This converts the following to Kconfig:
   CONFIG_APBH_DMA
   CONFIG_APBH_DMA_BURST
   CONFIG_APBH_DMA_BURST8
Signed-off-by: NAdam Ford <aford173@gmail.com>
Reviewed-by: NStefan Agner <stefan.agner@toradex.com>
[trini: Add in MMC as well]
Signed-off-by: NTom Rini <trini@konsulko.com>

Introduce SDR104 and HS200 support
The implementation takes linux kernel sdhci.c and sdhci-esdhc-imx.c
as reference.
 - Implement esdhc_change_pinstate to dynamically change pad settings
 - Implement esdhc_set_timing
 - Implement esdhc_set_voltage to switch voltage
 - Implement fsl_esdhc_execute_tuning to execute time process
 - Enlarge the cfg->f_max to 200MHz.
 - Parse fsl,tuning-step, fsl,tuning-start-tap and
   fsl,strobe-dll-delay-target from device tree.
 - Parse no-1-8-v property
 - Introduce esdhc_soc_data to indicate the flags and caps
Signed-off-by: NPeng Fan <peng.fan@nxp.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Cc: Jaehoon Chung <jh80.chung@samsung.com>
Reviewed-by: NJaehoon Chung <jh80.chung@samsung.com>

Add entries that will be used for tuning control.
The whole layout not changed, just expand reserved3[84] and
rename other reservedx in sequence.
Signed-off-by: NPeng Fan <peng.fan@nxp.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Cc: Jaehoon Chung <jh80.chung@samsung.com>
Reviewed-by: NJaehoon Chung <jh80.chung@samsung.com>

Support i.MX8M in fsl esdhc driver.
Signed-off-by: NPeng Fan <peng.fan@nxp.com>
Reviewed-by: NStefano Babic <sbabic@denx.de>
Reviewed-by: NFabio Estevam <fabio.estevam@nxp.com>

The BCM2835 family of SoCs has 2 different SD controllers: One based on
the SDHCI spec and a custom, home-grown one.

This patch implements a driver for the latter based on the Linux driver.
This is needed so that we can make use of device trees that assume driver
presence of both SD controllers.
Signed-off-by: NAlexander Graf <agraf@suse.de>

Poll for broken card detection case instead of return
no card detected.
Signed-off-by: NJun Nie <jun.nie@linaro.org>

When clock is enabling, it's assigned to 0 as mmc->clock.
Then it can't initialize any card.
Fix to assign to correct clock value as mmc->cfg->f_min or f_max.

Fixes: 9546eb92 ("mmc: fix the wrong disabling clock")
Signed-off-by: NJaehoon Chung <jh80.chung@samsung.com>
Tested-by: NGuillaume GARDET <guillaume.gardet@free.fr>
Tested-by: NAnand Moon <linux.amoon@gmail.com>
Tested-by: NStephen Warren <swarren@nvidia.com>

wait_for_bit callers use the 32 bit LE version
Signed-off-by: NÁlvaro Fernández Rojas <noltari@gmail.com>
Reviewed-by: NDaniel Schwierzeck <daniel.schwierzeck@gmail.com>
Reviewed-by: NJagan Teki <jagan@openedev.com>

Commit 4f425280 ("mmc: fsl_esdhc: Allow all supported prescaler
values") made it possible to set SYSCTL.SDCLKFS to 0 in SDR mode on
i.MX, thus bypassing the SD clock frequency prescaler, in order to be
able to get higher SD clock frequencies in some contexts. However, that
commit missed the fact that this value is illegal on the eSDHCv3
instance of the i.MX53. This seems to be the only exception on i.MX,
this value being legal even for the eSDHCv2 instances of the i.MX53.

Fix this issue by changing the minimum prescaler value for the single
instance of the i.MX53 eSDHCv3 controller.
Signed-off-by: NBenoît Thébaudeau <benoit.thebaudeau.dev@gmail.com>
Reviewed-by: NFabio Estevam <fabio.estevam@nxp.com>

When power is off, clock is not disabling.
Because it's passed to 1, mmc->clock should be set to f_min value.
Some drivers can't initialize the eMMC/SD card with current status.

This patch is to fix the disabling clock value to 0.

Fixes: 2e7410d7 ("mmc: disable the mmc clock during power off")
Signed-off-by: NJaehoon Chung <jh80.chung@samsung.com>
Reviewed-by: NJean-Jacques Hiblot <jjhiblot@ti.com>
Tested-by: NGuillaume GARDET <guillaume.gardet@free.fr>
Tested-by: NAnand Moon <linux.amoon@gmail.com>

During the tuning, drivers repeat data transfer, changing timing
parameters in the controller hardware.  So, the tuning commands
(CMD19 for SD, CMD21 for eMMC) fail, and this is not a problem
at all.

Showing "Error detected..." in normal operation just make users
upset.  This should not be shown.
Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>

Add HS200 timing setting and the MMC tuning callback.
Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: NJaehoon Chung <jh80.chung@samsung.com>

This is needed to parse more capabilities such as mmc-hs200-1_8v.
Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>

This driver is a counterpart from the one in Linux.  Follow the
clean-up I did in Linux.
Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>

This line overwrites host_cap that has been set by drivers and/or
helpers like mmc_of_parse().  Accumulate capabilities flags.
Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>

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: NMasahiro Yamada <yamada.masahiro@socionext.com>

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: NMasahiro Yamada <yamada.masahiro@socionext.com>

omap_hsmmc driver uses "|" in a couple of places for disabling a bit.
While it's okay to use it in "mmc_reg_out" (since mmc_reg_out has a
_mask_ argument to take care of resetting a bit), it's incorrectly used
for resetting flags in "omap_hsmmc_send_cmd".

Fix it here by using "&= ~()" to reset a bit.
Signed-off-by: NKishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: NJean-Jacques Hiblot <jjhiblot@ti.com>
Reviewed-by: NTom Rini <trini@konsulko.com>

Instead of sending STOP TRANSMISSION command from MMC core, enable
the auto command feature so that the Host Controller issues CMD12
automatically when last block transfer is completed.
Signed-off-by: NKishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: NJean-Jacques Hiblot <jjhiblot@ti.com>
Reviewed-by: NTom Rini <trini@konsulko.com>

The omap hsmmc host controller can have the ADMA2 feature. It brings better
read and write throughput.
On most SOC, the capability is read from the hl_hwinfo register. On OMAP3,
DMA support is compiled out.
Signed-off-by: NKishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: NJean-Jacques Hiblot <jjhiblot@ti.com>
Reviewed-by: NTom Rini <trini@konsulko.com>

This reverts commit 46831c1a.
This reserved area at the beginning of struct hsmm, will be used later to
support ADMA
Signed-off-by: NJean-Jacques Hiblot <jjhiblot@ti.com>
Reviewed-by: NTom Rini <trini@konsulko.com>

Current USDHC driver will reset VSELECT to 0 (3.3v) during mmc init,
then set to 1 for 1.8v eMMC I/O. When booting from eMMC, since ROM has
already set VSELECT to 1.8v before running the u-boot. This reset in
USDHC driver causes a short 2.2v pulse on CMD pin.

Fix this issue by not reset VSELECT to 0 when 1.8v flag is set.
Signed-off-by: NYe Li <ye.li@nxp.com>
Signed-off-by: NPeng Fan <peng.fan@nxp.com>

hc_wp_grp_size is needed only if hardware partitionning is used.
On ARM removing it saves about 30 bytes of code space.
Signed-off-by: NJean-Jacques Hiblot <jjhiblot@ti.com>

This information is only used by the "mmc info" command.
On ARM removing this information from SPL saves about 140 of code space.
Signed-off-by: NJean-Jacques Hiblot <jjhiblot@ti.com>

Also remove erase_grp_size and write_bl_len from struct mmc as they are
not used anymore. On ARM, removing them saves about 100 bytes of code
space in SPL.
Signed-off-by: NJean-Jacques Hiblot <jjhiblot@ti.com>

The content of ssr is useful only for erase operations.
on ARM, removing sd_read_ssr() saves around 300 bytes.
Signed-off-by: NJean-Jacques Hiblot <jjhiblot@ti.com>

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: NJean-Jacques Hiblot <jjhiblot@ti.com>

Using a table versus a switch() structure saves a bit of space
Signed-off-by: NJean-Jacques Hiblot <jjhiblot@ti.com>

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

struct mmc_data contains the block size to use for the data transfer.
Use this information instead of using the default value or the block length
information stored in struct mmc.
Signed-off-by: NJean-Jacques Hiblot <jjhiblot@ti.com>

The SDcard initialization procedure does a few more things than it did earlier:
* switch the bus width even for 1-bit bus width
* check that speed has been properly set (in resp[4] of SD_CMD_SWITCH_FUNC)

Update the SD simulator to handle those requests gracefully.
Signed-off-by: NJean-Jacques Hiblot <jjhiblot@ti.com>
Reviewed-by: NJaehoon Chung <jh80.chung@samsung.com>

Not all boards have an eMMC and not all users have a need for this.
Allow to compile it out. By default it is still included.
Signed-off-by: NJean-Jacques Hiblot <jjhiblot@ti.com>

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: NJean-Jacques Hiblot <jjhiblot@ti.com>

This allows to compile out the log message by tweaking the LOGLEVEL.
Signed-off-by: NJean-Jacques Hiblot <jjhiblot@ti.com>
Reviewed-by: NTom Rini <trini@konsulko.com>

Not using this function reduces the size of the binary. It's replaces by
a standard malloc() and the alignment requirement is handled by an
intermediate buffer on the stack.

Also make sure that the allocated buffer is freed in case of error.
Signed-off-by: NJean-Jacques Hiblot <jjhiblot@ti.com>

The ext_csd is allocated only for MMC above version 4. The compare will
crash or fail for older MMCs.
Signed-off-by: NJean-Jacques Hiblot <jjhiblot@ti.com>

Make sure that those basic capabilities are advertised by the host.
Signed-off-by: NJean-Jacques Hiblot <jjhiblot@ti.com>
Reviewed-by: NLukasz Majewski <lukma@denx.de>
Reviewed-by: NSimon Glass <sjg@chromium.org>

As the legacy modes were not added to the list of supported modes, old
cards that do not support other modes could not be used.
Signed-off-by: NJean-Jacques Hiblot <jjhiblot@ti.com>
Reviewed-by: NLukasz Majewski <lukma@denx.de>
Reviewed-by: NSimon Glass <sjg@chromium.org>

* 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: NJean-Jacques Hiblot <jjhiblot@ti.com>

This is a useful information while debugging the initialization process or
performance issues.
Also dump this information with the other mmc info if the verbose option
is selected
Signed-off-by: NJean-Jacques Hiblot <jjhiblot@ti.com>