diff options
Diffstat (limited to 'arch/powerpc/kernel/cpu_setup_fsl_booke.S')
| -rw-r--r-- | arch/powerpc/kernel/cpu_setup_fsl_booke.S | 32 |
1 files changed, 30 insertions, 2 deletions
diff --git a/arch/powerpc/kernel/cpu_setup_fsl_booke.S b/arch/powerpc/kernel/cpu_setup_fsl_booke.S index 021822daa8f6..1345e1bc748a 100644 --- a/arch/powerpc/kernel/cpu_setup_fsl_booke.S +++ b/arch/powerpc/kernel/cpu_setup_fsl_booke.S @@ -105,17 +105,45 @@ _GLOBAL(__setup_cpu_e5500) mtlr r5 blr #endif + #ifdef CONFIG_PPC_BOOK3E_64 -/* Right now, restore and setup are the same thing */ _GLOBAL(__restore_cpu_e5500) -_GLOBAL(__setup_cpu_e5500) mflr r4 bl __e500_icache_setup bl __e500_dcache_setup bl .__setup_base_ivors bl .setup_perfmon_ivor bl .setup_doorbell_ivors + /* + * We only want to touch IVOR38-41 if we're running on hardware + * that supports category E.HV. The architectural way to determine + * this is MMUCFG[LPIDSIZE]. + */ + mfspr r10,SPRN_MMUCFG + rlwinm. r10,r10,0,MMUCFG_LPIDSIZE + beq 1f bl .setup_ehv_ivors +1: mtlr r4 blr + +_GLOBAL(__setup_cpu_e5500) + mflr r5 + bl __e500_icache_setup + bl __e500_dcache_setup + bl .__setup_base_ivors + bl .setup_perfmon_ivor + bl .setup_doorbell_ivors + /* + * We only want to touch IVOR38-41 if we're running on hardware + * that supports category E.HV. The architectural way to determine + * this is MMUCFG[LPIDSIZE]. + */ + mfspr r10,SPRN_MMUCFG + rlwinm. r10,r10,0,MMUCFG_LPIDSIZE + beq 1f + bl .setup_ehv_ivors +1: + mtlr r5 + blr #endif |