[RESEND PATCH v3 5/7] board: Add a gd flag for chain loading

[Bin Meng]

Hi Simon,

On Thu, Apr 9, 2020 at 2:58 AM Simon Glass <sjg at chromium.org> wrote:
>
> When U-Boot is run from another boot loader, much of the low-level init
> needs to be skipped.
>
> Add a flag for this and adjust ll_boot_init() to use it.
>
> Signed-off-by: Simon Glass <sjg at chromium.org>
> ---
>
> Changes in v3:
> - Add a new patch with a gd flag for chain loading
>
> Changes in v2: None
>
>  include/asm-generic/global_data.h | 1 +
>  include/init.h                    | 2 +-
>  2 files changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/include/asm-generic/global_data.h b/include/asm-generic/global_data.h
> index 5d027329fe0..3dc51e49ef7 100644
> --- a/include/asm-generic/global_data.h
> +++ b/include/asm-generic/global_data.h
> @@ -166,5 +166,6 @@ typedef struct global_data {
>  #define GD_FLG_SPL_EARLY_INIT  0x04000 /* Early SPL init is done          */
>  #define GD_FLG_LOG_READY       0x08000 /* Log system is ready for use     */
>  #define GD_FLG_WDT_READY       0x10000 /* Watchdog is ready for use       */
> +#define GD_FLG_NO_LL_INIT      0x20000 /* Don't perform low-level init    */

How about GD_FLG_SKIP_LL_INIT ?

>
>  #endif /* __ASM_GENERIC_GBL_DATA_H */
> diff --git a/include/init.h b/include/init.h
> index 2a33a3fd1e4..64fdf124916 100644
> --- a/include/init.h
> +++ b/include/init.h
> @@ -20,7 +20,7 @@ struct global_data;
>  #ifdef CONFIG_EFI_STUB
>  #define ll_boot_init() false
>  #else
> -#define ll_boot_init() true
> +#define ll_boot_init() (!(gd->flags & GD_FLG_NO_LL_INIT))
>  #endif

Regards,
Bin