[U-Boot] Which version of u-boot contains support for twrmpc5125

The latest version does not appear to contain support for the the twrmpc5125 processor because the following command issued in the u-boot installation directory yields nothing. $grep 5125 Makefile. My question is, how do you know which version of u-boot contains the most current source code

[U-Boot] Configure u-boot with netconsole

I'm having trouble getting netconsole to work u-boot after following to the letter instructions found in README.NetConsole. Here are the steps taken. 1) in the file include/configs/ads5125.h, I use # define CONFIG_NETCONSOLE 1 2) I then built u-boot and downloaded the image on ram memory