Tanix TX6 box has a 32 GB eMMC module. With changes in this series, I get following figures with hdparm -tT: /dev/mmcblk2: Timing cached reads: 1638 MB in 2.00 seconds = 818.44 MB/sec Timing buffered disk reads: 376 MB in 3.01 seconds = 124.74 MB/sec First patch only sets proper power supplies to GPIO banks and second adds eMMC support. Please take a look. Best regards, Jernej Skrabec Jernej Skrabec (2): arm64: dts: allwinner: h6: tanix-tx6: Add PIO power supplies arm64: dts: allwinner: h6: tanix-tx6: enable emmc .../dts/allwinner/sun50i-h6-tanix-tx6.dts | 23 +++++++++++++++++++ 1 file changed, 23 insertions(+) -- 2.32.0