Radeonfb Xpress 200M RC410 support

Make radeonfb work ith the 200m Xpress RC410. In my tests it was terribly
unstable and would freeze until I set a refresh rate in the kernel argument
to 75.

e.g video=radeonfb:1280x800@75

Now it is rock solid.

Cc: Benjamin Herrenschmidt <[e-mail]>
Cc: "Antonino A. Daplas" <[e-mail]>
Signed-off-by: Andrew Morton <[e-mail]>
Signed-off-by: Linus Torvalds <[e-mail]>

drivers/video/aty/ati_ids.h

···
 #define PCI_CHIP_MACH64VT		0x5654
 #define PCI_CHIP_MACH64VU		0x5655
 #define PCI_CHIP_MACH64VV		0x5656
+#define PCI_CHIP_RC410_5A62             0x5A62
 #define PCI_CHIP_RS300_5834		0x5834
 #define PCI_CHIP_RS300_5835		0x5835
 #define PCI_CHIP_RS300_5836		0x5836

drivers/video/aty/radeon_base.c

···
 	/* 9000/Pro */
 	CHIP_DEF(PCI_CHIP_RV250_If,	RV250,	CHIP_HAS_CRTC2),
 	CHIP_DEF(PCI_CHIP_RV250_Ig,	RV250,	CHIP_HAS_CRTC2),
+
+	CHIP_DEF(PCI_CHIP_RC410_5A62,   RC410,  CHIP_HAS_CRTC2 | CHIP_IS_IGP | CHIP_IS_MOBILITY),
 	/* Mobility 9100 IGP (U3) */
 	CHIP_DEF(PCI_CHIP_RS300_5835,	RS300,	CHIP_HAS_CRTC2 | CHIP_IS_IGP | CHIP_IS_MOBILITY),
 	CHIP_DEF(PCI_CHIP_RS350_7835,	RS300,	CHIP_HAS_CRTC2 | CHIP_IS_IGP | CHIP_IS_MOBILITY),
···
         if ((rinfo->family == CHIP_FAMILY_RS100) ||
             (rinfo->family == CHIP_FAMILY_RS200) ||
             (rinfo->family == CHIP_FAMILY_RS300) ||
+            (rinfo->family == CHIP_FAMILY_RC410) ||
 	    (rinfo->family == CHIP_FAMILY_RS480) ) {
           u32 tom = INREG(NB_TOM);
           tmp = ((((tom >> 16) - (tom & 0xffff) + 1) << 6) * 1024);

drivers/video/aty/radeonfb.h

···
 	CHIP_FAMILY_RV350,
 	CHIP_FAMILY_RV380,    /* RV370/RV380/M22/M24 */
 	CHIP_FAMILY_R420,     /* R420/R423/M18 */
+	CHIP_FAMILY_RC410,
 	CHIP_FAMILY_RS480,
 	CHIP_FAMILY_LAST,
 };
···
 				((rinfo)->family == CHIP_FAMILY_R350)  || \
 				((rinfo)->family == CHIP_FAMILY_RV380) || \
 				((rinfo)->family == CHIP_FAMILY_R420)  || \
-		                ((rinfo)->family == CHIP_FAMILY_RS480) )
+                               ((rinfo)->family == CHIP_FAMILY_RC410) || \
+                               ((rinfo)->family == CHIP_FAMILY_RS480))
 
 /*
  * Chip flags