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  1. 06 May, 2012 1 commit
  3. 16 Feb, 2012 2 commits
  5. 20 Dec, 2011 1 commit
    • Carl-Daniel Hailfinger's avatar
      Have all programmer init functions register bus masters/programmers · c40cff7b
      Carl-Daniel Hailfinger authored 
      All programmer types (Parallel, SPI, Opaque) now register themselves
into a generic programmer list and probing is now programmer-centric
instead of chip-centric.
Registering multiple SPI/... masters at the same time is now possible
without any problems. Handling multiple flash chips is still unchanged,
but now we have the infrastructure to deal with "dual BIOS" and "one
flash behind southbridge and one flash behind EC" sanely.

A nice side effect is that this patch kills quite a few global variables
and improves the situation for libflashrom.

Hint for developers:
struct {spi,par,opaque}_programmer now have a void *data pointer to
store any additional programmer-specific data, e.g. hardware
configuration info.

Note:
flashrom -f -c FOO -r forced_read.bin
does not work anymore. We have to find an architecturally clean way to
solve this.

Corresponding to flashrom svn r1475.

Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006...
      c40cff7b
  7. 18 Dec, 2011 1 commit
  9. 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
  11. 23 Nov, 2011 1 commit
  13. 13 Nov, 2011 1 commit
  15. 09 Nov, 2011 1 commit
  17. 08 Nov, 2011 2 commits
  19. 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
  21. 20 Oct, 2011 1 commit
  23. 18 Sep, 2011 1 commit
  25. 17 Sep, 2011 4 commits
  27. 15 Sep, 2011 1 commit
    • Stefan Tauner's avatar
      ichspi: add ICH/PCH flash descriptor decoding via FDOC/FDOD · 1e14639f
      Stefan Tauner authored 
      
Based on the work of Matthias 'mazzoo' Wenzel this patch adds pretty
printing of those ICH/PCH flash descriptor sections that are
cached/mapped by the chipset (and which are therefore reachable via
FDOC/FDOD registers).

this includes the following:
- content section:
    describes the image and some generic properties (number of
    sections, offset of sections, PCH/ICH and MCH/PROC strap
    offsets and lengths)
- component section:
    identify the different SPI flash chips and their capabilities.
- region section
    similarly to a partition table this describes the different regions.
    the content of FLREG* is derived from this section.
- master section
    defines SPI master (host, ME, GbE) access rights of the
    individual regions. the content of PR* is derived from this section.

this is only a part of the data included in the descriptor. other
information can be retrieved from a complete binary dump of the
descriptor region only.

this patch also adds macros and pretty printing for "Vendor Specific
Component Capabilities" registers: there are two of them: lower and
upper. they describe the properties of the address space divided by
FPBA (which allows to use multiple flash chips or partitions with
different properties). the properties of all supported flash chips
(together with their RDIDs) are stored in the same format in table
in a descriptor section (which is used by the ME apparently). a
later patch will use the macros outside of ichspi.c which is the
reason why the prettyprinting function and the register bit macros
are not defined in ichspi.c but ich_descriptors.h (else they would
be moved in the follow-up patch).

because this patch relies on (compiler) implementation-specific
layouting of bit-fields, it checks for correct layout before taking
any action on runtime.

Corresponding to flashrom svn r1443.
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>
      1e14639f
  29. 16 Aug, 2011 1 commit
  31. 09 Aug, 2011 1 commit
  33. 28 Jul, 2011 1 commit
  35. 27 Jul, 2011 1 commit
  37. 24 Jul, 2011 1 commit
  39. 07 Jul, 2011 1 commit
  41. 01 Jul, 2011 4 commits
  43. 12 Jun, 2011 1 commit
  45. 11 Jun, 2011 4 commits
  47. 28 May, 2011 1 commit
  49. 26 May, 2011 1 commit
  51. 19 May, 2011 1 commit
  53. 11 May, 2011 2 commits
  55. 03 May, 2011 1 commit

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