[PATCH] common: Add CONFIG_SKIP_RELOCATE

[Caleb Connolly]

On 4/2/25 02:37, Jesse Taube wrote:
> Add a check for CONFIG_SKIP_RELOCATE in reserve_uboot to skip the
> relocation of the U-Boot image.
> CONFIG_SKIP_RELOCATE skips relocation of U-Boot to the end of RAM
> allowing for systems that have extremely limited ram to run U-Boot.
> 
> Signed-off-by: Jesse Taube <Mr.Bossman075 at gmail.com>

Reviewed-by: Caleb Connolly <caleb.connolly at linaro.org>> ---
>   Kconfig          | 7 +++++++
>   common/board_f.c | 7 +++++++
>   2 files changed, 14 insertions(+)
> 
> diff --git a/Kconfig b/Kconfig
> index 6379a454166..f518768615f 100644
> --- a/Kconfig
> +++ b/Kconfig
> @@ -443,6 +443,13 @@ config TOOLS_DEBUG
>   	  it is possible to set breakpoints on particular lines, single-step
>   	  debug through the source code, etc.
>   
> +config SKIP_RELOCATE
> +	bool "Skips relocation of U-Boot to end of RAM"
> +	default n
> +	help
> +	  Skips relocation of U-Boot allowing for systems that have extremely
> +	  limited ram to run U-Boot.
> +
>   endif # EXPERT
>   
>   config PHYS_64BIT
> diff --git a/common/board_f.c b/common/board_f.c
> index 99616fdac80..d51696b8eda 100644
> --- a/common/board_f.c
> +++ b/common/board_f.c
> @@ -476,6 +476,13 @@ static int reserve_trace(void)
>   
>   static int reserve_uboot(void)
>   {
> +	/*
> +	 * This should be the first place GD_FLG_SKIP_RELOC is read from.
> +	 * Set GD_FLG_SKIP_RELOC flag if CONFIG_SKIP_RELOCATE is enabled.
> +	 */
> +	if (CONFIG_IS_ENABLED(SKIP_RELOCATE))
> +		gd->flags |= GD_FLG_SKIP_RELOC;
> +
>   	if (!(gd->flags & GD_FLG_SKIP_RELOC)) {
>   		/*
>   		 * reserve memory for U-Boot code, data & bss

-- 
Caleb (they/them)