mmc: seperate block number into small parts for multi-write cmd

Constraint the mmc framework to only send no more than 65535
blocks in one go during the multi-write command. This constraint
comes du

mmc: seperate block number into small parts for multi-write cmd

Constraint the mmc framework to only send no more than 65535
blocks in one go during the multi-write command. This constraint
comes due to the limitation of 16bit width block counter register
at some hardware.

Signed-off-by: Lei Wen <leiwen@marvell.com>
Cc: Reinhard Meyer <u-boot@emk-elektronik.de>

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Merge branch 'master' of git://git.denx.de/u-boot-arm

MMC: Fix for capacity calculation on eMMC

The current mmc driver returns erroneous capacity information for
eMMC. The capacity of eMMC devices is available only in the ext-CSD
register. This

MMC: Fix for capacity calculation on eMMC

The current mmc driver returns erroneous capacity information for
eMMC. The capacity of eMMC devices is available only in the ext-CSD
register. This patch add code to read the ext-CDSD register and
correctly calculate eMMC capacity.

Signed-off-by: Sukumar Ghorai <s-ghorai@ti.com>
Acked-by: Steve Sakoman <steve@sakoman.com>

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Merge branch 'master' of /home/wd/git/u-boot/master

mmc: fix compiler warnings

Commit d2bf29e3 caused a number of compiler warnings:

mmc.c: In function 'mmc_bwrite':
mmc.c:97: warning: format '%x' expects type 'unsigned int', but argument 2 has type

mmc: fix compiler warnings

Commit d2bf29e3 caused a number of compiler warnings:

mmc.c: In function 'mmc_bwrite':
mmc.c:97: warning: format '%x' expects type 'unsigned int', but argument 2 has type 'long unsigned int'
mmc.c:97: warning: format '%x' expects type 'unsigned int', but argument 3 has type 'lbaint_t'
mmc.c: In function 'mmc_bread':
mmc.c:229: warning: format '%x' expects type 'unsigned int', but argument 2 has type 'long unsigned int'
mmc.c:229: warning: format '%x' expects type 'unsigned int', but argument 3 has type 'lbaint_t'

Fix these.

Signed-off-by: Wolfgang Denk <wd@denx.de>
Cc: Lei Wen <leiwen@marvell.com>

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mmc: add boundary check for mmc operation

Signed-off-by: Lei Wen <leiwen@marvell.com>

Merge branch 'master' of git://git.denx.de/u-boot-arm

Conflicts:

cpu/arm920t/ep93xx/timer.c

Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>

Merge branch 'master' of git://git.denx.de/u-boot-arm

Conflicts:

board/davinci/da830evm/da830evm.c
board/edb93xx/sdram_cfg.c
board/esd/otc570/otc570.c
board/netstar/eeprom.c
board/netstar/eepr

Merge branch 'master' of git://git.denx.de/u-boot-arm

Conflicts:

board/davinci/da830evm/da830evm.c
board/edb93xx/sdram_cfg.c
board/esd/otc570/otc570.c
board/netstar/eeprom.c
board/netstar/eeprom_start.S
cpu/arm920t/ep93xx/timer.c
include/configs/netstar.h
include/configs/otc570.h

Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>

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Fix memory leak in mmc_read()

There is be a path through mmc_read in drivers/mmc/mmc.c where
malloc'd memory is not freed before exiting mmc_read: it occurs if
mmc_set_blocklen() returns a non-zero

Fix memory leak in mmc_read()

There is be a path through mmc_read in drivers/mmc/mmc.c where
malloc'd memory is not freed before exiting mmc_read: it occurs if
mmc_set_blocklen() returns a non-zero value.

Reported-by: Quentin Armitage <Quentin@Armitage.org.uk>
Signed-off-by: Wolfgang Denk <wd@denx.de>

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MMC: add weak function to detect MMC/SD card

Most controllers can check if there is a card in the slot.
However, they require pins that could be not available because
required by other functions and

MMC: add weak function to detect MMC/SD card

Most controllers can check if there is a card in the slot.
However, they require pins that could be not available because
required by other functions and the detection of a card must
be performed in another way. This patch adds a weak function
that a board can implement to add its internal custom way
to check the presence of a MMC/SD card.

Signed-off-by: Stefano Babic <sbabic@denx.de>

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mmc: check correctness of the voltage mask in ocr

Most cards do not answer if some reserved bits
in the ocr are set. However, some controllers
can set bit 7 (reserved for low voltages), but
how to m

mmc: check correctness of the voltage mask in ocr

Most cards do not answer if some reserved bits
in the ocr are set. However, some controllers
can set bit 7 (reserved for low voltages), but
how to manage low voltages SD card is not yet
specified.

Signed-off-by: Stefano Babic <sbabic@denx.de>

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mmc: set bus width to 1 and clock to minimum early during initialization

We need to switch back to 1-bit before initialization or SD 2.0 cards
will fail to send SCR if we've switched to 4-bit alread

mmc: set bus width to 1 and clock to minimum early during initialization

We need to switch back to 1-bit before initialization or SD 2.0 cards
will fail to send SCR if we've switched to 4-bit already.

Signed-off-by: Ilya Yanok <yanok@emcraft.com>

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Merge branch 'master' of git://git.denx.de/u-boot-mmc

mmc: it's safe to ignore mmc_send_if_cond() return value

Return value of mmc_send_if_cond() can be safely ignored (as it is
done in Linux). This makes older cards work with MXC MCI controller.

Sign

mmc: it's safe to ignore mmc_send_if_cond() return value

Return value of mmc_send_if_cond() can be safely ignored (as it is
done in Linux). This makes older cards work with MXC MCI controller.

Signed-off-by: Ilya Yanok <yanok@emcraft.com>

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mmc: Fix decoding of SCR & function switch data on little-endian machines

SCR & switch data are read from card as big-endian words and should be
converted to CPU byte order.

Signed-off-by: Yauhen K

mmc: Fix decoding of SCR & function switch data on little-endian machines

SCR & switch data are read from card as big-endian words and should be
converted to CPU byte order.

Signed-off-by: Yauhen Kharuzhy <jekhor@gmail.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>

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mmc: Remove return from mmc_init for non SD 2.0 compatible cards.

Cards which are not compatible with SD 2.0 standard, may return response
for CMD8 command, but it will be invalid in terms of SD 2.0

mmc: Remove return from mmc_init for non SD 2.0 compatible cards.

Cards which are not compatible with SD 2.0 standard, may return response
for CMD8 command, but it will be invalid in terms of SD 2.0. We should
accept this case as admissible, just like Linux does.

Signed-off-by: Yauhen Kharuzhy <jekhor@gmail.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>

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mmc: drop unnecessary casts

Now that response is a uint, we can drop all the casts.

Signed-off-by: Rabin Vincent <rabin@rab.in>

mmc: fix response decoding on little endian

The mmc code defines the response as an array of chars. However, it
access the response bytes both as (i) an array of four uints (with
casts) and (ii) as

mmc: fix response decoding on little endian

The mmc code defines the response as an array of chars. However, it
access the response bytes both as (i) an array of four uints (with
casts) and (ii) as individual chars. The former case is used more
often, including by the driver when it assigns the response.

The char-wise accesses are broken on little endian systems because they
assume that the bytes in the uints are in big endian byte order.

This patch fixes this by changing the response to be an array of four
uints and replacing the char-wise accesses with equivalent uint-wise
accesses.

Signed-off-by: Rabin Vincent <rabin@rab.in>

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mmc: use lldiv to fix arm eabi build

The generic MMC core uses direct long long divisions, which do not build
with ARM EABI toolchains. Use lldiv() instead, which works everywhere.

Signed-off-by:

mmc: use lldiv to fix arm eabi build

The generic MMC core uses direct long long divisions, which do not build
with ARM EABI toolchains. Use lldiv() instead, which works everywhere.

Signed-off-by: Rabin Vincent <rabin@rab.in>

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mmc: check find_mmc_device return value

find_mmc_device returns NULL if an invalid device number is specified.
Check for this to avoid dereferencing NULL pointers.

Signed-off-by: Rabin Vincent <rab

mmc: check find_mmc_device return value

find_mmc_device returns NULL if an invalid device number is specified.
Check for this to avoid dereferencing NULL pointers.

Signed-off-by: Rabin Vincent <rabin@rab.in>

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Replace __attribute references with __attribute__

__attribute__ follows gcc's documented syntax and is generally more
common than __attribute. This change is only asthetic and should not
affect fun

Replace __attribute references with __attribute__

__attribute__ follows gcc's documented syntax and is generally more
common than __attribute. This change is only asthetic and should not
affect functionality.

Signed-off-by: Peter Tyser <ptyser@xes-inc.com>

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Add MMC Framework

Here's a new framework (based roughly off the linux one) for managing
MMC controllers. It handles all of the standard SD/MMC transactions,
leaving the host drivers to implement on

Add MMC Framework

Here's a new framework (based roughly off the linux one) for managing
MMC controllers. It handles all of the standard SD/MMC transactions,
leaving the host drivers to implement only what is necessary to
deal with their specific hardware.

This also hooks the infrastructure into the PowerPC board code
(similar to how the ethernet infrastructure now hooks in)

Some of this code was contributed by Dave Liu <daveliu@freescale.com>

Signed-off-by: Andy Fleming <afleming@freescale.com>

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