On 20 August 2014 16:10, David Lanzend?rfer [off-list ref] wrote:

Hi

quoted

Declare ERASE capability so we can use filesystems with the discard
option and the fstrim tool.

I totally agree with you that information about such capabilities should be
exposed but maybe it would be wiser to use DT instead of hardcoding it?

Nope, this is pure software support. No HW config.

What we should do future wise, is to remove the MMC_CAP_ERASE
entirely. Due to current existing bugs, mainly in mmc core layer
regarding erase, we can't do it yet.

I mean a WiFi device won't support erase functionality...

That's already covered by the mmc core layer. No worries.

Kind regards
Uffe