We are migrating ARMv5 Marvell Kirkwood platforms over to mainline U-Boot provided by Arch Linux ARM. This will be maintained going forward along with the other U-Boot installations for other platforms. It is also the default U-Boot used on new installations for the supported platforms.
This new version makes a significant change away from the legacy U-Boot environment found in past versions used. The new environment lines up with the default environments provided for ARMv7 platforms, which includes many enhancements.
Full details on what has changed are available on the GitHub wiki page for the U-Boot repository. It is highly encouraged to read -- and most importantly, comprehend -- the information there before upgrading an existing installation.
Currently Supported Platforms
Pogoplug V2 E02 (uboot-pogo_e02)
Seagate Dockstar (uboot-dockstar)
Seagate GoFlex Home (uboot-goflexhome)
Seagate GoFlex Net (uboot-goflexnet)
Current installations can be updated by installing the package in parenthesis above for the respective platform. After installing the package, it will ask you if you want to flash the new bootloader. Type 'y' and hit enter, and your system will be flashed.
Again, please read the GitHub wiki page first if you have questions. They are probably already answered there.