diff --git a/drivers/video/aty/ati_ids.h b/drivers/video/aty/ati_ids.h
index 39ab483fc25011112f7a47898c56716c3be30b43..90e7df22f508a8dc992c133ee1f6dfb6d0fe0685 100644
--- a/drivers/video/aty/ati_ids.h
+++ b/drivers/video/aty/ati_ids.h
@@ -209,4 +209,4 @@
 #define PCI_CHIP_R423_5D57              0x5D57
 #define PCI_CHIP_RS350_7834             0x7834
 #define PCI_CHIP_RS350_7835             0x7835
-
+#define PCI_CHIP_RS480_5955             0x5955
diff --git a/drivers/video/aty/radeon_base.c b/drivers/video/aty/radeon_base.c
index a4b3fd185de7618113a7bd43d33553f0afc1574b..0ec36cd5de28d0103c719931174cc24cf18cb299 100644
--- a/drivers/video/aty/radeon_base.c
+++ b/drivers/video/aty/radeon_base.c
@@ -100,6 +100,8 @@
 	{ PCI_VENDOR_ID_ATI, id, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (flags) | (CHIP_FAMILY_##family) }
 
 static struct pci_device_id radeonfb_pci_table[] = {
+        /* Radeon Xpress 200m */
+	CHIP_DEF(PCI_CHIP_RS480_5955,   RS480,  CHIP_HAS_CRTC2 | CHIP_IS_IGP | CHIP_IS_MOBILITY),
 	/* Mobility M6 */
 	CHIP_DEF(PCI_CHIP_RADEON_LY, 	RV100,	CHIP_HAS_CRTC2 | CHIP_IS_MOBILITY),
 	CHIP_DEF(PCI_CHIP_RADEON_LZ,	RV100,	CHIP_HAS_CRTC2 | CHIP_IS_MOBILITY),
@@ -1994,7 +1996,8 @@ static void radeon_identify_vram(struct radeonfb_info *rinfo)
 	/* framebuffer size */
         if ((rinfo->family == CHIP_FAMILY_RS100) ||
             (rinfo->family == CHIP_FAMILY_RS200) ||
-            (rinfo->family == CHIP_FAMILY_RS300)) {
+            (rinfo->family == CHIP_FAMILY_RS300) ||
+	    (rinfo->family == CHIP_FAMILY_RS480) ) {
           u32 tom = INREG(NB_TOM);
           tmp = ((((tom >> 16) - (tom & 0xffff) + 1) << 6) * 1024);
 
diff --git a/drivers/video/aty/radeon_pm.c b/drivers/video/aty/radeon_pm.c
index c411293cefc8a9bb3a88ca46f5abf0b185cf4b3b..4425f7e903093ef924b2a54a5dd15c208f5a58da 100644
--- a/drivers/video/aty/radeon_pm.c
+++ b/drivers/video/aty/radeon_pm.c
@@ -2826,11 +2826,15 @@ void radeonfb_pm_init(struct radeonfb_info *rinfo, int dynclk, int ignore_devlis
 	rinfo->pm_reg = pci_find_capability(rinfo->pdev, PCI_CAP_ID_PM);
 
 	/* Enable/Disable dynamic clocks: TODO add sysfs access */
-	rinfo->dynclk = dynclk;
-	if (dynclk == 1) {
+	if (rinfo->family == CHIP_FAMILY_RS480)
+		rinfo->dynclk = -1;
+	else
+		rinfo->dynclk = dynclk;
+
+	if (rinfo->dynclk == 1) {
 		radeon_pm_enable_dynamic_mode(rinfo);
 		printk("radeonfb: Dynamic Clock Power Management enabled\n");
-	} else if (dynclk == 0) {
+	} else if (rinfo->dynclk == 0) {
 		radeon_pm_disable_dynamic_mode(rinfo);
 		printk("radeonfb: Dynamic Clock Power Management disabled\n");
 	}
diff --git a/drivers/video/aty/radeonfb.h b/drivers/video/aty/radeonfb.h
index 319000360285a9d2d70226aa1c53c409a52af8df..7ebffcdfd1e38e67d64b155dc8abf4d706ec11dd 100644
--- a/drivers/video/aty/radeonfb.h
+++ b/drivers/video/aty/radeonfb.h
@@ -48,6 +48,7 @@ enum radeon_family {
 	CHIP_FAMILY_RV350,
 	CHIP_FAMILY_RV380,    /* RV370/RV380/M22/M24 */
 	CHIP_FAMILY_R420,     /* R420/R423/M18 */
+	CHIP_FAMILY_RS480,
 	CHIP_FAMILY_LAST,
 };
 
@@ -64,7 +65,8 @@ enum radeon_family {
 				((rinfo)->family == CHIP_FAMILY_RV350) || \
 				((rinfo)->family == CHIP_FAMILY_R350)  || \
 				((rinfo)->family == CHIP_FAMILY_RV380) || \
-				((rinfo)->family == CHIP_FAMILY_R420))
+				((rinfo)->family == CHIP_FAMILY_R420)  || \
+		                ((rinfo)->family == CHIP_FAMILY_RS480) )
 
 /*
  * Chip flags