@@ -32,4 +32,13 @@ config SND_SOC_SOF_IMX8
Say Y if you have such a device.
If unsure select "N".
+config SND_SOC_SOF_IMX9
+ tristate "SOF support for i.MX9"
+ depends on IMX_DSP
+ select SND_SOC_SOF_IMX_COMMON
+ help
+ This adds support for Sound Open Firmware for NXP i.MX9 platforms.
+ Say Y if you need such a device.
+ If unsure select "N".
+
endif ## SND_SOC_SOF_IMX_TOPLEVEL
@@ -1,7 +1,9 @@
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
snd-sof-imx8-y := imx8.o
+snd-sof-imx9-y := imx9.o
snd-sof-imx-common-y := imx-common.o
obj-$(CONFIG_SND_SOC_SOF_IMX8) += snd-sof-imx8.o
+obj-$(CONFIG_SND_SOC_SOF_IMX9) += snd-sof-imx9.o
obj-$(CONFIG_SND_SOC_SOF_IMX_COMMON) += imx-common.o
new file mode 100644
@@ -0,0 +1,135 @@
+// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
+/*
+ * Copyright 2025 NXP
+ */
+
+#include <linux/arm-smccc.h>
+
+#include "imx-common.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
+
+static struct snd_soc_dai_driver imx95_dai[] = {
+ IMX_SOF_DAI_DRV_ENTRY_BIDIR("sai3", 1, 32),
+};
+
+static struct snd_sof_dsp_ops sof_imx9_ops;
+
+static int imx95_ops_init(struct snd_sof_dev *sdev)
+{
+ /* first copy from template */
+ memcpy(&sof_imx9_ops, &sof_imx_ops, sizeof(sof_imx_ops));
+
+ /* ... and finally set DAI driver */
+ sof_imx9_ops.drv = imx95_dai;
+ sof_imx9_ops.num_drv = ARRAY_SIZE(imx95_dai);
+
+ return 0;
+}
+
+static int imx95_chip_probe(struct snd_sof_dev *sdev)
+{
+ struct resource *res;
+ struct arm_smccc_res smc_res;
+ struct platform_device *pdev;
+
+ pdev = to_platform_device(sdev->dev);
+
+ res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "sram");
+ if (!res)
+ return dev_err_probe(sdev->dev, -ENODEV,
+ "failed to fetch SRAM region\n");
+
+ /* set core boot reset address */
+ arm_smccc_smc(IMX_SIP_SRC, IMX_SIP_SRC_M_RESET_ADDR_SET, res->start,
+ IMX95_CPU_VEC_FLAGS_BOOT, 0, 0, 0, 0, &smc_res);
+
+ return smc_res.a0;
+}
+
+static int imx95_core_kick(struct snd_sof_dev *sdev)
+{
+ struct arm_smccc_res smc_res;
+
+ arm_smccc_smc(IMX_SIP_LMM, IMX_SIP_LMM_BOOT,
+ IMX95_M7_LM_ID, 0, 0, 0, 0, 0, &smc_res);
+
+ return smc_res.a0;
+}
+
+static int imx95_core_shutdown(struct snd_sof_dev *sdev)
+{
+ struct arm_smccc_res smc_res;
+
+ arm_smccc_smc(IMX_SIP_LMM, IMX_SIP_LMM_SHUTDOWN,
+ IMX95_M7_LM_ID, 0, 0, 0, 0, 0, &smc_res);
+
+ return smc_res.a0;
+}
+
+static const struct imx_chip_ops imx95_chip_ops = {
+ .probe = imx95_chip_probe,
+ .core_kick = imx95_core_kick,
+ .core_shutdown = imx95_core_shutdown,
+};
+
+static struct imx_memory_info imx95_memory_regions[] = {
+ { .name = "sram", .reserved = false },
+ { }
+};
+
+static const struct imx_chip_info imx95_chip_info = {
+ .ipc_info = {
+ .boot_mbox_offset = 0x6001000,
+ .window_offset = 0x6000000,
+ },
+ .has_dma_reserved = true,
+ .memory = imx95_memory_regions,
+ .ops = &imx95_chip_ops,
+};
+
+static struct snd_sof_of_mach sof_imx9_machs[] = {
+ {
+ .compatible = "fsl,imx95-19x19-evk",
+ .sof_tplg_filename = "sof-imx95-wm8962.tplg",
+ .drv_name = "asoc-audio-graph-card2",
+ },
+ {
+ }
+};
+
+IMX_SOF_DEV_DESC(imx95, sof_imx9_machs, &imx95_chip_info, &sof_imx9_ops, imx95_ops_init);
+
+static const struct of_device_id sof_of_imx9_ids[] = {
+ {
+ .compatible = "fsl,imx95-cm7-sof",
+ .data = &IMX_SOF_DEV_DESC_NAME(imx95),
+ },
+ {
+ },
+};
+MODULE_DEVICE_TABLE(of, sof_of_imx9_ids);
+
+static struct platform_driver snd_sof_of_imx9_driver = {
+ .probe = sof_of_probe,
+ .remove = sof_of_remove,
+ .driver = {
+ .name = "sof-audio-of-imx9",
+ .pm = &sof_of_pm,
+ .of_match_table = sof_of_imx9_ids,
+ },
+};
+module_platform_driver(snd_sof_of_imx9_driver);
+
+MODULE_LICENSE("Dual BSD/GPL");
+MODULE_DESCRIPTION("SOF driver for imx9 platforms");
+MODULE_AUTHOR("Laurentiu Mihalcea <laurentiu.mihalcea@nxp.com>");