diff options
Diffstat (limited to 'target-microblaze/cpu.c')
| -rw-r--r-- | target-microblaze/cpu.c | 51 |
1 files changed, 50 insertions, 1 deletions
diff --git a/target-microblaze/cpu.c b/target-microblaze/cpu.c index 21b62c62c9..6f00b0d13a 100644 --- a/target-microblaze/cpu.c +++ b/target-microblaze/cpu.c @@ -1,6 +1,8 @@ /* * QEMU MicroBlaze CPU * + * Copyright (c) 2009 Edgar E. Iglesias + * Copyright (c) 2009-2012 PetaLogix Qld Pty Ltd. * Copyright (c) 2012 SUSE LINUX Products GmbH * * This library is free software; you can redistribute it and/or @@ -29,9 +31,56 @@ static void mb_cpu_reset(CPUState *s) MicroBlazeCPUClass *mcc = MICROBLAZE_CPU_GET_CLASS(cpu); CPUMBState *env = &cpu->env; + if (qemu_loglevel_mask(CPU_LOG_RESET)) { + qemu_log("CPU Reset (CPU %d)\n", env->cpu_index); + log_cpu_state(env, 0); + } + mcc->parent_reset(s); - cpu_state_reset(env); + memset(env, 0, offsetof(CPUMBState, breakpoints)); + tlb_flush(env, 1); + + /* Disable stack protector. */ + env->shr = ~0; + + env->pvr.regs[0] = PVR0_PVR_FULL_MASK \ + | PVR0_USE_BARREL_MASK \ + | PVR0_USE_DIV_MASK \ + | PVR0_USE_HW_MUL_MASK \ + | PVR0_USE_EXC_MASK \ + | PVR0_USE_ICACHE_MASK \ + | PVR0_USE_DCACHE_MASK \ + | PVR0_USE_MMU \ + | (0xb << 8); + env->pvr.regs[2] = PVR2_D_OPB_MASK \ + | PVR2_D_LMB_MASK \ + | PVR2_I_OPB_MASK \ + | PVR2_I_LMB_MASK \ + | PVR2_USE_MSR_INSTR \ + | PVR2_USE_PCMP_INSTR \ + | PVR2_USE_BARREL_MASK \ + | PVR2_USE_DIV_MASK \ + | PVR2_USE_HW_MUL_MASK \ + | PVR2_USE_MUL64_MASK \ + | PVR2_USE_FPU_MASK \ + | PVR2_USE_FPU2_MASK \ + | PVR2_FPU_EXC_MASK \ + | 0; + env->pvr.regs[10] = 0x0c000000; /* Default to spartan 3a dsp family. */ + env->pvr.regs[11] = PVR11_USE_MMU | (16 << 17); + +#if defined(CONFIG_USER_ONLY) + /* start in user mode with interrupts enabled. */ + env->sregs[SR_MSR] = MSR_EE | MSR_IE | MSR_VM | MSR_UM; + env->pvr.regs[10] = 0x0c000000; /* Spartan 3a dsp. */ +#else + env->sregs[SR_MSR] = 0; + mmu_init(&env->mmu); + env->mmu.c_mmu = 3; + env->mmu.c_mmu_tlb_access = 3; + env->mmu.c_mmu_zones = 16; +#endif } static void mb_cpu_class_init(ObjectClass *oc, void *data) |