[PATCH v4 5/9] board: Add a gd flag for chain loading

[Peng Fan]

> Subject: [PATCH v4 5/9] board: Add a gd flag for chain loading
> 
> 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 v4:
> - Rename flag to GD_FLG_SKIP_LL_INIT
> 
> 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 d9e220cfe3..8c78792cc9 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_SKIP_LL_INIT	0x20000	/* Don't perform low-level init
> */
> 
>  #endif /* __ASM_GENERIC_GBL_DATA_H */
> diff --git a/include/init.h b/include/init.h index 2a33a3fd1e..f84a1fc0e0
> 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_SKIP_LL_INIT))
>  #endif

Reviewed-by: Peng Fan <peng.fan at nxp.com>