[src/trunk]: src/sys/arch/arm/cortex Always set SMP on the A7 since it's need...

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

details:   https://anonhg.NetBSD.org/src/rev/189f40b13837
branches:  trunk
changeset: 332340:189f40b13837
user:      matt <matt%NetBSD.org@localhost>
date:      Tue Sep 16 22:29:09 2014 +0000

description:
Always set SMP on the A7 since it's needed for ldrex/strex

diffstat:

 sys/arch/arm/cortex/a9_mpsubr.S |  6 ++++--
 1 files changed, 4 insertions(+), 2 deletions(-)

diffs (20 lines):

diff -r af27e23e0dda -r 189f40b13837 sys/arch/arm/cortex/a9_mpsubr.S
--- a/sys/arch/arm/cortex/a9_mpsubr.S   Tue Sep 16 22:28:56 2014 +0000
+++ b/sys/arch/arm/cortex/a9_mpsubr.S   Tue Sep 16 22:29:09 2014 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: a9_mpsubr.S,v 1.22 2014/09/16 22:00:22 matt Exp $      */
+/*     $NetBSD: a9_mpsubr.S,v 1.23 2014/09/16 22:29:09 matt Exp $      */
 /*-
  * Copyright (c) 2012 The NetBSD Foundation, Inc.
  * All rights reserved.
@@ -443,7 +443,9 @@
        mcr     p15, 0, r1, c8, c7, 0   // TLBIALL (just this core)
 #endif
 
-#if defined(MULTIPROCESSOR)
+       // For the A7, SMP must be on ldrex/strex to work.
+       //
+#if defined(MULTIPROCESSOR) || defined(CPU_CORTEXA7)
 #if defined(CPU_CORTEXA5) || defined(CPU_CORTEXA7) || defined(CPU_CORTEXA9)
        //
        // Step 4a, set ACTLR.SMP=1