/* * 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; }
void spm_go_to_hotplug(void) { const struct pcm_desc *pcmdesc = spm_hotplug.pcmdesc; struct pwr_ctrl *pwrctrl = spm_hotplug.pwrctrl; set_pwrctrl_pcm_flags(pwrctrl, 0); spm_reset_and_init_pcm(); spm_kick_im_to_fetch(pcmdesc); spm_set_power_control(pwrctrl); spm_set_wakeup_event(pwrctrl); spm_kick_pcm_to_run(pwrctrl); }
void spm_mcdi_prepare(unsigned long mpidr) { const struct pcm_desc *pcmdesc = spm_mcdi.pcmdesc; struct pwr_ctrl *pwrctrl = spm_mcdi.pwrctrl; spm_lock_get(); if (is_mcdi_ready() == 0) { if (is_hotplug_ready() == 1) spm_clear_hotplug(); set_pwrctrl_pcm_flags(pwrctrl, 0); spm_reset_and_init_pcm(); spm_kick_im_to_fetch(pcmdesc); spm_set_power_control(pwrctrl); spm_set_wakeup_event(pwrctrl); spm_kick_pcm_to_run(pwrctrl); set_mcdi_ready(); } spm_mcdi_wfi_sel_enter(mpidr); spm_lock_release(); }
/* * 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); }
wake_reason_t spm_go_to_sleep(u32 spm_flags, u32 spm_data) { u32 sec = 0; int wd_ret; struct wake_status wakesta; unsigned long flags; struct mtk_irq_mask mask; struct wd_api *wd_api; static wake_reason_t last_wr = WR_NONE; struct pcm_desc *pcmdesc = __spm_suspend.pcmdesc; struct pwr_ctrl *pwrctrl = __spm_suspend.pwrctrl; struct spm_lp_scen *lpscen; lpscen = spm_check_talking_get_lpscen(&__spm_suspend, &spm_flags); pcmdesc = lpscen->pcmdesc; pwrctrl = lpscen->pwrctrl; set_pwrctrl_pcm_flags(pwrctrl, spm_flags); set_pwrctrl_pcm_data(pwrctrl, spm_data); #if SPM_PWAKE_EN sec = spm_get_wake_period(-1 /* FIXME */, last_wr); #endif pwrctrl->timer_val = sec * 32768; wd_ret = get_wd_api(&wd_api); if (!wd_ret) wd_api->wd_suspend_notify(); spm_suspend_pre_process(pwrctrl); 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, pwrctrl->wake_src, is_cpu_pdn(pwrctrl->pcm_flags), is_infra_pdn(pwrctrl->pcm_flags)); if (request_uart_to_sleep()) { last_wr = WR_UART_BUSY; goto RESTORE_IRQ; } __spm_reset_and_init_pcm(pcmdesc); __spm_kick_im_to_fetch(pcmdesc); __spm_init_pcm_register(); __spm_init_event_vector(pcmdesc); __spm_set_power_control(pwrctrl); __spm_set_wakeup_event(pwrctrl); spm_kick_pcm_to_run(pwrctrl); #if 0 if (1 == spm_snapshot_golden_setting) { snapshot_golden_setting(__FUNCTION__, __LINE__); spm_snapshot_golden_setting = 2; } #endif spm_trigger_wfi_for_sleep(pwrctrl); __spm_get_wakeup_status(&wakesta); spm_clean_after_wakeup(); request_uart_to_wakeup(); last_wr = spm_output_wake_reason(&wakesta, pcmdesc); RESTORE_IRQ: mt_cirq_flush(); mt_cirq_disable(); mt_irq_mask_restore(&mask); spin_unlock_irqrestore(&__spm_lock, flags); spm_suspend_post_process(pwrctrl); if (!wd_ret) wd_api->wd_resume_notify(); return last_wr; }
/* * 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; }