Enabling BIST for SATA on QorIQ P2041?
Latest reply on Apr 11, 2014 by Wlodek_D.
I'm attempting to verify the signal integrity of SATA lines on a board with a P2041. To do this, I intend to activate the BIST on the SATA PHY and take a scope capture of the eye diagram of the BIST signal.
1) Bring the Host controller online by setting the HControl[HC_ON].
2) Force the PHY ready by setting PhyCtrlCfg1[FPRFTI] to b10.
3) Trigger the device to send BIST-L (Far End Retimed Loopback) by setting PhyCtrlCfg1[LBP_EN] to b001.
4) Poll HSTATUS[BE] for 0 ('0' indicates that Host controller is successfully in BIST mode).
I can successfully do steps 1-3, but step 4 never returns a 0. Would anyone be able to help me out?
Thank you for your post, however please consider moving it to the right community place (e.g. QorIQ Processing Platforms) to get it visible for active members.