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 (10 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-af815e362...@riscstar.com/ [1] Link: https://lore.kernel.org/u-boot/[email protected]/T/#m2aba875a2696a7bb9b704618d22ae2fd7f7f5acc [2] Link: https://lore.kernel.org/u-boot/[email protected]/ [3] --- 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/[email protected] 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/[email protected]/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/[email protected]/ To: [email protected] To: [email protected] Cc: Huan Zhou <[email protected]> Cc: Guodong Xu <[email protected]> Cc: Tom Rini <[email protected]> Cc: Tim Ouyang <[email protected]> Cc: Leo Liang <[email protected]> Cc: Raymond Mao <[email protected]> Cc: Peng Fan <[email protected]> Cc: Jaehoon Chung <[email protected]> Cc: Bhimeswararao Matsa <[email protected]> Cc: Tanmay Kathpalia <[email protected]> Cc: Kaustabh Chakraborty <[email protected]> Cc: Han Xu <[email protected]> Cc: Yanir Levin <[email protected]> Cc: Christoph Stoidner <[email protected]> Cc: Balsundar Ponnusamy <[email protected]> Cc: Daniel Palmer <[email protected]> Cc: Anshul Dalal <[email protected]> Cc: Bastien Curutchet <[email protected]> Cc: Angelo Dureghello <[email protected]> Cc: Johan Jonker <[email protected]> Cc: Sam Protsenko <[email protected]> Signed-off-by: Eric Chung <[email protected]> --- Eric Chung (10): spacemit: k1: select boot device via config registers pinctrl: k1: add IO power domain configuration support mmc: 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 MAINTAINER: update Spacemit K1 entry 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 | 5 +- board/spacemit/k1/spl.c | 120 ++++-- configs/spacemit_k1_defconfig | 26 +- doc/board/spacemit/index.rst | 1 + doc/board/spacemit/k1-mmc.rst | 320 ++++++++++++++ drivers/mmc/Kconfig | 7 + drivers/mmc/Makefile | 1 + drivers/mmc/mmc.c | 16 +- drivers/mmc/mmc_write.c | 19 +- drivers/mmc/spacemit_sdhci.c | 685 ++++++++++++++++++++++++++++++ drivers/pinctrl/spacemit/Kconfig | 2 +- drivers/pinctrl/spacemit/pinctrl-k1.c | 83 +++- include/mmc.h | 3 + 15 files changed, 1401 insertions(+), 56 deletions(-) --- base-commit: e7a6b33b153be98fcca16729e189f90c2d91a98c change-id: 20260629-m4-98e01659fefb Best regards, -- Eric Chung <[email protected]>
