----- Ursprüngliche Mail ----- > Von: "Christian Loehle" <CLoehle@xxxxxxxxxxxxxx> >> Can it be that rcar-gen3-sdhi changes some timings after switching? >> Either in software or on hardware. > > Neither should be aware of the notion of a boot or user area partition. > Anything below mmc/core isn't, if we exclude the boot operation which is read > only, so not applicable to your problem. > So also a > while true; do dd if=/dev/zero of=/dev/mmcblkXboot0 bs=128K status=progress; > done > gives you like ~50KB/s consistently? Exactly. On the other hand, the very same command on /dev/mmcblk1p13 gives me always between 17 and 20 MB/s. Thanks, //richard
