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I have encountered an interrupt storm during the eMMC chip probing (and
the chip finally didn't get detected). It turned out that U-Boot left
the SDHI DMA interrupts enabled while the Linux driver didn't use those.
Masking those interrupts in renesas_sdhi_internal_dmac_request_dma() gets
rid of both issues...
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Fixes: 2a68ea7896e3 ("mmc: renesas-sdhi: add support for R-Car Gen3 SDHI DMAC")
Cc: stable@vger.kernel.org # v4.14+
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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The DM_CM_RST register actually has bits 0-31 defaulting to 1s and bits
32-63 defaulting to 0s -- fix off-by-one in #define RST_RESERVED_BITS.
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Fixes: 2a68ea7896e3 ("mmc: renesas-sdhi: add support for R-Car Gen3 SDHI DMAC")
Cc: stable@vger.kernel.org # v4.14+
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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The mmc block driver does not support parallel dispatch of requests. In
normal circumstances, all requests are anyway funneled through a single
work item, so parallel dispatch never happens. However it can happen if
there is no elevator.
Fix that by detecting if a dispatch is in progress and returning busy
(BLK_STS_RESOURCE) in that case
Fixes: 81196976ed94 ("mmc: block: Add blk-mq support")
Cc: stable@vger.kernel.org # v4.16+
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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The conversion to sg_copy_{from,to}_buffer has been done in the wrong
way. sg_copy_to_buffer is a copy from an SG list to a linear buffer so
it can't replace memcpy(dest, host->virt_base, data->sg->length) where
dest is the virtual address of the SG. Same for sg_copy_from_buffer
but in the opposite way.
Signed-off-by: Ludovic Desroches <ludovic.desroches@microchip.com>
Suggested-by: Douglas Gilbert <dgilbert@interlog.com>
Fixes: 53d7e098ba08 ("mmc: android-goldfish: use sg_copy_{from,to}_buffer")
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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The conversion to sg_copy_{from,to}_buffer has been done in the wrong
way. sg_copy_to_buffer is a copy from an SG list to a linear buffer so
it can't replace memcpy(buf + offset, &value, remaining) where buf is
the virtual address of the SG. Same for sg_copy_to_buffer but in the
opposite way.
Signed-off-by: Ludovic Desroches <ludovic.desroches@microchip.com>
Suggested-by: Douglas Gilbert <dgilbert@interlog.com>
Fixes: 5b4277814e3f ("mmc: atmel-mci: use sg_copy_{from,to}_buffer")
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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mmc_select_hs400es() calls mmc_select_bus_width() which will continue
to set 4bit transfer mode if fail to set 8bit mode. The bus width
should not be set to 4bit in HS400es.
When fail to set 8bit mode, need return error directly for HS400es.
Signed-off-by: Hongjie Fang <hongjiefang@asrmicro.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Pass TMIO_MASK_CMD to tmio_mmc_enable_mmc_irqs() directly,
and remove the variable, irq_mask.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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When tuning each tap is issued CMD19 twice and the result of both runs
recorded in host->taps. If the result is different between the two runs
the wrong sampling clock position was selected. Fix this by merging the
two runs and only keep the result for each tap if it was good in both
sets.
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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If the return value of mmc_send_tuning() is error other than -EILSEQ,
the tuning fails and process goes out of for_loop. The correct
processing is to judge their TAP as not good (NG) and continue.
Signed-off-by: Masaharu Hayakawa <masaharu.hayakawa.ry@renesas.com>
[Niklas: update commit message]
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Recent Linux versions refuse to print actual virtual kernel addresses,
to not give a hint about the location of the kernel in a randomized virtual
address space. This affects the output of the sunxi MMC controller
driver, which now produces the rather uninformative line:
[ 1.482660] sunxi-mmc 1c0f000.mmc: base:0x(____ptrval____) irq:8
Since the virtual base address is not really interesting in the first
place, let's just drop this value. The same applies to Linux' notion of
the interrupt number, which is independent from the GIC SPI number.
We have the physical address as part of the DT node name, which is way
more useful for debugging purposes.
To keep a success message in the driver, we make this purpose explicit
with the word "initialized", plus print some information that is not too
obvious and that we learned while probing the device:
the maximum request size and whether it uses the new timing mode.
So the output turns into:
[ 1.750626] sunxi-mmc 1c0f000.mmc: initialized, max. request size: 16384 KB, uses new timings mode
[ 1.786699] sunxi-mmc 1c11000.mmc: initialized, max. request size: 2048 KB
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Some Allwinner boards feature an on-board eMMC with fixed 3.3V voltage
(e.g. Banana Pi M2+), and in this case both the eMMC and the SoC are
capable of doing 3.3V DDR transmission.
Add capability of 3.3V DDR when DDR is available (extra clock or new
timing).
Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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As a first step to improve the variant specific code for mmci, add a
->dma_setup() callback to the struct mmci_host_ops.
To show its use, let's deploy the callback for the qcom dml, which involves
also to the assign the mmci_host_ops pointer from the variant ->init()
callback.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Ludovic Barre <ludovic.barre@st.com>
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To be able to better support different mmci variants, we need to be able to
use variant specific callbacks, rather than continue to sprinkle the code
with additional variant data. To move in this direction, let's add an
optional ->init() callback to the variant data struct, which variants shall
use to assign the mmci_host_ops pointer.
Using an ->init() callback enables us to partition the code between
different files. To allow separate mmci variant files to implement the
variant specifics, let's also move the definition of the struct
variant_data to the common mmci header file.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Ludovic Barre <ludovic.barre@st.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
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Tegra SDHCI controllers require the SDHCI clock divider to be configured
to divide the clock by two in DDR50/52 modes. Incorrectly configured
clock divider results in corrupted data.
Prevent the possibility of incorrectly calculating the divider value due
to clock rate rounding or low parent clock frequency by not assigning
host->max_clk to clk_get_rate() on tegra_sdhci_set_clock().
See the comments for further details.
Fixes: a8e326a ("mmc: tegra: implement module external clock change")
Signed-off-by: Aapo Vienamo <avienamo@nvidia.com>
Acked-by: Jon Hunter <jonathanh@nvidia.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Add MSI interrupt support if the SD host device can support MSI interrupt.
Signed-off-by: ernest.zhang <ernest.zhang@bayhubtech.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Add hardware tuning function instead of software tuning because O2/Bayhub
SD host controller support hardware tuning.
Signed-off-by: ernest.zhang <ernest.zhang@bayhubtech.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Export sdhci tuning function symbols which are used by other SD Host
controller driver modules.
Signed-off-by: ernest.zhang <ernest.zhang@bayhubtech.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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O2 SD Host HS200 mode clock frequency current is 208MHz, should be changed
to 200MHz to meet specification.
Signed-off-by: ernest.zhang <ernest.zhang@bayhubtech.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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When use eMMC as boot device, the eMMC signaling voltage is tied to 1.8v
fixed output voltage, bios can set o2 sd host controller PCI configuration
register 0x308 bit4 to 1 to let driver skip 3.3v signaling voltage and
direct use 1.8v singling voltage in eMMC initialize process.
Signed-off-by: ernest.zhang <ernest.zhang@bayhubtech.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Implement and use tegra_sdhci_get_max_clock() which returns the true
maximum host clock rate. The issue with tegra_sdhci_get_max_clock() is
that it returns the current clock rate of the host instead of the
maximum one, which can lead to unnecessarily small clock rates.
This differs from the previous implementation of
tegra_sdhci_get_max_clock() in that it doesn't divide the result by two.
Signed-off-by: Aapo Vienamo <avienamo@nvidia.com>
Tested-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Looks like the adjusted syntax wasn't fully build tested. This fixes
failures with powerpc builds:
drivers/mmc/host/mxcmmc.c: In function ‘mxcmci_swap_buffers’:
drivers/mmc/host/mxcmmc.c:296:51: error: expected ‘)’ before ‘;’ token
void *buf = kmap_atomic(sg_page(sg) + sg->offset;
^
drivers/mmc/host/mxcmmc.c:299:1: error: expected ‘,’ or ‘;’ before ‘}’ token
}
^
Fixes: b189e7589f6d3 ("mmc: mxcmmc: handle highmem pages")
Signed-off-by: Kees Cook <keescook@chromium.org>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Tested-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Fix indent. This also makes disable/enable clock blocks look
alike.
Signed-off-by: Stefan Agner <stefan@agner.ch>
Acked-by: Dong Aisheng <aisheng.dong@nxp.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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In the uSDHC case (e.g. i.MX 6) clocks only get disabled if frequency
is set to 0. However, it could be that the stack asks for a frequency
change while clocks are on. In that case the function clears the
divider registers (by clearing ESDHC_CLOCK_MASK) while the clock is
enabled! This causes a short period of time where the clock is
undivided (on a i.MX 6DL a clock of 196MHz has been measured).
For older IP variants the driver disables clock by clearing some bits
in ESDHC_SYSTEM_CONTROL.
Make sure to disable card clock before changing frequency for uSDHC
IP variants too.
Signed-off-by: Stefan Agner <stefan@agner.ch>
Acked-by: Dong Aisheng <aisheng.dong@nxp.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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It seems that SD3.0 advertisement needs to be set for higher eMMC
speed modes (namely DDR52) as well. The TRM states that the SD3.0
advertisement bit should be set for all controller instances, even
for those not supporting UHS-I mode...
When specifying vqmmc-supply as a fixed 1.8V regulator on a Tegra
SD/MMC instance which is connected to a eMMC device, the stack
enables SD3.0. However, enabling it has consequences: If SDHCI 3.0
support is advertised the stack enables Auto-CMD23. Unfortunately
Auto-CMD23 seems not to work well with Tegra 3 currently. It leads
to regular warnings:
mmc2: Got command interrupt 0x00010000 even though no command operation was in progress.
It is not entirely clear why those errors happens. It seems that
a Linux 3.1 based downstream kernel which has Auto-CMD23 support
does not show those warnings.
Use quirk SDHCI_QUIRK2_ACMD23_BROKEN to prevent Auto-CMD23 being
used for now. With this the eMMC works stable on high-speed mode
while still announcing SD3.0.
This allows to use mmc-ddr-1_8v to enables DDR52 mode. In DDR52
mode read speed improves from about 42MiB/s to 72MiB/s on an
Apalis T30.
Signed-off-by: Stefan Agner <stefan@agner.ch>
Tested-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Make sure the clock is doubled when using eMMC DDR52 mode.
Signed-off-by: Stefan Agner <stefan@agner.ch>
Tested-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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The stack assumes that SDHC controller which support SD3.0 (SDR104) do
support HS200. This is not the case for Tegra 3, which does support SD
3.0
but only supports eMMC spec 4.41.
Use SDHCI_QUIRK2_BROKEN_HS200 to indicate that the controller does not
support HS200.
Note that commit 156e14b126ff ("mmc: sdhci: fix caps2 for HS200") added
the tie between SD3.0 (SDR104) and HS200. I don't think that this is
necessarly true. It is fully legitimate to support SD3.0 and not support
HS200. The quirk naming suggests something is broken in the controller,
but this is not the case: The controller simply does not support HS200.
Fixes: 7ad2ed1dfcbe ("mmc: tegra: enable UHS-I modes")
Signed-off-by: Stefan Agner <stefan@agner.ch>
Tested-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Synopsys has DWC MSHC controller on HPAS-DX platform connected using PCIe
interface with SD card slot and eMMC device slots. This patch is to
enable SD cards connected on this platform. As Clock generation logic
is implemented using MMCM module of HAPS-DX platform, we have separate
functions to control the MMCM to generate required clocks with respect
to speed mode.
Signed-off-by: Prabu Thangamuthu <prabu.t@synopsys.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Adopt the SPDX license identifier headers to ease license compliance
management.
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Add a driver for SDHCI OF Synopsys DesignWare Cores Mobile Storage
Signed-off-by: Jisheng Zhang <Jisheng.Zhang@synaptics.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
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For eMMC devices it is valid to only support 1.8V signaling. When
vqmmc is set to a fixed 1.8V regulator the stack tries to set 3.3V
initially and prints the following warning:
mmc1: Switching to 3.3V signalling voltage failed
Clear the MMC_SIGNAL_VOLTAGE_330 flag in case 3.3V is signaling is
not available. This prevents the stack from even trying to use
3.3V signaling and avoids the above warning.
Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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SDHCI controller in ls1043a and ls1046a generate 40-bit wide addresses
when doing DMA. Make sure that the corresponding dma mask is correctly
configured.
Context: when enabling smmu on these chips the following problem is
encountered: the smmu input address size is 48 bits so the dma mappings
for sdhci end up 48-bit wide. However, on these chips sdhci only use
40-bits of that address size when doing dma.
So you end up with a 48-bit address translation in smmu but the device
generates transactions with clipped 40-bit addresses, thus smmu context
faults are triggered. Setting up the correct dma mask fixes this
situation.
Signed-off-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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There is a error message within devm_ioremap_resource
already, so remove the dev_err call to avoid redundant
error message.
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.
Warning level 2 was used: -Wimplicit-fallthrough=2
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Just a cosmetic cleanup with no functional impact.
Signed-off-by: Daniel Mack <daniel@zonque.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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A recent commit introduced a call to mmc_of_parse() and removed the
explicit assignment of GPIOs in the pdata structure. This will leave
them set to 0, which is a valid GPIO per se, so the code that looks
at these members will try to allocate them and fail.
To fix this properly, make the following changes:
a) Refrain from allocating and assiging a pdata struct from
pxamci_of_init(). It's a hack to do it this way anyway.
Instead, move the only remaining member of interest in
'struct pxamci_host' and assign the value from either
the passed in pdata pointer or with the value read from DT.
b) Let the only user of 'detect_delay_ms' look at the member of
'struct pxamci_host', not the pdata.
c) Make more code in pxamci_probe() dependent on the presence of
actual pdata.
This will also ease the removal of pdata one day.
Signed-off-by: Daniel Mack <daniel@zonque.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Strip some code by letting the mmc core handle the regulators. The old
.gpio_power pdata handling is kept around for now.
This also set the voltage on the regulator and handles -EPROBE_DEFER
correctly.
Signed-off-by: Daniel Mack <daniel@zonque.org>
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Devicetree-enabled boards should use proper regulators to control the
power of cards, not GPIOs, so let's remove this property. The regulator
properties are supported by the MMC core and are described in the
generic MMC document:
Documentation/devicetree/bindings/mmc/mmc.txt
Note that devicetree support for PXA platforms hasn't fully landed yet,
so this binding does not have any users at this point.
Signed-off-by: Daniel Mack <daniel@zonque.org>
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Call into mmc_of_parse() from pxamci_of_init(). As it needs a pointer to a
struct mmc_host, refactor the code a bit.
This allows all generic MMC properties to be set that are described in
Documentation/devicetree/bindings/mmc/mmc.txt. Reword the documentation
a bit to make that clear.
The "cd" and "wp" gpio lookups are removed as the lookup will now be
done by mmc_of_parse().
Signed-off-by: Daniel Mack <daniel@zonque.org>
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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pxamci_of_init() had some weird indenting.
Signed-off-by: Daniel Mack <daniel@zonque.org>
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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These gpio assignments don't make sense, as they are not used anywhere.
Remove the dead code.
Signed-off-by: Daniel Mack <daniel@zonque.org>
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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These members are no longer in use, so let's remove them.
Signed-off-by: Daniel Mack <daniel@zonque.org>
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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This seems to be a left-over from times before the IRQ was handled by devm
functions. Remove it.
Signed-off-by: Daniel Mack <daniel@zonque.org>
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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The field support_vsel is currently only used in the device tree
case. Get rid of it. No change in behavior.
Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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The uSDHC supports DDR modes for eMMC devices running at 3.3V. This
allows to run eMMC with 3.3V signaling voltage at DDR52 mode:
# cat /sys/kernel/debug/mmc1/ios
clock: 52000000 Hz
vdd: 21 (3.3 ~ 3.4 V)
bus mode: 2 (push-pull)
chip select: 0 (don't care)
power mode: 2 (on)
bus width: 3 (8 bits)
timing spec: 8 (mmc DDR52)
signal voltage: 0 (3.30 V)
driver type: 0 (driver type B)
Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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The last user of mmc_power_save|restore_host() APIs is gone, hence let's
drop them. Drop also the corresponding bus_ops callback,
->power_save|restore() as those becomes redundant.
Cc: Tony Lindgren <tony@atomide.com>
Cc: Eyal Reizer <eyalreizer@gmail.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Convert to use of_match_node method to fix up eSDHC clock for
ls1046a/ls1012a/p1010. Also add eSDHC clock fixup for ls1021a
according to its datasheet. The maxmum speed for ls1021a eSDHC
high speed mode is 46.5MHz.
Signed-off-by: Yinbo Zhu <yinbo.zhu@nxp.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Some controllers immediately report SDHCI_CLOCK_INT_STABLE after
enabling the clock even when the clock is not stable. When used in
conjunction with older/slower cards, this can result in:
mmc0: error -84 whilst initialising SD card
When the stable reporting is known to be broken, we simply wait for the
maximum stabilization period.
Signed-off-by: Helmut Grohne <h.grohne@intenta.de>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Add PCI Ids for Intel ICP.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Add support to use the new compatible string "qcom,sdhci-msm-v5".
Based on the msm variant, pick the relevant variant data and
use it for register read/write to msm specific registers.
Signed-off-by: Sayali Lokhande <sayalil@codeaurora.org>
Signed-off-by: Vijay Viswanath <vviswana@codeaurora.org>
Reviewed-by: Evan Green <evgreen@chromium.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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