u-boot.git/drivers/mmc, branch v2017.11

mmc: fsl_esdhc: Fix PIO timeout

2017-11-07T09:26:27+00:00

The following error has been observed on i.MX25 with a high-speed SDSC
card:
    Data Write Failed in PIO Mode.

It was caused by the timeout set on PRSSTAT.BWEN, which was triggered
because this bit takes 15 ms to be set after writing the first block to
DATPORT with this card. Without this timeout, all the blocks are
properly written.

This timeout was implemented by decrementing a variable, so it was
depending on the CPU frequency. Fix this issue by setting this timeout
to a long enough absolute duration (500 ms).

Signed-off-by: Benoît Thébaudeau 
Cc: Stefano Babic 
Cc: Fabio Estevam 
Cc: Jaehoon Chung 
Reviewed-by: Fabio Estevam 
Reviewed-by: Jagan Teki

stm32: fix STMicroelectronics copyright

2017-11-06T14:51:01+00:00

Uniformize STMicroelectronics copyrights headers for STM32
related code.

Signed-off-by: Patrice Chotard

sti: fix STMicroelectronics copyright

2017-11-06T14:51:01+00:00

Uniformize all STMicroelectronics copyrights headers for STi
related code.

Signed-off-by: Patrice Chotard

mmc: stm32_sdmmc2: increase polling status register delay

2017-10-16T13:42:51+00:00

MMC commands like MMC_CMD_ALL_SEND_CID or MMC_CMD_SEND_CSD can reach
500 us. This patch increases the polling status register delay to avoid
a timeout on a command.

Signed-off-by: Christophe Kerello 
Signed-off-by: Patrice Chotard

dm: mmc: remove DM_MMC_OPS for STM32_SDMMC

2017-10-08T20:19:56+00:00

Since e7881d85 "dm: mmc: Drop CONFIG_DM_MMC_OPS" DM_MMC_OPS
is no more used, remove it from STM32_SDMMC2 dependencies

Signed-off-by: Patrice Chotard

treewide: replace with error() with pr_err()

2017-10-04T15:59:44+00:00

U-Boot widely uses error() as a bit noisier variant of printf().

This macro causes name conflict with the following line in
include/linux/compiler-gcc.h:

  # define __compiletime_error(message) __attribute__((error(message)))

This prevents us from using __compiletime_error(), and makes it
difficult to fully sync BUILD_BUG macros with Linux.  (Notice
Linux's BUILD_BUG_ON_MSG is implemented by using compiletime_assert().)

Let's convert error() into now treewide-available pr_err().

Done with the help of Coccinelle, excluing tools/ directory.

The semantic patch I used is as follows:

// 
@@@@
-error
+pr_err
 (...)
// 

Signed-off-by: Masahiro Yamada 
Reviewed-by: Simon Glass 
[trini: Re-run Coccinelle]
Signed-off-by: Tom Rini

mmc: sdhci-cadence: set timing mode register depending on frequency

2017-09-29T02:34:22+00:00

The MMC framework in U-Boot does not support a systematic API for
timing switch like mmc_set_timing() in Linux.

U-Boot just provides a hook to change the clock frequency via
mmc_set_clock().  It is up to drivers if additional register
settings are needed.

This driver needs to set a correct timing mode into a register when
it migrates to a different speed mode.  Only increasing clock frequency
could result in setup/hold timing violation.

The timing mode should be decided by checking MMC_TIMING_* like
drivers/mmc/host/sdhci-cadence.c in Linux, but "timing" is not
supported by U-Boot for now.  Just use mmc->clock to decide the
timing mode.

Signed-off-by: Masahiro Yamada

mmc: uniphier-sd: Add vqmmc regulator support

2017-09-29T02:17:29+00:00

Add initial support for setting the vqmmc regulator. Since we do not
support 1V8 modes, set the regulator to 3V3 and enable it.

Signed-off-by: Marek Vasut 
Cc: Masahiro Yamada 
Cc: Jaehoon Chung 
Acked-by: Masahiro Yamada

mmc: uniphier-sd: Update the file to match V3 patchset

2017-09-29T02:14:14+00:00

Old version of the uniphier-sd 64bit IO support patchset V1 was
applied by the maintainer, update the uniphier-sd.c with the
changes from the V3 of the patchset.

Signed-off-by: Marek Vasut 
Cc: Masahiro Yamada 
Cc: Jaehoon Chung 
Acked-by: Masahiro Yamada

mmc: Add MMC support for stm32h7 Socs

2017-09-28T11:23:19+00:00

This patch adds SD/MMC support for STM32H7 SoCs.

Here is an extraction of SDMMC main features, embedded in
STM32H7 SoCs.
The SD/MMC block include the following:
 _ Full compliance with MultiMediaCard System Specification
   Version 4.51. Card support for three different databus modes:
   1-bit (default), 4-bit and 8-bit.
 _ Full compatibility with previous versions of MultiMediaCards
   (backward compatibility).
 _ Full compliance with SD memory card specifications version 4.1.
   (SDR104 SDMMC_CK speed limited to maximum allowed IO speed,
    SPI mode and UHS-II mode not supported).
 _ Full compliance with SDIO card specification version 4.0.
   Card support for two different databus modes: 1-bit (default)
   and 4-bit. (SDR104 SDMMC_CK speed limited to maximum allowed IO
   speed, SPI mode and UHS-II mode not supported).
 _ Data transfer up to 208 Mbyte/s for the 8 bit mode.
   (depending maximum allowed IO speed).
 _ Data and command output enable signals to control external
   bidirectional drivers.

The current version of the SDMMC supports only one SD/SDIO/MMC card
at any one time and a stack of MMC Version 4.51 or previous.

Signed-off-by: Christophe Kerello 
Signed-off-by: Patrice Chotard 
Reviewed-by: Simon Glass