Re: [PATCH v5 09/13] configs: stemmy: Boot EFI from external SD card

On Sun, Aug 23, 2026 at 10:39:28PM +0200, Linus Walleij wrote:
> Replace the fastboot-only command with standard bootflow scanning and
> enable the EFI loader so the removable SD card can provide the default
> ARM EFI executable. Filesystem probing is handled by the standard boot
> framework and does not require the FAT command.
> Skip global boot methods so EFI variables cannot redirect the scan to
> the internal eMMC.
> 
> Disable mkeficapsule because generating capsule tools is unrelated to
> running EFI payloads and adds a host GnuTLS build dependency.
> 
> Signed-off-by: Linus Walleij <[email protected]>

Reviewed-by: Stephan Gerhold <[email protected]>

Thanks!

> ---
>  configs/stemmy_defconfig | 5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
> 
> diff --git a/configs/stemmy_defconfig b/configs/stemmy_defconfig
> index 631ccababf1c..b1a14ab38210 100644
> --- a/configs/stemmy_defconfig
> +++ b/configs/stemmy_defconfig
> @@ -14,10 +14,10 @@ CONFIG_CUSTOM_SYS_INIT_SP_ADDR=0x100000
>  CONFIG_DEFAULT_DEVICE_TREE="ste-ux500-samsung-stemmy"
>  CONFIG_SYS_BOOTM_LEN=0x4000000
>  CONFIG_SYS_LOAD_ADDR=0x100000
> -# CONFIG_EFI_LOADER is not set
> +CONFIG_BOOTSTD_FULL=y
>  CONFIG_OF_BOARD_SETUP=y
>  CONFIG_USE_BOOTCOMMAND=y
> -CONFIG_BOOTCOMMAND="run fastbootcmd"
> +CONFIG_BOOTCOMMAND="bootflow scan -lbG"
>  CONFIG_SYS_CBSIZE=256
>  CONFIG_SYS_PBSIZE=276
>  CONFIG_SYS_CONSOLE_INFO_QUIET=y
> @@ -43,3 +43,4 @@ CONFIG_USB_GADGET_PRODUCT_NUM=0x685d
>  CONFIG_VIDEO=y
>  CONFIG_SYS_WHITE_ON_BLACK=y
>  CONFIG_VIDEO_MCDE_SIMPLE=y
> +# CONFIG_TOOLS_MKEFICAPSULE is not set
> 
> -- 
> 2.55.0
>