diff --git a/drivers/irqchip/irq-mvebu-icu.c b/drivers/irqchip/irq-mvebu-icu.c
index f7c2ede9c222..bec506f0b1a9 100644
--- a/drivers/irqchip/irq-mvebu-icu.c
+++ b/drivers/irqchip/irq-mvebu-icu.c
@@ -28,6 +28,10 @@
 #define ICU_SETSPI_NSR_AH	0x14
 #define ICU_CLRSPI_NSR_AL	0x18
 #define ICU_CLRSPI_NSR_AH	0x1c
+#define ICU_SET_SEI_AL		0x50
+#define ICU_SET_SEI_AH		0x54
+#define ICU_CLR_SEI_AL		0x58
+#define ICU_CLR_SEI_AH		0x5C
 #define ICU_INT_CFG(x)          (0x100 + 4 * (x))
 #define   ICU_INT_ENABLE	BIT(24)
 #define   ICU_IS_EDGE		BIT(28)
@@ -38,12 +42,28 @@
 #define ICU_SATA0_ICU_ID	109
 #define ICU_SATA1_ICU_ID	107
 
+struct mvebu_icu_subset_data {
+	unsigned int icu_group;
+	unsigned int offset_set_ah;
+	unsigned int offset_set_al;
+	unsigned int offset_clr_ah;
+	unsigned int offset_clr_al;
+};
+
 struct mvebu_icu {
 	struct irq_chip irq_chip;
 	struct regmap *regmap;
 	struct device *dev;
-	atomic_t initialized;
 	bool legacy_bindings;
+	/* Lock on interrupt allocations/releases */
+	struct mutex msi_lock;
+	DECLARE_BITMAP(msi_bitmap, ICU_MAX_IRQS);
+};
+
+struct mvebu_icu_msi_data {
+	struct mvebu_icu *icu;
+	atomic_t initialized;
+	const struct mvebu_icu_subset_data *subset_data;
 };
 
 struct mvebu_icu_irq_data {
@@ -76,16 +96,25 @@ static struct mvebu_icu *mvebu_icu_dev_get_drvdata(struct platform_device *pdev)
 	return icu;
 }
 
-static void mvebu_icu_init(struct mvebu_icu *icu, struct msi_msg *msg)
+static void mvebu_icu_init(struct mvebu_icu *icu, struct irq_domain *d,
+			   struct msi_msg *msg)
 {
-	if (atomic_cmpxchg(&icu->initialized, false, true))
+	struct mvebu_icu_msi_data *msi_data = platform_msi_get_host_data(d);
+	const struct mvebu_icu_subset_data *subset = msi_data->subset_data;
+
+	if (atomic_cmpxchg(&msi_data->initialized, false, true))
+		return;
+
+	/* Set 'SET' ICU SPI message address in AP */
+	regmap_write(icu->regmap, subset->offset_set_ah, msg[0].address_hi);
+	regmap_write(icu->regmap, subset->offset_set_al, msg[0].address_lo);
+
+	if (subset->icu_group != ICU_GRP_NSR)
 		return;
 
-	/* Set Clear/Set ICU SPI message address in AP */
-	regmap_write(icu->regmap, ICU_SETSPI_NSR_AH, msg[0].address_hi);
-	regmap_write(icu->regmap, ICU_SETSPI_NSR_AL, msg[0].address_lo);
-	regmap_write(icu->regmap, ICU_CLRSPI_NSR_AH, msg[1].address_hi);
-	regmap_write(icu->regmap, ICU_CLRSPI_NSR_AL, msg[1].address_lo);
+	/* Set 'CLEAR' ICU SPI message address in AP (level-MSI only) */
+	regmap_write(icu->regmap, subset->offset_clr_ah, msg[1].address_hi);
+	regmap_write(icu->regmap, subset->offset_clr_al, msg[1].address_lo);
 }
 
 static void mvebu_icu_write_msg(struct msi_desc *desc, struct msi_msg *msg)
@@ -96,8 +125,8 @@ static void mvebu_icu_write_msg(struct msi_desc *desc, struct msi_msg *msg)
 	unsigned int icu_int;
 
 	if (msg->address_lo || msg->address_hi) {
-		/* One off initialization */
-		mvebu_icu_init(icu, msg);
+		/* One off initialization per domain */
+		mvebu_icu_init(icu, d->domain, msg);
 		/* Configure the ICU with irq number & type */
 		icu_int = msg->data | ICU_INT_ENABLE;
 		if (icu_irqd->type & IRQ_TYPE_EDGE_RISING)
@@ -131,7 +160,8 @@ static int
 mvebu_icu_irq_domain_translate(struct irq_domain *d, struct irq_fwspec *fwspec,
 			       unsigned long *hwirq, unsigned int *type)
 {
-	struct mvebu_icu *icu = platform_msi_get_host_data(d);
+	struct mvebu_icu_msi_data *msi_data = platform_msi_get_host_data(d);
+	struct mvebu_icu *icu = msi_data->icu;
 	unsigned int param_count = icu->legacy_bindings ? 3 : 2;
 
 	/* Check the count of the parameters in dt */
@@ -143,7 +173,7 @@ mvebu_icu_irq_domain_translate(struct irq_domain *d, struct irq_fwspec *fwspec,
 
 	if (icu->legacy_bindings) {
 		*hwirq = fwspec->param[1];
-		*type = fwspec->param[2];
+		*type = fwspec->param[2] & IRQ_TYPE_SENSE_MASK;
 		if (fwspec->param[0] != ICU_GRP_NSR) {
 			dev_err(icu->dev, "wrong ICU group type %x\n",
 				fwspec->param[0]);
@@ -151,7 +181,7 @@ mvebu_icu_irq_domain_translate(struct irq_domain *d, struct irq_fwspec *fwspec,
 		}
 	} else {
 		*hwirq = fwspec->param[0];
-		*type = fwspec->param[1];
+		*type = fwspec->param[1] & IRQ_TYPE_SENSE_MASK;
 	}
 
 	if (*hwirq >= ICU_MAX_IRQS) {
@@ -159,12 +189,36 @@ mvebu_icu_irq_domain_translate(struct irq_domain *d, struct irq_fwspec *fwspec,
 		return -EINVAL;
 	}
 
-	/* Mask the type to prevent wrong DT configuration */
-	*type = fwspec->param[2] & IRQ_TYPE_SENSE_MASK;
+	/*
+	 * The ICU receives level-interrupts. MSI SEI are
+	 * edge-interrupts while MSI NSR are level-interrupts. Update the type
+	 * accordingly for the parent irqchip.
+	 */
+	if (msi_data->subset_data->icu_group == ICU_GRP_SEI)
+		*type = IRQ_TYPE_EDGE_RISING;
 
 	return 0;
 }
 
+static int mvebu_icu_msi_bitmap_region_alloc(struct mvebu_icu *icu, int hwirq)
+{
+	int ret;
+
+	mutex_lock(&icu->msi_lock);
+	ret = bitmap_allocate_region(icu->msi_bitmap, hwirq, 0);
+	mutex_unlock(&icu->msi_lock);
+
+	return ret;
+}
+
+static void mvebu_icu_msi_bitmap_region_release(struct mvebu_icu *icu,
+						int hwirq)
+{
+	mutex_lock(&icu->msi_lock);
+	bitmap_release_region(icu->msi_bitmap, hwirq, 0);
+	mutex_unlock(&icu->msi_lock);
+}
+
 static int
 mvebu_icu_irq_domain_alloc(struct irq_domain *domain, unsigned int virq,
 			   unsigned int nr_irqs, void *args)
@@ -172,7 +226,9 @@ mvebu_icu_irq_domain_alloc(struct irq_domain *domain, unsigned int virq,
 	int err;
 	unsigned long hwirq;
 	struct irq_fwspec *fwspec = args;
-	struct mvebu_icu *icu = platform_msi_get_host_data(domain);
+	struct mvebu_icu_msi_data *msi_data =
+		platform_msi_get_host_data(domain);
+	struct mvebu_icu *icu = msi_data->icu;
 	struct mvebu_icu_irq_data *icu_irqd;
 
 	icu_irqd = kmalloc(sizeof(*icu_irqd), GFP_KERNEL);
@@ -186,16 +242,20 @@ mvebu_icu_irq_domain_alloc(struct irq_domain *domain, unsigned int virq,
 		goto free_irqd;
 	}
 
+	err = mvebu_icu_msi_bitmap_region_alloc(icu, hwirq);
+	if (err)
+		goto free_irqd;
+
 	if (icu->legacy_bindings)
 		icu_irqd->icu_group = fwspec->param[0];
 	else
-		icu_irqd->icu_group = ICU_GRP_NSR;
+		icu_irqd->icu_group = msi_data->subset_data->icu_group;
 	icu_irqd->icu = icu;
 
 	err = platform_msi_domain_alloc(domain, virq, nr_irqs);
 	if (err) {
 		dev_err(icu->dev, "failed to allocate ICU interrupt in parent domain\n");
-		goto free_irqd;
+		goto free_bitmap;
 	}
 
 	/* Make sure there is no interrupt left pending by the firmware */
@@ -214,6 +274,8 @@ mvebu_icu_irq_domain_alloc(struct irq_domain *domain, unsigned int virq,
 
 free_msi:
 	platform_msi_domain_free(domain, virq, nr_irqs);
+free_bitmap:
+	mvebu_icu_msi_bitmap_region_release(icu, hwirq);
 free_irqd:
 	kfree(icu_irqd);
 	return err;
@@ -223,12 +285,17 @@ static void
 mvebu_icu_irq_domain_free(struct irq_domain *domain, unsigned int virq,
 			  unsigned int nr_irqs)
 {
+	struct mvebu_icu_msi_data *msi_data =
+		platform_msi_get_host_data(domain);
+	struct mvebu_icu *icu = msi_data->icu;
 	struct irq_data *d = irq_get_irq_data(virq);
 	struct mvebu_icu_irq_data *icu_irqd = d->chip_data;
 
 	kfree(icu_irqd);
 
 	platform_msi_domain_free(domain, virq, nr_irqs);
+
+	mvebu_icu_msi_bitmap_region_release(icu, d->hwirq);
 }
 
 static const struct irq_domain_ops mvebu_icu_domain_ops = {
@@ -239,14 +306,29 @@ static const struct irq_domain_ops mvebu_icu_domain_ops = {
 
 static int mvebu_icu_subset_probe(struct platform_device *pdev)
 {
+	const struct mvebu_icu_subset_data *subset;
+	struct mvebu_icu_msi_data *msi_data;
 	struct device_node *msi_parent_dn;
 	struct irq_domain *irq_domain;
 	struct mvebu_icu *icu;
 
+	msi_data = devm_kzalloc(&pdev->dev, sizeof(*msi_data), GFP_KERNEL);
+	if (!msi_data)
+		return -ENOMEM;
+
 	icu = mvebu_icu_dev_get_drvdata(pdev);
 	if (IS_ERR(icu))
 		return PTR_ERR(icu);
 
+	subset = of_device_get_match_data(&pdev->dev);
+	if (!subset) {
+		dev_err(&pdev->dev, "Could not retrieve subset data\n");
+		return -EINVAL;
+	}
+
+	msi_data->icu = icu;
+	msi_data->subset_data = subset;
+
 	pdev->dev.msi_domain = of_msi_get_domain(&pdev->dev, pdev->dev.of_node,
 						 DOMAIN_BUS_PLATFORM_MSI);
 	if (!pdev->dev.msi_domain)
@@ -256,10 +338,10 @@ static int mvebu_icu_subset_probe(struct platform_device *pdev)
 	if (!msi_parent_dn)
 		return -ENODEV;
 
-	irq_domain = platform_msi_create_device_domain(&pdev->dev, ICU_MAX_IRQS,
+	irq_domain = platform_msi_create_device_domain(&pdev->dev, 0,
 						       mvebu_icu_write_msg,
 						       &mvebu_icu_domain_ops,
-						       icu);
+						       msi_data);
 	if (!irq_domain) {
 		dev_err(&pdev->dev, "Failed to create ICU MSI domain\n");
 		return -ENOMEM;
@@ -268,9 +350,28 @@ static int mvebu_icu_subset_probe(struct platform_device *pdev)
 	return 0;
 }
 
+static const struct mvebu_icu_subset_data mvebu_icu_nsr_subset_data = {
+	.icu_group = ICU_GRP_NSR,
+	.offset_set_ah = ICU_SETSPI_NSR_AH,
+	.offset_set_al = ICU_SETSPI_NSR_AL,
+	.offset_clr_ah = ICU_CLRSPI_NSR_AH,
+	.offset_clr_al = ICU_CLRSPI_NSR_AL,
+};
+
+static const struct mvebu_icu_subset_data mvebu_icu_sei_subset_data = {
+	.icu_group = ICU_GRP_SEI,
+	.offset_set_ah = ICU_SET_SEI_AH,
+	.offset_set_al = ICU_SET_SEI_AL,
+};
+
 static const struct of_device_id mvebu_icu_subset_of_match[] = {
 	{
 		.compatible = "marvell,cp110-icu-nsr",
+		.data = &mvebu_icu_nsr_subset_data,
+	},
+	{
+		.compatible = "marvell,cp110-icu-sei",
+		.data = &mvebu_icu_sei_subset_data,
 	},
 	{},
 };
@@ -317,6 +418,8 @@ static int mvebu_icu_probe(struct platform_device *pdev)
 	if (IS_ERR(icu->regmap))
 		return PTR_ERR(icu->regmap);
 
+	mutex_init(&icu->msi_lock);
+
 	icu->irq_chip.name = devm_kasprintf(&pdev->dev, GFP_KERNEL,
 					    "ICU.%x",
 					    (unsigned int)res->start);
@@ -341,7 +444,7 @@ static int mvebu_icu_probe(struct platform_device *pdev)
 #endif
 
 	/*
-	 * Clean all ICU interrupts with type SPI_NSR, required to
+	 * Clean all ICU interrupts of type NSR and SEI, required to
 	 * avoid unpredictable SPI assignments done by firmware.
 	 */
 	for (i = 0 ; i < ICU_MAX_IRQS ; i++) {
@@ -350,7 +453,8 @@ static int mvebu_icu_probe(struct platform_device *pdev)
 		regmap_read(icu->regmap, ICU_INT_CFG(i), &icu_int);
 		icu_grp = icu_int >> ICU_GROUP_SHIFT;
 
-		if (icu_grp == ICU_GRP_NSR)
+		if (icu_grp == ICU_GRP_NSR ||
+		    (icu_grp == ICU_GRP_SEI && !icu->legacy_bindings))
 			regmap_write(icu->regmap, ICU_INT_CFG(i), 0);
 	}
 
@@ -363,7 +467,9 @@ static int mvebu_icu_probe(struct platform_device *pdev)
 }
 
 static const struct of_device_id mvebu_icu_of_match[] = {
-	{ .compatible = "marvell,cp110-icu", },
+	{
+		.compatible = "marvell,cp110-icu",
+	},
 	{},
 };
 
