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  1. 28 Jun, 2013 9 commits
  3. 20 Jun, 2013 1 commit
    • Stefan Tauner's avatar
      Fix unlocking function for most Atmel AT2[56]D* chips · cecb2c56
      Stefan Tauner authored 
      
I broke unlocking them correctly in r1635 while refactoring (NB: the
commit log including the overly selfconfident statement about the
"bug in spi_disable_blockprotect_at25df()").

Affected chips have per sector protection bits and the write protection bits
in the status register do indicate if none, some or all sectors are protected.
It is possible to globally (un)lock all sectors at once but in a way that was
not anticipated when refactoring the spi25 unlocking functions into
spi_disable_blockprotect_generic(). To globally unprotect not only the
protection bits (2 and 3) have 0 to be written to them but also bits 4 and 5
which normally would not be touched by spi_disable_blockprotect_generic().
Some of the chips also support a permanent lockdown with fuses which we
do not handle yet.

To fix this without copying the whole method I introduce another mask
parameter to spi_disable_blockprotect_generic() namely unprotect_mask.
See verbose comments inline for details.

Also, prettyprint the status register after trying to disable the block
protection fails.

Corresponding to flashrom svn r1679.
Signed-off-by: default avatarStefan Tauner <stefan.tauner@alumni.tuwien.ac.at>
Tested-by: default avatarChi Zhang <zhangchi866@gmail.com>
Acked-by: default avatarStefan Tauner <stefan.tauner@alumni.tuwien.ac.at>
      cecb2c56
  5. 09 Jun, 2013 1 commit
  7. 19 Apr, 2013 2 commits
  9. 16 Mar, 2013 1 commit
    • Stefan Tauner's avatar
      Fix evil twins of Macronix MX25L1605, MX25L3205, MX25L6405 · 226037da
      Stefan Tauner authored 
      Similarly to the patch in r1647 this one updates the chips identified as above
with references to and data about their respective twins. Unlike previously this
one deals with the more evil details.

Helge Wagner from GE discovered some problems with chips sharing IDs
and proposed a patch to tackle (some of) them, see:
http://patchwork.coreboot.org/patch/3709/
That patch was bitrotting in our mailboxes for a long time and it is still not
ready for merge, but we increasingly get reports about problems (e.g.
http://paste.flashrom.org/view.php?id=1525

) regarding these chips and
hence must act to ensure users' safety.

This patch splits the chip definitions of evil twins into separate ones which
correctly declare the respective attributes (the main problems are the erase
block sizes for the 0x20 opcode and hence my changes combine different
chips with partly different attributes apart from their names as long as the
erasers layout it the same). This forces the user to select the (right) chip
definition with the -c/--chip parameter and hence will break a number of
previously perfectly working environments.

0x2015 is used by and split to
 - MX25L1605 (64kB sectors in 0x20 erases)
 - MX25L1605A/MX25L1606E (4kB in 0x20 erases and an additional 0x52 opcode with 64kB blocks)
 - MX25L1605D/MX25L1608D (4k sectors in 0x20 erases)

0x2016 is used by and split to
 - MX25L3205/MX25L3205A (64kB 0x20)
 - MX25L3205D/MX25L3208D (4kB 0x20)
 - MX25L3206E (4k 0x20, 64k 0x52)

0x2017 is used by and split to
 - MX25L6405/MX25L6405D (64k 0x20)
 - MX25L6406E/MX25L6436E (4k 0x20)
 - MX25L6445E (4k 0x20, 64k 0x52)

Bonus: add some minor details to MX25L1635D, MX25L1635E, MX25L3235D,
MX25L12805D.

Tested with MX25L3206E, MX25L64036E.

Corresponding to flashrom svn r1657.
Signed-off-by: default avatarStefan Tauner <stefan.tauner@alumni.tuwien.ac.at>
Acked-by: default avatarStefan Tauner <stefan.tauner@alumni.tuwien.ac.at>
      226037da
  11. 04 Mar, 2013 1 commit
  13. 22 Feb, 2013 1 commit
  15. 02 Feb, 2013 1 commit
  17. 01 Jan, 2013 1 commit
  19. 29 Dec, 2012 2 commits
    • Stefan Tauner's avatar
      Add support for Atmel's AT25F series of SPI flash chips · 57794ac1
      Stefan Tauner authored 
      
This adds support for the following chips:
 - AT25F512, AT25F512A, AT25F512B
 - AT25F1024, AT25F1024A
 - AT25F2048
 - AT25F4096

Besides the definitions of the the chips in flashchips.c this includes
- a dedicated probing method (probe_spi_at25f)
- pretty printing methods (spi_prettyprint_status_register_at25f*), and
- unlocking methods (spi_disable_blockprotect_at25f*)

Corresponding to flashrom svn r1637.
Signed-off-by: default avatarStefan Tauner <stefan.tauner@alumni.tuwien.ac.at>
Acked-by: default avatarStefan Tauner <stefan.tauner@alumni.tuwien.ac.at>
      57794ac1
    • Stefan Tauner's avatar
      Add support for Intel S33 series flash chips · 54aaa4ae
      Stefan Tauner authored 
      
This includes:
Bottom boot block:
* 16Mb/2MB:
  QB25F160S33B8, QB25F016S33B8, QH25F160S33B8, QH25F016S33B8
* 32Mb/4MB:
  QB25F320S33B8, QH25F320S33B8
* 64Mb/8MB:
  QB25F640S33B8, QH25F640S33B8

Top boot block:
* 16Mb/2MB:
  QB25F160S33T8, QB25F016S33T8, QH25F160S33T8, QH25F016S33T8
* 32Mb/4MB:
  QB25F320S33T8, QH25F320S33T8
* 64Mb/8MB:
  QB25F640S33T8, QH25F640S33T8

At least some seem to be marketed by other vendors (too?) but also with
Intel's vendor ID.

Besides a 0xC7 chip erase and a 0xD8 uniform 64kB block erase they
support also erasing the top/bottom 8 8kB blocks with opcode 0x40.
But since this command fails for all addresses outside those ranges,
it is not easily implemented with flashrom's current code base and
hence left out.

Corresponding to flashrom svn r1636.
Signed-off-by: default avatarStefan Tauner <stefan.tauner@alumni.tuwien.ac.at>
Acked-by: default avatarStefan Tauner <stefan.tauner@alumni.tuwien.ac.at>
      54aaa4ae
  21. 28 Oct, 2012 1 commit
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  37. 14 Apr, 2012 3 commits
  39. 17 Feb, 2012 1 commit
  41. 16 Feb, 2012 1 commit
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  47. 08 Sep, 2011 1 commit
  49. 03 Sep, 2011 1 commit
  51. 24 Jul, 2011 1 commit
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  55. 06 Mar, 2011 1 commit

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