diff options
Diffstat (limited to 'sound/soc/sof/imx/imx8m.c')
| -rw-r--r-- | sound/soc/sof/imx/imx8m.c | 519 |
1 files changed, 0 insertions, 519 deletions
diff --git a/sound/soc/sof/imx/imx8m.c b/sound/soc/sof/imx/imx8m.c deleted file mode 100644 index ff42743efa79..000000000000 --- a/sound/soc/sof/imx/imx8m.c +++ /dev/null @@ -1,519 +0,0 @@ -// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) -// -// Copyright 2020 NXP -// -// Author: Daniel Baluta <daniel.baluta@nxp.com> -// -// Hardware interface for audio DSP on i.MX8M - -#include <linux/bits.h> -#include <linux/firmware.h> -#include <linux/mfd/syscon.h> -#include <linux/of_platform.h> -#include <linux/of_address.h> -#include <linux/of_irq.h> -#include <linux/regmap.h> - -#include <linux/module.h> -#include <sound/sof.h> -#include <sound/sof/xtensa.h> -#include <linux/firmware/imx/dsp.h> - -#include "../ops.h" -#include "../sof-of-dev.h" -#include "imx-common.h" - -#define MBOX_OFFSET 0x800000 -#define MBOX_SIZE 0x1000 - -/* DAP registers */ -#define IMX8M_DAP_DEBUG 0x28800000 -#define IMX8M_DAP_DEBUG_SIZE (64 * 1024) -#define IMX8M_DAP_PWRCTL (0x4000 + 0x3020) -#define IMX8M_PWRCTL_CORERESET BIT(16) - -/* DSP audio mix registers */ -#define AudioDSP_REG0 0x100 -#define AudioDSP_REG1 0x104 -#define AudioDSP_REG2 0x108 -#define AudioDSP_REG3 0x10c - -#define AudioDSP_REG2_RUNSTALL BIT(5) - -struct imx8m_priv { - struct device *dev; - struct snd_sof_dev *sdev; - - /* DSP IPC handler */ - struct imx_dsp_ipc *dsp_ipc; - struct platform_device *ipc_dev; - - struct clk_bulk_data *clks; - int clk_num; - - void __iomem *dap; - struct regmap *regmap; -}; - -static int imx8m_get_mailbox_offset(struct snd_sof_dev *sdev) -{ - return MBOX_OFFSET; -} - -static int imx8m_get_window_offset(struct snd_sof_dev *sdev, u32 id) -{ - return MBOX_OFFSET; -} - -static void imx8m_dsp_handle_reply(struct imx_dsp_ipc *ipc) -{ - struct imx8m_priv *priv = imx_dsp_get_data(ipc); - unsigned long flags; - - spin_lock_irqsave(&priv->sdev->ipc_lock, flags); - snd_sof_ipc_process_reply(priv->sdev, 0); - spin_unlock_irqrestore(&priv->sdev->ipc_lock, flags); -} - -static void imx8m_dsp_handle_request(struct imx_dsp_ipc *ipc) -{ - struct imx8m_priv *priv = imx_dsp_get_data(ipc); - u32 p; /* Panic code */ - - /* Read the message from the debug box. */ - sof_mailbox_read(priv->sdev, priv->sdev->debug_box.offset + 4, &p, sizeof(p)); - - /* Check to see if the message is a panic code (0x0dead***) */ - if ((p & SOF_IPC_PANIC_MAGIC_MASK) == SOF_IPC_PANIC_MAGIC) - snd_sof_dsp_panic(priv->sdev, p, true); - else - snd_sof_ipc_msgs_rx(priv->sdev); -} - -static struct imx_dsp_ops imx8m_dsp_ops = { - .handle_reply = imx8m_dsp_handle_reply, - .handle_request = imx8m_dsp_handle_request, -}; - -static int imx8m_send_msg(struct snd_sof_dev *sdev, struct snd_sof_ipc_msg *msg) -{ - struct imx8m_priv *priv = sdev->pdata->hw_pdata; - - sof_mailbox_write(sdev, sdev->host_box.offset, msg->msg_data, - msg->msg_size); - imx_dsp_ring_doorbell(priv->dsp_ipc, 0); - - return 0; -} - -/* - * DSP control. - */ -static int imx8m_run(struct snd_sof_dev *sdev) -{ - struct imx8m_priv *priv = (struct imx8m_priv *)sdev->pdata->hw_pdata; - - regmap_update_bits(priv->regmap, AudioDSP_REG2, AudioDSP_REG2_RUNSTALL, 0); - - return 0; -} - -static int imx8m_reset(struct snd_sof_dev *sdev) -{ - struct imx8m_priv *priv = (struct imx8m_priv *)sdev->pdata->hw_pdata; - u32 pwrctl; - - /* put DSP into reset and stall */ - pwrctl = readl(priv->dap + IMX8M_DAP_PWRCTL); - pwrctl |= IMX8M_PWRCTL_CORERESET; - writel(pwrctl, priv->dap + IMX8M_DAP_PWRCTL); - - /* keep reset asserted for 10 cycles */ - usleep_range(1, 2); - - regmap_update_bits(priv->regmap, AudioDSP_REG2, - AudioDSP_REG2_RUNSTALL, AudioDSP_REG2_RUNSTALL); - - /* take the DSP out of reset and keep stalled for FW loading */ - pwrctl = readl(priv->dap + IMX8M_DAP_PWRCTL); - pwrctl &= ~IMX8M_PWRCTL_CORERESET; - writel(pwrctl, priv->dap + IMX8M_DAP_PWRCTL); - - return 0; -} - -static int imx8m_probe(struct snd_sof_dev *sdev) -{ - struct platform_device *pdev = - container_of(sdev->dev, struct platform_device, dev); - struct device_node *np = pdev->dev.of_node; - struct device_node *res_node; - struct resource *mmio; - struct imx8m_priv *priv; - struct resource res; - u32 base, size; - int ret = 0; - - priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL); - if (!priv) - return -ENOMEM; - - sdev->num_cores = 1; - sdev->pdata->hw_pdata = priv; - priv->dev = sdev->dev; - priv->sdev = sdev; - - priv->ipc_dev = platform_device_register_data(sdev->dev, "imx-dsp", - PLATFORM_DEVID_NONE, - pdev, sizeof(*pdev)); - if (IS_ERR(priv->ipc_dev)) - return PTR_ERR(priv->ipc_dev); - - priv->dsp_ipc = dev_get_drvdata(&priv->ipc_dev->dev); - if (!priv->dsp_ipc) { - /* DSP IPC driver not probed yet, try later */ - ret = -EPROBE_DEFER; - dev_err(sdev->dev, "Failed to get drvdata\n"); - goto exit_pdev_unregister; - } - - imx_dsp_set_data(priv->dsp_ipc, priv); - priv->dsp_ipc->ops = &imx8m_dsp_ops; - - /* DSP base */ - mmio = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (mmio) { - base = mmio->start; - size = resource_size(mmio); - } else { - dev_err(sdev->dev, "error: failed to get DSP base at idx 0\n"); - ret = -EINVAL; - goto exit_pdev_unregister; - } - - priv->dap = devm_ioremap(sdev->dev, IMX8M_DAP_DEBUG, IMX8M_DAP_DEBUG_SIZE); - if (!priv->dap) { - dev_err(sdev->dev, "error: failed to map DAP debug memory area"); - ret = -ENODEV; - goto exit_pdev_unregister; - } - - sdev->bar[SOF_FW_BLK_TYPE_IRAM] = devm_ioremap(sdev->dev, base, size); - if (!sdev->bar[SOF_FW_BLK_TYPE_IRAM]) { - dev_err(sdev->dev, "failed to ioremap base 0x%x size 0x%x\n", - base, size); - ret = -ENODEV; - goto exit_pdev_unregister; - } - sdev->mmio_bar = SOF_FW_BLK_TYPE_IRAM; - - res_node = of_parse_phandle(np, "memory-region", 0); - if (!res_node) { - dev_err(&pdev->dev, "failed to get memory region node\n"); - ret = -ENODEV; - goto exit_pdev_unregister; - } - - ret = of_address_to_resource(res_node, 0, &res); - of_node_put(res_node); - if (ret) { - dev_err(&pdev->dev, "failed to get reserved region address\n"); - goto exit_pdev_unregister; - } - - sdev->bar[SOF_FW_BLK_TYPE_SRAM] = devm_ioremap_wc(sdev->dev, res.start, - resource_size(&res)); - if (!sdev->bar[SOF_FW_BLK_TYPE_SRAM]) { - dev_err(sdev->dev, "failed to ioremap mem 0x%x size 0x%x\n", - base, size); - ret = -ENOMEM; - goto exit_pdev_unregister; - } - sdev->mailbox_bar = SOF_FW_BLK_TYPE_SRAM; - - /* set default mailbox offset for FW ready message */ - sdev->dsp_box.offset = MBOX_OFFSET; - - priv->regmap = syscon_regmap_lookup_by_phandle(np, "fsl,dsp-ctrl"); - if (IS_ERR(priv->regmap)) { - dev_err(sdev->dev, "cannot find dsp-ctrl registers"); - ret = PTR_ERR(priv->regmap); - goto exit_pdev_unregister; - } - - ret = devm_clk_bulk_get_all(sdev->dev, &priv->clks); - if (ret < 0) { - dev_err(sdev->dev, "failed to fetch clocks: %d\n", ret); - goto exit_pdev_unregister; - } - priv->clk_num = ret; - - ret = clk_bulk_prepare_enable(priv->clk_num, priv->clks); - if (ret < 0) { - dev_err(sdev->dev, "failed to enable clocks: %d\n", ret); - goto exit_pdev_unregister; - } - - return 0; - -exit_pdev_unregister: - platform_device_unregister(priv->ipc_dev); - return ret; -} - -static void imx8m_remove(struct snd_sof_dev *sdev) -{ - struct imx8m_priv *priv = sdev->pdata->hw_pdata; - - clk_bulk_disable_unprepare(priv->clk_num, priv->clks); - platform_device_unregister(priv->ipc_dev); -} - -/* on i.MX8 there is 1 to 1 match between type and BAR idx */ -static int imx8m_get_bar_index(struct snd_sof_dev *sdev, u32 type) -{ - /* Only IRAM and SRAM bars are valid */ - switch (type) { - case SOF_FW_BLK_TYPE_IRAM: - case SOF_FW_BLK_TYPE_SRAM: - return type; - default: - return -EINVAL; - } -} - -static struct snd_soc_dai_driver imx8m_dai[] = { -{ - .name = "sai1", - .playback = { - .channels_min = 1, - .channels_max = 32, - }, - .capture = { - .channels_min = 1, - .channels_max = 32, - }, -}, -{ - .name = "sai3", - .playback = { - .channels_min = 1, - .channels_max = 32, - }, - .capture = { - .channels_min = 1, - .channels_max = 32, - }, -}, -{ - .name = "micfil", - .capture = { - .channels_min = 1, - .channels_max = 8, - }, -}, -}; - -static int imx8m_dsp_set_power_state(struct snd_sof_dev *sdev, - const struct sof_dsp_power_state *target_state) -{ - sdev->dsp_power_state = *target_state; - - return 0; -} - -static int imx8m_resume(struct snd_sof_dev *sdev) -{ - struct imx8m_priv *priv = (struct imx8m_priv *)sdev->pdata->hw_pdata; - int ret; - int i; - - ret = clk_bulk_prepare_enable(priv->clk_num, priv->clks); - if (ret < 0) { - dev_err(sdev->dev, "failed to enable clocks: %d\n", ret); - return ret; - } - - for (i = 0; i < DSP_MU_CHAN_NUM; i++) - imx_dsp_request_channel(priv->dsp_ipc, i); - - return 0; -} - -static void imx8m_suspend(struct snd_sof_dev *sdev) -{ - struct imx8m_priv *priv = (struct imx8m_priv *)sdev->pdata->hw_pdata; - int i; - - for (i = 0; i < DSP_MU_CHAN_NUM; i++) - imx_dsp_free_channel(priv->dsp_ipc, i); - - clk_bulk_disable_unprepare(priv->clk_num, priv->clks); -} - -static int imx8m_dsp_runtime_resume(struct snd_sof_dev *sdev) -{ - int ret; - const struct sof_dsp_power_state target_dsp_state = { - .state = SOF_DSP_PM_D0, - }; - - ret = imx8m_resume(sdev); - if (ret < 0) - return ret; - - return snd_sof_dsp_set_power_state(sdev, &target_dsp_state); -} - -static int imx8m_dsp_runtime_suspend(struct snd_sof_dev *sdev) -{ - const struct sof_dsp_power_state target_dsp_state = { - .state = SOF_DSP_PM_D3, - }; - - imx8m_suspend(sdev); - - return snd_sof_dsp_set_power_state(sdev, &target_dsp_state); -} - -static int imx8m_dsp_resume(struct snd_sof_dev *sdev) -{ - int ret; - const struct sof_dsp_power_state target_dsp_state = { - .state = SOF_DSP_PM_D0, - }; - - ret = imx8m_resume(sdev); - if (ret < 0) - return ret; - - if (pm_runtime_suspended(sdev->dev)) { - pm_runtime_disable(sdev->dev); - pm_runtime_set_active(sdev->dev); - pm_runtime_mark_last_busy(sdev->dev); - pm_runtime_enable(sdev->dev); - pm_runtime_idle(sdev->dev); - } - - return snd_sof_dsp_set_power_state(sdev, &target_dsp_state); -} - -static int imx8m_dsp_suspend(struct snd_sof_dev *sdev, unsigned int target_state) -{ - const struct sof_dsp_power_state target_dsp_state = { - .state = target_state, - }; - - if (!pm_runtime_suspended(sdev->dev)) - imx8m_suspend(sdev); - - return snd_sof_dsp_set_power_state(sdev, &target_dsp_state); -} - -/* i.MX8 ops */ -static const struct snd_sof_dsp_ops sof_imx8m_ops = { - /* probe and remove */ - .probe = imx8m_probe, - .remove = imx8m_remove, - /* DSP core boot */ - .run = imx8m_run, - .reset = imx8m_reset, - - /* Block IO */ - .block_read = sof_block_read, - .block_write = sof_block_write, - - /* Mailbox IO */ - .mailbox_read = sof_mailbox_read, - .mailbox_write = sof_mailbox_write, - - /* ipc */ - .send_msg = imx8m_send_msg, - .get_mailbox_offset = imx8m_get_mailbox_offset, - .get_window_offset = imx8m_get_window_offset, - - .ipc_msg_data = sof_ipc_msg_data, - .set_stream_data_offset = sof_set_stream_data_offset, - - .get_bar_index = imx8m_get_bar_index, - - /* firmware loading */ - .load_firmware = snd_sof_load_firmware_memcpy, - - /* Debug information */ - .dbg_dump = imx8_dump, - .debugfs_add_region_item = snd_sof_debugfs_add_region_item_iomem, - - /* stream callbacks */ - .pcm_open = sof_stream_pcm_open, - .pcm_close = sof_stream_pcm_close, - /* Firmware ops */ - .dsp_arch_ops = &sof_xtensa_arch_ops, - - /* DAI drivers */ - .drv = imx8m_dai, - .num_drv = ARRAY_SIZE(imx8m_dai), - - .suspend = imx8m_dsp_suspend, - .resume = imx8m_dsp_resume, - - .runtime_suspend = imx8m_dsp_runtime_suspend, - .runtime_resume = imx8m_dsp_runtime_resume, - - .set_power_state = imx8m_dsp_set_power_state, - - .hw_info = SNDRV_PCM_INFO_MMAP | - SNDRV_PCM_INFO_MMAP_VALID | - SNDRV_PCM_INFO_INTERLEAVED | - SNDRV_PCM_INFO_PAUSE | - SNDRV_PCM_INFO_BATCH | - SNDRV_PCM_INFO_NO_PERIOD_WAKEUP, -}; - -static struct snd_sof_of_mach sof_imx8mp_machs[] = { - { - .compatible = "fsl,imx8mp-evk", - .sof_tplg_filename = "sof-imx8mp-wm8960.tplg", - .drv_name = "asoc-audio-graph-card2", - }, - {} -}; - -static struct sof_dev_desc sof_of_imx8mp_desc = { - .of_machines = sof_imx8mp_machs, - .ipc_supported_mask = BIT(SOF_IPC_TYPE_3), - .ipc_default = SOF_IPC_TYPE_3, - .default_fw_path = { - [SOF_IPC_TYPE_3] = "imx/sof", - }, - .default_tplg_path = { - [SOF_IPC_TYPE_3] = "imx/sof-tplg", - }, - .default_fw_filename = { - [SOF_IPC_TYPE_3] = "sof-imx8m.ri", - }, - .nocodec_tplg_filename = "sof-imx8-nocodec.tplg", - .ops = &sof_imx8m_ops, -}; - -static const struct of_device_id sof_of_imx8m_ids[] = { - { .compatible = "fsl,imx8mp-dsp", .data = &sof_of_imx8mp_desc}, - { } -}; -MODULE_DEVICE_TABLE(of, sof_of_imx8m_ids); - -/* DT driver definition */ -static struct platform_driver snd_sof_of_imx8m_driver = { - .probe = sof_of_probe, - .remove = sof_of_remove, - .driver = { - .name = "sof-audio-of-imx8m", - .pm = &sof_of_pm, - .of_match_table = sof_of_imx8m_ids, - }, -}; -module_platform_driver(snd_sof_of_imx8m_driver); - -MODULE_LICENSE("Dual BSD/GPL"); -MODULE_DESCRIPTION("SOF support for IMX8M platforms"); -MODULE_IMPORT_NS("SND_SOC_SOF_XTENSA"); |