In case of P1014 QorIQ Integrated Processors
Link- https://rocelec.widen.net/view/pdf/vr2ddso1wa/FSCLS11835-1.pdf?t.download=true&u=5oefqw
Please refer to Page 98, Table 86 last column in above link. .Are the die revs backward compatible? Your help is highly appreciated.
E.g. Is P1014NXN5HHB backward compatible to P1014NXN5HHA?
The errata document for the p1010 which covers the p1014 as well. If you have this document, you can go through table 3 to identify which errata applies for Rev 1.0 "A" and Rev 2.01 "B" silicon of the P1014. Depending on the your use case and features that are enabled on the P1014, it may or may not be backward compatible.