linux-toradex.git/include/linux/mtd/cfi.h, branch v2.6.35.1

mtd: chips: use common manufacturer codes in jedec_probe()

2010-05-14T00:48:58+00:00

Factor out old manufacturers and use the generic ones from cfi.h

Signed-off-by: Wolfram Sang 
Signed-off-by: David Woodhouse

mtd: cfi_probe: add support for SST 0x0701 vendorname

2010-05-14T00:08:11+00:00

SST 39VF160x and 39VF320x chips use vendorname id 0x0701 and alternative
unlock addresses. Add support for them in cfi_probe.c.

Signed-off-by: Guillaume LECERF 
Reviewed-by: Wolfram Sang 
Signed-off-by: David Woodhouse

mtd: move more manufacturers to the common cfi.h header file

2010-02-26T16:45:52+00:00

Move MANUFACTURER_MACRONIX and MANUFACTURER_SST definitions to the
include/linux/mtd/cfi.h header file and rename them to CFI_MFR_MACRONIX and
CFI_MFR_SST.

All references in drivers/mtd/chips/cfi_cmdset_0002.c are updated to reflect
this.

Signed-off-by: Guillaume LECERF 
Signed-off-by: David Woodhouse

mtd: quiet sparse noise in cfi.h

2010-02-25T11:29:25+00:00

In the inline function cfi_build_cmd_addr, the cast of cmd_ofs to an
uint8_t produces a sparse warning of the type:

warning: cast truncates bits from constant value (2aa becomes aa)

Quiet the warning by masking cmd_ofs with 0xff and remove the cast.

Signed-off-by: H Hartley Sweeten 
Signed-off-by: Artem Bityutskiy 
Signed-off-by: David Woodhouse

mtd: move manufacturer to the common cfi.h header file

2009-11-30T09:51:26+00:00

This patch moves the MANUFACTURER_ST and MANUFACTURER_INTEL to the
include/linux/mtd/cfi.h header file and renames them to CFI_MFR_ST and
CFI_MFR_INTEL. CFI_MFR_ST was already present there.

All references in drivers/mtd/chips/cfi_cmdset_0001.c are updated to reflect
this.

Signed-off-by: Hans-Christian Egtvedt 
Acked-by: Nicolas Pitre 
Signed-off-by: Artem Bityutskiy 
Signed-off-by: David Woodhouse

[MTD] CFI: remove major/minor version check for command set 0x0002

2009-01-09T12:16:28+00:00

The NOR Flash memory K8P2815UQB from Samsung uses the major version
number '0'. Add a quirk to cope with it.

Signed-off-by: Wolfgang Grandegger 
Signed-off-by: David Woodhouse

[MTD] [NOR] Fix cfi_send_gen_cmd handling of x16 devices in x8 mode (v4)

2008-11-05T13:40:25+00:00

For "unlock" cycles to 16bit devices in 8bit compatibility mode we need
to use the byte addresses 0xaaa and 0x555. These effectively match
the word address 0x555 and 0x2aa, except the latter has its low bit set.

Most chips don't care about the value of the 'A-1' pin in x8 mode,
but some -- like the ST M29W320D -- do. So we need to be careful to
set it where appropriate.

cfi_send_gen_cmd is only ever passed addresses where the low byte
is 0x00, 0x55 or 0xaa. Of those, only addresses ending 0xaa are
affected by this patch, by masking in the extra low bit when the device
is known to be in compatibility mode.

[dwmw2: Do it only when (cmd_ofs & 0xff) == 0xaa]
v4: Fix  stupid typo in cfi_build_cmd_addr that failed to compile
    I'm writing this patch way to late at night.
v3: Bring all of the work back into cfi_build_cmd_addr
    including calling of map_bankwidth(map) and cfi_interleave(cfi)
    So every caller doesn't need to.
v2: Only modified the address if we our device_type is larger than our
    bus width.

Cc: stable@kernel.org
Signed-off-by: Eric W. Biederman 
Signed-off-by: David Woodhouse

[MTD] [NOR] Rename and export new cfi_qry_*() functions

2008-08-07T10:55:07+00:00

They need to be exported, so let's give them less generic-sounding names
while we're at it.

Original export patch, along with the suggestion about the nomenclature,
from Stephen Rothwell.

Signed-off-by: David Woodhouse

[MTD] [NOR] Add qry_mode_on()/qry_omde_off() to deal with odd chips

2008-08-06T08:43:58+00:00

There are some CFI chips which require non standard procedures to get 
into QRY mode. The possible way to support them would be trying 
different modes till QRY will be read. This patch introduce two new 
functions qry_mode_on qry_mode_off. qry_mode_on tries different commands 
in order switch chip into QRY mode.

So if we have one more "odd" chip - we just could add several lines to 
qry_mode_on. Also using these functions remove unnecessary code 
duplicaton in porbe procedure.

Currently there are two "odd" cases
1. Some old intel chips which require 0xFF before 0x98
2. ST M29DW chip which requires 0x98 to be sent at 0x555 (according to
CFI should be 0x55)

This patch is partialy based on the patch from Uwe
(see "[PATCH 2/4] [RFC][MTD] cfi_probe: remove Intel chip workaround"
thread )

Signed-off-by: Alexey Korolev 
Signed-off-by: Alexander Belyakov 
Signed-off-by: David Woodhouse

MTD/JFFS2: remove CVS keywords

2008-06-04T16:50:17+00:00

Once upon a time, the MTD repository was using CVS.

This patch therefore removes all usages of the no longer updated CVS
keywords from the MTD code.

This also includes code that printed them to the user.

Signed-off-by: Adrian Bunk 
Signed-off-by: David Woodhouse