On Tue, Mar 25, 2014 at 3:39 PM, <BM-2cWKH3wgq8zXX9eHfba16oTc8b61ead4Yq@bitmessage.ch> wrote:

Is there a limit to the number of times write protection can be
disabled/enabled on a board, given that the hardware has been sufficiently
prepped?

I don't think there is a practical limit. The flash memory itself usually has maximum durability of 10's or 100's of thousands of erase/write cycles. I am not entirely sure about the status register where write protect info is stored, though.

If I use flashrom to disable write protection on a board, then do
nothing, then enable write protection again, there shouldn't be any reason
I can't just disable write protection again later, correct?

Correct, assuming you do not make changes to the hardware. If /WP is asserted when the write-protect enable bit is set in the status register, then write-protection will be re-enabled. Then you will need to de-assert /WP before clearing the enable bit.

--
David Hendricks (dhendrix)
Systems Software Engineer, Google Inc.