Hi Gregory, On Wed, Jan 28, 2026 at 09:42:35AM +0100, Gregory B. wrote: > Hi, > >There was a recent change of the eMMC standard at JEDEC. The latest version >is now JESD84-B51B. >The CSD_REV has moved to value 9. >The update of the standard is essentially to redefined the manufacturing >date field in order to be able to encode year 2026 up to 2038. >More information can be found in the commits of Linux Kernel and mmc-utils >reference below. > >A couple of patches are now being released in Kernel: > > - > > https://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc.git/commit/?h=next&id=bf60037e32e963f8053c3372c438ba272b7c30c0 > - > > https://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc.git/commit/?h=next&id=b40ebb75b7461c69ee4da1e49cc2fed309a96349 > > >mmc-utils is also being updated: >https://git.kernel.org/pub/scm/utils/mmc/mmc-utils.git > >I was wondering whether a similar update on the uboot code might be needed, >and I haven't seen any patch or ongoing discussion on the uboot side.
Thanks for the heads up, I will give a look. If you already started to work on this, patches are welcomed. Thanks Peng > >Best regards, >Gregory Baudet
