/*
* cpu_pdn:
* true = CPU dormant
* false = CPU standby
* pwrlevel:
* 0 = AXI is off
* 1 = AXI is 26M
*/
wake_reason_t spm_go_to_dpidle(bool cpu_pdn, u16 pwrlevel)
{
wake_status_t wakesta;
unsigned long flags;
struct mtk_irq_mask mask;
wake_reason_t wr = WR_NONE;
const pcm_desc_t *pcmdesc = &pcm_dpidle;
const bool pcmwdt_en = false;
spin_lock_irqsave(&spm_lock, flags);
mt_irq_mask_all(&mask);
mt_irq_unmask_for_sleep(MT_SPM_IRQ_ID);
mt_cirq_clone_gic();
mt_cirq_enable();
spm_reset_and_init_pcm();
spm_kick_im_to_fetch(pcmdesc);
if (spm_request_uart_to_sleep()) {
wr = WR_UART_BUSY;
goto RESTORE_IRQ;
}
spm_init_pcm_register();
spm_init_event_vector(pcmdesc);
spm_set_pwrctl_for_dpidle(pwrlevel);
spm_set_wakeup_event(0, WAKE_SRC_FOR_DPIDLE);
spm_kick_pcm_to_run(cpu_pdn, false, pcmwdt_en); /* keep INFRA/DDRPHY power */
spm_dpidle_before_wfi();
spm_trigger_wfi_for_dpidle(cpu_pdn);
spm_dpidle_after_wfi();
spm_get_wakeup_status(&wakesta);
spm_clean_after_wakeup(pcmwdt_en);
wr = spm_output_wake_reason(&wakesta, true);
RESTORE_IRQ:
mt_cirq_flush();
mt_cirq_disable();
mt_irq_mask_restore(&mask);
spin_unlock_irqrestore(&spm_lock, flags);
return wr;
}
/*
* go_to_sleep_before_wfi() - trigger SPM to enter suspend scenario
*/
static void go_to_sleep_before_wfi(const unsigned int spm_flags)
{
struct pwr_ctrl *pwrctrl;
pwrctrl = &spm_ctrl;
set_pwrctrl_pcm_flags(pwrctrl, spm_flags);
spm_set_sysclk_settle();
INFO("sec = %u, wakesrc = 0x%x (%u)(%u)\n",
pwrctrl->timer_val, pwrctrl->wake_src,
is_cpu_pdn(pwrctrl->pcm_flags),
is_infra_pdn(pwrctrl->pcm_flags));
spm_reset_and_init_pcm();
spm_init_pcm_register();
spm_set_power_control(pwrctrl);
spm_set_wakeup_event(pwrctrl);
spm_kick_pcm_to_run(pwrctrl);
spm_init_event_vector(&suspend_pcm_ca7);
spm_kick_im_to_fetch(&suspend_pcm_ca7);
}
bool spm_init_pcm(SPM_PCM_CONFIG* pcm_config)
{
u32 timer_val,wdt_timer_val;
bool wfi_sel[2] = {false,false};
pcm_config_curr = pcm_config;
if(pcm_config->scenario == SPM_PCM_DEEP_IDLE)
spm_crit2("%s with cpu_pdn=%d, pwr_level=%d, infra_pdn=%d\n",pcm_scenario[pcm_config->scenario],pcm_config->cpu_pdn,pcm_config->pcm_pwrlevel,pcm_config->infra_pdn);
else
spm_crit2("%s with cpu_pdn=%d, infra_pdn=%d\n",pcm_scenario[pcm_config->scenario],pcm_config->cpu_pdn,pcm_config->infra_pdn);
//spm_crit2("spm_init_pcm():%s, timer_val: %d, wake_src:0x%X \n",pcm_scenario[pcm_config->scenario],pcm_config->timer_val_sec,pcm_config->wake_src);
/*
if(pcm_config->scenario == SPM_PCM_KERNEL_SUSPEND)
pcm_config_curr->cpu_status = SHUTDOWN_MODE;
else if(pcm_config->scenario == SPM_PCM_DEEP_IDLE)
pcm_config_curr->cpu_status = DORMANT_MODE;*/
pcm_config->wakesta[pcm_config->wakesta_idx].wake_reason = WR_NONE ;
spm_write(SPM_POWERON_CONFIG_SET, (SPM_PROJECT_CODE << 16) | (1U << 0));
//if pcm will turn on and off the 26Mhz, we need to setup the settle time
if(pcm_config->spm_turn_off_26m)
spm_set_sysclk_settle();
spm_reset_and_init_pcm();
/*init Instruction Memory*/
spm_kick_im_to_fetch(pcm_config->pcm_firmware_addr,pcm_config->pcm_firmware_len);
if (pcm_config->spm_request_uart_sleep)
if(spm_request_uart_to_sleep()){
return false;
}
/*init R0 ,R7*/
if(pcm_config->sync_r0r7)
spm_init_pcm_register();
/*init VSRs*/
spm_init_event_vector(pcm_config->pcm_vsr);
/*Setup pwr level if necessary*/
spm_set_ap_pwrctl(pcm_config->pcm_pwrlevel);
if(pcm_config->scenario == SPM_PCM_MCDI)
{
/* set standby wfi */
spm_set_ap_standbywfi(pcm_config->md_mask,
pcm_config->mm_mask,
pcm_config->wfi_scu_mask,
pcm_config->wfi_l2c_mask,
pcm_config->wfi_op,
wfi_sel);
}
else
{
/* set standby wfi */
spm_set_ap_standbywfi(pcm_config->md_mask,
pcm_config->mm_mask,
pcm_config->wfi_scu_mask,
pcm_config->wfi_l2c_mask,
pcm_config->wfi_op,
pcm_config->wfi_sel);
}
timer_val= (unsigned int)((pcm_config->timer_val_ms * 32768)/1024);//In the unit of 32Khz
wdt_timer_val = (unsigned int)((pcm_config->wdt_val_ms * 32768)/1024);//In the unit of 32Khz
//spm_set_wakeup_event(pcm_config->timer_val_sec * 32768,pcm_config->wake_src);
//if(pcm_config->scenario != SPM_PCM_WDT)
spm_set_wakeup_event(timer_val,wdt_timer_val,pcm_config->wake_src);
return true;
}
/*
* cpu_pdn:
* true = CPU shutdown
* false = CPU standby
* infra_pdn:
* true = INFRA/DDRPHY power down
* false = keep INFRA/DDRPHY power
* pwake_time:
* >= 0 = specific wakeup period
*/
wake_reason_t spm_go_to_sleep(bool cpu_pdn, bool infra_pdn, int pwake_time)
{
u32 sec = 0;
int wd_ret;
wake_status_t wakesta;
unsigned long flags;
struct mtk_irq_mask mask;
struct wd_api *wd_api;
static wake_reason_t last_wr = WR_NONE;
const pcm_desc_t *pcmdesc = &pcm_suspend;
const bool pcmwdt_en = true;
#if SPM_PWAKE_EN
sec = spm_get_wake_period(pwake_time, last_wr);
#endif
wd_ret = get_wd_api(&wd_api);
if (!wd_ret)
wd_api->wd_suspend_notify();
spin_lock_irqsave(&spm_lock, flags);
mt_irq_mask_all(&mask);
mt_irq_unmask_for_sleep(MT_SPM_IRQ_ID);
mt_cirq_clone_gic();
mt_cirq_enable();
spm_set_sysclk_settle();
spm_crit2("sec = %u, wakesrc = 0x%x (%u)(%u)\n",
sec, spm_sleep_wakesrc, cpu_pdn, infra_pdn);
spm_reset_and_init_pcm();
spm_kick_im_to_fetch(pcmdesc);
if (spm_request_uart_to_sleep()) {
last_wr = WR_UART_BUSY;
goto RESTORE_IRQ;
}
spm_init_pcm_register();
spm_init_event_vector(pcmdesc);
spm_set_pwrctl_for_sleep();
spm_set_wakeup_event(sec * 32768, spm_sleep_wakesrc);
spm_kick_pcm_to_run(cpu_pdn, infra_pdn, pcmwdt_en);
spm_trigger_wfi_for_sleep(cpu_pdn, infra_pdn);
spm_get_wakeup_status(&wakesta);
spm_clean_after_wakeup(pcmwdt_en);
last_wr = spm_output_wake_reason(&wakesta, false);
RESTORE_IRQ:
mt_cirq_flush();
mt_cirq_disable();
mt_irq_mask_restore(&mask);
spin_unlock_irqrestore(&spm_lock, flags);
//spm_go_to_normal(); /* included in pcm_suspend */
if (!wd_ret)
wd_api->wd_resume_notify();
return last_wr;
}