add fix from #1516

SVN-Revision: 6697

target/linux/brcm47xx-2.6/files/drivers/ssb/driver_pci/pcicore.c

@@ -162,7 +162,6 @@ static int ssb_extpci_read_config(struct ssb_pcicore *pc,
 		goto unmap;
 	}
 	
-	val = readl(mmio);
 	val >>= (8 * (off & 3));
 
 	switch (len) {
@@ -210,12 +209,10 @@ static int ssb_extpci_write_config(struct ssb_pcicore *pc,
 
 	switch (len) {
 	case 1:
-		val = readl(mmio);
 		val &= ~(0xFF << (8 * (off & 3)));
 		val |= *((const u8 *)buf) << (8 * (off & 3));
 		break;
 	case 2:
-		val = readl(mmio);
 		val &= ~(0xFFFF << (8 * (off & 3)));
 		val |= *((const u16 *)buf) << (8 * (off & 3));
 		break;
@@ -223,7 +220,7 @@ static int ssb_extpci_write_config(struct ssb_pcicore *pc,
 		val = *((const u32 *)buf);
 		break;
 	}
-	writel(*((const u32 *)buf), mmio);
+	writel(val, mmio);
 
 	err = 0;
 unmap: