[...] >> >> >> >> I am not so sure we should finalize the production phase while >> >> initializing the eMMC card like this. >> >> >> >> Certainly we should check the PSA state, but I think we should return >> >> an error if we think the device hasn’t completed production. It >> >> should be the responsibility for the "programming tools" to finalize the >> production, right!? >> > >> > According to eMMC spec, the switch to NORMAL should be done after device >> soldering to final host (not programmer). >> > Please refer to "Figure 32 — Recommended Soldering procedure" in >> eMMC5.0 specification document. >> > Also, since we are dealing with only "field" host here, we are not >> touching/switching any other modes of PSA, but only Normal (field). >> > This code should run only once - in the beginning of device life cycle. >> >> I get your point, but I am not so sure. >> >> To me, I wouldn't trust that the platform binaries has been successfully >> programmed to the device, unless the programmer tool takes care of switching >> the device to "normal". >> > > Thanks Ulf! > Also, please note - PSA PRE_SOLDERING_POST_WRITES mode intent to save device > pre-loaded content during the soldering process. > Flash data can be corrupted due to soldering procedure high temperature. So switching > to Normal cannot be done by external programmer. So, if flash data will be corrupted due to for example high temperatures during soldering, how will that be detected when using the "manual mode"? If that's the job for the platform software I fail to understand why the PRE_SOLDERING_POST_WRITES state needs to exists at all!? 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
