Add HS400 support.
Selecting HS400 needs first select HS200 according to spec, so use
a dedicated function for HS400.
Add HS400 related macros.
Remove the restriction of only using the low 6 bits of
EXT_CSD_CARD_TYPE, using all the 8 bits.
Signed-off-by: NPeng Fan <peng.fan@nxp.com>
Cc: Jaehoon Chung <jh80.chung@samsung.com>
Cc: Jean-Jacques Hiblot <jjhiblot@ti.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Kishon Vijay Abraham I <kishon@ti.com>
Cc: Faiz Abbas <faiz_abbas@ti.com>
Cc: Marek Vasut <marex@denx.de>
Signed-off-by: NPeng Fan <peng.fan@nxp.com>

The dev_get_priv(dev) is used twice in the probe function.
Replace the second invocation with priv variable.
Signed-off-by: NMarek Vasut <marek.vasut+renesas@gmail.com>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>

Add support for fetching the clock frequency both using the legacy
method in case clock framework is disabled as well as via the clock
framework if it is enabled. This allows for migration to the clock
framework on platforms which supports it while not breaking legacy
platforms. That said, the legacy method must be removed eventually.
Signed-off-by: NMarek Vasut <marex@denx.de>
Cc: Chin Liang See <chin.liang.see@intel.com>
Cc: Dinh Nguyen <dinguyen@kernel.org>
Cc: Ley Foon Tan <ley.foon.tan@intel.com>

This commit enables support for Exynos Designware MMC driver based on DM.
Signed-off-by: NLukasz Majewski <lukma@denx.de>
Tested-by: NAnand Moon <linux.amoon@gmail.com>
Signed-off-by: NMinkyu Kang <mk7.kang@samsung.com>

By convention for DM_MMC the host->priv is used to store struct udevice
*dev pointer.

Unfortunately, the legacy Exynos DW MMC code uses this field to
store pointer to dwmci_exynos_priv_data struct
Hence, we do need to get data in other way - namely by using container_of
when host pointer is present.
In this way the sdr_timing data is properly accessed.
Signed-off-by: NLukasz Majewski <lukma@denx.de>
Tested-by: NAnand Moon <linux.amoon@gmail.com>
Signed-off-by: NMinkyu Kang <mk7.kang@samsung.com>

This commit prevents memory leak when this function is used with DM_MMC
as the struct dwmci_exynos_priv_data is already allocated by DM.

It is necessary for NON DM aware devices to allocate this struct first.
Signed-off-by: NLukasz Majewski <lukma@denx.de>
Tested-by: NAnand Moon <linux.amoon@gmail.com>
Signed-off-by: NMinkyu Kang <mk7.kang@samsung.com>

As platform uses GPIOs for card detection, it's
simpler and more readable to use GPIO_ACTIVE_(LOW|HIGH)
in the gpio flags instead of using the cd-inverted
property.
Reported-by: NTuomas Tynkkynen <tuomas.tynkkynen@iki.fi>
Signed-off-by: NPatrice Chotard <patrice.chotard@st.com>

Add missing clk_free() call in case of failure
when enabling the clock.
Signed-off-by: NPatrice Chotard <patrice.chotard@st.com>
Reviewed-by: NSimon Glass <sjg@chromium.org>

Config flag CONFIG_BLK becomes mandatory, update arm_pl180_mmci
to support this config.

This driver is used by STM32Fx and by Vexpress platforms.
Only STM32Fx are DM ready. No DM code is isolated and will be
removed easily when wexpress will be converted to DM.
Signed-off-by: NPatrice Chotard <patrice.chotard@st.com>

The Allwinner H6 SoC has 3 MMC controllers like the ones in A64, with
the MMC2 come with the capability to do crypto by EMCE.

Add MMC support for H6. EMCE support is not added yet.
Signed-off-by: NIcenowy Zheng <icenowy@aosc.io>
Reviewed-by: NJagan Teki <jagan@openedev.com>
Tested-by: NJagan Teki <jagan@amarulasolutions.com>

This code is useful for testing the existance of devices that
do not have card detect capabilities.  This breaks out the core
functionality and leaves the actual init logic and error reporting
in mmc_start_init().
Signed-off-by: NJon Nettleton <jon@solid-run.com>
Signed-off-by: NBaruch Siach <baruch@tkos.co.il>
Reviewed-by: NStefano Babic <sbabic@denx.de>

Correctly manage the SDMMC reset and card cycle power
to fully handle the power cycle added in the MMC uclass
and avoid issue with level-shifter with some uSDCARD.

3 states managed in driver:
  1/ reset: SDMMC disable, signal HiZ
  2/ power-cycle: SDMMC disable, signals drive to 0
  3/ power-on: SDMMC enabled
Signed-off-by: NPatrick Delaunay <patrick.delaunay@st.com>
Signed-off-by: NPatrice Chotard <patrice.chotard@st.com>

Commit dd27918c ("dm: mmc: sunxi: Add support for driver model")
only added the allwinner,sun5i-a13-mmc compatible string for this
driver. The DM initialisation code here also works with (at least) A10
and A20, so add the appropriate compatible strings as per Linux 4.17's
driver.

Tested on A10 Cubieboard and A20 pcDuino3 Nano with CONFIG_DM_MMC.
(A20 worked already, because sun7i-a20.dtsi specifies both the A13 and
A20 strings.)
Signed-off-by: NAdam Sampson <ats@offog.org>
Acked-by: NMaxime Ripard <maxime.ripard@bootlin.com>
Reviewed-by: NJagan Teki <jteki@openedev.com>

Add support for loading U-Boot on the Broadcom 7445 SoC.  This port
assumes Broadcom's BOLT bootloader is acting as the second stage
bootloader, and U-Boot is acting as the third stage bootloader, loaded
as an ELF program by BOLT.
Signed-off-by: NThomas Fitzsimmons <fitzsim@fitzsim.org>
Cc: Stefan Roese <sr@denx.de>
Cc: Tom Rini <trini@konsulko.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>

Add code to reset all reset signals as in mmc DT node. A reset property
is an optional feature, so only print out a warning and do not fail if a
reset property is not present.

If a reset property is discovered, then use it to deassert, thus
bringing the IP out of reset.
Signed-off-by: NLey Foon Tan <ley.foon.tan@intel.com>
Reviewed-by: NSimon Glass <sjg@chromium.org>

Code around tuning_loop_counter variable expects to go below zero.
That's why this variable can't use unsigned type.
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>

This patch fixes the mmc tuning command failures
when tuning pattern data needs to read back for
comparision against the expected bit pattern.
Reported-by: NMasahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: NSiva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com>
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>
Tested-by: NMasahiro Yamada <yamada.masahiro@socionext.com>

Add new compatible to the Uniphier SD driver for R8A77990 E3 SoC.
Signed-off-by: NMarek Vasut <marek.vasut+renesas@gmail.com>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>

This patch adds HS200 suuport for ZynqMP and enables
the same for ZC1751 DC1 board which has eMMC on it.
Signed-off-by: NSiva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com>
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>

This patch updates sdhci_send_command() to handle MMC
HS200 tuning command.
Signed-off-by: NSiva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com>
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>

Use live-tree functions.
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>
Reviewed-by: NSimon Glass <sjg@chromium.org>

The compatible string of ftsdc010_mci.c is different from
the mmc driver in Linux Kernel. Modify it for consistency.
Signed-off-by: NRick Chen <rick@andestech.com>
Signed-off-by: NRick Chen <rickchen36@gmail.com>
Cc: Greentime Hu <green.hu@gmail.com>

SDMMC_CMD_CPSMEN bit is wrongly check and set in
SDMMC_ARG register instead of SDMMC_CMD register.
Signed-off-by: NPatrice Chotard <patrice.chotard@st.com>

Convert CONFIG_SUPPORT_EMMC_RPMB to Kconfig. Split the command handling
from the underlying support and expose this through CMD_MMC_RPMB.
Signed-off-by: NAlex Kiernan <alex.kiernan@gmail.com>

The bcm2835 sdhost driver has a problem with "write multiple" commands.
It seems to boil down to the fact that the controller dislikes its FIFO
to get drained at the end of a block when a write multiple blocks command
is in flight.

The easy fix is to simply get rid of all the IRQ driven logic and make
the driver push as much data into the FIFO as it can. That way we never
drain and we never run into the problem.
Reported-by: NJan Leonhardt <jan@cyberdesigner.net>
Signed-off-by: NAlexander Graf <agraf@suse.de>

The check is necessary to avoid NULL pointer dereference.
Signed-off-by: NRamon Fried <ramon.fried@gmail.com>
Reviewed-by: NMichal Simek <michal.simek@xilinx.com>

Drop all the extra content from the MMC core, so that tiny MMC support
is really tiny, no fancy anything. That means the tiny MMC support does
only 1-bit transfers at default speed settings. Moreover, this patch
drops duplicate instance of struct mmc mmc_static, which wasted about
360 bytes. Furthermore, since MMC tiny supports only one controller
at all times, get rid of mallocating the ext csd backup and replace
it with static array. All in all, this patch saves ~4 kiB of bloat
from the MMC core, which on platforms with severe limitations can be
beneficial.
Signed-off-by: NMarek Vasut <marek.vasut@gmail.com>
Cc: Jaehoon Chung <jh80.chung@samsung.com>
[trini: Fixup checkpatch.pl style warnings]
Signed-off-by: NTom Rini <trini@konsulko.com>

This patch adds support of SD3.0 for ZynqMP.
Signed-off-by: NSiva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com>
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>

This patch reads the capabilities register1 and update the host
caps accordingly for mmc layer usage. This patch mainly reads
for UHS capabilities inorder to support SD3.0.
Signed-off-by: NSiva Durga Prasad Paladugu <sivadur@xilinx.com>
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>

This patch adds support to invoke any platform specific tuning
and delay routines if available.
Signed-off-by: NSiva Durga Prasad Paladugu <sivadur@xilinx.com>
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>

This patch upadted sdhci_send_command to handle execute tuning
command.
Signed-off-by: NSiva Durga Prasad Paladugu <sivadur@xilinx.com>
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>

This patch adds support to disable clock if clk_disable
was set and then enable or set clock if the clock was changed
or clock was disabled when clock needs to be enabled.
Signed-off-by: NSiva Durga Prasad Paladugu <sivadur@xilinx.com>
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>

This patch changed the datatype of variable "start" from uint to ulong
to work properly on 64-bit machines as well. Also the return type of
get_timer() function is ulong.
Signed-off-by: NVipul Kumar <vipul.kumar@xilinx.com>
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>

On a socfpga_cyclone5 based board the SD card, was never powered up. For
other dw_mmc based SoCs dwmci_probe() is called in the platform specific
probe(). It seems this call is missing for socfpga_dw_mmc.

With this change DWMCI_PWREN is set by dmwci_init().
Signed-off-by: NPatrick Bruenn <p.bruenn@beckhoff.com>
Reviewed-by: NJaehoon Chung <jh80.chung@samsung.com>

Add the MMC_TRACE config in Kconfig.
Signed-off-by: NJaehoon Chung <jh80.chung@samsung.com>

Add the debug message for checking the mmc clock status.
It's helpful to debug the controlling clock.
Signed-off-by: NJaehoon Chung <jh80.chung@samsung.com>

mmc_set_clock() function has the disable argument as bool type.
When mmc_set_clock is called, it might be passed to "true" or "false".
But it's too confusion whether clock is enabled or disabled with only
"true" and "false".
To prevent the confusion, replace to MMC_CLK_ENABLE/DISABLE macro from
true/false.
Signed-off-by: NJaehoon Chung <jh80.chung@samsung.com>

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: NTom Rini <trini@konsulko.com>

The 'SDHCI_QUIRK_NO_HISPD_BIT' is used wrong here. The purpose of this
quirk is to tell the sdhci-driver that the IP-core doesn't have a "high-
speed-enable" bit in its registers.

With this commit we change this to the correct quirk:
SDHCI_QUIRK_BROKEN_HISPD_MODE
Signed-off-by: NHannes Schmelzer <hannes.schmelzer@br-automation.com>

Some IP-core implementations of the SDHCI have different troubles on the
silicon where they are placed.

On ZYNQ platform for example Xilinx doesn't accept the hold timing of an
eMMC chip which operates in High-Speed mode and must be forced to
operate in non high-speed mode. To get rid of this
"SDHCI_QUIRK_BROKEN_HISPD_MODE" is introduced.

For more details about this refer to the Xilinx answer-recor #59999
https://www.xilinx.com/support/answers/59999.html

This commit:
- doesn't set HISPD bit on the host-conroller
- reflects this fact within the host-controller capabilities

Upon this the layer above (mmc-driver) can setup the card correctly.

Otherwise the MMC card will be switched into high-speed mode and causes
possible timing violation on the host-controller side.
Signed-off-by: NHannes Schmelzer <oe5hpm@oevsv.at>
Signed-off-by: NHannes Schmelzer <hannes.schmelzer@br-automation.com>