diff --git a/arch/arm/mach-bcm2708/bcm2708.c b/arch/arm/mach-bcm2708/bcm2708.c
index c7b4b615ca68f7..dc57983e1eb16f 100644
--- a/arch/arm/mach-bcm2708/bcm2708.c
+++ b/arch/arm/mach-bcm2708/bcm2708.c
@@ -616,6 +616,28 @@ static struct platform_device bcm2835_thermal_device = {
 	.name = "bcm2835_thermal",
 };
 
+#if defined(CONFIG_SND_BCM2708_SOC_I2S) || defined(CONFIG_SND_BCM2708_SOC_I2S_MODULE)
+static struct resource bcm2708_i2s_resources[] = {
+	{
+		.start = I2S_BASE,
+		.end = I2S_BASE + 0x20,
+		.flags = IORESOURCE_MEM,
+	},
+        {
+		.start = PCM_CLOCK_BASE,
+		.end = PCM_CLOCK_BASE + 0x02,
+		.flags = IORESOURCE_MEM,
+	}
+};
+
+static struct platform_device bcm2708_i2s_device = {
+	.name = "bcm2708-i2s",
+	.id = 0,
+	.num_resources = ARRAY_SIZE(bcm2708_i2s_resources),
+	.resource = bcm2708_i2s_resources,
+};
+#endif
+
 int __init bcm_register_device(struct platform_device *pdev)
 {
 	int ret;
@@ -780,6 +802,10 @@ void __init bcm2708_init(void)
 
 	bcm_register_device_dt(&bcm2835_thermal_device);
 
+#if defined(CONFIG_SND_BCM2708_SOC_I2S) || defined(CONFIG_SND_BCM2708_SOC_I2S_MODULE)
+	bcm_register_device_dt(&bcm2708_i2s_device);
+#endif
+
 	if (!use_dt) {
 		for (i = 0; i < ARRAY_SIZE(amba_devs); i++) {
 			struct amba_device *d = amba_devs[i];
diff --git a/sound/soc/bcm/bcm2708-i2s.c b/sound/soc/bcm/bcm2708-i2s.c
index a3b65dc6713b80..a515992d048777 100644
--- a/sound/soc/bcm/bcm2708-i2s.c
+++ b/sound/soc/bcm/bcm2708-i2s.c
@@ -874,7 +874,7 @@ static const struct snd_soc_component_driver bcm2708_i2s_component = {
 	.name		= "bcm2708-i2s-comp",
 };
 
-static const struct snd_pcm_hardware bcm2708_pcm_hardware = {
+static struct snd_pcm_hardware bcm2708_pcm_hardware = {
 	.info			= SNDRV_PCM_INFO_INTERLEAVED |
 				  SNDRV_PCM_INFO_JOINT_DUPLEX,
 	.formats		= SNDRV_PCM_FMTBIT_S16_LE |
@@ -902,6 +902,11 @@ static int bcm2708_i2s_probe(struct platform_device *pdev)
 	struct regmap *regmap[2];
 	struct resource *mem[2];
 
+	if (of_property_read_bool(pdev->dev.of_node, "brcm,enable-mmap"))
+		bcm2708_pcm_hardware.info |=
+			SNDRV_PCM_INFO_MMAP |
+			SNDRV_PCM_INFO_MMAP_VALID;
+
 	/* Request both ioareas */
 	for (i = 0; i <= 1; i++) {
 		void __iomem *base;