1. 446e56a x86: link: Add a config for 64-bit U-Boot by Simon Glass · Mon Jan 16 07:04:27 2017 -0700
  2. a0b0961 x86: Add support for the samus chromebook by Simon Glass · Wed Mar 16 07:44:43 2016 -0600
  3. f069960 arch: Make board selection choices optional by Joe Hershberger · Tue May 12 14:46:23 2015 -0500
  4. 03b341b x86: Kconfig: Divide the target selection to vendor/model by Bin Meng · Mon Apr 27 23:22:24 2015 +0800