Hi Boaz

Yes, plat_setup_psci_ops() is mandatory. Every platform needs to implement it independently. You can use the implementation from [1] as a reference. I don’t think you have to delete any original function. If your platform does not support PSCI spec, you can implement a dummy function. Hope it helps.

int plat_setup_psci_ops(uintptr_t sec_entrypoint,

                                                const plat_psci_ops_t **psci_ops)

{

                return 0;

}

[1] https://git.trustedfirmware.org/TF-A/trusted-firmware-a.git/tree/plat/arm/common/arm_pm.c

Thanks,

Madhukar

From: TF-A <tf-a-bounces@lists.trustedfirmware.org> On Behalf Of IS20 Boaz Baron via TF-A
Sent: Wednesday, July 28, 2021 7:58 AM
To: tf-a@lists.trustedfirmware.org
Subject: [TF-A] A Q about TZ porting guide

Hi all,

I have a Q about plat_setup_psci_ops()  function implementation ,

In the porting guide, that function is defined as mandatory BUT the original (arm) function isn’t defined as #pargam WEAK.

what should I do? to use/ delete the original function?

Thanks,

Boaz.

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