void bsp_reset(void) { uint32_t self_cpu = rtems_get_current_processor(); if (self_cpu == 0) { volatile struct irqmp_regs *irqmp = LEON3_IrqCtrl_Regs; if (irqmp != NULL) { /* * Value was choosen to get something in the magnitude of 1ms on a 200MHz * processor. */ uint32_t max_wait = 1234567; uint32_t cpu_count = rtems_get_processor_count(); uint32_t halt_mask = 0; uint32_t i; for (i = 0; i < cpu_count; ++i) { if (i != self_cpu) { halt_mask |= UINT32_C(1) << i; } } /* Wait some time for secondary processors to halt */ i = 0; while ((irqmp->mpstat & halt_mask) != halt_mask && i < max_wait) { ++i; } } __asm__ volatile ( "mov 1, %g1\n" "ta 0\n" "nop" ); } leon3_power_down_loop(); }
/* Power down LEON CPU on fatal error exit */ void _CPU_Fatal_halt(uint32_t source, uint32_t error) { sparc_disable_interrupts(); leon3_power_down_loop(); }