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Mon, 16 Dec 2024 06:51:21 -0800 (PST) From: Laurentiu Mihalcea To: Rob Herring , Krzysztof Kozlowski , Shawn Guo , Daniel Baluta , Mark Brown , Kuninori Morimoto , Takashi Iwai , Bard Liao , Peter Ujfalusi , Jaroslav Kysela , Frank Li Cc: linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-sound@vger.kernel.org, imx@lists.linux.dev, linux-kernel@vger.kernel.org Subject: [PATCH v3 4/5] ASoC: SOF: imx: add driver for imx95 Date: Mon, 16 Dec 2024 09:50:38 -0500 Message-Id: <20241216145039.3074-5-laurentiumihalcea111@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20241216145039.3074-1-laurentiumihalcea111@gmail.com> References: <20241216145039.3074-1-laurentiumihalcea111@gmail.com> Precedence: bulk X-Mailing-List: linux-sound@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Laurentiu Mihalcea Add SOF driver for imx95. Signed-off-by: Laurentiu Mihalcea --- sound/soc/sof/imx/Kconfig | 8 + sound/soc/sof/imx/Makefile | 2 + sound/soc/sof/imx/imx95.c | 401 +++++++++++++++++++++++++++++++++++++ 3 files changed, 411 insertions(+) create mode 100644 sound/soc/sof/imx/imx95.c diff --git a/sound/soc/sof/imx/Kconfig b/sound/soc/sof/imx/Kconfig index 4751b04d5e6f..51a70a193533 100644 --- a/sound/soc/sof/imx/Kconfig +++ b/sound/soc/sof/imx/Kconfig @@ -50,4 +50,12 @@ config SND_SOC_SOF_IMX8ULP Say Y if you have such a device. If unsure select "N". +config SND_SOC_SOF_IMX95 + tristate "SOF support for i.MX95" + depends on IMX_DSP + help + This adds support for Sound Open Firmware for NXP i.MX95 platforms. + Say Y if you have such a device. + If unsure select "N". + endif ## SND_SOC_SOF_IMX_TOPLEVEL diff --git a/sound/soc/sof/imx/Makefile b/sound/soc/sof/imx/Makefile index be0bf0736dfa..715ac3798668 100644 --- a/sound/soc/sof/imx/Makefile +++ b/sound/soc/sof/imx/Makefile @@ -2,10 +2,12 @@ snd-sof-imx8-y := imx8.o snd-sof-imx8m-y := imx8m.o snd-sof-imx8ulp-y := imx8ulp.o +snd-sof-imx95-y := imx95.o snd-sof-imx-common-y := imx-common.o obj-$(CONFIG_SND_SOC_SOF_IMX8) += snd-sof-imx8.o obj-$(CONFIG_SND_SOC_SOF_IMX8M) += snd-sof-imx8m.o obj-$(CONFIG_SND_SOC_SOF_IMX8ULP) += snd-sof-imx8ulp.o +obj-$(CONFIG_SND_SOC_SOF_IMX95) += snd-sof-imx95.o obj-$(CONFIG_SND_SOC_SOF_IMX_COMMON) += imx-common.o diff --git a/sound/soc/sof/imx/imx95.c b/sound/soc/sof/imx/imx95.c new file mode 100644 index 000000000000..5a0e44f5bd48 --- /dev/null +++ b/sound/soc/sof/imx/imx95.c @@ -0,0 +1,401 @@ +// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) +/* + * Copyright 2024 NXP + */ + +#include +#include +#include +#include +#include +#include +#include + +#include "../sof-of-dev.h" +#include "../ops.h" + +#define IMX_SIP_SRC 0xC2000005 +#define IMX_SIP_SRC_M_RESET_ADDR_SET 0x03 + +#define IMX95_CPU_VEC_FLAGS_BOOT BIT(29) + +#define IMX_SIP_LMM 0xC200000F +#define IMX_SIP_LMM_BOOT 0x0 +#define IMX_SIP_LMM_SHUTDOWN 0x1 + +#define IMX95_M7_LM_ID 0x1 + +#define MBOX_DSPBOX_OFFSET 0x1000 +#define MBOX_WINDOW_OFFSET 0x6000000 + +struct imx95_priv { + struct platform_device *ipc_dev; + struct imx_dsp_ipc *ipc_handle; + resource_size_t bootaddr; +}; + +static void imx95_ipc_handle_reply(struct imx_dsp_ipc *ipc) +{ + unsigned long flags; + struct snd_sof_dev *sdev = imx_dsp_get_data(ipc); + + spin_lock_irqsave(&sdev->ipc_lock, flags); + snd_sof_ipc_process_reply(sdev, 0); + spin_unlock_irqrestore(&sdev->ipc_lock, flags); +} + +static void imx95_ipc_handle_request(struct imx_dsp_ipc *ipc) +{ + snd_sof_ipc_msgs_rx(imx_dsp_get_data(ipc)); +} + +static struct imx_dsp_ops ipc_ops = { + .handle_reply = imx95_ipc_handle_reply, + .handle_request = imx95_ipc_handle_request, +}; + +static int imx95_disable_enable_core(bool enable) +{ + struct arm_smccc_res res; + + if (enable) + arm_smccc_smc(IMX_SIP_LMM, IMX_SIP_LMM_BOOT, IMX95_M7_LM_ID, + 0, 0, 0, 0, 0, &res); + else + arm_smccc_smc(IMX_SIP_LMM, IMX_SIP_LMM_SHUTDOWN, IMX95_M7_LM_ID, + 0, 0, 0, 0, 0, &res); + + return res.a0; +} + +static int imx95_run(struct snd_sof_dev *sdev) +{ + return imx95_disable_enable_core(true); +} + +static int imx95_send_msg(struct snd_sof_dev *sdev, struct snd_sof_ipc_msg *msg) +{ + struct imx95_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->ipc_handle, 0); + + return 0; +} + +static int imx95_get_mailbox_offset(struct snd_sof_dev *sdev) +{ + return MBOX_DSPBOX_OFFSET + MBOX_WINDOW_OFFSET; +} + +static int imx95_get_bar_index(struct snd_sof_dev *sdev, u32 type) +{ + switch (type) { + case SOF_FW_BLK_TYPE_SRAM: + return type; + default: + return -EINVAL; + } +} + +static int imx95_get_window_offset(struct snd_sof_dev *sdev, u32 id) +{ + return MBOX_WINDOW_OFFSET; +} + +static int imx95_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 imx95_suspend_resume(struct snd_sof_dev *sdev, bool suspend) +{ + struct imx95_priv *priv; + int ret, i; + + priv = sdev->pdata->hw_pdata; + + if (suspend) { + ret = imx95_disable_enable_core(false); + if (ret) { + dev_err(sdev->dev, "failed to stop core\n"); + return ret; + } + } + + for (i = 0; i < DSP_MU_CHAN_NUM; i++) { + if (suspend) + imx_dsp_free_channel(priv->ipc_handle, i); + else + imx_dsp_request_channel(priv->ipc_handle, i); + } + + return 0; +} + +static int imx95_runtime_resume(struct snd_sof_dev *sdev) +{ + int ret; + const struct sof_dsp_power_state target_state = { + .state = SOF_DSP_PM_D0, + }; + + ret = imx95_suspend_resume(sdev, false); + if (ret < 0) { + dev_err(sdev->dev, "failed to runtime resume: %d\n", ret); + return ret; + } + + return snd_sof_dsp_set_power_state(sdev, &target_state); +} + +static int imx95_resume(struct snd_sof_dev *sdev) +{ + int ret; + const struct sof_dsp_power_state target_state = { + .state = SOF_DSP_PM_D0, + }; + + ret = imx95_suspend_resume(sdev, false); + if (ret < 0) { + dev_err(sdev->dev, "failed to resume: %d\n", ret); + 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_state); +} + +static int imx95_runtime_suspend(struct snd_sof_dev *sdev) +{ + int ret; + const struct sof_dsp_power_state target_state = { + .state = SOF_DSP_PM_D3, + }; + + ret = imx95_suspend_resume(sdev, true); + if (ret < 0) { + dev_err(sdev->dev, "failed to runtime suspend: %d\n", ret); + return ret; + } + + return snd_sof_dsp_set_power_state(sdev, &target_state); +} + +static int imx95_suspend(struct snd_sof_dev *sdev, unsigned int target_state) +{ + int ret; + const struct sof_dsp_power_state target_power_state = { + .state = target_state, + }; + + if (!pm_runtime_suspended(sdev->dev)) { + ret = imx95_suspend_resume(sdev, true); + if (ret < 0) { + dev_err(sdev->dev, "failed to suspend: %d\n", ret); + return ret; + } + } + + return snd_sof_dsp_set_power_state(sdev, &target_power_state); +} + +static struct snd_soc_dai_driver imx95_dai[] = { + { + .name = "sai3", + .playback = { + .channels_min = 1, + .channels_max = 32, + }, + .capture = { + .channels_min = 1, + .channels_max = 32, + }, + }, +}; + +static int imx95_probe(struct snd_sof_dev *sdev) +{ + struct platform_device *pdev; + struct imx95_priv *priv; + struct resource *res; + struct arm_smccc_res smc_ret; + int ret; + + pdev = container_of(sdev->dev, struct platform_device, dev); + + priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL); + if (!priv) + return dev_err_probe(&pdev->dev, -ENOMEM, "failed to alloc priv\n"); + + sdev->pdata->hw_pdata = priv; + + /* map SRAM */ + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!res) + return dev_err_probe(&pdev->dev, -ENODEV, + "failed to fetch SRAM region\n"); + + sdev->bar[SOF_FW_BLK_TYPE_SRAM] = devm_ioremap(&pdev->dev, res->start, + resource_size(res)); + if (IS_ERR(sdev->bar[SOF_FW_BLK_TYPE_SRAM])) + return dev_err_probe(&pdev->dev, + PTR_ERR(sdev->bar[SOF_FW_BLK_TYPE_SRAM]), + "failed to map SRAM region\n"); + + sdev->mmio_bar = SOF_FW_BLK_TYPE_SRAM; + sdev->mailbox_bar = SOF_FW_BLK_TYPE_SRAM; + sdev->dsp_box.offset = MBOX_DSPBOX_OFFSET + MBOX_WINDOW_OFFSET; + priv->bootaddr = res->start; + + ret = of_reserved_mem_device_init(sdev->dev); + if (ret) + return dev_err_probe(&pdev->dev, ret, + "failed to bind DMA region\n"); + + priv->ipc_dev = platform_device_register_data(&pdev->dev, "imx-dsp", + PLATFORM_DEVID_NONE, + pdev, sizeof(*pdev)); + if (IS_ERR(priv->ipc_dev)) + return dev_err_probe(&pdev->dev, PTR_ERR(priv->ipc_dev), + "failed to create IPC device\n"); + + priv->ipc_handle = dev_get_drvdata(&priv->ipc_dev->dev); + if (!priv->ipc_handle) { + ret = -EPROBE_DEFER; + dev_err(&pdev->dev, "failed to fetch ipc handle\n"); + goto err_unregister_ipc_dev; + } + + priv->ipc_handle->ops = &ipc_ops; + imx_dsp_set_data(priv->ipc_handle, sdev); + + /* set core boot reset address */ + arm_smccc_smc(IMX_SIP_SRC, IMX_SIP_SRC_M_RESET_ADDR_SET, priv->bootaddr, + IMX95_CPU_VEC_FLAGS_BOOT, 0, 0, 0, 0, &smc_ret); + if ((int)smc_ret.a0 < 0) { + ret = smc_ret.a0; + dev_err(&pdev->dev, "failed to set boot address: %d", ret); + goto err_unregister_ipc_dev; + } + + return 0; + +err_unregister_ipc_dev: + platform_device_unregister(priv->ipc_dev); + + return ret; +} + +static void imx95_remove(struct snd_sof_dev *sdev) +{ + struct imx95_priv *priv; + + priv = sdev->pdata->hw_pdata; + + if (imx95_disable_enable_core(false)) + dev_err(sdev->dev, "failed to stop core\n"); + + platform_device_unregister(priv->ipc_dev); +} + +static const struct snd_sof_dsp_ops sof_imx95_ops = { + .probe = imx95_probe, + .remove = imx95_remove, + + /* mandatory "DSP" ops */ + .run = imx95_run, + .block_read = sof_block_read, + .block_write = sof_block_write, + .send_msg = imx95_send_msg, + .load_firmware = snd_sof_load_firmware_memcpy, + .ipc_msg_data = sof_ipc_msg_data, + + .mailbox_read = sof_mailbox_read, + .mailbox_write = sof_mailbox_write, + + .get_mailbox_offset = imx95_get_mailbox_offset, + .get_bar_index = imx95_get_bar_index, + .get_window_offset = imx95_get_window_offset, + + .pcm_open = sof_stream_pcm_open, + .pcm_close = sof_stream_pcm_close, + .set_stream_data_offset = sof_set_stream_data_offset, + + .runtime_suspend = imx95_runtime_suspend, + .runtime_resume = imx95_runtime_resume, + + .resume = imx95_resume, + .suspend = imx95_suspend, + + .set_power_state = imx95_set_power_state, + + .drv = imx95_dai, + .num_drv = ARRAY_SIZE(imx95_dai), + + .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_imx95_machs[] = { + { + .compatible = "fsl,imx95-19x19-evk", + .sof_tplg_filename = "sof-imx95-wm8962.tplg", + .drv_name = "asoc-audio-graph-card2", + }, + { + }, +}; + +static struct sof_dev_desc sof_of_imx95_desc = { + .of_machines = sof_imx95_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-imx95.ri", + }, + .ops = &sof_imx95_ops, +}; + +static const struct of_device_id sof_of_imx95_ids[] = { + { .compatible = "fsl,imx95-cm7-sof", .data = &sof_of_imx95_desc }, + { }, +}; +MODULE_DEVICE_TABLE(of, sof_of_imx95_ids); + +static struct platform_driver snd_sof_of_imx95_driver = { + .probe = sof_of_probe, + .remove = sof_of_remove, + .driver = { + .name = "sof-audio-of-imx95", + .pm = &sof_of_pm, + .of_match_table = sof_of_imx95_ids, + }, +}; +module_platform_driver(snd_sof_of_imx95_driver); + +MODULE_LICENSE("Dual BSD/GPL"); +MODULE_DESCRIPTION("SOF support for i.MX95 platforms"); +MODULE_AUTHOR("Laurentiu Mihalcea ");