This patch sets a default CCA suited for use with multi-core SMP on all current MIPS CPS based systems. It may still be overriden by the cca= argument on the kernel command line. Signed-off-by: Paul Burton <paul.burton@xxxxxxxxxx> --- arch/mips/kernel/smp-cps.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/mips/kernel/smp-cps.c b/arch/mips/kernel/smp-cps.c index 4e2346d..ae7be36 100644 --- a/arch/mips/kernel/smp-cps.c +++ b/arch/mips/kernel/smp-cps.c @@ -76,6 +76,9 @@ static void __init cps_smp_setup(void) __cpu_logical_map[v] = v; } + /* Set a coherent default CCA (CWB) */ + change_c0_config(CONF_CM_CMASK, 0x5); + /* Core 0 is powered up (we're running on it) */ bitmap_set(core_power, 0, 1); -- 1.8.5.3
