Hi,
Was wanting to configure the QSPI to use only 2 data lines. Per the LS1046ARM spec, Chp 27, this is possible. Looking at section 3.4.7, the IFC word can be modified to reconfigure the pins in the RCW. Need some help understanding the encoding of this configuration and how to modify it in the RCW. Thanks.
Solved! Go to Solution.
I guess it's official. No RCW for QSPI to modify data lines so they stay in single mode until the kernel takes over.
Have a great day,
Pavel Chubakov
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Thanks Pavel,
Per the spec, QSPI comes up in single mode, however I don't see anything in the PBL taking it out of this mode. Further, in UBOOT, it appears that single mode is preserved. Would you be able to confirm this?
I guess it's official. No RCW for QSPI to modify data lines so they stay in single mode until the kernel takes over.