SCU wake event not working

Lakshmi_AG — Fri, 30 Jun 2023 18:44:52 GMT

We are trying to wake up AP cores from sleep mode using SCU wake event,

Using below SCU configuration before executing WFE.

sc_irq_enable(ipc_handle, 297U, SC_IRQ_GROUP_WAKE, SC_IRQ_PAD, SC_TRUE);
    /* Enable GPIO pad wakeup */
    sc_pad_set_wakeup(ipc_handle, 40U, 6U);//SC_PAD_WAKEUP_RISE_EDGE 6U
    sc_pm_req_low_power_mode(ipc_handle, SC_R_A53, SC_PM_PW_MODE_OFF);
    sc_pm_req_cpu_low_power_mode(ipc_handle, SC_R_A53, SC_PM_PW_MODE_OFF, SC_PM_WAKE_SRC_SCU);

But SCU is not generating interrupt to resume the core out of WFE.

Re: SCU wake event not working

Zhiming_Liu — Wed, 05 Jul 2023 03:23:30 GMT

Do you have ATF layer in your project?

Re: SCU wake event not working

Lakshmi_AG — Wed, 05 Jul 2023 08:15:32 GMT

No, We are trying to follow same steps as mentioned in ATF but executing in bare metal env.

topic Re: SCU wake event not working in i.MX Processors

SCU wake event not working

Re: SCU wake event not working

Re: SCU wake event not working