[...] > Hi Ulf and Shawn, > > Aisheng and I debug this issue these days, and we find the root cause. There > are two things > to describe. > > 1) voltage switch issue. The properity "no-1-8-v" do not work for > MMC_TIMING_MMC_DDR52. > This is another bug, we need to fix, but has no relation with the current bug.
I am working on a patch which invents MMC_CAP_3_3V_DDR and which has a corresponding DT binding "mmc-ddr-3_3v". Give me a day or so, then I will post it. Likely it should help to resolve your issue, don't you think? [...] Kind regards Uffe
