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

- Various MMC fixes

mmc: Downgrade SD/MMC from UHS/HS200/HS400 modes before boot

Older kernel versions or systems which do not connect eMMC reset line
properly may not be able to handle situations where either the eMMC

mmc: Downgrade SD/MMC from UHS/HS200/HS400 modes before boot

Older kernel versions or systems which do not connect eMMC reset line
properly may not be able to handle situations where either the eMMC
is left in HS200/HS400 mode or SD card in UHS modes by the bootloader
and may misbehave. Downgrade the eMMC to HS/HS52 mode and/or SD card
to non-UHS mode before booting the kernel to allow such older kernels
to work with modern U-Boot.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Tom Rini <trini@konsulko.com>

show more ...

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

- MMC fixes for R-Car Gen3

mmc: Parse HS400 DT properties

Add HS400 properties parsing support to mmc_of_parse().

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Bin Meng <bmeng.cn@gmail.com>
Cc: Jaehoon Chung

mmc: Parse HS400 DT properties

Add HS400 properties parsing support to mmc_of_parse().

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Bin Meng <bmeng.cn@gmail.com>
Cc: Jaehoon Chung <jh80.chung@samsung.com>
Cc: Jean-Jacques Hiblot <jjhiblot@ti.com>
Cc: Kishon Vijay Abraham I <kishon@ti.com>
Cc: Peng Fan <peng.fan@nxp.com>
Cc: Simon Glass <sjg@chromium.org>

show more ...

SPDX: Convert all of our single license tags to Linux Kernel style

When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from. So

SPDX: Convert all of our single license tags to Linux Kernel style

When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from. So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry. Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents. There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>

show more ...

Remove unnecessary instances of DECLARE_GLOBAL_DATA_PTR

We have a large number of places where while we historically referenced
gd in the code we no longer do, as well as cases where the code added

Remove unnecessary instances of DECLARE_GLOBAL_DATA_PTR

We have a large number of places where while we historically referenced
gd in the code we no longer do, as well as cases where the code added
that line "just in case" during development and never dropped it.

Signed-off-by: Tom Rini <trini@konsulko.com>

show more ...

Merge git://git.denx.de/u-boot-mmc

mmc: let mmc_of_parse() fail for insane bus-width value

You must fix your DT if it specifies insane bus-width, for example,
bus-width = <3>;

debug() is not displayed in usual configuration, so pe

mmc: let mmc_of_parse() fail for insane bus-width value

You must fix your DT if it specifies insane bus-width, for example,
bus-width = <3>;

debug() is not displayed in usual configuration, so people will not
even notice weirdness. Use dev_err() instead, then let it fail.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

show more ...

mmc: do not overwrite cfg->f_max if "max-frequency" if missing

mmc_of_parse() in U-Boot is a pussy helper; it sets cfg->f_max to
52MHz even if DT does not provide "max-frequency" at all. This can
o

mmc: do not overwrite cfg->f_max if "max-frequency" if missing

mmc_of_parse() in U-Boot is a pussy helper; it sets cfg->f_max to
52MHz even if DT does not provide "max-frequency" at all. This can
overwrite cfg->f_max that may have been set to a reasonable default.

As the DT binding says, "max-frequency" is an optional property.
Do nothing if DT does not specify it. This is the behavior of
mmc_of_parse() in Linux.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

show more ...

Merge git://git.denx.de/u-boot-mmc

mmc: add a Kconfig option to enable the support for MMC write operations

This allows using CONFIG_IS_ENABLED(MMC_WRITE) to compile out code
needed only if write support is required.
The option is ad

mmc: add a Kconfig option to enable the support for MMC write operations

This allows using CONFIG_IS_ENABLED(MMC_WRITE) to compile out code
needed only if write support is required.
The option is added for u-boot and for SPL

Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>

show more ...

mmc: make UHS and HS200 optional

Supporting USH and HS200 increases the code size as it brings in IO voltage
control, tuning and fatter data structures.
Use Kconfig configuration to select which of

mmc: make UHS and HS200 optional

Supporting USH and HS200 increases the code size as it brings in IO voltage
control, tuning and fatter data structures.
Use Kconfig configuration to select which of those features should be
built in.

Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>

show more ...

dm: mmc: update mmc_of_parse()

* convert to livetree API
* don't fail because of an invalid bus-width, instead default to 1-bit.
* recognize 1.2v DDR and 1.2v HS200 flags

Signed-off-by: Jean-Jacque

dm: mmc: update mmc_of_parse()

* convert to livetree API
* don't fail because of an invalid bus-width, instead default to 1-bit.
* recognize 1.2v DDR and 1.2v HS200 flags

Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>

show more ...

dm: mmc: Add a library function to parse generic dt binding

Add a new function to parse host controller dt node and
set mmc_config. This function can be used by mmc controller
drivers to set the gen

dm: mmc: Add a library function to parse generic dt binding

Add a new function to parse host controller dt node and
set mmc_config. This function can be used by mmc controller
drivers to set the generic mmc_config.
This function can be extended to set other UHS mode caps
once UHS mode support is added.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>

show more ...

mmc: Add support for UHS modes

Add UHS modes to the list of supported modes, get the UHS capabilites of
the SDcard and implement the procedure to switch the voltage (UHS modes
use 1v8 IO lines)
Duri

mmc: Add support for UHS modes

Add UHS modes to the list of supported modes, get the UHS capabilites of
the SDcard and implement the procedure to switch the voltage (UHS modes
use 1v8 IO lines)
During the voltage switch procedure, DAT0 is used by the card to signal
when it's ready. The optional card_busy() callback can be used to get this
information from the host driver.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

show more ...

mmc: Add a execute_tuning() callback to the mmc operations.

Tuning is a mandatory step in the initialization of SDR104 and HS200 modes.
This callback execute the tuning process.

Signed-off-by: Kish

mmc: Add a execute_tuning() callback to the mmc operations.

Tuning is a mandatory step in the initialization of SDR104 and HS200 modes.
This callback execute the tuning process.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>

show more ...

mmc: Add a new callback function to perform the 74 clocks cycle sequence

Add a new callback function *send_init_stream* which start a sequence of
at least 74 clock cycles.
The mmc core uses *mmc_sen

mmc: Add a new callback function to perform the 74 clocks cycle sequence

Add a new callback function *send_init_stream* which start a sequence of
at least 74 clock cycles.
The mmc core uses *mmc_send_init_stream* in order to invoke the callback
function. This will be used during power cycle where the specification
requires such a sequence after power up.

Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>

show more ...

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

dm: mmc: Drop CONFIG_DM_MMC_OPS

All boards which use DM_MMC have now been converted to use DM_MMC_OPS.
Drop the option and good riddance.

Signed-off-by: Simon Glass <sjg@chromium.org>

Merge git://git.denx.de/u-boot-mmc

dm: mmc: Allow disabling driver model in SPL

At present if U-Boot proper uses driver model for MMC, then SPL has to
also. While this is desirable, it places a significant barrier to moving
to driver

dm: mmc: Allow disabling driver model in SPL

At present if U-Boot proper uses driver model for MMC, then SPL has to
also. While this is desirable, it places a significant barrier to moving
to driver model in some cases. For example, with a space-constrained SPL
it may be necessary to enable CONFIG_SPL_OF_PLATDATA which involves
adjusting some drivers.

Add new SPL versions of the options for DM_MMC, DM_MMC_OPS and BLK. By
default these follow their non-SPL versions, but this can be changed by
boards which need it.

Signed-off-by: Simon Glass <sjg@chromium.org>

show more ...

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

dm: mmc: Avoid probing block devices in find_mmc_device()

We do not need to probe the block device here, so avoid doing so. The MMC
device itself must be active, but the block device can come later.

dm: mmc: Avoid probing block devices in find_mmc_device()

We do not need to probe the block device here, so avoid doing so. The MMC
device itself must be active, but the block device can come later.

Signed-off-by: Simon Glass <sjg@chromium.org>

show more ...

dm: mmc: Convert uclass to livetree

Update the mmc uclass to support a live device tree.

Signed-off-by: Simon Glass <sjg@chromium.org>

dm: mmc: Rewrite mmc_blk_probe()

This function is called when the MMC block device is being probed. There
is a recursive call in this function since find_mmc_device() itself can
cause the MMC device

dm: mmc: Rewrite mmc_blk_probe()

This function is called when the MMC block device is being probed. There
is a recursive call in this function since find_mmc_device() itself can
cause the MMC device to be probed.

Admittedly the MMC device should already be probed, since we would not be
probing its child otherwise, but the current code is unnecessarily
convoluted.

Rewrite this to access the MMC structure directly.

Signed-off-by: Simon Glass <sjg@chromium.org>

show more ...