mmc: sdhci: add UHS-II module and add a kernel configuration

This patch adds sdhci-uhs2.c as a module for UHS-II support.
This is a skeleton for further development in this patch series.

This kerne

mmc: sdhci: add UHS-II module and add a kernel configuration

This patch adds sdhci-uhs2.c as a module for UHS-II support.
This is a skeleton for further development in this patch series.

This kernel configuration, CONFIG_MMC_SDHCI_UHS2, will be used
in the following commits to indicate UHS-II specific code in sdhci
controllers.

Signed-off-by: Ben Chuang <[email protected]>
Signed-off-by: AKASHI Takahiro <[email protected]>
Signed-off-by: Victor Shih <[email protected]>
Acked-by: Adrian Hunter <[email protected]>
Message-ID: <[email protected]>
Signed-off-by: Ulf Hansson <[email protected]>

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mmc: sdhci-of-ma35d1: Add Nuvoton MA35D1 SDHCI driver

Add the SDHCI driver for the MA35D1 platform. It is based upon the
SDHCI interface, but requires some extra initialization.

Signed-off-by: Shan

mmc: sdhci-of-ma35d1: Add Nuvoton MA35D1 SDHCI driver

Add the SDHCI driver for the MA35D1 platform. It is based upon the
SDHCI interface, but requires some extra initialization.

Signed-off-by: Shan-Chun Hung <[email protected]>
Acked-by: Adrian Hunter <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Ulf Hansson <[email protected]>

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mmc: dw_mmc: add support for hi3798mv200

Add support for Hi3798MV200 specific extension.

Signed-off-by: Yang Xiwen <[email protected]>
Link: https://lore.kernel.org/r/20240229-b4-mmc-hi3798m

mmc: dw_mmc: add support for hi3798mv200

Add support for Hi3798MV200 specific extension.

Signed-off-by: Yang Xiwen <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Ulf Hansson <[email protected]>

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mmc: sdhci-npcm: Add NPCM SDHCI driver

Add Nuvoton NPCM BMC sdhci-pltfm controller driver.

Signed-off-by: Tomer Maimon <[email protected]>
Acked-by: Adrian Hunter <[email protected]>
Review

mmc: sdhci-npcm: Add NPCM SDHCI driver

Add Nuvoton NPCM BMC sdhci-pltfm controller driver.

Signed-off-by: Tomer Maimon <[email protected]>
Acked-by: Adrian Hunter <[email protected]>
Reviewed-by: Andy Shevchenko <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Ulf Hansson <[email protected]>

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mmc: starfive: Add sdio/emmc driver support

Add sdio/emmc driver support for StarFive JH7110 soc.

Tested-by: Conor Dooley <[email protected]>
Signed-off-by: William Qiu <william.qiu@starfi

mmc: starfive: Add sdio/emmc driver support

Add sdio/emmc driver support for StarFive JH7110 soc.

Tested-by: Conor Dooley <[email protected]>
Signed-off-by: William Qiu <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Ulf Hansson <[email protected]>

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mmc: remove tmio_mmc driver

With the TMIO MFD support gone, the corresponding MMC host driver can
be removed as well. The remaining tmio_mmc_core module however is still
used by both the Renesas and

mmc: remove tmio_mmc driver

With the TMIO MFD support gone, the corresponding MMC host driver can
be removed as well. The remaining tmio_mmc_core module however is still
used by both the Renesas and Socionext host drivers.

Cc: Ian Molton <[email protected]>
Cc: Ulf Hansson <[email protected]>
Cc: [email protected]
Cc: [email protected]
Acked-by: Wolfram Sang <[email protected]>
Acked-by: Robert Jarzmik <[email protected]>
Signed-off-by: Arnd Bergmann <[email protected]>

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mmc: remove s3cmci driver

The s3c24xx platform is gone, so this driver can be removed as well.

Reviewed-by: Krzysztof Kozlowski <[email protected]>
Acked-by: Ulf Hansson <ulf.hansson@l

mmc: remove s3cmci driver

The s3c24xx platform is gone, so this driver can be removed as well.

Reviewed-by: Krzysztof Kozlowski <[email protected]>
Acked-by: Ulf Hansson <[email protected]>
Signed-off-by: Arnd Bergmann <[email protected]>

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mmc: remove cns3xxx driver

The cns3xxx platform is gone, so this driver is now orphaned.

Cc: Krzysztof Halasa <[email protected]>
Acked-by: Ulf Hansson <[email protected]>
Signed-off-by: Arnd Be

mmc: remove cns3xxx driver

The cns3xxx platform is gone, so this driver is now orphaned.

Cc: Krzysztof Halasa <[email protected]>
Acked-by: Ulf Hansson <[email protected]>
Signed-off-by: Arnd Bergmann <[email protected]>

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mmc: Add mmc driver for Sunplus SP7021

This is a patch for mmc driver for Sunplus SP7021 SOC.
Supports eMMC 4.41 DDR 104MB/s speed mode.

Acked-by: Arnd Bergmann <[email protected]>
Signed-off-by: Tony

mmc: Add mmc driver for Sunplus SP7021

This is a patch for mmc driver for Sunplus SP7021 SOC.
Supports eMMC 4.41 DDR 104MB/s speed mode.

Acked-by: Arnd Bergmann <[email protected]>
Signed-off-by: Tony Huang <[email protected]>
Link: https://lore.kernel.org/r/c92d67596f3cc10d41585b9ab82be7da2cc4c9d8.1669023361.git.tonyhuang.sunplus@gmail.com
Signed-off-by: Ulf Hansson <[email protected]>

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mmc: Add driver for LiteX's LiteSDCard interface

LiteX (https://github.com/enjoy-digital/litex) is a SoC framework
that targets FPGAs. LiteSDCard is a small footprint, configurable
SDCard core commo

mmc: Add driver for LiteX's LiteSDCard interface

LiteX (https://github.com/enjoy-digital/litex) is a SoC framework
that targets FPGAs. LiteSDCard is a small footprint, configurable
SDCard core commonly used in LiteX designs.

The driver was first written in May 2020 and has been maintained
cooperatively by the LiteX community. Thanks to all contributors!

Co-developed-by: Kamil Rakoczy <[email protected]>
Signed-off-by: Kamil Rakoczy <[email protected]>
Co-developed-by: Maciej Dudek <[email protected]>
Signed-off-by: Maciej Dudek <[email protected]>
Co-developed-by: Paul Mackerras <[email protected]>
Signed-off-by: Paul Mackerras <[email protected]>
Signed-off-by: Gabriel Somlo <[email protected]>
Reviewed-by: Joel Stanley <[email protected]>
Reviewed-by: Andy Shevchenko <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Ulf Hansson <[email protected]>

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mmc: sdhci-pci: Remove dead code (struct sdhci_pci_data et al)

The last user of this struct gone a couple of releases ago.
Besides that there were not so many users of this API for
more than 10 year

mmc: sdhci-pci: Remove dead code (struct sdhci_pci_data et al)

The last user of this struct gone a couple of releases ago.
Besides that there were not so many users of this API for
more than 10 years:

1/ The one is Intel Merrifield, that had been added 2016-08-31
by the commit 3976b0380b31 ("x86/platform/intel-mid: Enable
SD card detection on Merrifield") and removed 2021-02-11 by
the commit 4590d98f5a4f ("sfi: Remove framework for deprecated
firmware").

2/ The other is Intel Sunrisepoint related, that had been added
2015-02-06 by the commit e1bfad6d936d ("mmc: sdhci-pci: Add
support for drive strength selection for SPT") and removed
2017-03-20 by the commit 51ced59cc02e ("mmc: sdhci-pci: Use
ACPI DSM to get driver strength for some Intel devices").

Effectively this is a revert of the commit 52c506f0bc72 ("mmc:
sdhci-pci: add platform data").

Signed-off-by: Andy Shevchenko <[email protected]>
Acked-by: Adrian Hunter <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Ulf Hansson <[email protected]>

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mmc: mmc_spi: Make of_mmc_spi.c resource provider agnostic

In order to use the same driver on non-OF platforms, make
of_mmc_spi.c resource provider agnostic.

Signed-off-by: Andy Shevchenko <andriy.

mmc: mmc_spi: Make of_mmc_spi.c resource provider agnostic

In order to use the same driver on non-OF platforms, make
of_mmc_spi.c resource provider agnostic.

Signed-off-by: Andy Shevchenko <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Ulf Hansson <[email protected]>

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mmc: host: Retire MMC_GOLDFISH

Android Studio Emulator no longer uses this driver, so let's drop it.

Signed-off-by: Roman Kiryanov <[email protected]>
Link: https://lore.kernel.org/r/20210209190850.1

mmc: host: Retire MMC_GOLDFISH

Android Studio Emulator no longer uses this driver, so let's drop it.

Signed-off-by: Roman Kiryanov <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Ulf Hansson <[email protected]>

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mmc: cqhci: add support for inline encryption

Add support for eMMC inline encryption using the blk-crypto framework
(Documentation/block/inline-encryption.rst).

eMMC inline encryption support is sp

mmc: cqhci: add support for inline encryption

Add support for eMMC inline encryption using the blk-crypto framework
(Documentation/block/inline-encryption.rst).

eMMC inline encryption support is specified by the upcoming JEDEC eMMC
v5.2 specification. It is only specified for the CQ interface, not the
non-CQ interface. Although the eMMC v5.2 specification hasn't been
officially released yet, the crypto support was already agreed on
several years ago, and it was already implemented by at least two major
hardware vendors. Lots of hardware in the field already supports and
uses it, e.g. Snapdragon 630 to give one example.

eMMC inline encryption support is very similar to the UFS inline
encryption support which was standardized in the UFS v2.1 specification
and was already upstreamed. The only major difference is that eMMC
limits data unit numbers to 32 bits, unlike UFS's 64 bits.

Like we did with UFS, make the crypto support opt-in by individual
drivers; don't enable it automatically whenever the hardware declares
crypto support. This is necessary because in every case we've seen,
some extra vendor-specific logic is needed to use the crypto support.

Co-developed-by: Satya Tangirala <[email protected]>
Signed-off-by: Satya Tangirala <[email protected]>
Acked-by: Adrian Hunter <[email protected]>
Reviewed-by: Satya Tangirala <[email protected]>
Reviewed-and-tested-by: Peng Zhou <[email protected]>
Signed-off-by: Eric Biggers <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Ulf Hansson <[email protected]>

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mmc: cqhci: rename cqhci.c to cqhci-core.c

Rename cqhci.c to cqhci-core.c so that another source file can be added
to the cqhci module without having to rename the module.

Acked-by: Adrian Hunter <

mmc: cqhci: rename cqhci.c to cqhci-core.c

Rename cqhci.c to cqhci-core.c so that another source file can be added
to the cqhci module without having to rename the module.

Acked-by: Adrian Hunter <[email protected]>
Reviewed-and-tested-by: Peng Zhou <[email protected]>
Signed-off-by: Eric Biggers <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Ulf Hansson <[email protected]>

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mmc: remove sirf prima/atlas driver

The CSR SiRF prima2/atlas platforms are getting removed, so this driver
is no longer needed.

Cc: Barry Song <[email protected]>
Signed-off-by: Arnd Bergmann <arn

mmc: remove sirf prima/atlas driver

The CSR SiRF prima2/atlas platforms are getting removed, so this driver
is no longer needed.

Cc: Barry Song <[email protected]>
Signed-off-by: Arnd Bergmann <[email protected]>
Acked-by: Barry Song <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Ulf Hansson <[email protected]>

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mmc: remove dw_mmc-zx driver

The zte zx platform is getting removed, so this driver is no
longer needed.

Cc: Jun Nie <[email protected]>
Cc: Shawn Guo <[email protected]>
Signed-off-by: Arnd Ber

mmc: remove dw_mmc-zx driver

The zte zx platform is getting removed, so this driver is no
longer needed.

Cc: Jun Nie <[email protected]>
Cc: Shawn Guo <[email protected]>
Signed-off-by: Arnd Bergmann <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Ulf Hansson <[email protected]>

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mmc: sdhci-of-sparx5: Add Sparx5 SoC eMMC driver

This adds the eMMC driver for the Sparx5 SoC. It is based upon the
designware IP, but requires some extra initialization and quirks.

Signed-off-by:

mmc: sdhci-of-sparx5: Add Sparx5 SoC eMMC driver

This adds the eMMC driver for the Sparx5 SoC. It is based upon the
designware IP, but requires some extra initialization and quirks.

Signed-off-by: Lars Povlsen <[email protected]>
Acked-by: Adrian Hunter <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Ulf Hansson <[email protected]>

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mmc: host: add Coldfire esdhc support

This driver has been developed as a separate module starting
from the similar sdhci-esdhc-imx.c.

Reasons for a separate sdchi-esdhc-mcf driver:

- m68K archite

mmc: host: add Coldfire esdhc support

This driver has been developed as a separate module starting
from the similar sdhci-esdhc-imx.c.

Reasons for a separate sdchi-esdhc-mcf driver:

- m68K architecture does not support devicetrees, so modifying
sdhci-of-esdhc.c that is devicetree-related adding platform data
seems not appropriate,
- clock-related part, has to be implemented specifically for
mcf5441x family (see esdhc_mcf_pltfm_set_clock()),
- this is a big endian cpu accessing a big endian controller,
but about sdma, this controller does not support hw swap, which
needs to be handled with specific code,
- some other minor differences but mainly to avoid risks on
tweaking inside largely used imx driver. Adding just a small
size ColdFire-specific driver, with benefits in a further less
risky maintenance.

Signed-off-by: Angelo Dureghello <[email protected]>
Acked-by: Adrian Hunter <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Ulf Hansson <[email protected]>

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mmc: meson-mx-sdhc: Fix building with CONFIG_MMC_MESON_MX_SDHC=m

For an x86_64 allmodconfig build Stephen reports that building
meson-mx-sdhc-clkc.o warns that MODULE_LICENSE is missing and when
lin

mmc: meson-mx-sdhc: Fix building with CONFIG_MMC_MESON_MX_SDHC=m

For an x86_64 allmodconfig build Stephen reports that building
meson-mx-sdhc-clkc.o warns that MODULE_LICENSE is missing and when
linking meson_mx_sdhc_register_clkc cannot be found.

Compile the MMC controller driver together with the build-in clock
controller driver into one module rather than using two separate
modules to fix these issues.

Reported-by: Stephen Rothwell <[email protected]>
Signed-off-by: Martin Blumenstingl <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Ulf Hansson <[email protected]>

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mmc: host: meson-mx-sdhc: new driver for the Amlogic Meson SDHC host

The SDHC MMC host controller on Amlogic SoCs provides an eMMC and MMC
card interface with 1/4/8-bit bus width.
It supports eMMC s

mmc: host: meson-mx-sdhc: new driver for the Amlogic Meson SDHC host

The SDHC MMC host controller on Amlogic SoCs provides an eMMC and MMC
card interface with 1/4/8-bit bus width.
It supports eMMC spec 4.4x/4.5x including HS200 (up to 100MHz clock).

The public S805 datasheet [0] contains a short documentation about the
registers. Unfortunately it does not describe how to use the registers
to make the hardware work. Thus this driver is based on reading (and
understanding) the Amlogic 3.10 GPL kernel code.

Some hardware details are not easy to see. Jianxin Pan was kind enough
to answer my questions:
The hardware has built-in busy timeout support. The maximum timeout is
30 seconds. This is only documented in Amlogic's internal
documentation.

The controller only works with very specific clock configurations. The
details are not part of the public datasheet. In my own words the
supported configurations are:
- 399.812kHz: clkin = 850MHz div = 2126 sd_rx_phase = 63
- 1MHz: clkin = 850MHz div = 850 sd_rx_phase = 55
- 5.986MHz: clkin = 850MHz div = 142 sd_rx_phase = 24
- 25MHz: clkin = 850MHz div = 34 sd_rx_phase = 15
- 47.222MHz: clkin = 850MHz div = 18 sd_rx_phase = 11/15 (SDR50/HS)
- 53.125MHz: clkin = 850MHz div = 16 sd_rx_phase = (tuning)
- 70.833MHz: clkin = 850MHz div = 12 sd_rx_phase = (tuning)
- 85MHz: clkin = 850MHz div = 10 sd_rx_phase = (tuning)
- 94.44MHz: clkin = 850MHz div = 9 sd_rx_phase = (tuning)
- 106.25MHz: clkin = 850MHz div = 8 sd_rx_phase = (tuning)
- 127.5MHz: clkin = 1275MHz div = 10 sd_rx_phase = (tuning)
- 141.667MHz: clkin = 850MHz div = 6 sd_rx_phase = (tuning)
- 159.375MHz: clkin = 1275MHz div = 8 sd_rx_phase = (tuning)
- 212.5MHz: clkin = 1275MHz div = 6 sd_rx_phase = (tuning)
- (sd_tx_phase is always 1, 94.44MHz is not listed in the datasheet
but this is what the 3.10 BSP kernel on Odroid-C1 actually uses)

NOTE: CMD23 support is disabled for now because it results in command
timeouts and thus decreases read performance.

Tested-by: Wei Wang <[email protected]>
Tested-by: Xin Yin <[email protected]>
Reviewed-by: Xin Yin <[email protected]>
Tested-by: Anand Moon <[email protected]>
Signed-off-by: Martin Blumenstingl <[email protected]>
Reviewed-by: Jerome Brunet <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Ulf Hansson <[email protected]>

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mmc: Add MMC host software queue support

Now the MMC read/write stack will always wait for previous request is
completed by mmc_blk_rw_wait(), before sending a new request to hardware,
or queue a wo

mmc: Add MMC host software queue support

Now the MMC read/write stack will always wait for previous request is
completed by mmc_blk_rw_wait(), before sending a new request to hardware,
or queue a work to complete request, that will bring context switching
overhead and spend some extra time to poll the card for busy completion
for I/O writes via sending CMD13, especially for high I/O per second
rates, to affect the IO performance.

Thus this patch introduces MMC software queue interface based on the
hardware command queue engine's interfaces, which is similar with the
hardware command queue engine's idea, that can remove the context
switching. Moreover we set the default queue depth as 64 for software
queue, which allows more requests to be prepared, merged and inserted
into IO scheduler to improve performance, but we only allow 2 requests
in flight, that is enough to let the irq handler always trigger the
next request without a context switch, as well as avoiding a long latency.

Moreover the host controller should support HW busy detection for I/O
operations when enabling the host software queue. That means, the host
controller must not complete a data transfer request, until after the
card stops signals busy.

From the fio testing data in cover letter, we can see the software
queue can improve some performance with 4K block size, increasing
about 16% for random read, increasing about 90% for random write,
though no obvious improvement for sequential read and write.

Moreover we can expand the software queue interface to support MMC
packed request or packed command in future.

Reviewed-by: Arnd Bergmann <[email protected]>
Signed-off-by: Baolin Wang <[email protected]>
Signed-off-by: Baolin Wang <[email protected]>
Link: https://lore.kernel.org/r/4409c1586a9b3ed20d57ad2faf6c262fc3ccb6e2.1581478568.git.baolin.wang7@gmail.com
Signed-off-by: Ulf Hansson <[email protected]>

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mmc: Add Actions Semi Owl SoCs SD/MMC driver

Add SD/MMC driver for Actions Semi Owl SoCs. This driver currently
supports standard, high speed, SDR12, SDR25 and SDR50. DDR50 mode is
supported but it

mmc: Add Actions Semi Owl SoCs SD/MMC driver

Add SD/MMC driver for Actions Semi Owl SoCs. This driver currently
supports standard, high speed, SDR12, SDR25 and SDR50. DDR50 mode is
supported but it is untested. There is no SDIO support for now.

Signed-off-by: Manivannan Sadhasivam <[email protected]>
Signed-off-by: Ulf Hansson <[email protected]>

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mmc: sdhci-milbeaut: add Milbeaut SD controller driver

SD Host controller on Milbeaut consists of two controller parts.
One is core controller F_SDH30, this is similar to sdhci-fujitsu
controller.
A

mmc: sdhci-milbeaut: add Milbeaut SD controller driver

SD Host controller on Milbeaut consists of two controller parts.
One is core controller F_SDH30, this is similar to sdhci-fujitsu
controller.
Another is bridge controller.
This bridge controller is not compatible with sdhci-fujitsu controller.
This is special for Milbeaut series. This has some functions.
For example, reset control, clock enable/select for SDR50/25/12, set
property of SD physical pins, retuning control, set capabilityies.

This bridge controller requires special procedures at reset or clock
enablement or change for further tuning of clock.

Signed-off-by: Takao Orito <[email protected]>
Acked-by: Adrian Hunter <[email protected]>
Signed-off-by: Ulf Hansson <[email protected]>

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mmc: host: sdhci-pci: Add Genesys Logic GL975x support

Add support for the GL9750 and GL9755 chipsets.

Enable v4 mode and wait 5ms after set 1.8V signal enable for GL9750/
GL9755. Fix the value of

mmc: host: sdhci-pci: Add Genesys Logic GL975x support

Add support for the GL9750 and GL9755 chipsets.

Enable v4 mode and wait 5ms after set 1.8V signal enable for GL9750/
GL9755. Fix the value of SDHCI_MAX_CURRENT register and use the vendor
tuning flow for GL9750.

Co-developed-by: Michael K Johnson <[email protected]>
Signed-off-by: Michael K Johnson <[email protected]>
Signed-off-by: Ben Chuang <[email protected]>
Acked-by: Adrian Hunter <[email protected]>
Signed-off-by: Ulf Hansson <[email protected]>

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