Randall Spangler ab727c4941 Add more paranoia for flash write protect ...

If the entire flash is protected (as it normally is after software
sync), fail all flash write/erase operations.

Add a shadow copy of the all_now flag.

BUG=chrome-os-partner:16727
BRANCH=link
TEST=manual

Verify that flash operations work properly before all_now.  Then enable HW WP
and
   flashwp enable
   flashwp now
and try
   flasherase 0x38000 0x1000
   flashwrite 0x38000 0x100
Those commands should fail with error 7

From the host side
   ectool flasherase 0x38000 0x1000
   echo 'Khaaaaaaaaaaan' > /tmp/b16727
   ectool flashwrite 0x38000 /tmp/b16727
should also fail.

Change-Id: I99a4d2bb86080bd12c900582a8fbdfc79c99916c
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/39517
Reviewed-by: Bill Richardson <wfrichar@chromium.org>

2012-12-10 15:42:21 -08:00

..

lm4

Add more paranoia for flash write protect

2012-12-10 15:42:21 -08:00

stm32

stm32: Implement keyscan test infrastructure

2012-10-31 17:21:00 -07:00