[src/trunk]: src/sys/arch/powerpc/oea Make sure ABE/SYNCBE are enabled in HID...

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

details:   https://anonhg.NetBSD.org/src/rev/e6af2e30c06d
branches:  trunk
changeset: 790158:e6af2e30c06d
user:      matt <matt%NetBSD.org@localhost>
date:      Sun Sep 22 18:05:16 2013 +0000

description:
Make sure ABE/SYNCBE are enabled in HID1 for the 7450 CPUs
Enable XBSEN for the 7450.

diffstat:

 sys/arch/powerpc/oea/cpu_subr.c |  32 ++++++++++++++++++++++++--------
 1 files changed, 24 insertions(+), 8 deletions(-)

diffs (56 lines):

diff -r 413131c634fb -r e6af2e30c06d sys/arch/powerpc/oea/cpu_subr.c
--- a/sys/arch/powerpc/oea/cpu_subr.c   Sun Sep 22 17:51:31 2013 +0000
+++ b/sys/arch/powerpc/oea/cpu_subr.c   Sun Sep 22 18:05:16 2013 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: cpu_subr.c,v 1.76 2012/10/20 14:42:15 kiyohara Exp $   */
+/*     $NetBSD: cpu_subr.c,v 1.77 2013/09/22 18:05:16 matt Exp $       */
 
 /*-
  * Copyright (c) 2001 Matt Thomas.
@@ -34,7 +34,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: cpu_subr.c,v 1.76 2012/10/20 14:42:15 kiyohara Exp $");
+__KERNEL_RCSID(0, "$NetBSD: cpu_subr.c,v 1.77 2013/09/22 18:05:16 matt Exp $");
 
 #include "opt_ppcparam.h"
 #include "opt_ppccache.h"
@@ -278,15 +278,31 @@
        } else if (vers == MPC601) {
                oeacpufeat |= OEACPU_601;
 
-       } else if (MPC745X_P(vers) && vers != MPC7450) {
-               oeacpufeat |= OEACPU_HIGHSPRG;
+       } else if (MPC745X_P(vers)) {
+               register_t hid0 = mfspr(SPR_HID0);
+               register_t hid1 = mfspr(SPR_HID1);
+
+               if (vers != MPC7450) {
+                       /* Enable more SPRG registers */
+                       oeacpufeat |= OEACPU_HIGHSPRG;
+
+                       /* Enable more BAT registers */
+                       oeacpufeat |= OEACPU_HIGHBAT;
+                       hid0 |= HID0_HIGH_BAT_EN;
+               }
+
+               /* Enable larger BAT registers */
                oeacpufeat |= OEACPU_XBSEN;
-               oeacpufeat |= OEACPU_HIGHBAT;
-               /* Enable more and larger BAT registers */
-               register_t hid0 = mfspr(SPR_HID0);
                hid0 |= HID0_XBSEN;
-               hid0 |= HID0_HIGH_BAT_EN;
+
+               /* Enable address broadcasting for MP systems */
+               hid1 |= HID1_SYNCBE | HID1_ABE;
+
                mtspr(SPR_HID0, hid0);
+               __asm volatile("sync;isync");
+
+               mtspr(SPR_HID0, hid1);
+               __asm volatile("sync;isync");
 
        } else if (vers == IBM750FX || vers == IBM750GX) {
                oeacpufeat |= OEACPU_HIGHBAT;