[...] > 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 -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html