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authorStefan Tauner <stefan.tauner@alumni.tuwien.ac.at>2012-07-28 03:17:15 +0000
committerStefan Tauner <stefan.tauner@alumni.tuwien.ac.at>2012-07-28 03:17:15 +0000
commitd94d25d75be771eec26578355dc5c70cfb3e9c73 (patch)
treed2cb1083a5fa9dd1274213c17bc4ede903913d3d /Documentation
parenta0fce5f459871840166348de1451fd8cd8bb9cb8 (diff)
downloadast2050-flashrom-d94d25d75be771eec26578355dc5c70cfb3e9c73.zip
ast2050-flashrom-d94d25d75be771eec26578355dc5c70cfb3e9c73.tar.gz
Add a bunch of new/tested stuff and various small changes 13
Tested Mainboards: OK: - ASRock A780FullHD http://www.flashrom.org/pipermail/flashrom/2012-July/009599.html - ASRock 880G Pro3 http://www.flashrom.org/pipermail/flashrom/2012-July/009492.html - ASRock N61P-S http://www.flashrom.org/pipermail/flashrom/2012-May/009316.html - ASUS M2N68-VM http://www.flashrom.org/pipermail/flashrom/2012-May/009334.html - ASUS M3N78 PRO http://www.flashrom.org/pipermail/flashrom/2012-July/009519.html - ASUS M4N68T V2 http://www.flashrom.org/pipermail/flashrom/2012-May/009277.html - ASUS M5A78L-M LX reported by clavile on IRC - ASUS P8P67 PRO (rev. 3.0) http://www.flashrom.org/pipermail/flashrom/2012-April/009188.html - ASUS P8Z68-V reported by Kano on IRC http://paste.flashrom.org/view.php?id=1232 - ASUS SABERTOOTH 990FX http://paste.flashrom.org/view.php?id=1214 - Dell Inspiron 1420 http://www.flashrom.org/pipermail/flashrom/2012-May/009196.html - ECS GF8200A http://www.flashrom.org/pipermail/flashrom/2012-May/009256.html - GIGABYTE GA-H61M-D2H-USB3 http://www.flashrom.org/pipermail/flashrom/2012-May/009333.html - MSI MS-7250 (K9N SLI (rev 2.1)) http://www.flashrom.org/pipermail/flashrom/2012-June/009436.html - MSI MS-7676 (Z68MA-G45 (B3)) http://www.flashrom.org/pipermail/flashrom/2012-June/009424.html - Palit N61S http://www.flashrom.org/pipermail/flashrom/2012-May/009212.html NOT OK: - ASRock H61M-ITX http://www.flashrom.org/pipermail/flashrom/2012-May/009224.html - Dell Latitude E6520 http://www.flashrom.org/pipermail/flashrom/2012-May/009197.html - Dell Vostro 3700 http://www.flashrom.org/pipermail/flashrom/2012-May/009197.html - Intel DH61AG http://www.flashrom.org/pipermail/flashrom/2012-June/009417.html - Intel DQ965GF http://www.flashrom.org/pipermail/flashrom/2012-May/009295.html - HP/Compaq 8100 Elite CMT PC (304Bh) http://paste.flashrom.org/view.php?id=1182 - HP Z400 Workstation (0AE4h) http://www.flashrom.org/pipermail/flashrom/2012-June/009350.html - Supermicro X9DR3-F http://www.flashrom.org/pipermail/flashrom/2012-June/009422.html Tested flash chips: - mark AMIC A25L032 as TEST_OK_PREW (+PREW) http://www.flashrom.org/pipermail/flashrom/2012-June/009363.html - mark Atmel AT25DF321A as TEST_OK_PREW (+REW) http://www.flashrom.org/pipermail/flashrom/2012-July/009492.html - mark Atmel AT26DF161 as TEST_OK_PR (+PR) http://www.flashrom.org/pipermail/flashrom/2012-June/009350.html - mark Eon EN25QH16 as TEST_OK_PR (+PR) http://www.flashrom.org/pipermail/flashrom/2012-July/009566.html - mark SST SST39VF010 as TEST_OK_PREW (+W) http://www.flashrom.org/pipermail/flashrom/2012-June/009425.html - mark ST M25P64 as TEST_OK_PREW (+PREW) http://www.flashrom.org/pipermail/flashrom/2012-May/009332.html Tested chipset enables: - Intel 3420 http://www.flashrom.org/pipermail/flashrom/2012-May/009332.html - Add board enable for ASUS P5GD2-X lspci: http://paste.flashrom.org/view.php?id=1234 write: http://paste.flashrom.org/view.php?id=1240 Miscellaneous - Reorder some boards in print.c. - Remove broken abit URLs. - Whitespace changes. - Fix the maximum number of southbridge straps in the ICH descriptor structs. - Refine documentation regarding ICH region lock bits. - Demote verbosity of ICH Opcode reprogramming to -VV. - Exclude Pony-SPI for DOS targets (missing serial support). Corresponding to flashrom svn r1554. Signed-off-by: Stefan Tauner <stefan.tauner@alumni.tuwien.ac.at> Acked-by: Stefan Tauner <stefan.tauner@alumni.tuwien.ac.at>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/mysteries_intel.txt19
1 files changed, 16 insertions, 3 deletions
diff --git a/Documentation/mysteries_intel.txt b/Documentation/mysteries_intel.txt
index 55921cf..10cb37d 100644
--- a/Documentation/mysteries_intel.txt
+++ b/Documentation/mysteries_intel.txt
@@ -14,10 +14,18 @@
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 =
+= (Un)locking the ME region =
If the ME region is locked by the FRAP register in descriptor mode, the host
- software is not allowed to read or write any address inside that region. There
- are different ways to unlock access:
+ software is not allowed to read or write any address inside that region.
+ Although the chipset datasheets specify that "[t]he contents of this register
+ are that of the Flash Descriptor" [PANTHER], this is not entirely true.
+ The firmware has to fill at least some of the registers involved. It is not
+ known when they become read-only or any other details, but there is at least
+ one HM67-based board, that provides an user-changeable setting in the firmware
+ user interface to enable ME region updates that lead to a FRAP content that is
+ not equal to the descriptor region bits [NC9B].
+
+ There are different ways to unlock access:
- A pin strap: Flash Descriptor Security Override Strap (as indicated by the
Flash Descriptor Override Pin Strap Status (FDOPSS) in HSFS. That pin is
@@ -81,6 +89,11 @@
vendor tools use it for updates. This needs to be investigated further before
drawing any conclusion.
+[PANTHER] Intel 7 Series Chipset Family Platform Controller Hub (PCH) Datasheet
+ Document Number: 326776, April 2012, page 857
+[NC9B] Jetway NC9B flashrom v0.9.5.2-r1517 log with ME region unlocked.
+ NB: "FRAP 0e0f" vs. "FLMSTR1 0a0b".
+ http://paste.flashrom.org/view.php?id=1215
[MODE_CTRL] Client Platform Enabling Tour: Platform Software
Document Number: 439167, Revision 1.2, page 52
[MEBX] Intel Management Engine BIOS Extension (MEBX) User's Guide
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