Hello NXP team,
I am working in a project with the uC. iMX8DXL and during the execution of the Software there is a reset caused by the SCU. This question is to ask for your support to know what inside the SCFW code determines if there should be a request to reset from the SCU.
The SCFW version we use is L5.4.70_2.3.11
The SCU reset is requested from the file board.c inside SCFW.
void board_fault(sc_bool_t restarted, sc_bfault_t reason,
sc_rm_pt_t pt)
...
/* Fault just occurred, need to reset */
(void) board_reset(SC_PM_RESET_TYPE_BOARD,
SC_PM_RESET_REASON_SCFW_FAULT, pt);
The triggering events for a board_fault() function call are as follows:
void board_cpu_reset(sc_rsrc_t resource, board_cpu_rst_ev_t reset_event,
sc_rm_pt_t pt)
{...
/* Treat lockups or parity/ECC reset events as board faults */
if ((reset_event == BOARD_CPU_RESET_LOCKUP) ||
(reset_event == BOARD_CPU_RESET_MEM_ERR))
{
board_fault(SC_FALSE, BOARD_BFAULT_CPU, pt);
}
...
}
void board_sec_fault(uint8_t abort_module, uint8_t abort_line,
sc_sfault_t reason)
{
...
if (reason != BOARD_SFAULT_V2X_SER_ERR)
{
board_fault(SC_FALSE, BOARD_BFAULT_SEC_FAIL, SECO_PT);
}
...
}
Is our deduction correct, that the reset was caused by one or more of the following occurrences:
- CPU reset lockup.
- Parity/ECC memory error.
- SECO error
Which are the considerations inside the SCFW to request a reset in each case?
