IMG_VOID DisableSystemClocks(SYS_DATA *psSysData)
{
SYS_SPECIFIC_DATA *psSysSpecData = (SYS_SPECIFIC_DATA *) psSysData->pvSysSpecificData;
PVR_TRACE(("DisableSystemClocks: Disabling System Clocks"));
DisableSGXClocks(psSysData);
/* disable & gate clock, power down */
clk_disable_unprepare(psSysSpecData->psSGXClock);
cpm_pwc_disable(psSysSpecData->pCPMHandle);
}
void jzsoc_cpu_die(unsigned int cpu)
{
unsigned long flags;
unsigned int status;
if (cpu == 0) /* FIXME */
return;
local_irq_save(flags);
cpumask_clear_cpu(cpu, cpu_ready);
cpumask_clear_cpu(cpu, &cpu_start);
cpumask_clear_cpu(cpu, &cpu_running);
wmb();
do{
status = get_smp_status();
}while(!(status & (1<<(cpu+16))));
cpm_pwc_disable(scpu_pwc);
cpm_set_bit(15,CPM_CLKGR1);
local_irq_restore(flags);
printk("disable cpu %d\n",cpu);
}
static long vpu_off(struct jz_vpu *vpu)
{
disable_irq_nosync(vpu->irq);
__asm__ __volatile__ (
"mfc0 $2, $16, 7 \n\t"
"andi $2, $2, 0xbf \n\t"
"mtc0 $2, $16, 7 \n\t"
"nop \n\t");
cpm_clear_bit(31,CPM_OPCR);
clk_disable(vpu->clk);
clk_disable(vpu->clk_gate);
cpm_pwc_disable(vpu->cpm_pwc);
/* Clear completion use_count here to avoid a unhandled irq after vpu off */
vpu->done.done = 0;
//wake_unlock(&vpu->wake_lock);
dev_dbg(vpu->dev, "[%d:%d] off\n", current->tgid, current->pid);
return 0;
}
