diff --git a/drivers/staging/sm750fb/ddk750_reg.h b/drivers/staging/sm750fb/ddk750_reg.h
index cdc5867..1b96af3 100644
--- a/drivers/staging/sm750fb/ddk750_reg.h
+++ b/drivers/staging/sm750fb/ddk750_reg.h
@@ -828,13 +828,9 @@
 #define PANEL_COLOR_KEY_VALUE                         15:0
 
 #define PANEL_FB_ADDRESS                              0x08000C
-#define PANEL_FB_ADDRESS_STATUS                       31:31
-#define PANEL_FB_ADDRESS_STATUS_CURRENT               0
-#define PANEL_FB_ADDRESS_STATUS_PENDING               1
-#define PANEL_FB_ADDRESS_EXT                          27:27
-#define PANEL_FB_ADDRESS_EXT_LOCAL                    0
-#define PANEL_FB_ADDRESS_EXT_EXTERNAL                 1
-#define PANEL_FB_ADDRESS_ADDRESS                      25:0
+#define PANEL_FB_ADDRESS_STATUS                       BIT(31)
+#define PANEL_FB_ADDRESS_EXT                          BIT(27)
+#define PANEL_FB_ADDRESS_ADDRESS_MASK                 0x1ffffff
 
 #define PANEL_FB_WIDTH                                0x080010
 #define PANEL_FB_WIDTH_WIDTH                          29:16
diff --git a/drivers/staging/sm750fb/sm750_hw.c b/drivers/staging/sm750fb/sm750_hw.c
index 964c5f0..938ea72 100644
--- a/drivers/staging/sm750fb/sm750_hw.c
+++ b/drivers/staging/sm750fb/sm750_hw.c
@@ -308,9 +308,7 @@
 	if (crtc->channel != sm750_secondary) {
 		/* set pitch, offset ,width,start address ,etc... */
 		POKE32(PANEL_FB_ADDRESS,
-			FIELD_SET(0, PANEL_FB_ADDRESS, STATUS, CURRENT)|
-			FIELD_SET(0, PANEL_FB_ADDRESS, EXT, LOCAL)|
-			FIELD_VALUE(0, PANEL_FB_ADDRESS, ADDRESS, crtc->oScreen));
+		       crtc->oScreen & PANEL_FB_ADDRESS_ADDRESS_MASK);
 
 		reg = var->xres * (var->bits_per_pixel >> 3);
 		/* crtc->channel is not equal to par->index on numeric,be aware of that */
@@ -538,8 +536,8 @@
 	total += crtc->oScreen;
 	if (crtc->channel == sm750_primary) {
 		POKE32(PANEL_FB_ADDRESS,
-			FIELD_VALUE(PEEK32(PANEL_FB_ADDRESS),
-				PANEL_FB_ADDRESS, ADDRESS, total));
+		       PEEK32(PANEL_FB_ADDRESS) |
+		       (total & PANEL_FB_ADDRESS_ADDRESS_MASK));
 	} else {
 		POKE32(CRT_FB_ADDRESS,
 			FIELD_VALUE(PEEK32(CRT_FB_ADDRESS),