MIPS: MTI: Fix accesses to device registers on MIPS boards

This fixes the remaining problems introduced by
f197465384bf7ef1af184c2ed1a4e268911a91e3 (incorrect access length &
byteswapping in bigendian mode)

Signed-off-by: Chris Dearman <chris@mips.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/mti-malta/malta-int.c b/arch/mips/mti-malta/malta-int.c
index 3e0a9b3..e568d0d 100644
--- a/arch/mips/mti-malta/malta-int.c
+++ b/arch/mips/mti-malta/malta-int.c
@@ -87,7 +87,7 @@
 		dummy = BONITO_PCIMAP_CFG;
 		iob();    /* sync */
 
-		irq = readl((u32 *)_pcictrl_bonito_pcicfg);
+		irq = __raw_readl((u32 *)_pcictrl_bonito_pcicfg);
 		iob();    /* sync */
 		irq &= 0xff;
 		BONITO_PCIMAP_CFG = 0;