Hello, this is RFC v1 of the attempt to upstream the driver for the "SDHC" MMC controller found on Meson6, Meson8, Meson8b and Meson8m2 SoCs.
The public S805 (Meson8b) datasheet has some documentation starting on page 74: [0] The goal of this RFC v1 is to: - find out how to set up the MMC clock correctly with Jianxin's help (see the description of patch #2 with questions) - get feedback from the MMC maintainers to see which bits need changing [0] https://dn.odroid.com/S805/Datasheet/S805_Datasheet%20V0.8%2020150126.pdf Martin Blumenstingl (2): dt-bindings: mmc: Document the Amlogic Meson SDHC MMC host controller mmc: host: meson-mx-sdhc: new driver for the Amlogic Meson SDHC host .../bindings/mmc/amlogic,meson-mx-sdhc.txt | 34 + drivers/mmc/host/Kconfig | 14 + drivers/mmc/host/Makefile | 1 + drivers/mmc/host/meson-mx-sdhc.c | 1161 +++++++++++++++++ 4 files changed, 1210 insertions(+) create mode 100644 Documentation/devicetree/bindings/mmc/amlogic,meson-mx-sdhc.txt create mode 100644 drivers/mmc/host/meson-mx-sdhc.c -- 2.22.0
