Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
Tested-by: NMarkus Pargmann <mpa@pengutronix.de>
Tested-by: NStephen Warren <swarren@nvidia.com>
Signed-off-by: NUlf Hansson <ulf.hansson@linaro.org>
Signed-off-by: NChris Ball <chris@printf.net>

The Freescale esdhc driver is the only driver which needs the interrupt
registers restored after a reset.  Move this quirk to be part of the
ESDHC driver implementation.
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
Tested-by: NMarkus Pargmann <mpa@pengutronix.de>
Tested-by: NStephen Warren <swarren@nvidia.com>
Signed-off-by: NUlf Hansson <ulf.hansson@linaro.org>
Signed-off-by: NChris Ball <chris@printf.net>

We need a lot of imx6 specific things into common esdhc_set_clock
for support SD3.0 and eMMC DDR mode which is not needed for power pc
platforms, so esdhc_set_clock seems not so common anymore.

Instead of keeping add platform specfics things into this common API,
we choose to move that code into platform driver itself to handle.
This can also exclude the dependency between imx and power pc on this
headfile and is easy for maintain in the future.
Signed-off-by: NDong Aisheng <b29396@freescale.com>
Acked-by: NShawn Guo <shawn.guo@linaro.org>
Signed-off-by: NChris Ball <cjb@laptop.org>

This patch adds support of connecting an MMC media using an 8-bit
bus width connection to Freescale's P2020 H/W SDHC controller. During
the probe function, the generic function mmc_of_parse is called to
detect whether the controller is configured with 8-bit bus width.

Also, the generic function detects if the non-removable property is
set in the device tree.  The function esdhc_pltfm_bus_width was added
because the bus width configuration is platform specific.
Signed-off-by: NOded Gabbay <ogabbay@advaoptical.com>
Reviewed-by: NAnton Vorontsov <anton@enomsg.org>
Signed-off-by: NChris Ball <cjb@laptop.org>

The SDCLK is divided down from the host controller clock. Host
controller clock may be different from the maximum SDCLK, so
get it from the platform, instead of just using the max SDCLK.
Signed-off-by: NLucas Stach <l.stach@pengutronix.de>
Acked-by: NShawn Guo <shawn.guo@linaro.org>
Signed-off-by: NChris Ball <cjb@laptop.org>

Since commit 30832ab5 ("mmc: sdhci: Always pass clock request value
zero to set_clock host op") was merged, esdhc_set_clock starts hitting
"if (clock == 0)" where ESDHC_SYSTEM_CONTROL has been operated.  This
causes SDHCI card-detection function being broken.  Fix the regression
by moving "if (clock == 0)" above ESDHC_SYSTEM_CONTROL operation.
Signed-off-by: NShawn Guo <shawn.guo@linaro.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: NChris Ball <cjb@laptop.org>

1ms is enough for hardware to change the clock to stable.
100ms is too long in the tasklet.
Signed-off-by: NTony Lin <tony.lin@freescale.com>
CC: Xiaobo Xie <X.Xie@freescale.com>
CC: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: NChris Ball <cjb@laptop.org>

sdhci-esdhc-imx does not need SDHCI_QUIRK_NO_CARD_NO_RESET.
Make it OF-specific.
Signed-off-by: NRichard Zhu <Hong-Xing.Zhu@freescale.com>
Tested-by: NWolfram Sang <w.sang@pengutronix.de>
Signed-off-by: NChris Ball <cjb@laptop.org>

It can be worked around using a GPIO which will be done for i.MX later.
Signed-off-by: NWolfram Sang <w.sang@pengutronix.de>
Acked-by: NAnton Vorontsov <cbouatmailru@gmail.com>
Tested-by: NMarc Reilly <marc@cpdesign.com.au>
Tested-by: NEric Benard <eric@eukrea.com>
Signed-off-by: NChris Ball <cjb@laptop.org>

Put everything which can be shared between the OF and platform version
of this driver into a local .h file.
Signed-off-by: NWolfram Sang <w.sang@pengutronix.de>
Tested-by: NEric Bénard <eric@eukrea.com>
[cjb: fix compile error: sdhci-esdhc.c->sdhci-esdhc.h]
Signed-off-by: NChris Ball <cjb@laptop.org>