> > In the SD spec v4.x the SD function extension registers were introduced, > together with a new set of commands (CMD48/49 and CMD58/59) to read > and write > to them. > > Moreover, in v4.x a new standard function for power management features > were > added, while in v6.x a new standard function for performance > enhancements > features were added. > > This series implement the basics to add support for these new features (and > includes some additional preparations in patch 1->7), by adding support for > reading and parsing these new SD registers. In the final patch we add > support > for the SD poweroff notification feature, which also add a function to write > to > these registers. > > Note that, there are no HW updates need for the host to support > reading/parsing > of the these new SD registers. This has been tested with a 64GB Sandisk > Extreme > PRO UHS-I A2 card. > > Tests and reviews are of course greatly appreciated! Echoing an internal discussion about this series: "... That is very good that there will be a support of the extension registers of SD spec . It may allow existing and future features to be very easily supported by hosts (like existing power off control and future TCG/RPMB related spec which is currently under definition and is going to use those registers as well..). ..." Therefore for entire series: Acked-by: Avri Altman <avri.altman@xxxxxxx>