[Security] About secureboot enable

Gideon — Mon, 12 Aug 2024 08:08:22 GMT

Dear NXPs：

ARCH：S32K146

OS:freeRTOS

I want to call the SystemSoftwareReset interface immediately after calling the Secureboot Enable interface. Will there be any problem?
CODE:
/* enable secureboot SERIAL Mode */
(void)CSEC_DRV_BootDefine(BM_BOOT_SIZE, CSEC_BOOT_SERIAL);
/* Reset process. */
SystemSoftwareReset();

The reason for doing this is mainly to reduce one manual power operation on the production line, so that the startup process becomes: call Secureboot Enable interface → SystemSoftwareReset → Secureboot Enabled → Free RTOS Startup.

void SystemSoftwareReset(void)

{

uint32_t regValue;

/* Read Application Interrupt and Reset Control Register */

regValue = S32_SCB->AIRCR;

/* Clear register key */

regValue &= ~( S32_SCB_AIRCR_VECTKEY_MASK);

/* Configure System reset request bit and Register Key */

regValue |= S32_SCB_AIRCR_VECTKEY(FEATURE_SCB_VECTKEY);

regValue |= S32_SCB_AIRCR_SYSRESETREQ(0x1u);

/* Write computed register value */

S32_SCB->AIRCR = regValue;

}

topic [Security] About secureboot enable in S32K

[Security] About secureboot enable