u-boot.git/include/mmc.h, branch v2011.06

mmc: enable partition switch function for emmc

2011-05-18T19:37:03+00:00

For emmc, it may have up to 7 partitions: two boot partitions, one
user partition, one RPMB partition and four general purpose partitions.
(Refer to JESD84-A44.pdf/page 154)

As bootloader may need to read out or reflashing images on those

different partitions, it is better to enable the partition switch with
console command support.

Also for partition would be restore to user partition(part 0) when CMD0
is used, so change mmc_init routine to perform normal initialization
only once for each slot, unless use the rescan command to force init
again.

Signed-off-by: Lei Wen 
Acked-by: Andy Fleming

cmd_mmc: eliminate device num in the mmc command

2011-05-18T19:36:35+00:00

mmc command applied device, like ide and usb...

Signed-off-by: Lei Wen 
Acked-by: Andy Fleming

mmc_spi: generate response for send status command

2011-05-18T19:30:34+00:00

A "send status" command is added with the commit "mmc: checking
status after commands with R1b response". But the status register
returned from send status command of SPI protocol is different from
that of MMC/SD protocol. We do a simple test and generate a response
in stead of full bit-by-bit translation.

Signed-off-by: Thomas Chou

mmc: coding style fix and tabify of mmc.h

2011-04-29T08:22:17+00:00

Signed-off-by: Thomas Chou

MMC: make b_max unconditional

2011-04-29T08:21:54+00:00

Make existing field b_max field in struct mmc unconditional
and use it instead of CONFIG_SYS_MMC_MAX_BLK_COUNT in mmc_bread
and mmc_bwrite.

Initialize b_max to CONFIG_SYS_MMC_MAX_BLK_COUNT in mmc_register
if it has not been initialized by the hw driver.

Initialize b_max to 0 in all callers to mmc_register.

Signed-off-by: John Rigby 
Signed-off-by: Andy Fleming

mmc: SEND_OP_COND considers card capabilities (voltage)

2011-04-13T12:09:04+00:00

The first SEND_OP_COND (CMD1) command added is used to ask card capabilities.
After it an AND operation is done between card capabilities and host
capabilities (at the moment only for the voltage field).
Finally the correct value is sent to the MMC, waiting that the card
exits from busy state.

Signed-off-by: Raffaele Recalcati 
Signed-off-by: Andy Fleming

mmc: checking status after commands with R1b response

2011-04-13T12:08:57+00:00

It is recommended to check card status after these kind of commands.
This is done using CMD13 (SEND_STATUS) JEDEC command until
the card is ready.
In case of error the card status field is displayed.

Signed-off-by: Raffaele Recalcati 
Signed-off-by: Andy Fleming

mmc: add generic mmc spi driver

2011-04-13T11:35:22+00:00

This patch supports mmc/sd card with spi interface. It is based on
the generic mmc framework. It works with SDHC and supports multi
blocks read/write.

The crc checksum on data packet is enabled with the def,

There is a subcomamnd "mmc_spi" to setup spi bus and cs at run time.

Signed-off-by: Thomas Chou 
Signed-off-by: Andy Fleming

Davinci MMCSD Support

2011-02-01T23:54:44+00:00

Added support for MMC/SD cards for Davinci.  This feature is enabled by
CONFIG_DAVINCI_MMC and is dependant on CONFIG_MMC and CONFIG_GENERIC_MMC
options. This is tested on DM355 and DM365 EVMs with both the available mmc
controllers.

Signed-off-by: Alagu Sankar 
Signed-off-by: Sandeep Paulraj

fsl_esdhc: Use mmc_set_clock to set initial speed

2010-12-18T22:15:21+00:00

After booting the u-boot, and first using some SD card (such as Sandisk 2G SD
card), because the field 'clock' of struct mmc is zero, this will cause
the read transfer is always active and SDHC DATA line is always active,
therefore, driver can't handle the next command.

Therefore, we use mmc_set_clock to setup both the data structure and HW
to the initial clock speed of 400000Hz.

Signed-off-by: Jerry Huang 
Tested-by: Stefano Babic 
Signed-off-by: Kumar Gala