[U-Boot] [PATCH v3 23/62] x86: Add 64-bit start-up code

[Bin Meng]

On Mon, Jan 16, 2017 at 10:03 PM, Simon Glass <sjg at chromium.org> wrote:
> Add code to start up U-Boot in 64-bit mode. It is fairly simple since we are
> running from RAM and SPL has done the low-level init.
>
> Signed-off-by: Simon Glass <sjg at chromium.org>
> ---
>
> Changes in v3:
> - Drop unused headers
> - Drop unused board_debug_uart_init function
> - Use call instead of callq
>
> Changes in v2: None
>
>  arch/x86/Makefile      |  5 +++++
>  arch/x86/cpu/Makefile  |  4 ++++
>  arch/x86/cpu/start64.S | 28 ++++++++++++++++++++++++++++
>  3 files changed, 37 insertions(+)
>  create mode 100644 arch/x86/cpu/start64.S
>

Reviewed-by: Bin Meng <bmeng.cn at gmail.com>