[PATCH v4 0/4] StarFive's SDIO/eMMC driver support

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This patchset adds initial rudimentary support for the StarFive
designware mobile storage host controller driver. And this driver will
be used in StarFive's VisionFive 2 board. The main purpose of adding
this driver is to accommodate the ultra-high speed mode of eMMC.

The last patch should be applied after the patchset [1]:
[1] https://lore.kernel.org/all/20221220011247.35560-1-hal.feng@xxxxxxxxxxxxxxxx/

Changes v3->v4:
- Added documentation to describe StarFive System Controller Registers.
- Added aon_syscon and stg_syscon node.
- Fixed some checkpatch errors/warnings.

Changes v2->v3:
- Wraped commit message according to Linux coding style.
- Rephrased the description of the patches.
- Changed the description of syscon regsiter.
- Dropped redundant properties.

Changes v1->v2:
- Renamed the dt-binding 'starfive,jh7110-sdio.yaml' to 'starfive,jh7110-mmc.yaml'.
- Changed the type of 'starfive,syscon' and modify its description.
- Deleted unused head files like '#include <linux/gpio.h>'.
- Added comment for the 'rise_point' and 'fall_point'.
- Changed the API 'num_caps' to 'common_caps'.
- Changed the node name 'sys_syscon' to 'syscon'.
- Changed the node name 'sdio' to 'mmc'.

The patch series is based on v6.1.

William Qiu (4):
  dt-bindings: mmc: Add StarFive MMC module
  mmc: starfive: Add sdio/emmc driver support
  riscv: dts: starfive: Add mmc node
  dt-bindings: syscon: Add StarFive syscon doc

 .../bindings/mmc/starfive,jh7110-mmc.yaml     |  77 ++++++++
 .../bindings/soc/starfive/jh7110-syscon.yaml  |  51 +++++
 MAINTAINERS                                   |  11 ++
 .../jh7110-starfive-visionfive-2.dtsi         |  23 +++
 arch/riscv/boot/dts/starfive/jh7110.dtsi      |  47 +++++
 drivers/mmc/host/Kconfig                      |  10 +
 drivers/mmc/host/Makefile                     |   1 +
 drivers/mmc/host/dw_mmc-starfive.c            | 186 ++++++++++++++++++
 8 files changed, 406 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/mmc/starfive,jh7110-mmc.yaml
 create mode 100644 Documentation/devicetree/bindings/soc/starfive/jh7110-syscon.yaml
 create mode 100644 drivers/mmc/host/dw_mmc-starfive.c


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