$ git clone https://email@example.com/alphascale/u-boot.git $ cd u-boot/ $ export ARCH=arm $ export CROSS_COMPILE=arm-eabi- $ make menuconfig
新版的 U-Boot 与旧版对比，结构上发生较大改变，配置文件除了在菜单中配置之外，大部分配置位于：
Welcome to your wiki! This is the default page we've installed for your convenience. Go ahead and edit it.
This wiki uses the Markdown syntax.
The wiki itself is actually a git repository, which means you can clone it, edit it locally/offline, add images or any other file type, and push it back to us. It will be live immediately.
Go ahead and try:
$ git clone https://firstname.lastname@example.org/alphascale/u-boot.git/wiki
Wiki pages are normal files, with the .md extension. You can edit them locally, as well as creating new ones.
You can also highlight snippets of text (we use the excellent Pygments library).
Here's an example of some Python code:
def wiki_rocks(text): formatter = lambda t: "funky"+t return formatter(text)
You can check out the source of this page to see how that's done, and make sure to bookmark the vast library of Pygment lexers, we accept the 'short name' or the 'mimetype' of anything in there.