eMMC and MMC plus card supports

eMMC and MMC plus card supports

[Sandeep K]

Hi all,

Can anybody please let me know, does the current linux
tree supports MMC plus and eMMC cards.

Thanks,
Sandeep K




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Re: eMMC and MMC plus card supports

[Philip Langdale]

Sandeep K wrote:
> Hi all,
> 
> Can anybody please let me know, does the current linux
> tree supports MMC plus and eMMC cards.

It certainly supports MMCplus. My understanding is that eMMC
is just a form-factor and is not visibly different to the host
controller, so it should just work. I know that the nokia n810
has an internal eMMC and it, obviously, works. They had some
odd issues with the Samsung part they're using and SET_BLOCK_COUNT
but I have no idea if that's an eMMC thing or specific to the part
they're using.

You also asked about "28bit lba" support in another email. I assume
you are asking about support for block addressed SDHC and MMCplus-HC cards.
The kernel supports both (although good luck trying to get a hold of an MMC
one).

Hope that helps,

--phil