linux-toradex.git/include/linux/mmc, branch v2.6.19.2 Linux kernel for Apalis and Colibri modules [PATCH] mmc: multi sector write transfers 2006-10-06T15:53:41+00:00 Pierre Ossman drzeus@drzeus.cx 2006-10-06T07:44:03+00:00 ec5a19dd935eb3793e1f6ed491e8035b3d7b1df9 SD cards extend the protocol by allowing the host to query a card how many blocks were successfully stored on the medium. This allows us to safely write chunks of blocks at once. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org> 
SD cards extend the protocol by allowing the host to query a card how many
blocks were successfully stored on the medium.  This allows us to safely write
chunks of blocks at once.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
[MMC] MMC_CAP_BYTEBLOCK flag for non-log2 block sizes capable hosts 2006-09-24T09:44:09+00:00 Russell King rmk@dyn-67.arm.linux.org.uk 2006-09-24T09:44:09+00:00 42431acbac43eb47c774c29d370f5c59136805bf Some MMC hosts can only handle log2 block sizes. Unfortunately, the MMC password support needs to be able to send non-log2 block sizes. Provide a capability so that the MMC password support can decide whether it should use this support or not. The unfortunate side effect of this host limitation is that any MMC card protected by a password which is not a log2 block size can not be accessed on a host which only allows a log2 block size. This change just adds the flag. The MMC password support code needs updating to use it (if and when it is finally submitted.) Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> 
Some MMC hosts can only handle log2 block sizes.  Unfortunately,
the MMC password support needs to be able to send non-log2 block
sizes.  Provide a capability so that the MMC password support can
decide whether it should use this support or not.

The unfortunate side effect of this host limitation is that any
MMC card protected by a password which is not a log2 block size
can not be accessed on a host which only allows a log2 block size.

This change just adds the flag.  The MMC password support code
needs updating to use it (if and when it is finally submitted.)

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
[MMC] Add multi block-write capability 2006-09-16T10:57:49+00:00 Russell King rmk@dyn-67.arm.linux.org.uk 2006-08-30T14:14:56+00:00 db53f28b3a6d9338cca1b7e917dc063ac99e1871 Add a capability flag for drivers to set when they can perform multi- block transfers to cards _and_ correctly report the number of bytes transferred should an error occur. The last point is very important - if a driver reports more bytes than were actually accepted by the card and an error occurs, there is the possibility for data loss. Pierre Ossman provided the patch for wbsd and sdhci. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> 
Add a capability flag for drivers to set when they can perform multi-
block transfers to cards _and_ correctly report the number of bytes
transferred should an error occur.

The last point is very important - if a driver reports more bytes than
were actually accepted by the card and an error occurs, there is the
possibility for data loss.

Pierre Ossman provided the patch for wbsd and sdhci.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
[MMC] Remove data->blksz_bits member 2006-09-16T10:54:04+00:00 Russell King rmk@dyn-67.arm.linux.org.uk 2006-08-27T12:56:52+00:00 132919ba80ad207755fe271277bfefff865a54fe data->blksz_bits is unused now - remove it. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> 
data->blksz_bits is unused now - remove it.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
[MMC] Cleanup 385e3227d4d83ab13d7767c4bb3593b0256bf246 2006-09-07T14:57:12+00:00 Russell King rmk@dyn-67.arm.linux.org.uk 2006-09-07T14:57:12+00:00 d773d7255199a6c8934e197756f54a1115dd127b Rather than having two places which independently calculate the timeout for data transfers, make it a library function instead. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Acked-by: Pierre Ossman <drzeus@drzeus.cx> 
Rather than having two places which independently calculate the
timeout for data transfers, make it a library function instead.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Pierre Ossman <drzeus@drzeus.cx>
[MMC] constify mmc_host_ops 2006-09-07T12:18:40+00:00 David Brownell david-b@pacbell.net 2006-09-03T13:43:33+00:00 f57b225e432d80ee46f48536cc55ea6cf62c5570 Let drivers constify MMC host method operations tables, moving them from ".data" to ".rodata". Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Acked-by: Pierre Ossman <drzeus@drzeus.cx> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> 
Let drivers constify MMC host method operations tables,
moving them from ".data" to ".rodata".

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Acked-by: Pierre Ossman <drzeus@drzeus.cx>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
[ARM] 3531/1: i.MX/MX1 SD/MMC ensure, that clock are stopped before new command and cleanups 2006-05-19T20:48:03+00:00 Pavel Pisa ppisa@pikron.com 2006-05-19T20:48:03+00:00 2c171bf13423dc5293188cea7f6c2da1720926e2 Patch from Pavel Pisa There has been problems that for some paths that clock are not stopped during new command programming and initiation. Result is issuing of incorrect command to the card. Some other problems are cleaned too. Noisy report of known ERRATUM #4 has been suppressed. Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> 
Patch from Pavel Pisa

There has been problems that for some paths that clock are not stopped
during new command programming and initiation. Result is issuing
of incorrect command to the card. Some other problems are cleaned too.
Noisy report of known ERRATUM #4 has been suppressed.

Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
[MMC] extend data timeout for writes 2006-05-02T16:24:59+00:00 Russell King rmk@dyn-67.arm.linux.org.uk 2006-05-02T16:24:59+00:00 37be4e7809e0581db85387e126ae4da68c3d6286 The CSD contains a "read2write factor" which determines the multiplier to be applied to the read timeout to obtain the write timeout. We were ignoring this parameter, resulting in the possibility for writes being timed out too early. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> 
The CSD contains a "read2write factor" which determines the multiplier to
be applied to the read timeout to obtain the write timeout.  We were
ignoring this parameter, resulting in the possibility for writes being
timed out too early.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
[MMC] Fix mmc_cmd_type() mask 2006-02-22T09:32:46+00:00 Russell King rmk@dyn-67.arm.linux.org.uk 2006-02-17T20:23:29+00:00 5bd546aa78b5d74f3162815e41940f862215d9e3 It's MMC_CMD_MASK not MMC_CMD_TYPE. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> 
It's MMC_CMD_MASK not MMC_CMD_TYPE.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
[MMC] Add MMC command type flags 2006-02-02T12:23:12+00:00 Russell King rmk@dyn-67.arm.linux.org.uk 2006-02-02T12:23:12+00:00 e92251762d02a46177d4105d1744041e3f8bc465 Some hosts need to know the command type, so pass it via a set of flags in cmd->flags. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> 
Some hosts need to know the command type, so pass it via a set of
flags in cmd->flags.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>