os/arch/arm/src/amebasmart: Add reboot reason for CA32 ATF Secure Fault - Githubissues

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os/arch/arm/src/amebasmart: Add reboot reason for CA32 ATF Secure Fault #6274

Open ZhenBei-Sin opened 4 days ago

ZhenBei-Sin commented 4 days ago

Change Notes:

Secure ATF implemented Secure Reboot Reason=253
CA32 Secure ATF doesn't have OS, no implementation for CA32 Secure Watchdog WDG3
When CA32 occurred Secure Fault will write the Reboot Reason to BKUP_REG2， it will rely on CA32 NonSecure WDG4 to Reset
BKUP_REG2 is use to distinguish whether the fault originated from the CA32 Secure or NonSecure
Concern: Secure Fault will rely on NonSecure Watchdog to trigger Reset.

Reboot Log: up_initialize: [Reboot Reason] : 253