DDRPhyTune

Tune DDR40 phy registers

DDRPhyTune

Shortest form: ddrpt.

Tune (shmoo) the DDR40 PHY of an external memory interface and optionally save or restore the tuned configuration. Changes PHY configuration and disturbs the memory interface while it runs. These commands are for switch chips with external DDR3 memory behind DDR40 PHYs and “CI” memory-interface ports. A Trident 3 has neither, so the interface argument (ci0, ci0,ci1 …) is not a valid port list there and the command only prints its usage.

Options beyond the built-in help: CtlType=<n>, PhyType=<n>, Stat=<bool>, Plot=<bool>, SaveCfg=<bool> and RestoreCfg=<bool>.

Unvalidated

drivshell> DDRPhyTune ci0

Built-in help

 DDRPhyTune ci<n>
eg.  DDRPhyTune ci
     DDRPhyTune ci0,ci2