Also, those functions aren't defined as WEAK so I encountered the same problem (multiple definitions) plat_crash_console_putc plat_crash_console_flush platform_mem_init

From: IS20 Boaz Baron Sent: Thursday, July 29, 2021 10:14 AM To: Madhukar Pappireddy Madhukar.Pappireddy@arm.com Cc: tf-a@lists.trustedfirmware.org; IN20 Hila Miranda-Kuzi Hila.Miranda-Kuzi@nuvoton.com Subject: RE: [TF-A] A Q about TZ porting guide

Thanks Madhukar for your answer, I think I wasn't so clear. plat_setup_psci_ops is listed as mandatory in the porting guide. I implemented it locally but linkage fails because it is also defined in arm_pm.c. How do you suggest to avoid this multiple definition?

Thanks, Boaz.

From: Madhukar Pappireddy <Madhukar.Pappireddy@arm.commailto:Madhukar.Pappireddy@arm.com> Sent: Wednesday, July 28, 2021 10:44 PM To: IS20 Boaz Baron <boaz.baron@nuvoton.commailto:boaz.baron@nuvoton.com> Cc: tf-a@lists.trustedfirmware.orgmailto:tf-a@lists.trustedfirmware.org Subject: RE: [TF-A] A Q about TZ porting guide

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/co...https://apc01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgit.trustedfirmware.org%2FTF-A%2Ftrusted-firmware-a.git%2Ftree%2Fplat%2Farm%2Fcommon%2Farm_pm.c&data=04%7C01%7Cboaz.baron%40nuvoton.com%7C2d4765f770c344773ce908d952001fe8%7Ca3f24931d4034b4a94f17d83ac638e07%7C0%7C0%7C637630983241943943%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C2000&sdata=kZdWQGSsfWIkmuQoAzJwHXDLqojWZeBVLb4rZDUdGZA%3D&reserved=0

Thanks, Madhukar

From: TF-A <tf-a-bounces@lists.trustedfirmware.orgmailto: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.orgmailto: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?

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