MIPS: RM7000: Make use of cache_op() instead of inline asm

Small cleanup of the cache code to get rid of inline asm, in preparation
to give tertiary cache support.
Signed-off-by: Ricardo Mendoza <ricmm@gentoo.org>
To: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/1476/Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

arch/mips/mm/sc-rm7k.c

@@ -95,16 +95,8 @@ static __cpuinit void __rm7k_sc_enable(void)
 	write_c0_taglo(0);
 	write_c0_taghi(0);
 
-	for (i = 0; i < scache_size; i += sc_lsize) {
-		__asm__ __volatile__ (
-		      ".set noreorder\n\t"
-		      ".set mips3\n\t"
-		      "cache %1, (%0)\n\t"
-		      ".set mips0\n\t"
-		      ".set reorder"
-		      :
-		      : "r" (CKSEG0ADDR(i)), "i" (Index_Store_Tag_SD));
-	}
+	for (i = 0; i < scache_size; i += sc_lsize)
+		cache_op(Index_Store_Tag_SD, CKSEG0ADDR(i));
 }
 
 static __cpuinit void rm7k_sc_enable(void)