Flameman/ebony

uboot has an issue, i am working around the "kanojio" bootloader, so ... the support it will come

issues:
 * ram0 is working, ram1 is not working and (if inserted) it causes uboot-1.3 to freeze
 * tftpboot has a buffer overflow, that limits the max amount of download to 2Mb
 * ramrootfs is not tested yet due to the previous tftpboot issue (-> kanojio will fix it)