[PATCH 17/23] handoff-data: Add BL32_DT_OVL entry

Ahmad Fatoum a.fatoum at pengutronix.de
Thu Jan 15 06:31:10 PST 2026



On 11/10/25 9:34 PM, Marco Felsch wrote:
> Add support to pass a BL32 provided FDT_OVL from pbl to barebox.
> 
> Signed-off-by: Marco Felsch <m.felsch at pengutronix.de>

Reviewed-by: Ahmad Fatoum <a.fatoum at pengutronix.de>

> ---
>  include/pbl/handoff-data.h | 1 +
>  pbl/handoff-data.c         | 2 ++
>  2 files changed, 3 insertions(+)
> 
> diff --git a/include/pbl/handoff-data.h b/include/pbl/handoff-data.h
> index 7552ed5fc35f351f71822d309095980eaa764f63..88b1e9c80331a279564c338e758bd4928861ed56 100644
> --- a/include/pbl/handoff-data.h
> +++ b/include/pbl/handoff-data.h
> @@ -13,6 +13,7 @@ struct handoff_data {
>  #define HANDOFF_DATA_EXTERNAL_DT	HANDOFF_DATA_BAREBOX(2)
>  #define HANDOFF_DATA_ARM_MACHINE	HANDOFF_DATA_BAREBOX(3)
>  #define HANDOFF_DATA_EFI		HANDOFF_DATA_BAREBOX(4)
> +#define HANDOFF_DATA_BL32_DT_OVL	HANDOFF_DATA_BAREBOX(5)
>  
>  #define HANDOFF_DATA_BOARD(n)		(0x951726fb + (n))
>  
> diff --git a/pbl/handoff-data.c b/pbl/handoff-data.c
> index 42e53f986bf14408f25cdf4434a5c284f8361401..2e1287cd69232d09b13384db3f1813737d67656e 100644
> --- a/pbl/handoff-data.c
> +++ b/pbl/handoff-data.c
> @@ -189,6 +189,8 @@ static const char *handoff_data_entry_name(struct handoff_data_entry *hde)
>  		return "handoff FDT (external)";
>  	case HANDOFF_DATA_ARM_MACHINE:
>  		return "ARM machine number";
> +	case HANDOFF_DATA_BL32_DT_OVL:
> +		return "handoff BL32 FDT overlay";
>  	default:
>  		sprintf(name, "handoff %08x", hde->cookie);
>  		return name;
> 

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