Hi Ralf, VR41_CONF_BP is necessary only for processor ID 0xc80. Please apply. Yoichi Signed-off-by: Yoichi Yuasa <yoichi_yuasa@xxxxxxxxxxxxxx> diff -pruN -X mips/Documentation/dontdiff mips-orig/arch/mips/mm/c-r4k.c mips/arch/mips/mm/c-r4k.c --- mips-orig/arch/mips/mm/c-r4k.c 2006-07-04 11:54:18.405308250 +0900 +++ mips/arch/mips/mm/c-r4k.c 2006-07-04 22:45:11.862517750 +0900 @@ -848,7 +848,9 @@ static void __init probe_pcache(void) if (c->processor_id == 0x0c80U || c->processor_id == 0x0c81U || c->processor_id == 0x0c82U) { config &= ~0x00000030U; - config |= 0x00410000U; + config |= 0x00400000U; + if (c->processor_id == 0x0c80U) + config |= VR41_CONF_BP; write_c0_config(config); } icache_size = 1 << (10 + ((config & CONF_IC) >> 9));