tree 228a0f55c1d6720b59e7b92ba889a36ab2b930bf
parent 669881b1e9e8d096da25626c668d28b4ee412c50
author Simon Glass <sjg@chromium.org> 1468740226 -0600
committer Bin Meng <bmeng.cn@gmail.com> 1471319049 +0800

x86: Mention running U-Boot in 64-bit mode in the README

This feature is not supported. Document this, and add some details on how it
might be implemented.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>