diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
index 90b2f78ec7..a7249b7511 100644
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -245,3 +245,15 @@ config USB_DWC2
 	  Hi-Speed (480 Mbps), Full-Speed (12 Mbps), and Low-Speed (1.5 Mbps)
 	  operation is compliant to the controller Supplement. If you want to
 	  enable this controller in host mode, say Y.
+
+if USB_DWC2
+config USB_DWC2_BUFFER_SIZE
+	int "Data buffer size in kB"
+	default 64
+	---help---
+	  By default 64 kB buffer is used but if amount of RAM avaialble on
+	  the target is not enough to accommodate allocation of buffer of
+	  that size it is possible to shrink it. Smaller sizes should be fine
+	  because larger transactions could be split in smaller ones.
+
+endif # USB_DWC2
diff --git a/drivers/usb/host/dwc2.c b/drivers/usb/host/dwc2.c
index 0efe645044..e436c711e7 100644
--- a/drivers/usb/host/dwc2.c
+++ b/drivers/usb/host/dwc2.c
@@ -25,7 +25,7 @@ DECLARE_GLOBAL_DATA_PTR;
 #define DWC2_HC_CHANNEL			0
 
 #define DWC2_STATUS_BUF_SIZE		64
-#define DWC2_DATA_BUF_SIZE		(64 * 1024)
+#define DWC2_DATA_BUF_SIZE		(CONFIG_USB_DWC2_BUFFER_SIZE * 1024)
 
 #define MAX_DEVICE			16
 #define MAX_ENDPOINT			16