[PATCH v2 0/8] spacemit mmc driver

[Eric Chung]

This series adds MMC support for the SpacemiT K1: an SDHCI platform
driver, the SD card device-tree overlay, defconfig options, and SPL
boot-device selection from the SoC strap/config registers. The SDHCI
driver is usable in both SPL and U-Boot proper.

A flashing guide (doc/board/spacemit/k1-flash.rst) describes how to
write images to eMMC.

This series sits on top of three series still under review, and must be
applied after them, in this order:

  1. K1 clock/reset/dts migration [1]    (8 patches)
  2. K1 SPL bring-up v4 [2]              (14 patches)
  3. K1 pinctrl/GPIO and SPI NOR v2 [3]   (9 patches)
  Then this series                        (8 patches)

For each series:

  b4 am <cover-msgid>
  git am ./*.mbx

Link: https://lore.kernel.org/u-boot/20260526-b4-k1-clk-reset-upstream-dts-v2-0-af815e362b0c@riscstar.com/ [1]
Link: https://lore.kernel.org/u-boot/20260519-b4-k1-spl-bring-up-v4-0-3915a2a904c1@riscstar.com/ [2]
Link: https://lore.kernel.org/u-boot/20260520-b4-k1-spl-pinctrl-spinor-v2-0-8d25db98ac8e@riscstar.com/ [3]

---
Changes in v2:
- EDITME: describe what is new in this series revision.
- EDITME: use bulletpoints and terse descriptions.
- Link to v1: https://patch.msgid.link/20260629-m4-v1-0-a11f8d496e62@riscstar.com

Changes in v2:
- cmd: drop patches on eminfo & tlv_eeprom.
- configs: Enable ADMA and SYSCON support.
- dts: Use vmmc-supply as vqmmc-supply on the SD card node.
- mmc: k1: Enable ADMA mode support, use CMD23 for multi-block
  read/write, correct pinctrl state from "fast" to "uhs".
- mmc: sdhci: Add new quirk patch to enable CMD23 for multi-block
  transfers.
- pinctrl: k1: Add new IO power domain configuration support for
  dual-voltage GPIO banks.
- spacemit: k1: Use FIELD_GET() to parse boot strap mode.
- Link to v1: https://lore.kernel.org/u-boot/20260521-k1-spl-mmc-sdcard-v1-0-1bd14b8c4f9f@riscstar.com/

To: u-boot-spacemit at groups.io
To: u-boot at lists.denx.de
Cc: Huan Zhou <pericycle.cc at gmail.com>
Cc: Guodong Xu <guodong.xu at riscstar.com>
Cc: Tom Rini <trini at konsulko.com>
Cc: Raymond Mao <raymond.mao at riscstar.com>
Cc: Peng Fan <peng.fan at nxp.com>
Cc: Jaehoon Chung <jh80.chung at samsung.com>
Cc: Bhimeswararao Matsa <bhimeswararao.matsa at gmail.com>
Cc: Tanmay Kathpalia <tanmay.kathpalia at altera.com>
Cc: Kaustabh Chakraborty <kauschluss at disroot.org>
Cc: Han Xu <han.xu at nxp.com>
Cc: Yanir Levin <yanir.levin at tandemg.com>
Cc: Christoph Stoidner <c.stoidner at phytec.de>
Cc: Balsundar Ponnusamy <balsundar.ponnusamy at altera.com>
Cc: Daniel Palmer <daniel at thingy.jp>
Cc: Anshul Dalal <anshuld at ti.com>
Cc: Bastien Curutchet <bastien.curutchet at bootlin.com>
Cc: Angelo Dureghello <angelo at kernel-space.org>
Cc: Johan Jonker <jbx6244 at gmail.com>
Cc: Rick Chen <rick at andestech.com>
Cc: Leo <ycliang at andestech.com>
Cc: Sam Protsenko <semen.protsenko at linaro.org>
Signed-off-by: Eric Chung <eric.chung at riscstar.com>

---
Eric Chung (8):
      pinctrl: k1: add IO power domain configuration support
      mmc: sdhci: add quirk to enable CMD23 for multi-block transfers
      mmc: k1: add sdhci platform driver
      dts: k1: add SD card support in u-boot overlay
      configs: k1: enable SD and eMMC support
      doc: spacemit: flash on K1 SoC based boards
      config: k1: enable ENV support for eMMC
      spacemit: k1: load product name from environment variable

 arch/riscv/dts/k1-bananapi-f3-u-boot.dtsi |  87 +++-
 arch/riscv/dts/k1-musepi-pro-u-boot.dtsi  |  82 +++-
 board/spacemit/k1/MAINTAINERS             |   3 +-
 board/spacemit/k1/spl.c                   |  50 +--
 configs/spacemit_k1_defconfig             |  26 +-
 doc/board/spacemit/index.rst              |   1 +
 doc/board/spacemit/k1-flash.rst           | 157 +++++++
 drivers/mmc/Kconfig                       |   7 +
 drivers/mmc/Makefile                      |   1 +
 drivers/mmc/mmc.c                         |  22 +-
 drivers/mmc/sdhci.c                       |   3 +
 drivers/mmc/spacemit_sdhci.c              | 681 ++++++++++++++++++++++++++++++
 drivers/pinctrl/spacemit/pinctrl-k1.c     |  84 +++-
 include/mmc.h                             |   5 +-
 include/sdhci.h                           |   1 +
 15 files changed, 1157 insertions(+), 53 deletions(-)
---
base-commit: e7a6b33b153be98fcca16729e189f90c2d91a98c
change-id: 20260629-m4-98e01659fefb

Best regards,
--  
Eric Chung <eric.chung at riscstar.com>