Wolfgang Grandegger wrote: > Hello, > > is there a way to distinguish the CPU revision (Rev.A vs. Rev.B) of the > MPC5200, preferably at run time? Or should this be defined in the FDT? > I ask, because some settings depend on the CPU revision due to hardware > bugs, like the clock source used for MSCAN.
I found the information here: $ cat Documentation/powerpc/mpc52xx-device-tree-bindings.txt ... The 5200B is almost the same as the 5200, but not quite. It fixes silicon bugs and it adds a small number of enhancements. Most of the devices either provide exactly the same interface as on the 5200. A few devices have extra functions but still have a backwards compatible mode. To express this infomation as completely as possible, 5200B device trees should have two items in the compatible list; "mpc5200b-<device>\0mpc5200-<device>". It is *strongly* recommended that 5200B device trees follow this convention (instead of only listing the base mpc5200 item). ... Sorry for the noise. Wolfgang. _______________________________________________ Linuxppc-embedded mailing list [email protected] https://ozlabs.org/mailman/listinfo/linuxppc-embedded
