--- /dev/null
+// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
+//
+// Copyright(c) 2022 Mediatek Inc. All rights reserved.
+//
+// Author: Allen-KH Cheng <allen-kh.cheng@mediatek.com>
+// Tinghan Shen <tinghan.shen@mediatek.com>
+
+/*
+ * Hardware interface for audio DSP on mt8186
+ */
+
+#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-of-dev.h"
+#include "../../sof-audio.h"
+#include "../adsp_helper.h"
+#include "mt8186.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);
+ of_node_put(mem_region);
+ if (ret) {
+ dev_err(dev, "of_address_to_resource dma failed\n");
+ return ret;
+ }
+
+ dev_dbg(dev, "DMA %pR\n", &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);
+ of_node_put(mem_region);
+ if (ret) {
+ dev_err(dev, "of_address_to_resource sysmem failed\n");
+ return ret;
+ }
+
+ adsp->pa_dram = (phys_addr_t)res.start;
+ if (adsp->pa_dram & DRAM_REMAP_MASK) {
+ dev_err(dev, "adsp memory(%#x) is not 4K-aligned\n",
+ (u32)adsp->pa_dram);
+ return -EINVAL;
+ }
+
+ adsp->dramsize = resource_size(&res);
+ 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 size=%#x\n", &adsp->pa_dram, adsp->dramsize);
+
+ mmio = platform_get_resource_byname(pdev, IORESOURCE_MEM, "cfg");
+ if (!mmio) {
+ dev_err(dev, "no ADSP-CFG register resource\n");
+ return -ENXIO;
+ }
+
+ 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 pbase=%pa size=%#x\n", &adsp->pa_cfgreg, adsp->cfgregsize);
+
+ 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);
+
+ dev_dbg(dev, "sram pbase=%pa size=%#x\n", &adsp->pa_sram, adsp->sramsize);
+
+ mmio = platform_get_resource_byname(pdev, IORESOURCE_MEM, "sec");
+ if (!mmio) {
+ dev_err(dev, "no SEC register resource\n");
+ return -ENXIO;
+ }
+
+ adsp->va_secreg = devm_ioremap_resource(dev, mmio);
+ if (IS_ERR(adsp->va_secreg))
+ return PTR_ERR(adsp->va_secreg);
+
+ adsp->pa_secreg = (phys_addr_t)mmio->start;
+ adsp->secregsize = resource_size(mmio);
+
+ dev_dbg(dev, "secreg pbase=%pa size=%#x\n", &adsp->pa_secreg, adsp->secregsize);
+
+ mmio = platform_get_resource_byname(pdev, IORESOURCE_MEM, "bus");
+ if (!mmio) {
+ dev_err(dev, "no BUS register resource\n");
+ return -ENXIO;
+ }
+
+ adsp->va_busreg = devm_ioremap_resource(dev, mmio);
+ if (IS_ERR(adsp->va_busreg))
+ return PTR_ERR(adsp->va_busreg);
+
+ adsp->pa_busreg = (phys_addr_t)mmio->start;
+ adsp->busregsize = resource_size(mmio);
+
+ dev_dbg(dev, "busreg pbase=%pa size=%#x\n", &adsp->pa_busreg, adsp->busregsize);
+
+ return 0;
+}
+
+static void adsp_sram_power_on(struct snd_sof_dev *sdev)
+{
+ snd_sof_dsp_update_bits(sdev, DSP_BUSREG_BAR, ADSP_SRAM_POOL_CON,
+ DSP_SRAM_POOL_PD_MASK, 0);
+}
+
+static void adsp_sram_power_off(struct snd_sof_dev *sdev)
+{
+ snd_sof_dsp_update_bits(sdev, DSP_BUSREG_BAR, ADSP_SRAM_POOL_CON,
+ DSP_SRAM_POOL_PD_MASK, DSP_SRAM_POOL_PD_MASK);
+}
+
+/* Init the basic DSP DRAM address */
+static int adsp_memory_remap_init(struct snd_sof_dev *sdev, struct mtk_adsp_chip_info *adsp)
+{
+ u32 offset;
+
+ offset = adsp->pa_dram - DRAM_PHYS_BASE_FROM_DSP_VIEW;
+ adsp->dram_offset = offset;
+ offset >>= DRAM_REMAP_SHIFT;
+
+ dev_dbg(sdev->dev, "adsp->pa_dram %pa, offset %#x\n", &adsp->pa_dram, offset);
+
+ snd_sof_dsp_write(sdev, DSP_BUSREG_BAR, DSP_C0_EMI_MAP_ADDR, offset);
+ snd_sof_dsp_write(sdev, DSP_BUSREG_BAR, DSP_C0_DMAEMI_MAP_ADDR, offset);
+
+ if (offset != snd_sof_dsp_read(sdev, DSP_BUSREG_BAR, DSP_C0_EMI_MAP_ADDR) ||
+ offset != snd_sof_dsp_read(sdev, DSP_BUSREG_BAR, DSP_C0_DMAEMI_MAP_ADDR)) {
+ dev_err(sdev->dev, "emi remap fail\n");
+ 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 :%pa, size=%#x\n",
+ adsp->shared_dram, &adsp->pa_shared_dram, shared_size);
+
+ return 0;
+}
+
+static int mt8186_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;
+
+ 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);
+ return -ENOMEM;
+ }
+
+ 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);
+ return -ENOMEM;
+ }
+
+ 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");
+ return ret;
+ }
+
+ sdev->bar[DSP_REG_BAR] = priv->adsp->va_cfgreg;
+ sdev->bar[DSP_SECREG_BAR] = priv->adsp->va_secreg;
+ sdev->bar[DSP_BUSREG_BAR] = priv->adsp->va_busreg;
+
+ sdev->mmio_bar = SOF_FW_BLK_TYPE_SRAM;
+ sdev->mailbox_bar = SOF_FW_BLK_TYPE_SRAM;
+
+ ret = adsp_memory_remap_init(sdev, priv->adsp);
+ if (ret) {
+ dev_err(sdev->dev, "adsp_memory_remap_init fail!\n");
+ return ret;
+ }
+
+ adsp_sram_power_on(sdev);
+
+ return 0;
+}
+
+static int mt8186_dsp_remove(struct snd_sof_dev *sdev)
+{
+ adsp_sram_power_off(sdev);
+
+ return 0;
+}
+
+/* on mt8186 there is 1 to 1 match between type and BAR idx */
+static int mt8186_get_bar_index(struct snd_sof_dev *sdev, u32 type)
+{
+ return type;
+}
+
+/* mt8186 ops */
+static struct snd_sof_dsp_ops sof_mt8186_ops = {
+ /* probe and remove */
+ .probe = mt8186_dsp_probe,
+ .remove = mt8186_dsp_remove,
+
+ /* 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 = mt8186_get_bar_index,
+
+ /* Firmware ops */
+ .dsp_arch_ops = &sof_xtensa_arch_ops,
+
+ /* 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,
+};
+
+static const struct sof_dev_desc sof_of_mt8186_desc = {
+ .ipc_supported_mask = BIT(SOF_IPC),
+ .ipc_default = SOF_IPC,
+ .default_fw_path = {
+ [SOF_IPC] = "mediatek/sof",
+ },
+ .default_tplg_path = {
+ [SOF_IPC] = "mediatek/sof-tplg",
+ },
+ .default_fw_filename = {
+ [SOF_IPC] = "sof-mt8186.ri",
+ },
+ .nocodec_tplg_filename = "sof-mt8186-nocodec.tplg",
+ .ops = &sof_mt8186_ops,
+};
+
+static const struct of_device_id sof_of_mt8186_ids[] = {
+ { .compatible = "mediatek,mt8186-dsp", .data = &sof_of_mt8186_desc},
+ { }
+};
+MODULE_DEVICE_TABLE(of, sof_of_mt8186_ids);
+
+/* DT driver definition */
+static struct platform_driver snd_sof_of_mt8186_driver = {
+ .probe = sof_of_probe,
+ .remove = sof_of_remove,
+ .driver = {
+ .name = "sof-audio-of-mt8186",
+ .pm = &sof_of_pm,
+ .of_match_table = sof_of_mt8186_ids,
+ },
+};
+module_platform_driver(snd_sof_of_mt8186_driver);
+
+MODULE_IMPORT_NS(SND_SOC_SOF_XTENSA);
+MODULE_IMPORT_NS(SND_SOC_SOF_MTK_COMMON);
+MODULE_LICENSE("Dual BSD/GPL");
--- /dev/null
+/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) */
+
+/*
+ * Copyright (c) 2022 MediaTek Corporation. All rights reserved.
+ *
+ * Header file for the mt8186 DSP register definition
+ */
+
+#ifndef __MT8186_H
+#define __MT8186_H
+
+struct mtk_adsp_chip_info;
+
+#define DSP_REG_BAR 4
+#define DSP_SECREG_BAR 5
+#define DSP_BUSREG_BAR 6
+
+/*****************************************************************************
+ * R E G I S T E R TABLE
+ *****************************************************************************/
+/* dsp cfg */
+#define ADSP_CFGREG_SW_RSTN 0x0000
+#define SW_DBG_RSTN_C0 BIT(0)
+#define SW_RSTN_C0 BIT(4)
+#define ADSP_HIFI_IO_CONFIG 0x000C
+#define TRACEMEMREADY BIT(15)
+#define RUNSTALL BIT(31)
+#define ADSP_IRQ_MASK 0x0030
+#define ADSP_DVFSRC_REQ 0x0040
+#define ADSP_DDREN_REQ_0 0x0044
+#define ADSP_SEMAPHORE 0x0064
+#define ADSP_WDT_CON_C0 0x007C
+#define ADSP_MBOX_IRQ_EN 0x009C
+#define DSP_MBOX0_IRQ_EN BIT(0)
+#define DSP_MBOX1_IRQ_EN BIT(1)
+#define DSP_MBOX2_IRQ_EN BIT(2)
+#define DSP_MBOX3_IRQ_EN BIT(3)
+#define DSP_MBOX4_IRQ_EN BIT(4)
+#define DSP_PDEBUGPC 0x013C
+#define ADSP_CK_EN 0x1000
+#define CORE_CLK_EN BIT(0)
+#define COREDBG_EN BIT(1)
+#define TIMER_EN BIT(3)
+#define DMA_EN BIT(4)
+#define UART_EN BIT(5)
+#define ADSP_UART_CTRL 0x1010
+#define UART_BCLK_CG BIT(0)
+#define UART_RSTN BIT(3)
+
+/* dsp sec */
+#define ADSP_PRID 0x0
+#define ADSP_ALTVEC_C0 0x04
+#define ADSP_ALTVECSEL 0x0C
+#define ADSP_ALTVECSEL_C0 BIT(1)
+
+/* dsp bus */
+#define ADSP_SRAM_POOL_CON 0x190
+#define DSP_SRAM_POOL_PD_MASK 0xF00F /* [0:3] and [12:15] */
+#define DSP_C0_EMI_MAP_ADDR 0xA00 /* ADSP Core0 To EMI Address Remap */
+#define DSP_C0_DMAEMI_MAP_ADDR 0xA08 /* DMA0 To EMI Address Remap */
+
+/* DSP memories */
+#define MBOX_OFFSET 0x500000 /* DRAM */
+#define MBOX_SIZE 0x1000 /* consistent with which in memory.h of sof fw */
+#define DSP_DRAM_SIZE 0xA00000 /* 16M */
+
+/*remap dram between AP and DSP view, 4KB aligned*/
+#define SRAM_PHYS_BASE_FROM_DSP_VIEW 0x4E100000 /* MT8186 DSP view */
+#define DRAM_PHYS_BASE_FROM_DSP_VIEW 0x60000000 /* MT8186 DSP view */
+#define DRAM_REMAP_SHIFT 12
+#define DRAM_REMAP_MASK 0xFFF
+
+#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)
+
+#endif
projects / platform / kernel / linux-starfive.git / commitdiff