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  1. 12 Feb, 2012 1 commit
  3. 08 Feb, 2012 1 commit
    • Carl-Daniel Hailfinger's avatar
      SPI command black-/ignorelisting for the flash chip emulator in the dummy programmer · 1b83be5c
      Carl-Daniel Hailfinger authored 
      
Usage:
flashrom -p dummy:spi_blacklist=commandlist
flashrom -p dummy:spi_ignorelist=commandlist

If commandlist is 0302, flashrom will refuse (blacklist) or ignore
(ignorelist) command 0x03 (READ) and command 0x02 (WRITE). The
commandlist can be up to 512 bytes (256 commands) long.
Specifying flash chip emulation is a good idea to get useful results.

Very useful for testing corner cases if you don't own a locked down
Intel chipset and want to simulate such a thing.

Example usage:
dd if=/dev/zeros bs=1024k count=4 of=dummy_simulator.rom
dd if=/dev/urandom bs=1024k count=4 of=randomimage.rom
flashrom -p dummy:emulate=SST25VF032B,image=dummy_simulator.rom,\
spi_blacklist=20,spi_ignorelist=52 -w randomimage.rom -V

Corresponding to flashrom svn r1490.
Signed-off-by: default avatarCarl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: default avatarDavid Hendricks <dhendrix@google.com>
      1b83be5c
  5. 07 Feb, 2012 1 commit
  7. 03 Feb, 2012 1 commit
  9. 31 Jan, 2012 1 commit
  11. 19 Jan, 2012 1 commit
  13. 12 Jan, 2012 1 commit
  15. 11 Jan, 2012 1 commit
  17. 04 Jan, 2012 1 commit
  19. 25 Dec, 2011 2 commits
  21. 24 Dec, 2011 1 commit
    • Stefan Tauner's avatar
      Add ich_descriptor_tool to decode all flash descriptors stored in a flash dump file · b3850964
      Stefan Tauner authored 
      
This patch adds an external utility that shares most of the existing descriptor
decoding source code. Additionally to what is available via FDOC/FDOD this
allows to access:
 - the softstraps which are used to configure the chipset by flash content
   without the need for BIOS routines. on ICH8 it is possible to read those
   with FDOC/FDOC too, but this was removed in later chipsets.
 - the ME VSCC (Vendor Specific Component Capabilities) table. simply put,
   this is an SPI chip database used to figure out the flash's capabilities.
 - the MAC address stored in the GbE image.

Intel thinks this information should be confidential for ICH9 and up, but
references some tidbits in their public documentation.
This patch includes the human-readable information for ICH8, Ibex Peak
(5 series) and Cougar Point (6 series); the latter two were obtained from
leaked "SPI Flash Programming Guides" found by google. Data regarding ICH9
and 10 is unknown to us yet. It can probably found in:
"Intel® ICH7, ICH8, ICH9 and ICH10 — SPI Family Flash Programming Guide"
Information regarding the upcoming Panther Point chipset is also not included.

Corresponding to flashrom svn r1480.
Signed-off-by: default avatarStefan Tauner <stefan.tauner@alumni.tuwien.ac.at>
Acked-by: default avatarMatthias Wenzel <bios@mazzoo.de>
      b3850964
  23. 22 Dec, 2011 1 commit
  25. 20 Dec, 2011 4 commits
  27. 18 Dec, 2011 1 commit
  29. 14 Dec, 2011 1 commit
    • Carl-Daniel Hailfinger's avatar
      Use struct flashctx instead of struct flashchip for flash chip access · 63fd9026
      Carl-Daniel Hailfinger authored 
      
Struct flashchip is used only for the flashchips array and for
operations which do not access hardware, e.g. printing a list of
supported flash chips.

struct flashctx (flash context) contains all data available in
struct flashchip, but it also contains runtime information like
mapping addresses. struct flashctx is expected to grow additional
members over time, a prime candidate being programmer info.
struct flashctx contains all of struct flashchip with identical
member layout, but struct flashctx has additional members at the end.

The separation between struct flashchip/flashctx shrinks the memory
requirement of the big flashchips array and allows future extension
of flashctx without having to worry about bloat.

Corresponding to flashrom svn r1473.
Signed-off-by: default avatarCarl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: default avatarMichael Karcher <flashrom@mkarcher.dialup.fu-berlin.de>
      63fd9026
  31. 08 Dec, 2011 1 commit
  33. 02 Dec, 2011 1 commit
  35. 23 Nov, 2011 1 commit
  37. 19 Nov, 2011 1 commit
  39. 16 Nov, 2011 1 commit
  41. 15 Nov, 2011 1 commit
  43. 14 Nov, 2011 1 commit
  45. 13 Nov, 2011 2 commits
  47. 09 Nov, 2011 1 commit
  49. 08 Nov, 2011 2 commits
  51. 06 Nov, 2011 1 commit
    • Stefan Tauner's avatar
      ichspi: use a variable to distinguish ich generations instead of spi_programmer->type · a8d838d9
      Stefan Tauner authored 
      
The type member is enough most of the time to derive the wanted
information, but
 - not always (e.g. ich_set_bbar),
 - only available after registration, which we want to delay till the
   end of init, and
 - we really want to distinguish between chipset version-grained
   attributes which are not reflected by the registered programmer.

Hence this patch introduces a new static variable which is set up
early by the init functions and allows us to get rid of all "switch
(spi_programmer->type)" in ichspi.c. We reuse the enum introduced
for descriptor mode for the type of the new variable.

Previously magic numbers were passed by chipset_enable wrappers. Now
they use the enumeration items too. To get this working the enum
definition had to be moved to programmer.h.

Another noteworthy detail: previously we have checked for a valid
programmer/ich generation all over the place. I have removed those
checks and added one single check in the init method. Calling any
function of a programmer without executing the init method first, is
undefined behavior.

Corresponding to flashrom svn r1460.
Signed-off-by: default avatarStefan Tauner <stefan.tauner@alumni.tuwien.ac.at>
Acked-by: default avatarCarl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
      a8d838d9
  53. 04 Nov, 2011 1 commit
  55. 02 Nov, 2011 1 commit
  57. 22 Oct, 2011 2 commits
  59. 21 Oct, 2011 2 commits
  61. 20 Oct, 2011 2 commits

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