diff --git a/drivers/staging/et131x/et1310_address_map.h b/drivers/staging/et131x/et1310_address_map.h
index 1f9c207c3859..9fa8628f81f5 100644
--- a/drivers/staging/et131x/et1310_address_map.h
+++ b/drivers/staging/et131x/et1310_address_map.h
@@ -727,59 +727,26 @@ typedef union _TXMAC_ERR_CNT_t {
 /*
  * structure for max fill reg in txmac address map
  * located at address 0x300C
+ * 31-12: unused
+ * 11-0: max fill
  */
-typedef union _TXMAC_MAX_FILL_t {
-	u32 value;
-	struct {
-#ifdef _BIT_FIELDS_HTOL
-		u32 unused:20;		/* bits 12-31 */
-		u32 max_fill:12;	/* bits 0-11 */
-#else
-		u32 max_fill:12;	/* bits 0-11 */
-		u32 unused:20;		/* bits 12-31 */
-#endif
-	} bits;
-} TXMAC_MAX_FILL_t, *PTXMAC_MAX_FILL_t;
 
 /*
  * structure for cf parameter reg in txmac address map
  * located at address 0x3010
+ * 31-16: cfep
+ * 15-0: cfpt
  */
-typedef union _TXMAC_CF_PARAM_t {
-	u32 value;
-	struct {
-#ifdef _BIT_FIELDS_HTOL
-		u32 cfep:16;	/* bits 16-31 */
-		u32 cfpt:16;	/* bits 0-15 */
-#else
-		u32 cfpt:16;	/* bits 0-15 */
-		u32 cfep:16;	/* bits 16-31 */
-#endif
-	} bits;
-} TXMAC_CF_PARAM_t, *PTXMAC_CF_PARAM_t;
 
 /*
  * structure for tx test reg in txmac address map
  * located at address 0x3014
+ * 31-17: unused
+ * 16: reserved1
+ * 15: txtest_en
+ * 14-11: unused
+ * 10-0: txq test pointer
  */
-typedef union _TXMAC_TXTEST_t {
-	u32 value;
-	struct {
-#ifdef _BIT_FIELDS_HTOL
-		u32 unused2:15;		/* bits 17-31 */
-		u32 reserved1:1;	/* bit 16 */
-		u32 txtest_en:1;	/* bit 15 */
-		u32 unused1:4;		/* bits 11-14 */
-		u32 txqtest_ptr:11;	/* bits 0-11 */
-#else
-		u32 txqtest_ptr:11;	/* bits 0-10 */
-		u32 unused1:4;		/* bits 11-14 */
-		u32 txtest_en:1;	/* bit 15 */
-		u32 reserved1:1;	/* bit 16 */
-		u32 unused2:15;		/* bits 17-31 */
-#endif
-	} bits;
-} TXMAC_TXTEST_t, *PTXMAC_TXTEST_t;
 
 /*
  * structure for error reg in txmac address map
@@ -869,9 +836,9 @@ typedef struct _TXMAC_t {		/* Location: */
 	TXMAC_CTL_t ctl;		/*  0x3000 */
 	TXMAC_SHADOW_PTR_t shadow_ptr;	/*  0x3004 */
 	TXMAC_ERR_CNT_t err_cnt;	/*  0x3008 */
-	TXMAC_MAX_FILL_t max_fill;	/*  0x300C */
-	TXMAC_CF_PARAM_t cf_param;	/*  0x3010 */
-	TXMAC_TXTEST_t tx_test;		/*  0x3014 */
+	u32 max_fill;			/*  0x300C */
+	u32 cf_param;			/*  0x3010 */
+	u32 tx_test;			/*  0x3014 */
 	TXMAC_ERR_t err;		/*  0x3018 */
 	TXMAC_ERR_INT_t err_int;	/*  0x301C */
 	TXMAC_BP_CTRL_t bp_ctrl;	/*  0x3020 */
diff --git a/drivers/staging/et131x/et1310_mac.c b/drivers/staging/et131x/et1310_mac.c
index 6563b7d9162a..b8a1f2037314 100644
--- a/drivers/staging/et131x/et1310_mac.c
+++ b/drivers/staging/et131x/et1310_mac.c
@@ -371,19 +371,15 @@ void ConfigRxMacRegs(struct et131x_adapter *etdev)
 void ConfigTxMacRegs(struct et131x_adapter *etdev)
 {
 	struct _TXMAC_t __iomem *pTxMac = &etdev->regs->txmac;
-	TXMAC_CF_PARAM_t Local;
 
 	/* We need to update the Control Frame Parameters
 	 * cfpt - control frame pause timer set to 64 (0x40)
 	 * cfep - control frame extended pause timer set to 0x0
 	 */
-	if (etdev->FlowControl == None) {
-		writel(0, &pTxMac->cf_param.value);
-	} else {
-		Local.bits.cfpt = 0x40;
-		Local.bits.cfep = 0x0;
-		writel(Local.value, &pTxMac->cf_param.value);
-	}
+	if (etdev->FlowControl == None)
+		writel(0, &pTxMac->cf_param);
+	else
+		writel(0x40, &pTxMac->cf_param);
 }
 
 void ConfigMacStatRegs(struct et131x_adapter *etdev)
diff --git a/drivers/staging/et131x/et131x_adapter.h b/drivers/staging/et131x/et131x_adapter.h
index 81109b302cf5..ed35f8afdd41 100644
--- a/drivers/staging/et131x/et131x_adapter.h
+++ b/drivers/staging/et131x/et131x_adapter.h
@@ -214,7 +214,7 @@ struct et131x_adapter {
 	u8 MCList[NIC_MAX_MCAST_LIST][ETH_ALEN];
 
 	/* MAC test */
-	TXMAC_TXTEST_t TxMacTest;
+	u32 TxMacTest;
 
 	/* Pointer to the device's PCI register space */
 	ADDRESS_MAP_t __iomem *regs;
diff --git a/drivers/staging/et131x/et131x_isr.c b/drivers/staging/et131x/et131x_isr.c
index ccd9bc22e185..486abe47dfc7 100644
--- a/drivers/staging/et131x/et131x_isr.c
+++ b/drivers/staging/et131x/et131x_isr.c
@@ -337,11 +337,10 @@ void et131x_isr_handler(struct work_struct *work)
 			 */
 			/* TRAP();*/
 
-			etdev->TxMacTest.value =
-				readl(&iomem->txmac.tx_test.value);
+			etdev->TxMacTest = readl(&iomem->txmac.tx_test);
 			dev_warn(&etdev->pdev->dev,
 				    "RxDMA_ERR interrupt, error %x\n",
-				    etdev->TxMacTest.value);
+				    etdev->TxMacTest);
 		}
 
 		/* Handle the Wake on LAN Event */