On 8/01/20 1:30 pm, Faiz Abbas wrote: > Hi, > > On 30/12/19 2:53 pm, Faiz Abbas wrote: >> In some Arasan SDHCI controllers, after tuning, the tuning pattern data >> is leftover in the sdhci buffer. This leads to issues with future data >> commands, especially when command queuing is enabled. The following >> patches help fix this issue by resetting data lines after tuning is >> finished. The first two patches have been tested with TI's am65x and >> j721e SoCs using the sdhci_am654 driver. >> >> I have a strong suspicion that this is the same issue with >> the sdhci-of-arasan driver where they are forced to dump data from the >> buffer before enabling command queuing. I need help from someone with a >> compatible platform to test this. >> > > I had some discussions with our hardware team and they say we should be > asserting both SRC and SRD reset after tuning to start from a clean > state. Will update the patches to do that in v2. Can you use the ->execute_tuning() for that instead of a quirk?
