[PATCH v8 0/2] arm64: dts/defconfig: enable BST C1200 eMMC

[Albert Yang]

This series adds DTS and defconfig support for the eMMC controller on
Black Sesame Technologies C1200 SoC, split from the v5 MMC series [1].

The MMC driver patches (dt-bindings, sdhci bounce buffer, BST SDHCI
driver, and MAINTAINERS update) were merged via mmc-next during the
v7.1 merge window and are now in mainline as of Linux 7.1-rc1 [2].
These remaining DTS and defconfig patches are submitted to the mailing
lists for review (per Krzysztof's feedback on v6 [3])

Both patches now carry Acked-by: Gordon Ge <gordon.ge at bst.ai> (BST
maintainer), collected from the v7 thread [4][5].

Changes since v7 [6]:
- Collected Acked-by: Gordon Ge <gordon.ge at bst.ai> on patch 1/2 [4]
- Collected Acked-by: Gordon Ge <gordon.ge at bst.ai> on patch 2/2 [5]
- Rebased onto v7.1-rc1
- No code changes

Changes since v6:
- Resend with corrected recipients: send to mailing lists for review
  first, not directly to soc@ (BST has a platform maintainer in
  MAINTAINERS), per Krzysztof's feedback [3].

Changes since v5:
- Patch 2 (defconfig): fix CONFIG_MMC_SDHCI_BST ordering to match
  Kconfig position (between CONFIG_MMC_SDHCI_TEGRA and
  CONFIG_MMC_SDHCI_F_SDH30), as pointed out by Krzysztof Kozlowski.
  Confirmed via savedefconfig.

Build/check on v7.1-rc1:
- arch/arm64 defconfig: clean (savedefconfig keeps CONFIG_MMC_SDHCI_BST
  at its Kconfig-ordered position; no diff in the MMC_SDHCI section)
- arch/arm64/boot/dts/bst/bstc1200-cdcu1.0-adas_4c2g.dtb: builds clean
  with W=1 and CHECK_DTBS=y (no new warnings)
- checkpatch.pl --strict: 0 errors, 0 warnings, 0 checks on both patches

[1] https://lore.kernel.org/lkml/20260123095342.272505-1-yangzh0906@thundersoft.com/
[2] https://lore.kernel.org/lkml/CAPDyKFrcXFAiYouOpjDx3NN-xWACU9jAzEfTU2m_-yvQ9SpC_A@mail.gmail.com/
[3] https://lore.kernel.org/lkml/12058c14-67c7-4b43-bbbc-ef0ccb813e61@kernel.org/
[4] https://lore.kernel.org/lkml/20260417.164709-gordon.ge@bst.ai/
[5] https://lore.kernel.org/lkml/20260417.163754-gordon.ge@bst.ai/
[6] https://lore.kernel.org/lkml/20260310091211.4171307-1-yangzh0906@thundersoft.com/

Albert Yang (2):
  arm64: dts: bst: enable eMMC controller in C1200 CDCU1.0 board
  arm64: defconfig: enable BST SDHCI controller

 .../dts/bst/bstc1200-cdcu1.0-adas_4c2g.dts    | 19 +++++++++++++++++++
 arch/arm64/boot/dts/bst/bstc1200.dtsi         | 18 ++++++++++++++++++
 arch/arm64/configs/defconfig                  |  1 +
 3 files changed, 38 insertions(+)


base-commit: 254f49634ee16a731174d2ae34bc50bd5f45e731
-- 
2.43.0