#1193 HIGH MP Star: Disable CPU access to EC RAM and I/O

[Zarro Boogs per Child]

#1193: Disable CPU access to EC RAM and I/O
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  Reporter:  wmb at firmworks.com    |       Owner:  wmb at firmworks.com
      Type:  task                 |      Status:  new              
  Priority:  high                 |   Milestone:  MP Start         
 Component:  embedded controller  |     Version:                   
Resolution:                       |    Keywords:                   
  Verified:  0                    |  
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Comment(by wmb at firmworks.com):

 Indexed I/O turn-off is essentially equivalent to setting the write-
 protect latch.  In fact it might be strong enough that the write-protect
 latch is essentially redundant.

 The right time to turn off indexed I/O is when we have our ducks in a row
 with regard to secure firmware auto-updates, so yes, it needs to be
 contingent on the WP tag, but we can't do it until the firmware update
 thing is solid.

-- 
Ticket URL: <https://dev.laptop.org/ticket/1193#comment:18>
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