[flashrom] Where is read lock typically implemented?

Ross Amans ross.amans at sanmina.com
Tue Aug 5 20:32:14 CEST 2014


David -
The PCH is enforcing all these write / read protections. The SPI controller
lives in the PCH.
Ross


On Tue, Aug 5, 2014 at 12:23 PM, David Hendricks <dhendrix at google.com>
wrote:

> On Tue, Aug 5, 2014 at 9:55 AM, TR Reardon <thomas_reardon at hotmail.com>
> wrote:
>
>> I tried looking for an answer to this but a quick one didn't surface:
>> when flash regions are protected, is this implemented by the flash chip
>> itself or by the SPI logic (ie ichspi for Intel programmer)?
>>
>
> It can be implemented by either, though in most cases it's the SPI
> controller on Intel systems.
>
> --
> David Hendricks (dhendrix)
> Systems Software Engineer, Google Inc.
>
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>



-- 
Ross Amans
Systems Engineer
Newisys div of Sanmina
5385 Mark Dabling blvd
Colorado Springs, CO 80918
719-884-8714 (work)
719-287-4446 (cell)

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