PPC: 405: Use proper CPU reset

On ppc405ep there is a register that allows for software to reset the
core, but not the whole system. Implement this reset using a reset
interrupt.

This gets rid of a bunch of #if 0'ed code.

Reported-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Andreas Färber <afaerber@suse.de>

2 files changed, 4 insertions, 25 deletions

diff --git a/hw/ppc.c b/hw/ppc.c
index 59882e2ecd..a9516f11bb 100644
--- a/hw/ppc.c
+++ b/hw/ppc.c
@@ -131,13 +131,7 @@ static void ppc6xx_set_irq (void *opaque, int pin, int level)
             /* Level sensitive - active low */
             if (level) {
                 LOG_IRQ("%s: reset the CPU\n", __func__);
-                env->interrupt_request |= CPU_INTERRUPT_EXITTB;
-                /* XXX: TOFIX */
-#if 0
-                cpu_reset(env);
-#else
-                qemu_system_reset_request();
-#endif
+                cpu_interrupt(env, CPU_INTERRUPT_RESET);
             }
             break;
         case PPC6xx_INPUT_SRESET:
@@ -214,10 +208,7 @@ static void ppc970_set_irq (void *opaque, int pin, int level)
         case PPC970_INPUT_HRESET:
             /* Level sensitive - active low */
             if (level) {
-#if 0 // XXX: TOFIX
-                LOG_IRQ("%s: reset the CPU\n", __func__);
-                cpu_reset(env);
-#endif
+                cpu_interrupt(env, CPU_INTERRUPT_RESET);
             }
             break;
         case PPC970_INPUT_SRESET:
diff --git a/hw/ppc405_uc.c b/hw/ppc405_uc.c
index 98079fa23f..951b389c4c 100644
--- a/hw/ppc405_uc.c
+++ b/hw/ppc405_uc.c
@@ -1769,13 +1769,7 @@ void ppc40x_core_reset (CPUState *env)
     target_ulong dbsr;
 
     printf("Reset PowerPC core\n");
-    env->interrupt_request |= CPU_INTERRUPT_EXITTB;
-    /* XXX: TOFIX */
-#if 0
-    cpu_reset(env);
-#else
-    qemu_system_reset_request();
-#endif
+    cpu_interrupt(env, CPU_INTERRUPT_RESET);
     dbsr = env->spr[SPR_40x_DBSR];
     dbsr &= ~0x00000300;
     dbsr |= 0x00000100;
@@ -1787,13 +1781,7 @@ void ppc40x_chip_reset (CPUState *env)
     target_ulong dbsr;
 
     printf("Reset PowerPC chip\n");
-    env->interrupt_request |= CPU_INTERRUPT_EXITTB;
-    /* XXX: TOFIX */
-#if 0
-    cpu_reset(env);
-#else
-    qemu_system_reset_request();
-#endif
+    cpu_interrupt(env, CPU_INTERRUPT_RESET);
     /* XXX: TODO reset all internal peripherals */
     dbsr = env->spr[SPR_40x_DBSR];
     dbsr &= ~0x00000300;