The controller does not clear the "reset bit" when it is reset without
a card in the slot. Because of this, the following error message is seen
while booting with no plugged SD card.

mmc1: Reset 0x1 never completed.

Add the SDHCI_QUIRK_NO_CARD_NO_RESET quirk to avoid this.
Signed-off-by: NIvan T. Ivanov <ivan.ivanov@linaro.org>
Signed-off-by: NGeorgi Djakov <georgi.djakov@linaro.org>
Tested-by: NBjorn Andersson <bjorn.andersson@linaro.org>
Acked-by: NAdrian Hunter <adrian.hunter@intel.com>
Signed-off-by: NUlf Hansson <ulf.hansson@linaro.org>

trivial fix to spelling mistake in dev_err message
Signed-off-by: NColin Ian King <colin.king@canonical.com>
Acked-by: NAdrian Hunter <adrian.hunter@intel.com>
Signed-off-by: NUlf Hansson <ulf.hansson@linaro.org>

Commit 0e748234 ("mmc: sdhci: Add size for caller in init+register")
allows users of sdhci_pltfm to allocate private space in calls to
sdhci_pltfm_init+sdhci_pltfm_register. This patch migrates sdhci-msm
to this allocation.
Signed-off-by: NJisheng Zhang <jszhang@marvell.com>
Acked-by: NArnd Bergmann <arnd@arndb.de>
Acked-by: NAdrian Hunter <adrian.hunter@intel.com>
Signed-off-by: NUlf Hansson <ulf.hansson@linaro.org>

There's no need to allocate one sdhci_msm_pdata for each sdhci_msm_host.
This patch removes the sdhci_msm_pdata member from sdhci_msm_host and
uses one static global sdhci_msm_pdata for all sdhci msm hosts. It also
marks sdhci_msm_ops as const.
Signed-off-by: NJisheng Zhang <jszhang@marvell.com>
Acked-by: NAdrian Hunter <adrian.hunter@intel.com>
Signed-off-by: NUlf Hansson <ulf.hansson@linaro.org>

The mmc_execute_tuning() has already prepared the opcode,
there is no need to prepare it again at mmc_send_tuning(),
and, there is a BUG of mmc_send_tuning() to determine the opcode
by bus width, assume eMMC was running at HS200, 4bit mode,
then the mmc_send_tuning() will overwrite the opcode from CMD21
to CMD19, then got error.

in addition, extend an argument of "cmd_error" to allow getting
if there was cmd error when tune response.
Signed-off-by: NChaotian Jing <chaotian.jing@mediatek.com>
[Ulf: Rebased patch]
Signed-off-by: NUlf Hansson <ulf.hansson@linaro.org>

Ensure SDCC is working with maximum clock otherwise card
detection could be extremely slow, up to 7 seconds.
Signed-off-by: NIvan T. Ivanov <ivan.ivanov@linaro.org>
Reviewed-by: NGeorgi Djakov <georgi.djakov@linaro.org>
Acked-by: NStephen Boyd <sboyd@codeaurora.org>
Signed-off-by: NUlf Hansson <ulf.hansson@linaro.org>

Some versions of this controller do not advertise their 3.0v and
8bit bus-width support capabilities. It is required to explicitly
set these capabilities for the specific controller versions.
Signed-off-by: NGeorgi Djakov <georgi.djakov@linaro.org>
Signed-off-by: NUlf Hansson <ulf.hansson@linaro.org>

Instead of having a local hack taking care of sending the tuning
command and as well to verify the response pattern, let's convert to
the common mmc_send_tuning() API instead.
Signed-off-by: NUlf Hansson <ulf.hansson@linaro.org>
Tested-by: NGeorgi Djakov <gdjakov@mm-sol.com>
Acked-by: NGeorgi Djakov <gdjakov@mm-sol.com>
Reviewed-by: NStephen Boyd <sboyd@codeaurora.org>

The same tuning block exists in the dw_mmc h.c and sdhci-msm.c
files. Move these into mmc.c so that they can be shared across
drivers.
Reported-by: NJaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>
Signed-off-by: NUlf Hansson <ulf.hansson@linaro.org>

If we're tuning on a big-endian CPU we'll never determine we properly
tuned the device because we compare the data we received from the
controller with a table that assumes the CPU is little-endian.
Change the table to be an array of bytes instead of 32-bit words
so we can use memcmp() without needing to byte-swap every word
depending on the endianess of the CPU.

Cc: Asutosh Das <asutoshd@codeaurora.org>
Cc: Venkat Gopalakrishnan <venkatg@codeaurora.org>
Reviewed-by: NGeorgi Djakov <gdjakov@mm-sol.com>
Fixes: 415b5a75 "mmc: sdhci-msm: Add platform_execute_tuning implementation"
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>
Signed-off-by: NUlf Hansson <ulf.hansson@linaro.org>

This patch removes the superflous .owner field for drivers which
use the module_platform_driver API, as this is overriden in
platform_driver_register anyway.
Signed-off-by: NPeter Griffin <peter.griffin@linaro.org>
Signed-off-by: NUlf Hansson <ulf.hansson@linaro.org>

The header <linux/regulator/consumer.h> is unused. Remove it.
Signed-off-by: NGeorgi Djakov <gdjakov@mm-sol.com>
Signed-off-by: NUlf Hansson <ulf.hansson@linaro.org>

The sdhci core was refactored recently and some of those
refactorings required changes in every sdhci platform driver.
Those updates happened around the same time as when the msm
driver was merged so the refactorings missed the msm driver.
Hook in the basic library functions so that we can boot apq8074
dragonboards again instead of crashing when we try to jump to
NULL function pointers.
Reported-by: NKevin Hilman <khilman@linaro.org>
Cc: Georgi Djakov <gdjakov@mm-sol.com>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>
Acked-by: NKumar Gala <galak@codeaurora.org>
Reviewed-by: NGeorgi Djakov <gdjakov@mm-sol.com>
Tested-by: NKevin Hilman <khilman@linaro.org>
Signed-off-by: NUlf Hansson <ulf.hansson@linaro.org>

This patch adds implementation for platform specific tuning in order
to support HS200 bus speed mode on Qualcomm SDHCI controller.
Signed-off-by: NAsutosh Das <asutoshd@codeaurora.org>
Signed-off-by: NVenkat Gopalakrishnan <venkatg@codeaurora.org>
Signed-off-by: NGeorgi Djakov <gdjakov@mm-sol.com>
Acked-by: NUlf Hansson <ulf.hansson@linaro.org>
Signed-off-by: NChris Ball <chris@printf.net>

This platform driver adds the initial support of Secure Digital Host
Controller Interface compliant controller found in Qualcomm chipsets.
Signed-off-by: NAsutosh Das <asutoshd@codeaurora.org>
Signed-off-by: NVenkat Gopalakrishnan <venkatg@codeaurora.org>
Tested-by: NIvan T. Ivanov <iivanov@mm-sol.com>
Signed-off-by: NGeorgi Djakov <gdjakov@mm-sol.com>
Acked-by: NUlf Hansson <ulf.hansson@linaro.org>
Signed-off-by: NChris Ball <chris@printf.net>