return ret;
 }
 
+static int sof_link_afe_load(struct snd_soc_component *scomp, int index,
+			     struct snd_soc_dai_link *link,
+			     struct snd_soc_tplg_link_config *cfg,
+			     struct snd_soc_tplg_hw_config *hw_config,
+			     struct sof_ipc_dai_config *config)
+{
+	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
+	struct snd_soc_tplg_private *private = &cfg->priv;
+	struct snd_soc_dai *dai;
+	u32 size = sizeof(*config);
+	int ret;
+
+	config->hdr.size = size;
+
+	/* get any bespoke DAI tokens */
+	ret = sof_parse_tokens(scomp, &config->afe, afe_tokens,
+			       ARRAY_SIZE(afe_tokens), private->array,
+			       le32_to_cpu(private->size));
+	if (ret != 0) {
+		dev_err(scomp->dev, "parse afe tokens failed %d\n",
+			le32_to_cpu(private->size));
+		return ret;
+	}
+
+	dev_dbg(scomp->dev, "AFE config rate %d channels %d format:%d\n",
+		config->afe.rate, config->afe.channels, config->afe.format);
+
+	dai = snd_soc_find_dai(link->cpus);
+	if (!dai) {
+		dev_err(scomp->dev, "%s: failed to find dai %s", __func__, link->cpus->dai_name);
+		return -EINVAL;
+	}
+
+	config->afe.stream_id = DMA_CHAN_INVALID;
+
+	ret = sof_set_dai_config(sdev, size, link, config);
+	if (ret < 0)
+		dev_err(scomp->dev, "failed to process afe dai link %s", link->name);
+
+	return ret;
+}
+
 static int sof_link_dmic_load(struct snd_soc_component *scomp, int index,
 			      struct snd_soc_dai_link *link,
 			      struct snd_soc_tplg_link_config *cfg,
@@ -3386,6 +3442,9 @@ static int sof_link_load(struct snd_soc_component *scomp, int index,
 		ret = sof_link_acp_dmic_load(scomp, index, link, cfg, hw_config + curr_conf,
 					     config);
 		break;
+	case SOF_DAI_MEDIATEK_AFE:
+		ret = sof_link_afe_load(scomp, index, link, cfg, hw_config + curr_conf, config);
+		break;
 	default:
 		dev_err(scomp->dev, "error: invalid DAI type %d\n", common_config.type);
 		ret = -EINVAL;