[PATCH] cyber2010 framebuffer on ARM Netwinder fix

The Netwinder machines with Cyber2010 crash badly when starting Xserver. The workaround is to disable pci burst option for this revision of video chip. [[email protected]: cleanup] Signed-off-by: Woody Suwalski <[email protected]> Cc: "Antonino A. Daplas" <[email protected]> Cc: James Simmons <[email protected]> Cc: Ralf Baechle <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
akeromi · Feb 12, 2007 · cd792aa · cd792aa
1 parent 3a09910
commit cd792aa
Showing 1 changed file with 12 additions and 7 deletions.
diff --git a/drivers/video/cyber2000fb.c b/drivers/video/cyber2000fb.c
@@ -1539,16 +1539,21 @@ static int cyberpro_pci_enable_mmio(struct cfb_info *cfb)
 	/*
 	 * Allow the CyberPro to accept PCI burst accesses
 	 */
-	val = cyber2000_grphr(EXT_BUS_CTL, cfb);
-	if (!(val & EXT_BUS_CTL_PCIBURST_WRITE)) {
-		printk(KERN_INFO "%s: enabling PCI bursts\n", cfb->fb.fix.id);
+	if (cfb->id == ID_CYBERPRO_2010) {
+		printk(KERN_INFO "%s: NOT enabling PCI bursts\n", cfb->fb.fix.id);
+	} else {
+		val = cyber2000_grphr(EXT_BUS_CTL, cfb);
+		if (!(val & EXT_BUS_CTL_PCIBURST_WRITE)) {
+			printk(KERN_INFO "%s: enabling PCI bursts\n",
+				cfb->fb.fix.id);
 
-		val |= EXT_BUS_CTL_PCIBURST_WRITE;
+			val |= EXT_BUS_CTL_PCIBURST_WRITE;
 
-		if (cfb->id == ID_CYBERPRO_5000)
-			val |= EXT_BUS_CTL_PCIBURST_READ;
+			if (cfb->id == ID_CYBERPRO_5000)
+				val |= EXT_BUS_CTL_PCIBURST_READ;
 
-		cyber2000_grphw(EXT_BUS_CTL, val, cfb);
+			cyber2000_grphw(EXT_BUS_CTL, val, cfb);
+		}
 	}
 
 	return 0;