diff --git a/drivers/remoteproc/Kconfig b/drivers/remoteproc/Kconfig
index a850e9f486dd..ff65b73d7e59 100644
--- a/drivers/remoteproc/Kconfig
+++ b/drivers/remoteproc/Kconfig
@@ -339,6 +339,19 @@ config TI_K3_DSP_REMOTEPROC
 	  It's safe to say N here if you're not interested in utilizing
 	  the DSP slave processors.
 
+config TI_K3_M4_REMOTEPROC
+	tristate "TI K3 M4 remoteproc support"
+	depends on ARCH_K3
+	select MAILBOX
+	select OMAP2PLUS_MBOX
+	help
+	  Say m here to support TI's M4 remote processor subsystems
+	  on various TI K3 family of SoCs through the remote processor
+	  framework.
+
+	  It's safe to say N here if you're not interested in utilizing
+	  a remote processor.
+
 config TI_K3_R5_REMOTEPROC
 	tristate "TI K3 R5 remoteproc support"
 	depends on ARCH_K3
diff --git a/drivers/remoteproc/Makefile b/drivers/remoteproc/Makefile
index 55c552e27a45..e30908ca4bfc 100644
--- a/drivers/remoteproc/Makefile
+++ b/drivers/remoteproc/Makefile
@@ -37,5 +37,6 @@ obj-$(CONFIG_ST_REMOTEPROC)		+= st_remoteproc.o
 obj-$(CONFIG_ST_SLIM_REMOTEPROC)	+= st_slim_rproc.o
 obj-$(CONFIG_STM32_RPROC)		+= stm32_rproc.o
 obj-$(CONFIG_TI_K3_DSP_REMOTEPROC)	+= ti_k3_dsp_remoteproc.o ti_k3_common.o
+obj-$(CONFIG_TI_K3_M4_REMOTEPROC)	+= ti_k3_m4_remoteproc.o ti_k3_common.o
 obj-$(CONFIG_TI_K3_R5_REMOTEPROC)	+= ti_k3_r5_remoteproc.o
 obj-$(CONFIG_XLNX_R5_REMOTEPROC)	+= xlnx_r5_remoteproc.o
diff --git a/drivers/remoteproc/ti_k3_common.h b/drivers/remoteproc/ti_k3_common.h
index 312df2ab3cd2..ed8ca5858492 100644
--- a/drivers/remoteproc/ti_k3_common.h
+++ b/drivers/remoteproc/ti_k3_common.h
@@ -2,11 +2,15 @@
 /*
  * TI K3 Remote Processor(s) driver common code
  *
- * Refactored from ti_k3_dsp_remoteproc.c.
+ * Refactored from ti_k3_dsp_remoteproc.c and ti_k3_m4_remoteproc.c.
  *
  * ti_k3_dsp_remoteproc.c:
  * Copyright (C) 2018-2022 Texas Instruments Incorporated - https://www.ti.com/
  *	Suman Anna <s-anna@ti.com>
+ *
+ * ti_k3_m4_remoteproc.c:
+ * Copyright (C) 2021 Texas Instruments Incorporated - https://www.ti.com/
+ *	Hari Nagalla <hnagalla@ti.com>
  */
 
 #ifndef REMOTEPROC_TI_K3_COMMON_H
@@ -83,6 +87,7 @@ struct k3_rproc {
 	u32 ti_sci_id;
 	struct mbox_chan *mbox;
 	struct mbox_client client;
+	bool ipc_only;
 };
 
 void k3_rproc_kick(struct rproc *rproc, int vqid);
diff --git a/drivers/remoteproc/ti_k3_m4_remoteproc.c b/drivers/remoteproc/ti_k3_m4_remoteproc.c
new file mode 100644
index 000000000000..8a55e42544af
--- /dev/null
+++ b/drivers/remoteproc/ti_k3_m4_remoteproc.c
@@ -0,0 +1,491 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * TI K3 Cortex-M4 Remote Processor(s) driver
+ *
+ * Copyright (C) 2021 Texas Instruments Incorporated - https://www.ti.com/
+ *	Hari Nagalla <hnagalla@ti.com>
+ */
+
+#include <linux/io.h>
+#include <linux/mailbox_client.h>
+#include <linux/module.h>
+#include <linux/of_device.h>
+#include <linux/of_reserved_mem.h>
+#include <linux/omap-mailbox.h>
+#include <linux/platform_device.h>
+#include <linux/remoteproc.h>
+#include <linux/reset.h>
+#include <linux/slab.h>
+
+#include "omap_remoteproc.h"
+#include "remoteproc_internal.h"
+#include "ti_sci_proc.h"
+#include "ti_k3_common.h"
+
+/**
+ * k3_m4_rproc_mbox_callback() - inbound mailbox message handler
+ * @client: mailbox client pointer used for requesting the mailbox channel
+ * @data: mailbox payload
+ *
+ * This handler is invoked by the OMAP mailbox driver whenever a mailbox
+ * message is received. Usually, the mailbox payload simply contains
+ * the index of the virtqueue that is kicked by the remote processor,
+ * and we let remoteproc core handle it.
+ *
+ * In addition to virtqueue indices, we also have some out-of-band values
+ * that indicate different events. Those values are deliberately very
+ * large so they don't coincide with virtqueue indices.
+ */
+static void k3_m4_rproc_mbox_callback(struct mbox_client *client, void *data)
+{
+	struct k3_rproc *kproc = container_of(client, struct k3_rproc,
+						  client);
+	struct device *dev = kproc->rproc->dev.parent;
+	const char *name = kproc->rproc->name;
+	u32 msg = omap_mbox_message(data);
+
+	dev_dbg(dev, "mbox msg: 0x%x\n", msg);
+
+	switch (msg) {
+	case RP_MBOX_CRASH:
+		/*
+		 * remoteproc detected an exception, but error recovery is not
+		 * supported. So, just log this for now
+		 */
+		dev_err(dev, "K3 M4 rproc %s crashed\n", name);
+		break;
+	case RP_MBOX_ECHO_REPLY:
+		dev_info(dev, "received echo reply from %s\n", name);
+		break;
+	default:
+		/* silently handle all other valid messages */
+		if (msg >= RP_MBOX_READY && msg < RP_MBOX_END_MSG)
+			return;
+		if (msg > kproc->rproc->max_notifyid) {
+			dev_dbg(dev, "dropping unknown message 0x%x", msg);
+			return;
+		}
+		/* msg contains the index of the triggered vring */
+		if (rproc_vq_interrupt(kproc->rproc, msg) == IRQ_NONE)
+			dev_dbg(dev, "no message was found in vqid %d\n", msg);
+	}
+}
+
+static int k3_m4_rproc_request_mbox(struct rproc *rproc)
+{
+	struct k3_rproc *kproc = rproc->priv;
+	struct mbox_client *client = &kproc->client;
+	struct device *dev = kproc->dev;
+	int ret;
+
+	client->dev = dev;
+	client->tx_done = NULL;
+	client->rx_callback = k3_m4_rproc_mbox_callback;
+	client->tx_block = false;
+	client->knows_txdone = false;
+
+	kproc->mbox = mbox_request_channel(client, 0);
+	if (IS_ERR(kproc->mbox)) {
+		ret = -EBUSY;
+		dev_err(dev, "mbox_request_channel failed: %ld\n",
+			PTR_ERR(kproc->mbox));
+		return ret;
+	}
+
+	/*
+	 * Ping the remote processor, this is only for sanity-sake for now;
+	 * there is no functional effect whatsoever.
+	 *
+	 * Note that the reply will _not_ arrive immediately: this message
+	 * will wait in the mailbox fifo until the remote processor is booted.
+	 */
+	ret = mbox_send_message(kproc->mbox, (void *)RP_MBOX_ECHO_REQUEST);
+	if (ret < 0) {
+		dev_err(dev, "mbox_send_message failed: %d\n", ret);
+		mbox_free_channel(kproc->mbox);
+		return ret;
+	}
+
+	return 0;
+}
+
+/*
+ * The M4F cores have a local reset that affects only the CPU, and a
+ * generic module reset that powers on the device and allows the M4 internal
+ * memories to be accessed while the local reset is asserted. This function is
+ * used to release the global reset on M4F to allow loading into the M4F
+ * internal RAMs. The .prepare() ops is invoked by remoteproc core before any
+ * firmware loading, and is followed by the .start() ops after loading to
+ * actually let the M4F core run.
+ */
+static int k3_m4_rproc_prepare(struct rproc *rproc)
+{
+	struct k3_rproc *kproc = rproc->priv;
+	struct device *dev = kproc->dev;
+	int ret;
+
+	/* IPC-only mode does not require the core to be released from reset */
+	if (kproc->ipc_only)
+		return 0;
+
+	ret = kproc->ti_sci->ops.dev_ops.get_device(kproc->ti_sci,
+						    kproc->ti_sci_id);
+	if (ret)
+		dev_err(dev, "module-reset deassert failed, cannot enable internal RAM loading, ret = %d\n",
+			ret);
+
+	return ret;
+}
+
+/*
+ * This function implements the .unprepare() ops and performs the complimentary
+ * operations to that of the .prepare() ops. The function is used to assert the
+ * global reset on applicable M4F cores. This completes the second portion of
+ * powering down the M4F cores. The cores themselves are only halted in the
+ * .stop() callback through the local reset, and the .unprepare() ops is invoked
+ * by the remoteproc core after the remoteproc is stopped to balance the global
+ * reset.
+ */
+static int k3_m4_rproc_unprepare(struct rproc *rproc)
+{
+	struct k3_rproc *kproc = rproc->priv;
+	struct device *dev = kproc->dev;
+	int ret;
+
+	/* do not put back the cores into reset in IPC-only mode */
+	if (kproc->ipc_only)
+		return 0;
+
+	ret = kproc->ti_sci->ops.dev_ops.put_device(kproc->ti_sci,
+						    kproc->ti_sci_id);
+	if (ret)
+		dev_err(dev, "module-reset assert failed, ret = %d\n", ret);
+
+	return ret;
+}
+
+/*
+ * Power up the M4F remote processor.
+ *
+ * This function will be invoked only after the firmware for this rproc
+ * was loaded, parsed successfully, and all of its resource requirements
+ * were met.
+ */
+static int k3_m4_rproc_start(struct rproc *rproc)
+{
+	struct k3_rproc *kproc = rproc->priv;
+	struct device *dev = kproc->dev;
+	u32 boot_addr;
+	int ret;
+
+	if (kproc->ipc_only) {
+		dev_err(dev, "%s cannot be invoked in IPC-only mode\n",
+			__func__);
+		return -EINVAL;
+	}
+
+	ret = k3_m4_rproc_request_mbox(rproc);
+	if (ret)
+		return ret;
+
+	boot_addr = rproc->bootaddr;
+	ret = k3_rproc_release(kproc);
+	if (ret)
+		goto put_mbox;
+
+	return 0;
+
+put_mbox:
+	mbox_free_channel(kproc->mbox);
+	return ret;
+}
+
+/*
+ * Stop the M4 remote processor.
+ *
+ * This function puts the M4 processor into reset, and finishes processing
+ * of any pending messages.
+ */
+static int k3_m4_rproc_stop(struct rproc *rproc)
+{
+	struct k3_rproc *kproc = rproc->priv;
+	struct device *dev = kproc->dev;
+
+	if (kproc->ipc_only) {
+		dev_err(dev, "%s cannot be invoked in IPC-only mode\n",
+			__func__);
+		return -EINVAL;
+	}
+
+	mbox_free_channel(kproc->mbox);
+
+	k3_rproc_reset(kproc);
+
+	return 0;
+}
+
+/*
+ * Attach to a running M4 remote processor (IPC-only mode)
+ *
+ * This rproc attach callback only needs to request the mailbox, the remote
+ * processor is already booted, so there is no need to issue any TI-SCI
+ * commands to boot the M4 core.
+ */
+static int k3_m4_rproc_attach(struct rproc *rproc)
+{
+	struct k3_rproc *kproc = rproc->priv;
+	struct device *dev = kproc->dev;
+	int ret;
+
+	if (!kproc->ipc_only || rproc->state != RPROC_DETACHED) {
+		dev_err(dev, "M4 is expected to be in IPC-only mode and RPROC_DETACHED state\n");
+		return -EINVAL;
+	}
+
+	ret = k3_m4_rproc_request_mbox(rproc);
+	if (ret)
+		return ret;
+
+	dev_err(dev, "M4 initialized in IPC-only mode\n");
+	return 0;
+}
+
+/*
+ * Detach from a running M4 remote processor (IPC-only mode)
+ *
+ * This rproc detach callback performs the opposite operation to attach callback
+ * and only needs to release the mailbox, the M4 core is not stopped and will
+ * be left to continue to run its booted firmware.
+ */
+static int k3_m4_rproc_detach(struct rproc *rproc)
+{
+	struct k3_rproc *kproc = rproc->priv;
+	struct device *dev = kproc->dev;
+
+	if (!kproc->ipc_only || rproc->state != RPROC_ATTACHED) {
+		dev_err(dev, "M4 is expected to be in IPC-only mode and RPROC_ATTACHED state\n");
+		return -EINVAL;
+	}
+
+	mbox_free_channel(kproc->mbox);
+	dev_err(dev, "M4 deinitialized in IPC-only mode\n");
+	return 0;
+}
+
+
+
+static const struct rproc_ops k3_m4_rproc_ops = {
+	.start		= k3_m4_rproc_start,
+	.stop		= k3_m4_rproc_stop,
+	.attach		= k3_m4_rproc_attach,
+	.detach		= k3_m4_rproc_detach,
+	.kick		= k3_rproc_kick,
+	.da_to_va	= k3_rproc_da_to_va,
+	.get_loaded_rsc_table = k3_get_loaded_rsc_table,
+};
+
+static int k3_m4_rproc_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct device_node *np = dev->of_node;
+	const struct k3_rproc_dev_data *data;
+	struct k3_rproc *kproc;
+	struct rproc *rproc;
+	const char *fw_name;
+	bool r_state = false;
+	bool p_state = false;
+	int ret = 0;
+	int ret1;
+
+	data = of_device_get_match_data(dev);
+	if (!data)
+		return -ENODEV;
+
+	ret = rproc_of_parse_firmware(dev, 0, &fw_name);
+	if (ret) {
+		dev_err(dev, "failed to parse firmware-name property, ret = %d\n",
+			ret);
+		return ret;
+	}
+
+	rproc = rproc_alloc(dev, dev_name(dev), &k3_m4_rproc_ops, fw_name,
+			    sizeof(*kproc));
+	if (!rproc)
+		return -ENOMEM;
+
+	rproc->has_iommu = false;
+	rproc->recovery_disabled = true;
+	if (data->uses_lreset) {
+		rproc->ops->prepare = k3_m4_rproc_prepare;
+		rproc->ops->unprepare = k3_m4_rproc_unprepare;
+	}
+	kproc = rproc->priv;
+	kproc->rproc = rproc;
+	kproc->dev = dev;
+	kproc->data = data;
+
+	kproc->ti_sci = ti_sci_get_by_phandle(np, "ti,sci");
+	if (IS_ERR(kproc->ti_sci)) {
+		ret = PTR_ERR(kproc->ti_sci);
+		if (ret != -EPROBE_DEFER) {
+			dev_err(dev, "failed to get ti-sci handle, ret = %d\n",
+				ret);
+		}
+		kproc->ti_sci = NULL;
+		goto free_rproc;
+	}
+
+	ret = of_property_read_u32(np, "ti,sci-dev-id", &kproc->ti_sci_id);
+	if (ret) {
+		dev_err(dev, "missing 'ti,sci-dev-id' property\n");
+		goto put_sci;
+	}
+
+	kproc->reset = devm_reset_control_get_exclusive(dev, NULL);
+	if (IS_ERR(kproc->reset)) {
+		ret = PTR_ERR(kproc->reset);
+		dev_err(dev, "failed to get reset, status = %d\n", ret);
+		goto put_sci;
+	}
+
+	kproc->tsp = k3_rproc_of_get_tsp(dev, kproc->ti_sci);
+	if (IS_ERR(kproc->tsp)) {
+		dev_err(dev, "failed to construct ti-sci proc control, ret = %d\n",
+			ret);
+		ret = PTR_ERR(kproc->tsp);
+		goto put_sci;
+	}
+
+	ret = ti_sci_proc_request(kproc->tsp);
+	if (ret < 0) {
+		dev_err(dev, "ti_sci_proc_request failed, ret = %d\n", ret);
+		goto free_tsp;
+	}
+
+	ret = k3_rproc_of_get_memories(pdev, kproc);
+	if (ret)
+		goto release_tsp;
+
+	ret = k3_reserved_mem_init(kproc);
+	if (ret) {
+		dev_err(dev, "reserved memory init failed, ret = %d\n", ret);
+		goto release_tsp;
+	}
+
+	ret = kproc->ti_sci->ops.dev_ops.is_on(kproc->ti_sci, kproc->ti_sci_id,
+					       &r_state, &p_state);
+	if (ret) {
+		dev_err(dev, "failed to get initial state, mode cannot be determined, ret = %d\n",
+			ret);
+		goto release_mem;
+	}
+
+	/* configure devices for either remoteproc or IPC-only mode */
+	if (p_state) {
+		dev_err(dev, "configured M4 for IPC-only mode\n");
+		rproc->state = RPROC_DETACHED;
+		kproc->ipc_only = true;
+	} else {
+		dev_err(dev, "configured M4 for remoteproc mode\n");
+		/*
+		 * ensure the M4 local reset is asserted to ensure the core
+		 * doesn't execute bogus code in .prepare() when the module
+		 * reset is released.
+		 */
+		if (data->uses_lreset) {
+			ret = reset_control_status(kproc->reset);
+			if (ret < 0) {
+				dev_err(dev, "failed to get reset status, status = %d\n",
+					ret);
+				goto release_mem;
+			} else if (ret == 0) {
+				dev_warn(dev, "local reset is deasserted for device\n");
+				k3_rproc_reset(kproc);
+			}
+		}
+	}
+
+	ret = rproc_add(rproc);
+	if (ret) {
+		dev_err(dev, "failed to add register device with remoteproc core, status = %d\n",
+			ret);
+		goto release_mem;
+	}
+
+	platform_set_drvdata(pdev, kproc);
+
+	return 0;
+
+release_mem:
+	k3_reserved_mem_exit(kproc);
+release_tsp:
+	ret1 = ti_sci_proc_release(kproc->tsp);
+	if (ret1)
+		dev_err(dev, "failed to release proc, ret = %d\n", ret1);
+free_tsp:
+	kfree(kproc->tsp);
+put_sci:
+	ret1 = ti_sci_put_handle(kproc->ti_sci);
+	if (ret1)
+		dev_err(dev, "failed to put ti_sci handle, ret = %d\n", ret1);
+free_rproc:
+	rproc_free(rproc);
+	return ret;
+}
+
+static int k3_m4_rproc_remove(struct platform_device *pdev)
+{
+	struct k3_rproc *kproc = platform_get_drvdata(pdev);
+	struct device *dev = &pdev->dev;
+	int ret;
+
+	rproc_del(kproc->rproc);
+
+	ret = ti_sci_proc_release(kproc->tsp);
+	if (ret)
+		dev_err(dev, "failed to release proc, ret = %d\n", ret);
+
+	kfree(kproc->tsp);
+
+	ret = ti_sci_put_handle(kproc->ti_sci);
+	if (ret)
+		dev_err(dev, "failed to put ti_sci handle, ret = %d\n", ret);
+
+	k3_reserved_mem_exit(kproc);
+	rproc_free(kproc->rproc);
+
+	return 0;
+}
+
+static const struct k3_rproc_mem_data am64_m4_mems[] = {
+	{ .name = "iram", .dev_addr = 0x0 },
+	{ .name = "dram", .dev_addr = 0x30000 },
+};
+
+static const struct k3_rproc_dev_data am64_m4_data = {
+	.mems = am64_m4_mems,
+	.num_mems = ARRAY_SIZE(am64_m4_mems),
+	.boot_align_addr = SZ_1K,
+	.uses_lreset = true,
+};
+
+static const struct of_device_id k3_m4_of_match[] = {
+	{ .compatible = "ti,am64-m4fss", .data = &am64_m4_data, },
+	{ /* sentinel */ },
+};
+MODULE_DEVICE_TABLE(of, k3_m4_of_match);
+
+static struct platform_driver k3_m4_rproc_driver = {
+	.probe	= k3_m4_rproc_probe,
+	.remove	= k3_m4_rproc_remove,
+	.driver	= {
+		.name = "k3-m4-rproc",
+		.of_match_table = k3_m4_of_match,
+	},
+};
+
+module_platform_driver(k3_m4_rproc_driver);
+
+MODULE_AUTHOR("Hari Nagalla <hnagalla@ti.com>");
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("TI K3 M4 Remoteproc driver");
