[MIPS] vr41xx: Changed workaround to recommended method

Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

diff --git a/arch/mips/mm/c-r4k.c b/arch/mips/mm/c-r4k.c
index 256b661..d5111d1 100644 (file)
--- a/arch/mips/mm/c-r4k.c
+++ b/arch/mips/mm/c-r4k.c
@@ -867,12 +867,13 @@ static void __init probe_pcache(void)
                /* Workaround for cache instruction bug of VR4131 */
                if (c->processor_id == 0x0c80U || c->processor_id == 0x0c81U ||
                    c->processor_id == 0x0c82U) {
-                       config &= ~0x00000030U;
                        config |= 0x00400000U;
                        if (c->processor_id == 0x0c80U)
                                config |= VR41_CONF_BP;
                        write_c0_config(config);
-               }
+               } else
+                       c->options |= MIPS_CPU_CACHE_CDEX_P;
+
                icache_size = 1 << (10 + ((config & CONF_IC) >> 9));
                c->icache.linesz = 16 << ((config & CONF_IB) >> 5);
                c->icache.ways = 2;
@@ -882,8 +883,6 @@ static void __init probe_pcache(void)
                c->dcache.linesz = 16 << ((config & CONF_DB) >> 4);
                c->dcache.ways = 2;
                c->dcache.waybit = __ffs(dcache_size/2);
-
-               c->options |= MIPS_CPU_CACHE_CDEX_P;
                break;
 
        case CPU_VR41XX: