[PATCH] powerpc: fix various sparse warnings

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>

arch/powerpc/platforms/powermac/bootx_init.c

@@ -493,7 +493,7 @@ void __init bootx_init(unsigned long r3, unsigned long r4)
 		    && (strcmp(model, "iMac,1") == 0
 			|| strcmp(model, "PowerMac1,1") == 0)) {
 			bootx_printf("iMac,1 detected, shutting down USB \n");
-			out_le32((unsigned *)0x80880008, 1);	/* XXX */
+			out_le32((unsigned __iomem *)0x80880008, 1);	/* XXX */
 		}
 	}