[src/trunk]: src/sys/arch/arm/cortex clean the a9 l2 cache before turning it on.

[matt <matt%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/577074193323
branches:  trunk
changeset: 334683:577074193323
user:      matt <matt%NetBSD.org@localhost>
date:      Mon Dec 01 22:39:06 2014 +0000

description:
clean the a9 l2 cache before turning it on.

diffstat:

 sys/arch/arm/cortex/pl310.c |  8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)

diffs (32 lines):

diff -r b9047d81c641 -r 577074193323 sys/arch/arm/cortex/pl310.c
--- a/sys/arch/arm/cortex/pl310.c       Mon Dec 01 20:30:27 2014 +0000
+++ b/sys/arch/arm/cortex/pl310.c       Mon Dec 01 22:39:06 2014 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: pl310.c,v 1.15 2014/04/16 22:40:00 matt Exp $  */
+/*     $NetBSD: pl310.c,v 1.16 2014/12/01 22:39:06 matt Exp $  */
 
 /*-
  * Copyright (c) 2012 The NetBSD Foundation, Inc.
@@ -30,7 +30,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: pl310.c,v 1.15 2014/04/16 22:40:00 matt Exp $");
+__KERNEL_RCSID(0, "$NetBSD: pl310.c,v 1.16 2014/12/01 22:39:06 matt Exp $");
 
 #include <sys/param.h>
 #include <sys/bus.h>
@@ -249,11 +249,11 @@
 {
        mutex_spin_enter(&sc->sc_lock);
 
-       arml2cc_write_4(sc, L2C_CTL, 1);        // turn it on
-
        arml2cc_cache_way_op(sc, L2C_INV_WAY, sc->sc_waymask);
        arml2cc_cache_sync(sc);
 
+       arml2cc_write_4(sc, L2C_CTL, 1);        // turn it on
+
        mutex_spin_exit(&sc->sc_lock);
 }