diff --git a/drivers/usb/eth/smsc95xx.c b/drivers/usb/eth/smsc95xx.c
index dc8fa88..0f47ccb 100644
--- a/drivers/usb/eth/smsc95xx.c
+++ b/drivers/usb/eth/smsc95xx.c
@@ -120,8 +120,9 @@
 /* Some extra defines */
 #define HS_USB_PKT_SIZE			512
 #define FS_USB_PKT_SIZE			64
-#define DEFAULT_HS_BURST_CAP_SIZE	(16 * 1024 + 5 * HS_USB_PKT_SIZE)
-#define DEFAULT_FS_BURST_CAP_SIZE	(6 * 1024 + 33 * FS_USB_PKT_SIZE)
+/* 5/33 is lower limit for BURST_CAP to work */
+#define DEFAULT_HS_BURST_CAP_SIZE	(5 * HS_USB_PKT_SIZE)
+#define DEFAULT_FS_BURST_CAP_SIZE	(33 * FS_USB_PKT_SIZE)
 #define DEFAULT_BULK_IN_DELAY		0x00002000
 #define MAX_SINGLE_PACKET_SIZE		2048
 #define EEPROM_MAC_OFFSET		0x01
@@ -135,7 +136,7 @@
 #define USB_BULK_SEND_TIMEOUT 5000
 #define USB_BULK_RECV_TIMEOUT 5000
 
-#define RX_URB_SIZE 2048
+#define RX_URB_SIZE DEFAULT_HS_BURST_CAP_SIZE
 #define PHY_CONNECT_TIMEOUT 5000
 
 #define TURBO_MODE