[POWERPC] 4xx: Use virtual PVR value to init FPU on arch/ppc 440EP
This fixes arch/ppc 440EP platforms to setup the FPU correctly. A virtual
PVR is used, as 440GR platforms share an identical hardware PVR value and do
not have an FPU.
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
diff --git a/arch/ppc/kernel/setup.c b/arch/ppc/kernel/setup.c
index aac88c2..5255bd8 100644
--- a/arch/ppc/kernel/setup.c
+++ b/arch/ppc/kernel/setup.c
@@ -312,7 +312,14 @@
* Identify the CPU type and fix up code sections
* that depend on which cpu we have.
*/
+#if defined(CONFIG_440EP) && defined(CONFIG_PPC_FPU)
+ /* We pass the virtual PVR here for 440EP as 440EP and 440GR have
+ * identical PVRs and there is no reliable way to check for the FPU
+ */
+ spec = identify_cpu(offset, (mfspr(SPRN_PVR) | 0x8));
+#else
spec = identify_cpu(offset, mfspr(SPRN_PVR));
+#endif
do_feature_fixups(spec->cpu_features,
PTRRELOC(&__start___ftr_fixup),
PTRRELOC(&__stop___ftr_fixup));