It turns out uSD card detection on the Jetson AGX Xavier is not working and I/Os are limited to 3.3 V. SDIO is supported but not enabled. Also, the on-board eMMC module is using HS200 only. Changes in v2: - fix board name in commit messages - rebase on for-next Kind regards, Tamas Tamás Szűcs (4): arm64: tegra: Enable signal voltage switching on Tegra194 SDMMC1 and SDMMC3 arm64: tegra: Fix CD on Jetson AGX Xavier SDMMC1 arm64: tegra: Configure SDIO cards on Jetson AGX Xavier SDMMC1 arm64: tegra: Enable HS400 on Tegra194 SDMMC4 .../arm64/boot/dts/nvidia/tegra194-p2888.dtsi | 4 +- arch/arm64/boot/dts/nvidia/tegra194.dtsi | 46 +++++++++++++++++++ 2 files changed, 49 insertions(+), 1 deletion(-) -- 2.20.1