diff options
author | Josh Boyer <jwboyer@linux.vnet.ibm.com> | 2007-11-16 12:29:56 -0500 |
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committer | Josh Boyer <jwboyer@linux.vnet.ibm.com> | 2007-11-19 09:22:20 -0500 |
commit | 3d1d662ef423adf6947a37e230f4d7e8ed7c9544 (patch) | |
tree | a94fc24a021377e4b654101caa6104470405966d /arch/ppc/kernel | |
parent | b8b799a497e4a4bfd5fca8abc526e908b26c71e8 (diff) |
[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>
Diffstat (limited to 'arch/ppc/kernel')
-rw-r--r-- | arch/ppc/kernel/setup.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/ppc/kernel/setup.c b/arch/ppc/kernel/setup.c index aac88c2f3db9..5255bd80aa6b 100644 --- a/arch/ppc/kernel/setup.c +++ b/arch/ppc/kernel/setup.c | |||
@@ -312,7 +312,14 @@ early_init(int r3, int r4, int r5) | |||
312 | * Identify the CPU type and fix up code sections | 312 | * Identify the CPU type and fix up code sections |
313 | * that depend on which cpu we have. | 313 | * that depend on which cpu we have. |
314 | */ | 314 | */ |
315 | #if defined(CONFIG_440EP) && defined(CONFIG_PPC_FPU) | ||
316 | /* We pass the virtual PVR here for 440EP as 440EP and 440GR have | ||
317 | * identical PVRs and there is no reliable way to check for the FPU | ||
318 | */ | ||
319 | spec = identify_cpu(offset, (mfspr(SPRN_PVR) | 0x8)); | ||
320 | #else | ||
315 | spec = identify_cpu(offset, mfspr(SPRN_PVR)); | 321 | spec = identify_cpu(offset, mfspr(SPRN_PVR)); |
322 | #endif | ||
316 | do_feature_fixups(spec->cpu_features, | 323 | do_feature_fixups(spec->cpu_features, |
317 | PTRRELOC(&__start___ftr_fixup), | 324 | PTRRELOC(&__start___ftr_fixup), |
318 | PTRRELOC(&__stop___ftr_fixup)); | 325 | PTRRELOC(&__stop___ftr_fixup)); |