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94000534e0
Linux supports NXP's LMM SCMI protocol so switch to using the appropriate API. The SIPs were intended to act as placeholders until the support for said protocol was upstreamed. The underlying CPU protocol command from IMX_SIP_SRC_M_RESET_ADDR_SET is replaced by a LMM protocol command with the same effect (i.e. setting the boot address) since using the CPU protocol would require additional permissions (which TF-A already had). Apart from this, the SIPs are replaced by their equivalent Linux LMM commands. Signed-off-by: Laurentiu Mihalcea <laurentiu.mihalcea@nxp.com> Reviewed-by: Iuliana Prodan <iuliana.prodan@nxp.com> Link: https://patch.msgid.link/20251114143503.2139-1-laurentiumihalcea111@gmail.com Signed-off-by: Mark Brown <broonie@kernel.org>
118 lines
2.7 KiB
C
118 lines
2.7 KiB
C
// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
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/*
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* Copyright 2025 NXP
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*/
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#include <linux/firmware/imx/sm.h>
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#include "imx-common.h"
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#define IMX95_M7_CPU_ID 0x1
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#define IMX95_M7_LM_ID 0x1
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static struct snd_soc_dai_driver imx95_dai[] = {
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IMX_SOF_DAI_DRV_ENTRY_BIDIR("sai3", 1, 32),
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};
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static struct snd_sof_dsp_ops sof_imx9_ops;
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static int imx95_ops_init(struct snd_sof_dev *sdev)
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{
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/* first copy from template */
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memcpy(&sof_imx9_ops, &sof_imx_ops, sizeof(sof_imx_ops));
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/* ... and finally set DAI driver */
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sof_imx9_ops.drv = get_chip_info(sdev)->drv;
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sof_imx9_ops.num_drv = get_chip_info(sdev)->num_drv;
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return 0;
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}
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static int imx95_chip_probe(struct snd_sof_dev *sdev)
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{
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struct platform_device *pdev;
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struct resource *res;
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pdev = to_platform_device(sdev->dev);
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res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "sram");
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if (!res)
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return dev_err_probe(sdev->dev, -ENODEV,
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"failed to fetch SRAM region\n");
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return scmi_imx_lmm_reset_vector_set(IMX95_M7_LM_ID, IMX95_M7_CPU_ID,
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0, res->start);
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}
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static int imx95_core_kick(struct snd_sof_dev *sdev)
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{
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return scmi_imx_lmm_operation(IMX95_M7_LM_ID, SCMI_IMX_LMM_BOOT, 0);
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}
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static int imx95_core_shutdown(struct snd_sof_dev *sdev)
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{
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return scmi_imx_lmm_operation(IMX95_M7_LM_ID,
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SCMI_IMX_LMM_SHUTDOWN,
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SCMI_IMX_LMM_OP_FORCEFUL);
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}
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static const struct imx_chip_ops imx95_chip_ops = {
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.probe = imx95_chip_probe,
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.core_kick = imx95_core_kick,
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.core_shutdown = imx95_core_shutdown,
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};
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static struct imx_memory_info imx95_memory_regions[] = {
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{ .name = "sram", .reserved = false },
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{ }
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};
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static const struct imx_chip_info imx95_chip_info = {
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.ipc_info = {
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.boot_mbox_offset = 0x6001000,
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.window_offset = 0x6000000,
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},
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.has_dma_reserved = true,
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.memory = imx95_memory_regions,
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.drv = imx95_dai,
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.num_drv = ARRAY_SIZE(imx95_dai),
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.ops = &imx95_chip_ops,
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};
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static struct snd_sof_of_mach sof_imx9_machs[] = {
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{
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.compatible = "fsl,imx95-19x19-evk",
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.sof_tplg_filename = "sof-imx95-wm8962.tplg",
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.drv_name = "asoc-audio-graph-card2",
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},
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{
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}
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};
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IMX_SOF_DEV_DESC(imx95, sof_imx9_machs, &imx95_chip_info, &sof_imx9_ops, imx95_ops_init);
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static const struct of_device_id sof_of_imx9_ids[] = {
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{
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.compatible = "fsl,imx95-cm7-sof",
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.data = &IMX_SOF_DEV_DESC_NAME(imx95),
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},
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{
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},
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};
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MODULE_DEVICE_TABLE(of, sof_of_imx9_ids);
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static struct platform_driver snd_sof_of_imx9_driver = {
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.probe = sof_of_probe,
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.remove = sof_of_remove,
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.driver = {
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.name = "sof-audio-of-imx9",
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.pm = pm_ptr(&sof_of_pm),
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.of_match_table = sof_of_imx9_ids,
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},
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};
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module_platform_driver(snd_sof_of_imx9_driver);
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MODULE_LICENSE("Dual BSD/GPL");
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MODULE_DESCRIPTION("SOF driver for imx9 platforms");
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MODULE_AUTHOR("Laurentiu Mihalcea <laurentiu.mihalcea@nxp.com>");
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