[PATCH v8 00/11] spacemit mmc driver

[Eric Chung <eric.chung@riscstar.com>]

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-mmc.rst) describes how to
write images to eMMC.

---
Changes in v8:
- doc: Remove SD part.
- Link to v7: https://patch.msgid.link/20260729-m4-v7-0-2cb04b4fe389@riscstar.com

Changes in v7:
- spl: Avoid to load product name from ENV.
- spl: Fix DTB matching.
- pinctrl: Simply clrsetbits_le32() on pull-up/pull-down configuration.
- pinctrl: Remove the dependency on SYSCON.
- Link to v6: https://patch.msgid.link/20260727-m4-v6-0-2f58566d48ca@riscstar.com

Changes in v6:
- pinctrl: Fix drive strength configuration.
- pinctrl: Fix pull-up/pull-down configuration.
- pinctrl: Use dev_read_phandle_with_args() to fetch "spacemit,syscon" instead.
- spacemit: rebase on latest upstream branch.
- Link to v5: https://patch.msgid.link/20260722-m4-v5-0-c41a951e5157@riscstar.com

Changes in v5:
- mmc: Split CMD23 support out.
- mmc: Use read_poll_timeout().
- mmc: Set pinctrl state based on selected timing mode.
- mmc: Remove the condition based on quirks.
- pinctrl: Fix power source argument.
- dts: Add missing power source on mmc pins.
- Link to v4: https://patch.msgid.link/20260707-m4-v4-0-dbd01185f911@riscstar.com

Changes in v4:
- mmc: Add CMD23 for write.
- mmc: Fix CMD23 only for CMD18.
- mmc: Update bulk release operations on reset and clocks for spacemit
  platform driver.
- MAINTAINER: update the maintainer of Spacemit K1.
- Link to v3: https://patch.msgid.link/20260705-m4-v3-0-5a9bc7f25fc5@riscstar.com

Changes in v3:
- pinctrl: Fix "fast" by "uhs".
- pinctrl: Add syscon dependency.
- mmc: Fix quick by capability.
- doc: Add SD boot support.
- Link to v2: https://lore.kernel.org/u-boot/20260630-m1-v1-0-83f13347b3ba@riscstar.com/T/#m2aba875a2696a7bb9b704618d22ae2fd7f7f5acc

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@groups.io
To: u-boot@lists.denx.de
To: u-boot@lists.u-boot-project.org
Cc: Huan Zhou <pericycle.cc@gmail.com>
Cc: Tom Rini <trini@konsulko.com>
Cc: Tim Ouyang <tim609@andestech.com>
Cc: Leo Liang <leo.liang@sifive.com>
Cc: Raymond Mao <raymond.mao@riscstar.com>
Cc: Peng Fan <peng.fan@nxp.com>
Cc: Jaehoon Chung <jh80.chung@samsung.com>
Cc: Bhimeswararao Matsa <bhimeswararao.matsa@gmail.com>
Cc: Tanmay Kathpalia <tanmay.kathpalia@altera.com>
Cc: Kaustabh Chakraborty <kauschluss@disroot.org>
Cc: Han Xu <han.xu@nxp.com>
Cc: Yanir Levin <yanir.levin@tandemg.com>
Cc: Christoph Stoidner <c.stoidner@phytec.de>
Cc: Balsundar Ponnusamy <balsundar.ponnusamy@altera.com>
Cc: Daniel Palmer <daniel@thingy.jp>
Cc: Anshul Dalal <anshuld@ti.com>
Cc: Bastien Curutchet <bastien.curutchet@bootlin.com>
Cc: Angelo Dureghello <angelo@kernel-space.org>
Cc: Johan Jonker <jbx6244@gmail.com>
Cc: Sam Protsenko <semen.protsenko@linaro.org>
Cc: Guodong Xu <guodong@riscstar.com>
Cc: Yao Zi <me@ziyao.cc>
Cc: Rick Chen <rick@andestech.com>
Cc: Leo <ycliang@andestech.com>
Signed-off-by: Eric Chung <eric.chung@riscstar.com>

---
Eric Chung (11):
      spacemit: k1: select boot device via config registers
      pinctrl: k1: fix drive strength configuration
      pinctrl: k1: fix pull-up/pull-down configuration
      pinctrl: k1: add IO power domain configuration support
      mmc: k1: add sdhci platform driver
      dts: k1: add SD card support in u-boot overlay
      configs: k1: enable SD and eMMC support
      MAINTAINER: update Spacemit K1 entry
      doc: spacemit: flash on K1 SoC based boards
      config: k1: enable ENV support for eMMC
      spacemit: k1: fix product name detection and DTB matching in SPL

 arch/riscv/dts/k1-bananapi-f3-u-boot.dtsi |  91 +++-
 arch/riscv/dts/k1-musepi-pro-u-boot.dtsi  |  86 +++-
 board/spacemit/k1/MAINTAINERS             |   5 +-
 board/spacemit/k1/spl.c                   | 121 +++++-
 configs/spacemit_k1_defconfig             |  27 +-
 doc/board/spacemit/index.rst              |   1 +
 doc/board/spacemit/k1-mmc.rst             | 167 ++++++++
 drivers/mmc/Kconfig                       |   7 +
 drivers/mmc/Makefile                      |   1 +
 drivers/mmc/spacemit_sdhci.c              | 673 ++++++++++++++++++++++++++++++
 drivers/pinctrl/spacemit/pinctrl-k1.c     | 114 ++++-
 11 files changed, 1256 insertions(+), 37 deletions(-)
---
base-commit: 616c3d79f01cf9204e38738857c4647a730dcb3b
change-id: 20260629-m4-98e01659fefb

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