uboot/board/ads5121/README
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Prefs
   1To configure for the current (Rev 3.x) ADS5121
   2        make ads5121_config
   3This will automatically include PCI, the Real Time CLock, add backup flash
   4ability and set the correct frequency and memory configuration.
   5
   6To configure for the older Rev 2 ADS5121 type (this will not have PCI)
   7        make ads5121_rev2_config
   8