We are trying to design the sleep and wake-up sequence for imxqm.
1. on the power down interrupt(mapped to GPIO),(code is executing in DDR)
|(Jump to function executing in OCRAM)
2. Set IRQ_STEER(mapped to GPIO) as wake up mode.
3. Send commands to SCFW to DDR (self-refresh)and all A53 to suspend mode.
4. Wait for SCU to wake up a53 cores.
5. Execute the wake-up sequence from OCRAM.
Is my understanding on sleep and wake-up sequence right?
