#1193 HIGH Trial-3: 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:  rsmith 
      Type:  task                 |      Status:  new    
  Priority:  high                 |   Milestone:  Trial-3
 Component:  embedded controller  |     Version:         
Resolution:                       |    Keywords:         
  Verified:  0                    |  
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Comment (by rsmith):

 Replying to [comment:12 wmb at firmworks.com]:
 > This is contingent upon #978 ( http://dev.laptop.org/ticket/978 ).
 >
 > We cannot disable indexed I/O access to the EC until the (secure)
 automatic firmware reprogramming is implemented, because indexed I/O is
 necessary for SPI reflashing.

 I was going to have OFW disable the indexed IO at the same time it write
 protects the ROM and leave it enabled in the EC permanently.

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Ticket URL: <http://dev.laptop.org/ticket/1193#comment:13>
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