[flashrom] [commit] r1465 - in trunk: . Documentation

repository service svn at flashrom.org
Mon Nov 14 00:03:31 CET 2011

Author: stefanct
Date: Mon Nov 14 00:03:30 2011
New Revision: 1465
URL: http://flashrom.org/trac/flashrom/changeset/1465

Create a directory for documentation files

Move the serprog specification there and document a few things we could not
figure out on intel platforms yet.

Signed-off-by: Stefan Tauner <stefan.tauner at student.tuwien.ac.at>
Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006 at gmx.net>

   trunk/Documentation/mysteries_intel.txt   (contents, props changed)
   trunk/Documentation/serprog-protocol.txt   (contents, props changed)
      - copied, changed from r1464, trunk/serprog-protocol.txt

Added: trunk/Documentation/mysteries_intel.txt
--- /dev/null	00:00:00 1970	(empty, because file is newly added)
+++ trunk/Documentation/mysteries_intel.txt	Mon Nov 14 00:03:30 2011	(r1465)
@@ -0,0 +1,18 @@
+= BBAR on ICH8 =
+ There is no sign of BBAR (BIOS Base Address Configuration Register) in the
+ public datasheet (or specification update) of the ICH8. Also, the offset of
+ that register has changed between ICH7 (SPIBAR + 50h) and ICH9 (SPIBAR +
+ A0h), so we have no clue if or where it is on ICH8. Out current policy is to
+ not touch it at all and assume/hope it is 0.
+= Accesses beyond region bounds in descriptor mode =
+ Intel's flash image tool will always expand the last region so that it covers
+ the whole flash chip, but some boards ship with a different configuration.
+ It seems that in descriptor mode all addresses outside the used regions can not
+ be accessed whatsoever. This is not specified anywhere publicly as far as we
+ could tell. flashrom does not handle this explicitly yet. It will just fail
+ when trying to touch an address outside of any region.
+ See also http://www.flashrom.org/pipermail/flashrom/2011-August/007606.html
+= Unlocking the ME region =

Copied and modified: trunk/Documentation/serprog-protocol.txt (from r1464, trunk/serprog-protocol.txt)

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