[U-Boot] ARM: omap: Looking to dynamically setup ECC and nand settings during boot

We have a product based on the 335x that has several different models where the only difference is the nand part. We would like to have a unified u-boot that can dynamically configure the nand's ECC, page size, block size, etc using a spi eeprom containing a model number. Both the UBL and u-boot image are stored in nand. We already do this in the kernel. Currently in the UBL all the nand information is setup in #defines during compile time which makes it hard to change at runtime. I am unsure how to go about changing this. Has anyone tried doing this dynamic setup?

We are currently based off of the 2013.10 tag but will move forward if needed.