On August 27, 2025 thus sayeth Jared McArthur: > Currently, U-Boot doesn't set the bRefClkFreq attribute before > changing power mode of the UFS device. If there is a difference > between the UFS device and the host controller, all commands will fail > after switching to high speed. > > This behavior is rarely observed, because Linux sets the bRefClkFreq > attribute on probe, and the bRefClkFreq is a persistent attribute. In > other words, once Linux has booted once, the issue will never be seen. > > If trying to provision and boot from an unprovisioned UFS device, > U-Boot will fail. Fix this by adding support for setting the > bRefClkFreq attribute. > > Jared McArthur (2): > ufs: Add support for sending UFS attribute requests > ufs: Add bRefClkFreq attribute setting > > drivers/ufs/ufs.c | 184 ++++++++++++++++++++++++++++++++++++++++++++++ > drivers/ufs/ufs.h | 10 +++ > 2 files changed, 194 insertions(+)
Reviewed-by: Bryan Brattlof <b...@ti.com> ~Bryan
