static int cpus_power_domain_off(uint32_t cpu_id, uint32_t pd_cfg)
{
uint32_t cpu_pd;
uint32_t core_pm_value;
cpu_pd = PD_CPUL0 + cpu_id;
if (pmu_power_domain_st(cpu_pd) == pmu_pd_off)
return 0;
if (pd_cfg == core_pwr_pd) {
if (check_cpu_wfie(cpu_id, CKECK_WFEI_MSK))
return -EINVAL;
/* disable core_pm cfg */
mmio_write_32(PMU_BASE + PMU_CORE_PM_CON(cpu_id),
CORES_PM_DISABLE);
set_cpus_pwr_domain_cfg_info(cpu_id, pd_cfg);
pmu_power_domain_ctr(cpu_pd, pmu_pd_off);
} else {
set_cpus_pwr_domain_cfg_info(cpu_id, pd_cfg);
core_pm_value = BIT(core_pm_en);
if (pd_cfg == core_pwr_wfi_int)
core_pm_value |= BIT(core_pm_int_wakeup_en);
mmio_write_32(PMU_BASE + PMU_CORE_PM_CON(cpu_id),
core_pm_value);
dsb();
}
return 0;
}
static int cpus_power_domain_on(uint32_t cpu_id)
{
uint32_t cfg_info;
uint32_t cpu_pd = PD_CPUL0 + cpu_id;
/*
* There are two ways to powering on or off on core.
* 1) Control it power domain into on or off in PMU_PWRDN_CON reg
* 2) Enable the core power manage in PMU_CORE_PM_CON reg,
* then, if the core enter into wfi, it power domain will be
* powered off automatically.
*/
cfg_info = get_cpus_pwr_domain_cfg_info(cpu_id);
if (cfg_info == core_pwr_pd) {
/* disable core_pm cfg */
mmio_write_32(PMU_BASE + PMU_CORE_PM_CON(cpu_id),
CORES_PM_DISABLE);
/* if the cores have be on, power off it firstly */
if (pmu_power_domain_st(cpu_pd) == pmu_pd_on) {
mmio_write_32(PMU_BASE + PMU_CORE_PM_CON(cpu_id), 0);
pmu_power_domain_ctr(cpu_pd, pmu_pd_off);
}
pmu_power_domain_ctr(cpu_pd, pmu_pd_on);
} else {
if (pmu_power_domain_st(cpu_pd) == pmu_pd_on) {
WARN("%s: cpu%d is not in off,!\n", __func__, cpu_id);
return -EINVAL;
}
mmio_write_32(PMU_BASE + PMU_CORE_PM_CON(cpu_id),
BIT(core_pm_sft_wakeup_en));
dsb();
}
return 0;
}
static int cpus_id_power_domain(uint32_t cluster,
uint32_t cpu,
uint32_t pd_state,
uint32_t wfie_msk)
{
uint32_t pd;
uint64_t mpidr;
if (cluster)
pd = PD_CPUB0 + cpu;
else
pd = PD_CPUL0 + cpu;
if (pmu_power_domain_st(pd) == pd_state)
return 0;
if (pd_state == pmu_pd_off) {
mpidr = (cluster << MPIDR_AFF1_SHIFT) | cpu;
if (check_cpu_wfie(mpidr, wfie_msk))
return -EINVAL;
}
return pmu_power_domain_ctr(pd, pd_state);
}
