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This patch fixes the "using plain integer as NULL pointer" warnings
generated by running sparse on the flashrom source.

Corresponding to flashrom svn r1255.
Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Acked-by: Mathias Krause <mathias.krause@secunet.com>
Acked-by: Stefan Reinauer <stepan@coreboot.org>

Implement all Dediprog commands found in USB traces, even if their
purpose is not yet known.
Annotate unknown commands with info about the call sequence they are
embedded in and the firmware version of the log.

Add a new shutdown command for firmware 5.x (of which Stefan thinks it's
"switch the Pass light on" hence it is called late in the game)

Corresponding to flashrom svn r1254.
Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: Stefan Reinauer <reinauer@google.com>

Don't print the local memory flash chip address on programmers that
don't actually map the flash chip into local memory (like the dediprog)
because the value does not make sense there.

This version was reworked / rewritten by Mathias Krause to have less
"impact"

Corresponding to flashrom svn r1253.
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Acked-by: Mathias Krause <mathias.krause@secunet.com>

This patch reduces the stack usage by declaring 'const' stack variables
as 'static const' so they end up in the .rodata section instead of being
copied from there to the stack for every invocation of the corresponding
function.

As a plus we end up in having a smaller binary as the "copy from .rodata
to stack" code isn't emitted by the compiler any more (roughly -100
bytes).

Corresponding to flashrom svn r1252.
Signed-off-by: Mathias Krause <mathias.krause@secunet.com>
Acked-by: Stefan Reinauer <stepan@coreboot.org>

Also bit 5 is the Erase/Program Error (EPE) bit, so has nothing to do
with the block protection. Ignore it when testing for block protections.

Corresponding to flashrom svn r1251.
Signed-off-by: Mathias Krause <mathias.krause@secunet.com>
Tested-by: Mathias Krause <mathias.krause@secunet.com>
Acked-by: Stefan Reinauer <stepan@coreboot.org>

The address part was using a bit of the size, the size was missing the
upper bit, was off by 1023 bytes and included the protection bits.

Corresponding to flashrom svn r1250.
Signed-off-by: Mathias Krause <mathias.krause@secunet.com>
Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>

This corrects a djgpp build error, seen with r1232 and later.

pcidev.c:210: error: conflicting types for 'rpci_write_long'
programmer.h:226: error: previous declaration of 'rpci_write_long' was here

Corresponding to flashrom svn r1249.
Signed-off-by: Idwer Vollering <vidwer@gmail.com>
Acked-by: Michael Karcher <flashrom@mkarcher.dialup.fu-berlin.de>

Add code for the unlocking (erasing/writing) of Winbond W39V040FB
chips, enabling erasing/writing this type of chip.

Corresponding to flashrom svn r1248.
Signed-off-by: Idwer Vollering <vidwer@gmail.com>
Acked-by: Michael Karcher <flashrom@mkarcher.dialup.fu-berlin.de>

Signed-off-by: David Hendricks <dhendrix@google.com>
Acked-by: Stefan Reinauer <stepan@coreboot.org>

Corresponding to flashrom svn r1247.

Suggested by Michael Karcher.

Corresponding to flashrom svn r1246.
Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: Michael Karcher <flashrom@mkarcher.dialup.fu-berlin.de>

Print lock status for all supported Winbond W39* chips:
W39V040A, W39V040B, W39V040C, W39V040FA, W39V040FB, W39V040FC,
W39V080A, W39V080FA, W39V080FA (dual mode).

Fill in correct probe timing for Winbond W39V040C and W39V080FA.

Please note that the W39V040B/W39V040FB pair has identical IDs,
identical read/write/erase, but locking differs. Same applies to
W39V040C/W39V040FC. This causes double detection on chipsets which
support LPC and FWH, making flashing more difficult because the user
has to select the correct chip. This is called the evil twin problem.
A better evil twin handling (patch available) will resolve that problem.

Corresponding to flashrom svn r1245.
Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: Michael Karcher <flashrom@mkarcher.dialup.fu-berlin.de>

Update a few comments and messages to improve readability.

Corresponding to flashrom svn r1244.
Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: Michael Karcher <flashrom@mkarcher.dialup.fu-berlin.de>

Corresponding to flashrom svn r1243.
Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>

Am29F016D, Am29F040B, Am29LV040B, Am29LV081B, A29002B, A29002T, A29040B, 
MX29F001B, MX29F001T, MX29F002B, MX29F002T, MX29LV040, M29F040B 

Corresponding to flashrom svn r1242.
Signed-off-by: David Borg <borg.db@gmail.com>
Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>

The project is in the the process of designing and making a complete,
open source, graphics card. More info at http://wiki.opengraphics.org

.

The first development card is a PCI add in card containing a couple of
FPGAs and a couple of serial flash chips (amongst other things). The
FPGAs are called XP10 and S3 (their part numbers). The XP10 contains its
own flash and does not need to be programmed by flashrom - it ensures
that the device can enumerate on the PCI bus without needing further
configuration.

The larger FPGA is the S3. This is configured from a large SPI flash
(2 MBytes). The second SPI flash is used to store the VGA BIOS. It is
smaller (128 KBytes). This patch adds support for programming either of
the two SPI flash chips.

The programmer device takes one configuration option which selects which
of the two flash chips is accessed. This must be set to either "cprom"
or "bprom". (The project refers to the two chips as "cprom" / "bprom",
"s3" and "bios" are more readable alternatives).

Add support for SST SST25VF010 (REMS). Mark SST SST25VF016B as tested
for write.

Corresponding to flashrom svn r1241.
Signed-off-by: Mark Marshall <mark.marshall@csr.com>
Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>

Lock access may involve flash chip registers which will not be mapped
if automatic detection failed.

Corresponding to flashrom svn r1240.
Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>

I found this via educated guessing and trial-and-error.

Corresponding to flashrom svn r1239.
Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de>
Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>

Corresponding to flashrom svn r1238.
Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: Michael Karcher <flashrom@mkarcher.dialup.fu-berlin.de>

Tested S25FL064A using a Bus Pirate.

Corresponding to flashrom svn r1237.
Signed-off-by: Rudy Host <segfault@committeeofdoom.com>
Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>

Handle BBAR on VIA.
Handle SPI lockdown on VIA.

Corresponding to flashrom svn r1236.
Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: Rudolf Marek <r.marek@assembler.cz>

Please note that the write speedup only applies to chips which have SPI
page write (i.e. chips using spi_chip_write_256).

This is a quick fix for write speed until I get around to implementing
full bulk SPI write support.

Corresponding to flashrom svn r1235.
Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: Richard A. Smith  <richard@laptop.org>
Acked-by: Mathias Krause <mathias.krause@secunet.com>

Should result in native speed for plain read and erase.
Should result in a measurable speedup for writes due to a fast verify.
Packet size is 512 bytes. Depending on your USB hardware and the
Dediprog firmware version, this may not work at all. That said, it
worked on the hardware we tested.

Add lots of error checking where it was missing before.

Thanks to Richard A. Smith, Mathias Krause and David Hendricks for
testing multiple iterations of this patch.

Corresponding to flashrom svn r1234.
Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: Richard A. Smith <richard@laptop.org>
Acked-by: Mathias Krause <mathias.krause@secunet.com>

Verify_range() and check_erased_range() check each page separately.
While that may have seemed like a good idea back when the code was
introduced, it has no benefits for any of the chips where we support
write because all of them handle cross-page reads nicely.
The only class of chips where this change could be a problem is chips
with non power of two sector sizes which have gaps in the address space.
We simply require their read functions to provide gap-free results
and leave it at that.

Corresponding to flashrom svn r1233.
Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: Michael Karcher <flashrom@mkarcher.dialup.fu-berlin.de>

This means all chipset enables etc. will be undone on shutdown.
Reversible PCI config space writes now use rpci_write_*().
PCI config space writes which are one-shot (e.g. communication via
config space) should continue to use the permanent pci_write_*
variants.

Extend the number of available register_shutdown slots to 32.

Corresponding to flashrom svn r1232.
Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: Michael Karcher <flashrom@mkarcher.dialup.fu-berlin.de>

Add support for the OpenMoko Neo1973/Neo FreeRunner debug board version
2 or 3 (vid:pid 1457:5118).

The new type is called "openmoko".

Information about the debug board can be found at
http://wiki.openmoko.org/wiki/Debug_Board_v3



Corresponding to flashrom svn r1231.
Signed-off-by: Alex Badea <vamposdecampos@gmail.com>
Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>

ft2232_spi ftdi_usb_open() is called with the constant FTDI_VID vendor
ID.

Fix it by using the programmer-type-dependent ft2232_vid variable, to
allow programmers with other vendor IDs.

Corresponding to flashrom svn r1230.
Signed-off-by: Alex Badea <vamposdecampos@gmail.com>
Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>

Check at init time whether the chip is a type 'H' (FT2232H or FT4232H).
If not, omit the disable-divide-by-5 (0x8a) command which can confuse
older chips.

Corresponding to flashrom svn r1229.
Signed-off-by: Alex Badea <vamposdecampos@gmail.com>
Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>

It is possible that ftdi_read_data() returns less data
than requested. Catch this case and retry reading the rest
of the buffer.

Corresponding to flashrom svn r1228.
Signed-off-by: Alex Badea <vamposdecampos@gmail.com>
Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>

Allow any firmware version from 2.x.y to 5.x.y.
Handle errors for the initial USB command to catch -EPERM.

Corresponding to flashrom svn r1227.
Signed-off-by: Mathias Krause <mathias.krause@secunet.com>
Acked-by: Patrick Georgi <patrick@georgi-clan.de>
Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>

Add a generic voltage parameter parser.
Move tolower_string() from dummyflasher.c to flashrom.c to make it
available everywhere.

Corresponding to flashrom svn r1226.
Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: Stefan Reinauer <stepan@coreboot.org>

Avoid two memory leaks in doit() which were unproblematic for flashrom
because flashrom terminates after finishing doit(). Rename oldcontents
to curconents in erase_and_write_block_helper(). Unify the code for
all granularities in get_next_write(). Return write length from
get_next_write() instead of filling it as referenced parameter.

Thanks to Michael Karcher for pointing out the first two issues. Thanks
to David Hendricks for pointing out the third issue and suggesting a way
to unify that code.

Corresponding to flashrom svn r1225.
Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: Michael Karcher <flashrom@mkarcher.dialup.fu-berlin.de>

If you write an image full of 0xff, flashrom will erase and detect that
no write is needed. If you write an image which differs only in some
parts from the current flash contents, flashrom will detect that and not
touch unchanged areas.

Fix a long-standing bug in need_erase() for 256 byte granularity as
well.

Nice side benefit: Detailed progress printing. S means skipped E means
erased W means written

Thanks to Andrew Morgan for testing countless iterations of this patch.
Thanks to Richard A. Smith for testing on Dediprog SF100. Thanks to
David Hendricks for the review and for creating a partial write torture
test script and testing with it on Intel NM10 and AMD SB700 SPI. Thanks
to Idwer Vollering for testing with Intel SPI NICs. Thanks to Rudolf
Marek for testing on AMD SB710 and SiI SATA controllers. Thanks to
Michael Karcher for the review.

Corresponding to flashrom svn r1224.
Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: David Hendricks <dhendrix@google.com>
Acked-by: Rudolf Marek <r.marek@assembler.cz>
Acked-by: Idwer Vollering <vidwer@gmail.com>
Acked-by: Michael Karcher <flashrom@mkarcher.dialup.fu-berlin.de>

If a layout file was specified, all regions not mentioned in the layout
file were taken from the new image instead of being preserved.
If regions overlap, the non-included regions won.

New behaviour:
If a layout file is specified, only the regions explicitly requested for
inclusion will be taken from the new image.
If regions overlap, the included regions win.

Corresponding to flashrom svn r1223.
Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: David Hendricks <dhendrix@google.com>

This serves as a sort of progress indicator.

The output looks like this::
localhost ~ # flashrom="./flashrom" sh flashrom_partial_write_test.sh
testing flashrom binary: ./flashrom
Running test in /tmp/tmp.4xPejwaADU
ffh pattern written in ff_4k.bin
00h pattern written in 00_4k.bin
Reading BIOS image
Original image saved as bios.bin
aligned region 0 test: passed
...
aligned region 15 test: passed
unaligned region 0 test: passed
...
unaligned region 15 test: passed
Result: PASSED
restoring original bios image using system's flashrom
test files remain in /tmp/tmp.4xPejwaADU

Corresponding to flashrom svn r1222.
Signed-off-by: David Hendricks <dhendrix@google.com>
Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>

Avoid non-portable seq.

Corresponding to flashrom svn r1221.
Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: Idwer Vollering <vidwer@gmail.com>

You have to choose between
- no emulation
- ST M25P10.RES SPI flash chip (RES, page write)
- SST SST25VF040.REMS SPI flash chip (REMS, byte write)
- SST SST25VF032B SPI flash chip (RDID, AAI write)
Example usage: flashrom -p dummy:emulate=SST25VF032B

Flash image persistence is available as well.
Example usage: flashrom -p dummy:image=dummy_simulator.rom

Allow setting the max chunksize for page write with the dummy
programmer.
Example usage: flashrom -p dummy:spi_write_256_chunksize=5

Flash emulation is compiled in by default. 

This code helped me find and fix various bugs in the SPI write code
as well as in the testsuite.

Corresponding to flashrom svn r1220.
Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: David Hendricks <dhendrix@google.com>

Replace "$flashrom_PARAM" with ${FLASHROM_PARAM} in
util/flashrom_partial_write_test.sh to avoid passing in quoted
parameters which can cause problems especially if flashrom_PARAM is
empty or contains spaces.

Corresponding to flashrom svn r1219.
Signed-off-by: David Hendricks <dhendrix@google.com>
Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>

Focus is on partial write and layout functionality.

Minor modifications by Carl-Daniel Hailfinger.

Corresponding to flashrom svn r1218.
Signed-off-by: David Hendricks <dhendrix@google.com>
Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>

The bug was invisible so far because we always started at offset 0. The
pending partial write patch uses nonzero start offsets and trips over
this bug.

Clarify a few comments in IT87 SPI.

Thanks to Idwer Vollering for reporting write breakage with my latest
partial write patch. This should fix the underlying problem.

Corresponding to flashrom svn r1217.
Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: Idwer Vollering <vidwer@gmail.com>

Previous probes might have had too short delays for entering ID mode,
so the chip may still be in the process of entering the ID mode. Due to
that, an additional delay before the reset makes sense.
Add FEATURE_RESET_MASK to deal cleanly with those feature bits.

Maciej Pijanka tested the patch and it fixes probing for him with some
old Atmel chips.

Corresponding to flashrom svn r1216.
Signed-off-by: Sean Nelson <audiohacked@gmail.com>
Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: Anders Juel Jensen <andersjjensen@gmail.com>
Tested-by: Maciej Pijanka <maciej.pijanka@gmail.com>
Acked-by: Sean Nelson <audiohacked@gmail.com>