Spot on. Even the power supplies providing all the different power domains have to be booted up in a precise sequence. Companies like Marvell usually sell a sui

Spot on. Even the power supplies providing all the different power domains have to be booted up in a precise sequence. Companies like Marvell usually sell a suite of power management chips just to deal with that - and extract more money out of customers cause no one can be bothered to stray too far from the reference design.