[U-Boot] [PATCH v8 1/9] x86: Add new slimbootloader CPU type

[Bin Meng]

On Fri, Aug 2, 2019 at 3:03 PM Park, Aiden <aiden.park at intel.com> wrote:
>
> This slimbootloader CPU type is to enable U-Boot as a payload which
> runs on top of Slim Bootloader (https://github.com/slimbootloader).
> The Slim Bootloader is designed with multi-stage architecture for
> the execution from reset vector to OS booting, and supports QEMU,
> Apollolake, Whiskeylake and Coffeelake platforms consuming Intel
> FSP (https://github.com/IntelFsp) for silicon initialization
> including CAR and memory initialization.
> The Slim Bootloader generates new HOB (Hand Off Block) which are
> serial port info, memory map info, performance data info and so on,
> and passes it to a Payload. U-Boot as a payload will use these HOB
> information for basic initialization such as serial console.
>
> As an initial commit,
> - Add CONFIG_SYS_SLIMBOOTLOADER to enable slimbootloader CPU type
> - Add new arch/x86/cpu/slimbootloader directory with minimum codes
> - Get hob_list pointer from Slim Bootloader
>
> Signed-off-by: Aiden Park <aiden.park at intel.com>
> Reviewed-by: Bin Meng <bmeng.cn at gmail.com>
> Reviewed-by: Andy Shevchenko <andy.shevchenko at gmail.com>
> ---
> Changes in v8:
>   * Add a space between acronym and (definition)
>
> Changes in v6:
>   * Add CONFIG_USE_HOB
>   * Move some CONFIGs to board Kconfig
>   * Remove arch-slimbootloader/slimbooloader.h
>   * Apply code-review comments
>
> Changes in v4:
>   * Use common arch/x86/cpu/start.S
>   * Update U-boot or u-boot to U-Boot in commit message
>
> Changes in v3:
>   * Add a brief description about Slim Bootloader
>   * Enable USB_KEYBOARD, E1000 and RTL8169 by default
>   * Fix comment from code review
>
>  arch/x86/Kconfig                             |  9 +++++++++
>  arch/x86/cpu/Makefile                        |  1 +
>  arch/x86/cpu/slimbootloader/Kconfig          | 19 ++++++++++++++++++
>  arch/x86/cpu/slimbootloader/Makefile         |  5 +++++
>  arch/x86/cpu/slimbootloader/car.S            | 14 +++++++++++++
>  arch/x86/cpu/slimbootloader/slimbootloader.c | 21 ++++++++++++++++++++
>  arch/x86/cpu/start.S                         |  6 ++++--
>  arch/x86/include/asm/global_data.h           |  2 +-
>  arch/x86/lib/asm-offsets.c                   |  2 +-
>  9 files changed, 75 insertions(+), 4 deletions(-)
>  create mode 100644 arch/x86/cpu/slimbootloader/Kconfig
>  create mode 100644 arch/x86/cpu/slimbootloader/Makefile
>  create mode 100644 arch/x86/cpu/slimbootloader/car.S
>  create mode 100644 arch/x86/cpu/slimbootloader/slimbootloader.c
>

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