On Sat, Jul 14, 2018 at 7:25 PM, Chen-Yu Tsai <[email protected]> wrote: > The Libretech ALL-H3-CC has a high density connector for attaching > an eMMC module. The module form factor and connection is specific > to Libretech, and has provisions for split vmmc/vqmmc (core and I/O) > voltage supplies, but this board does not wire the vqmmc side. The > H2+/H3/H5 SoCs do not support alternate I/O voltages for eMMC either. > Only 3.3V is supported. A specific module that ties vqmmc to vmmc, > with both at 3.3V, must be used. > > Given that a) eMMC is not designed to be hotplugged, b) power is > always provided on the pins, and c) MMC controllers can deal with > missing cards, we can enable this by default. If a module is attached > it will be picked up by the system. > > The device tree change was also submitted to the Linux Kernel and > has already been queued up for 4.19. > > Signed-off-by: Chen-Yu Tsai <[email protected]> > ---
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