Linux:
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
U-Boat:
Go to: //git.denx.de/u-boot.git
Freescale PPC SDK:
http://git.freescale.com/git/cgit.cgi/ppc/sdk/linux.git/
http://git.freescale.com/git/cgit.cgi/ppc/sdk/u-boot.git/
http://git.freescale.com/git/cgit.cgi/ppc/sdk/u-boot.git/
Reproduced in: https: //www.cnblogs.com/EmbeddedLiving/p/3450400.html