MIPS: smp-cps: set a coherent default CCA
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@imgtec.com>
diff --git a/arch/mips/kernel/smp-cps.c b/arch/mips/kernel/smp-cps.c
index e2f78b3..6b96fed 100644
--- a/arch/mips/kernel/smp-cps.c
+++ b/arch/mips/kernel/smp-cps.c
@@ -76,6 +76,9 @@
__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);