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iMx6Q sata register access.. thoughts?

Question asked by John Ballance on Jul 29, 2014
Latest reply on Jul 30, 2014 by John Ballance

Hi Folks,


I have an oddity here. Bare metal system. SATA registers return NULL at all addresses. Should I be able to read the SATA registers (before any OS running, just early stages of booting)?


Is there anything that HAS to be initialised before the registers return anything? ATM I cannot see anything that has to be set, but registers always return NULL. Booting Linux confirms the HW is running. .. I need to control it BEFORE linux.


Any thoughts appreciated.  MUST be doing something silly here..