[commit] r1378 - trunk/openbios-devel/config/scripts

[repository service]

Author: mcayland
Date: Wed Feb  3 21:46:31 2016
New Revision: 1378
URL: http://tracker.coreboot.org/trac/openbios/changeset/1378

Log:
ppc: force target cpu

With gcc-5.2 default target is power7.

- For 32-bit PPC builds set the target cpu to 604 in order to support PReP as
  well as Macs in the future.

- For 64-bit PPC builds set the target cpu to 970 as used in 64-bit Macs but
  disable altivec.

Based on an original patch by Laurent Vivier .

Signed-off-by: Mark Cave-Ayland

Modified:
   trunk/openbios-devel/config/scripts/switch-arch

Modified: trunk/openbios-devel/config/scripts/switch-arch
==============================================================================
--- trunk/openbios-devel/config/scripts/switch-arch	Fri Jan  8 13:09:48 2016	(r1377)
+++ trunk/openbios-devel/config/scripts/switch-arch	Wed Feb  3 21:46:31 2016	(r1378)
@@ -265,7 +265,8 @@
         ppc)
         select_prefix powerpc powerpc64
         if [ "$unix" = "no" ]; then
-            CFLAGS="-m32 -msoft-float -fno-builtin-bcopy -fno-builtin-log2"
+            # 604 cpu includes support for PReP as well as Mac
+            CFLAGS="-m32 -mcpu=604 -msoft-float -fno-builtin-bcopy -fno-builtin-log2"
             AS_FLAGS="-m32"
         else
             CFLAGS="-fno-builtin"
@@ -275,7 +276,9 @@

ppc64)
         select_prefix powerpc64
-        CFLAGS="-Wa,-a64 -m64 -msoft-float -fno-builtin"
+
+        # 970 cpu is used in all 64-bit Macs but disable altivec
+        CFLAGS="-mcpu=970 -mno-altivec -Wa,-a64 -m64 -msoft-float -fno-builtin"
         AS_FLAGS="-Wa,-a64"
         ;;