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    Subject[PATCH V7 0/9] mmc: add support for sdhci 4.0
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    From the SD host controller version 4.0 on, SDHCI implementation either
    is version 3 compatible or version 4 mode. This patch-set covers those
    changes which are common for SDHCI 4.0 version, regardless of whether
    they are used with SD or eMMC storage devices.

    This patchset also added a new sdhci driver for Spreadtrum's controller
    which supports v4.0 mode.

    This patchset has been tested on Spreadtrum's mobile phone, emmc can be
    initialized, mounted, read and written, with these changes for common
    sdhci framework and sdhci-sprd driver.

    Changes from V6:
    - Rebased to the next branch of Ulf' mmc tree;
    - Replaced SDHCI_QUIRK2_BROKEN_32BIT_BLK_CNT with SDHCI_QUIRK2_USE_32BIT_BLK_CNT,
    also added a comment to its definition;
    - Added a 'flags' in sprd_host for recovering host->flags in mmc_host_ops.request.

    Previous patch series:
    v6: http://lkml.org/lkml/2018/8/24/205
    v5: https://lkml.org/lkml/2018/8/16/122
    v4: https://lkml.org/lkml/2018/7/23/269
    v3: https://lkml.org/lkml/2018/7/8/239
    v2: https://lkml.org/lkml/2018/6/14/936
    v1: https://lkml.org/lkml/2018/6/8/108


    Chunyan Zhang (9):
    mmc: sdhci: Add version V4 definition
    mmc: sdhci: Add sd host v4 mode
    mmc: sdhci: Change SDMA address register for v4 mode
    mmc: sdhci: Add ADMA2 64-bit addressing support for V4 mode
    mmc: sdhci: Add 32-bit block count support for v4 mode
    mmc: sdhci: Add Auto CMD Auto Select support
    mmc: sdhci: SDMA may use Auto-CMD23 in v4 mode
    mmc: sdhci-sprd: Add Spreadtrum's initial host controller
    dt-bindings: sdhci-sprd: Add bindings for the sdhci-sprd controller

    .../devicetree/bindings/mmc/sdhci-sprd.txt | 41 ++
    drivers/mmc/host/Kconfig | 13 +
    drivers/mmc/host/Makefile | 1 +
    drivers/mmc/host/sdhci-sprd.c | 498 +++++++++++++++++++++
    drivers/mmc/host/sdhci.c | 224 +++++++--
    drivers/mmc/host/sdhci.h | 28 +-
    6 files changed, 755 insertions(+), 50 deletions(-)
    create mode 100644 Documentation/devicetree/bindings/mmc/sdhci-sprd.txt
    create mode 100644 drivers/mmc/host/sdhci-sprd.c

    --
    2.7.4

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